Portable oxygen therapy device for nursing

Abstract

The invention discloses a portable oxygen therapy device for nursing in the technical field of medical equipment. The portable oxygen therapy device is formed by hinging a main cabin body and an auxiliary cabin body through a hinge mechanism; an anti-bending oxygen catheter comprises a silicone tube body and a spiral supporting wire embedded in the tube wall. The quick connection system comprises a magnetic butt joint and a self-locking buckle linked with the magnetic butt joint; and a blood oxygen monitoring module. The main cabin body and the auxiliary cabin body can be turned over by 180 degrees through a double-shaft spring hinge, and the size is reduced by 58% after folding; according to the anti-bending oxygen catheter, the structure that the spiral nylon supporting wires are embedded in the silica gel is adopted, and the bending service life is longer than 500 times; the quick connection system integrates a magnetic butt joint (the blind insertion success rate is 98.7%) and a self-locking buckle (the leakage rate is smaller than 0.3 L / min); the device solves the problems that traditional oxygen therapy equipment is heavy, easy to damage and complex to operate through structural innovation, and is suitable for pre-hospital first aid, disaster rescue and other scenes.

Description

Technical Field

[0001] The invention relates to the field of medical equipment, in particular to a portable oxygen supply device for nursing. Background Art

[0002] Emergency transfer requires oxygen due to the condition. The current portable oxygen supply device is bulky and inconvenient to carry, and the head of the oxygen supply device is easy to break. Traditional oxygen storage tanks are large in size and the folding rate is less than 40%, resulting in a large space occupied during transportation. The hard plastic used at the connection of the nasal oxygen tube is easy to break after bending. Therefore, it has become an urgent need to develop a portable oxygen supply device for nursing that is "easy to carry and store, can achieve the effect of short-term oxygen therapy, and consumables are not easily damaged." Summary of the invention

[0003] The purpose of the present invention is to provide a portable oxygen supply device for nursing use, which solves the problems raised in the above background technology.

[0004] To achieve the above-mentioned object, the present invention provides the following technical solution: A portable oxygen supply device for nursing use, comprising: a foldable shell, which is composed of a main cabin and a sub-cabin hinged by a hinge mechanism; The anti-bending oxygen delivery tube comprises a silicone tube body and a spiral support wire embedded in the tube wall; A quick connection system, comprising a magnetic docking head and a self-locking buckle linked to the magnetic docking head; The blood oxygen monitoring module is arranged on one side of the main cabin, and is used to monitor the oxygen supply process.

[0005] As a further optimization of the technical solution, the pitch of the spiral support wire is 1-3 mm, and the wire diameter is 0.1-0.3 mm.

[0006] As a further optimization of the technical solution, the hinge mechanism is a biaxial spring hinge, and its spring preload force is configured to be 2-5N·m. The auxiliary cabin body can rotate 0-180° around the biaxial spring hinge axis and be locked in the unfolded position or the folded position.

[0007] As a further optimization of the technical solution, the magnetic docking joint includes a permanent magnet unit in an annular array, the magnetic induction intensity of each permanent magnet unit is 0.3-0.5T, and the magnetic pole distribution of the permanent magnet unit is complementary and symmetrically arranged with the magnetic poles of the oxygen supply pipeline interface.

[0008] As a further optimization of the present technical solution, the self-locking buckle comprises a wedge-shaped fluororubber sealing ring 303 and a spring clip, and the rebound rate of the fluororubber sealing ring in a compressed state is 80%-95%.

[0009] As a further optimization of this technical solution, a tube storage groove is provided on the outer surface of the main cabin body. Anti-slip protrusions are arranged in an array on the inner side wall of the tube storage groove, and the height of the anti-slip protrusions is 0.5 - 1.2 mm.

[0010] As a further optimization of this technical solution, the blood oxygen monitoring module includes: a photoelectric sensor embedded in the tube wall at 10 - 15 cm from the end of the oxygen delivery tube; a Bluetooth transmission unit electrically connected to the photoelectric sensor.

[0011] The driving voltage of the micro peristaltic pump of the pumping module is 12 VDC, and the power ≤ 5 W; the measurement accuracy of the bidirectional flow sensor is ±1% FS, and the response time ≤ 10 ms.

[0012] Compared with the prior art, a portable oxygen delivery device for nursing of the present invention has the following beneficial effects: Improved portability: The volume after folding is 22×14×8 cm (58% smaller than the traditional device), the weight is 1.15 kg, and it can be unfolded with one hand in 3 seconds. Breakthrough in durability: The bending life of the oxygen delivery tube > 500 times (the industry average is 100 times), and the fracture rate is reduced to 0.3 times per thousand hours. Optimization of operation efficiency: The magnetic connection takes 0.5 seconds (compared with 7.2 seconds for threaded connection); the embedded blood oxygen monitoring (error ±1.2%) transmits data in real time, improving the accuracy of first aid response. Description of the Drawings

[0013] Figure 1 It is a schematic structural diagram of the wearable module of the present invention; Figure 2 It is a schematic bottom view structure diagram of the present invention; Figure 3 It is a schematic cross-sectional structure diagram of the anti-bending oxygen delivery tube of the present invention.

[0014] In the figure: 101, main cabin body; 102, sub-cabin body; 103, hinge mechanism; 104, tube storage groove; 105, anti-slip protrusion; 201, anti-bending oxygen delivery tube; 202, helical support wire; 301, magnetic docking head; 302, self-locking buckle; 303, fluororubber sealing ring; 501, photoelectric sensor. Detailed Embodiments

[0015] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention. Embodiment 1

[0016] Please refer to Figures 1 to 3, this embodiment provides a technical solution: a portable oxygen delivery device for nursing, including: a foldable housing, which is composed of a main cabin body 101 and a sub-cabin body 102 hinged by a hinge mechanism 103; An anti-bending oxygen delivery tube 201, which includes a silicone tube body and a helical support wire 202 embedded in the tube wall; A quick connection system, which includes a magnetic docking head 301 and a self-locking buckle 302 linked with the magnetic docking head 301; A blood oxygen monitoring module, which is arranged on one side of the main cabin body 101, and the blood oxygen monitoring module is used to monitor the oxygen delivery process.

[0017] More specifically: as Figure 1 shown, the device includes a main cabin body 101 and a sub-cabin body 102, and the two are connected by a hinge mechanism 103 of a biaxial spring hinge. The anti-bending oxygen delivery tube 201 is made of medical-grade silicone (Shore hardness 35A), and a nylon 66 helical support wire 202 with a diameter of 0.2 mm is embedded in the tube wall. The magnetic docking head 301 of the quick connection system is provided with 8 N52 neodymium iron boron magnets, and the magnetic poles are arranged in an alternating NS pattern with the hospital oxygen supply port. After folding, the volume is reduced by 58% (compared with the average volume of traditional devices of 35×20×15 cm), and the helical support structure increases the bending life of the oxygen delivery tube to >500 times (the average of traditional PVC tubes is 100 breaks).

[0018] During specific implementation, the pitch of the helical support wire 202 is 1-3 mm, the wire diameter is 0.1-0.3 mm, and the material is selected from at least one of nylon 6, nylon 66 or polyether ether ketone.

[0019] More specifically: The helical support wire (202) was tested by comparing three specifications: Scheme A: pitch 1 mm, wire diameter 0.3 mm, polyether ether ketone material; Scheme B: pitch 2 mm, wire diameter 0.2 mm, nylon 66 material; Scheme C: pitch 3 mm, wire diameter 0.1 mm, nylon 6 material. After the GB / T 15812.1-2005 bending test, no cracks occurred in Scheme B after 500 times of 90° bending (2 microcracks occurred in Scheme A, and 1 fracture occurred in Scheme C).

[0020] During specific implementation, the hinge mechanism 103 is a biaxial spring hinge, and its spring pre-tightening force is configured to be 2-5 N·m. The sub-cabin body 102 can rotate 0-180° around the biaxial spring hinge axis and be locked in the unfolded position or the folded position.

[0021] More specifically: The pre-tightening force of the biaxial spring hinge (103) is calibrated by a torsion tester: when the pre-tightening force < 2 N·m, the sub-cabin body (102) is likely to unfold accidentally during transportation vibration; when the pre-tightening force > 5 N·m, the force required for single-handed operation by medical staff exceeds the ergonomic limit; an optimized pre-tightening force of 3.2 N·m is selected, and the test result of the unfolding / folding operation force is 4.8 N (meeting the human-machine interaction ability standard of ISO13482:2014 for robot-assisted devices). During specific implementation, the magnetic docking head 301 includes a ring-array of permanent magnet units, the magnetic induction intensity of each permanent magnet unit is 0.3 - 0.5 T, and the magnetic pole distribution of the permanent magnet units is complementary and symmetric to the magnetic poles of the oxygen supply pipe interface.

[0022] More specifically: The magnetic block arrangement of the magnetic docking head 301 is as Figure 2 shown: The supporting oxygen supply port adopts a reverse magnetic pole distribution. Experimental data shows that when the magnetic induction intensity is 0.42 T, the blind plug docking success rate reaches 98.7% (compared with the average time of 7.2 seconds required for threaded connection).

[0023] During specific implementation, the self-locking buckle 302 includes a wedge-shaped fluororubber sealing ring 303 and a spring clip, and the resilience rate of the fluororubber sealing ring 303 in the compressed state is 80% - 95%.

[0024] More specifically: The compression and resilience rate test of the wedge-shaped fluororubber sealing ring 303: The initial thickness is 5 mm, after being compressed to 3 mm and left standing for 24 hours, Scheme A: ordinary fluororubber, the resilience rate is 82%; Scheme B: modified with graphene added, the resilience rate is increased to 93%; Scheme B is selected, and the leakage rate test result is 0.3 L / min (YY / T 1543 - 2017 requires < 1.0 L / min).

[0025] During specific implementation, the outer surface of the main cabin body 101 is provided with a pipe body storage groove 104, and the inner side wall of the pipe body storage groove 104 is arrayed with anti-slip protrusions 105, and the height of the anti-slip protrusions 105 is 0.5 - 1.2 mm.

[0026] More specifically: The anti-slip protrusions 105 of the pipe body storage groove 104 are in a hemispherical array (diameter 1 mm, height 0.8 mm). Comparative tests show that: when there are no anti-slip patterns, the probability of the anti-bending oxygen delivery pipe 201 falling out during transportation is 17%; after adding the anti-slip protrusions 105, the falling-out probability is reduced to 2.3%.

[0027] During specific implementation, the blood oxygen monitoring module includes: a photoelectric sensor 501, embedded in the pipe wall at 10 - 15 cm from the end of the oxygen delivery pipe 201; a Bluetooth transmission unit, electrically connected to the photoelectric sensor 501.

[0028] More specifically: The photoelectric sensor 501 is selected as an SFH7050 type reflective probe and is embedded 12 cm from the end of the oxygen delivery tube. Clinical comparative test: The measurement error of the blood oxygen saturation of this device is ±1.2% (the reference device is Masimo Radical-7, with an error of ±0.8%), and the signal loss rate caused by limb movement of the traditional clamping probe is reduced by 87%. Embodiment 2

[0029] The main cabin 101 includes a non-humidification module provided inside it: Oxygen flows through a porous ceramic filter element (pore diameter 10 μm, hydrophilic treatment), and reaches a humidity output of 75%RH through microporous atomization, without the need for an external humidification tank. A porous ceramic filter element and a quick-release slot are provided in the middle of the vertical flow channel of the main cabin 101. Quick-release slot: Spring steel sheet buckles are used to fix both ends of the filter element, and it can be unlocked by pressing when replacing. Nano-silver coating: An antibacterial layer with a thickness of 120 nm (bacteriostatic rate 99.2%, ISO 22196) is sprayed on the inner wall of the slot. Function verification: The output humidity is 75%RH (80%RH for the traditional humidification tank), and the pressure loss is <0.5 kPa when the flow rate is 5 L / min.

[0030] Working principle: Folding housing: The main cabin 101 and the secondary cabin 102 are connected by a hinge mechanism 103 of a double-axis spring hinge, forming an L-shaped oxygen delivery channel when unfolded, and the volume is reduced by 58% after folding. The hinge pre-tightening force (3.2 N·m) ensures that the unfolded / folded state can be locked with one hand operation. Anti-bending oxygen delivery tube: A nylon 66 spiral support wire 202 is embedded in the silicone tube body, and the bending stress is dispersed through spiral mechanics, and it can withstand >500 times of 90° bending. Quick connection system: The magnetic docking head 301 uses a 0.42T neodymium iron boron magnet to achieve blind insertion (success rate 98.7%); the wedge-shaped fluororubber sealing ring 303 (rebound rate 93%) of the self-locking buckle 302 ensures that the leakage rate <0.3 L / min. Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A portable oxygen delivery device for nursing, characterized in that: Comprising: A foldable housing, which is composed of a main cabin (101) and a secondary cabin (102) hinged by a hinge mechanism (103); An anti-bending oxygen delivery tube (201), which includes a silica gel tube body and a helical support wire (202) embedded in the tube wall; A quick connection system, which includes a magnetic docking head (301) and a self-locking buckle (302) linked with the magnetic docking head (301); A blood oxygen monitoring module, which is arranged on one side of the main cabin (101), and the blood oxygen monitoring module is used to monitor the oxygen delivery process.

2. The portable oxygen delivery device for nursing according to claim 1, wherein: The pitch of the helical support wire (202) is 1 - 3 mm, and the wire diameter is 0.1 - 0.3 mm.

3. The portable oxygen delivery device for nursing according to claim 2, wherein: The hinge mechanism (103) is a biaxial spring hinge, and its spring pre-tightening force is configured to be 2 - 5 N·m. The secondary cabin (102) can rotate 0 - 180° around the biaxial spring hinge axis and be locked in the unfolded position or the folded position.

4. The portable oxygen delivery device for nursing according to claim 3, wherein: The magnetic docking head (301) includes a ring array of permanent magnet units, the magnetic induction intensity of each permanent magnet unit is 0.3 - 0.5 T, and the magnetic pole distribution of the permanent magnet unit is complementary and symmetrically arranged with the magnetic poles of the oxygen supply pipe interface.

5. The portable oxygen delivery device for nursing according to claim 4, characterized in that: The self-locking buckle (302) includes a wedge-shaped fluororubber sealing ring (303) and a spring clip, and the resilience rate of the fluororubber sealing ring (303) in the compressed state is 80% - 95%.

6. The portable oxygen delivery device for nursing according to claim 5, wherein: The outer surface of the main cabin (101) is provided with a tube body storage groove (104), and the inner side wall of the tube body storage groove (104) is arrayed with anti-slip protrusions (105), and the height of the anti-slip protrusions (105) is 0.5 - 1.2 mm.

7. The portable oxygen delivery device for nursing according to claim 6, characterized in that: The blood oxygen monitoring module includes: a photoelectric sensor (501), which is embedded in the tube wall 10 - 15 cm from the end of the oxygen delivery tube (201); a Bluetooth transmission unit, which is electrically connected to the photoelectric sensor (501).

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