An oxygen delivery conduit and humidification bottle connected thereto

Abstract

An oxygen delivery tube and a humidifying bottle connected therewith, comprising: an elongated hollow flexible tube body, a proximal end of the tube body is sealingly connected with a humidifying bottle connector, a distal end of the tube body is connectable with a nasal plug or a face mask, oxygen enters an internal space of the tube body from an internal space of the humidifying bottle connector which is sealed against the outside, and then flows out, characterized in that: the humidifying bottle connector is provided with anti-disengagement structures which are protruded and / or recessed from an outer surface of the humidifying bottle connector, so that when an inner surface of the humidifying bottle connector is sealingly connected with a hollow oxygen output rod of the humidifying bottle, the humidifying bottle connector is not easily disengaged by being pulled by the tube body.

Description

Technical Field

[0001] This invention relates to an oxygen delivery pipeline and a humidification bottle connected thereto, belonging to the field of medical device technology. Background Technology

[0002] Oxygen therapy is the most common clinical treatment. Dry medical oxygen needs to be connected to a humidification bottle and then delivered to the patient's mouth and nose through an oxygen delivery line. Existing oxygen delivery lines are all connected to a flexible humidification bottle connector, which is inserted and sealed to a hollow rigid oxygen output rod extending from the humidification bottle body. When the two are inserted and fitted, the flexible humidification bottle connector undergoes significant deformation, and the inner diameter expands to form an interference seal with the rigid oxygen output rod. Normal insertion and removal are significantly time-consuming and laborious, requiring about 120 Newtons of force and taking 3-10 seconds. In addition, the humidification bottle connector is relatively long, resulting in higher manufacturing costs. However, this "soft-plug-hard" connection is used in the industry.

[0003] This invention provides an oxygen delivery pipeline and a humidification bottle connected thereto. By changing the matching relationship between the humidification bottle connector and the oxygen output rod, the insertion operation is made easier under the premise of sealing, while the amount of material used in the humidification bottle connector is greatly reduced. Summary of the Invention

[0004] The objective of this invention is achieved as follows:

[0005] An oxygen delivery pipeline includes: a slender, hollow, flexible, and easily bendable tube and a humidification bottle connector. The proximal end of the tube is sealed to the humidification bottle connector, and the distal end of the tube can be connected to a nose plug or face mask. Oxygen enters the internal space of the tube through the externally sealed humidification bottle connector and then flows out. The humidification bottle connector is provided with an anti-detachment structure protruding and / or recessed on the outer surface of the humidification bottle connector, which prevents the humidification bottle connector from being pulled away by the tube when the inner surface of the humidification bottle connector is sealed to the hollow oxygen output rod.

[0006] Oxygen cannot enter the internal space of the tube after the humidifier bottle connector is detached; the outer surface of the humidifier bottle connector refers to the area that is not sealed to the oxygen output rod of the humidifier bottle; the anti-detachment structure protruding or recessed on the outer surface of the humidifier bottle connector will not increase the molding cost of the humidifier bottle connector.

[0007] Unlike existing technical solutions, the humidification bottle connector is made of rigid resin materials, including rigid PVC and ABS, which are not easily deformed during normal insertion.

[0008] An optimized size design shortens the length of the humidification bottle connector to between 10mm and 20mm, significantly reducing material usage and saving costs compared to the traditional length of 25mm to 40mm.

[0009] Furthermore, the length of the humidification bottle connector used for sealing with the oxygen output rod has been shortened to between 3mm and 10mm; compared with the traditional sealing length of 12mm-28mm, the amount of material used has been greatly reduced, resulting in significant cost savings.

[0010] The thin-walled design allows the humidification bottle connector to weigh between 0.4g and 1.0g, significantly reducing material usage compared to the traditional 1.8g-3.5g, thus saving considerable costs.

[0011] A novel functional design includes at least one secondary connector near the humidification bottle connector, with the internal space of the secondary connector connected to the internal space of the tube. When not in use, the secondary connector is closed and can be sealed externally by adding a sealing cap or inserting it into a rod on the humidification bottle that is not connected to oxygen. When in use, it can be connected to functional gases such as helium, hydrogen, and nitric oxide, and can also deliver water vapor to assist in the humidification of the human airway. It can also be used for the infusion of ethanol, isopropanol, etc., into the airway of patients with pulmonary edema to remove blood foam.

[0012] A humidification bottle connected to the aforementioned oxygen delivery pipeline includes a bottle body containing humidifying liquid, a hollow oxygen input rod connected to the bottle body, and a hollow oxygen output rod. At least the outer surface of the oxygen output rod is provided with a sealing body that seals against the inner surface of the humidification bottle connector of the oxygen delivery pipeline. The hardness of the sealing body is lower than the hardness of the inner surface of the humidification bottle connector, meaning that when they come into contact, the flexible sealing body deforms to achieve an interference seal. At least one locking body that can move within a localized area is provided. The pressing part of the locking body is used for finger operation to drive the locking body's displacement. The connecting part of the locking body acts on the anti-detachment structure of the outer surface of the humidification bottle connector, which can lock the humidification bottle connector in a locked state, preventing it from detaching when pulled by the pipeline. The sealing body protrudes from the outer surface of the oxygen output rod, ensuring that the inner surface of the humidification bottle connector only makes interference contact with the outer surface of the sealing body. It provides a linear or narrow strip-shaped circumferential seal with a small contact area, resulting in low friction during axial movement as indicated by the arrow, facilitating insertion and detachment.

[0013] To facilitate easy removal of the humidifier bottle connector, an elastic body is also included. The elastic body can be sleeved on the outside of the oxygen output rod, with its force-applying end abutting against the end face of the humidifier bottle connector. When the humidifier bottle connector is in the locked state, the elastic body deforms and stores elastic potential energy. After the locked state is released, it pushes the humidifier bottle connector away from the oxygen output rod. The fixed end of the elastic body is connected to the humidifier bottle, and the force-applying end can be the end face of a spring or a rigid part connected to the end face of the spring.

[0014] One alternative is that the locking body's connecting part acts on the outward extension of the humidification bottle connector end face.

[0015] To facilitate guided operation of the invention, it also includes a housing that houses all or most of the locking body, elastic body, and hollow oxygen output rod. The housing has a first opening that exposes the pressing part of the locking body and a second opening that exposes at least the sealing body on the hollow oxygen output rod. The exposure does not specifically refer to protrusion from the outer surface of the housing, but rather to the extent that the operator's fingers can reach it and the humidification bottle connector can be inserted.

[0016] The beneficial effects of this invention are:

[0017] 1. Under the premise of reliable sealing and stable connection between the humidification bottle connector and the oxygen output rod, minimize the total length of the humidification bottle connector to reduce costs.

[0018] 2. Under the premise of reliable sealing and stable connection between the humidification bottle connector and the oxygen output rod, the sealing fit length between the humidification bottle connector and the oxygen output rod is shortened to the greatest extent to reduce costs.

[0019] 3. Under the premise of reliable sealing and stable connection between the humidification bottle connector and the oxygen output rod, minimize the wall thickness of the humidification bottle connector to reduce costs.

[0020] 4. Significantly reduces the amount of force required for medical staff to insert the humidifier bottle connector into the oxygen output rod and shortens the operation time.

[0021] 5. Significantly reduces the force required for medical staff to pull the humidifier bottle connector off the oxygen output rod and shortens the operation time.

[0022] Breaking away from the century-old perception in the medical industry of a "soft-plug-hard" connection between the flexible humidification bottle connector and the rigid oxygen output rod of the humidification bottle, this new "hard-plug-soft" connection replaces the old one. Specifically, it refers to the connection and sealing between the rigid humidification bottle connector and the flexible sealing body on the rigid oxygen output rod, which greatly improves the quality of operation and increases efficiency. Attached Figure Description

[0023] The following figures are not limited to the present invention:

[0024] Figure 1A : A cross-sectional schematic diagram of the existing humidification bottle connector in the detached state;

[0025] Figure 1B : A cross-sectional schematic diagram of the existing humidification bottle connector connection status;

[0026] Figure 1C : A cross-sectional view of Example 1 (the humidification bottle connector is in the connected state);

[0027] Figure 1D : A cross-sectional schematic diagram of Example 1 (the humidification bottle connector is in the detached state);

[0028] Figure 1E Example 1: A partial cross-sectional three-dimensional schematic diagram from one perspective;

[0029] Figure 1F Example 1: A partial cross-sectional perspective view from another angle;

[0030] Figure 1G : Schematic cross-sectional view of the humidification bottle connector in Example 1;

[0031] Figure 1H : A three-dimensional schematic diagram of the humidification bottle connector in Example 1;

[0032] Figure 2A : A cross-sectional schematic diagram of Example 2;

[0033] Figure 2B : A three-dimensional schematic diagram of Example 2; Detailed Implementation

[0034] The embodiments of the present invention are not limited to the following:

[0035] Example 1:

[0036] Existing or traditional humidification bottle connector structures, such as Figure 1A As shown, a hollow oxygen output rod 31 extends from the humidification bottle body 32. The rigid oxygen output rod 31 has multiple rigid protruding rings 311 on its outer surface. The protruding rings 311 have a hook-shaped cross-section, hooking towards the bottle body 32. The oxygen output rod 31 is typically made of rigid resin materials such as ABS, PC, and PP, while the humidification bottle connector 2 is flexible, typically made of resin materials such as PVC, PU, ​​and EVA. For reliable finger grip, the length L0 of the humidification bottle connector 2 is typically between 25mm and 40mm, while the length L1 used for sealing with the oxygen output rod 31 is between 12mm and 28mm. The average wall thickness of the humidification bottle connector 2 is between 1.5mm and 2.5mm, and its weight is between 1.8g and 3.5g. Figure 1B As shown, when the humidifier bottle connector 2 is inserted into the oxygen output rod 31, the operator needs to hold the humidifier bottle connector 2 and push it in forcefully, and sometimes needs to rotate it continuously. The flexible humidifier bottle connector 2 undergoes significant deformation, the inner diameter expands, and the shape of the inner surface 21 of the humidifier bottle connector is sunken due to the pressure of the hard convex ring 311 on the outer surface of the oxygen output rod 31. The two are tightly connected and have an interference seal. Because the traditional mating structure integrates the sealing and the stability of the connection to prevent the humidifier bottle connector from falling off, the insertion and removal during normal operation are significantly time-consuming and laborious, requiring about 120 Newtons of force and taking 3 to 10 seconds.

[0037] This invention provides an oxygen delivery pipeline and a humidification bottle connected thereto, such as... Figure 1C-1HAs shown, the system includes a slender, hollow, flexible, and easily bendable tube 1 and a humidification bottle connector 2. The proximal end of the tube 1 is connected to the humidification bottle connector 2, and the distal end of the tube 1 can be connected to a nose plug 11 or a face mask (not shown). Oxygen enters the internal space 10 of the tube 10 through the externally sealed internal space 20 of the humidification bottle connector and then flows out. The humidification bottle connector 2 is provided with an anti-detachment structure 23 recessed on the outer surface 22 of the humidification bottle connector, which is an arc-shaped groove (or a protruding rib, not shown). A humidification bottle 3 connected to the above-mentioned oxygen delivery pipeline includes a bottle body 32 containing humidification liquid and a hollow oxygen input rod 33 connected to the bottle body 32. A hollow oxygen output rod 31, with at least one sealing body 34 on its outer surface that seals against the inner surface 21 of the humidification bottle connector of the oxygen delivery pipeline. The hardness of the sealing body 34 is lower than that of the inner surface 21 of the humidification bottle connector, meaning that an interference seal is achieved when the two come into contact due to the deformation of the flexible sealing body 34. At least one movable locking body 4 is included, with a pressing part 41 for finger operation to drive the locking body 4 to move. The connecting part 42 of the locking body 4 acts on the anti-detachment structure 23 of the outer surface 22 of the humidification bottle connector. In this embodiment, the connecting part 42 is a protrusion, such as... Figure 1C As shown, the protrusion is embedded in the arc-shaped groove of the anti-detachment structure 23 on the outer surface 22 of the humidification bottle connector, so that the humidification bottle connector 2 is in a locked state and will not detach when the humidification bottle connector 2 is pulled by the tube body 1; as Figure 1E As shown, in this embodiment, the locking body 4 is annular, the pressing part 41 is located at the top (to avoid accidental pressing, it can be designed as a concealed type, figure omitted), the connecting part 42 is located at the bottom, the connecting part 42 is provided with a hole 40, and a positioning post 43 connected to the humidification bottle 3 is sleeved in the hole 40. A spring 44 is sleeved on the positioning post 43, and the upper end of the spring 44 abuts against the lower end face of the connecting part 42 of the locking body 4; the humidification bottle also includes an elastic body 5. In this embodiment, the elastic body 5 is a compressible spring, sleeved on the outside of the oxygen output rod 31, and the fixed end of the elastic body 5 is located at the root of the oxygen output rod 31; as Figure 1C As shown, the force-applying end 51 of the elastic body 5 abuts against the end face 24 of the humidification bottle connector, compressing the elastic body 5. The elastic body 5 deforms and stores elastic potential energy when the humidification bottle connector 2 is in the locked state; as... Figure 1DAs shown, when the operator's finger applies the pressing part 41 of the locking body 4, the spring is instantly compressed, the locking body 4 moves downward, and the locking body 4 joint 42 disengages from the arc-shaped groove of the anti-disengagement structure 23 on the outer surface 22 of the humidification bottle connector. The elastic potential energy of the elastic body 5 is released and extended. The force-applying end 51 of the elastic body 5 pushes the end face 24 of the humidification bottle connector to move axially in the direction shown by the arrow in the figure. The humidification bottle connector 2 disengages from the oxygen output rod 31. The humidification bottle connector 2 can be removed simply by pressing the locking body 4 (the elastic body 5 can automatically pop the humidification bottle connector 2 out). No pulling force is required, and the time consumption is no more than 1.5 seconds, which greatly saves manpower. Because removing the traditional humidification bottle connector requires holding the humidification bottle with one hand and pulling the humidification bottle connector with the other hand, and even rotating it while pulling, the insertion process is also laborious.

[0038] The force-applying end 51 can be the end face portion of the spring, or it can be a rigid part connected to the end face portion of the spring as described in this embodiment.

[0039] The sealing body 34 protrudes from the outer surface of the oxygen output rod 31, so that the inner surface 21 of the humidification bottle connector only makes interference contact with the outer surface of the sealing body 34, forming a linear or narrow strip circumferential seal with a small contact area. When moving axially as indicated by the arrow, the friction is small, making it easy to insert and detach, eliminating the effort required by medical staff during operation; insertion requires only about 15 Newtons of force and takes no more than 1.5 seconds.

[0040] As an alternative, the connecting part 42 of the locking body 4 can also act on the outward extension of the end face 24 of the humidification bottle connector (not shown) to prevent the humidification bottle connector 2 from detaching. In this application, the outward extension of the end face 24 of the humidification bottle connector becomes the anti-detachment structure 23.

[0041] This embodiment also includes a housing 6, which houses all or most of the locking body 4, the elastic body 34, and the hollow oxygen output rod 31. The housing 6 has a first opening 61 that exposes the pressing part 41 of the locking body 4 and a second opening 62 that exposes at least the sealing body 34 on the hollow oxygen output rod 31. The exposure effect does not specifically refer to protruding from the outer surface of the housing, but rather to the degree of exposure where the operator's fingers can touch it and the humidification bottle connector can be inserted. The housing 6 guides the up-and-down movement of the locking body 4 and the insertion of the humidification bottle connector 2.

[0042] In this embodiment, when the inner surface 21 of the humidification bottle connector is sealed to the hollow oxygen output rod 31, the humidification bottle connector 2 is not easily pulled off by the tube body 1; the outer surface 22 of the humidification bottle connector refers to the area that is not sealed to the oxygen output rod 31 of the humidification bottle 3; the anti-detachment structure 23 protruding or recessed on the outer surface 22 of the humidification bottle connector will not increase the molding cost of the humidification bottle connector 2.

[0043] The humidifier bottle connector 2 is made of rigid resin materials, including rigid PVC and ABS, and is not easily deformed during normal insertion. Normal insertion refers to the routine insertion operation performed by medical staff holding the humidifier bottle connector 2 and applying force, i.e., inserting it into the oxygen output rod 31 of the humidifier bottle 3, usually with a force of about 120 Newtons.

[0044] like Figure 1G , Figure 1H As shown, the length L0 of the humidification bottle connector 2 is preferably between 10mm and 20mm, which can significantly reduce the amount of material used and save costs compared to the traditional humidification bottle connector length of 25mm-40mm; the length L1 used for sealing fit inside the humidification bottle connector 2 is between 3mm and 10mm, which is also significantly shorter than the traditional 12mm-28mm; the wall thickness of the humidification bottle connector 2 can also be less than 1mm, so that the weight of the humidification bottle connector 2 is between 0.4g and 1g, which can be manufactured using thin-wall injection molding process, greatly reducing material costs.

[0045] Example 2:

[0046] At least one secondary connector 25 is provided near the humidification bottle connector 2, which is connected to the tube body 1 through a hollow three-way transition part C. The internal space 250 of the secondary connector is connected to the internal space 10 of the tube body. When not in use, the secondary connector 25 is in a closed state. It can be sealed externally by adding a sealing cap (not shown) or by inserting it into the rod on the humidification bottle that is not connected to oxygen (not shown). When in use, it can be connected to functional gases such as helium, hydrogen, and nitric oxide. It can also deliver water vapor to assist in airway humidification. It can also be used for the infusion of ethanol, isopropanol, etc., into the blood foam in the airway of patients with pulmonary edema.

Claims

1. An oxygen delivery pipeline, comprising a slender, hollow, flexible, and easily bendable tube (1) and a humidification bottle connector (2), wherein the proximal end of the tube (1) is sealed to the humidification bottle connector (2), and the distal end of the tube (1) can be connected to a nasal plug (11) or a face mask, wherein oxygen enters the internal space of the tube through the externally sealed humidification bottle connector (20) and then flows out, characterized in that: The humidifier bottle connector (2) is provided with an anti-detachment structure (23) protruding and / or recessed on the outer surface (22) of the humidifier bottle connector. When the inner surface (21) of the humidifier bottle connector is sealed with the hollow oxygen output rod (31), the humidifier bottle connector (2) is not easily pulled off by the tube body (1). The humidifier bottle connector (2) is made of hard resin materials including hard PVC and ABS, and is not easily deformed during normal insertion. The outer surface of the oxygen output rod (31) is provided with a sealing body (34) that is in sealing contact with the inner surface (21) of the humidification bottle connector of the oxygen delivery pipeline. The hardness of the sealing body (34) is lower than that of the inner surface (21) of the humidification bottle connector. That is, when the two come into contact, the flexible sealing body (34) deforms to achieve an interference seal.

2. An oxygen delivery pipeline according to claim 1, characterized in that: The length L0 of the humidification bottle connector (2) is between 10mm and 20mm.

3. An oxygen delivery pipeline according to claim 1, characterized in that: The length L1 of the humidifier bottle connector (2) for sealing with the oxygen output rod (31) is between 3mm and 10mm.

4. An oxygen delivery pipeline according to claim 1, characterized in that: The weight of the humidification bottle connector (2) is between 0.4g and 1g.

5. An oxygen delivery pipeline according to claim 1, characterized in that: At least one secondary connector (25) is provided near the humidification bottle connector (2), and the internal space (250) of the secondary connector is connected to the internal space (10) of the tube body.

6. A humidification bottle connected to the oxygen delivery pipeline according to any one of claims 1-5, comprising a bottle body (32) containing humidification liquid, a hollow oxygen input rod (33) connected to the bottle body (32), and a hollow oxygen output rod (31), characterized in that: At least one movable locking body (4) is provided. The pressing part (41) of the locking body (4) is used for finger operation to drive the displacement of the locking body (4). The connecting part (42) of the locking body (4) acts on the anti-detachment structure (23) of the outer surface (22) of the humidification bottle connector, which can keep the humidification bottle connector (2) in a locked state so that the humidification bottle connector (2) will not detach when pulled by the tube body (1).

7. A humidification bottle according to claim 6, connected to the oxygen delivery pipeline according to any one of claims 1-5, characterized in that: It also includes an elastic body (5), which can be sleeved on the outside of the oxygen output rod (31). Its force-applying end (51) abuts against the end face (24) of the humidification bottle connector. When the humidification bottle connector (2) is in the locked state, the elastic body (5) deforms and stores elastic potential energy. After the locked state is released, it pushes the humidification bottle connector (2) to disengage from the oxygen output rod (31).

8. A humidification bottle according to claim 6, connected to the oxygen delivery pipeline according to any one of claims 1-5, characterized in that: The locking body (4) has a joint (42) that acts on the outward extension of the end face (24) of the humidification bottle connector.

9. A humidification bottle according to any one of claims 6-8, connected to an oxygen delivery pipeline according to any one of claims 1-5, characterized in that: It also includes a housing (6), which houses all or most of the locking body (4), the elastic body (5), and the hollow oxygen output rod (31). The housing (6) has a first opening (61) that exposes the pressing part (41) of the locking body (4) and a second opening (62) that exposes at least the sealing body (34) on the hollow oxygen output rod (31).

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