KR20230001813A - Insert device for cartheter - Google Patents

Abstract

The present invention is a catheter insertion device for inserting a catheter into a patient's body, comprising: a housing having a certain accommodation space and disposing in the accommodation space in a state where an end of the catheter protrudes to the outside by a certain length; a needle provided to pass through the catheter and protrude forward along the longitudinal direction of the housing; a guide wire provided to protrude a predetermined length forward along the longitudinal direction of the housing with one end bent while passing through the catheter in a state seated on an upper surface of the needle; The housing is in a form in which one side is connected to the other end of the guide wire and the other side is exposed to the outside of the housing so as to adjust the direction of one end of the guide wire that protrudes and bends to the outside of the catheter and the degree of protrusion of the guide wire. A guide wire controller provided in; By providing a catheter insertion device including a catheter, it is possible to adjust the direction of the guide wire during the catheter procedure and to connect the catheter by adjusting the length of the catheter according to the patient, so that the catheter can be used widely, thereby increasing the utilization of the catheter. there is

Description

Catheter insertion device {INSERT DEVICE FOR CARTHETER}

The present invention relates to a catheter insertion device, and more particularly, to allow the direction of a guide wire to be adjusted during catheter procedure and to connect a catheter by adjusting the length of the catheter according to the patient so that the catheter can be widely used. It relates to a catheter insertion device that can increase utilization.

BACKGROUND OF THE INVENTION Various types of catheters are used to discharge or remove bile or pus from a lesion site in the human body's abdominal cavity to the outside of the body, or to remove unnecessary tissues in the body.

Among the functions required for the catheter, the direction control function is particularly important. Because, one of the most important things to do when performing the procedure as described above is to minimize injury to the human body. If the direction of the catheter is not freely controlled, injury to the human body is unavoidable in the process of removing bodily fluids or lesions from the complex body. because it will add

Korean Registered Patent No. 10-0813147, US Patent Publication No. US2008/0097394A1, etc. discloses a medical catheter capable of maintaining a distal end portion of a catheter tube body transformed into a pigtail shape by manipulating a monofilament.

1 is an exploded perspective view showing an exploded view of a conventional catheter, and FIG. 2 is a plan view showing a structure in which a conventional catheter tube body is deformed by a monofilament.

As shown in FIG. 1, the medical catheter is composed of a catheter tube body 2 and a hub 3, and by pulling the monofilament 4, the distal end of the catheter tube body 2 is shown in FIG. As shown, it is deformed into a pigtail shape.

And, the trocar shown in FIG. 1 allows the catheter 1 to be inserted into the human body in a straightened state, and the cannula 7 has a distal end portion of the catheter tube body 2 deformed into a pigtail shape. Used for straightening.

However, as shown in FIG. 2, in the medical catheter 1 as described above, when the distal end portion of the catheter tube body 2 is deformed into a peak tail shape, the monofilament 4 is pulled and acts like a knife. Thus, it has a significant disadvantage of causing unnecessary injury to body tissues.

In addition, when saline or drugs are injected into the affected area through the medical catheter 1 as described above, surgical tools inserted into the catheter 1, such as tissue removal and coagulation electrodes, forceps, etc. Since the saline solution and the drug must be injected in a state in which it is withdrawn, the procedure becomes cumbersome. In addition, there is also a disadvantage in that bacterial infection may occur in the process of tissue removal and coagulation electrodes, forceps, etc. being detached from the outside and then inserted back into the affected area as described above.

Therefore, there is an urgent need for the development of a catheter that improves the above disadvantages.

The object of the present invention, devised in view of the above, is to enable the direction of the guide wire to be adjusted during the catheter procedure and to connect the catheter by adjusting the length of the catheter to suit the patient so that the catheter can be widely used. It is to provide a catheter insertion device that can increase utilization.

A catheter insertion device for achieving the object of the present invention as described above is a mid-line catheter insertion device for inserting a catheter into a patient's body, and has a certain accommodation space and a state where the end of the catheter protrudes a certain length to the outside. a housing to be disposed in the receiving space; a needle provided to pass through the catheter and protrude forward along the longitudinal direction of the housing; a guide wire provided to protrude a predetermined length forward along the longitudinal direction of the housing with one end bent while passing through the catheter in a state seated on an upper surface of the needle; The housing is in a form in which one side is connected to the other end of the guide wire and the other side is exposed to the outside of the housing so as to adjust the direction of one end of the guide wire that protrudes and bends to the outside of the catheter and the degree of protrusion of the guide wire. A guide wire controller provided in; characterized by including

Here, the guide wire controller may be composed of a direction adjusting unit for adjusting the direction of one end of the guide wire, and a length adjusting unit for adjusting the degree of protrusion of the guide wire.

In addition, the central region of the guide wire is bent inside the housing so that the other end of the guide wire may be connected to the guide wire controller in a state in which partial regions overlap each other.

In addition, the direction control unit has a first sawtooth member which is inserted and fixed at the center of the other end of the guide wire, has a screw thread formed on the outer surface thereof, and is rotatably installed inside the housing, and on the upper side of the first sawtooth member. A second sawtooth member rotatably disposed in engagement with the first sawtooth member and installed to be exposed to the outside of the housing, and a support member rotatably supporting the first sawtooth member and the second sawtooth member. there is.

In addition, the length adjusting unit is coupled to a slit in which a part of the outer surface of the housing is cut and is installed to be slidably movable along the longitudinal direction of the housing, and the support member is fixedly coupled to linearly reciprocate the support member according to the sliding movement. It can be configured with a button for adjusting the length.

In addition, a catheter length adjustment unit capable of adjusting the length of the catheter inserted into the patient's body may be further provided at one side of the housing.

In addition, the catheter length adjustment unit has a partial area disposed inside the housing to fix an end of the catheter and a remaining area protruding out of the housing so as to be slidably movable along the longitudinal direction of the housing. It may consist of wings.

As described above, the catheter insertion device according to the present invention enables the direction of the guide wire to be adjusted during the catheter procedure, and the length of the catheter can be adjusted and connected according to the patient, so that the catheter can be widely used, thereby increasing the usability of the catheter. has the effect of increasing

1 is an exploded perspective view showing a conventional catheter disassembled;
2 is a plan view showing a structure in which a conventional catheter tube body is deformed by a monofilament;
3 is a perspective view showing the structure of a catheter insertion device according to an embodiment of the present invention;
4 is a side view showing the structure of a catheter insertion device according to an embodiment of the present invention;
5 is an operation diagram illustrating the operation of the catheter insertion device according to an embodiment of the present invention.

Hereinafter, a catheter insertion device according to an embodiment of the present invention will be described in more detail with reference to the accompanying drawings.

3 is a perspective view showing the structure of a catheter insertion device according to an embodiment of the present invention, Figure 4 is a side view showing the structure of a catheter insertion device according to an embodiment of the present invention, and FIG. It is an operation diagram showing the operation of the catheter insertion device according to one embodiment.

As shown in these figures, the catheter insertion device according to one embodiment of the present invention is a mid-line catheter insertion device for inserting the catheter 1 into the patient's body, and has a certain accommodation space 110 and the catheter A housing 100 configured to be disposed in the receiving space 110 with an end portion of (1) protruding outward by a predetermined length; a needle 200 protruding forward by a predetermined length along the longitudinal direction of the housing 100 through the catheter 1; A guide wire 300 protruding forward by a predetermined length along the longitudinal direction of the housing with one end bent while passing through the catheter 1 while being seated on the upper surface of the needle 200; One side is connected to the other end of the guide wire 300 and the other side is connected to the other end of the guide wire 300 so as to adjust the direction of one end of the guide wire 300 that protrudes and bends to the outside of the catheter 1 and the degree of protrusion of the guide wire 300. The guide wire controller 400 provided in the housing 100 in a form exposed to the outside of the housing 100; consists of including

The housing 100 serves to support various parts so that the user can insert the catheter 1 into the patient's body by hand grip, and a certain accommodation space 110 is formed therein.

The housing 100 is formed to have a thick thickness at the rear area in contact with the user's palm and is tapered to have a relatively thin thickness toward the front so that the user can increase grip and stability when gripping the housing 100 .

A through hole is formed at the front of the housing 100 so that the catheter 1, noodle 200, and guide wire 300 can protrude forward.

In addition, a slit 120 into which a guide wire controller 400 to be described later can be installed is cut on one side of the upper surface, and a guide hole 130 into which a catheter length adjustment unit 500 to be described later can be installed on one side of the lower surface. This through-hole is formed.

The noodle 200 is a member inserted into the human body by penetrating the patient's skin when the catheter 1 is initially inserted so that the catheter 1 can be inserted into the patient's body, and is fixedly coupled to one side of the housing 100. In this state, the catheter 1 disposed inside the housing 100 is passed through and the end portion protrudes to the outside of the housing 100 by a certain length.

In such a noodle 200, a portion of the guide wire 300 is seated on the upper surface so that the guide wire 300 can guide the moving direction. ) to settle.

When the noodle 200 is inserted into the patient's skin, the guide wire 300 is inserted into the human body together with the noodle 200, and is inserted into the patient's body as long as the length required for the procedure, so that the catheter 1 is inserted into the human body. It serves to guide the direction of insertion.

The central region of the guide wire 300 is bent inside the housing 100 so that the other end of the guide wire 300 is connected to the guide wire controller 400 in a state where some regions overlap with each other.

This is to minimize the length of the housing 100 while preventing the guide wire 300 from interfering with the catheter 1 or the noodle 200 disposed inside the housing 100, thereby limiting the accommodation space of the housing 100 ( 110) to maximize space utilization.

In addition, the end of the guide wire 300 is formed to be bent to one side so that the direction in which the guide wire 300 travels can be switched while changing the direction in which the bent region is disposed by the guide wire controller 400 to be described later. It is effective to

On the other hand, the guide wire controller 400 protrudes to the outside of the catheter 1, and one side is the other side of the guide wire 300 so that the direction of one end of the bent guide wire 300 and the degree of protrusion of the guide wire 300 can be adjusted. A member provided in the housing 100 in a form connected to an end and exposed to the outside of the housing 100 at the other side.

The guide wire controller 400 is composed of a direction adjusting unit 410 for adjusting the direction of one end of the guide wire 300 and a length adjusting unit 420 for adjusting the degree of protrusion of the guide wire 300.

Here, the direction adjusting unit 410 is a first toothed member 411 in which the other end of the guide wire 300 is inserted into the center and fixed, and a screw thread is formed on the outer surface to be installed rotatably inside the housing 100. And, the second sawtooth member 412, which is rotatably disposed in engagement with the first sawtooth member 411 on the upper side of the first sawtooth member 411 and exposed to the outside of the housing 100, and the first sawtooth It is configured to include a support member 413 for rotatably supporting the member 411 and the second sawtooth member 412 .

The first sawtooth member 411 is rotatably installed inside the housing 100 and the guide wire 300 is inserted and fixed in the center so that the guide wire 300 is held together by the rotation of the first sawtooth member 411. As it is rotated, it serves to change the direction of the bent region of one end of the guide wire 300.

The second sawtooth member 412 is provided so that a certain area is exposed and protruded to the outside of the housing 100 in a state of being engaged with the first sawtooth member 411, so that the user rotates the second sawtooth member 412, resulting in By rotating the first sawtooth member 411, the direction of the guide wire 300 can be changed.

The first tooth member 411 and the second tooth member 412 are supported by being rotatably coupled to a plate-shaped support member 413 disposed opposite to each other, and the support member 413 is a length adjustment button (to be described later) 421) to support them.

In addition, the diameters of the first sawtooth member 411 and the second sawtooth member 412 can be designed differently according to the needs of the user. If it is necessary to finely adjust the direction of one end of the guide wire 300, the first sawtooth member The diameter of the member 411 is formed to be relatively larger than the diameter of the second sawtooth member 412 .

In addition, when it is necessary to quickly adjust the direction of one end of the guide wire 300, the diameter of the first toothed member 411 is formed to be relatively smaller than the diameter of the second toothed member 412.

In addition, in order for the guide wire 300 to be rotated by the degree the user rotates the first tooth member 411 so that the direction is changed, the diameters of the first tooth member 411 and the second tooth member 412 are the same. will form

The length adjustment unit 420 is coupled to the slit 120 in which a part of the outer surface of the housing 100 is cut, is installed to be slidably movable along the longitudinal direction of the housing 100, and the support member 413 is fixedly coupled to slide. It is composed of a length adjustment button 421 that linearly reciprocates the support member 413 according to the movement.

When the support member 413 is fixedly coupled to the length adjustment button 421, a portion of the upper portion of the first saw member 411 protrudes out of the length adjustment button 421, thereby stably stabilizing the first saw member 411. It is effective to make it rotate to .

The length control button 421 is movably coupled to the slit 120 formed in the housing 100, and the guide wire 300 protrudes to the outside of the housing 100 by rectilinear reciprocating motion along the longitudinal direction of the housing 100 It plays a role in enabling the adjustment of the length of the

Since the degree to which the guide wire 300 can protrude corresponds to the length of the slit 120, when the guide wire 300 needs to be protruded long and inserted deep into the body, the catheter insertion with a long slit 120 When a device is selected and the guide wire 300 protrudes short and needs to be inserted thinly into the body, a catheter insertion device having a short slit 120 may be selected to allow the procedure to be performed.

The lower surface of the length adjustment button 421 is formed inclined upward so that the thickness becomes thinner as it goes toward the rear of the housing 100 along the outer surface of the tapered housing 100, so that the length adjustment button 421 is moved toward the rear of the housing 100. It is preferable not to interfere with the outer surface of the housing 100 during movement.

In addition, the upper surface of the length adjustment button 421 is formed flat so that the height of the first saw member 411 protrudes outward is generally uniform so that the user can stably rotate the first saw member 411 it is effective

On one side of the housing 100, a catheter length adjustment unit 500 capable of adjusting the length of the catheter 1 inserted into the patient's body is further provided so that the catheter 1 is inserted into the patient's body according to the patient. It is desirable to allow the length to be adjusted so that an effective procedure can be performed.

To this end, the catheter length adjustment unit 500 has a partial area disposed inside the housing 100 so that the end of the catheter 1 is fixed and the remaining area protrudes out of the housing 100 so that the housing 100 It may be composed of a catheter wing 510 installed to be slidably movable along the longitudinal direction.

The catheter wing 510 is disposed inside the housing 100 and has a fixing part 511 in which the end of the catheter 1 is inserted inwardly and fixed, and a fixing part 511 on one side of the lower surface of the fixing part 511 It may be composed of an extension part 512 formed integrally and extending a certain length so as to protrude out of the housing 100 .

It is effective to stably protrude the catheter 1 toward the front of the housing 100 by forming the extension part 512 inclined toward the rear of the housing 100 so as to form a predetermined angle with the fixing part 511 .

A process of performing a procedure using the catheter insertion device according to an embodiment of the present invention having the configuration described above will be described with reference to FIGS. 3 and 5.

First, the noodle 200 is inserted into a part of the patient's body where the catheter 1 should be inserted, so that the guide wire 300 and the noodle 200 are inserted into the patient's body.

Here, the guide wire 300 is inserted into the body of the patient and deformed so that the end is bent so that the direction of the end of the guide wire 300 can be adjusted by the guide wire controller 400.

As shown in FIG. 3, to adjust the direction in which the guide wire 300 is inserted into the body using the direction control unit 410 in a state where the end of the guide wire 300 is bent, the guide wire ( 300), when the second saw-tooth member 412 is rotated, the first saw-tooth member 411 meshed with the second saw-tooth member 412 is rotated in the central area of the first saw-tooth member 411. As the fixed guide wire 300 rotates, the direction of the bent guide wire 300 is changed so that the direction can be adjusted.

As shown in (a) of FIG. 5, when the insertion of the guide wire 300 into the body is completed while the direction is adjusted in the desired direction, as shown in (b) of FIG. 5, the catheter length adjustment unit ( The catheter (1) insertion procedure is completed by inserting the catheter (1) into the body at a length suitable for the patient using the catheter wing (510) of 500).

The catheter insertion device having the above configuration enables the direction of the guide wire to be adjusted during the catheter procedure, and the length of the catheter can be adjusted and connected according to the patient so that the catheter can be used widely, thereby increasing the usability of the catheter. there will be

Since the above has only been described with respect to some of the preferred embodiments that can be implemented by the present invention, as noted, the scope of the present invention should not be construed as being limited to the above embodiments, and the scope of the present invention described above It will be said that the technical idea and the technical idea together with the root are all included in the scope of the present invention.

100: housing 110: accommodation space
120: slit 130: guide ball
200: noodle 300: guide wire
400: guide wire controller 410: direction control unit
411: first sawtooth member 412: second sawtooth member
413: support member 420: length adjustment unit
421: length control button 500: catheter length control unit
510: catheter wing

Claims (7)

As a mid-line catheter insertion device for inserting the catheter (1) into the patient's body,
a housing 100 having a certain accommodation space 110 and disposing in the accommodation space 110 in a state where an end of the catheter 1 protrudes to the outside by a certain length;
a needle 200 protruding forward by a predetermined length along the longitudinal direction of the housing 100 through the catheter 1;
A guide wire 300 protruding forward by a predetermined length along the longitudinal direction of the housing with one end bent while passing through the catheter 1 while being seated on the upper surface of the needle 200;
One side is connected to the other end of the guide wire 300 and the other side is connected to the other end of the guide wire 300 so as to adjust the direction of one end of the guide wire 300 that protrudes and bends to the outside of the catheter 1 and the degree of protrusion of the guide wire 300. The guide wire controller 400 provided in the housing 100 in a form exposed to the outside of the housing 100;
Catheter insertion device comprising a. According to claim 1,
The guide wire controller 400 is composed of a direction adjusting unit 410 for adjusting the direction of one end of the guide wire 300 and a length adjusting unit 420 for adjusting the degree of protrusion of the guide wire 300. catheter insertion device. According to claim 2,
The central region of the guide wire 300 is bent inside the housing 100 so that the other end of the guide wire 300 is connected to the guide wire controller 400 in a state in which some regions overlap with each other. Characterized by a catheter insertion device. According to claim 3,
The direction control unit 410 is a first toothed member 411 in which the other end of the guide wire 300 is inserted into the center and fixed, and a screw thread is formed on the outer surface to be installed to be rotatably driven inside the housing 100. ), and the second tooth member 412 disposed above the first tooth member 411 to be rotatably engaged with the first tooth member 411 and exposed to the outside of the housing 100 , The catheter insertion device characterized in that it comprises a support member 413 for rotatably supporting the first tooth member 411 and the second tooth member 412. According to claim 4,
The length adjustment part 420 is coupled to the slit 120 in which a part of the outer surface of the housing 100 is cut and is installed to be slidably movable along the longitudinal direction of the housing 100, and the support member 413 A catheter insertion device characterized in that it is composed of a length adjustment button 421 that is fixedly coupled and linearly reciprocates the support member 413 according to sliding movement. According to claims 1 to 5,
Catheter insertion device characterized in that one side of the housing (100) is further provided with a catheter length adjustment unit (500) capable of adjusting the length of the catheter (1) is inserted into the patient's body. According to claim 6,
The catheter length adjusting part 500 has a partial area disposed inside the housing 100 so that the end of the catheter 1 is fixed and the remaining area protrudes out of the housing 100 so that the housing ( 100) catheter insertion device characterized in that consisting of a catheter wing 510 installed to be slidable along the longitudinal direction.

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