Silica gel catheter structure

Abstract

The utility model relates to the technical field of catheters, in particular to a silica gel catheter structure which comprises an outer catheter, an inner conveying pipe is embedded in the outer catheter, a one-way valve is arranged at the position, close to the left end of the outer catheter, of the inner conveying pipe, an outer threaded column is arranged at the right end of the outer wall of the outer catheter, an inserting groove is formed in the inner wall of the outer threaded column, and clamping grooves are symmetrically formed in the inserting groove. A sealing rubber ring is arranged at the position, close to the left end, of the outer wall of the inner conveying pipe and corresponds to the clamping groove. A plurality of air cushions are embedded between the inner wall and the outer wall of the outer guide pipe. According to the silica gel catheter structure, the multiple air cushions with the interlayers are arranged to be combined with the outer catheter for use, the toughness of the outer catheter is improved, the pressing influence of external extrusion on the inner conveying pipes is reduced, the influence of collapse on infusion and gas conveying cooperation is reduced, every two adjacent inner conveying pipes are matched in an inserted mode through the inserting grooves, and the sealing rubber rings are matched with the clamping grooves in an inserted mode; the nuts are matched with each other and are in threaded connection with the external threaded columns, so that two adjacent outer guide pipes can be quickly combined, mounted and matched with each other.

Description

Technical Field

[0001] The utility model relates to the technical field of catheters, in particular to a silicone catheter structure. Background Art

[0002] The laryngeal mask tube is an artificial airway device used to establish a trachea in unconscious patients, which allows patients to maintain spontaneous breathing during surgery and implement positive pressure ventilation;

[0003] The utility model with the announcement number CN216022559U discloses a laryngeal mask airway catheter device, comprising a ventilation pipe, a baffle frame arranged along the inside of the ventilation pipe, the inner surface of the baffle frame and the inner wall of the ventilation pipe form a fixed cavity, an annular inflatable cover is installed at the opening of one end of the ventilation pipe, a drug delivery mechanism is installed on the outer surface of the annular inflatable cover, the drug delivery mechanism is used in conjunction with the fixed cavity, a liquid discharge mechanism is installed on the outer surface of the annular inflatable cover on one side of the drug delivery mechanism, and the outer surface of the baffle frame and the inner wall of the ventilation pipe form a ventilation cavity;

[0004] The above technical solution is provided with a series of structures, in which the drug is pumped into the drug administration pump by the propeller, the drug is delivered to the drug administration pipeline by the drug administration pump, the drug solution flows from the drug administration pipeline to the drug administration flow channel, and then slowly penetrates into the patient's throat through the overflow hole, contacts with the surface of the patient's throat, and is convenient for treating patients with throat infection or other pathological changes and patients with respiratory bleeding; however, the catheter as a whole is not convenient for rapid combination and installation with a laryngeal mask or a face mask, and the catheter is easily squeezed to cause the pipeline to collapse, blocking the delivery, causing the impact on drug delivery or gas delivery, and the catheters are not convenient for splicing and combining, and it is not convenient to extend the length of the catheter, and it is not suitable for different occasions. Utility Model Content

[0005] The utility model aims to provide a silicone catheter structure to solve the problem of a laryngeal mask airway catheter device with the authorization announcement number CN216022559U proposed in the above-mentioned background technology, but the catheter as a whole is not convenient for quick combination and installation with the laryngeal mask or the mask, and the catheter is easily squeezed to cause the pipeline to collapse, blocking the transportation, causing the impact of drug delivery or gas delivery, and the catheters are not convenient for splicing and combination, and it is not convenient to extend the length of the catheter and apply it to different occasions.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A silicone catheter structure comprises an outer catheter, an inner delivery tube is embedded inside the outer catheter, a one-way valve is provided on the inner delivery tube near the left end of the outer catheter, an external threaded column is provided at the right end of the outer wall of the outer catheter, a slot is provided on the inner wall of the external threaded column, and a card slot is symmetrically provided in the slot, a sealing rubber ring is provided on the outer wall of the inner delivery tube near the left end and corresponding to the card slot, and a plurality of air cushions are embedded between the inner wall and the outer wall of the outer catheter.

[0008] Among them, both the outer catheter and the inner delivery tube are made of silicone material, which increases the comfort of fitting with the skin. At the same time, it has toughness to reduce breakage damage caused by repeated bending and affect continuous use.

[0009] Preferably, symmetrical limiting rings are sleeved on the outer wall of the outer conduit near the left end, and a nut is provided between the two limiting rings.

[0010] In the utility model, the cooperation of the two limiting rings helps to limit the position of the nut, reducing the possibility that the nut is separated from the position between the two limiting rings and affects the combined connection and cooperation of adjacent pipes.

[0011] Preferably, the two limiting rings are bonded and fixed to the outer catheter, a through groove is opened in the middle of the nut, the inner diameter of the through groove is adapted to the outer diameter of the outer catheter, an internal thread is provided inside the nut, and the internal thread of the nut is threadedly connected and matched with the external thread column.

[0012] In the utility model, the through groove and the outer catheter are slidably matched, and the nut is threadedly connected with the corresponding outer threaded column to achieve rapid combination and installation of two adjacent outer catheters. The left end of the outer catheter is combined with the corresponding stud on the mask and laryngeal mask, and is quickly fixed and installed with the cooperation of the nut, which is convenient for combined installation or disassembly.

[0013] Preferably, both ends of the one-way valve are bonded and fixed to the inner delivery pipe, and the inner delivery pipe is bonded and fixed to the outer conduit.

[0014] In the utility model, the cooperation of the one-way valve helps the inner delivery tube to deliver gas or liquid in one direction, thereby reducing the impact of backflow on use.

[0015] Preferably, the air cushions are distributed in a circular shape with equal intervals, and the cross-section of the air cushions is fan-shaped, and the hollow area between the inner wall and the outer wall of the air cushion is an interlayer, and the interlayer is filled with air.

[0016] In the utility model, with the cooperation of multiple air cushions, the toughness of the outer catheter is increased, the collapse of the inner delivery tube caused by external force squeezing is reduced, and the influence of infusion or gas delivery is reduced. The interlayer is filled with air to reduce the production cost and the overall weight.

[0017] Preferably, the sealing rubber ring is bonded and fixed to the inner delivery tube, the outer diameter of the inner delivery tube is matched with the inner diameter of the slot, and the width of the outer wall of the sealing rubber ring is matched with the width of the inner wall of the slot.

[0018] In the utility model, with the cooperation of the sealing rubber ring, and the plug-in cooperation of the sealing rubber ring and the card slot, the sealing performance of the combined installation of two adjacent inner delivery pipes is increased, and the influence of liquid leakage and gas leakage on the use of the overall combination is reduced.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] 1. The utility model increases the toughness of the outer catheter, reduces the pressure effect of external extrusion on the inner delivery tube, reduces the influence of collapse on the coordination of infusion and gas delivery, and the two adjacent inner delivery tubes are plugged in and matched through the slot, and the sealing rubber ring is plugged in and matched with the card slot to increase the air tightness of the combination, and the nut is matched and threadedly connected with the external threaded column to realize the rapid combination and installation of the two adjacent outer catheters.

[0021] 2. The utility model sets a one-way valve to reduce the backflow of the inner delivery tube that affects the delivery use, and with the cooperation of two limit rings, limits the movement range of the nut, which is convenient for rapid thread combination. With the cooperation of the nut, it is helpful to thread the inner delivery tube and the corresponding mask and laryngeal mask for installation, thereby increasing the flexibility of installation or disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of a plurality of conduit splicing combination structures of the utility model;

[0023] Figure 2 It is a schematic diagram of the overall combined structure of the utility model;

[0024] Figure 3 This is a schematic diagram of the structure of the outer catheter of the utility model;

[0025] Figure 4 This is a schematic diagram of the combined structure of the inner delivery pipe, the outer guide tube and the nut of the utility model;

[0026] Figure 5 It is a schematic diagram of the longitudinal section structure of the outer catheter of the utility model;

[0027] Figure 6 It is a schematic diagram of the overall transverse section structure of the utility model.

[0028] The meaning of each number in the figure is:

[0029] External catheter; 10, external threaded column; 100, slot; 101, card slot; 11, limit ring; 12, air cushion; 120, interlayer;

[0030] Inner delivery pipe; 20. Sealing rubber ring;

[0031] One-way valve;

[0032] Nut; 40, through slot. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] See also Figure 1-Figure 6 , this embodiment provides a technical solution:

[0035] A silicone catheter structure comprises an outer catheter 1, an inner delivery tube 2 is embedded inside the outer catheter 1, a one-way valve 3 is provided on the inner delivery tube 2 near the left end of the outer catheter 1, an outer threaded column 10 is provided at the right end of the outer wall of the outer catheter 1, a slot 100 is provided on the inner wall of the outer threaded column 10, and a card slot 101 is symmetrically provided in the slot 100, a sealing rubber ring 20 is provided on the outer wall of the inner delivery tube 2 near the left end and corresponding to the card slot 101, and a plurality of air cushions 12 are embedded between the inner wall and the outer wall of the outer catheter 1.

[0036] Among them, the outer catheter 1 and the inner delivery tube 2 are both made of silicone material, which increases the comfort of fitting with the skin and has toughness, reducing breakage damage caused by repeated bending and affecting continuous use.

[0037] In this embodiment, symmetrical limiting rings 11 are sleeved on the outer wall of the outer conduit 1 near the left end, and a nut 4 is arranged between the two limiting rings 11 .

[0038] In the utility model, the cooperation of the two limiting rings 11 helps to limit the position of the nut 4, thereby reducing the possibility that the nut 4 is separated from the position between the two limiting rings 11 and affects the combined connection of adjacent pipes.

[0039] Furthermore, two limit rings 11 are bonded and fixed to the outer catheter 1 , a through groove 40 is provided in the middle of the nut 4 , the inner diameter of the through groove 40 is adapted to the outer diameter of the outer catheter 1 , an internal thread is provided inside the nut 4 , and the internal thread of the nut 4 is threadedly connected and matched with the external thread column 10 .

[0040] In the utility model, the through groove 40 is slidably matched with the outer catheter 1, and the nut 4 is threadedly connected with the corresponding external threaded column 10, so that the two adjacent outer catheters 1 can be quickly combined and installed. The left end of the outer catheter 1 is combined with the corresponding stud on the mask and laryngeal mask, and is quickly fixed and installed with the cooperation of the nut 4, which is convenient for combined installation or disassembly.

[0041] Specifically, both ends of the one-way valve 3 are bonded and fixed to the inner delivery pipe 2 , and the inner delivery pipe 2 is bonded and fixed to the outer conduit 1 .

[0042] In the utility model, the cooperation of the one-way valve 3 helps the inner delivery tube 2 to deliver gas or liquid in one direction, thereby reducing the impact of backflow on use.

[0043] It should be noted that the air cushions 12 are distributed in a circular shape with equal intervals, and the cross-section of the air cushion 12 is fan-shaped. The hollow area between the inner wall and the outer wall of the air cushion 12 is the interlayer 120, and the interlayer 120 is filled with air.

[0044] In the utility model, with the cooperation of multiple air cushions 12, the toughness of the outer catheter 1 is increased, and the collapse of the inner delivery tube 2 caused by external force squeezing is reduced, which affects the coordination of infusion or gas delivery. The interlayer 120 is filled with air to reduce production costs and the overall weight.

[0045] Furthermore, the sealing rubber ring 20 is bonded and fixed to the inner delivery tube 2 , the outer diameter of the inner delivery tube 2 is matched with the inner diameter of the slot 100 , and the width of the outer wall of the sealing rubber ring 20 is matched with the width of the inner wall of the slot 101 .

[0046] In the present invention, with the cooperation of the sealing rubber ring 20, and the plug-in cooperation of the sealing rubber ring 20 and the card slot 101, the sealing performance of the combined installation of two adjacent inner delivery pipes 2 is increased, and the influence of liquid leakage and gas leakage on the use of the overall combination is reduced.

[0047] When the silicone catheter structure of this embodiment is in use, the user embeds the air cushion 12 filled with air in the interlayer 120 in an annular shape with equal intervals in the outer catheter 1 to increase the overall anti-extrusion performance. The inner delivery tube 2 with a one-way valve 3 is combined and connected with the outer catheter 1, and then the nut 4 with a through groove 40 is sleeved between the two limit rings 11 on the outer catheter 1. When the length of the pipeline needs to be extended, the two adjacent outer catheters 1 are combined and connected, and the inner delivery tube 2 with a sealing rubber ring 20 at one end is plugged into and matched with the slot 100 in the external threaded column 10 on the other outer catheter 1, and the sealing rubber ring 20 is tightly plugged into and matched with the card groove 101 to increase the air tightness of the combination, and then the nut 4 is threadedly connected with the corresponding external threaded column 10 to achieve rapid combination and installation and extend the length of the pipeline. When the outer catheter 1 needs to be combined with the corresponding mask or laryngeal mask, the inner delivery tube 2 is plugged into and matched with the connecting pipe on the corresponding mask or laryngeal mask, and is threadedly connected through the nut 4 to increase the stability of the installation. The overall combination is convenient to install, which is conducive to disassembly, installation or replacement.

Claims

1. A silicone catheter structure, comprising an outer catheter (1), an inner delivery tube (2) embedded inside the outer catheter (1), a one-way valve (3) provided on the inner delivery tube (2) near the left end of the outer catheter (1), characterized in that: An external threaded column (10) is provided at the right end of the outer wall of the outer conduit (1), a slot (100) is provided on the inner wall of the external threaded column (10), and a clamping groove (101) is symmetrically provided in the slot (100), a sealing rubber ring (20) is provided on the outer wall of the inner delivery tube (2) near the left end and corresponding to the clamping groove (101), and a plurality of air cushions (12) are embedded between the inner wall and the outer wall of the outer conduit (1).

2. The silicone catheter structure according to claim 1, characterized in that: Symmetrical limiting rings (11) are sleeved on the outer wall of the outer conduit (1) near the left end, and a nut (4) is provided between the two limiting rings (11).

3. The silicone catheter structure according to claim 2, characterized in that: The two limiting rings (11) are bonded and fixed to the outer catheter (1); a through groove (40) is provided in the middle of the nut (4); the inner diameter of the through groove (40) is matched with the outer diameter of the outer catheter (1); an internal thread is provided inside the nut (4), and the internal thread of the nut (4) is threadedly connected and matched with the external thread column (10).

4. The silicone catheter structure according to claim 1, characterized in that: Both ends of the one-way valve (3) are bonded and fixed to the inner delivery pipe (2), and the inner delivery pipe (2) is bonded and fixed to the outer guide tube (1).

5. The silicone catheter structure according to claim 1, characterized in that: The air cushions (12) are distributed in a circular shape with equal spacing, and a cross-section of the air cushion (12) is fan-shaped; a hollow area between an inner wall and an outer wall of the air cushion (12) is an interlayer (120), and the interlayer (120) is filled with air.

6. The silicone catheter structure according to claim 1, characterized in that: The sealing rubber ring (20) is bonded and fixed to the inner delivery tube (2); the outer diameter of the inner delivery tube (2) matches the inner diameter of the slot (100); and the width of the outer wall of the sealing rubber ring (20) matches the width of the inner wall of the slot (101).

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