Hemodialysis catheter fixing device

Abstract

The utility model relates to a hemodialysis catheter fixing device in the technical field of medical instruments, which comprises a first clamping piece, a second clamping piece and a third clamping piece, the first clamping piece comprises an elastic arc-shaped plate made of plastics, and the arc-shaped plate clamps a round bedside handrail during use and can be rotatably adjusted based on the round bedside handrail; the second clamping piece is at least provided with a catheter locking groove used for locking the catheter and allowing the catheter to penetrate through, and the second clamping piece is connected with the first clamping piece. Compared with the prior art, the structure is more simplified, only the first clamping piece and the second clamping piece need to be arranged, and operation is very convenient. The arc-shaped plate of the first clamping piece is driven by the elasticity of the arc-shaped plate to clamp the bedside handrail, and the position of the catheter is fixed by the catheter locking groove of the second clamping piece, that is, the catheter can be firmly fixed at the position of the side edge of a sickbed only by inserting the catheter into the catheter locking groove.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument technical field, concretely is a hemodialysis catheter fixing device. BACKGROUND

[0002] Blood purification technology refers to the general term of various continuous or intermittent methods for removing excessive water, solutes and the like in the body, which is commonly referred to as hemodialysis in daily life. The methods of blood purification include renal replacement therapy, hemoperfusion, immunoadsorption, endotoxin adsorption and plasma exchange. Each blood purification method has its own characteristics and is suitable for different diseases or different disease states. However, regardless of the type of blood purification, an effective venous access, also known as blood access, must be established first, the blood in the patient's body is drawn from the arterial end, and after being treated by extracorporeal purification, it is input into the human body through the venous end. Therefore, establishing an effective and unobstructed blood access is a basic condition for realizing blood purification.

[0003] At present, the method of connecting hemodialysis machine by disposable hemodialysis pipeline is commonly used in clinic to establish blood purification treatment. During the treatment process, the hemodialysis catheter needs to be fixed, and the existing fixing device is generally simple, such as using adhesive tape to adhere the catheter to the bed side rail of the bed. Such operation often results in insufficiently firm catheter fixation.

[0004] In order to solve the problem of insufficiently firm catheter fixation, a scheme is proposed in the prior art, and the patent application file with publication number CN118121813A discloses a multifunctional catheter fixing device, which comprises a support frame, a clamping plate is fixed at the bottom end of the support frame, a fixing assembly is arranged in the clamping plate, the clamping plate is inserted into the side plate of the bed during use, and the clamping plate and the bed side plate are fixed through the fixing assembly; an arc hollow block is fixed at the top of the support frame, a moving mechanism is arranged in the arc hollow block, and the moving mechanism moves in the arc-shaped groove of the arc hollow block. The pipeline and the line are moved to the side where the patient wears (uses) the medical instrument through the moving mechanism, and when the patient turns over or turns on one side, various pipelines and lines rotate around the horizontal shaft, so that the length of the pipelines and lines is not increased, and different body positions of the patient can be adapted.

[0005] Although the scheme described in the patent application file with publication number CN118121813A solves the problem of firm catheter fixation, the structure is very complex, including a support frame, a clamping plate, and a fixing assembly arranged in the clamping plate, and it is necessary to configure an arc hollow block, a moving mechanism and other components, resulting in high use cost and increased consumption. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing a hemodialysis catheter fixing device, which adopts a simpler structure to fix the position of the catheter and is convenient to manufacture.

[0007] The utility model discloses a hemodialysis catheter fixing device, including,

[0008] The first clamping piece comprises an arc-shaped plate made of plastic and having elasticity, which clamps the round bed side rail and is rotatably adjusted based on the round bed side rail in use.

[0009] The second clamping piece is provided with at least one catheter locking groove for locking the catheter and accommodating the catheter therethrough, and is connected to the first clamping piece.

[0010] The utility model has the advantages of:

[0011] 1. Compared with the prior art, the structure is simplified, only the first clamping piece and the second clamping piece are needed, and the operation is very convenient.

[0012] 2. The arc-shaped plate itself is used to drive the arc-shaped plate of the first clamping piece to clamp the bed side rail, and the catheter locking groove of the second clamping piece is used to fix the position of the catheter, that is, only the catheter needs to be inserted into the catheter locking groove, and the catheter can be firmly fixed at the position of the bed side.

[0013] 3. In addition, the arc-shaped plate of the first clamping piece clamps the bed side rail, and the bed side rail is generally in the form of a round rod, so that the first clamping piece can be rotatably adjusted based on the bed side rail, thereby rotatably adjusting the position of the catheter and more conveniently adjusting the position of the catheter. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a schematic view of embodiment one of the utility model.

[0015] Figure 2 is Figure 1 the left view.

[0016] Figure 3 is a schematic view of rotatably adjusting the second clamping piece in embodiment one.

[0017] Figure 4 is a schematic view of the locking scheme of the second clamping piece.

[0018] Figure 5 is a schematic view of embodiment two of the utility model.

[0019] Figure 6 is a schematic view of embodiment three of the utility model.

[0020] Figure 7 is a schematic view of embodiment four of the utility model.

[0021] Figure 8 is a schematic view of embodiment five of the utility model.

[0022] Figure 9 is Figure 8 an A-A sectional view in DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings of the embodiments of the present application. Figures 1-9 It is apparent that the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of the present application.

[0024] Embodiment one

[0025] As shown in Figures 1-4 , a hemodialysis catheter fixing device is provided, comprising:

[0026] The first clamping member 1 comprises an arc-shaped plate 101 made of plastic with elasticity, which clamps the round bedside rail 8 in use and can be adjusted up and down based on the round bedside rail 8, and the arc-shaped plate 101 is outwardly arc-bent on one side (towards the outside) to be a circular-arc hem 101a, so that the arc-shaped plate 101 can be smoothly sleeved on the round bedside rail 8;

[0027] The second clamping member 2 is provided with two catheter locking grooves 201 for locking the catheter 7 and accommodating the catheter 7 therethrough, and the second clamping member 2 is connected to the first clamping member 1, the inner cavity shape of the catheter locking groove 201 is not limited (such as a circular arc shape), the catheter locking groove 201 is through from front to back, so that the catheter 7 can pass through the catheter locking groove 201 along the length direction thereof, and the catheter 7 is in interference fit with the catheter locking groove 201 (as shown in Figure 4 ), so as to firmly fix the catheter 7 in the catheter locking groove 201 and can be removed in subsequent.

[0028] Wherein, the bedside rail 8 is generally a round rod, and the first clamping member 1 can be adjusted up and down based on the round bedside rail 8 after the position is fixed, and since the arc-shaped plate 101 is a circular arc plate structure, the elastic force of the arc-shaped plate 101 in the radial direction can be utilized to clamp the bedside rail 8, so that the position of the first clamping member 1 is fixed, and the position of the second clamping member 2 and the catheter locking groove 201 thereof is also fixed, so that the position of the catheter 7 can be stably locked after the interference fit with the catheter locking groove 201. The catheter locking groove 201 can be provided with two or more than two, and two or more than two catheters 7 can be fixed.

[0029] In order to facilitate the installation of the second clamping piece 2, the first clamping piece 1 further comprises an extension plate 102 extending on the other side (inward) of the arc-shaped plate 101 and integrally formed with the arc-shaped plate 101, which is used as the installation base of the second clamping piece 2.

[0030] The second clamping piece 2 is made of plastic, and the second clamping piece 2 and the catheter locking groove 201 thereof are integrally formed by one-time injection molding. The second clamping piece 2 is rotatably connected to the extension plate 102 of the first clamping piece 1, and the rotation adjustment axis is perpendicular to the plate surface of the extension plate 102.

[0031] As shown in Figure 1 , as a preferred rotation adjustment scheme of the second clamping piece 2, the second clamping piece 2 is provided with a threaded hole. A hexagonal plastic screw 3 is movably inserted through a pre-positioning hole of the extension plate 102 and screwed into the threaded hole of the second clamping piece 2. The second clamping piece 2 can be rotatably adjusted by loosening the hexagonal plastic screw 3 with a hexagonal wrench, and the position of the catheter 7 can be flexibly controlled. The position of the catheter 7 can be locked by tightening the hexagonal plastic screw 3, and the hexagonal plastic screw 3 constitutes the rotation adjustment pivot of the second clamping piece 2, which is easy to operate and convenient for productization.

[0032] As shown in Figure 2 , 3 , by rotating and adjusting the position of the second clamping piece 2 itself, the orientation of the catheter locking groove 201 of the second clamping piece 2 can be adjusted, thereby adjusting the position of the catheter 7 and flexibly adapting to the use situation on site.

[0033] After use, the catheter 7 can be quickly removed, the arc-shaped plate 101 can be slightly opened by hand, and the first clamping piece 1 can be conveniently removed, so that the entire catheter fixing device can be removed, and the catheter fixing device can be repeatedly used.

[0034] Example Two

[0035] As shown in Figure 5 , a hemodialysis catheter fixing device is provided. Compared with the scheme of example one, the difference lies in that the second clamping piece 2 is fixedly connected (which can be adhesively or ultrasonically welded) to the extension plate 102 of the first clamping piece 1, thereby simplifying the structure and facilitating the manufacturing. Moreover, the second clamping piece 2 can be a rubber piece (adhesively fixed on the extension plate 102), which can better protect the relatively soft catheter 7. The rubber piece can be easily purchased on the market, and the second clamping piece 2 is also provided with a catheter locking groove 201, which can further reduce the manufacturing difficulty.

[0036] Example Three

[0037] As shown in Figure 6As shown, based on Embodiment 2, two Velcro pieces 4 are added. The outer surface of the arc plate 101 of the first clamping member 1 is connected to two Velcro pieces 4. The two Velcro pieces 4 are bonded to each other and bind the conduit 7 to the outer surface of the arc plate 101 to initially define the position of the conduit 7. Then, the position of the conduit 7 is locked by the conduit locking groove 201.

[0038] Example 4

[0039] like Figure 7 As shown, based on Embodiment 3, the device further includes catheter clamps 5 and flexible connecting lines 6 (nylon lines or other flexible lines). Two catheter clamps 5 are provided, each clamping one catheter 7. The catheter clamps 5 are connected to the first clamping member 1 via the connecting lines 6. The catheter clamps 5 are used to clamp the catheters 7, and when clamping the catheters 7, the catheter clamps 5 abut against the inlet side (upper side) of the catheter locking groove 201 of the second clamping member 2. It is worth noting that the catheter clamps 5 are existing medical devices, such as those in the patent with authorization announcement number CN204017024U.

[0040] Example 5

[0041] like Figures 8-9 As shown, based on Embodiment 4, the extension plate 102 is removed, and the second clamping member 2 is integrally formed with the first clamping member 1, and the second clamping member 2 is directly connected to the arc plate 101.

[0042] In embodiment five, the second clamping member 2 has:

[0043] The main plastic plate 202 is integrally formed with the curved plate 101.

[0044] Two conduit locking plates 203 are integrally formed with the main plastic plate 202. The conduit locking plates 203 are designed as plastic arc-shaped plate structures (e.g., Figure 9 As shown), the inner cavity of the catheter locking plate 203 is set as a catheter locking groove 201.

[0045] In Embodiment 5, the second clamping member 2 is integrally formed with the first clamping member 1, and the main structure of the catheter fixing device (the first clamping member 1 and the second clamping member 2) can be formed by one-time injection molding.

[0046] In the description of the utility model, it is necessary to explain, the term "center", "upper", "lower", "left", "right", "vertical", "horizontal", "front", "back" and so on indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as a limitation on the utility model; In the utility model, it is necessary to explain that the terms "mounting", "connection" should be understood broadly, for example, fixed connection, can be detachable connection, or integral connection, can be mechanical connection, can be indirectly connected through intermediate connecting parts, the specific meaning of the term in the utility model can be understood according to the specific circumstances.

[0047] It is obvious for those skilled in the art that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the utility model is defined by the appended claims rather than the above description, therefore all changes falling within the meaning and scope of the equivalent elements of the claims should be included in the utility model, any figure reference in the claims should not be regarded as limiting the claims involved.

[0048] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A hemodialysis catheter securement device, comprising: The utility model relates to a kind of bed side railings, including: First clamping piece (1), it includes the arc plate (101) with elasticity, made of plastic, the arc plate (101) is clamped in use Circular bed side railings (8) and can be rotatably adjusted based on Circular bed side railings (8); Second clamping piece (2), it is equipped with at least one for locking conduit (7), and the conduit locking slot (201) of conduit (7) is accommodated through, the second clamping piece (2) is connected first clamping piece (1).

2. A hemodialysis catheter securement device according to claim 1, wherein, The first clamping piece (1) further includes the extension plate (102) based on the edge of arc plate (101) and integrally formed with arc plate (101).

3. A hemodialysis catheter securement device according to claim 2, wherein, The second clamping piece (2) is rotatably connected with the extension plate (102) of first clamping piece (1).

4. A hemodialysis catheter securement device according to claim 2, wherein, The second clamping piece (2) is fixedly connected with the extension plate (102) of first clamping piece (1).

5. The hemodialysis catheter securement device of claim 2, wherein, The other side of the arc plate (101) is provided with a circular arc hem (101a) that is outwardly curved.

6. The hemodialysis catheter securement device of claim 1, wherein, The outer surface of the arc plate (101) of the first clamping piece (1) is connected with two pieces of magic tape (4), and the two pieces of magic tape (4) are oppositely bonded and bind the conduit (7) on the outer surface of the arc plate (101).

7. The hemodialysis catheter securement device of claim 1 or 6, wherein, It also includes conduit clamp (5) and flexible connecting line (6), the conduit clamp (5) is equipped with at least one, the conduit clamp (5) is connected with first clamping piece (1) by connecting line (6), the conduit clamp (5) is used for clamping conduit (7), and the conduit clamp (5) is in contact with the entry side of the conduit locking slot (201) of second clamping piece (2) when clamping conduit (7).

8. The hemodialysis catheter securement device of claim 1, wherein, The second clamping piece (2) has: Main body plastic plate (202), the main body plastic plate (202) is integrally formed with arc plate (101); At least one conduit locking plate (203), the conduit locking plate (203) is integrally formed with main body plastic plate (202), the conduit locking plate (203) is provided as arc plate structure, and its inner cavity is provided as the conduit locking slot (201).

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