KR101916215B1 - Apparatus for Guiding Catheterization and Medical Catheter - Google Patents

Abstract

The present invention relates to an apparatus for guiding catheterization and to a medical catheter, wherein the medical catheter comprises: a wire providing a supporting force to an insertion tube part so that the insertion tube part is maintained in a deformed form; and an induction part coupled to the wire, wherein the insertion tube part includes a neb surface disposed at a neb, the wire includes a fluid passage through which a fluid for inflating the induction part flows, and the induction part may expand as the fluid flows through the fluid passage and may be connected to the wire so as to cover the neb surface.

Description

[0001] Apparatus for Guiding Catheterization and Medical Catheter [0002]

TECHNICAL FIELD The present invention relates to an intubation induction device and a medical catheter which are used to connect an external organ to an external body of a patient.

The medical catheter is used as a connecting means for connecting the outside of the patient's body (organ) with the outside. For example, a medical catheter may be intubated in the intracranial tube to maintain airway and aspirate airway secretions, or may be intubated in the central venous catheter to administer various medications directly to the patient's central venous catheter.

Figures 1 and 2 are schematic cross-sectional views of a medical catheter according to the prior art.

Referring to FIGS. 1 and 2, a medical catheter 100 according to the prior art includes an intubating section 110.

The intubating section 110 connects the internal organs of the patient with the outside. The intubation unit 110 is intubated through an intracranial tube, a central vein tube or the like (hereinafter, referred to as a tube), thereby connecting the patient's lung, the central vein tube, etc. to the outside. Accordingly, the intubation unit 110 performs a function of inflow and outflow of air through a transfer passage formed therein, a function of supplying medicines, and the like. The intubating unit 110 is released from the tube after achieving the intended purpose of flowing air, supplying medicine, and the like.

The intubating section 110 is formed to have flexibility. Accordingly, the intubating portion 110 can be smoothly inserted into the tube by positioning the leading end face 111 of the intubating portion 110 to face the inlet of the tube 200, It is difficult for the intubation section 110 to be maintained in a deformed shape such that the distal end face 111 faces the mouth of the tube due to flexibility.

The medical catheter 100 according to the related art includes the wire 120 so that the intubation part 110 is maintained in a deformed shape in accordance with the direction of the inlet of the tube.

The wire 120 provides a biasing force to keep the intubating unit 110 in a deformed shape. The wire 120 supports the inner surface of the intubating unit 110 while being inserted into the intubating unit 110 to thereby maintain the intubating unit 110 in a deformed form. The operator may deform the wire 120 and the intubation unit 110 while the wire 120 is inserted into the intubation unit 110 so that the distal end face 111 faces the entrance of the tube. After changing the shape of the intubation part 110, the intubation part 110 can be intubated through the tube. After the intubating section 110 is intubated in the tube, the wire 120 is detached from the interior of the intubation section 110 so that the intubating section 110 can achieve a desired purpose such as air inflow, .

However, even if the distal end face 111 is deformed using the wire 120 so that the distal end face 111 faces the inlet of the tube, the distal end face 111 acting between the distal end face 111 and the tube Interference can not be solved. Accordingly, the medical catheter 100 according to the prior art not only causes the suffering of the patient as the distal end face 111 rubs against or collides with the tube during the intubation of the intubating tube 110 into the tube, There is a problem that infection can be caused when foreign bacteria or the like penetrate through a wound.

Disclosure of Invention Technical Problem [8] Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and an object of the present invention is to provide an intubation induction device and a medical catheter for reducing the degree of friction or collision in an intramural duct,

In order to solve the above problems, the present invention can include the following configuration.

A medical catheter according to the present invention includes: an intubating unit for intubating; A wire for providing a compressive force to the intubating section so that the intubating section is maintained in a deformed shape; And an induction part coupled to the wire, wherein the intubation part includes a tip end face disposed at a tip end, the wire including a fluid passage through which a fluid for inflating the induction part flows, The guide portion may be expanded into the fluid passage through the fluid passage to be coupled to the wire so as to cover the distal end surface.

The intubation induction device according to the present invention is characterized in that the intubation induction device comprises: a wire for providing a compressive force to the intubating section so that the intubating section is maintained in a deformed form; And an induction part coupled to the wire, wherein the intubation part includes a tip end face disposed at a tip end, the wire including a fluid passage through which a fluid for inflating the induction part flows, The guide portion may be inflated so as to cover the distal end surface as the fluid flows through the fluid path, and may be inflated so as to be smaller in size as it extends forward in which the intubating portion is intubated.

According to the present invention, the following effects can be achieved.

The present invention not only alleviates the patient's suffering caused by friction or collision with the intracranial tube or the central vein tube during intubation of the patient's intracorporeal tract or central vein tube, Thereby contributing to prevention of infection caused by external bacteria or the like.

1 is a schematic side view of a medical catheter according to the prior art;
FIG. 2 is a schematic cross-sectional view of a medical catheter according to the related art showing a state in which the distal end surface is frictionally or collided with the inner wall of the tube;
3 is a schematic cross-sectional view of a medical catheter according to the present invention, in which a wire and an introducing portion are inserted into an intubating portion;
FIG. 4 is a schematic cross-sectional view showing a medical catheter according to the present invention,
FIG. 5 is a schematic cross-sectional view showing a medical catheter according to the present invention in which the guide portion is inflated so as to cover the distal end surface as fluid flows in.
FIG. 6 is a schematic sectional view showing a medical catheter according to the present invention in which a guide section supports a tube so that a distal end surface thereof is spaced apart from the tube during intubation;
7 is a schematic cross-sectional view of a medical catheter according to the present invention, in which the second guide member is formed to have a thicker thickness than the first guide member
8 is a schematic cross-sectional view of a medical catheter according to the present invention, in which the reinforcing member is coupled to the second guide member

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT Hereinafter, embodiments of an intubation induction device and a medical catheter according to the present invention will be described in detail with reference to the accompanying drawings. Since the intestinal guiding device according to the present invention can be included in the medical catheter according to the present invention, an embodiment of the medical catheter according to the present invention will be explained together.

3 to 8, the medical catheter 1 according to the present invention is used as a connecting means for connecting the internal organs of the patient with the outside. The medical catheter 1 according to the present invention can be used in various fields such as urology, surgery, internal medicine, obstetrics and gynecology. For example, the medical catheter 1 according to the present invention can be connected to the outside of the patient's lung, the central vein duct, and the like by intubating the intraluminal, central vein, etc. of the patient (hereinafter referred to as "vessel"). The medical catheter 1 according to the present invention can be fixed to the tube when it is intubated. Thereafter, the medical catheter 1 according to the present invention can perform various functions such as performing a function of retaining the airway of a patient, aspirating secretions in the airways, or injecting medicines.

The medical catheter 1 according to the present invention includes an intubating section 2 for intubation, a wire 3 for providing a compressive force to the intubating section 2 such that the intubating section 2 is maintained in a deformed form, , And an induction part (4) coupled to the wire (3). The intubating section (2) includes a distal end face (21) arranged at the distal end. The wire (3) includes a fluid passage (32) through which the fluid for inflating the guide part (4) flows. The guide portion 4 expands as the fluid flows through the fluid passage 32 and is coupled to the wire 3 so as to cover the distal end surface 21.

Accordingly, the medical catheter 1 according to the present invention is implemented so that the distal end face 21 does not come into direct contact with the tube through the guide portion 4 during the intubation of the tube. Accordingly, the medical catheter 1 according to the present invention not only alleviates the suffering of the patient caused by friction or collision of the distal end surface 21 with the tube, but also prevents the occurrence of a wound on the tube, And the like.

Hereinafter, the intubating section 2, the wire 3, and the guide section 4 will be described in detail with reference to the accompanying drawings.

3 to 8, the intubating section 2 is for intubation. The intubating section 2 can be intubated into the tube. Through the intubating section 2, the internal organs of the patient can be connected to the outside. The wire 3 and the guide 4 can be inserted forward (in the arrow direction of the FD) from the rear end of the intubating section 2 before the intubating section 2 is inserted into the tube have. Next, the intubating section 2 is placed so that the distal end surface 21 faces the entrance of the tube in a deformed state by the practitioner, and can be intubated into the tube. In this case, the intubating section 2 may be deformed into a shape similar to the shape of the tube so as to facilitate the intubation of the tube. For example, the intubating section 2 may be deformed into a shape similar to that of a patient's intracranial tube, central vein tube, and the like.

The intubating section 2 may be formed in an empty and stretchable tube shape, but is not limited thereto. The intubating section 2 may be of a flexible type and can accommodate the wire 3 and the guide section 4 therein But may be formed in other forms. For example, the intubating section 2 may be formed in the shape of a tube made of silicon.

3 to 6, the intubating section 2 may include the distal end face 21.

The distal end surface (21) is disposed at the distal end (tip end) of the intubating section (2). The distal end surface 21 may correspond to a face (face) facing forward (in the arrow direction of the FD) in the intubating section 2. The forward direction (FD arrow direction) is the direction in which the intubating section 2 is intubated. The tip of the intubating section 2 may be formed on the outer circumference of the distal end surface 21.

3 to 6, the intubating section 2 may include an intubating member 22. [

The distal end face 21 is formed on the intubating member 22. The intubating member (22) can function as the body of the intubating section (2). In this case, the distal end surface 21 may be formed on the intubation member 22 so as to face the forward (FD arrow direction). The intubating member 22 may be deformable by a force applied by a practitioner. The intubation member 22 may be formed of a flexible material, but is not limited thereto. The flexible material may be formed of a flexible material. For example, the intubating member 22 may be formed of a silicone material.

The intubation member 22 may be formed to have a smaller size as it extends toward the distal end. Accordingly, the medical catheter 1 according to the present invention is realized such that the distal end face 21 is spaced apart from the tube, and the area of the distal end face 21 is reduced. Therefore, the medical catheter 1 according to the present invention can further reduce the possibility that a wound is generated in the tube by further reducing the case where the distal end surface 21 frictionally collides with the tube.

3 to 6, the intubating section 2 may include a passage 23.

The moving passage 23 is a passage through which the wire 3 is inserted. The movement passage 23 may be formed to penetrate the intubation member 22. The wire 3 can be inserted into or removed from the intubating section 2 through the moving passage 23. [ The transfer passage 23 can communicate with the internal organs of the patient and the outside of the patient, respectively. A fluid such as air, medicine or the like may flow into the moving passage 23. [

3 to 8, the wire 3 provides a compressive force to the intubating section 2 such that the intubating section 2 is maintained in a deformed form. The wire (3) can be inserted into the intubating section (2). The wire (3) can be deformed by the operator while being inserted into the intubating section (2). In this case, the wire (3) can support the inner wall of the intubating section (2) formed by the moving passage (23). Accordingly, the wire 3 can provide a compressive force to the intubating section 2, so that the intubating section 2 can maintain its deformed shape without returning to the original shape. Thereafter, the intubating section 2 can be intubated in the tube while being maintained in a deformed shape by the wire 3.

The wire (3) may be formed to have a smaller diameter than the moving passage (23). The wire 3 may be made of a metal material so that it can be deformed by a practitioner while maintaining a deformed shape. The wire 3 may be Teflon-processed to prevent the wire 3 from being damaged in the process of being deformed by the operator.

3 to 8, the wire 3 may include a wire body 31 and the fluid passage 32. [

The wire body 31 corresponds to the main body of the wire 3. The wire body 31 may function as an outer wall surrounding the fluid passage 32 so that the fluid passage 32 is formed. Accordingly, the wire main body 31 can prevent the fluid flowing through the fluid passage 32 from leaking to the moving passage 23. [0053]

The fluid passage (32) flows the fluid for inflating the guide portion (4). The fluid passage (32) may be formed through the wire body (31). Accordingly, the fluid passage (32) can communicate with the inside and the outside of the guide portion (4), respectively. When the pressure of the fluid passage 32 increases as the operator injects the fluid from the outside into the fluid passage 32, the fluid can flow toward the guiding portion 4. [ Accordingly, the guide portion 4 can be expanded. When the practitioner reduces the pressure of the fluid passage 32 from the outside, the fluid inside the guide portion 4 can be discharged to the outside through the fluid passage 32. Accordingly, the guide portion 4 can be contracted.

The medical catheter 1 according to the present invention has a function of supporting the wire 3 to maintain the deformed shape of the intubating section 2 by forming the fluid passage 32 in the wire body 31 And a flow function for flowing the fluid for the expansion of the guide portion 4 can be performed together. Therefore, the medical catheter 1 according to the present invention is designed to flow the fluid using the wire 3 even if the device for separately flowing the fluid for inflating the guide part 4 is not provided, . ≪ / RTI >

3 to 8, the guide portion 4 is coupled to the wire 3. As shown in FIG. The induction part 4 may be coupled to the wire 3 so that the inside thereof communicates with the fluid passage 32. Therefore, fluid may flow into the guide portion 4 from the fluid passage 32 or may flow out from the interior of the guide portion 4 to the fluid passage 32.

The guide portion 4 may expand as the fluid flows through the fluid passage 32. In this case, the guiding portion 4 may expand to cover the distal end surface 21. Hereinafter, the process of expanding the guide portion 4 to cover the distal end surface 21 will be described in detail with reference to FIGS. 3 to 5. FIG.

3, the guide portion 4 may be inserted into the intubating portion 2 together with the wire 3 while being supported by the wire 3 in a contracted state. In this case, the guide portion 4 can be inserted forward (in the arrow direction of the FD) from the rear end of the intubating portion 2.

4, the guide portion 4 is inserted forwardly (in the direction of the arrow FD) along the movement passage 23, As shown in Fig. In this case, the operator can insert the guide 4 in the forward direction (arrow direction of the FD) by operating the wire 3.

5, the guide portion 4 may expand as fluid flows from the fluid passage 32 formed in the wire 3. As shown in FIG. The guide portion 4 may expand to cover the distal end face 21. Thereafter, the practitioner can intubate the tube from the guiding portion (4) expanded to cover the distal end surface (21). In this case, as shown in FIG. 6, the guiding portion 4 supports the tube during the intubation of the tube so that the distal end surface 21 is separated from the tube.

Accordingly, the medical catheter 1 according to the present invention is implemented such that the distal end surface 21 is not in direct contact with the tube during the intubation of the tube. Therefore, the medical catheter 1 according to the present invention not only alleviates the suffering of the patient caused by friction or collision of the distal end surface 21 with the tube, but also prevents the occurrence of a wound on the tube, It can contribute to prevention of infection caused by bacteria and the like.

When the intubating section 2 is fully inserted into the tube for the purpose of securing airway and injecting medicine, the operator can drain the fluid that has flowed into the guide section 4 through the fluid passage 32. Accordingly, the guide portion 4 can be contracted to have a smaller size as compared with the movement passage 23. Thereafter, the operator moves the wire 3 and the guide 4 in the backward direction (in the direction of the BD arrow) opposite to the front (in the arrow direction of the FD) by moving the wire 3 and the guide 4, So that it can be removed from the portion 2.

As the fluid flows through the fluid passage (32), the guide portion (4) can expand in size as it extends forward (in the arrow direction of the FD). Therefore, the guiding portion 4, which has expanded as the fluid flows in, can be intubated into the tube from a small-sized portion.

Accordingly, the medical catheter 1 according to the present invention is configured such that the tube can be gradually expanded along the induction unit 4 while the guide unit 4 is being inserted into the tube. Therefore, the medical catheter 1 according to the present invention prevents intubation of the guiding portion 4 from the large-sized portion of the guiding portion 4, so that the patient suffering from the rapid expansion of the tube and the rupture of the tube It is possible to further reduce the possibility.

The guide portion 4 may expand such that one side of the guide portion 4 that expands to cover the distal end surface 21 has a larger diameter than the outside diameter. The guide portion 4 may expand such that the other side opposite to the one side has a smaller diameter than the distal end surface 21. The guide portion 4 may be formed of a stretchable material so as to expand as the fluid flows. For example, the guide portion 4 may be formed of a material such as rubber. The guide portion 4 may be arranged to be positioned forward (in the arrow direction of the FD) with respect to the wire 3.

6 to 8, the guiding portion 4 may include a guiding surface 41.

The guide surface 41 is a surface for guiding the intubation section 2 to be intubated. The guide surface 41 may correspond to a surface contacting the tube in the process of intubating the guide 4 with the tube. The guide surface 41 can support the tube. When the guide portion 4 is moved forward (in the arrow direction of the FD) while the guide portion 4 is aligned with the inlet of the tube, the guide surface 41 supports the tube 2, May be guided through the tube.

Accordingly, the medical catheter 1 according to the present invention is designed to support a larger area of the tube through the guide surface 41 during the intubation of the tube, thereby further reducing the degree of friction of the tube .

The guide surface 41 may be formed of a material having a smaller coefficient of friction than the tip end surface 21. Accordingly, the medical catheter 1 according to the present invention is implemented so as to further reduce the degree to which the tube rubs during the intubation process, compared to when the tube is inserted into the tube from the distal end surface 21. Accordingly, the medical catheter 1 according to the present invention not only alleviates the suffering of the patient caused by friction or collision of the distal end surface 21 with the tube, but also prevents the occurrence of a wound on the tube, Bacteria, and the like.

Referring to FIGS. 7 and 8, the guide portion 4 may include a first guide member 42.

The first guide member 42 expands so as to cover the entire surface of the distal end surface 21 as fluid flows in. The first guiding member 42 can cover the front surface of the distal end surface 21 by expanding to a larger diameter than the distal end surface 21 as the fluid is introduced. The first inducing member 42 may be coupled to the wire 3. The first inducing member 42 may be positioned forward (in the arrow direction of the FD) with respect to the wire 3. The first induction member 42 may be formed of a stretchable material so as to be inflated as the fluid is introduced. For example, the first guide member 42 may be formed of a material such as rubber.

Referring to FIGS. 7 and 8, the guide 4 may include a second guide member 43.

The second guide member 43 is coupled to the first guide member 42. The second guide member 43 may be positioned forward (in the direction of the arrow FD) with respect to the first guide member 42. The second guide member 43 can expand as the fluid flows in. The second guide member 43 and the first guide member 42 may be integrally formed. The induction surface 41 may be formed on the second induction member 43 and the first induction member 42. The second induction member 43 may be formed of a stretchable material so as to be inflated as the fluid is introduced. For example, the second guide member 43 may be formed of a material such as rubber.

The second guide member 43 may be first in contact with the tube relative to the first guide member 42 during the intubation of the medical catheter 1 according to the present invention. The second guiding member 43 moves in the forward direction (the direction of the arrow FD) while being in contact with the tube, so that the second guiding member 43 can be intubated while expanding the tube.

The second guide member 43 can expand in size as it extends forward (in the arrow direction of the FD) as the fluid flows in. Therefore, the second guide member 43, which has expanded as the fluid flows in, can be introduced into the tube from a small-sized portion.

Accordingly, in the medical catheter 1 according to the present invention, in the course of intubation of the second guiding member 43 into the tube, the tube can be gradually expanded along the second guiding member 43 . Therefore, the medical catheter 1 according to the present invention prevents the user from intubating the large-sized portion of the second guiding member 43 from the large-sized portion of the second guiding member 43, It is possible to further reduce the possibility of tube rupture.

The second guide member 43 may be formed of a material having greater rigidity than the first guide member 42. The stiffness may correspond to the ratio of the external force to the unit elongation of the material. The second guide member 43 has a greater rigidity than the first guide member 42 because the second guide member 43 has an external force equal to the external force applied to the first guide member 42 The degree of deformation of the second guide member 43 relative to the first guide member 42 is small.

In the medical catheter 1 according to the present invention, when the fluid is introduced, the second guiding member 43 and the second guiding member 43 are inflated while the first guiding member 42 and the second guiding member 43 are inflated. And is inflated to a size smaller than that of the first guide member (42). Therefore, the medical catheter 1 according to the present invention is embodied so as to be introduced into the tube from the second guiding member 43, which is inflated to a relatively small size as compared with the first guiding member 42, And can be intubated.

The second guide member 43 may be formed to have a greater thickness than the first guide member 42. In the medical catheter 1 according to the present invention, when the fluid is introduced, the second guiding member 43 and the second guiding member 43 are inflated while the first guiding member 42 and the second guiding member 43 are inflated. And is inflated to a size smaller than that of the first guide member (42). Therefore, the medical catheter 1 according to the present invention is embodied so as to be introduced into the tube from the second guiding member 43, which is inflated to a relatively small size as compared with the first guiding member 42, And can be intubated.

Referring to FIG. 8, the guide 4 may include a reinforcing member 44.

The reinforcing member 44 is coupled to the second guide member 43. The reinforcing member 44 can support the second guide member 43 during the inflation of the second guide member 43 as the fluid flows. The reinforcing member 44 can support the second guide member 43 so that the second guide member 42 expands to be smaller in size as it extends forward (in the arrow direction of the FD).

Accordingly, the medical catheter 1 according to the present invention can be configured such that the reinforcing member 44 can be made of a material having the same thickness as that of the first guiding member 42 and the second guiding member 43, So that the second guide member 43 can be inflated so as to be smaller in size as it extends forward (in the arrow direction of the FD).

The reinforcing member 44 can be coupled to the second guide member 43 in the forward direction (arrow direction of the FD) with respect to the second guide member 43. [ The reinforcing member 44 may be detachably coupled to the second guide member 43. The reinforcing member 44 may be formed of a material having greater stiffness than the second guiding member 43. For example, the reinforcing member 44 may be formed of a metal or the like. The reinforcing member 44 may restrict the degree of expansion of the second guide member 43 in the course of the expansion of the second guide member 43 as the fluid flows. The reinforcing member 44 may be formed of a material having a smaller coefficient of friction than the second guiding member 43.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. Will be clear to those who have knowledge of.

1: medical catheter 2:
3: wire 4:
21: distal end surface 22:
23: moving passage 31: wire body
32: fluid passage 41: guiding surface
42: first induction member 43: second induction member
44: reinforcing member

Claims (9)

An intubating section for intubation;
A wire for providing a compressive force to the intubating section so that the intubating section is maintained in a deformed shape; And
And an induction portion coupled to the wire,
Wherein the intubating section includes a tip end face disposed at a tip end,
Wherein the wire includes a fluid passage through which fluid for inflating the guide portion flows,
Wherein the guide portion is expanded to flow as fluid flows through the fluid passage and is coupled to the wire so as to cover the distal end surface. The method according to claim 1,
Wherein the guide portion includes a first guide member that expands to cover the entire surface of the front end surface as the fluid flows in and a second guide member that is coupled to the first guide member so as to be positioned forwardly of the first guide member, Wherein the catheter comprises a catheter. 3. The method of claim 2,
Wherein the second guide member expands so as to be smaller in size as it extends forward as the fluid is introduced. 3. The method of claim 2,
Wherein the second guide member is formed to have a greater thickness than the first guide member. 3. The method of claim 2,
Wherein the second guide member is formed of a material having greater rigidity than the first guide member. 3. The method of claim 2,
Wherein the guiding portion includes a reinforcing member coupled to the second guiding member so that the second guiding member is inflated so that the second guiding member becomes smaller in size as it extends forward. The method according to claim 1,
Wherein the intubating section includes an intubating member having the distal end surface formed therein,
Wherein the catheter member is formed to be smaller in size as it extends toward the distal end. The method according to claim 1,
Wherein the guide portion includes a guide surface for guiding the intubation portion to be intubated,
Wherein the guide surface is formed of a material having a friction coefficient smaller than that of the distal end surface. A wire for providing a bending force to the intubating section so that an intubating section for intubating is maintained in a deformed shape; And
And an induction portion coupled to the wire,
Wherein the intubating section includes a tip end face disposed at a tip end,
Wherein the wire includes a fluid passage through which fluid for inflating the guide portion flows,
Wherein the guiding portion is inflated so as to cover the distal end surface of the guiding portion as the fluid flows through the fluid passage, and the guiding portion is inflated so as to be smaller in size as the guiding portion is forwardly inserted.

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