Air leakage prevention device for trachea cannula catheter air bag

Abstract

The utility model discloses an air leakage prevention device for an air bag of a trachea cannula catheter, which belongs to the technical field of medical appliances and comprises an air bag, one end of the air bag is connected with the corresponding end of a connecting tube in an inserted manner, sealing rings are arranged at two ends of the air bag, sealing grooves are formed in the sealing rings, and sealing rings are clamped in the sealing grooves. One end of the sealing ring abuts against the corresponding end of the air bag, and a sealing plate is arranged in the sealing groove. According to the air leakage prevention device for the trachea cannula catheter air bag, the air bag, the connecting pipe, the sealing ring, the sealing groove, the sealing ring and the sealing plate are arranged, the air leakage prevention device can seal a connecting opening of the air bag and the connecting pipe through multiple sets of sealing pieces, and therefore the air leakage condition of the air bag in the using process is avoided; therefore, the risk that secretions generated by the patient permeate into the lung of the patient from a gap or flow back to the incision due to the gap generated between the air bag and the connecting pipe, and infection of the lung or the incision of the patient is caused is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical instruments, in particular to an air bag anti-leakage device for an endotracheal intubation catheter. Background Art

[0002] A medical endotracheal tube is an important medical device used in cardiopulmonary resuscitation and the rescue of critically ill patients with respiratory dysfunction. A medical endotracheal tube includes a catheter and a positioning airbag surrounding the outer wall of the catheter, the positioning airbag is connected to an airbag inflation connector through an air supply tube; the airbag inflation connector includes a connecting sleeve, one end of the connecting sleeve is connected to the air supply tube, and the other end of the connecting sleeve is provided with a plug tube connected to the inflator, and the plug tube is provided with a plug controlled by spring force, which closes the plug tube in a natural state and allows the plug tube to be conductive when subjected to force.

[0003] A Chinese patent discloses an anti-leakage endotracheal cannula with the publication number CN209713920U. The patent states that "it includes an airbag inflation connector connected to a positioning airbag through an air supply tube, the airbag inflation connector includes a connecting sleeve and a plug-in tube, the connecting sleeve is sleeved with the air supply tube, the plug-in tube is plugged with an inflator; a valve is provided between the connecting sleeve and the plug-in tube". The existing airbag and the connecting tube have poor sealing properties, and air leakage is prone to occur after long-term use. Airbag leakage can easily cause the patient's secretions to flow back from the gap and cause damage to the patient. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides an anti-leakage device for the endotracheal intubation catheter air bag, which solves the problem that the sealing between the existing air bag and the connecting tube is poor, and air leakage is easy to occur after long-term use. The air bag leakage can easily cause the patient's secretions to flow back from the gap and cause damage to the patient.

[0005] The technical solution of the utility model is as follows: a tracheal intubation catheter airbag anti-leakage device, comprising an airbag, one end of the airbag is plugged into the corresponding end of a connecting tube, both ends of the airbag are provided with sealing rings, a sealing groove is opened in the sealing ring, a sealing ring is clamped in the sealing groove, one end of the sealing ring is abutted against the corresponding end of the airbag, and a sealing plate is provided in the sealing groove.

[0006] As a further solution of the utility model: one end of the sealing ring is connected to a corresponding end of the fixing ring, two springs are arranged in the fixing ring, and ends of the two springs that are far away from each other are connected to the inner wall of the same fixing ring.

[0007] As a further solution of the utility model: the opposite ends of the two springs are connected to the sides away from the two fixing members respectively, and the inner wall size of the fixing member is matched with the outer wall size of the connecting pipe.

[0008] As a further solution of the utility model: the other end of the connecting pipe is connected to the corresponding end of the first ball valve, and the other end of the first ball valve is connected to the corresponding end of the branch pipe.

[0009] As a further solution of the utility model: the other end of the airbag is connected to the corresponding end of the intake pipe, and the other end of the intake pipe is connected to the external pipe through a second ball valve, and the first ball valve and the second ball valve are both electromagnetic control ball valves.

[0010] As a further solution of the utility model: the other end of the branch pipe is connected to the outer wall of the conduit, and connectors are provided at both ends of the conduit.

[0011] As a further solution of the utility model: the inner wall size of the sealing ring is matched with the outer wall size of the connecting pipe, and the sealing ring is made of nitrile rubber material.

[0012] As a further solution of the utility model: one end of the sealing plate is in contact with a corresponding end of the sealing ring, and the outer wall size of the sealing plate is matched with the inner wall size of the sealing groove.

[0013] The working principle and beneficial effects of the utility model are:

[0014] 1. The endotracheal intubation catheter airbag anti-leakage device, by arranging an airbag, a connecting tube, a sealing ring, a sealing groove, a sealing ring and a sealing plate, can seal the connecting port between the airbag and the connecting tube through multiple sets of sealing parts, thereby preventing the airbag from leaking during use, and further preventing the formation of a gap between the airbag and the connecting tube so that the secretions produced by the patient penetrate into the patient's lungs through the gap or flow back to the incision, causing the risk of infection in the patient's lungs or the incision.

[0015] 2. The endotracheal intubation catheter balloon anti-leakage device, by providing a fixing ring, a spring and a fixing part, enables the anti-leakage device to position and fix the connecting tube during use, thereby ensuring the stability of the connecting tube and preventing the connecting tube from shaking during use, thereby affecting the airtightness of the connection between the connecting tube and the balloon. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0018] Figure 2 It is a three-dimensional structural diagram of the airbag of the utility model;

[0019] Figure 3 It is a three-dimensional structural schematic diagram of the spring of the utility model;

[0020] Figure 4 This is a schematic diagram of the cross-sectional structure of the sealing ring of the utility model when viewed from the front;

[0021] In the figure: 1 air bag, 2 connecting pipe, 3 sealing ring, 4 sealing groove, 5 sealing ring, 6 sealing plate, 7 fixing ring, 8 spring, 9 fixing piece, 10 first ball valve, 11 branch pipe, 12 intake pipe, 13 second ball valve, 14 external pipe, 15 conduit, 16 connector. DETAILED DESCRIPTION

[0022] The following will be combined with 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 of 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.

[0023] like Figure 1-4As shown, the utility model provides a technical solution: an anti-leakage device for an endotracheal intubation catheter airbag, comprising an airbag 1, one end of the airbag 1 is plugged with an end corresponding to a connecting tube 2, both ends of the airbag 1 are provided with a sealing ring 3, a sealing groove 4 is opened in the sealing ring 3, a sealing ring 5 is clamped in the sealing groove 4, one end of the sealing ring 5 is abutted against the end corresponding to the airbag 1, a sealing plate 6 is arranged in the sealing groove 4, one end of the sealing ring 3 is connected to the end corresponding to a fixing ring 7, two springs 8 are arranged in the fixing ring 7, and the ends of the two springs 8 away from each other are connected to the inner wall of the same fixing ring 7, the opposite ends of the two springs 8 are connected to the sides away from the two fixing members 9 respectively, the inner wall size of the fixing member 9 is adapted to the outer wall size of the connecting tube 2, by arranging the fixing ring 7, the spring 8 and the fixing member 9, the anti-leakage device can position and fix the connecting tube 2 during use, thereby ensuring the stability of the connecting tube 2 and preventing the connecting tube 2 from shaking during use, thereby affecting its connection with the airbag. The airtightness of the connection between the airbags 1, the other end of the connecting pipe 2 is connected to the end corresponding to the first ball valve 10, the other end of the first ball valve 10 is connected to the end corresponding to the branch pipe 11, the other end of the airbag 1 is connected to the end corresponding to the intake pipe 12, the other end of the intake pipe 12 is connected to the external pipe 14 through the second ball valve 13, the first ball valve 10 and the second ball valve 13 are both electromagnetic control ball valves, the other end of the branch pipe 11 is connected to the outer wall of the conduit 15, and the two ends of the conduit 15 are provided with connectors 16. By arranging the first ball valve 10 and the second ball valve 13, when the gas in the airbag 1 reaches a certain volume, the flow of the gas can be automatically closed, so that the gas in the airbag 1 is at a constant value, thereby ensuring the positioning and stability of the airbag 1, the inner wall size of the sealing ring 5 is adapted to the outer wall size of the connecting pipe 2, the sealing ring 5 is made of nitrile rubber material, one end of the sealing plate 6 is abutted against the end corresponding to the sealing ring 5, and the outer wall size of the sealing plate 6 is adapted to the inner wall size of the sealing groove 4.

[0024] The working principle of the utility model is:

[0025] When it is necessary to fix the connecting tube 2, first press the spring 8 to contract it. During the contraction of the spring 8, the fixing piece 9 will be driven to move. Then the connecting tube 2 and the airbag 1 are plugged in. Then the sealing ring 5 is installed in the sealing groove 4. The sealing ring 5 abuts against the airbag 1, so that the connecting tube 2 and the airbag 1 are sealed. When the connecting tube 2 is plugged in, release the spring 8 so that the spring 8 is reset under the action of the elastic force, and the connecting tube 2 can be fixed by the fixing piece 9.

[0026] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An air bag anti-leakage device for an endotracheal intubation catheter, comprising an air bag (1), characterized in that: One end of the airbag (1) is plugged into a corresponding end of the connecting pipe (2), and both ends of the airbag (1) are provided with sealing rings (3), a sealing groove (4) is provided in the sealing ring (3), a sealing ring (5) is clamped in the sealing groove (4), one end of the sealing ring (5) is in contact with a corresponding end of the airbag (1), and a sealing plate (6) is provided in the sealing groove (4).

2. The endotracheal intubation catheter balloon anti-leakage device according to claim 1, characterized in that: One end of the sealing ring (3) is connected to a corresponding end of the fixing ring (7), two springs (8) are arranged inside the fixing ring (7), and the ends of the two springs (8) that are far away from each other are connected to the inner wall of the same fixing ring (7).

3. The endotracheal intubation catheter balloon anti-leakage device according to claim 2, characterized in that: The opposite ends of the two springs (8) are connected to the sides away from the two fixing members (9) respectively, and the inner wall size of the fixing members (9) is matched with the outer wall size of the connecting pipe (2).

4. The endotracheal intubation catheter balloon anti-leakage device according to claim 1, characterized in that: The other end of the connecting pipe (2) is connected to a corresponding end of the first ball valve (10), and the other end of the first ball valve (10) is connected to a corresponding end of the branch pipe (11).

5. The endotracheal intubation catheter balloon anti-leakage device according to claim 4, characterized in that: The other end of the air bag (1) is connected to a corresponding end of an air intake pipe (12), and the other end of the air intake pipe (12) is connected to an external pipe (14) via a second ball valve (13). Both the first ball valve (10) and the second ball valve (13) are electromagnetic control ball valves.

6. The endotracheal intubation catheter balloon anti-leakage device according to claim 4, characterized in that: The other end of the branch pipe (11) is connected to the outer wall of the conduit (15), and connectors (16) are provided at both ends of the conduit (15).

7. The endotracheal intubation catheter balloon anti-leakage device according to claim 1, characterized in that: The inner wall size of the sealing ring (5) is matched with the outer wall size of the connecting pipe (2), and the sealing ring (5) is made of nitrile rubber material.

8. The endotracheal intubation catheter balloon anti-leakage device according to claim 1, characterized in that: One end of the sealing plate (6) is in contact with a corresponding end of the sealing ring (5), and the outer wall size of the sealing plate (6) is matched with the inner wall size of the sealing groove (4).

Images