KR-102962523-B1 - A sterilization device for sterilizing a portion of a catheter tube and a method for sterilizing a portion of a catheter tube

KR102962523B1KR 102962523 B1KR102962523 B1KR 102962523B1KR-102962523-B1

Abstract

As a sterilization device for sterilizing a portion of a catheter tube, the sterilization device comprises: A casing comprising a proximal end, a distal end, an attachment, a sterilization chamber, and a through hole—the through hole passes through both the attachment and the sterilization chamber, the through hole has a distal opening in the distal end of the casing and the through hole extends toward the sterilization chamber, and the attachment is configured to hold a portion of a catheter tube inside the through hole—; and at least one light source configured to emit light having sterilizing power, such as ultraviolet light, into the sterilization chamber of the casing; wherein the diameter of the distal opening of the through hole is larger than the diameter of the through hole in the attachment of the casing, and thus, when the catheter tube is held inside the through hole by the attachment of the casing, a gap is formed between the catheter tube and the sterilization chamber in the distal opening.

Inventors

코펜, 캐스퍼 스톰
앤더슨, 마즈 오르백
할릴리, 안드림

Assignees

비오박 에이피에스

Dates

Publication Date: 20260508
Application Date: 20200403
Priority Date: 20190405

Claims (14)

As a sterilization device for sterilizing a portion of a catheter tube, the sterilization device comprises: A casing comprising a proximal end, a distal end, an attachment portion, a sterilization chamber, and a through hole - the through hole extends through both the attachment portion and the sterilization chamber, the through hole has a distal opening in the distal end of the casing, the through hole extends toward the sterilization chamber, and the attachment portion is configured to hold a portion of a catheter tube within the through hole - ; and At least one light source configured to emit light having sterilizing power, including ultraviolet rays, into the sterilization chamber of the casing; Includes, A sterilization device wherein the diameter of the distal opening of the through hole is larger than the diameter of the through hole at the attachment portion of the casing, and thereby, when the catheter tube is held within the through hole by the attachment portion of the casing, a gap is formed between the catheter tube and the sterilization chamber at the distal opening, so as to (i) prevent bacteria on the specific portion from being transferred from the outer surface of the catheter tube to the outer surface of the casing due to the gap between the catheter tube and the distal opening of the sterilization device when the specific portion of the catheter tube passes through the sterilization chamber before entering the attachment portion, and (ii) after the specific portion of the catheter tube passes through the attachment portion, the through hole and the specific portion of the catheter tube come into contact, so as to bring the outer surface of the catheter tube into contact with the casing.
In Article 1, A sterilization device in which at least one light source is positioned at a certain distance from the distal opening so that the sterilization chamber of the casing receives the light emitted directly from the at least one light source, or, if the catheter tube is present, the catheter tube located inside the through hole of the casing receives the light directly.
In Paragraph 1 or 2, A sterilization device comprising a sterilization chamber including a wall surface extending between the at least one light source and the distal opening, wherein the distal opening forms a boundary of the wall surface, and thereby a tubular gap is formed between the wall surface and the catheter tube when the catheter tube is positioned within the through hole, and the tubular gap extends from the distal opening to the sterilization chamber.
In Article 1, A sterilization device further comprising a centralizing member configured to place the catheter tube in the center within the sterilization chamber.
In Article 1, A sterilization device wherein the diameter of the distal opening is at least 1.1 times the diameter of the through hole at the attachment portion or the diameter of the catheter tube that may be located inside the through hole.
In Article 1, An open state in which the catheter tube can be attached to the casing by means of the attachment portion of the casing; and A closed state in which a portion of the catheter tube already present at the attachment portion of the casing can be maintained; Having any one of them, A sterilization device comprising a casing including two parts connected to each other by a hinge, wherein the hinge is set to the open state or the closed state.
In Paragraph 6, In the above open state, a radial access passage to the through hole is provided, thereby allowing a part of the catheter tube to be radially inserted into the through hole, and A sterilization device in which, in the above closed state, two parts of the casing surround the through hole, thereby allowing at least a portion of the catheter tube already present in the attachment part of the casing to be maintained radially.
In Article 6 or 7, The above sterilization device includes a control device and a detection device, The control device is configured to cause at least one light source to start emitting light with sterilizing power when the detection device detects that the casing is in the closed state, and A sterilization device configured such that the above control device stops the at least one light source from emitting sterilizing light when the detection device detects that the casing is in the open state.
In Article 1, A sterilization device in which the outer surface of the above casing has a streamlined, curved shape.
In Article 1, A sterilization device having a maximum axial length of the sterilization device from the root end to the root end, which is at least 1.1 times the maximum outer diameter of the sterilization device.
In Article 1, A sterilization device further comprising a proximal portion made of a soft and elastic material including foam rubber or silicone.
In Article 1, A sterilization device further comprising an antibacterial or antimicrobial coating on the apical portion of the casing or on the entire sterilization device.
In Article 1, A sterilization device that provides an ultraviolet reflection zone extending from the lip of the attachment part within the sterilization chamber to a centralizing member—the centralizing member is configured to place the catheter tube in the center within the sterilization chamber—and causes the ultraviolet reflection zone to reflect the ultraviolet rays generated from the light source, thereby causing the catheter tube extending through the sterilization chamber to be exposed to increased ultraviolet rays.
In a method for sterilizing a portion of a catheter tube, A step of providing the above catheter tube and the above sterilization device of claim 1; A step of positioning a portion of the catheter tube within the through hole of the sterilization device; and A step of sterilizing a portion of the catheter tube by causing at least one light source to emit light with sterilizing power over a portion of the catheter tube. A method characterized by including

Description

A sterilization device for sterilizing a portion of a catheter tube and a method for sterilizing a portion of a catheter tube The present invention relates to a sterilization device for sterilizing a portion of a catheter tube and a method for sterilizing a portion of a catheter tube. In various medical procedures, an artificial passage into the patient's body is sometimes required to supply or remove fluids, administer medication, or perform other tasks. To this end, the internal portion of a catheter is positioned inside the patient's body and inserted through an opening, while the external portion is located outside the patient's body. In some cases, this catheter is maintained inside the patient for an extended period; this allows bacteria to travel along the inside and/or outside of the external portion to the internal portion and enter the patient's body, posing a risk of infection. To prevent this, a sterilization device emitting ultraviolet light with a germicidal intensity can be connected to the catheter over the external portion, thereby sterilizing the catheter and preventing infection. A disadvantage of this method is that germicidal ultraviolet light can potentially cause cancer in the patient. Light shields surrounding ultraviolet light sources are frequently used to prevent excessive leakage of ultraviolet light, but it has been found that in some cases, bacteria move outside the light shield to avoid the sterilizing light, thereby reducing the sterilizing power of the device. Additionally, since patients need to change their position occasionally, the sterilization device can be placed underneath the patient, potentially causing bedsores or pressure ulcers. The above and other aspects, features, and advantages of the present invention will become more apparent from the following description, which is described in combination with the enclosed drawings. Figure 1 is a perspective view of a sterilization device attached to a part of a catheter tube. Fig. 2a is a side view of the sterilization device and catheter tube of Fig. 1. FIG. 2b is a side cross-sectional view of the sterilization device and catheter tube along the cross-sectional line BB of FIG. 2a. FIG. 2c is a side cross-sectional view of the sterilization device and catheter tube along the cross-sectional line AA of FIG. 2a. Fig. 3 is a perspective view of a sterilization device in an open state without a catheter tube. Fig. 4a is a side view of the sterilization device of Fig. 3. FIG. 4b is a cross-sectional view of the sterilization device along the cross-sectional line CC of FIG. 4a. FIG. 4c is a cross-sectional view of the sterilization device along the cross-sectional line DD of FIG. 4a. FIG. 5 corresponds to FIG. 1 but is another embodiment of the present invention. Fig. 6 corresponds to Fig. 3 but is an embodiment of Fig. 5. Fig. 7 is a diagram showing the sterilization device of Figs. 5 and 6 when used in a urinary catheter. Referring to FIGS. 1 and 2a, a sterilization device (1) is shown with a catheter tube (9) extending through it. The sterilization device (1) includes a casing (2) comprising a proximal end (2a), a distal end (2b), and an outer surface (28). The proximal end (2a) of the casing (2) is intended to face the patient, and the distal end (2b) of the casing is intended to face away from the patient. The outer surface (28) of the casing (2) faces the outside of the sterilization device (1) and has a streamlined, curved shape without sharp edges or corners from the proximal end (2a) to the distal end (2b) to prevent pressure ulcers from occurring if the sterilization device (1) is placed under the patient. The maximum axial length of the sterilization device (1) from the proximal end (2a) to the distal end (2b) is approximately 1.5 times the maximum outer diameter of the sterilization device (1). The casing (2) includes a through hole (24) having a circular proximal opening (24a) located at the proximal end (2a) of the casing (2) and a circular distal opening (24b) located at the distal end (2b) of the casing (2). The diameter of the distal end (24b) of the through hole (24) is larger than the outer diameter of the catheter tube (9), and thus a gap (3) is formed between the distal opening (24b) and the catheter tube (9) as shown in FIG. 1. Referring to FIG. 2b, the pipe axis (26) extends from the proximal end (2a) of the casing (2) to the proximal end (2b) of the casing (2). The pipe axis (26) of the casing (2) forms the centerline of the through hole (24). The through hole (24) has a circular cross-section perpendicular to the pipe axis (26) from the proximal opening (24b) at the proximal end (2b) of the casing (2) to the proximal opening (24a) at the proximal end (2a) of the through hole (24). The casing (2) includes an attachment portion (21), a sterilization chamber (22), and a through hole (24) that passes through both the attachment portion (21) and the sterilization chamber (22). The through hole (24) includ