A urethral catheter fixing device

Abstract

The utility model belongs to a kind of table body catheter fixer;Including adhesive sheet, one side of adhesive sheet is adhesive layer, the other side is provided with support sheet, the edge of adhesive sheet extends outward relative to support sheet, two fixed clamps are provided on support sheet, seat is provided between two fixed clamps, two movable clamps are connected on seat, one fixed clamp and one movable clamp constitute a pipe clamp, two fixed clamps and two movable clamps constitute the pipe clamp of the main pipe and branch pipe of fixed catheter, seat can drive movable clamp to approach or away from fixed clamp, so that pipe clamp is in clamping state or release state;Through two adjustable pipe clamps, main pipe and branch pipe of catheter can be clamped simultaneously, realize multi-point fixing, effectively prevent catheter displacement or drop‌;The clamping / release state switching of pipe clamp simplifies the installation and disassembly process of catheter, facilitate medical staff quick operation, simultaneously reduce the demand of frequent replacement of adhesive tape‌.

Description

Technical Field

[0001] This utility model belongs to the field of medical auxiliary devices, specifically relating to a surface catheter fixator. Background Technology

[0002] With advancements in medical technology and the diversification of clinical needs, urinary catheters, as common invasive medical devices, are widely used in postoperative monitoring and long-term bedridden patient care. However, proper catheter fixation directly affects patient comfort, tubing safety, and the incidence of complications. Currently available surface-mount catheter fixation patches still have the following technical shortcomings:

[0003] I. Material design defects leading to skin damage: Traditional fixation patches often use high-hardness medical plastic sheets combined with an adhesive layer. While these provide initial fixation, their physical properties are severely mismatched with the dynamic needs of human movement. Patients experience repeated friction and shearing forces during everyday actions such as turning over and sitting up. This creates localized high-pressure areas where the plastic sheet edges contact the skin. Prolonged pressure can lead to epidermal ischemia and necrosis, manifesting as pressure marks, redness, swelling, or even blisters. This type of injury is particularly dangerous for elderly patients or those with fragile skin (such as those with diabetes and peripheral neuropathy), as it may further develop into pressure injuries.

[0004] Second, the fixation method is complex and unreliable; traditional fixation methods rely on multiple layers of wrapping, which is cumbersome and time-consuming; nursing staff need to repeatedly wrap and bind the fixation; the time required for a single operation is significantly increased, especially in emergency or intensive care scenarios, where it is easier to become flustered and inefficient. Utility Model Content

[0005] One object of this invention is to solve at least the problems described above and to provide at least the advantages that will be explained later.

[0006] This utility model provides the following technical solution: a surface catheter fixator, including an adhesive sheet, one side of which is an adhesive layer and the other side is provided with a support sheet. The edge of the adhesive sheet extends outward relative to the support sheet. Two fixing clamps are provided on the support sheet. A seat is provided between the two fixing clamps. Two movable clamps are connected to the seat. One fixed clamp and one movable clamp constitute a tube clamp. The two fixed clamps and two movable clamps constitute a tube clamp for fixing the main tube and branch tube of the catheter. The seat can drive the movable clamps to approach or move away from the fixed clamps, so that the tube clamp is in a clamped state or a released state.

[0007] Furthermore, the seat includes a top plate, a bottom plate, and two elastic side plates. The two side plates are connected between the top plate and the bottom plate. The bottom plate is fixedly connected to the support plate. The movable clamp is connected to the middle of the side plates in the height direction. A movable screw passes through the top plate from top to bottom. A vertical tube with internal threads is fixed on the bottom plate. The screw is screwed into the thread of the vertical tube.

[0008] Furthermore, the top plate, bottom plate, and side plates are made of plastic and are connected as a whole, with the top plate and bottom plate being thicker than the side plates.

[0009] Furthermore, the pipe clamp is in the released state, and the height of the movable clamp is higher than that of the fixed clamp.

[0010] Furthermore, the side of the fixed clamp that contacts the catheter is a curved surface that fits into the outer wall of the catheter; the side of the movable clamp that contacts the catheter is also a curved surface that fits into the outer wall of the catheter.

[0011] Furthermore, the curved surface of the fixed clamp is inclined upwards, while the curved surface of the movable clamp is inclined downwards.

[0012] Furthermore, the support sheet is elliptical, and the adhesive sheet is an elliptical shape concentric with the support sheet.

[0013] Furthermore, the adhesive sheet is a silicone pad.

[0014] Compared with the prior art, the advantages of this utility model are:

[0015] This utility model provides a surface-mount urinary catheter fixator. Through two adjustable clamps (consisting of a fixed clamp and a movable clamp respectively), it can simultaneously clamp the main and branch channels of the urinary catheter, achieving multi-point fixation and effectively preventing catheter displacement or dislodgement. The clamping / releasing state switching simplifies the installation and removal process of the urinary catheter, facilitating quick operation by medical staff and reducing the need for frequent tape changes. The combined design of the adhesive layer and support sheet adapts to the skin's curvature, enhancing waterproof and oil-resistant properties and extending the effective service life of the fixator. The concentric design of the elliptical support sheet and the silicone adhesive sheet better conforms to the natural curve of the thigh or groin area, reducing the risk of adhesive failure due to edge lifting. Simultaneously, the soft and elastic silicone material adapts to dynamic skin changes (such as muscle contraction or limb movement), reducing friction, irritation, and foreign body sensation. The silicone pad has excellent biocompatibility, reducing sensitization reactions in sensitive skin, making it particularly suitable for patients with long-term indwelling catheters. Attached Figure Description

[0016] Figure 1 A three-dimensional view of the urinary catheter fixation device;

[0017] Figure 2 This is a schematic diagram showing the released state of the urinary catheter fixation device.

[0018] Figure 3 This is a schematic diagram showing the clamped state of the urinary catheter fixator.

[0019] Figure 4 This is a schematic diagram of how the catheter clamps and secures the catheter.

[0020] In the diagram: 1-Adhesive sheet; 2-Support sheet; 3-Fixing clamp; 4-Fixing clamp; 4.1-Top plate; 4.2-Bottom plate; 4.3-Side plate; 4.4-Screw; 4.5-Upper tube; 5-Modible clamp; 6-Urinary catheter. Detailed Implementation

[0021] 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.

[0022] like Figures 1-4 As shown: A surface catheter fixation device includes an adhesive sheet 1, one side of which is an adhesive layer and the other side is provided with a support sheet 2. The adhesive sheet 1 can be adhered to the skin through the adhesive layer. The edge of the adhesive sheet 1 extends outward relative to the support sheet 2. Two fixing clamps 3 are provided on the support sheet 2. A seat 4 is provided between the two fixing clamps 3. Two movable clamps 5 are connected to the seat 4. One fixing clamp 3 and one movable clamp 5 constitute a tube clamp. The two fixing clamps 3 and the two movable clamps 5 constitute a tube clamp for fixing the main tube and branch tube of the catheter. The seat 4 can drive the movable clamps 5 to approach or move away from the fixing clamps 3, so that the tube clamp is in a clamped state or a released state.

[0023] The base 4 includes a top plate 4.1, a bottom plate 4.2, and two elastic side plates 4.3. The two side plates 4.3 are connected between the top plate 4.1 and the bottom plate 4.2. The top plate 4.1 and the bottom plate 4.2 have a certain rigidity and can basically maintain their original shape when compressed. The bottom plate 4.2 is fixedly connected to the support plate 2. The movable clamping plate 5 is connected to the middle of the side plate 4.3 in the height direction. A movable screw 4.4 passes through the top plate 4.1 from top to bottom. A vertical tube 4.5 with internal threads is fixed on the bottom plate 4.2. The screw 4.4 is screwed into the vertical tube 4.5.

[0024] The threaded engagement design of screw 4.4 and riser 4.5 allows for quick adjustment of the distance between the top plate 4.1 and the bottom plate 4.2 by rotating screw 4.4, thereby adjusting the deformation of the elastic side plate 4.3 and enabling rapid clamping of the catheter by the movable clamp 5 and the fixed clamp 3. Compared to existing bandage-type fixation structures, this method is simpler to operate, more standardized, and the fixation effect is not affected by the medical staff's skills.

[0025] The top plate 4.1, bottom plate 4.2, and side plates 4.3 are made of plastic and are connected as a single unit. The top plate 4.1 and bottom plate 4.2 are thicker than the side plates 4.3, so that the top plate 4.1 can maintain its original shape when the side plates 4.3 deform. The fixed clamp 3, movable clamp 5, support plate 2, screw 4.4, and riser 4.5 are also made of plastic. The entire fixation device is lightweight, comfortable for patients to wear, and has low manufacturing and usage costs. Combined with the aforementioned operating method, it benefits both patients and medical staff.

[0026] As the side plate 4.3 deforms and its height decreases, the height of the movable clamp 5 also decreases accordingly. Therefore, when the catheter clamp is in the released state, the height of the movable clamp 5 is higher than that of the fixed clamp 3. When the catheter clamp is in the clamped state, the movable clamp 5 applies a lateral pushing force and downward pressure to the catheter, making the catheter more securely fixed.

[0027] Furthermore, the curved surface of the fixed clamp 3 is inclined upwards, and the curved surface of the movable clamp 5 is inclined downwards; when the movable clamp 5 moves toward and down towards the fixed clamp 3, the fixed clamp 3 and the movable clamp 5 can stably hold the catheter.

[0028] The side of the fixed clamp 3 that contacts the catheter is a curved surface that fits into the outer wall of the catheter; the side of the movable clamp 5 that contacts the catheter is also a curved surface that fits into the outer wall of the catheter. The curved surfaces of the fixed clamp 3 and the movable clamp 5 fit perfectly into the outer wall of the catheter, and the clamping force is evenly distributed, avoiding compression of the catheter and obstruction of fluid flow.

[0029] Adhesive patch 1 is a silicone pad. Support patch 2 is elliptical, and adhesive patch 1 is concentric with support patch 2. The concentric design of the elliptical silicone adhesive patch 1 and support patch 2 reduces friction and pressure on the skin edges, making it especially suitable for skin protection for patients who are bedridden for a long time.

[0030] The curved surface of the fixed clamp 3 is half a circle, and the curved surface of the movable clamp 5 is less than half a circle, which facilitates the insertion of the catheter. Of course, the catheter is a rubber tube, and the inlet of the clamp is smaller than the outer diameter of the rubber tube, so the rubber tube can also be inserted.

[0031] The method of using a transdermal catheter fixator is as follows:

[0032] S1: Clean and dry the skin on the patient's inner thighs or groin area, ensuring it is free of oil and dirt;

[0033] S2: Apply the adhesive layer of adhesive sheet 1 to the skin and press the edge extension to ensure full adhesion;

[0034] S3: Place the main and branch catheters of the urinary catheter into the curved grooves of the corresponding fixing clamps 3;

[0035] S4: Rotate screw 4.4 to press down the movable clamping plate 5 until the conduit is tightly fixed by the curved clamping structure; S5: When disassembling, rotate screw 4.4 in the opposite direction to release the conduit and peel off the silicone adhesive sheet 1.

[0036] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A transdermal catheter fixation device, characterized in that: The device includes an adhesive sheet (1), one side of which is an adhesive layer and the other side is provided with a support sheet (2). The edge of the adhesive sheet (1) extends outward relative to the support sheet (2). Two fixed clamps (3) are provided on the support sheet (2). A seat (4) is provided between the two fixed clamps (3). Two movable clamps (5) are connected to the seat (4). One fixed clamp (3) and one movable clamp (5) constitute a tube clamp. The two fixed clamps (3) and the two movable clamps (5) constitute the tube clamps for fixing the main tube and branch tube of the urinary catheter. The seat (4) can drive the movable clamps (5) to approach or move away from the fixed clamps (3), so that the tube clamp is in a clamped state or a released state.

2. The urinary catheter fixation device according to claim 1, characterized in that: The seat (4) includes a top plate (4.1), a bottom plate (4.2) and two elastic side plates (4.3). The two side plates (4.3) are connected between the top plate (4.1) and the bottom plate (4.2). The bottom plate (4.2) is fixedly connected to the support plate (2). The movable clamp (5) is connected to the middle of the side plate (4.3) in the height direction. A movable screw (4.4) is inserted from top to bottom on the top plate (4.1). A vertical tube (4.5) with internal threads is fixed on the bottom plate (4.2). The screw (4.4) is screwed into the vertical tube (4.5).

3. The urinary catheter fixation device according to claim 2, characterized in that: The top plate (4.1), bottom plate (4.2) and side plate (4.3) are made of plastic and are connected as a whole. The top plate (4.1) and bottom plate (4.2) are thicker than the side plate (4.3).

4. A urinary catheter fixator according to claim 2, characterized in that: The pipe clamp is in the released state, and the height of the movable clamp (5) is higher than that of the fixed clamp (3).

5. A urinary catheter fixator according to claim 4, characterized in that: The fixed clamp (3) has a curved surface that fits the outer wall of the catheter on the side that contacts the catheter; the movable clamp (5) has a curved surface that fits the outer wall of the catheter on the side that contacts the catheter.

6. A urinary catheter fixator according to claim 5, characterized in that: The curved surface of the fixed clamp (3) is inclined upward, and the curved surface of the movable clamp (5) is inclined downward.

7. A urinary catheter fixation device according to any one of claims 1 to 6, characterized in that: The support sheet (2) is elliptical, and the adhesive sheet (1) is an elliptical concentric with the support sheet (2).

8. A urinary catheter fixator according to any one of claims 1 to 6, characterized in that: The adhesive sheet (1) is a silicone pad.

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