WO2024025198A1 - Cathéter - Google Patents

Cathéter Download PDF

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Publication number
WO2024025198A1
WO2024025198A1 PCT/KR2023/009598 KR2023009598W WO2024025198A1 WO 2024025198 A1 WO2024025198 A1 WO 2024025198A1 KR 2023009598 W KR2023009598 W KR 2023009598W WO 2024025198 A1 WO2024025198 A1 WO 2024025198A1
Authority
WO
WIPO (PCT)
Prior art keywords
adjustment dial
catheter
gear
button
elastic member
Prior art date
Application number
PCT/KR2023/009598
Other languages
English (en)
Korean (ko)
Inventor
주돈수
이병주
장성희
Original Assignee
아이메디컴(주)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 아이메디컴(주) filed Critical 아이메디컴(주)
Publication of WO2024025198A1 publication Critical patent/WO2024025198A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/0105—Steering means as part of the catheter or advancing means; Markers for positioning
    • A61M25/0133—Tip steering devices
    • A61M25/0147—Tip steering devices with movable mechanical means, e.g. pull wires
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/0105—Steering means as part of the catheter or advancing means; Markers for positioning
    • A61M25/0133—Tip steering devices
    • A61M25/0136—Handles therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/0105—Steering means as part of the catheter or advancing means; Markers for positioning
    • A61M25/0133—Tip steering devices
    • A61M25/0147—Tip steering devices with movable mechanical means, e.g. pull wires
    • A61M2025/015—Details of the distal fixation of the movable mechanical means

Definitions

  • the present invention relates to a catheter, and more specifically, to a catheter that can be inserted into the inside of a human body, etc. to adjust a tube (lumen shaft).
  • a catheter is a medical device that is inserted into the human body and used for various purposes such as injection of medicine or cleaning fluid.
  • Figure 15 shows a catheter disclosed in Korean Patent No. 1221484 applied for and registered by the present applicant, the distal end of which can be adjusted left and right.
  • Figure 15 corresponds to Figure 2 of the Korean registered patent.
  • the reference numbers used in the Korean registered patent are used without modification, and these reference numbers are used in the description of the present invention described later. Even if it overlaps with the reference numbers used in , it does not refer to the same component.
  • the catheter had a problem in that the operator had to hold the control dial 13 to fix the tube 2 in a bent state.
  • the present invention is intended to solve the problems of the prior art as described above, and the purpose of the present invention is to provide a catheter that allows the user to easily fix or unfix the bent state of the catheter tube in an on-off manner.
  • a catheter according to an embodiment of the present invention has an upper handle, an annular protrusion with a first gear portion on the inner circumference, a lower handle coupled to the upper handle, the upper handle, and the An adjustment dial mounted on the inside of the lower handle and rotatable relative to the upper handle and the lower handle about a predetermined virtual axis, movable relative to the adjustment dial in a radial direction of the adjustment dial,
  • the second gear unit which can be selectively coupled to the first gear unit, includes a button unit having an arcuate portion formed around the outer circumference, and an elastic member that always applies a restoring force to the radial outer side of the adjustment dial to the button unit.
  • the adjustment dial includes an arc-shaped peripheral wall on which a slit is formed
  • the button portion further includes a button body portion that is connected to the arc portion and penetrates the slit, and the arc portion and the button portion body portion include the annular protrusion. It is characterized in that it forms a groove through which passes.
  • first gear unit and the second gear unit are gear-coupled with each other due to the restoring force of the elastic member.
  • the button body portion is provided with a locking protrusion, and when the first gear portion and the second gear portion are gear-coupled with each other, the locking protrusion is characterized in that it contacts the inner wall of the arc-shaped peripheral wall.
  • the elastic member is characterized in that one end is supported by the button part and the other end is supported by the adjustment dial.
  • the elastic member is a leaf spring, one end of which is supported on the bottom surface of the circular arc portion, and the other end of which is fixed to the protrusion of the adjustment dial.
  • the elastic member is a torsion spring, one end of which is supported on the bottom of the circular arc, the other end of which is supported on the protrusion of the adjustment dial, and the inner diameter part is supported on the wire fixing part of the adjustment dial.
  • the elastic member extends on both sides in a direction away from the button body portion and is supported by a locking protrusion located on the inside of the adjustment dial to generate the restoring force.
  • connection portion of the elastic member connected to the button portion body is characterized in that it contacts the inner wall of the arc-shaped protrusion.
  • the upper handle is formed with a through hole
  • the adjustment dial is provided with a cylindrical protrusion
  • the cylindrical protrusion is inserted into the through hole, so that the adjustment dial is seated on the upper handle, and the virtual axis passes through the through hole. It is characterized in that it corresponds to the central axis of the hole.
  • the catheter according to an embodiment of the present invention having the above-described configuration has the following effects.
  • the fixation of the lower handle and button is released, and when the operator does not press the button, the lower handle and button are fixed by an elastic member. After steering the tube (lumen shaft) of the catheter, it is bent at a predetermined angle. It can be maintained simply and conveniently, improving the freedom of the operator's hands.
  • the present invention also includes other effects that are not explicitly described but can be expected from the above-described configuration.
  • FIG. 1 is a schematic diagram of a catheter according to an embodiment of the present invention.
  • Figure 2 shows the main configuration of the upper and lower handles of the catheter of Figure 1.
  • Figure 3 shows an adjustment dial and an elastic member mounted on the upper handle of Figure 2.
  • Figure 4 shows the adjustment dial of the catheter of Figure 1.
  • Figure 5 shows a button portion of the catheter of Figure 1.
  • FIG. 6 shows the coupling relationship between the adjustment dial, the button portion, and the elastic member in the catheter of FIG. 1.
  • Figure 7 shows a leaf spring used as an elastic member in the catheter of Figure 1.
  • Figure 8 shows a torsion spring used as an elastic member in the catheter of Figure 1.
  • Figure 9 shows the elastic member connected to the button part in the catheter of Figure 1.
  • Figure 10 is a perspective view of the elastic member of Figure 9.
  • FIG. 11 is a view of FIG. 9 viewed from another direction.
  • FIG. 12 is a diagram explaining the operation of the catheter of FIG. 1.
  • Figures 13 and 14 are another diagram explaining the operation of the catheter of Figure 1.
  • Figure 15 shows the configuration of a conventional catheter.
  • Figure 3 shows a catheter according to one embodiment of the present invention.
  • the present invention is an invention that fixes or unfixes the adjustment dial in the catheter disclosed in Korean Patent No. 1221484 of the present applicant with one touch.
  • the configuration of the wire for controlling the bending of the tube (lumen shaft) is known, and the present invention Since it is irrelevant to the main point, its explanation is omitted in order not to obscure the point.
  • the catheter according to one embodiment of the present invention (hereinafter referred to as 'this catheter') includes an upper handle (1), a lower handle (2), an adjustment dial (3), a button portion (4), and an elastic member (5). Includes.
  • an adjustment dial 3 is mounted on the upper handle 1.
  • a through hole 11 into which the cylindrical protrusion 35 of the adjustment dial 3, which will be described later, is inserted may be formed.
  • the lower handle 2 has an annular protrusion 21 with a first gear portion 211 on its inner circumference, and is coupled to the upper handle 1.
  • the first gear unit 211 is formed with alternating peaks and valleys (see FIG. 12).
  • the adjustment dial 3 is mounted on the inside of the upper handle 1 and the lower handle 2, and moves along a predetermined virtual axis A, that is, the adjustment dial 3. It can be rotated relative to the upper handle (1) and the lower handle (2) about the axis (A) that passes vertically through the through hole (11).
  • the adjustment dial 3 includes an arc-shaped peripheral wall 31 in which a slit 311 is formed.
  • the button portion 4 is movable relative to the adjustment dial 3 in the radial direction B of the adjustment dial 3, as shown in FIGS. 5 to 7, etc. And the button portion 4 has an arc portion 41 formed on the outer circumference of a second gear portion 411 that can be selectively coupled to the first gear portion 211 of the lower handle 2.
  • the second gear unit 411 like the first gear unit, is formed with alternating peaks and valleys. And the first gear part 211 of the lower handle 2 and the second gear part 411 of the button part 4 are arranged to face each other (see FIG. 12).
  • the button portion 4 further includes a button body portion 42 that extends to the circular arc portion 41 and penetrates the slit 311.
  • the circular arc portion 411 and the button body portion 42 form a groove portion 43 through which the annular protrusion 21 of the lower handle 2 passes.
  • the button body portion 42 is provided with a locking protrusion 421, and the first gear portion 211 of the lower handle 2 and the second gear portion 411 of the button portion 4 are geared to each other.
  • the locking protrusion 421 contacts the inner wall of the arc-shaped peripheral wall 31 of the adjustment dial 3, and the button portion 4 moves outward in the radial direction of the adjustment dial 3 due to the elastic member 5. It can prevent being pushed around.
  • gear coupling in this specification refers to the coupling of the ridge of the second gear unit to the groove of the first gear unit, and the coupling of the ridge of the first gear unit to the valley of the second gear unit.
  • the elastic member 5 always generates a restoring force F1 in the button portion 4 in the radial direction outward of the adjustment dial 3.
  • F1 the first gear part 211 of the lower handle 2 and the second gear part 411 of the button part 4 can be gear-coupled with each other.
  • one end of the elastic member 5 may be supported by the button portion 4, and the other end may be supported by the adjustment dial 3 (see FIG. 7).
  • the elastic member 5 is a leaf spring, one end of which is supported by the bottom of the arcuate portion 41 of the button portion 4, and the other end of which is supported by the protrusion of the adjustment dial 3. It can be fixed at (32).
  • the elastic member 5 is a torsion spring, one end of which is supported by the bottom of the circular arc portion 41 of the button portion 4, and the other end of which is supported by the protrusion 32 of the adjustment dial 3. ) can be supported. And the inner diameter portion 53 of the torsion spring may be supported on the wire fixing portion 33 of the adjustment dial 3.
  • the elastic members 5 extend on both sides in a direction away from the button body portion 42, respectively. And these elastic members (5) are supported by the locking protrusion (34) located on the inside of the adjustment dial (3), and always provide a restoring force (F1) to the button portion (4) in the radial direction outward of the adjustment dial (3). generates
  • the elastic member 5 is made of a material that has elasticity and can be bent.
  • connection portion 54 of the elastic member 5 connected to the button body portion 42 contacts the inner wall of the arc-shaped protrusion 31.
  • the first gear portion 211 of the lower handle 2 and the second gear portion 411 of the button portion 4 are shown in a gear-coupled state.
  • the adjustment dial 3 is fixed to the button portion 4 and the tube (lumen shaft) is maintained in a predetermined state.
  • the adjustment dial 3 can be rotated to the desired angle.
  • the present invention can be applied to catheters corresponding to medical devices.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biophysics (AREA)
  • Pulmonology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Mechanical Engineering (AREA)
  • Media Introduction/Drainage Providing Device (AREA)

Abstract

Un cathéter de la présente invention comprend : une poignée supérieure ; une poignée inférieure pourvue d'une partie saillante annulaire ayant une première partie engrenage disposée sur la périphérie interne de celle-ci, la poignée inférieure étant couplée à la poignée supérieure ; un cadran de réglage monté à l'intérieur de la poignée supérieure et de la poignée inférieure et relativement rotatif par rapport à la poignée supérieure et à la poignée inférieure autour d'un axe virtuel prédéterminé ; une partie bouton relativement mobile par rapport au cadran de réglage dans la direction radiale du cadran de réglage et pourvue d'une partie arc ayant une seconde partie engrenage qui est formée sur la périphérie externe de celle-ci et peut être sélectivement couplée à la première partie engrenage ; et un élément élastique qui applique toujours une force de restauration à la partie bouton dans la direction radialement vers l'extérieur du cadran de réglage.
PCT/KR2023/009598 2022-07-26 2023-07-06 Cathéter WO2024025198A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2022-0092585 2022-07-26
KR1020220092585A KR20240014881A (ko) 2022-07-26 2022-07-26 카테터

Publications (1)

Publication Number Publication Date
WO2024025198A1 true WO2024025198A1 (fr) 2024-02-01

Family

ID=89706772

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2023/009598 WO2024025198A1 (fr) 2022-07-26 2023-07-06 Cathéter

Country Status (2)

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KR (1) KR20240014881A (fr)
WO (1) WO2024025198A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100936051B1 (ko) * 2009-05-07 2010-01-08 한창기전 주식회사 범용 카테터
KR101221484B1 (ko) * 2012-04-06 2013-01-14 아이메디컴(주) 카테터
KR20160021959A (ko) * 2014-08-18 2016-02-29 (주)세원메디텍 멀티벌룬카테터 및 이를 갖는 카테터장치
KR20190121555A (ko) * 2018-04-18 2019-10-28 인제대학교 산학협력단 자동 잠김 피그테일 카테터 장치
KR20220069168A (ko) * 2020-11-19 2022-05-27 주식회사 제노스 카테터 장치

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100936051B1 (ko) * 2009-05-07 2010-01-08 한창기전 주식회사 범용 카테터
KR101221484B1 (ko) * 2012-04-06 2013-01-14 아이메디컴(주) 카테터
KR20160021959A (ko) * 2014-08-18 2016-02-29 (주)세원메디텍 멀티벌룬카테터 및 이를 갖는 카테터장치
KR20190121555A (ko) * 2018-04-18 2019-10-28 인제대학교 산학협력단 자동 잠김 피그테일 카테터 장치
KR20220069168A (ko) * 2020-11-19 2022-05-27 주식회사 제노스 카테터 장치

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KR20240014881A (ko) 2024-02-02

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