Fixing device for joint of catheter and connecting pipe
By designing a fixing device with snap-connected connection of C-shaped plastic inner shell, the problem of inadequate fixation of catheters and connecting tubes in the intensive care unit is solved, and the stable connection of multiple types of catheters is achieved, reducing the risk of unplanned extubation.
Patent Information
- Application Number
- CN202421374488.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-17
- Publication Date
- 2025-08-12
- Estimated Expiration
- 2034-06-17
AI Technical Summary
The existing catheter connection fixation devices cannot adapt to various types of catheters and connection tubes in the intensive care unit, resulting in frequent unplanned extubation and inability to effectively fix them.
A fixing device including a plastic inner shell and an outer shell is designed, both of which are in a C-shaped cross-section, and a removable sleeve fixation is achieved through snap-on connection components and a limiting structure to accommodate conduits and connecting pipes of different diameters and lengths.
It realizes flexible fixation of various types of catheters and connecting tubes, avoids unplanned extubation, improves the safety and stability of treatment, and is cheap and simple in process.
Smart Images
Figure CN223208818U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of medical instruments, in particular to a fixing device for a connection between a catheter and a connecting pipe. Background Art
[0002] The pediatric intensive care unit (ICU) is a hospital unit dedicated to the centralized treatment and monitoring of critically ill children. These children are generally seriously ill and require various catheters during their care. Unplanned extubation is common during ICU treatment and is a key criterion for national nursing quality monitoring. Proper catheter securement is a key means of preventing unplanned extubation and a crucial component of nursing care. The most common form of oxygen therapy is oxygen inhalation therapy, which involves administering a gas with a higher oxygen concentration than air to increase oxygen saturation and arterial oxygen partial pressure, thereby increasing arterial oxygen content, correcting various causes of hypoxia, promoting tissue metabolism, and maintaining vital functions. It is a fundamental treatment for various causes of hypoxia. The most commonly used nursing techniques for oxygen therapy are nasal cannula and oxygen mask oxygenation. However, existing catheter connectors have limited size and retractability, preventing them from dislodging and securing only one type of catheter, failing to secure all types of catheters in the ICU. In clinical use, these devices rely solely on friction between the threads of the catheter and the connector, making them prone to dislodging during use.
[0003] Therefore, it is very necessary to provide a fixing device suitable for fixing the connecting tube interface of the oxygen inhalation tube, the resuscitation bag connecting tube interface, the negative pressure drain connecting tube interface, the chest drainage tube connecting tube interface and the like. Utility Model Content
[0004] In view of the above shortcomings of the prior art, the purpose of the present invention is to provide a fixing device for the connection between a catheter and a connecting tube, which is used to solve the diameter and telescopic function limitations of the fixing device in the prior art. It can only fix the connection between one type of catheter and the connecting tube, and cannot solve the problem of accidental extubation when fixing various types of catheters in the intensive care unit.
[0005] To achieve the above-mentioned and other related purposes, the present invention provides a fixing device for the connection between a catheter and a connecting pipe, the fixing device comprising a plastic inner shell and a plastic outer shell; the cross-sections of the plastic inner shell and the plastic outer shell are both C-shaped; the plastic inner shell and the plastic outer shell are detachably connected to be assembled into a circumferentially closed sleeve.
[0006] Preferably, the detachable connection is a snap connection or a threaded connection.
[0007] Preferably, one end of the plastic outer shell and / or the plastic inner shell is provided with a first limiting structure for fixing the connecting pipe.
[0008] More preferably, the first limiting structure is an extension portion formed at one end of the plastic outer shell and / or the plastic inner shell and extending along the axial direction.
[0009] Preferably, the other end of the plastic outer shell and / or the plastic inner shell is provided with a second limiting structure for fixing the conduit.
[0010] More preferably, the second limiting structure is an extension portion formed at the other end of the plastic outer shell and / or the plastic inner shell and extending along the axial direction.
[0011] Preferably, the fixing device also includes a circumferentially adjustable snap connection assembly, which includes a plurality of first cantilevered snaps provided on the axial edge of the plastic outer shell and a plurality of first slots provided on the plastic inner shell; the first cantilevered snaps are matched with the first slots.
[0012] More preferably, the number of the first cantilever buckles is greater than or equal to 2, for example, the number of the first cantilever buckles may be 2, 3, 4, 5, 6, 7, 8, 9, or 10.
[0013] More preferably, a plurality of the first slots are distributed on the plastic inner shell at intervals in the circumferential direction.
[0014] Further preferably, a single first card slot is a strip-shaped groove extending from one end to the other end of the plastic inner shell, and a plurality of first card slots form parallel distributed strip-shaped grooves on the surface of the plastic inner shell.
[0015] Preferably, the fixing device also includes an axially adjustable snap connection assembly, which includes a plurality of second cantilevered snaps provided at one end of the plastic outer shell and a plurality of second slots provided on the plastic inner shell; the second cantilevered snaps are matched and snapped with the second slots.
[0016] More preferably, a plurality of the second slots are distributed at intervals along a direction parallel to the axial direction on the plastic inner shell.
[0017] Further preferably, the plurality of second slots are toothed belt structures, the outer surface of the plastic inner shell is formed with a plurality of toothed belt structures parallel to each other, and any of the toothed belt structures extends from one end to the other end of the outer surface of the plastic inner shell.
[0018] More preferably, the plastic shell is provided with a hollow, and a plurality of third cantilevered buckles are provided on the edge of the plastic shell corresponding to the hollow, and the third cantilevered buckles are matched and engaged with the second clamping slots.
[0019] As described above, the catheter fixing device of the present invention has the following beneficial effects:
[0020] 1. The fixing device can flexibly adjust its diameter and length through the cooperation between the axial adjustment snap connection assembly, the circumferential adjustment snap connection assembly, the first limiting structure and the second limiting structure, thereby being suitable for the fixation and connection of various types of catheters and connecting pipe joints.
[0021] 2. The fixing device is firm and flexible and convenient to adjust, has low production cost, simple process, has broad market prospects, and is expected to bring certain economic and social benefits. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 It shows a schematic diagram of the overall structure of the utility model in one direction.
[0023] Figure 2 It shows a schematic diagram of the overall structure of the utility model in another direction.
[0024] Figure 3 Shown is a schematic diagram of the plastic shell structure of the utility model in one direction.
[0025] Figure 4 Schematic diagram showing the plastic shell structure of the utility model from another direction
[0026] Figure 5 Shown is a schematic diagram of the plastic inner shell structure of the present utility model.
[0027] Explanation of Figure Numbers
[0028] 1 Plastic inner shell
[0029] 11 Hollow
[0030] 12 First cantilever buckle
[0031] 13 Second cantilever buckle
[0032] 14 Third cantilever buckle
[0033] 15. First limit structure
[0034] 2 Plastic housing
[0035] 21 First card slot
[0036] 22 Second card slot
[0037] 23 Second limit structure DETAILED DESCRIPTION
[0038] The following describes the implementation of the present invention through specific embodiments. People familiar with this technology can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.
[0039] See also Figures 1 to 5 . It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of this utility model. Therefore, they have no substantive technical significance. Any modification of the structure, change in the proportional relationship or adjustment of the size should still fall within the scope of the technical content disclosed by this utility model without affecting the efficacy and purpose that can be achieved by this utility model. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of this utility model. Changes or adjustments to their relative relationships should also be regarded as the scope of the implementation of this utility model without substantial changes in the technical content.
[0040] like Figures 1-2 As shown, the utility model provides a fixing device for the connection between a catheter and a connecting tube, the fixing device comprising a plastic outer shell 1 and a plastic inner shell 2; the cross-sections of the plastic outer shell 1 and the plastic inner shell 2 are both C-shaped; the plastic outer shell 1 and the plastic inner shell 2 are detachably connected to form a circumferentially closed sleeve. The fixing device is suitable for the connection tube interface of an oxygen inhalation tube, the connection tube interface of a resuscitation bag, the connection tube interface of a negative pressure drain device, and the connection tube interface of a chest drainage tube. This facilitates the unplanned insertion and removal of various reserved catheters during the treatment of critically ill patients. After unplanned intubation, the fixing device is used to fix the interface to prevent the catheter from falling off. Specifically, the fixing includes first wrapping the plastic inner shell 2 around the interface, then wrapping the plastic outer shell 1 around the outside of the plastic inner shell 2 and snapping it in place. During unplanned extubation, the fixing device can also be easily opened by tearing or rotating the plastic outer shell to open the connection between the plastic inner shell 2 and the plastic outer shell 1, and then the plastic outer shell 1 and the plastic inner shell 2 are removed in sequence to eliminate the fixation for easy extubation.
[0041] In a specific embodiment, the plastic outer shell 1 and / or the plastic inner shell 2 are provided with a hollow 11. Figure 3 In the specific embodiment shown, the hollow 11 is located on the plastic housing 1 .
[0042] Considering that the catheter is easily pulled and falls off from the connecting tube during treatment, the treatment effect and the safety of the patient cannot be guaranteed. In a specific embodiment, one end of the plastic outer shell 1 and / or the plastic inner shell 2 is provided with a first limiting structure 15 for fixing the catheter. Figure 4 In the specific embodiment shown, the first limiting structure 15 is located at one end of the plastic shell 1. Figure 4 In the specific embodiment shown, the first limiting structure 15 is a C-shaped extension portion formed at one end of the plastic shell 1 and extending along the axial direction. The C-shaped extension portion limits the catheter to a hollow limiting space in the extension portion. When the catheter is pulled, the friction force of the C-shaped extension portion on the catheter avoids the problem of the catheter falling off due to accidental pulling, thereby increasing the firmness.
[0043] Considering that the connecting tube is easily pulled and separated from the catheter during treatment, causing the catheter to fall off, the treatment effect and the patient's safety cannot be guaranteed. In a specific embodiment, the other end of the plastic outer shell 1 and / or the plastic inner shell 2 is provided with a second limiting structure 23 for fixing the connecting tube. Figure 1 、 2 In the specific embodiment shown in FIG5 , the second limiting structure 23 is located at the other end of the plastic inner shell 2. Figure 1 、 2 In the specific embodiment shown in Figure 5, the second limiting structure 23 is a C-shaped extension portion formed at the other end of the plastic inner shell 2 and extending along the axial direction. The C-shaped extension portion limits the connecting pipe to the hollow limiting space of the extension portion. When the connecting pipe is pulled, the friction force of the C-shaped extension portion on the connecting pipe avoids the problem of the connecting pipe being accidentally pulled and separated from the catheter, thereby increasing the firmness.
[0044] In a Figure 1 and Figure 2 In the specific embodiment shown, the detachable connection is a snap connection or a threaded structure.
[0045] In a Figure 2 In the specific embodiment shown, the fixing device further includes a circumferentially adjustable snap-on connection assembly, which includes a plurality of first cantilevered snaps 12 provided on the axial edge of the plastic outer shell 1 and a plurality of first slots 21 provided on the plastic inner shell 2; the first cantilevered snaps 12 are matched and snapped into the first slots 21. In a more preferred embodiment, the number of the first cantilevered snaps 12 is greater than or equal to 2. For example, the number of the first cantilevered snaps 12 can be 2, 3, 4, 5, 6, 7, 8, 9, or 10. In a preferred embodiment, the number of the first cantilevered snaps 12 can be 2, 3, 4, 5, 6, 7, 8, 9, or 10. Figure 2 In the specific embodiment shown, the number of the first cantilever buckles is four.
[0046] In a specific embodiment, multiple first slots 21 are circumferentially spaced apart on the plastic inner shell 2. The first cantilevered clip 12 is configured to mate with the first slots 21 at different locations, thereby causing the diameter of the fixture to vary accordingly. Thus, the fixture of the present application can circumferentially adapt to the connection points of catheters and connecting pipes of various diameters.
[0047] The arrangement of the plurality of first card slots 21 can be carried out according to actual needs while satisfying the above limitations. Figure 2 In the specific embodiment shown, a single first card slot 21 is a strip-shaped groove extending from one end to the other end of the plastic inner shell 2 , and a plurality of first card slots 21 form parallel strip-shaped grooves on the surface of the plastic inner shell 2 .
[0048] In a Figure 1 In the specific embodiment shown, the fixing device further includes an axially adjustable snap-fit connection assembly, which includes a plurality of second cantilevered snap-fits 13 provided at the other end of the plastic outer shell 1 and a plurality of second slots 22 provided on the plastic inner shell 2; the second cantilevered snap-fits 13 are matched and snap-fitted with the second slots 22. In a more preferred embodiment, the number of the second cantilevered snap-fits 13 can be 1, 2, 3, 4, 5, 6, 7, 8, 9, or 10. In a specific embodiment, Figure 1 In the embodiment shown, the number of the second cantilevered buckle is one.
[0049] In a specific embodiment, Figure 1 As shown, the edge of the plastic shell corresponding to the hollow 11 is provided with a plurality of third cantilevered buckles 14, and the third cantilevered buckles 14 are engaged with the second slot 22. In a more preferred embodiment, the number of the third cantilevered buckles 13 can be 1, 2, 3, 4, 5, 6, 7, 8, 9, or 10. In a specific embodiment, Figure 1 In the illustrated embodiment, the number of the third cantilevered buckles is one.
[0050] In a specific Figure 2 and Figure 5 In the illustrated embodiment, multiple second engaging grooves 22 are spaced apart on the plastic inner shell along a direction parallel to the axial direction. Multiple second engaging grooves 22 are in a toothed belt-like structure. The outer surface of the plastic inner shell 2 is formed with a plurality of parallel toothed belt-like structures, each extending from one end of the outer surface of the plastic inner shell 2 to the other.
[0051] In a Figure 1In the specific embodiment shown, the second cantilevered clip 13 and the third cantilevered clip 14 are matched with different second clip grooves 22 to flexibly adjust the length of the fixing device and axially adapt to the connection between catheters and connecting pipes of various lengths.
[0052] In this embodiment, the material of the catheter fixing device is nylon, so as to facilitate processing and forming into an inner shell and an outer shell with C-shaped cross sections.
[0053] The fixing device in the present invention can flexibly adjust its diameter and length through the axial adjustment buckle connection component, the circumferential adjustment buckle connection component and the limiting structure, thereby being suitable for fixing and connecting the joints of various types of catheters and connecting pipes. The fixing device is firm and flexible and convenient to adjust, has low production cost and simple process, has broad market prospects, and is expected to bring certain economic and social benefits.
[0054] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by one of ordinary skill in the art without departing from the spirit and technical principles disclosed in the present invention are intended to be covered by the claims of the present invention.
Claims
1. A fixing device for the connection between a catheter and a connecting pipe, characterized in that: The fixing device comprises a plastic outer shell (1) and a plastic inner shell (2); The cross-sections of the plastic outer shell (1) and the plastic inner shell (2) are both C-shaped; The plastic outer shell (1) and the plastic inner shell (2) are detachably connected to form a circumferentially closed sleeve.
2. The fixing device according to claim 1, characterized in that The detachable connection is a snap connection or a threaded connection; and / or one end of the plastic outer shell (1) and / or the plastic inner shell (2) is provided with a first limiting structure (15) for fixing the connecting pipe; and / or the other end of the plastic outer shell (1) and / or the plastic inner shell (2) is provided with a second limiting structure (23) for fixing the conduit.
3. The fixing device according to claim 2, characterized in that The first limiting structure (15) is an extension portion formed at one end of the plastic outer shell (1) and / or the plastic inner shell (2) and extending in the axial direction; and / or the second limiting structure (23) is an extension portion formed at the other end of the plastic outer shell (1) and / or the plastic inner shell (2) and extending in the axial direction.
4. The fixing device according to claim 1, characterized in that The fixing device further comprises a circumferentially adjustable snap-fit connection assembly, the circumferentially adjustable snap-fit connection assembly comprising a plurality of first cantilevered snap-fits (12) provided on the axial edge of the plastic outer shell (1) and a plurality of first slots (21) provided on the plastic inner shell (2); the first cantilevered snap-fits (12) are matched and snap-fitted with the first slots (21).
5. The fixing device according to claim 4, characterized in that The number of the first cantilever buckles (12) is greater than or equal to 2; and / or the plurality of first clamping slots (21) are distributed on the plastic inner shell (2) at intervals in the circumferential direction.
6. The fixing device according to claim 5, characterized in that A single first card slot (21) is a strip-shaped groove and extends from one end to the other end of the plastic inner shell (2). A plurality of first card slots (21) form parallel distributed strip-shaped grooves on the surface of the plastic inner shell (2).
7. The fixing device according to claim 1, characterized in that The fixing device further comprises an axially adjustable snap-fit connection assembly, the axially adjustable snap-fit connection assembly comprising a plurality of second cantilevered snap-fits (13) provided at one end of the plastic outer shell (1) and a plurality of second slots (22) provided on the plastic inner shell (2); the second cantilevered snap-fits (13) are matched and snap-fitted with the second slots (22).
8. The fixing device according to claim 7, characterized in that A plurality of the second clamping grooves (22) are distributed at intervals on the plastic inner shell (2) along a direction parallel to the axial direction.
9. The fixing device according to claim 8, characterized in that The plurality of second slots (22) are in the form of toothed belt structures, and the outer surface of the plastic inner shell (2) is formed with a plurality of mutually parallel toothed belt structures, and any of the toothed belt structures extends from one end to the other end of the outer surface of the plastic inner shell (2).
10. The fixing device according to claim 7, characterized in that The plastic shell (1) is provided with a hollow (11), and the edge of the plastic shell corresponding to the hollow (11) is provided with a plurality of third cantilevered buckles (14), and the third cantilevered buckles (14) are matched and snap-connected with the second slot (22).