A painless catheterization kit

Abstract

This invention provides a painless urinary catheterization kit, relating to the field of medical device technology, and solves the technical problem of extremely high pain and discomfort during the insertion and removal of urinary catheters in existing technologies, resulting in a very poor experience. The device includes an independent drug delivery catheter and a urinary catheter. The drug delivery catheter is used to administer medication into the urethra, and its diameter d ≤ 2 mm. The urinary catheter has a side hole on its side wall, and a drug delivery channel communicating with the side hole is provided inside the urinary catheter. This invention allows for the pre-injection of anesthetic drugs and lubricating fluid into the urethra via the drug delivery catheter, ensuring sufficient anesthesia and lubrication during catheter insertion, thereby reducing pain during insertion. Similarly, during catheter removal, the drug delivery channel and side hole can be used to pre-inject anesthetic drugs and lubricating fluid into the urethra, further reducing pain during removal.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a painless urinary catheterization kit. Background Technology

[0002] Catheterization is a common procedure used to address urinary dysfunction and assist in disease treatment. Catheters come in different sizes, with 14-18 Fr being the most common. Men typically use 16-18 Fr catheters, while women commonly use 14-16 Fr. In special cases (such as urethral stricture or in children), smaller sizes like 10-12 Fr catheters may be needed. For patients requiring rapid drainage or blood clot removal, even 20-24 Fr catheters may be used. Due to physiological differences, female patients experience relatively less pain and discomfort during catheter insertion and removal. However, male patients often experience significant pain and discomfort, resulting in a very poor experience. Currently, commercially available catheters are typically lubricated before insertion; however, no anesthesia or lubrication is applied during insertion, leading to significant pain and discomfort. Utility Model Content

[0003] The purpose of this invention is to provide a painless catheterization kit, solving the technical problems of extreme pain and discomfort during catheter insertion and removal in existing technologies, resulting in a very poor user experience. The various technical effects of the preferred solutions among the many technical solutions provided by this invention are detailed below.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] This utility model provides a painless urinary catheterization kit, which includes an independent drug delivery catheter and a urinary catheter. The drug delivery catheter is used to administer drugs into the urethra. The diameter of the drug delivery catheter is ≤2 mm. The urinary catheter has a side hole on its side wall and a drug delivery channel communicating with the side hole inside the urinary catheter.

[0006] Preferably, the length of the drug delivery catheter is in the range of 10 cm to 20 cm.

[0007] Preferably, a connector is provided at one end of the drug delivery catheter.

[0008] Preferably, a guidewire is disposed inside the side wall of the inlet end of the catheter.

[0009] Preferably, the guidewire is a highly elastic guidewire.

[0010] Preferably, the number of side holes is at least two, and they are arranged sequentially from the head end to the tail end of the catheter.

[0011] Preferably, the size of the side hole gradually decreases from the head end to the tail end.

[0012] Preferably, at least two of the side holes are arranged spirally along the length of the catheter.

[0013] Preferably, the side hole is a strip hole, and the strip hole is spirally arranged along the outer wall of the catheter.

[0014] Preferably, the catheter is provided with a drug delivery connector at its tail end, and the drug delivery connector is in communication with the drug delivery channel.

[0015] The application employs the above technical solution and has at least the following beneficial effects:

[0016] A painless urinary catheterization kit includes an independent drug delivery catheter and a urinary catheter. The drug delivery catheter is used to administer drugs into the urethra, and the diameter of the drug delivery catheter is ≤2 mm. The urinary catheter has a side hole on its side wall and a drug delivery channel communicating with the side hole inside the urinary catheter. By using a smaller diameter drug delivery catheter to pre-administer drugs into the urethra, the thinner drug delivery catheter will not cause much pain. Furthermore, the pre-injection of anesthetic drugs and lubricating fluid can fully anesthetize and lubricate the urethra, thereby reducing pain during catheter insertion. Moreover, when removing the catheter, anesthetic drugs and lubricating fluid can be pre-injected into the urethra through the drug delivery channel and side hole, which can reduce pain during catheter removal.

[0017] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the painless urinary catheterization kit provided in this embodiment of the utility model;

[0020] Figure 2 This is a three-dimensional cross-sectional structural diagram of the end of the catheter tip provided in this embodiment of the utility model;

[0021] Figure 3 This is a schematic diagram of the drug delivery channel and side hole connection structure provided in an embodiment of the present invention.

[0022] In the diagram: 1. Drug delivery catheter; 2. Urinary catheter; 3. Side hole; 4. Drug delivery channel; 5. Connector; 6. Guide wire; 7. Drug delivery connector. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0024] A specific embodiment of this utility model provides a painless urinary catheterization kit, combined with the attached... Figure 1 As shown, it mainly includes an independent drug delivery catheter 1 and a urinary catheter 2;

[0025] The administration catheter 1 is used to administer medication into the urethra. In actual use, anesthetic drugs and lubricating fluid are injected into the urethra through the administration catheter 1 to fully anesthetize and lubricate the urethra. The diameter d of the administration catheter 1 is ≤2 mm. Therefore, a thinner administration catheter 1 is used to ensure that the insertion of the administration catheter does not cause much pain. This will reduce the patient's pain or even make the insertion of the urinary catheter 2 less painful.

[0026] The catheter 2 has a side hole 3 on its side wall and a drug delivery channel 4 that communicates with the side hole 3 inside the catheter 2. Before removal, anesthetic drugs and lubricating fluid can be injected into the urethra through the drug delivery channel 4 and the side hole 3 to fully anesthetize and lubricate the urethra, so that the patient's pain can be reduced or even painless when removing the catheter.

[0027] In a specific embodiment of this application, the length of the drug delivery catheter 1 ranges from 10 cm to 20 cm. Since the purpose of the drug delivery catheter 1 is to insert into the urethra a certain distance to administer the drug, its length does not need to be too long. It only needs to be no longer than the length of the patient's urethra. The specific length of the drug delivery catheter 1 can be 10 cm, 11 cm, 12 cm, 13 cm, 14 cm, 15 cm, 16 cm, 17 cm, 18 cm, 19 cm, 20 cm, etc.

[0028] Of course, depending on the actual situation, the length of the drug delivery catheter 1 can also be other sizes.

[0029] In some embodiments, a connector 5 is provided at one end of the drug delivery catheter 1. The connector 5 is used to connect to a syringe to facilitate the injection of anesthetic drugs and lubricating fluid. In order to facilitate medical staff to grasp the insertion depth, a scale can also be set on the drug delivery catheter 1. The scale is marked sequentially from the head end to the tail end of the drug delivery catheter 1. The scale includes 2 cm, 3 cm, 4 cm, 5 cm, 6 cm, 7 cm, 8 cm, 9 cm, 10 cm, etc. The color of the scale line can be red or blue, etc.

[0030] In some embodiments, a guide wire 6 is disposed within the side wall of the inlet end of the catheter 2. Since the inlet of the catheter 2 needs to be located on the side wall, the catheter, which is made of materials such as silicone, is prone to bending at the inlet, making insertion difficult. The guide wire 6 strengthens the inlet, ensuring smooth insertion. Specifically, the guide wire 6 can be a highly elastic guide wire, made of nickel-titanium alloy. Alternatively, other materials that ensure both elasticity and rigidity can be used.

[0031] Combined with appendix Figure 2 As shown, there can be two guidewires 6, which are located on the side walls on both sides of the urinary inlet.

[0032] In some embodiments, the number of side holes 3 is at least two, and the specific number can be two, three, etc., and they are arranged sequentially from the head end to the tail end of the catheter 2. The side holes 3 are distributed in different positions in the urethra, so that when anesthetic drugs and lubricating fluid are injected through the drug delivery channel 4, they can be distributed more evenly in the urethra, thus maximizing the anesthesia and lubrication of the urethra, thereby reducing or even eliminating the patient's pain when performing catheter removal.

[0033] Specifically, the size of the side holes 3 gradually decreases from the head end to the tail end of the catheter 2. That is, the side holes 3 near the internal urethral orifice are larger, while the side holes 3 near the external urethral orifice are relatively smaller. This can prevent the anesthetic drugs and lubricating fluid from being discharged only from the side holes 3 near the external urethral orifice when they are injected, thus making the injection more uniform.

[0034] In some embodiments, at least three side holes 3 are spirally arranged along the length of the catheter 2, which allows the injected anesthetic drugs and lubricants to be distributed more evenly in the urethra.

[0035] It should be noted that the drug delivery channel 4, urine passage channel, and injection channel inside the catheter 2 in this application are not interconnected; and to accommodate the spiral arrangement of the side hole 3, as shown in the attached... Figure 3 As shown, the drug delivery channel 4 can be set as a straight channel and connected to each side hole 3 through the secondary channels on both sides.

[0036] In some embodiments, the side hole 3 can also be designed as a strip hole, which is spirally arranged along the outer wall of the catheter 2. The spiral arrangement here does not mean that it will wrap around the outer wall of the catheter 2 once or even multiple times, but only in its extension direction. In order to ensure the strength of the catheter 2, the length of the side hole 3 should not be too long.

[0037] In some embodiments, the end of the catheter 2 is provided with a drug delivery connector 7, which communicates with the drug delivery channel 4. The drug delivery connector 7 is used to connect to a syringe for the injection of anesthetic drugs and lubricating fluid. The drug delivery connector 7 is a backflow preventer to ensure that the anesthetic drugs and lubricating fluid do not flow back after injection.

[0038] Since the urinary catheter 2 is also equipped with a connector for injecting water into the bladder, in order to easily distinguish the drug delivery connector 7 from other connectors, text labels, different colors, or different lengths can be set on the drug delivery connector 7, which will make it easier for medical staff to operate.

[0039] The method of using this painless urinary catheterization kit is as follows:

[0040] Open the painless catheterization kit and disinfect and drape it;

[0041] Lubricate the drug delivery catheter 1 and the urinary catheter 2;

[0042] When using the drug delivery catheter 1 to insert into the patient's urethra, it should be noted that the insertion depth of the drug delivery catheter 1 can be adjusted according to the actual situation. For example, when inserting a urinary catheter into a male patient, the insertion depth of the drug delivery catheter 1 can be 8 cm to 12 cm, while when inserting a urinary catheter into a female patient, the insertion depth of the drug delivery catheter 1 can be 4 cm to 8 cm. That is, the liquid outlet end of the drug delivery catheter 1 should be inserted into the middle of the patient's urethra.

[0043] The anesthetic drug and lubricant are injected into the urethra through a syringe via catheter 1. After injection, catheter 1 is slowly removed. Anesthetic drug and lubricant can be continuously injected during the removal process.

[0044] After the anesthetic takes effect, remove the lubricated urinary catheter 2 and perform the catheterization procedure;

[0045] After intubation, inject sterile fluid to inflate the sac.

[0046] After use, disconnect the tube:

[0047] Before extubation, anesthetic drugs and lubricating fluid are injected through drug delivery connector 7. The anesthetic drugs and lubricating fluid enter the urethra after passing through drug delivery channel 4 and side hole 3.

[0048] After the anesthetic takes effect, drain the fluid from the bladder and slowly pull out catheter 2.

[0049] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0050] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0051] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0052] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0053] In this utility model, the terms "one embodiment," "some embodiments," "example," "specific example," and "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0054] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A painless urinary catheterization kit, characterized in that, It includes an independent drug delivery catheter and a urinary catheter. The drug delivery catheter is used to administer drugs into the urethra. The diameter of the drug delivery catheter is ≤2 mm. The urinary catheter has a side hole on its side wall and a drug delivery channel communicating with the side hole inside the urinary catheter.

2. The painless catheterization kit according to claim 1, characterized in that, The length of the drug delivery catheter ranges from 10 cm to 20 cm.

3. The painless catheterization kit according to claim 1, characterized in that, One end of the drug delivery catheter is provided with a connector, and a depth indicator is provided on the drug delivery catheter.

4. The painless catheterization kit according to claim 1, characterized in that, A guidewire is installed inside the side wall of the inlet end of the catheter.

5. The painless catheterization kit according to claim 4, characterized in that, The guidewire is a highly elastic guidewire.

6. The painless catheterization kit according to claim 1, characterized in that, The number of side holes is at least two, and they are arranged sequentially from the head end to the tail end of the catheter.

7. The painless catheterization kit according to claim 6, characterized in that, The size of the side hole gradually decreases from the head end to the tail end.

8. The painless catheterization kit according to claim 6 or 7, characterized in that, At least two of the side holes are spirally arranged along the length of the catheter.

9. The painless catheterization kit according to claim 6, characterized in that, The side hole is a strip hole, and the strip hole is spirally arranged along the outer wall of the catheter.

10. The painless catheterization kit according to claim 1, characterized in that, The catheter is provided with a drug delivery connector at its tail end, and the drug delivery connector is connected to the drug delivery channel.

Images