Rotary cutting catheter tip collector and collection method

Abstract

The rotary cutting catheter tip collector belongs to the field of medical devices. The present invention includes a bottle body, a lower mounting cover, an upper rotating cover and a blade. The bottle body is a bottle structure with an opening at the top. The lower mounting cover is mounted on the top of the bottle body. The upper rotating cover is arranged on the outside of the top of the lower mounting cover. The top of the upper rotating cover is provided with an opening. The top of the lower mounting cover is provided with a collection hole. The lower mounting cover is also processed with a blade rotating chute. The blade is placed in the blade rotating chute, and the end of the blade is fixedly connected to the inner side of the upper rotating cover. The blade tip is arranged toward the opening of the upper rotating cover. The research and development purpose of the present invention is to solve the problem of facilitating medical staff to collect the tip of the catheter. The fixed setting of the lower mounting cover of the present invention fixes the catheter in the bottle and is easy to cut off. The upper rotating cover is equipped with a blade for cutting the catheter, which is easy to operate and shortens the operation time to avoid contamination. The structure is simple, the design is ingenious, the disassembly and assembly are convenient, the size is moderate, and the clinical use is simple and convenient.

Description

Technical Field

[0001] The invention relates to a rotary catheter tip cutting collector, belonging to the field of medical devices. Background Art

[0002] With the aging of my country's population, the increasing incidence of numerous chronic diseases, and the growing need for treatment of critically ill patients, the demands on intensive care units (ICUs) are becoming increasingly stringent. How to better treat these individuals has become the goal of current medical development. In order to ensure the nutritional needs of critically ill patients and to continuously administer corrosive and high-osmotic pressure liquid medications to some patients, venous access devices are playing an increasingly important role. The occurrence of nosocomial infections is not related to the number of invasive catheters inserted, but rather to the duration of their placement. The independent risk factor for nosocomial infections is the duration of these placements. However, because patients admitted to the ICU are critically ill and have low immunity, removing the intravenous catheter and performing a catheter tip culture is extremely important for assessing the patient's condition.

[0003] Currently, there is still no unified container for catheter tip culture in clinical practice. At the same time, the catheter tip is relatively sharp. Some hospitals use the lower end container of the sputum collector as a collector, which is cumbersome and time-consuming. The catheter is exposed to the air for a long time and is easily contaminated by miscellaneous bacteria. In summary, this may lead to erroneous experimental culture results, causing medical staff to misjudge the infection or source of infection, and even threaten the patient's life.

[0004] Therefore, there is an urgent need to propose a new type of rotary cutting catheter tip collector to solve the above technical problems. Summary of the Invention

[0005] The present invention was developed to address the problem of facilitating catheter tip collection by medical personnel. A brief overview of the invention is provided below to provide a basic understanding of certain aspects of the invention. It should be understood that this overview is not an exhaustive overview of the invention. It is not intended to identify key or essential aspects of the invention, nor is it intended to limit the scope of the invention.

[0006] The technical solution of the present invention:

[0007] A rotary cutting catheter tip collector includes a bottle body, a lower mounting cover, an upper rotating cover and a blade. The bottle body is a bottle structure with an opening at the top. The lower mounting cover is installed on the top of the bottle body. The upper rotating cover is arranged on the outside of the top of the lower mounting cover. The top of the upper rotating cover is provided with an opening. The top of the lower mounting cover is provided with a collecting hole. A blade rotating slot is also processed on the lower mounting cover. The blade is placed in the blade rotating slot, and the end of the blade is fixedly connected to the inner side of the upper rotating cover. The tip of the blade is arranged facing the opening of the upper rotating cover.

[0008] Preferably, the inner side wall of the lower end of the lower mounting cover and the outer side wall of the middle portion of the upper rotating cover are connected via a plurality of connecting blocks.

[0009] Preferably, the inner side wall of the lower end of the lower mounting cover and the outer side wall of the middle portion of the upper rotating cover establish a sliding fit through a sliding protrusion and a sliding groove.

[0010] In order to solve the problem of detachable installation of the lower mounting cover and the bottle body, the present invention proposes the following technical solutions:

[0011] Preferably, the lower mounting cover is threadably matched with the top of the bottle body.

[0012] Preferably, an L-shaped buckle is provided at the bottom of the lower mounting cover, a snap-fitting protrusion is provided on the inner side wall of the top of the bottle body, and the lower mounting cover is connected to the bottle body through snap-fitting cooperation between the L-shaped buckle and the snap-fitting protrusion.

[0013] In order to solve the problem of positioning the catheter body during cutting, the present invention provides the following technical solutions:

[0014] Preferably, a communicating locking hole is provided on one side of the collecting hole.

[0015] In order to solve the problem of sealing and facilitating the placement of the cut catheter tip, the present invention provides the following technical solutions:

[0016] Preferably, a sealing cover is provided on the top of the upper rotating cover.

[0017] Preferably, a base is provided at the bottom of the bottle body.

[0018] Rotary cutting catheter tip collection method:

[0019] Step 1: Rotate and fix the lower mounting cover on the top of the bottle body. At this time, due to the fixed connection of the connecting block, the upper rotating cover and the lower mounting cover are semi-connected and rotate synchronously;

[0020] Step 2: Pass the catheter with a tip through the opening and the collection hole in sequence and into the bottle;

[0021] Step 3, install the catheter into the clamping hole;

[0022] Step 4: Manually rotate the upper rotating cover with force to break the connecting block between the upper rotating cover and the lower mounting cover, so that the lower mounting cover and the upper rotating cover can rotate relative to each other;

[0023] Step 5: While the lower mounting cover and the upper rotating cover rotate relative to each other, the blade rotates along with the upper rotating cover and performs rotary cutting on the conduit above the positioning hole, with the tip placed inside the bottle body;

[0024] Step 6: After cutting, seal the rotating cap with a sealing cap to complete the cutting and sealed storage of the catheter tip.

[0025] The present invention has the following beneficial effects:

[0026] 1. The rotary cutting catheter tip collector of the present invention has a fixed lower mounting cover, which secures the catheter in place within the bottle and facilitates cutting. The upper rotating cover is equipped with a blade for cutting the catheter, eliminating the need for other sharp tools. This makes operation easy, shortens operation time, and reduces contamination.

[0027] 2. The rotary cutting catheter tip collector of the present invention has a simple structure, ingenious design, easy assembly and disassembly, moderate size, and is easy and convenient to operate in clinical use;

[0028] 3. The rotary cutting catheter tip collector of the present invention has a collection hole diameter suitable for common in-vivo catheters in clinical practice. Even blood filtration catheters made of harder materials and with larger diameters can be stably fixed in the collection hole, preventing them from loosening during the cutting process and causing operational failure.

[0029] 4. The rotary cutting catheter tip collector of the present invention is constructed entirely of common medical materials that are readily available and affordable, allowing for mass production. If implemented, it could significantly reduce labor and time costs, eliminating the time-consuming operation of multiple personnel during emergencies. The device's sophisticated design, with the fixture and cutting mechanisms complementing each other, essentially allows for single-person operation, maintaining a sterile environment after the cut catheter tip is removed. This allows for faster and more accurate identification of infection sources, simplifies the operational process, and reduces the workload of medical personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is a perspective view of a rotary cutting catheter tip collector;

[0031] Figure 2 is a top view of the rotary cutting catheter tip collector;

[0032] Figure 3 yes Figure 2 AA cross-section of

[0033] Figure 4 yes Figure 2 BB cross-section diagram;

[0034] Figure 5 It is a three-dimensional diagram of the bottle of the present invention;

[0035] Figure 6 is a perspective view of the lower mounting cover of the present invention;

[0036] Figure 7 This is a structural diagram of the lower mounting cover of the present invention;

[0037] Figure 8is a three-dimensional diagram of the upper rotating cover of the present invention;

[0038] Figure 9 It is a structural diagram of the upper rotating cover of the present invention;

[0039] In the figure, 1-bottle body, 2-lower mounting cover, 3-upper rotating cover, 4-blade, 5-connecting block, 11-clamping protrusion, 21-collecting hole, 22-blade rotating slide, 23-L-shaped buckle, 31-opening, 211-locking hole. DETAILED DESCRIPTION

[0040] To make the objectives, technical solutions, and advantages of the present invention more clearly apparent, the present invention is described below using specific embodiments shown in the accompanying drawings. However, it should be understood that these descriptions are merely illustrative and are not intended to limit the scope of the present invention. In addition, in the following description, descriptions of well-known structures and technologies are omitted to avoid unnecessary confusion of the concepts of the present invention.

[0041] The connections mentioned in the present invention are divided into fixed connections and detachable connections. The fixed connection refers to a non-detachable connection, including but not limited to conventional fixed connection methods such as hem connection, rivet connection, adhesive connection, and welding connection. The detachable connection refers to but not limited to conventional detachable connection methods such as threaded connection, snap connection, pin connection, and hinge connection. When the specific connection method is not clearly specified, it is assumed that at least one connection method can always be found among the existing connection methods to achieve the function. Those skilled in the art can choose according to their needs. For example, a welded connection is selected for a fixed connection, and a hinge connection is selected for a detachable connection.

[0042] Specific implementation method 1: Combination Figures 1-9 Describe this embodiment. The rotary cutting catheter tip collector of this embodiment includes a bottle body 1, a lower mounting cover 2, an upper rotating cover 3 and a blade 4. The bottle body 1 is a bottle structure with an open top. The lower mounting cover 2 is installed on the top of the bottle body 1. The upper rotating cover 3 is arranged on the outside of the top of the lower mounting cover 2. An opening 31 is provided on the top of the upper rotating cover 3. A collecting hole 21 is provided on the top of the lower mounting cover 2. A blade rotating groove 22 is also processed on the lower mounting cover 2. The blade 4 is fixedly embedded in the blade rotating groove 22, and the end of the blade 4 is fixedly connected to the inner side of the upper rotating cover 3. The tip of the blade 4 is arranged toward the opening 31 of the upper rotating cover 3.

[0043] The bottle body 1 is made of medical PVC material commonly used in clinical practice to ensure sterility, is cheap and easy to obtain, and can be used in large quantities during production. The blade 4 is made of stainless steel to ensure the quality and speed of cutting. The lower mounting cover 2 and the upper rotating cover 3 are made of a harder plastic, mostly polyethylene used for aseptic cold filling, to ensure a sterile environment to the greatest extent possible under the premise that the device can be used smoothly and safely.

[0044] The inner sidewall at the lower end of the lower mounting cover 2 is connected to the outer sidewall at the middle of the upper rotating cover 3 by a plurality of connecting blocks 5. The connecting blocks 5 are made of a material that is easily broken, such as PVC or plastic. After the lower mounting cover 2 is fixed, the upper rotating cover 3 is manually screwed on with force, and the connecting blocks 5 break, allowing the lower mounting cover 2 and the upper rotating cover 3 to rotate relative to each other. The principle is similar to that of a beverage bottle cap.

[0045] In a more preferred embodiment, the lower inner wall of the lower mounting cover 2 and the middle outer wall of the upper rotating cover 3 are slidably engaged via a sliding protrusion and a sliding groove. The lower inner wall of the lower mounting cover 2 is machined with a sliding protrusion, and the middle outer wall of the upper rotating cover 3 is machined with a sliding groove. The sliding protrusion slides within the groove, establishing a relative rotational and sliding connection between the lower mounting cover 2 and the upper rotating cover 3.

[0046] The bottom of the lower mounting cover 2 is provided with an L-shaped buckle 23, and the inner wall of the top of the bottle body 1 is provided with a snap-fitting protrusion 11. The lower mounting cover 2 is snap-fitted to the bottle body 1 through the L-shaped buckle 23 and the snap-fitting protrusion 11. The lower mounting cover 2 can be installed and removed from the bottle body 1 by rotating it. During the rotation process, the lower mounting cover 2 and the snap-fitting protrusion 11 engage with each other in a slot to secure it.

[0047] In a more preferred technical solution, the lower mounting cap 2 is threadedly engaged with the top of the bottle body 1. The lower mounting cap 2 can be mounted on and removed from the bottle body 1 by rotating it.

[0048] A connecting retaining hole 211 is provided on one side of the collection hole 21. The caliber of the collection hole 21 is suitable for common in-vivo catheters in clinical practice. Even blood filtration catheters made of harder materials and with larger calibers can be stably fixed in the retaining hole 211, preventing them from loosening during cutting and causing operational failure.

[0049] A sealing cover is provided on the top of the upper rotating cover 3 to ensure the sealing of the device.

[0050] A base is provided at the bottom of the bottle body 1 .

[0051] A more preferred technical solution is to install a rotating bottom cap at the bottom of the bottle body 1 for removing the cap with a blade on the upper part of the collected catheter, namely the lower mounting cap 2 and the upper rotating cap 3. After inspection, it is not opened and can be directly discarded. A silicone seal is installed on the outside of the rotating bottom cap to ensure sterility.

[0052] The specific method of using the rotary cutting catheter tip collector based on this embodiment is as follows:

[0053] Step 1: Rotate and fix the lower mounting cover 2 on the top of the bottle body 1. At this time, due to the fixed connection of the connecting block 5, the upper rotating cover 3 and the lower mounting cover 2 are semi-connected and rotate synchronously;

[0054] Step 2: Pass the catheter with a tip through the opening 31 and the collecting hole 21 in sequence and into the bottle body 1;

[0055] Step 3: Install the catheter into the clamping hole 211.

[0056] Step 4: Manually rotate the upper rotating cover 3 with force, so that the connecting block 5 between the upper rotating cover 3 and the lower mounting cover 2 breaks, and the lower mounting cover 2 and the upper rotating cover 3 achieve relative rotation;

[0057] Step 5: While the lower mounting cover 2 and the upper rotating cover 3 are rotating relative to each other, the blade 4 rotates along with the upper rotating cover 3 and performs rotary cutting on the conduit above the positioning hole 211, with the tip placed inside the bottle body 1;

[0058] Step 6: After cutting, use a sealing cover to seal the rotating cover 3, thus completing the cutting and sealed storage of the catheter tip.

[0059] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0060] Unless otherwise specifically stated, the relative arrangement of the parts and steps, the numerical expressions and the numerical values ​​set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The techniques, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific values ​​should be interpreted as being merely exemplary and not as limiting. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0061] In the description of the present invention, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0062] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0063] It should be noted that the terms "first," "second," and the like in the specification and claims of this application and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0064] It should be noted that in the above embodiments, as long as the technical solutions are not contradictory, they can be permuted and combined. Those skilled in the art can exhaust all possibilities based on the mathematical knowledge of permutations and combinations. Therefore, the present invention will no longer describe the technical solutions after permutations and combinations one by one, but it should be understood that the technical solutions after permutations and combinations have been disclosed by the present invention.

[0065] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. Rotary cutting catheter tip collector, characterized by: The invention comprises a bottle body (1), a lower mounting cover (2), an upper rotating cover (3) and a blade (4), wherein the bottle body (1) is a bottle structure with an opening at the top, the lower mounting cover (2) is mounted on the top of the bottle body (1), the upper rotating cover (3) is arranged on the outer side of the top of the lower mounting cover (2), the top of the upper rotating cover (3) is provided with an opening (31), the top of the lower mounting cover (2) is provided with a collecting hole (21), the lower mounting cover (2) is further provided with a blade rotating chute (22), the blade (4) is placed in the blade rotating chute (22), and the end of the blade (4) is fixedly connected to the inner side of the upper rotating cover (3), and the tip of the blade (4) is arranged toward the opening (31) of the upper rotating cover (3); the inner side wall of the lower end of the lower mounting cover (2) and the outer side of the middle part of the upper rotating cover (3) are connected. The walls are connected by a plurality of connecting blocks (5); the bottom of the lower mounting cover (2) is provided with an L-shaped buckle (23), the inner wall of the top of the bottle body (1) is provided with a snap-fitting protrusion (11), and the lower mounting cover (2) and the bottle body (1) are snap-fitted and connected through the L-shaped buckle (23) and the snap-fitting protrusion (11); a communicating snap-fitting hole (211) is provided on one side of the collecting hole (21); the bottom end of the bottle body (1) is provided with a bottom cover, and a silicone sealing sleeve is provided on the outer side of the bottom cover; the top of the upper rotating cover (3) is provided with a sealing cover; the caliber of the collecting hole (21) is suitable for clinical in-vivo catheterization, and even a blood filtration catheter made of a harder material and a larger caliber can be stably fixed in the snap-fitting hole (211), and will not loosen during the cutting process, resulting in operation failure; Also included is a rotary cutting catheter tip harvesting method, including: Step 1: Rotate and fix the lower mounting cover (2) on the top of the bottle body (1). At this time, due to the fixed connection of the connecting block (5), the upper rotating cover (3) and the lower mounting cover (2) are semi-connected and rotate synchronously; Step 2, passing the catheter with a tip through the opening (31) and the collection hole (21) in sequence, and then entering the interior of the bottle body (1); Step 3, clamp the catheter into the clamping hole (211); Step 4, manually rotating the upper rotating cover (3) with force, the connecting block (5) between the upper rotating cover (3) and the lower mounting cover (2) breaks, and the lower mounting cover (2) and the upper rotating cover (3) achieve relative rotation; Step 5: while the lower mounting cover (2) and the upper rotating cover (3) are rotating relative to each other, the blade (4) rotates along with the upper rotating cover (3) and performs a rotational cut on the conduit above the positioning hole (211), with the tip being placed inside the bottle body (1); Step 6: After cutting, seal the rotating cap (3) with a sealing cap, thus completing the cutting and sealing of the catheter tip for storage. After inspection, do not open it and discard it directly; The bottom of the bottle body (1) is provided with a base; The connecting block (5) is made of a material that is easy to break, and a silicone sealing sleeve is installed on the outside of the rotating bottom cover.

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