A special cleaner for central venous catheter

Abstract

The invention belongs to the technical field of central venous catheter cleaning, and in particular to a special cleaner for central venous catheters. The existing special cleaners for central venous catheters still have the problem that after the blood clots are scraped off, the blood clots are not cleaned in time after they fall off, resulting in the need for secondary cleaning of the tube mouth, which reduces the cleaning efficiency; the device needs to be disinfected separately after cleaning, and there may be a risk of secondary infection during the period between cleaning completion and non-disinfection. The following scheme is proposed, which includes a cleaning pipeline and a disinfection pipeline. The interior of the cleaning pipeline is hollow to form a cleaning inner cavity, and a rotating motor is installed in the cleaning inner cavity. The present invention can clean the blood clots on the inner wall of the tube mouth through a cleaning rotor, thereby achieving the purpose of scraping off the blood clots. At the same time, a material drop tray is arranged at the lower part of the cleaning rotor, and when the blood clots are scraped off, they are taken out of the tube mouth by the material drop tray; there is no need to carry additional disinfection instruments, the cleaning effect is good, the safety performance is high, and the problem of secondary infection can be effectively avoided.

Description

Technical Field

[0001] The invention relates to the technical field of central venous catheter cleaners, in particular to a special cleaner for central venous catheters. Background Art

[0002] A central venous catheter is a tube used for medical purposes. It is a type of intravascular tube and is usually inserted into the patient's vein to provide medication, fluids, nutrition, etc. when needed. According to the insertion site, it can be divided into internal jugular vein catheter, subclavian vein catheter, femoral vein catheter, etc., and is divided into multiple models, including single-lumen, double-lumen, and triple-lumen central venous catheters. Since central venous catheters are used for a long time, blood clots often appear at the tube mouth of the central venous catheter. The blood clots at the tube mouth will affect the drug administration speed, so they need to be cleaned.

[0003] China Patent Authorization Announcement No. CN 211068320 U authorized and announced a screw mouth cleaner for a central venous catheter on July 24, 2020. By setting a clamping slot plate, the slot cavity of the clamping slot plate constitutes a working cavity for the orifice of the central venous catheter to extend horizontally; an arc-shaped through groove for the central venous catheter to be placed is recessed at the lower slot wall of the clamping slot plate slot cavity, and the length direction of the arc-shaped through groove is parallel to the length direction of the clamping slot plate, so as to realize the function of rapid online cleaning of the threaded groove at the screw mouth of the central venous catheter.

[0004] However, the existing central venous catheter dedicated cleaner still has the problem of single scraping of blood clots, and the blood clots are not cleaned in time after they fall off, resulting in the need for secondary cleaning of the tube mouth, which affects the cleaning efficiency. In addition, the device needs to be disinfected separately after cleaning. During the period between cleaning and non-disinfection, there may be a risk of secondary infection.

[0005] Therefore, it is particularly necessary to invent a special cleaner for central venous catheter. Summary of the invention

[0006] Based on the technical problem that after the cleaner in the prior art scrapes off the blood clot, the blood clot is not cleaned in time after it falls off, resulting in the need for secondary cleaning of the tube mouth, and the device needs to be disinfected separately after cleaning. During the period between cleaning and non-disinfection, there may be a risk of secondary infection, the present invention proposes a special cleaner for central venous catheters.

[0007] A central venous catheter dedicated cleaner comprises a shell, a battery for powering the device is arranged in the shell, a cleaning pipeline and a disinfection pipeline are respectively connected to the surface of the shell through two wires, the cleaning pipeline is hollow inside to form a cleaning inner cavity, and a rotating motor is installed in the cleaning inner cavity; it also comprises a receiving column, the receiving column is located below the cleaning pipeline and is driven to rotate by the rotating motor, a material drop plate is connected below the receiving column through a connecting column, and a plate groove is formed on the surface of the material drop plate; a cleaning rotor is arranged around the outer wall of the receiving column, the outer wall of the cleaning rotor is in contact with the inner wall of the pipe mouth to be cleaned, the outer wall diameter of the material drop plate is consistent with the outer wall diameter of the cleaning rotor, and the cleaning rotor is a soft structure;

[0008] The disinfection cavity is formed in the disinfection pipeline. A mounting base is arranged in the disinfection cavity. The lamp tube assembly is mounted on the mounting base. Several bases are mounted on the surface of the lamp tube assembly. A lamp stick is mounted in each base. The light emitted by the lamp stick is ultraviolet light that can disinfect and sterilize.

[0009] The rotating shaft end of the rotating motor passes through the interlocking gear plate and is transmission-connected to the interlocking gear plate. The outer wall of the interlocking gear plate is engaged with the inner wall of the receiving column. A bearing connecting column is connected to the bottom end of the rotating motor through a bearing. The bottom end of the bearing connecting column passes through the receiving column and is connected to the connecting column. The connecting column adopts a telescopic structure.

[0010] The rotating shaft of the rotating motor passes through the receiving column and is connected to the surface of the receiving column.

[0011] It also includes at least two slide grooves, which are arranged on the mounting base. Each slide groove is slidably mounted with a fixing buckle, and the fixing buckles are symmetrically arranged in pairs. The user can push the fixing buckle to move on the surface of the slide groove.

[0012] The bottom end of the disinfection pipeline is symmetrically provided with grooves, and a sliding structure is inserted in the groove. The sliding structure includes a laterally arranged base end face and a vertical end face perpendicular to the base end face. There are two vertical end faces that are symmetrically distributed at both ends of the base end face. The two vertical end faces of one sliding structure are connected to an opening and closing door, and the two vertical end faces of the other sliding structure are connected to a bite door.

[0013] A semicircular notch is arranged on the end faces of the opening and closing door and the biting door that are close to each other, and a semicircular structural groove is arranged on the end face of the biting door close to the opening and closing door and corresponding to the position of the semicircular opening. The semicircular notch and the semicircular structural groove form a circle when the opening and closing door and the biting door are attached.

[0014] A control switch is installed on the surface of the cleaning pipeline; a disinfection lamp stick switch is installed on the surface of the shell; the control switch is used to control the rotation or stop of the rotating motor; the disinfection lamp stick switch always controls the on or off of the disinfection lamp stick.

[0015] The beneficial effects of the present invention are:

[0016] The present invention is provided with a cleaning inner cavity, in which a cleaning vane driven by a rotating motor is provided, the cleaning vane is in contact with the inner wall of the pipe mouth, and driven by the rotating motor, the cleaning vane gradually enters the inner wall of the pipe mouth, and the cleaning vane is in the shape of a blade, and can clean blood scabs on the inner wall of the pipe mouth.

[0017] At the same time, in order to prevent blood scabs from falling into the pipe and requiring secondary cleaning, resulting in low cleaning efficiency, the present invention provides a drop tray under the cleaning vane, and the outer wall of the drop tray fits the inner wall of the pipe mouth, so that the blood scabs peeled off by the cleaning vane fall into the drop tray. When the user rotates out the cleaning vane, the drop tray can take out the fallen blood scabs together, thereby improving the cleaning efficiency of the device.

[0018] Furthermore, in order to avoid the problem that the device needs to be disinfected separately after a single cleaning, a disinfection pipeline is set in the device. After the pipe mouth is disinfected by an ultraviolet lamp, the probability of the pipe mouth being contaminated with bacteria when exposed for cleaning can be reduced, thereby avoiding the problem of wound infection caused by pipe mouth contamination due to cleaning, thereby improving the cleanliness and safety of the device.

[0019] Taking into account the problem that the continuous rotation of the blanking plate along with the cleaning vane may cause wear to the inner wall of the pipe mouth, the cleaning vane and the connecting column are separated by a bearing so that the blanking plate no longer rotates with the cleaning vane. At the same time, the connecting column is set to a retractable shape to improve the adaptability and stability of the device.

[0020] The central venous catheter dedicated cleaner of the present invention can clean the blood clots on the inner wall of the tube mouth through the cleaning rotor, so as to achieve the purpose of scraping off the blood clots. At the same time, a drop tray is arranged at the lower part of the cleaning rotor. When the blood clots are scraped off, the blood clots fall on the drop tray or fall into the space between the cleaning rotor and the drop tray, and are taken out of the tube mouth by the drop tray. At the same time, after the cleaning is completed, the tube mouth can be directly disinfected without carrying another disinfection instrument. The cleaning effect is good, the safety performance is high, and the problem of secondary infection can be effectively avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A three-dimensional schematic diagram of the structure of a central venous catheter dedicated cleaner proposed by the present invention;

[0022] Figure 2 A schematic diagram of the connection structure of a cleaning pipeline and a cleaning rotor of a central venous catheter dedicated cleaner proposed by the present invention;

[0023] Figure 3 A schematic diagram of the structure of a cleaning pipeline of a central venous catheter cleaning device proposed by the present invention;

[0024] Figure 4 This is a schematic structural diagram of a rotary motor and a bearing connecting column in a central venous catheter dedicated cleaner proposed by the present invention;

[0025] Figure 5 This is a schematic diagram of the structure of the disinfection pipeline in a central venous catheter dedicated cleaner proposed by the present invention;

[0026] Figure 6 This is a schematic structural diagram of a disinfection pipeline and an opening and closing door in a special central venous catheter cleaner proposed by the present invention.

[0027] In the figure: 1. Shell; 2. Upper shell; 3. Disinfection lamp stick switch; 4. Handle; 5. Base; 6. Wire; 7. Conductive sheet; 8. Ring terminal; 9. Cleaning pipeline; 10. Disinfection pipeline; 101. Disinfection chamber; 102. Base; 103. Mounting base; 104. Slide; 105. Lamp tube assembly; 106. Lamp stick; 107. Fixing buckle; 11. Cleaning inner cavity; 12. Control switch; 13. Rotating motor; 131. Engaging gear plate; 132. Bearing connecting column; 14. Receiving column; 15. Cleaning rotary vane; 16. Mounting platform; 17. Connecting column; 18. Dropping tray; 19. Tray slot; 20. Anti-scalding pad; 21. Opening and closing door; 22. Engaging door; 23. Sliding structure. DETAILED DESCRIPTION

[0028] The present invention will be further explained below in conjunction with specific embodiments.

[0029] refer to Figure 1In this embodiment, a central venous catheter dedicated cleaner is proposed, including a shell 1, in which a battery is placed, the battery has an output end and an input end, the output end is used to output current, the above-mentioned current can provide electrical energy for circuit elements, the input end of the battery is a type-c port, and the user can charge the battery through an external data line; the output end of the battery is electrically connected to a PLC, and the input end of the PLC is electrically connected to a disinfection light stick switch 3 and a control switch 12 through wires, and the output end of the PLC is electrically connected to a rotating motor 13 and a light stick 16, and the user rotates the disinfection light stick switch 3 to make the disinfection light stick switch 3 at In the on or off state, when the disinfection lamp stick switch 3 is in the on state, the PLC controls the battery to power the lamp tube assembly 105, and the two ends of the lamp stick 106 contact the inner walls of the two ends of the lamp tube assembly 105, and the lamp stick 106 starts to power on to emit ultraviolet rays to disinfect the objects; when the disinfection lamp stick switch 3 is in the off state, the PLC controls the lamp tube assembly 105 to cut off the power, and the lamp stick 106 goes out; the user pushes the control switch 12 to turn the control switch 12 on or off. When the control switch 12 is in the on state, the rotating motor 13 is driven by the PLC to start rotating; when the control switch 12 is in the off state, the rotating motor 13 is powered off and stops rotating. Embodiment 1

[0030] A circuit board is arranged inside the shell 1, and the circuit board is powered by a battery. Two circular openings are arranged on the surface of the shell 1, and a conductive column is respectively passed through each central opening. The rear end of the conductive column is electrically connected to the circuit board, and a wire 6 with a circular ring terminal 8 is respectively sleeved on each conductive column. After the circular ring terminal 8 is sleeved on the conductive column, the inner wall of the circular ring terminal 8 is tightly fitted to the outer wall of the conductive column.

[0031] At one end of each wire 6 where the ring terminal 8 is not provided, a metal sheet is provided around the outer wall of the wire 6, and a thread is provided on the outer wall of the metal sheet. Two pipelines are connected to the outer wall of each metal sheet, one of which is a cleaning pipeline 9 and the other is a disinfection pipeline 10.

[0032] Combination Figure 2 and Figure 3 A cleaning inner cavity 11 is provided inside the cleaning pipeline 9, and an installation groove for installing a control switch 12 is provided on the surface of the cleaning pipeline 9. One end of a wire 6 connected to the cleaning pipeline 9 extends toward the installation groove, so that the control switch 12 and the PLC form an electrical connection to ensure that the user can control the working state of the rotating motor 13 through the control switch 12.

[0033] The rotating motor 13 is installed in the middle and lower part of the cleaning inner cavity 11, and the outer wall of the rotating motor 13 fits the inner wall of the cleaning inner cavity 11. The rotating shaft end of the rotating motor 13 faces the outer wall of the cleaning pipeline 9 away from the wire 6 and passes through the outer wall. Then, it is actively connected with the receiving column 14 located below the cleaning pipeline 9. On the outer wall of the receiving column 14, a cleaning rotor 15 is arranged in a surrounding manner. In order to prevent the cleaning rotor 15 from damaging the inner wall of the pipe mouth, the cleaning rotor 15 is a soft structure. When the user controls the rotating motor 13 to start rotating through the control switch 12, the receiving column 14 and the cleaning rotor 15 located on the surface of the receiving column 14 rotate under the drive of the rotating motor 13.

[0034] In order to ensure the degree of clean fit, the receiving column 14 is provided with various specifications. When the specifications of the receiving column 14 are adapted to the central venous catheter, the cleaning vane 15 on the surface of the receiving column 14 fits tightly against the tube mouth of the aforementioned central venous catheter. Therefore, when the user needs to clean the inner wall of the tube mouth of the central venous catheter, the receiving column 14 that matches the inner wall of the tube mouth of the current central venous catheter can be selected, and then the cleaning vane 15 can be screwed into the inner wall of the tube mouth of the central venous catheter. The control switch 12 controls the rotating motor 13 to be powered on and start rotating. The rotating motor drives the cleaning vane 15 to enter the tube mouth of the central venous catheter to clean the blood clots in the tube mouth.

[0035] In order to improve the processing efficiency after cleaning and prevent blood scabs from falling directly into the pipeline, a drop tray 18 is arranged at the lower part of the receiving column 14 through the connecting column 17, and a disc groove 19 for catching the fallen blood scabs or blood scab fragments is formed on the surface of the drop tray 18. In order to improve the adaptability of the device, the drop tray 18 is provided with multiple specifications. In the receiving column 14 and the drop tray 18 of the same specification, the outer wall diameter of the drop tray 18 is consistent with the outer wall diameter of the cleaning rotor 15; at the same time, the size of the disc groove 19 changes with the change of the drop tray 18, and the change is proportional; thereby ensuring that the outer wall of the drop tray 18 also fits the inner wall of the current pipe mouth, and when blood scabs or blood scab fragments fall, they will fall into the drop tray 18; after cleaning is completed, the user rotates the cleaning pipeline 9 in the opposite direction to separate the cleaning rotor 15 from the inner wall of the pipe mouth, and at the same time drives the drop tray 18 to move toward the outlet end of the pipe mouth to bring out the blood scabs in the pipe mouth.

[0036] Combination Figure 5 The disinfection chamber 101 is arranged in the disinfection pipeline 10, the mounting base 103 is arranged in the disinfection chamber 101, a lamp tube assembly 105 is arranged on the mounting base 103, a plurality of bases 102 are arranged on the bottom end surface of the lamp tube assembly 105, and a lamp stick 106 for disinfection is installed on each base 102; the lamp stick 106 emits ultraviolet light; the user places the pipe mouth to be disinfected in the disinfection chamber 101, and controls the lamp stick 106 to emit ultraviolet light through the disinfection lamp stick switch 3, so as to disinfect the pipe mouth in the disinfection chamber 101.

[0037] When medical staff hold the disinfection pipeline 10 for disinfection, the light stick 106 emits heat, causing the temperature inside the disinfection pipeline 10 to rise. In order to prevent medical staff from getting burned, an anti-scalding pad 20 is installed on the outer wall of the disinfection pipeline 10. The user can hold the anti-scalding pad 20 to operate the disinfection pipeline 10 to avoid being burned. Embodiment 2

[0038] The difference between this embodiment and the first embodiment is that in order to prevent the blanking plate 18 from always rotating and causing wear on the inner wall of the pipe orifice, which affects the use effect of the pipe, Figure 4 , an engaging gear plate 131 is connected to the rotating shaft end of the rotating motor 13, and a bearing connecting column 132 is connected to the bottom end of the engaging gear plate 131 through a bearing, teeth are arranged on the outer wall of the engaging gear plate 131, and engaging teeth are arranged on the inner wall of the receiving column 14, the engaging teeth and the teeth are engaged with each other, the bearing connecting column 132 passes through the bottom end surface of the receiving column 14 and is connected to the connecting column 17, when the rotating motor 13 drives the engaging gear plate 131 to rotate through the rotating shaft, the receiving column 14 and the engaging gear plate 131 are engaged with each other to realize rotation, when rotating, the connecting column 17 connected to the bearing connecting column 132 no longer rotates synchronously with the engaging gear plate 131 due to the installation of the bearing, and the blanking plate 18 no longer rotates when it is in the pipe mouth, and the rest is the same as the first embodiment. Embodiment 3

[0039] The difference between this embodiment and the first embodiment is that, in order to improve the stability of the pipe mouth in the disinfection pipeline 10, at least two slide grooves 104 are arranged on the surface of the mounting base 103, and the two slide grooves 104 are symmetrically arranged. A fixing buckle 107 is respectively installed on each slide groove 104, and the fixing buckle 107 is in an "L" shape. When the pipe mouth enters the disinfection chamber 101, the user pushes the fixing buckle 107 to move along the slide groove 104 until the bottom ends of the two fixing buckles 107 fix the pipe mouth. At this time, the pipe mouth to be disinfected is fixed in the disinfection chamber 101, which can save manpower and improve the disinfection efficiency. The rest is the same as the first embodiment. Embodiment 4

[0040] The difference between this embodiment and the first embodiment is that Figure 6Two openings are symmetrically arranged in the cleaning pipeline 9, and a sliding structure 23 is arranged in each opening. The sliding structure 23 has a horizontally arranged base end face and vertical end faces located at both ends of the base end face and vertically connected to the base end face. The base end face passes through the opening, and the bottom end of the vertical end face is connected to the biting door 22. The bottom end of the vertical end face of the other sliding structure 23 is connected to the opening and closing door 21. Micro magnets are arranged on the end faces where the biting door 22 and the opening and closing door 21 are in contact. The polarities of the micro magnets on the opening and closing door 21 and the micro magnets on the biting door 22 are opposite. The outer wall radius of the opening and closing door 21 is larger than the outer wall radius of the cleaning pipeline 9; the outer wall diameter of the biting door 22 is equal to the outer wall diameter of the opening and closing door 21. The user can achieve the purpose of closing or opening the cleaning pipeline 9 by pushing the opening and closing door 21 and the biting door 22.

[0041] In order to squeeze the tube mouth being sterilized when the opening and closing door 21 and the biting door 22 are in contact, an arc groove with a semicircular structure is opened on the end face of the opening and closing door 21 close to the biting door 22; at the same time, another arc groove with a semicircular structure is also opened on the surface of the biting door 22 corresponding to the arc groove, and the two arc grooves form a circle when the opening and closing door 21 and the biting door 22 are in contact.

[0042] When the nozzle enters the disinfection cavity 101, the user can push the opening and closing door 21 and the biting door 22 in a direction close to each other so that the opening and closing door 21 and the biting door 22 are in contact with each other to improve the disinfection efficiency. The rest is the same as the first embodiment. Embodiment 5

[0043] The difference between this embodiment and the first embodiment is that the number of the slide grooves 104 is four, and correspondingly, the number of the fixing buckles 107 is also four, and the rest is the same as the first embodiment. Embodiment 6

[0044] The difference between this embodiment and the first embodiment is that the receiving column 14 and the rotating shaft end of the rotating motor 13 are connected by threads or snaps, and the rest is the same as the first embodiment.

[0045] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A central venous catheter cleaning device, comprising a housing (1), wherein a battery for powering the device is arranged in the housing (1), characterized in that: A cleaning pipeline (9) and a disinfection pipeline (10) are respectively connected to the surface of the outer shell through two wires (6); the interior of the cleaning pipeline (9) is hollow to form a cleaning inner cavity (11), and a rotating motor (13) is installed in the cleaning inner cavity (11); it also includes a receiving column (14), the receiving column (14) is located below the cleaning pipeline (9) and is driven to rotate by the rotating motor (13); a material drop plate (18) is connected below the receiving column (14) through a connecting column (17), and a plate groove (19) is formed on the surface of the material drop plate (18); a cleaning vane (15) is arranged around the outer wall of the receiving column (14), the outer wall of the cleaning vane (15) is in contact with the inner wall of the pipe mouth to be cleaned, the outer wall diameter of the material drop plate (18) is consistent with the outer wall diameter of the cleaning vane (15), and the cleaning vane (15) is a soft structure; A disinfection chamber (101) is formed in the disinfection pipeline (10), a mounting base (103) is arranged in the disinfection chamber (101), a lamp tube assembly (105) is mounted on the mounting base (103), a plurality of bases (102) are mounted on the surface of the lamp tube assembly (105), a lamp stick (106) is mounted in each base (102), and the light emitted by the lamp stick (106) is ultraviolet light capable of disinfection and sterilization.

2. The central venous catheter dedicated cleaner according to claim 1, characterized in that: The rotating shaft end of the rotating motor (13) passes through the meshing gear plate (131) and is in transmission connection with the meshing gear plate (131); the outer wall of the meshing gear plate (131) meshes with the inner wall of the receiving column (14); a bearing connecting column (132) is connected to the bottom end of the rotating motor (13) via a bearing; the bottom end of the bearing connecting column (132) passes through the receiving column (14) and is connected to the connecting column (17).

3. The central venous catheter dedicated cleaner according to claim 1, characterized in that: The rotating shaft of the rotating motor (13) passes through the receiving column (14) and is connected to the surface of the receiving column (14).

4. The central venous catheter dedicated cleaner according to any one of claims 2 or 3, characterized in that: It also comprises at least two slide grooves (104), wherein the slide grooves (104) are arranged on the mounting base (103), and a fixing buckle (107) is slidably mounted on the surface of each slide groove (104), and the fixing buckles (107) are symmetrically arranged in pairs.

5. The central venous catheter dedicated cleaner according to claim 4, characterized in that: The number of the fixing buckles (107) is four.

6. The central venous catheter dedicated cleaner according to claim 5, characterized in that: The bottom end of the disinfection pipeline (10) is symmetrically provided with grooves, and a sliding structure (23) is inserted into the groove. The sliding structure (23) includes a transversely arranged base end face and a vertical end face perpendicular to the base end face. The vertical end faces are two and symmetrically distributed at both ends of the base end face. The two vertical end faces of one sliding structure (23) are connected to the opening and closing door (21), and the two vertical end faces of the other sliding structure (23) are connected to the bite door (22).

7. The central venous catheter dedicated cleaner according to claim 6, characterized in that: A semicircular notch is provided on the end faces of the opening and closing door (21) and the biting door (22) that are close to each other, and a semicircular structural groove is provided on the end face of the biting door (22) that is close to the opening and closing door (21) and at a position corresponding to the semicircular notch, wherein the semicircular notch and the semicircular structural groove form a circle when the opening and closing door (21) and the biting door (22) are attached to each other.

8. The central venous catheter dedicated cleaner according to claim 1, characterized in that: A control switch (12) is installed on the surface of the cleaning pipeline (9).

9. The central venous catheter dedicated cleaner according to claim 1, characterized in that: A disinfection light stick switch (3) is mounted on the surface of the housing (1).

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