An externally powered deep airway anti-pollution collection swab

Abstract

An external power deep airway anti - pollution collection swab of the present invention belongs to the field of medical materials, and includes a bronchoscope, a collection swab, a swab tube, a spiral track, a swab rod, a swab head, a connector, a throat swab paper, a positioning projection, a cylindrical positioning pin, a control mechanism, a power supply, a motor, a rotary vibration shaft, a stroke slider, and a spring; through the design of the present application, the collection swab directly obtains specimens from the lower respiratory tract for detection, which can greatly improve the accuracy of pathogen collection; controlled by a motor, the rotary vibration wire is used to achieve the spiral feed of the collection swab, enabling spiral sampling, so that the collection swab can smoothly reach deeper parts of the patient's respiratory tract, with simple operation and no pollution; during the collection process, multiple samplings are carried out through both ends of the throat swab paper, the conical head at the front end of the swab rod, and the entry and retraction of the swab rod. There is no need to repeatedly brush, which can avoid causing secondary injuries while increasing the contact area with the mucosa and obtaining the maximum effective pathogen concentration.

Description

Technical Field

[0001] The present invention belongs to the field of medical materials, and particularly relates to a novel externally powered deep airway anti-pollution collection swab. Background Art

[0002] Respiratory tract infection is one of the common diseases in the respiratory department, which can be caused by various pathogens such as bacteria, mycoplasma, viruses, and fungi. Therefore, obtaining effective, true, and reliable samples in clinical work is the key to accurate diagnosis. Currently, in clinical practice, samples (including sputum, nasopharyngeal swab specimens, bronchoalveolar lavage fluid (BALF), and bronchoscope protected specimen brush (PSB) brushings, etc.) are mostly collected by clinical medical staff. Since there are many colonized and normal flora in the respiratory tract itself, there is a possibility of contaminating the sample and false positives during the sample collection process. Therefore, directly obtaining lower respiratory tract specimens for detection can greatly improve the accuracy of pathogen collection. Currently, it can be obtained by collecting bronchoalveolar lavage fluid and brushing secretions. The lavage method is directly through the operating channel, so it is inevitable to bring in upper airway colonized pathogens during the endoscope insertion process. Even though it is better than ordinary sputum culture, there is still a possibility of mixing with miscellaneous bacteria, and due to the limitation of the lavage volume, the concentration of the obtained pathogen can be limited, and its positive rate is still relatively low, especially the detection rate of bacteria is not higher than 30%. Especially in small body weight children, the amount of specimens obtained during bronchoalveolar lavage is limited. If more fluid is lavaged, or the airway function of the child is poor and the excretion function is poor, it will also cause problems such as fluid retention.

[0003] Currently, the methods for collecting pathogens by swab collection at home and abroad include nasal swabs and throat swabs, both of which collect samples in the upper respiratory tract, mainly viruses and atypical pathogens. Due to the existence of colonized normal flora, effective bacterial detection cannot be performed. Moreover, the collection site is in the upper respiratory tract, and for lower respiratory tract infections, it cannot completely and truly reflect the distribution of pathogens. Although the brush collection can penetrate deep into the airway, due to its diameter limitation, the depth of the small airways it reaches is also limited, and it needs to be repeatedly brushed, which is likely to cause secondary injuries. Currently, some experts have developed deep airway swabs, but they also need to be operated by repeatedly brushing. Inevitably, the distal end of the swab will also cause secondary injuries, and its contact area is small, and it cannot effectively contact the mucosa. In summary, all the above collection methods have certain defects.

[0004] Therefore, there is an urgent need for a novel technical solution in the existing technology to solve this problem. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to solve the problems that the existing collection equipment is inconvenient to operate and has limited collection depth when collecting lower respiratory tract samples.

[0006] An external power deep airway anti - pollution collection swab, characterized in that it comprises a bronchoscope, a collection swab, a control mechanism, a power supply, a motor, a rotary vibration shaft, a stroke slider and a spring;

[0007] The inner cavity of the bronchoscope is provided with a collection swab, a control mechanism, a power supply, a motor and a rotary vibration shaft;

[0008] The control mechanism is electrically connected to the power supply, and the control mechanism is also data - connected to the motor;

[0009] The output end of the motor is provided with a rotary vibration shaft, and a stroke slider is sleeved on the rotary vibration shaft. One end of the stroke slider is connected to the motor through a spring, and the other end is connected to the collection swab through a connecting piece;

[0010] The collection swab comprises a swab tube, a swab rod and a swab head;

[0011] Wherein, a swab head is arranged at the end of the swab rod, and the swab rod is arranged inside the swab tube, and the connecting piece is connected to the swab rod;

[0012] A spiral track is arranged on the tube wall of the swab tube, and a cylindrical positioning pin is arranged on the swab rod, and the cylindrical positioning pin is in sliding fit with the spiral track.

[0013] The control mechanism comprises a power switch, a feed switch, a return switch and a PCBA, and the PCBA is respectively connected to the power switch, the feed switch and the return switch.

[0014] A pharyngeal swab paper is arranged on one side of the swab rod close to the swab head.

[0015] The connection mode between the swab rod and the pharyngeal swab paper is snap - connection.

[0016] Long - strip through - holes parallel to the axial direction of the rotary vibration shaft are symmetrically arranged on the stroke slider, and limit protrusions matched with the long - strip through - holes are arranged on the rotary vibration shaft.

[0017] The number of the long - strip through - holes is two.

[0018] The connecting piece is a steel wire, and one or more positioning protrusions are arranged on the swab rod. Through - holes are arranged on both the positioning protrusions and the cylindrical positioning pin. The connecting piece sequentially passes through the through - holes on the positioning protrusions and the cylindrical positioning pin, and both ends of the connecting piece are fixedly connected to the stroke slider.

[0019] The number of the positioning protrusions is three.

[0020] The number of the springs is two.

[0021] Through the above - mentioned design scheme, the present invention can bring the following beneficial effects:

[0022] Collecting swabs directly obtain lower respiratory tract specimens for testing, which can greatly improve the accuracy of pathogen collection; controlled by a motor, the rotating and vibrating wire realizes the spiral feeding of the collecting swab, enabling spiral sampling, allowing the collecting swab to smoothly reach deeper into the patient's respiratory tract, with simple operation and no pollution; during the collection process, multiple samplings are carried out through both ends of the pharyngeal swab paper, the conical head at the front end of the swab rod, and the entry and retraction of the swab rod. There is no need for repeated brushing, which can avoid causing secondary injuries while increasing the contact area with the mucosa and obtaining the maximum effective pathogen concentration. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further described below in conjunction with the drawings and specific embodiments:

[0024] Figure 1 is a schematic structural diagram of the present invention;

[0025] Figure 2 is Figure 1 a partial enlarged view of area A of

[0026] Figure 3 is a schematic structure of the collecting swab of the present invention Figure 1 ;

[0027] Figure 4 is a schematic structure of the collecting swab of the present invention Figure 2 ;

[0028] Figure 5 is a schematic structural diagram of the swab rod of the present invention;

[0029] Figure 6 is an assembly schematic diagram of the rotating vibration shaft and the stroke slider of the present invention;

[0030] Wherein: 1 - bronchoscope, 2 - collecting swab, 201 - swab tube, 202 - spiral track, 203 - swab rod, 204 - swab head, 205 - connecting piece, 206 - pharyngeal swab paper, 207 - positioning protrusion, 210 - cylindrical positioning pin, 3 - control mechanism, 303 - power switch, 304 - feed switch, 305 - retract switch, 306 - PCBA, 7 - power supply, 8 - motor, 9 - rotating vibration shaft, 901 - limit protrusion, 10 - stroke slider, 101 - long strip through hole, 11 - spring. SPECIFIC EMBODIMENTS

[0031] As shown in the figure, an externally powered deep airway anti - pollution collecting swab is characterized in that it includes a bronchoscope 1, a collecting swab 2, a control mechanism 3, a power supply 7, a motor 8, a rotating vibration shaft 9, a stroke slider 10 and a spring 11;

[0032] The inner cavity of the bronchoscope 1 is provided with a collection swab 2, a control mechanism 3, a power supply 7, a motor 8 and a rotary vibration shaft 9;

[0033] The control mechanism 3 is electrically connected to the power supply 7, and the control mechanism 3 is also data-connected to the motor 8;

[0034] The output end of the motor 8 is provided with a rotary vibration shaft 9, and a stroke slider 10 is sleeved on the rotary vibration shaft 9. One end of the stroke slider 10 is connected to the motor 8 through a spring 11, and the other end is connected to the collection swab 2 through a connecting member 205;

[0035] The collection swab 2 includes a swab tube 201, a swab rod 203 and a swab head 204;

[0036] Wherein, a swab head 204 is provided at the end of the swab rod 203, and the swab rod 203 is arranged inside the swab tube 201. The connecting member 205 is connected to the swab rod 203;

[0037] A spiral track 202 is provided on the tube wall of the swab tube 201, a cylindrical positioning pin 210 is provided on the swab rod 203, and the cylindrical positioning pin 210 is in sliding fit with the spiral track 202.

[0038] The control mechanism 3 includes a power switch 303, a feed switch 304, a retract switch 305 and a PCBA 306. The PCBA 306 is respectively connected to the power switch 303, the feed switch 304 and the retract switch 305.

[0039] A throat swab paper 206 is provided on one side of the swab rod 203 close to the swab head 204.

[0040] The connection mode between the swab rod 203 and the throat swab paper 206 is snap connection.

[0041] Long strip-shaped through holes 101 parallel to the axial direction of the rotary vibration shaft 9 are symmetrically arranged on the stroke slider 10, and a limit protrusion 901 matched with the long strip-shaped through holes is arranged on the rotary vibration shaft 9.

[0042] The number of the long strip-shaped through holes 101 is two.

[0043] The connecting member 205 is a steel wire, and more than one positioning protrusion 207 is arranged on the swab rod 203. Through holes are arranged on both the positioning protrusion 207 and the cylindrical positioning pin 210. The connecting member 205 sequentially passes through the through holes on the positioning protrusion 207 and the cylindrical positioning pin 210, and both ends of the connecting member 205 are fixedly connected to the stroke slider 10.

[0044] The number of the positioning protrusions 207 is three.

[0045] The number of the springs 11 is two.

[0046] The model of the bronchoscope 1 is Olympus electronic bronchoscope BF-XP290.

[0047] On the stroke slider 10, symmetrically arranged are elongated through holes 101 parallel to the axial direction of the rotary vibration shaft 9, and on the rotary vibration shaft 9, a limiting protrusion 901 is arranged which is matched with the elongated through holes 101. The axial elongated through holes 101 can ensure that the forming slider 10 can reciprocate axially on the rotary vibration shaft 9 and rotate together with the rotary vibration shaft 9;

[0048] The two ends of the spring 11 are respectively connected to the stroke slider 10 and the housing of the motor 8, so that the stroke slider 10 has a resilience force during reciprocating motion;

[0049] The using steps of the present invention are as follows:

[0050] Step 1: Press the power switch 303 to turn on the motor 8, press the feed switch 304 to make the rotary vibration shaft 9 vibrate and rotate forward. The stroke slider 10 also vibrates and rotates accordingly. The connecting piece 205 fixedly connected to the stroke slider 10 applies a forward rotational force on the cylindrical positioning pin 210. Through the cooperation of the cylindrical positioning pin 210 and the spiral track 202, the swab rod 203 vibrates and spins out. When the swab rod 203 spins out, the spring 11 is in a stretched state to provide a forward displacement amount for the swab rod 203. Install the swab head 204 on the swab rod 203, and insert the throat swab paper 206 into the swab rod 203;

[0051] Step 2: Turn off the feed switch 304, press the retract switch 305. Through the rotary vibration shaft 9 and the connecting piece 205, apply a reverse rotational force on the cylindrical positioning pin 210 to make the swab rod 203 retract through the spiral track 202. The spring 11 returns to its original state to give a retracting displacement amount to the swab rod 203. Turn off the retract switch 305 and the power switch 303;

[0052] Step 3: After the bronchoscope 1 reaches the patient's respiratory tract, press the power switch 303 and the feed switch 304 to make the swab rod 203 vibrate and spin deeper into the patient's respiratory tract through the spiral track 202 to reach the sampling target;

[0053] Step 5: During the process of the swab rod 203 vibrating and spinning into the sampling target, the throat swab paper 206 in the hollow groove of the swab rod 203 performs non-destructive sampling through the rotation of the swab rod 203, and through the deepening and rotation of the swab head 204, secondary sampling is performed;

[0054] Step 6: Turn off the feed switch 304, press the retract switch 305, so that the swab rod 203 vibrates and retracts through the spiral track 202, and rotate the pharyngeal swab paper 206 and the swab head 204 during the retraction process. Then turn off the retract switch 305 and the power switch 303 to complete multiple samplings;

[0055] Step 7: Remove the bronchoscope 1 from the patient's respiratory tract, cut off the sampled part of the pharyngeal swab paper 206, and disassemble the swab head 204 to complete the sampling.

[0056] The deep airway collection swab in the present invention has the characteristics of anti-pollution, small damage, and external power control for spiral descent. Increasing the contact area with the mucosa and reducing secondary damage by the spiral collection method are the advantages of this project. It can effectively obtain deep airway specimens on the premise of anti-pollution, reduce false positives, and improve the pathogen detection rate, which has important clinical significance and application prospects for the effective prevention and treatment of respiratory infectious diseases.

Claims

1. An externally powered deep airway anti-pollution collection swab, characterized in that: It includes a bronchoscope (1), a collection swab (2), a control mechanism (3), a power supply (7), a motor (8), a rotary vibration shaft (9), a stroke slider (10) and a spring (11); The inner cavity of the bronchoscope (1) is provided with a collection swab (2), a control mechanism (3), a power supply (7), a motor (8) and a rotary vibration shaft (9); The control mechanism (3) is electrically connected to the power supply (7), and the control mechanism (3) is also data-connected to the motor (8); The output end of the motor (8) is provided with a rotary vibration shaft (9), and a stroke slider (10) is sleeved on the rotary vibration shaft (9). One end of the stroke slider (10) is connected to the motor (8) through a spring (11), and the other end is connected to the collection swab (2) through a connecting member (205); The collection swab (2) includes a swab tube (201), a swab rod (203) and a swab head (204); Wherein, a swab head (204) is provided at the end of the swab rod (203), and the swab rod (203) is arranged inside the swab tube (201), and the connecting member (205) is connected to the swab rod (203); A spiral track (202) is provided on the tube wall of the swab tube (201), a cylindrical positioning pin (210) is provided on the swab rod (203), and the cylindrical positioning pin (210) is in sliding fit with the spiral track (202); The connection mode between the swab rod (203) and the pharyngeal swab paper (206) is snap connection; The control mechanism (3) includes a power switch (303), a feed switch (304), a retract switch (305) and a PCBA (306), and the PCBA (306) is respectively connected to the power switch (303), the feed switch (304) and the retract switch (305); A pharyngeal swab paper (206) is provided on one side of the swab rod (203) close to the swab head (204); Long strip-shaped through holes (101) parallel to the axial direction of the rotary vibration shaft (9) are symmetrically arranged on the stroke slider (10), and a limit protrusion (901) matched with the long strip-shaped through holes (101) is arranged on the rotary vibration shaft (9); The connecting member (205) is a steel wire, and more than one positioning protrusion (207) is arranged on the swab rod (203). Through holes are arranged on the positioning protrusion (207) and the cylindrical positioning pin (210). The connecting member (205) sequentially passes through the through holes on the positioning protrusion (207) and the cylindrical positioning pin (210), and both ends of the connecting member (205) are fixedly connected to the stroke slider (10). The number of the positioning protrusions (207) is three; The specific use steps of the external power deep airway anti-pollution collection swab are as follows: Step 1: Press the power switch (303) to turn on the motor (8). Press the feed switch (304) to make the rotary vibration shaft (9) vibrate and rotate forward. The stroke slider (10) also vibrates and rotates accordingly. The connecting piece (205) fixedly connected to the stroke slider (10) applies a forward rotational force to the cylindrical locating pin (210). Through the cooperation of the cylindrical locating pin (210) and the spiral track (202), the swab rod (203) vibrates and rotates out. When the swab rod (203) rotates out, the spring (11) is in a stretched state to provide a forward displacement for the swab rod (203). Install the swab head (204) on the swab rod (203), and insert the pharyngeal swab paper (206) into the swab rod (203). Step 2: Turn off the feed switch (304). Press the retract switch (305) to apply a reverse rotational force to the cylindrical locating pin (210) through the rotary vibration shaft (9) and the connecting piece (205), so that the swab rod (203) retracts through the spiral track (202). The spring (11) returns to its original state to provide a retracting displacement for the swab rod (203). Turn off the retract switch (305) and the power switch (303). Step 3: After the bronchoscope (1) reaches the patient's respiratory tract, press the power switch (303) and the feed switch (304) to make the swab rod (203) vibrate and rotate deeper into the patient's respiratory tract through the spiral track (202) to reach the sampling target. Step 4: During the process of the swab rod (203) vibrating and rotating into the sampling target, the pharyngeal swab paper (206) in the hollow groove of the swab rod (203) performs non-destructive sampling through the rotation of the swab rod (203), and through the penetration and rotation of the swab head (204), secondary sampling is performed. Step 5: Turn off the feed switch (304). Press the retract switch (305) to make the swab rod (203) vibrate and retract through the spiral track (202), and rotate the pharyngeal swab paper (206) and the swab head (204) during the retraction process. Turn off the retract switch (305) and the power switch (303) to complete multiple samplings. Step 6: Remove the bronchoscope (1) from the patient's respiratory tract, cut off the sampled part of the pharyngeal swab paper (206), and disassemble the swab head (204) to complete the sampling.

2. The external power deep airway anti-pollution collection swab according to claim 1, characterized in that: The number of the long strip through holes (101) is two.

3. The external power deep airway anti-pollution collection swab according to claim 1, characterized in that: The number of the springs (11) is two.

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