Hemodialysis catheter connector cleaning brush

Abstract

The utility model relates to the technical field of medical instruments, and discloses a hemodialysis catheter connector cleaning brush which comprises a shell, a brush head, a brush rod and a brush rod. The cleaning brush is sealed in the shell, and a brush head at the end of the cleaning brush can be pushed out to the outside after breaking the membrane; the brush head is a strip-shaped rod, a plurality of bristles are vertically connected to the rod and are annularly distributed into a group, and each group of bristles are arranged at equal intervals; and the cotton branch is sealed in the other end of the shell relative to the cleaning brush and can be pushed to the outside after breaking the membrane. A sterile sealing mode that a film can be broken is adopted, the long-strip-shaped shell facilitates storage of cleaning objects and use and holding, the visual graduated scale is arranged in the center of the shell and used for measuring the exposed length of a catheter, the cleaning brush bin and the cotton branch bin are arranged at the two ends of the shell respectively, and the cleaning brushes can be flexibly pushed out to be used according to clinical requirements. The blood scab at the hemodialysis catheter connector is efficiently cleaned and brushed, the cotton branches capable of being pushed out are used for cleaning the brushed blood scab, ending work is completed in a matched mode, use is convenient, and practicability is high.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically a cleaning brush for hemodialysis catheter connectors. Background Technology

[0002] Hemodialysis is one of the renal replacement therapies for patients with acute and chronic renal failure. Utilizing the principle of a semipermeable membrane, it removes harmful substances, metabolic waste, and excess electrolytes from the body through diffusion, thereby purifying the blood and correcting water, electrolyte, and acid-base imbalances. The hemodialysis catheter, as one of the important vascular access points for the smooth progress of hemodialysis, is the "lifeline" for dialysis patients.

[0003] In clinical practice, hemodialysis treatment requires repeated connection and disconnection of catheter connectors with syringes and extracorporeal circulation tubing. When hemodialysis catheters are left in place for extended periods, blood clots often remain at the catheter interface seams, especially when catheter function is impaired. Nursing staff must use syringes to connect the catheter connectors, inject saline solution, and repeatedly aspirate blood to check catheter patency. Blood stains adhere to the outside of the connectors, and the fine threads easily trap dirt and grime, increasing cleaning difficulty and serving as a culture medium for bacteria and microorganisms, thus increasing the risk of infection. During dialysis, relatively warm blood flows through the long-term dialysis catheters and extracorporeal circulation tubing. The circulation tubing expands due to heat, causing the connection to become even tighter. Blood residue can cause uneven stress at the connection point when separating the catheter from the extracorporeal circulation tubing / heparin cap, leading to catheter connector rupture and shortening the catheter's lifespan. Furthermore, blood clots harden and become highly adhesive over time, making them difficult to remove. Currently, there are no sterile tools of suitable size for cleaning.

[0004] Therefore, we propose a cleaning brush for hemodialysis catheter connectors to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a cleaning brush for hemodialysis catheter connectors to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a cleaning brush for hemodialysis catheter connectors, comprising:

[0007] The outer shell has a strip-like structure;

[0008] The cleaning brush is sealed inside the outer casing. The brush head at the end of the cleaning brush can be pushed out of the membrane to the outside. The brush head is a strip-shaped rod with several bristles vertically connected to it. The bristles are arranged in a ring as a group, and each group of bristles is evenly spaced.

[0009] The cotton twig, which is sealed in the other end of the outer casing to clean the brush, can be pushed out to the outside by breaking the membrane.

[0010] As an optional embodiment of the hemodialysis catheter connector cleaning brush of this utility model, there are two cleaning brushes arranged symmetrically, which are divided into a first brush rod and a second brush rod.

[0011] As an optional embodiment of the hemodialysis catheter connector cleaning brush of this utility model, wherein: the cross-section of the brush head of the first brush rod is fishbone shaped, with the middle bristles protruding and longer than the bristles on both sides.

[0012] As an optional embodiment of the hemodialysis catheter connector cleaning brush of this utility model, the brush head of the second brush rod is cylindrical.

[0013] As an optional embodiment of the hemodialysis catheter connector cleaning brush of this utility model, wherein: one end of the outer shell is provided with a telescopic groove for filling the cleaning brush, two telescopic grooves are arranged separately, and the outlet of the telescopic groove is sealed with a plastic film.

[0014] As an optional solution of the hemodialysis catheter connector cleaning brush of this utility model, the cleaning brush includes a crossbar that is integrated with the brush head. The crossbar is located in the telescopic groove, and the end of the crossbar is connected to the bottom of the telescopic groove by a spring.

[0015] A push block is fixedly connected to the crossbar via a plate. A sliding guide groove is provided on the outer shell to guide the push block along the groove.

[0016] As an optional solution for the hemodialysis catheter connector cleaning brush of this utility model, the telescopic groove is divided into two ends, and the groove diameter of the section near the inner bottom is wider than that of the groove section at the outlet; a limiting ring is fixedly connected to the middle of the crossbar, and the limiting ring moves to abut against the section of the telescopic groove.

[0017] A locking block is fixedly connected to the bottom of the crossbar. The locking block includes a strip that opens outward at an angle. The end of the strip is hook-shaped. A slot is opened on the telescopic groove. The locking block hooks into the slot.

[0018] As an optional embodiment of the hemodialysis catheter connector cleaning brush of this utility model, the outer shell has a holding groove, cotton twigs are placed in the holding groove, and the outlet of the holding groove is also sealed with a plastic film.

[0019] As an optional solution for the hemodialysis catheter connector cleaning brush of this utility model, a push block is also fixedly connected to the rod of the cotton branch by a plate, and a sliding groove is correspondingly opened on the outer shell to match the plate on the cotton branch.

[0020] As an optional embodiment of the hemodialysis catheter connector cleaning brush of this utility model, a scale is provided on the back of the outer shell relative to the push block.

[0021] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0022] This hemodialysis catheter connector cleaning brush features a sterile seal with a ruptureable membrane. Its elongated outer shell facilitates the storage of cleaning items and easy gripping. Two cleaning brush compartments and a cotton swab compartment are located at each end. The brushes are available in multiple types and can be flexibly extended for use according to clinical needs. It efficiently cleans and removes blood clots from the hemodialysis catheter connector. The extendable cotton swabs are used to clean up the removed blood clots, completing the finishing touches. It is convenient to use and highly practical. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the internal structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the main structure of the present invention in use;

[0025] Figure 3 This is a schematic diagram of the main structure of the second brush rod of this utility model;

[0026] Figure 4 This is a rear view diagram of the structure when the present invention is in use.

[0027] In the diagram: 1. Outer shell; 101. Telescopic groove; 102. Spring; 103. Slot; 104. Slide groove; 105. Container slot; 2. Cleaning brush; 201. First brush rod; 2011. Crossbar; 2012. Brush head; 2013. Brush bristles; 2014. Limiting ring; 2015. Locking block; 202. Second brush rod; 3. Cotton stick; 4. Push block; 5. Plastic film; 6. Ruler. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figures 1-4 This utility model provides a technical solution: a cleaning brush for hemodialysis catheter connectors, comprising:

[0030] Outer shell 1, with a strip-shaped structure, is made of plastic and is easy for users to hold;

[0031] Cleaning brush 2 is sealed inside the outer shell 1. The brush head 2012 at the end of the cleaning brush 2 can be pushed out of the membrane to the outside. The brush head 2012 is a strip rod with several bristles 2013 vertically connected to the rod. They are arranged in a ring as a group, and each group of bristles 2013 is arranged at equal intervals for cleaning and brushing the hemodialysis catheter connector.

[0032] Among them, there are two cleaning brushes 2 arranged symmetrically, namely the first brush bar 201 and the second brush bar 202, each with bristles of different shapes.

[0033] The brush head 2012 of the first brush handle 201 has a fishbone-shaped, i.e. oval, cross-section. The bristles 2013 in the middle are raised and longer than the bristles on both sides, making it easier for the tip of the first brush handle to penetrate. The bristles in the middle are used to effectively clean blood crusts and remove stains.

[0034] It should be noted that the gap of the hemodialysis catheter connector is only about 0.2cm. The brush head of this application is designed to fit the size appropriately. The specific design is for product application purposes and will not be described in detail here.

[0035] The brush head 2012 of the second brush rod 202 is cylindrical, which is different from the shape of the bristles 2013 of the first brush rod 201. The bristles 2013 of the first brush rod 201 can smoothly and stably penetrate into the connector for cleaning and brushing.

[0036] That is, the cleaning brush has two types of configurations, which can be used flexibly by the user according to clinical needs, with high flexibility and strong adaptability.

[0037] To facilitate cleaning, sterile sealing, and ease of use:

[0038] In this embodiment, one end of the outer shell 1 is provided with a telescopic groove 101 for filling the cleaning brush 2. There are two telescopic grooves 101 arranged to correspond to each brush rod. The outlet of the telescopic groove 101 is sealed with a plastic film 5 to maintain sterility when not in use.

[0039] Furthermore, the cleaning brush 2 includes a crossbar 2011 integrally connected to the brush head 2012. The crossbar 2011 is located within the telescopic groove 101, and a spring 102 connects the end of the crossbar 2011 to the bottom of the telescopic groove 101. A push block 4 is fixedly connected to the crossbar 2011 via a plate. A sliding guide groove 104 is provided on the outer shell 1 to guide the push block 4 along the sliding groove 104. In use, the user pushes the push block 4 forward with their finger, causing the cleaning brush 2 to move together, and the brush head 2012 extends out through the plastic film 5 at the outlet, ready for use.

[0040] As a further improvement to this embodiment, in order to stabilize the operation of the cleaning brush 2: the telescopic groove 101 is divided into two ends, and the groove diameter of the section near the inner bottom is wider than that of the section at the outlet; the middle of the crossbar 2011 is fixedly connected to the limiting ring 2014, and the limiting ring 2014 moves against the section of the telescopic groove 101 to limit the movement of the cleaning brush 2 and prevent excessive extension.

[0041] Meanwhile, a locking block 2015, made of plastic, is fixedly connected to the bottom of the crossbar 2011. The locking block 2015 includes a strip that opens outward at an angle, with hooks at the ends. When not in use, it is flexibly bent and stored in the telescopic groove 101. A rectangular slot 103 is provided on the telescopic groove 101. As the cleaning brush 2 moves to the end, the locking block 2015 is located in the slot 103, the plate opens outward elastically, and the hook is in the slot 103, limiting and fixing the cleaning brush 2 so that the user can hold the outer casing 1 to perform cleaning operations.

[0042] The cotton stick 3, which is sealed in the other end of the outer casing 1 relative to the cleaning brush 2, can be pushed out of the membrane to clean the blood scabs brushed out.

[0043] That is, a cleaning brush chamber and a cotton twig chamber are respectively arranged at both ends of the outer shell 1, which can quickly clean up the blood scabs after washing and complete the finishing work.

[0044] The outer shell 1 has a holding trough 105 inside, and the cotton twigs 3 are placed in the holding trough 105. The outlet of the holding trough 105 is also sealed with a plastic film 5 for sterile preservation.

[0045] Correspondingly, a pusher block 4 is also fixedly connected to the stick of cotton stick 3 via a plate, and a sliding groove 104 is correspondingly opened on the outer shell 1 to match the plate on cotton stick 3. After cleaning with cleaning brush 2, cotton stick 3 is pushed out to clean up the blood scabs brushed out, thus completing the finishing work.

[0046] As a further improvement of this embodiment, a scale 6 is provided on the back of the outer shell 1 relative to the push block 4 for measuring the exposed length of the hemodialysis catheter so as to facilitate proper cleaning during cleaning.

[0047] Note: This product is a disposable item, primarily made of plastic, making it lightweight and easy to use. When using this product, you can press the push block 4 with your finger to extend the brush head 2012 to its maximum length; it can be retracted after use. Alternatively, you can choose to use only one brush head 2012. However, once the limit is reached, the other brush head 2012 cannot be used to avoid contaminating the environment with the previous brush head 2012.

[0048] Note: The length of cleaning brush 2 is 7-10cm. The appropriate length should be set to meet the cleaning force requirements.

[0049] In terms of overall structure, it adopts a sterile sealing method with a ruptureable membrane. The long strip shell 1 is convenient for storing cleaning items and for holding. The two ends are respectively arranged with cleaning brush compartment and cotton twig compartment. The cleaning brush 2 has multiple types and can be flexibly pushed out for use according to clinical needs. It can efficiently clean and brush the blood clots at the hemodialysis catheter connector. The pushable cotton twig 3 is used to clean the blood clots brushed out and complete the finishing work. It is convenient to use and highly practical.

[0050] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hemodialysis catheter hub cleaning brush, comprising: include: The outer shell (1) has a strip-like structure; The cleaning brush (2) is sealed inside the outer shell (1). The brush head (2012) at the end of the cleaning brush (2) can be pushed out of the membrane to the outside. The brush head (2012) is a strip rod with several bristles (2013) vertically connected on the rod. They are arranged in a ring as a group, and the bristles (2013) in each group are equally spaced. The cotton twig (3) and the relative cleaning brush (2) are sealed in the other end of the outer shell (1) and can be pushed out to the outside through the membrane.

2. A hemodialysis catheter hub cleaning brush according to claim 1, wherein: The cleaning brush (2) is arranged symmetrically in two parts, namely the first brush rod (201) and the second brush rod (202).

3. A hemodialysis catheter hub cleaning brush according to claim 2, wherein: The brush head (2012) of the first brush rod (201) has a fishbone-shaped cross-section, with the middle bristles (2013) protruding and longer than the bristles (2013) on both sides.

4. A cleaning brush for a hemodialysis catheter connector according to claim 3, characterized in that: The brush head (2012) of the second brush rod (202) is cylindrical.

5. A cleaning brush for a hemodialysis catheter connector according to claim 4, characterized in that: The outer casing (1) has a telescopic groove (101) for filling a cleaning brush (2) at one end. There are two telescopic grooves (101) arranged separately, and the outlet of the telescopic groove (101) is sealed with a plastic film (5).

6. A cleaning brush for a hemodialysis catheter connector according to claim 5, characterized in that: The cleaning brush (2) includes a crossbar (2011) that is integrated with the brush head (2012). The crossbar (2011) is located in the telescopic groove (101), and the end of the crossbar (2011) is connected to the bottom of the telescopic groove (101) by a spring (102). A push block (4) is fixedly connected to the crossbar (2011) via a plate. A sliding guide groove (104) is provided on the outer shell (1) to cooperate with the plate. The push block (4) is guided and pushed along the sliding groove (104) on the outer shell (1).

7. A cleaning brush for a hemodialysis catheter connector according to claim 6, characterized in that: The telescopic groove (101) is divided into two ends, and the groove section near the inner bottom is wider than the groove section at the outlet. A limiting ring (2014) is fixedly connected in the middle of the crossbar (2011), and the limiting ring (2014) moves to abut against the segment of the telescopic groove (101). A locking block (2015) is fixedly connected to the bottom of the crossbar (2011). The locking block (2015) includes a strip that opens outward at an angle. The end of the strip is hook-shaped. A slot (103) is opened on the telescopic groove (101). The locking block (2015) hooks into the slot (103).

8. A cleaning brush for a hemodialysis catheter connector according to claim 7, characterized in that: The outer shell (1) has a holding slot (105) inside, and the cotton twigs (3) are filled in the holding slot (105). The outlet of the holding slot (105) is also sealed by a plastic film (5).

9. A cleaning brush for a hemodialysis catheter connector according to claim 8, characterized in that: The rod of the cotton branch (3) is also fixedly connected to a push block (4) by a plate, and the outer shell (1) is provided with a corresponding sliding groove (104) to match the plate on the cotton branch (3).

10. A cleaning brush for a hemodialysis catheter connector according to claim 1, characterized in that: A scale (6) is provided on the back of the outer shell (1) opposite to the push block (4).

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