Sputum collector capable of switching sputum suction and sputum collection

Abstract

The utility model provides a sputum collector capable of switching sputum suction and sputum collection, which comprises a sputum collection cup for collecting sputum, and further comprises a negative pressure end hose and a suction end hose which are respectively communicated with the sputum collection cup, a downstream port of the negative pressure end hose is connected with a negative pressure generator; a communicating hose is arranged at the part, positioned outside the sputum collecting cup, between the negative pressure end hose and the suction end hose, and is used for communicating the negative pressure end hose with the suction end hose; a three-way switching valve is arranged at the joint of the suction end hose and the communicating hose and used for controlling and switching the suction end hose to be communicated with the sputum collecting cup or the communicating hose; a negative pressure valve is installed on the downstream pipe wall of the communicating position of the negative pressure end hose and the communicating hose. Before collection, the three-way switching valve is firstly switched to be communicated with the communication hose to directly suck secretions in the nasopharyngeal cavity of the suction end hose from the negative pressure end hose; during collection, the three-way switching valve switches the suction end hose to be communicated with the sputum collection cup, and replacement of the sputum collector is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a sputum collector capable of switching between sputum suction and sputum collection. Background Art

[0002] In clinical work, a sputum collector is required to collect sputum from patients. One end of the collector is connected to a negative pressure suction machine, and the other end is connected to a suction tube or a fiber bronchoscope. The negative pressure is used to suck the sputum in the patient's trachea into the sputum collector, thereby collecting the sputum for sputum testing and culture.

[0003] The existing sputum collection method is to use a suction tube or fiber bronchoscope to clear the secretions in the oropharynx before collection, and then replace the sputum collector to suction and collect deep secretions. If the quality of the secretions is poor during the collection process, it will be necessary to remove the poor quality secretions. This requires removing the sputum collector and using the suction tube to clear the secretions in the oropharynx again. At this time, the sputum collector is placed on the bed, bedside table, etc. The suction end hose on it will touch the bed sheet and be contaminated with bacteria. When it is extended into the oropharynx, it will come into contact with the secretions and contaminate the specimen. Therefore, in order to avoid unqualified specimens, a new sputum collector needs to be replaced to retain the specimen for inspection. This process will lead to an increase in manpower and material resources, and also further increase the risk of cross infection. Utility Model Content

[0004] In order to solve the above problems, the purpose of the present invention is to provide a sputum collector that can switch between suctioning and collecting sputum.

[0005] The utility model is achieved by the following method: a sputum collector capable of switching between suctioning and collecting sputum, comprising a sputum collecting cup for collecting sputum, and also comprising a negative pressure end hose and a suction end hose respectively connected to the sputum collecting cup, the downstream port of the negative pressure end hose being connected to a negative pressure generator, a connecting hose being provided at a portion between the negative pressure end hose and the suction end hose located outside the sputum collecting cup, the connecting hose being used to connect the negative pressure end hose and the suction end hose; a three-way switching valve being provided at the connection between the suction end hose and the connecting hose, for controlling switching of the suction end hose to connect to the sputum collecting cup or to connect to the connecting hose; a negative pressure valve being installed on the downstream pipe wall of the position where the negative pressure end hose and the connecting hose are connected.

[0006] Preferably, the cup bottom sleeve of the sputum collecting cup is provided with a detachable cup seat cap, the inner diameter of the cup seat cap matches the outer diameter of the top of the sputum collecting cup, or the outer diameter of the cup seat cap matches the inner diameter of the top of the sputum collecting cup.

[0007] Preferably, the top of the sputum collecting cup is provided with a first thread, and the cup seat cap is provided with a matching second thread, and the first thread and the second thread cooperate to screw the cup seat cap onto the top of the sputum collecting cup.

[0008] Preferably, the negative pressure valve is provided with a negative pressure valve cap, and the negative pressure valve cap is connected to the pressure relief port of the negative pressure valve.

[0009] Preferably, a soft rope is connected between the negative pressure valve cover cap and the valve body of the negative pressure valve.

[0010] Preferably, the upstream port of the suction end hose is connected to a suction head or a fiber bronchoscope connector.

[0011] Preferably, scale lines are provided on the wall of the sputum collecting cup.

[0012] Preferably, a detachable cup cover is provided at the mouth of the sputum collecting cup, and an inlet hole and an outlet hole are provided on the cup cover. The suction end hose is plugged into the inlet hole, and the negative pressure end hose is plugged into the outlet hole.

[0013] The beneficial effects of the present invention are as follows: the present invention provides a sputum collector capable of switching between suctioning and collecting sputum. Compared with the prior art, the present invention has at least the following technical effects: 1. A connecting hose is provided between the negative pressure end hose and the suction end hose for connecting the two, and a three-way switching valve is provided at the connection point between the connecting hose and the suction end hose for controlling the switching of the suction end hose to connect to the sputum collection cup or directly connect to the negative pressure end hose through the connecting hose. Before collection, the connecting hose is switched to directly suck away the oral, nasopharyngeal secretions sucked into the suction end hose from the negative pressure end hose; and the oral, nasopharyngeal secretions are collected by suction. When collecting secretions deep in the cavity, it is only necessary to cut off the connection between the suction end hose and the connecting hose through the three-way switching valve, so that the deep secretions can be sucked into the sputum collection cup. There is no need to pull out the suction tube to replace the sputum collector, thus effectively avoiding the problem of cross infection. When it is necessary to clean up the secretions of poor quality during the collection process, the three-way switching valve is switched back to the state where the suction end hose is connected to the connecting hose. There is no need to remove the sputum collector and use the suction tube to suck the sputum. The poor quality secretions can be directly sucked away from the negative pressure end hose without passing through the sputum collection cup, thus avoiding the collection of unqualified specimens and the need to replace the sputum collector halfway through the collection. 2. The original cup lid of the sputum collection cup has an opening for plugging in the suction end hose and the negative pressure end hose. Therefore, the hose cannot play a sealing role after being pulled out. Therefore, a cup seat cap is provided on the bottom of the sputum collection cup. The cup seat cap can be removed after the specimen collection is completed and covered on the cup lid to complete the sealing. 3. A negative pressure valve is provided on the wall of the negative pressure end hose. When using this device for suctioning, you can press the pressure relief port of the negative pressure valve with your fingers to achieve the effect of intermittent negative pressure, which facilitates the accurate suction of oropharyngeal secretions. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of a state in which the suction end hose of a sputum collector capable of switching between sputum suction and sputum collection is directly connected to the negative pressure end hose of the utility model.

[0015] Figure 2 This is a schematic diagram of a sputum collector capable of switching between sputum suction and sputum collection, in which the suction end hose is directly connected to a sputum collection cup.

[0016] Figure 3 This is a schematic diagram of the state in which the three-way valve of the utility model is in the state where the valve core is rotated to change the connection direction.

[0017] Explanation of the accompanying figures: 1. Sputum collection cup; 2. Negative pressure end hose; 3. Suction end hose; 4. Connecting hose; 5. Three-way switching valve; 6. Negative pressure valve; 7. Cup holder cap; 8. Negative pressure valve cap; 9. Suction head; 10. Scale line; 11. Cup cover; 12. Negative pressure connector. DETAILED DESCRIPTION

[0018] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0019] See also Figures 1 to 3, a sputum collector capable of switching between suctioning and collecting sputum, comprising a sputum collecting cup 1 for collecting sputum, and also comprising a negative pressure end hose 2 and a suction end hose 3 respectively connected to the sputum collecting cup 1, the downstream port of the negative pressure end hose 2 being connected to a negative pressure generator, a connecting hose 4 being provided at the portion between the negative pressure end hose 2 and the suction end hose 3 outside the sputum collecting cup 1, the connecting hose 4 being used to connect the negative pressure end hose 2 and the suction end hose 3; a three-way switching valve 5 is provided at the connection between the suction end hose 3 and the connecting hose 4, for controlling switching of the suction end hose 3 to connect to the sputum collecting cup 1 or to connect to the connecting hose 4; a negative pressure valve 6 is installed on the downstream pipe wall of the connecting position where the negative pressure end hose 2 and the connecting hose 4 are connected. A connecting hose 4 is provided between the negative pressure end hose 2 and the suction end hose 3 to connect the two. A three-way switching valve 5 is provided at the connection point between the connecting hose 4 and the suction end hose 3 to control the switching of the suction end hose 3 to connect to the sputum collection cup 1 or directly connect to the negative pressure end hose 2 through the connecting hose 4. Before collection, the connecting hose 4 is switched to directly suck away the oral, nasopharyngeal secretions sucked into the suction end hose 3 from the negative pressure end hose 2. When suctioning to collect secretions deep in the oral, nasopharyngeal cavity, it is only necessary to cut off the suction end hose 3 and the connecting hose 4 through the three-way switching valve 5. By connecting the three-way valve 5, deep secretions can be sucked into the sputum collecting cup 1, and there is no need to pull out the suction tube to replace the sputum collector, thus effectively avoiding the problem of cross infection; and when it is necessary to clean up the secretions of poor quality during the collection process, the three-way switching valve 5 is switched back to the state where the suction end hose 3 is connected to the connecting hose 4, and there is no need to remove the sputum collector for suction tube. The secretions of poor quality can be directly sucked away from the connecting hose 4 and the negative pressure end hose 2 without passing through the sputum collecting cup 1, thus avoiding the collection of unqualified specimens and the need to replace the sputum collector halfway through the collection. The negative pressure generator can be a negative pressure interface on the wall of the hospital or a negative pressure aspirator, and the downstream port of the negative pressure end hose 2 is provided with a negative pressure connector 12 to connect the negative pressure interface and the negative pressure aspirator. Preferably, the three-way switching valve is a medical three-way valve, but is not limited thereto.

[0020] See also Figures 1 to 2 Preferably, the bottom of the sputum collecting cup 1 is provided with a detachable cup seat cap 7. The inner diameter of the cup seat cap 7 matches the outer diameter of the top of the sputum collecting cup 1, or the outer diameter of the cup seat cap 7 matches the inner diameter of the top of the sputum collecting cup 1. The original cup cover 11 of the sputum collecting cup 1 has openings for plugging in the suction end hose 3 and the negative pressure end hose 2. Therefore, the hoses cannot function as a seal after being pulled out. Therefore, the cup seat cap 7 is provided on the bottom of the sputum collecting cup 1. The cup seat cap 7 can be removed and placed on the cup cover 11 after specimen collection is completed to complete the seal.

[0021] See also Figures 1 to 2Preferably, the top of the sputum collecting cup 1 is provided with a first thread, and the cup base cap 7 is provided with a matching second thread, and the first thread and the second thread cooperate to screw the cup base cap 7 onto the top of the sputum collecting cup 1. This facilitates the cup base cap 7 to cover the cup mouth of the sputum collecting cup 1 tightly.

[0022] See also Figures 1 to 2 Preferably, the negative pressure valve 6 is provided with a negative pressure valve cap 8, which is connected to the pressure relief port of the negative pressure valve 6. When the pressure relief port is covered, the circuit can be continuously sealed, thereby achieving a continuous negative pressure effect. A negative pressure valve 6 is provided on the wall of the negative pressure end hose 2. When using this device for sputum suction, the pressure relief port of the negative pressure valve 6 can be pressed by a finger to achieve intermittent negative pressure, thereby facilitating the accurate suction of oropharyngeal secretions.

[0023] See also Figures 1 to 2 Preferably, a soft rope is connected between the negative pressure valve cap 8 and the valve body of the negative pressure valve 6 to prevent the negative pressure valve cap 8 from being lost.

[0024] See also Figures 1 to 2 Preferably, the upstream port of the suction end hose 3 is connected to a suction head 9, or a fiber bronchoscope connector, for deeply sucking secretions into the oral, nasopharyngeal cavity.

[0025] See also Figures 1 to 2 Preferably, the wall of the sputum collecting cup 1 is provided with scale lines 10 for displaying the amount of the collected sputum sample.

[0026] See also Figures 1 to 2 Preferably, a detachable cup cover 11 is provided at the mouth of the sputum collecting cup 1, and the cup cover 11 is provided with an inlet hole and an outlet hole. The suction end hose 3 is plugged into the inlet hole, and the negative pressure end hose 2 is plugged into the outlet hole. It is used to fix the suction end hose 3 and the negative pressure end hose 2.

[0027] The utility model has the following working principle:

[0028] When collecting sputum, first turn the three-way switching valve 5 to the state where the connecting hose 4 and the suction hose are connected, and then the negative pressure generator works, and the suction head 9 at the upstream port of the suction hose or the fiber bronchoscope connector sucks the secretions directly through the connecting hose 4 without passing through the sputum collecting cup 1; then, the three-way switching valve 5 is switched to the state connected to the sputum collecting cup 1, and the secretions sucked by the suction head 9 at the upstream port of the suction hose or the fiber bronchoscope connector enter the sputum collecting cup 1, and the sputum sample can be collected, and it stops after reaching the appropriate amount; the direction of negative pressure suction is adjusted by the three-way switching valve 5. When it is turned horizontally, the oral, nasopharyngeal secretions or sputum of poor quality can be directly drained away, but when it is turned vertically, the sputum sample is sucked into the sputum collecting cup 1, and there is no need to replace the suction hose, thereby avoiding contamination during replacement.

[0029] Several points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which can be mechanical connection or electrical connection, or internal communication between two components, or direct connection. "Up", "down", "left", "right", etc. are only used to indicate relative position relationships. When the absolute position of the object being described changes, the relative position relationship may change.

[0030] Secondly: The drawings of the disclosed embodiments of the present invention only involve structures related to the disclosed embodiments. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other.

[0031] Finally, the above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention fall within the protection scope of the present invention.

[0032] It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications without departing from the principle of the present invention should also be regarded as within the scope of protection of the present invention.

Claims

1. A sputum collector capable of switching between suctioning and collecting sputum, comprising a sputum collection cup for collecting sputum, and further comprising a negative pressure end hose and a suction end hose respectively connected to the sputum collection cup, wherein the downstream port of the negative pressure end hose is connected to a negative pressure generator, characterized in that: A connecting hose is provided at the portion between the negative pressure end hose and the suction end hose outside the sputum collecting cup, and the connecting hose is used to connect the negative pressure end hose and the suction end hose; a three-way switching valve is provided at the connection between the suction end hose and the connecting hose, for controlling switching of the suction end hose to connect to the sputum collecting cup or to connect to the connecting hose; a negative pressure valve is installed on the downstream pipe wall of the connecting position where the negative pressure end hose and the connecting hose are connected.

2. The sputum collector capable of switching between suctioning and collecting sputum according to claim 1, characterized in that: The cup bottom sleeve of the sputum collecting cup is provided with a detachable cup seat cap, the inner diameter of the cup seat cap matches the outer diameter of the top of the sputum collecting cup, or the outer diameter of the cup seat cap matches the inner diameter of the top of the sputum collecting cup.

3. The sputum collector capable of switching between suctioning and collecting sputum according to claim 2, characterized in that: The top of the sputum collecting cup is provided with a first thread, and the cup seat cap is provided with a matching second thread. The first thread and the second thread cooperate to screw the cup seat cap onto the top of the sputum collecting cup.

4. The sputum collector capable of switching between sputum suction and sputum collection according to claim 1, characterized in that: The negative pressure valve is provided with a negative pressure valve cover cap, and the negative pressure valve cover cap is connected to the pressure relief port of the negative pressure valve.

5. The sputum collector capable of switching between suctioning and collecting sputum according to claim 4, characterized in that: A soft rope is connected between the negative pressure valve cover cap and the valve body of the negative pressure valve.

6. The sputum collector capable of switching between suctioning and collecting sputum according to claim 1, characterized in that: The upstream port of the suction end hose is connected with a suction head or a fiber bronchoscope connecting head.

7. The sputum collector capable of switching between suctioning and collecting sputum according to claim 1, characterized in that: Scale lines are arranged on the cup wall of the sputum collecting cup.

8. The sputum collector capable of switching between suctioning and collecting sputum according to claim 1, characterized in that: A detachable cup cover is provided at the cup mouth of the sputum collecting cup. A pipe inlet hole and a pipe outlet hole are provided on the cup cover. The suction end hose is plugged into the pipe inlet hole, and the negative pressure end hose is plugged into the pipe outlet hole.

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