Near-end connector of sputum suction tube, sputum suction tube and sputum suction mirror

Abstract

The invention discloses a near-end connector of a sputum suction tube, the sputum suction tube and a sputum suction mirror. A vent hole (30) communicated with the atmosphere is formed in the near-end connector (10), the near-end connector (10) is connected with an extension piece (20) on the outer side of the vent hole (30), the extension piece (20) extends from the vent hole (30) in the length direction of the near-end connector (10), and the extension piece (20) and the outer wall of the near-end connector (10) form an atmosphere channel enabling the vent hole (30) to be communicated with the atmosphere. The atmosphere channel is provided with an atmosphere communication port (50), and the atmosphere communication port (50) is located at the extending tail end of the extending piece (20). The near-end connector of the sputum suction tube can be used in a common sputum suction tube and can also be used in a sputum suction mirror, fingers of medical staff can be prevented from being polluted in the sputum suction process, cross infection is avoided, cost is low, and the near-end connector of the sputum suction tube is suitable for being vigorously popularized and used.

Description

Technical Field

[0001] The present invention relates to the field of medical devices, and particularly to a proximal connector of a sputum aspirator tube, a sputum aspirator tube, and a sputum aspirator scope. Background Art

[0002] A sputum aspirator tube is a medical device used to extract sputum and other secretions from the human airway. The sputum aspirator tube includes a proximal connector and a tube body. The proximal end of the proximal connector is connected to a suction device or a suction connecting tube to form a closed negative pressure system; the distal end of the proximal connector is connected to the tube body, and the distal end of the tube body is inserted into the patient's oral cavity or trachea. Its main function is to remove secretions in the respiratory tract, such as sputum, saliva, blood, etc., by means of negative pressure suction, so as to prevent airway obstruction and restore the patient's respiratory function.

[0003] Most of the proximal connectors of existing sputum aspirator tubes are T-shaped connectors. The T-shaped connector includes a tubular negative pressure nozzle. During use, one end of the negative pressure nozzle is connected to a suction device, the other end of the negative pressure nozzle is connected to the tube body, and an air communication tube communicating with it is also provided on the negative pressure nozzle. When aspirating sputum, medical staff block the orifice of the air communication tube with their thumb, and turn on the suction device to aspirate sputum by means of negative pressure suction; when it is necessary to stop aspirating sputum, the thumb releases the orifice of the air communication tube, and the negative pressure nozzle communicates with the atmosphere through the air communication tube, and at this time, the aspiration of sputum stops.

[0004] The use of such a T-shaped connector directly blocks the orifice of the air communication tube with the thumb of medical staff to aspirate sputum or other secretions of the patient, which has a risk of cross-infection: ① During the aspiration process, sputum or other secretions may splash, splash onto the thumb of medical staff through the orifice of the air communication tube, contaminating the fingers of medical staff. Even if medical staff wear medical gloves, there is still a certain risk of cross-infection; ② During the process of moving the thumb away from the orifice of the air communication tube, the negative pressure suction force on the sputum gradually weakens, and the size of the pipeline is certain. In some cases, the negative pressure suction force on some sputum decreases, causing it to fall back. Due to the posture of holding the proximal connector, the fallen sputum may move to the air communication tube and contaminate the fingers of medical staff; ③ During the aspiration process, some sputum with a larger density and harder that has splashed onto the air communication tube is squeezed towards the orifice of the air communication tube by the less dense sputum that splashes again, and may still contaminate the fingers of medical staff.

[0005] Of course, some T-shaped connectors are also provided with a plunger for closing the air communication tube. When the plunger closes the air communication tube, the negative pressure nozzle can suck the sputum in the patient's respiratory tract, and when the plunger is separated from the air communication tube, the suction of sputum stops. However, in actual use, medical staff usually choose to block the air communication tube with their thumb to make the negative pressure nozzle suck sputum for the sake of operation convenience. Therefore, there is still a risk of cross-infection.

[0006] Therefore, the prior art has at least the following technical problems: When using the proximal connector of the existing sputum suction tube, there is a risk of cross-infection. Summary of the Invention

[0007] The purpose of the present invention is to provide a proximal connector of a sputum suction tube, a sputum suction tube and a sputum suction mirror, so as to solve the technical problem that there is a risk of cross-infection when using the proximal connector of the existing sputum suction tube. The preferred technical solutions provided by the present invention can produce many technical effects, which will be elaborated below.

[0008] To achieve the above purpose, the present invention provides the following technical solutions: In the first aspect, the present invention provides a proximal connector of a sputum suction tube. An air vent communicating with the atmosphere is opened on the proximal connector. An extension piece is connected to the outside of the air vent on the proximal connector. The extension piece extends along the length direction of the proximal connector from the air vent. The extension piece and the outer wall of the proximal connector form an air channel connecting the air vent with the atmosphere. The air channel has an air communication port, and the air communication port is located at the extension end of the extension piece.

[0009] Optionally or preferably, the air vent is located at the distal end of the air channel, and the air communication port is located at the proximal end of the air channel.

[0010] Optionally or preferably, the air communication port is inclined, and the air communication port inclines and descends from the distal end of the proximal connector to the proximal end of the proximal connector.

[0011] Optionally or preferably, the extension piece has a first connection side, a second connection side and a third connection side connected to the outer wall of the proximal connector; Among them, the shape of the first connection side is adapted to the shape of the air vent; the extension piece is connected to the outer edge of the air vent through the first connection side; at the position corresponding to the first connection side of the extension piece, the inner wall of the extension piece is flush with the inner wall of the air vent; The second connection side and the third connection side are respectively connected to both ends of the first connection side. The second connection side and the third connection side are arranged in parallel, and both the second connection side and the third connection side are arranged along the length direction of the proximal connector.

[0012] Optionally or preferably, a blocking protrusion is provided on the inner wall of the extension piece, and the blocking protrusion extends from the second connection edge to the third connection edge; and compared with the ventilation hole, the blocking protrusion is arranged closer to the atmosphere communication port; And / or, the proximal joint sequentially includes a first equal-diameter section, a diameter-expanded section, a second equal-diameter section, a diameter-reduced section, and a third equal-diameter section from its proximal end to its distal end; Wherein, the ventilation hole is arranged on the second equal-diameter section, and the extension piece is connected to the outside of the second equal-diameter section; The first joint is arranged on the first equal-diameter section, and the second joint is arranged on the third equal-diameter section.

[0013] Optionally or preferably, the inner wall edge at the distal end of the ventilation hole and the outer wall edge at the proximal end of the ventilation hole are both located on an oblique line b that intersects the axis of the proximal joint, and the oblique line b intersects the blocking protrusion provided on the extension piece.

[0014] Optionally or preferably, the proximal joint further includes a connecting sleeve and a limiting member for limiting the distal end of the connecting sleeve; Wherein, the connecting sleeve abuts against the first connection edge of the extension piece; or, the connecting sleeve is connected to the first connection edge of the extension piece; The first connection edge, the second connection edge, and the third connection edge of the extension piece are all in sliding fit with the outer wall of the proximal joint, and the first connection edge, the second connection edge, and the third connection edge of the extension piece are all closely attached to the outer wall of the proximal joint; When the connecting sleeve abuts against the first connection edge of the extension piece, the extension piece further includes a collar connected to the first connection edge, the collar is in sliding fit with the outer wall of the proximal joint, and is closely attached to the outer wall of the proximal joint; the connecting sleeve is rotatably connected to the proximal joint, and the connecting sleeve can rotate relative to the extension piece and push the extension piece to linearly move relative to the outer wall of the proximal joint; When the connecting sleeve is connected to the first connection edge of the extension piece, the connecting sleeve is in sliding fit with the outer wall of the proximal joint, and the extension piece can linearly move relative to the outer wall of the proximal joint.

[0015] Optionally or preferably, when the connecting sleeve is in sliding fit with the outer wall of the proximal joint, a circumferentially surrounding groove is provided on the outer wall of the extension piece at one end corresponding to the ventilation hole.

[0016] In a second aspect, a sputum aspirator tube provided by the present invention includes the proximal joint of the sputum aspirator tube described above.

[0017] In a third aspect, a sputum aspirating mirror provided by the present invention includes a handle housing, a sputum aspirator tube, and a visualization lighting module; the sputum aspirator tube includes a tube body and the proximal joint of the sputum aspirator tube described above; The proximal connector is installed inside the handle housing. A window adapted to the extension piece is provided on the handle housing, and the extension piece extends out of the window on the outer side of the handle housing. The visualization and lighting module is disposed at the sealed end of the distal end of the tube body.

[0018] Based on the above technical solutions, the embodiments of the present invention can at least produce the following technical effects: (1) For the proximal connector of the suction tube provided by the present invention, when sucking sputum, after wearing medical gloves, medical staff block the air communication port on the air passage with their fingers (preferably the thumb), and turn on the suction device to suck sputum by negative pressure suction; when it is necessary to stop sucking sputum, the finger releases the air communication port, and the proximal connector communicates with the atmosphere through the air communication port, and at this time, the suction of sputum stops. Since the extension piece in the present application extends along the length direction of the proximal connector from the ventilation hole, the extension piece and the outer wall of the proximal connector form an air passage that communicates the ventilation hole with the atmosphere. The end air communication port of the air passage is located at the extended end of the extension piece. Therefore, the air communication port and the ventilation hole are arranged in a staggered manner. During the process of sucking sputum, due to the staggered arrangement of the air communication port and the ventilation hole, a turning airway is formed. Even if the patient's sputum or other secretions splash from the ventilation hole, it can be avoided as much as possible to reach the position of the air communication port; and during the process of the finger moving away from the air communication port, no matter what posture the medical staff holds the proximal connector, it is difficult for the patient's sputum or other secretions to fall back onto the medical staff's finger from the air communication port; at the same time, due to the staggered arrangement of the air communication port and the ventilation hole, there is enough space between the ventilation hole and the air communication port, so that the sputum with a larger density and harder that splashes onto the inner wall of the extension piece can be pushed by the sputum with a smaller density that splashes again and may fall back into the proximal connector and be sucked out. Coupled with the action of the intake air flow on the sputum, it is very difficult for the sputum to continue to move towards the ventilation hole and is squeezed towards the air communication port to contaminate the medical staff's finger. Therefore, the proximal structure of the suction tube with the above structure can effectively prevent the medical staff's finger from being contaminated by the patient's sputum or other secretions during the process of sucking sputum, thereby avoiding possible cross-infection.

[0019] (2) The proximal connector of the suction tube provided by the present invention can be used in ordinary suction tubes or in suction mirrors. It can not only effectively prevent the medical staff's finger from being contaminated during the process of sucking sputum, effectively avoid such cross-infection, but also has a low cost and is suitable for wide promotion and use. Description of the Drawings

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings required for the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.

[0021] Figure 1 is the schematic structural diagram of Embodiment 1 of the present invention; Figure 2 is Figure 1 the sectional view taken along A-A in; Figure 3 is the schematic structural diagram of Embodiment 2 of the present invention; Figure 4 is the schematic structural diagram of Embodiment 2 from another angle; Figure 5 is Figure 4 the sectional view taken along B-B in; Figure 6 the schematic structural diagram of Embodiment 3 of the present invention; Figure 7 is Figure 6 the enlarged schematic diagram of part D in; Figure 8 is Figure 6 the sectional view taken along C-C in; Figure 9 is Figure 8 the enlarged schematic diagram of part E in; Figure 10 is the schematic structural diagram of the sliding fit between the connecting sleeve and the proximal joint in Embodiment 3 of the present invention; Figure 11 is the positional relationship diagram of the arc-shaped convex strip and the ventilation hole in Embodiment 1 of the present invention; Figure 12 is the schematic structural diagram of Embodiment 4 of the present invention; Figure 13 is the schematic structural diagram of Embodiment 5 of the present invention; Figure 14 is the schematic structural diagram of Embodiment 6 of the present invention; Figure 15 is the schematic structural diagram of Embodiment 7 of the present invention; Figure 16 is the installation schematic diagram of the proximal joint in Embodiment 7 of the present invention.

[0022] In the figure: 10, proximal connector; 101, first connector; 102, second connector; 103, first equal-diameter section; 104, diameter-expanded section; 105, second equal-diameter section; 106, diameter-reduced section; 107, third equal-diameter section; 20, extension piece; 201, first connecting edge; 202, second connecting edge; 203, third connecting edge; 204, blocking protrusion; 30, ventilation hole; 40, groove; 50, atmosphere communication port; 60, connecting sleeve; 70, limiting ring; 80, tube body; 90, handle housing; 100, visualization lighting module; 110, collar. Detailed implementation mode

[0023] To make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. 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 implementation manners obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

[0024] In the present invention, "proximal end" and "distal end" are the near and far positions relative to human operation in the usage environment of this structure, which is convenient for describing the positional relationship between components and is also convenient for understanding; for the same component, "proximal end" and "distal end" are the relative positional relationships of this component, rather than absolute; therefore, it should be understood from the perspective of implementing the principle of the present invention and cannot deviate from the essence of the present invention.

[0025] Embodiment 1: Please refer to Figure 1 、 Figure 2 , a proximal connector of a sputum aspirator tube provided by the present invention, one end of the proximal connector 10 has a first connector 101 for connecting to a negative pressure source, and the other end of the proximal connector 10 has a second connector 102 connected to the tube body 80 of the sputum aspirator tube; a ventilation hole 30 communicating with the atmosphere is opened on the proximal connector 10, and an extension piece 20 is connected to the outside of the ventilation hole 30 on the proximal connector 10. The extension piece 20 extends along the length direction of the proximal connector 10 from the ventilation hole 30. The extension piece 20 and the outer wall of the proximal connector 10 form an atmosphere channel that connects the ventilation hole 30 with the atmosphere. The atmosphere channel has an atmosphere communication port 50, and the atmosphere communication port 50 is located at the extension end of the extension piece 20.

[0026] The proximal joint of the sputum suction tube provided by the present invention, when sucking sputum, the medical staff puts on medical gloves and blocks the atmosphere connection port 50 on the atmosphere channel with the finger (preferably the thumb), and turns on the suction device to suck the sputum by negative pressure suction; when it is necessary to stop sucking sputum, the finger releases the atmosphere connection port 50, and the proximal joint 10 is connected to the atmosphere through the atmosphere connection port 50, and the suction of sputum is stopped at this time. Since the extension piece 20 in the present application extends from the vent 30 along the length direction of the proximal joint 10, the extension piece 20 and the outer wall of the proximal joint 10 constitute an atmosphere channel connecting the vent 30 with the atmosphere, and the atmosphere channel has an atmosphere connection port 50, and the position of the atmosphere connection port 50 is located at the end of the extension piece 20. Therefore, the atmosphere communication port 50 and the vent 30 are offset to form a turning airway. In the process of suctioning sputum, since the atmosphere communication port 50 and the vent 30 are offset, even if the patient's sputum or other secretions splash from the vent 30, they can be avoided as much as possible from reaching the position of the atmosphere communication port 50; and in the process of the finger moving away from the atmosphere communication port 50, no matter how the medical staff holds the proximal connector 10, it is difficult for the patient's sputum or other secretions to fall back from the atmosphere communication port 50 to the medical staff's fingers; at the same time, since the atmosphere communication port 50 and the vent 30 are offset, there is enough space between the vent 30 and the atmosphere communication port 50, so that the sputum with a higher density and harder splashed onto the inner wall of the extension piece 20 may fall back into the proximal connector 10 to be sucked out under the push of the sputum with a lower density splashed again, and the sputum will be affected by the intake airflow, making it difficult for the sputum to continue to move toward the vent 30, and squeeze to the atmosphere communication port 50 to contaminate the fingers of the medical staff. Therefore, the proximal structure of the sputum suction tube with the above structure can effectively prevent the fingers of medical staff from being contaminated by the sputum or other secretions of the patient during the process of suctioning sputum, thereby effectively avoiding possible cross infection. The proximal joint of the sputum suction tube provided by the present invention can be used in an ordinary sputum suction tube or in a sputum suction mirror, which can not only effectively prevent the fingers of medical staff from being contaminated during the process of suctioning sputum, effectively avoiding such cross infection, but also has low cost and is suitable for vigorous promotion and use.

[0027] In some embodiments, the vent 30 is located at the distal end of the atmospheric passage, and the atmospheric communication port 50 is located at the proximal end of the atmospheric passage. It is understandable that the atmospheric communication port 50 is located at the proximal end of the atmospheric passage, that is, at the proximal end of the proximal joint 10. Compared with the existing atmospheric port setting method, it only needs to move the thumb forward and backward to operate, and the action will be more convenient. Of course, the setting direction of the atmospheric passage is not limited by the embodiment of the present application. The atmospheric communication port 50 can also be set at the distal end of the atmospheric passage, and the vent 30 is located at the proximal end of the atmospheric passage; as long as the atmospheric passage can be set outside the vent 30, and the atmospheric communication port 50 is misaligned with the vent 30, that is, the setting position of the atmospheric communication port 50 can avoid the patient's sputum or other secretions from splashing onto the fingers of the medical staff during the suction operation as much as possible, and the setting position of the atmospheric communication port 50 can facilitate the medical staff to block the suction. When using the suction tube, medical staff are accustomed to using the thumb to control the atmospheric communication port 50. Therefore, the atmospheric passage is arranged along the length direction of the proximal connector 10 to facilitate medical personnel to block the atmospheric communication port 50 with their thumb.

[0028] In some embodiments, the atmospheric communication port 50 is tilted, and the atmospheric communication port 50 tilts downward from the distal end of the proximal connector 10 to the proximal end of the proximal connector 10. It is understandable that because medical staff are accustomed to using their thumbs to control the atmospheric communication port 50 when using the suction tube, the atmospheric communication port 50 is tilted to better fit the shape of the thumb so as to better control the opening and closing of the atmospheric communication port 50, and to facilitate blocking. Therefore, the atmospheric communication port 50 is tilted to facilitate medical staff to block with their thumbs. Of course, medical staff can also use other fingers besides the thumb to block the atmospheric communication port 50, as long as it is convenient to block and can achieve a good blocking effect of the atmospheric communication port 50.

[0029] In some embodiments, the extension piece 20 has a first connection edge 201, a second connection edge 202 and a third connection edge 203 connected to the outer wall of the proximal connector 10; The shape of the first connecting edge 201 matches the shape of the vent hole 30; the extension piece 20 is connected to the outer edge of the vent hole 30 through the first connecting edge 201; at the first connecting edge 201 corresponding to the extension piece 20, the inner wall of the extension piece 20 is flush with the inner wall of the vent hole 30; The second connection edge 202 and the third connection edge 203 are connected to the two ends of the first connection edge 201 respectively, and the second connection edge 202 and the third connection edge 203 are arranged in parallel, and the second connection edge 202 and the third connection edge 203 are arranged along the length direction of the proximal connector 10. It can be understood that the shape of the vent 30 can be any shape, such as circular, elliptical, rectangular, etc.; but the first connection edge 201 of the extension sheet 20 needs to be adapted to the shape of the vent 30, and the inner wall of the extension sheet 20 is flush with the inner wall of the vent 30, which can avoid the formation of a step at the connection between the extension sheet 20 and the vent 30, thereby avoiding the accumulation of sputum or other secretions at the connection between the extension sheet 20 and the vent 30 to form pollution.

[0030] In some embodiments, the inner wall of the extension piece 20 is provided with a blocking protrusion 204, and the blocking protrusion 204 extends from the second connection edge 202 to the third connection edge 203; and compared with the vent hole 30, the blocking protrusion is arranged close to the atmosphere communication port 50. It can be understood that the setting of the blocking protrusion 204 can form a narrow part at this position of the atmosphere channel, which can increase the wind speed of the air intake here, and can prevent the patient's sputum or other secretions from splashing further to the outside to a certain extent; and the blocking protrusion 204 itself can also play a role in blocking the patient's sputum or other secretions. The blocking protrusion extends from the second connection edge 202 of the extension piece 20 to the third connection edge 203, which can block the patient's sputum or other secretions in a more comprehensive manner, further preventing the patient's sputum or other secretions from contaminating the fingers of medical staff, thereby trying to avoid the occurrence of such cross infection.

[0031] In some embodiments, the blocking protrusion 204 is an arc-shaped convex strip. It is understood that the shape of the blocking protrusion 204 is not limited by the present application, and the cross-sectional shape of the blocking protrusion 204 can also be a rectangle or other shapes, as long as it forms a narrow part at the position and plays a blocking role.

[0032] See also Figure 11 , the direction of arrow a is the suction direction of sputum, in some embodiments, the inner wall edge of the distal end of the vent hole 30 and the outer wall edge of the proximal end of the vent hole 30 are both located on the oblique line b intersecting with the axis of the proximal connector 10, and the oblique line b intersects with the blocking protrusion provided on the extension sheet 20. For example, along Figure 2 The cutting direction of AA, Figure 4 The cutting direction of the BB and Figure 6 When cutting in the cutting direction of CC, you can see Figure 11As shown in the figure: the inner wall edge at the distal end of the ventilation hole 30 and the outer wall edge at the proximal end of the ventilation hole 30 are both located on the oblique line b that intersects the axis of the proximal joint 10, and the oblique line b intersects the blocking protrusion 204 provided on the extension piece 20. It can be understood that this structure limits the height of the blocking protrusion 204, and to a certain extent, it can prevent sputum or other secretions splashing from the distal end to the proximal end from splashing onto the fingers of medical staff through the ventilation hole 30.

[0033] In some embodiments, the material of the extension piece 20 includes medical polyurethane or medical silicone rubber. It can be understood that the selection of the material of the extension piece 20 needs to have a certain hardness and softness, and at the same time have good elasticity. Before suctioning sputum from the patient, it is necessary to adjust the negative pressure level according to the patient's condition. When adjusting the negative pressure level, the size of the air inlet can be adjusted by blocking part of the air communication port 50, or the edge of the air communication port 50 can be directly squeezed or pressed down to control the size of the air communication port 50, thereby adjusting the size of the air inlet. It is easy to know that by simultaneously blocking the air communication port 50 and deforming the edge of the air communication port 50 by squeezing, the opening size can be adjusted more accurately and finely, and the operability is better. Of course, the materials disclosed in this application are not limited to this application, and the extension piece 20 can also be made of other medical materials that have a certain hardness and softness and at the same time have good elasticity.

[0034] In some embodiments, the material of the extension piece 20 includes medical rigid materials.

[0035] Embodiment 2 Please refer to Figure 3 、 Figure 4 、 Figure 5 In this embodiment, the difference from Embodiment 1 is that: In some embodiments, the proximal joint 10 sequentially includes a first equal-diameter section 103, a diameter-expanded section 104, a second equal-diameter section 105, a diameter-reduced section 106, and a third equal-diameter section 107 from its proximal end to its distal end; Among them, the ventilation hole 30 is provided on the second equal-diameter section 105, and the extension piece 20 is provided on the outside of the second equal-diameter section 105; A first joint 101 connected to a negative pressure source is provided on the first equal-diameter section 103, and a second joint 102 connected to the tube body 80 of the suction tube is provided on the third equal-diameter section 107. It can be understood that the inner diameter of the second equal-diameter section 105 is greater than the inner diameter of the first equal-diameter section 103 and also greater than the inner diameter of the third equal-diameter section 107. By providing the extension piece 20 on the second equal-diameter section 105, the sputum suction effect is better, and at the same time, sputum is less likely to splash out through the ventilation hole 30.

[0036] The rest is the same as Embodiment 1.

[0037] Example 3: Please refer to Figures 6 - 10 , the difference between this embodiment and Embodiment 1 is that: the proximal joint 10 further includes a connecting sleeve 60 and a limiting member for limiting the distal end of the connecting sleeve 60; Wherein, the connecting sleeve 60 abuts against the first connecting edge 201 of the extension piece 20, or the connecting sleeve 60 is connected to the first connecting edge 201 of the extension piece 20; The first connecting edge 201, the second connecting edge 202 and the third connecting edge 203 of the extension piece 20 are all in sliding fit with the outer wall of the proximal joint 10, and the first connecting edge 201, the second connecting edge 202 and the third connecting edge 203 of the extension piece 20 are all closely attached to the outer wall of the proximal joint 10; When the connecting sleeve 60 abuts against the first connecting edge 201 of the extension piece 20, the extension piece 20 further includes a collar 110 connected to the first connecting edge 201, the collar 110 is in sliding fit with the outer wall of the proximal joint 10, and is closely attached to the outer wall of the proximal joint 10; and the first connecting edge 201 of the extension piece 20 is closely attached to the outer wall of the proximal joint 10; the connecting sleeve 60 is rotatably connected to the proximal joint 10, and the connecting sleeve 60 can rotate relative to the extension piece 20 and push the extension piece 20 to move linearly relative to the outer wall of the proximal joint 10; When the connecting sleeve 60 is connected to the first connecting edge 201 of the extension piece 20, the connecting sleeve 60 is in sliding fit with the outer wall of the proximal joint 10, and the extension piece 20 can move linearly relative to the outer wall of the proximal joint 10. It can be understood that whether the connecting sleeve 60 abuts against the first connecting edge 201 of the extension piece 20 or the connecting sleeve 60 is connected to the first connecting edge 201 of the extension piece 20, the effect to be achieved is to enable the extension piece 20 to move linearly relative to the outer wall of the proximal joint 10, thereby adjusting the opening degree of the vent hole 30 and adjusting the maximum negative pressure level according to the patient's condition.

[0038] In some embodiments, when the connecting sleeve 60 abuts against the first connecting edge 201 of the extension piece 20, the provided collar 110 and the extension piece 20 are of an integral structure, and of course, they may not be of an integral structure.

[0039] In some embodiments, when the connecting sleeve 60 is connected to the first connecting edge 201 of the extension piece 20, the connecting sleeve 60 and the extension piece 20 are of an integral structure, and of course, they may not be of an integral structure.

[0040] In some embodiments, a circumferentially surrounding groove 40 is formed in the outer wall of one end of the extension piece 20 corresponding to the ventilation hole 30; alternatively, a groove 40 is formed at the connection between the connecting sleeve 60 connected to the outer wall of the extension piece 20 and the extension piece 20. It can be understood that the setting of the groove 40 constitutes a weak deformation part of the extension piece 20. When the finger blocks the atmosphere communication port 50, the finger has a slight pushing force on the extension piece 20. This slight pushing force can make the atmosphere communication port 50 blocked more tightly, and at the same time, the groove 40 can undergo slight deformation. However, even if the connecting sleeve 60 and the proximal joint 10 are in sliding fit, this slight pushing force will not cause the connecting sleeve 60 and the extension piece 20 to move backward toward the proximal joint 10, will not change the opening degree of the ventilation hole 30, and the set weak deformation part will not affect the forward movement of the connecting sleeve 60 toward the proximal joint 10.

[0041] In some embodiments, the groove 40 is a V-shaped groove, an arc-shaped groove or a rectangular groove. It can be understood that the shape of the groove 40 is not limited by this application. As long as the groove 40 can form a weak deformation part, when the finger blocks the atmosphere communication port 50, the finger has a slight pushing force on the extension piece 20. This slight pushing force can make the atmosphere communication port 50 blocked more tightly, and at the same time, the groove 40 can undergo slight deformation. However, even if the connecting sleeve 60 and the proximal joint 10 are in sliding fit, this slight pushing force will not cause the connecting sleeve 60 and the extension piece 20 to move backward toward the proximal joint 10, will not change the opening degree of the ventilation hole 30, and the set weak deformation part will not affect the forward movement of the connecting sleeve 60 toward the proximal joint 10.

[0042] In this embodiment, the specific adjustment method for the opening degree of the ventilation hole 30 is as follows: ① When the connecting sleeve 60 and the outer wall of the proximal joint 10 are in sliding fit, the medical staff slides the connecting sleeve 60 on the proximal joint 10. The connecting sleeve 60 can cover part of the ventilation hole 30, control the size of the ventilation hole 30, and thus can effectively adjust the negative pressure, avoid airway damage and ensure the sputum suction effect.

[0043] ② When the connecting sleeve 60 is threadedly connected to the proximal joint 10, the medical staff can rotate the connecting sleeve 60 to make the connecting sleeve 60 move relative to the proximal joint 10. However, it should be noted that during the rotation of the connecting sleeve 60, when the connecting sleeve 60 rotates to a suitable position, the extension piece 20 needs to completely cover the ventilation hole 30. When the connecting sleeve 60 moves toward the proximal end of the proximal joint 10, the connecting sleeve 60 can cover part of the ventilation hole 30, adjust the size of the ventilation hole 30, and thus can effectively adjust the negative pressure, avoid airway damage and ensure the sputum suction effect.

[0044] In some embodiments, the limiting member is a limiting ring 70 sleeved on the proximal connector 10. The position where the limiting ring 70 is provided is the position where the opening degree of the ventilation hole 30 is the largest. When the connecting sleeve 60 abuts against the limiting ring 70, the connecting sleeve 60 is limited by the limiting ring 70. At this time, the inner wall of the extension piece 20 is flush with the inner wall of the ventilation hole 30, which can prevent sputum or other secretions splashed by the patient from falling here and causing contamination.

[0045] Others are the same as in Embodiment 1.

[0046] Embodiment 4: Please refer to Figure 12 , the present invention provides a sputum suction tube, which includes a tube body 80 and the proximal connector of the sputum suction tube in Embodiment 1.

[0047] For the sputum suction tube provided by the present invention and the proximal connector of the sputum suction tube provided by the present invention, when sucking sputum, after wearing medical gloves, medical staff block the air communication port 50 on the air passage with their fingers (preferably the thumb), and turn on the suction device to suck sputum by means of negative pressure suction; when it is necessary to stop sucking sputum, the thumb releases the air communication port 50, and the proximal connector 10 communicates with the atmosphere through the air communication port 50, and at this time, the suction of sputum stops. Since the extension piece 20 in the present application extends along the length direction of the proximal connector 10 from the ventilation hole 30, the extension piece 20 and the outer wall of the proximal connector 10 form an air passage for the ventilation hole 30 to communicate with the atmosphere. The air passage has an air communication port 50, and the air communication port 50 is located at the extension end of the extension piece 20. Therefore, the air communication port 50 and the ventilation hole 30 are arranged in a staggered manner, forming a turning airway. During the process of sucking sputum, due to the staggered arrangement of the air communication port 50 and the ventilation hole 30, even if the sputum or other secretions of the patient splash from the ventilation hole 30, it can be avoided as much as possible to reach the position of the air communication port 50; and during the process of the finger moving away from the air communication port 50, no matter what posture the medical staff holds the proximal connector 10, it is difficult for the sputum or other secretions of the patient to fall back onto the fingers of the medical staff from the air communication port 50; at the same time, due to the staggered arrangement of the air communication port 50 and the ventilation hole 30, there is enough space between the ventilation hole 30 and the air communication port 50, so that the sputum with a higher density and harder on the inner wall of the extension piece 20 splashed by the sputum with a lower density that splashes again may fall back into the proximal connector 10 and be sucked and discharged. Coupled with the action of the intake air flow on the sputum, it is very difficult for the sputum to continue to move towards the ventilation hole 30 and is squeezed towards the air communication port 50 to contaminate the fingers of the medical staff, which can effectively prevent the fingers of the medical staff from being contaminated by the sputum or other secretions of the patient during the process of sucking sputum, and thus effectively avoid possible cross-infection.

[0048] Embodiment 5: Please refer to Figure 13, the difference between this embodiment and Embodiment 1 is that the proximal connector 10 adopted is the proximal connector of the suction tube in Embodiment 2.

[0049] Others are the same as Embodiment 4.

[0050] Embodiment 6: Please refer to Figure 14 , the difference between this embodiment and Embodiment 1 is that the proximal connector 10 adopted is the proximal connector of the suction tube in Embodiment 3.

[0051] Others are the same as Embodiment 4.

[0052] Embodiment 7: Please refer to Figures 15 - 16 , the present invention provides a sputum suction scope, including a handle housing 90, a suction tube, and a visualization lighting module 100. The suction tube includes a tube body 80 and the proximal connector 10 in the above-mentioned Embodiment 2; the proximal connector 10 is installed in the handle housing 90, a window adapted to the extension piece 20 is opened on the handle housing 90, and the extension piece 20 extends out of the window of the handle housing 90; the visualization lighting module 100 is arranged at the sealed end of the distal end of the tube body 80. It can be understood that by setting the window and the extension piece 20 extending out of the window, without changing the radial dimension of the existing handle housing 90, that is, without changing the holding feeling of the existing sputum suction scope, the inner diameter dimension of the proximal connector 10 can be made larger, creating a large channel, improving the sputum suction effect, and at the same time, it is more difficult for sputum to splash out from the ventilation hole 30.

[0053] The sputum suction mirror provided by the present invention, when sucking sputum, after wearing medical gloves, medical staff block the air connection port 50 on the air passage with a finger (preferably the thumb), and turn on the suction device to suck sputum by means of negative pressure suction; when it is necessary to stop sucking sputum, the finger releases the air connection port 50, and the proximal joint 10 is connected to the atmosphere through the air connection port 50, and at this time, the suction of sputum stops. During the process of sucking sputum, since the air connection port 50 of the proximal joint 10 and the ventilation hole 30 are arranged in a dislocation manner, even if the sputum or other secretions of the patient splash from the ventilation hole 30, it can effectively prevent them from reaching the position of the air connection port 50; and during the process of the finger moving away from the air connection port 50, no matter what posture the medical staff holds the handle housing 90 outside the proximal joint 10, it is difficult for the sputum or other secretions of the patient to fall back onto the finger of the medical staff from the air connection port 50; at the same time, due to the dislocation arrangement of the air connection port 50 and the ventilation hole 30, there is enough space between the ventilation hole 30 and the air connection port 50, so that the sputum with a higher density and harder texture splashing onto the inner wall of the extension piece 20 may fall back into the proximal joint 10 and be sucked and discharged under the push of the sputum with a smaller density that splashes again. Coupled with the action of the intake air flow on the sputum, it is very difficult for the sputum to continue to move towards the ventilation hole 30 and be squeezed towards the air connection port 50 to contaminate the finger of the medical staff, which can effectively prevent the finger of the medical staff from being contaminated by the sputum or other secretions of the patient during the process of sucking sputum, and further effectively avoid possible cross-infection.

[0054] In some embodiments, the proximal joint 10 adopted is the proximal joint 10 in the above-mentioned embodiment 1.

[0055] In some embodiments, the proximal joint 10 adopted is the proximal joint 10 in the above-mentioned embodiment 3.

[0056] In some embodiments, the visualization lighting module 100 includes a light source and a lens. The light source can be an optical fiber or an LED, and the lens includes a lens group and an image sensor CMOS or CCD. The visualization lighting module 100 is used to obtain the image information on the distal side of the tube body 80 and transmit it to the display device at the proximal end, so that medical staff can observe the situation at the distal end of the tube body 80 from the display device, thereby performing sputum suction work. The handle housing 90 and the visualization lighting module 100 are both prior arts and will not be elaborated here.

[0057] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, which should all be covered within the protection scope of the present invention.

Claims

1. The proximal connector of a sputum aspirator tube, characterized in that, The proximal connector (10) is provided with a ventilation hole (30) communicating with the atmosphere. An extension piece (20) is connected to the outside of the ventilation hole (30) of the proximal connector (10). The extension piece (20) extends along the length direction of the proximal connector (10) from the ventilation hole (30). The extension piece (20) and the outer wall of the proximal connector (10) form an atmosphere channel that communicates the ventilation hole (30) with the atmosphere. The atmosphere channel has an atmosphere communication port (50), and the atmosphere communication port (50) is located at the extension end of the extension piece (20).

2. The proximal connector of the sputum aspirator tube according to claim 1, characterized in that, The ventilation hole (30) is located at the distal end of the atmosphere channel, and the atmosphere communication port (50) is located at the proximal end of the atmosphere channel.

3. The proximal connector of the sputum aspirator tube according to claim 2, characterized in that, The atmosphere communication port (50) is inclined, and the atmosphere communication port (50) inclines and descends from the distal end of the proximal connector (10) to the proximal end of the proximal connector (10).

4. The proximal connector of the sputum aspirator tube according to claim 3, characterized in that, The extension piece (20) has a first connection edge (201), a second connection edge (202), and a third connection edge (203) connected to the outer wall of the proximal connector (10); Among them, the shape of the first connection edge (201) is adapted to the shape of the ventilation hole (30); the extension piece (20) is connected to the outer edge of the ventilation hole (30) through the first connection edge (201); at the position corresponding to the first connection edge (201) of the extension piece (20), the inner wall of the extension piece (20) is flush with the inner wall of the ventilation hole (30); The second connection edge (202) and the third connection edge (203) are respectively connected to both ends of the first connection edge (201). The second connection edge (202) and the third connection edge (203) are arranged in parallel, and both the second connection edge (202) and the third connection edge (203) are arranged along the length direction of the proximal connector (10).

5. The proximal connector of the sputum aspirator tube according to claim 4, characterized in that, The inner wall of the extension piece (20) is provided with a blocking protrusion (204). The blocking protrusion (204) extends from the second connection edge (202) to the third connection edge (203); and compared with the ventilation hole (30), the blocking protrusion (204) is arranged closer to the atmosphere communication port (50); and / or, the proximal connector (10) includes a first equal-diameter section (103), an expanded-diameter section (104), a second equal-diameter section (105), a reduced-diameter section (106), and a third equal-diameter section (107) connected in sequence from its proximal end to its distal end; Among them, the ventilation hole (30) is arranged on the second equal-diameter section (105), and the extension piece (20) is connected to the outside of the second equal-diameter section (105); One end of the proximal connector (10) has a first connector (101) for connecting to a negative pressure source, and the other end of the proximal connector (10) has a second connector (102) connected to the tube body (80) of the suction tube; the first connector (101) is arranged on the first equal-diameter section (103), and the second connector (102) is arranged on the third equal-diameter section (107).

6. The proximal connector of the suction tube according to claim 5, characterized in that, The inner wall edge at the distal end of the ventilation hole (30) and the outer wall edge at the proximal end of the ventilation hole (30) are both located on an oblique line b that intersects the axis of the proximal connector (10), and the oblique line b intersects the blocking protrusion provided on the extension piece (20).

7. The proximal connector of the sputum aspirator tube according to claim 6, characterized in that, The proximal connector (10) further includes a connecting sleeve (60) and a limiting member for limiting the distal end of the connecting sleeve (60); Wherein, the connecting sleeve (60) abuts against the first connecting edge (201) of the extension piece (20); or, the connecting sleeve (60) is connected to the first connecting edge (201) of the extension piece (20); The first connecting edge (201), the second connecting edge (202) and the third connecting edge (203) of the extension piece (20) are all in sliding fit with the outer wall of the proximal connector (10), and the first connecting edge (201), the second connecting edge (202) and the third connecting edge (203) of the extension piece (20) are all closely attached to the outer wall of the proximal connector (10); When the connecting sleeve (60) abuts against the first connecting edge (201) of the extension piece (20), the extension piece (20) further includes a collar (110) connected to the first connecting edge (201), the collar (110) is in sliding fit with the outer wall of the proximal connector (10), and is closely attached to the outer wall of the proximal connector (10); the connecting sleeve (60) is rotatably connected to the proximal connector (10), and the connecting sleeve (60) can rotate relative to the extension piece (20) and push the extension piece (20) to move linearly relative to the outer wall of the proximal connector (10); When the connecting sleeve (60) is connected to the first connecting edge (201) of the extension piece (20), the connecting sleeve (60) is in sliding fit with the outer wall of the proximal connector (10), and the extension piece (20) can move linearly relative to the outer wall of the proximal connector (10).

8. The proximal connector of the sputum suction tube according to claim 7, characterized in that, When the connecting sleeve (60) is in sliding fit with the outer wall of the proximal connector (10), a circumferentially surrounding groove (40) is provided on the outer wall of the extension piece (20) at one end corresponding to the ventilation hole (30).

9. A sputum aspirator tube, characterized in that, It includes the proximal connector of the suction tube according to any one of claims 1-8.

10. A sputum aspirating mirror, comprising a handle housing (90), a sputum aspirating tube, and a visualization illumination module (100); characterized in that, The suction tube includes a tube body (80) and the proximal connector of the suction tube according to any one of claims 1-8; The proximal connector (10) is installed in the handle housing (90), a window adapted to the extension piece (20) is provided on the handle housing (90), and the extension piece (20) extends out of the window of the handle housing (90); The visual illumination module (100) is provided at the sealed end of the distal end of the tube body (80).

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