Low-cost lossless sputum suction tube

Abstract

The utility model provides a low-cost lossless sputum suction catheter which comprises a catheter body, a sputum suction groove is formed in the outer wall of the catheter body, a suction opening communicated to the interior of the catheter body is formed in the sputum suction groove, a flow guide groove is formed in the inner wall of the catheter body, and the flow guide groove and the sputum suction groove both extend linearly in the axial direction of the catheter body. The length of the flow guide groove, the length of the sputum suction groove and the length of the tube body are the same, the flow guide groove and the sputum suction groove are correspondingly staggered in the radial direction of the tube body, and the sputum suction groove and the flow guide groove at least account for one third of the thickness of the tube wall of the tube body. According to the sputum suction tube shell, damage to the inner wall of an organ or tissue in the suction process is reduced, under the condition that the diameter of the tube body is the same, the wall thickness is reduced, an inner cavity is enlarged, the effective space of the sputum suction tube is greatly utilized, the drainage efficiency is improved, the lossless sputum suction tube can be integrally formed through a tube drawing process in cooperation with a mold, and the production cost is reduced. The manufacturing process steps are simpler, and the manufacturing cost is greatly reduced.

Description

Technical Field

[0001] This application relates to the technical field of medical devices, and particularly to a low-cost non-destructive sputum aspirator tube. Background Art

[0002] Conventional sputum aspirator tubes in the past had a simple structure, mostly being hollow plastic (silicone) tubes with the suction port directly opened on the outer wall. The outer wall suction port might fit against the organ or tissue wall. At this time, not only was the suction efficiency low, but the relatively large suction force might damage the inner wall structure of the organ or tissue.

[0003] Based on this, some new types of sputum aspirator tubes have emerged in the existing designs. For example, the Chinese utility model patent with the application number 201920543261.6 discloses a suction tube, which includes a hollow suction tube body. The suction tube body has a suction end, and the outer wall of the suction end of the suction tube body is recessed inward to form a recessed structure. A suction port communicating with the inside of the suction tube body is provided in the recessed area of the recessed structure, and the plane where the suction port is located is not in the same plane as the outer surface of the suction tube body. This structure can avoid the direct contact between the suction port and the tissue, and avoid the damage caused by the suction of negative pressure on the tissue. However, this structure inevitably increases the wall thickness of the sputum aspirator tube. With the same outer diameter, the inner diameter of the sputum aspirator tube will be reduced compared to the conventional circular tube-shaped sputum aspirator tube, affecting the suction efficiency. Summary of the Utility Model

[0004] The purpose of this application is to provide a low-cost non-destructive sputum aspirator tube to solve the disadvantages and deficiencies in the prior art.

[0005] A low-cost non-destructive sputum aspirator tube of this application includes: a tube body. A sputum suction groove is provided on the outer wall of the tube body, and a suction port communicating with the inside of the tube body is provided in the sputum suction groove. A diversion groove is provided on the inner wall of the tube body. Both the diversion groove and the sputum suction groove extend linearly along the axial direction of the tube body, and the lengths of the diversion groove, the sputum suction groove, and the tube body are the same. In the radial direction of the tube body, the diversion groove and the sputum suction groove are correspondingly offset. The sputum suction groove and the diversion groove at least account for one-third of the wall thickness of the tube body.

[0006] In a preferred or alternative embodiment, the head of the tube body is set to a hemispherical or blunt-headed structure.

[0007] In a preferred or alternative embodiment, a hydrophilic lubricating coating is provided on the outer wall of the tube body.

[0008] In a preferred or alternative embodiment, a scale area arranged along the axial direction of the tube body is provided on the outer wall of the tube body.

[0009] In a preferred or alternative embodiment, an oxygen supply channel is provided in the tube wall of the tube body, and an oxygen outlet communicating with the oxygen supply channel is provided on the outer wall of the tube body.

[0010] In a preferred or alternative embodiment, a humidification channel is provided in the tube wall of the tube body, and an air outlet communicating with the humidification channel is provided on the outer wall of the tube body.

[0011] In a preferred or alternative embodiment, the intersection of the sputum suction groove and the outer wall of the tube body is a rounded corner.

[0012] In a preferred or alternative embodiment, both the inner and outer walls of the tube head of the tube body are rounded corners.

[0013] In a preferred or alternative embodiment, the suction port is a circular hole, an oval hole or a square hole.

[0014] In a preferred or alternative embodiment, the sputum suction groove and the diversion groove account for one half of the wall thickness of the tube body.

[0015] The sputum suction tube of the embodiment of the present application has the following beneficial effects:

[0016] (1) During suction or drainage, the outer wall of the tube body of the sputum suction tube contacts the inner wall of the organ or tissue, and the suction port opened in the sputum suction groove does not directly contact the inner wall of the organ or tissue. The target drainage fluid (blood, sputum, gastric juice) will stay in the sputum suction groove and then be sucked into the tube body through the suction port. This can avoid the suction port fitting with the inner wall of the organ or tissue, reduce the damage to the inner wall of the organ or tissue during suction, and at the same time, larger blood clots cannot flow into the sputum suction groove, avoiding the blockage of the suction port of the tube body, and greatly improving the suction efficiency.

[0017] (2) A diversion groove is provided on the inner wall of the tube body, and in the radial direction of the tube body, the diversion groove is correspondingly offset from the sputum suction groove. In this way, when the diameter of the tube body is the same, the wall thickness is reduced and the inner cavity becomes larger, greatly making use of the effective space of the sputum suction tube and improving the drainage efficiency.

[0018] (3) Both the diversion groove and the sputum suction groove extend linearly along the axial direction of the tube body, that is, both the diversion groove and the sputum suction groove are straight grooves, and the lengths of the diversion groove, the sputum suction groove and the tube body are the same. The non-destructive sputum suction tube designed in this way can be integrally formed by a tube-pulling process in cooperation with a mold, and the manufacturing process steps are simpler, greatly reducing the manufacturing cost, so that the cost of the sputum suction tube is low;

[0019] (4) The sputum suction groove and the diversion groove account for at least one third of the wall thickness of the tube body, so that the space of the tube body can be fully utilized, materials can be saved and the suction efficiency can be improved.

[0020] For better understanding and implementation, the present application will be described in detail below with reference to the accompanying drawings. Description of the Drawings

[0021] Figure 1 It is a schematic partial structure diagram of a sputum suction tube in an embodiment of the present application;

[0022] Figure 2 It is a schematic axial structure diagram of a sputum suction tube in an embodiment of the present application;

[0023] Figure 3 It is a schematic structure diagram of a sputum suction tube in another embodiment of the present application;

[0024] Figure 4 It is a schematic cross-sectional structure diagram of a sputum suction tube in another embodiment of the present application;

[0025] Reference Signs:

[0026] 1, tube body; 2, sputum suction groove; 3, suction port; 4, diversion groove; 5, oxygen supply channel; 51, oxygen outlet; 6, humidification channel; 61, air outlet. Detailed Embodiments

[0027] Next, the technical solutions in the embodiments of the present application will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0028] It should be understood that in the description of the present application, the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present application. The terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features, that is, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In addition, unless otherwise specified, the meaning of "plurality" is two or more.

[0029] It should be noted that in the description of this application, unless otherwise clearly specified and limited, the terms "set", "connected", "connected to", and "hollow" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific situations.

[0030] Please refer to Figures 1 to 2 , a low-cost non-destructive sputum suction tube provided in this embodiment includes a tube body 1. An aspiration groove 2 is provided on the outer wall of the tube body 1. An aspiration port 3 communicating with the inside of the tube body 1 is provided in the aspiration groove 2. A diversion groove 4 is provided on the inner wall of the tube body 1. Both the diversion groove 4 and the aspiration groove 2 extend linearly along the axial direction of the tube body 1, and the lengths of the diversion groove 4, the aspiration groove 2, and the tube body 1 are the same. In the radial direction of the tube body 1, the diversion groove 4 is correspondingly offset from the aspiration groove 2. The aspiration groove 2 and the diversion groove 4 at least account for one-third of the wall thickness of the tube body 1.

[0031] With the above settings, the sputum suction tube of this embodiment has the following beneficial effects:

[0032] (1) During the aspiration or drainage process, the outer wall of the tube body 1 of the sputum suction tube contacts the inner wall of the organ or tissue, and the aspiration port 3 provided in the aspiration groove 2 does not directly contact the inner wall of the organ or tissue. The target drainage fluid (blood, sputum, gastric juice) will stay in the aspiration groove 2 and then be aspirated into the tube body 1 through the aspiration port 3. This can avoid the aspiration port 3 from fitting against the inner wall of the organ or tissue, reduce the damage to the inner wall of the organ or tissue during aspiration, and at the same time, larger blood clots cannot flow into the aspiration groove 2, avoiding the blockage of the aspiration port 3 of the tube body 1, and greatly improving the aspiration efficiency.

[0033] (2) A diversion groove 4 is provided on the inner wall of the tube body 1, and in the radial direction of the tube body 1, the diversion groove 4 is correspondingly offset from the aspiration groove 2. In this way, when the diameter of the tube body 1 is the same, the wall thickness is reduced and the inner cavity becomes larger, greatly making use of the effective space of the sputum suction tube and improving the drainage efficiency.

[0034] (3) Both the diversion groove 4 and the aspiration groove 2 extend linearly along the axial direction of the tube body 1, that is, both the diversion groove 4 and the aspiration groove 2 are straight grooves, and the lengths of the diversion groove 4, the aspiration groove 2, and the tube body 1 are the same. The non-destructive sputum suction tube designed in this way can be integrally formed through a tube-pulling process in cooperation with a mold, and the manufacturing process steps are simpler, greatly reducing the manufacturing cost, so that the cost of the sputum suction tube is low;

[0035] (4) The sputum suction groove 2 and the diversion groove 4 each account for at least one-third of the wall thickness of the tube body 1, so that the space of the tube body 1 can be fully utilized, materials can be saved, and the suction efficiency can be improved.

[0036] An opening is provided at the head of the tube body 1 of the sputum suction tube, and the tail can be connected to a suction device. When in use, the head of the tube body 1 is inserted into the respiratory tract of the patient, and the suction device is turned on to perform sputum suction work.

[0037] To avoid damaging the respiratory mucosa when the non-destructive sputum suction tube enters the respiratory tract, as Figure 3 shown, preferably, in some embodiments, the head of the tube body 1 is provided with a hemispherical or blunt-headed structure. In this way, the head of the tube body 1 can be prevented from damaging the respiratory mucosa.

[0038] To reduce the friction coefficient of the non-destructive sputum suction tube entering the respiratory tract, preferably, in this embodiment, a hydrophilic lubricating coating is provided on the outer wall of the tube body 1. In this way, the friction force of inserting the non-destructive sputum suction tube can be reduced, the lubricating effect can be increased, the discomfort of the tissue can be reduced, and the damage can be reduced. The hydrophilic lubricating coating is a polymer cross-linked network film formed by combining biocompatible hydrophilic polymers (such as polyacrylamide and polyvinylpyrrolidone) onto the surface of medical device products through specific coating processes (such as dip coating and spraying) and curing processes (such as UV curing and thermal curing).

[0039] To clarify the length of the non-destructive sputum suction tube entering the respiratory tract, preferably, a scale area arranged along the axial direction of the tube body 1 is provided on the outer wall of the tube body 1, and the length of the non-destructive sputum suction tube entering the respiratory tract can be read through the scales on the scale area.

[0040] Preferably, the intersection of the sputum suction groove 2 and the outer wall of the tube body 1 is rounded, and both the inner and outer walls of the tube body 1 at the head are rounded. Thus, by adopting a rounded design, the damage of the sputum suction tube to the respiratory tract can be further reduced, and the use safety can be improved.

[0041] As a preferred implementation manner, the suction port 3 can be provided in different shapes, such as common round holes, oval holes or square holes. In this embodiment, the suction port 3 is provided as an oblong circular hole. Of course, the shape of the suction port 3 can also be hexagonal, triangular or other shapes, which are selected according to the actual situation.

[0042] Specifically, in this embodiment, the sputum suction groove 2 and the diversion groove 4 each account for one-half of the wall thickness of the tube body 1, which can ensure both the strength of the tube body 1 and the suction efficiency.

[0043] Such as Figure 4As shown, preferably, in some embodiments, an oxygen supply channel 5 is provided in the tube wall of the tube body 1, and an oxygen outlet 51 communicating with the oxygen supply channel 5 is provided on the outer wall of the tube body 1. Oxygen can be supplied to the oxygen supply channel 5 through an external device, and the oxygen is output from the oxygen outlet 51. In this way, a certain amount of oxygen can be supplemented while suctioning sputum, avoiding the occurrence of hypoxia.

[0044] Preferably, in some embodiments, a humidification channel 6 is provided in the tube wall of the tube body 1, and an air outlet 61 communicating with the humidification channel 6 is provided on the outer wall of the tube body 1. Mist can be supplied to the humidification channel 6 through an external device, and the mist is output from the air outlet 61. In this way, the airway can be humidified while suctioning sputum.

[0045] The above embodiments only represent several implementation manners of the present application, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation on the patent scope of the present application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several deformations and improvements can still be made, and these all belong to the protection scope of the present application.

Claims

1. A low-cost non-destructive sputum aspirator tube, characterized in that, Comprising: A tube body, on the outer wall of which there is a sputum suction groove, inside which there is a suction port communicating with the inside of the tube body, on the inner wall of which there is a diversion groove, both the diversion groove and the sputum suction groove extend linearly along the axial direction of the tube body, and the lengths of the diversion groove, the sputum suction groove and the tube body are the same. In the radial direction of the tube body, the diversion groove and the sputum suction groove are correspondingly offset. The sputum suction groove and the diversion groove account for at least one-third of the wall thickness of the tube body.

2. The low-cost non-destructive sputum suction tube according to claim 1, wherein: The head of the tube body is arranged in a hemispherical or blunt head structure.

3. The low-cost non-destructive sputum suction tube according to claim 1, wherein: The outer wall of the tube body is provided with a hydrophilic lubricating coating.

4. The low-cost non-destructive sputum suction tube according to claim 1, wherein: The outer wall of the tube body is provided with a scale area arranged along the axial direction of the tube body.

5. The low-cost non-destructive sputum suction tube according to claim 1, wherein: An oxygen supply channel is arranged in the wall of the tube body, and an oxygen outlet communicating with the oxygen supply channel is arranged on the outer wall of the tube body.

6. The low-cost non-destructive sputum suction tube according to claim 5, wherein: A humidifying channel is arranged in the wall of the tube body, and an air outlet communicating with the humidifying channel is arranged on the outer wall of the tube body.

7. The low-cost non-destructive sputum suction tube according to claim 1, wherein: The intersection of the sputum suction groove and the outer wall of the tube body is rounded.

8. The low-cost non-destructive sputum suction tube according to claim 1, wherein: Both the inner and outer walls of the head of the tube body are rounded.

9. The low-cost non-destructive sputum suction tube according to any one of claims 1-8, wherein: The suction port is a round hole, an oval hole or a square hole.

10. The low-cost non-destructive sputum suction tube according to claim 9, characterized in that: The sputum suction groove and the diversion groove account for one-half of the wall thickness of the tube body.

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