Fixing device for hemodialysis central venous indwelling catheter

Abstract

The utility model discloses a fixing device for a hemodialysis central venous indwelling catheter, which comprises a fixing sheet, and one side of the fixing sheet is arranged to be a sticking layer in order to conveniently fix the fixing sheet on the skin of a patient; a bottom plate is fixed to the fixing piece, a pair of limiting blocks and a pair of limiting columns are fixed to the bottom plate, the limiting blocks are used for clamping the connector, the limiting columns penetrate through the hanging lugs to be used for fixing, the connector is sleeved with a clamping block, two limiting lugs are fixed to the clamping block, and the limiting columns are also sleeved with the limiting lugs to be used for fixing; therefore, the venous indwelling catheter can be fixed very conveniently, medical adhesive tape is omitted, and damage to the skin of a patient is avoided while the venous indwelling catheter is very convenient to use.

Description

Technical Field

[0001] The utility model relates to the field of hemodialysis equipment, in particular to a fixing device for a central venous catheterization for hemodialysis. Background Art

[0002] Peripherally inserted central catheter (PICC) is a commonly used medical device during hemodialysis. A PICC usually punctures a vein in the peripheral arm with a catheter and finally connects to a large vein near the heart, enhancing the drug effect through the relatively high-speed blood flow in the large vein.

[0003] The existing PICC is usually fixed on the patient's skin by sticking the tube head, catheter, gauze, etc. with medical tape. Although this method is relatively simple during fixation, the gauze and medical tape need to be replaced every 3 - 5 days, which easily causes local skin damage and the patient's experience will be very poor. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a fixing device for a central venous catheterization for hemodialysis to overcome the above-mentioned defects in the prior art.

[0005] According to the fixing device for a central venous catheterization for hemodialysis of the utility model, it is used to fix the PICC. The PICC consists of a connector and two catheters, and a pair of hanging ears are fixed on the connector.

[0006] The fixing device for a central venous catheterization for hemodialysis includes a fixing piece. To facilitate the fixing of the fixing piece on the patient's skin, one side of the fixing piece is set as an adhesive layer.

[0007] A bottom plate is fixed on the fixing piece. A pair of limiting blocks and a pair of limiting columns are fixed on the bottom plate. The limiting blocks are used to clamp the connector, and the limiting columns pass through the hanging ears for fixation. A clamping block is sleeved on the connector, and two limiting ears are fixed on the clamping block, and the limiting ears are also sleeved on the limiting columns for fixation.

[0008] Preferably, the shape of the inner side of the limiting block fits the connector to optimize the clamping effect, and a groove is opened at the bottom of the clamping block to fit the connector to optimize the clamping effect.

[0009] Preferably, friction pieces are fixed on the bottom plate and the inner side of the clamping block to increase the friction force with the connector.

[0010] Preferably, there is a large friction force between the limiting column and the hanging ear and the limiting ear to prevent accidental detachment; a connecting strip is fixed between the clamping block and the limiting block, and the connecting strip is made of a flexible material.

[0011] Preferably, a release paper is adhered to the side of the fixing piece paste layer, and a tearing ear is fixed on one side of the release paper;

[0012] Preferably, ventilation grooves are formed through the fixing piece to increase air permeability.

[0013] Preferably, the two conduits are fixed by a pair of first snap fasteners fixedly arranged on the fixing piece. One side of the first snap fastener is open, and the conduit is fixed by clamping the conduit through the first snap fastener.

[0014] Preferably, a pair of second snap fasteners are symmetrically fixed on the fixing piece. One side of the second snap fastener is also open to clamp the corresponding conduit.

[0015] Preferably, in order to prevent the conduit from being pulled and causing slippage, the second snap fastener and the first snap fastener are specifically arranged in different fixing directions.

[0016] Preferably, a pair of reinforcing pieces are fixedly installed on the inner side of the fixing piece, and third snap fasteners are fixed on each of the reinforcing pieces. One side of the third snap fastener is also open to clamp the corresponding conduit.

[0017] The beneficial effects of the present utility model are as follows:

[0018] 1. The fixation of the connector of the venous catheterization specifically includes a pair of limit blocks and a pair of limit columns fixed to the fixing piece. The limit blocks are used to clamp the connector, and the limit columns pass through the hanging ears on the connector for fixation. A clamping block is sleeved on the connector, and two limit ears are fixed on the clamping block for sleeving on the limit columns for fixation, thereby realizing very convenient fixation of the venous catheterization, eliminating the use of medical adhesive tape, being very convenient, and avoiding skin damage to patients at the same time.

[0019] 2. The two conduits of the venous catheterization are fixed by a pair of first snap fasteners, a pair of second snap fasteners and a pair of third snap fasteners fixed on the fixing piece, greatly improving the fixing effect and preventing the conduits from being pulled out and slipping.

[0020] 3. A friction piece is fixed inside the clamping block to increase the friction force with the connector, which can better ensure that the connector does not shake during use.

[0021] 4. A connecting strip is fixed between the clamping block and the limit block, which can effectively prevent the loss of the clamping block. Brief Description of the Drawings

[0022] Figure 1 is the first external view schematic diagram of the present utility model;

[0023] Figure 2 is the second external view schematic diagram of the present utility model;

[0024] Figure 3 isFigure 2 Enlarged schematic diagram.

[0025] In the figure: 10, fixing piece; 11, first buckle; 12, catheter; 13, ventilation groove; 14, reinforcing piece; 15, third buckle; 16, second buckle; 17, joint; 18, clamping block; 19, release paper; 20, tear tab; 21, limiting block; 22, limiting post; 23, bottom plate; 24, hanging ear; 25, limiting ear; 26, connecting strip; 27, central venous catheter for hemodialysis. Specific implementation mode

[0026] In order to make the purpose and advantages of the present utility model clearer, the following specifically describes the present utility model in conjunction with embodiments. It should be understood that the following text is only used to describe the fixing device for the central venous catheter for hemodialysis of the present utility model or several specific implementation modes, and does not strictly limit the specific protection scope claimed by the present utility model. As used herein, the terms up and down and left and right do not limit their strict geometric definitions, but include tolerances for machining or human errors that are reasonable and inconsistent. The following details the specific features of the fixing device for the central venous catheter for hemodialysis:

[0027] Refer to Figures 1 - 3 , the fixing device for the central venous catheter for hemodialysis according to the embodiment of the present utility model is used to fix the venous catheter 27. The venous catheter 27 is composed of a joint 17 and two catheters 12, and a pair of hanging ears 24 are fixed on the joint 17.

[0028] To ensure the stability of the venous catheter 27 during use, both the joint 17 and the catheter 12 are fixed. The fixing device for the central venous catheter for hemodialysis includes a fixing piece 10. To facilitate the fixing of the fixing piece 10 on the patient's skin, one side of the fixing piece 10 is set as a paste layer;

[0029] Furthermore, to prevent the paste layer on one side of the fixing piece 10 from failing, a release paper 19 is attached to the paste layer side of the fixing piece 10;

[0030] Even further, to facilitate tearing the release paper 19 from the fixing piece 10, a tear tab 20 is fixed on one side of the release paper 19;

[0031] In addition, the fixing piece 10 will affect the air permeability of the patient's skin. Therefore, the contact area between the fixing piece 10 and the skin is minimized by providing ventilation grooves 13 penetrating through the fixing piece 10.

[0032] The two catheters 12 are fixed by a pair of first buckles 11 fixedly arranged on the fixing piece 10. One side of the first buckle 11 is open, and the catheter 12 is fixed by clamping the catheter 12 with the first buckle 11;

[0033] To optimize the fixing effect, a pair of second buckles 16 are symmetrically fixed on the fixing piece 10, and one side of the second buckle 16 is open to clamp the corresponding catheter 12.

[0034] Furthermore, to prevent the catheter 12 from slipping due to pulling, the second buckle 16 and the first buckle 11 are specifically set in different fixing directions. Among them, the best fixing direction is that the direction of the catheter 12 in the first buckle 11 is perpendicular to the direction of the catheter 12 in the second buckle 16.

[0035] Even further, to strengthen the fixing effect on the catheter 12, a pair of reinforcing pieces 14 are fixedly installed on the inner side of the fixing piece 10, and third buckles 15 are fixed on each of the reinforcing pieces 14. One side of the third buckle 15 is also open to clamp the corresponding catheter 12.

[0036] Regarding the fixing of the joint 17, considering the form of splicing for convenient installation and removal, it specifically includes a bottom plate 23 fixed to the fixing piece 10, a pair of limit blocks 21 and a pair of limit posts 22 fixed on the bottom plate 23. The limit block 21 clamps the joint 17, and the limit post 22 passes through the hanging ear 24 for fixing. A clamping block 18 is sleeved on the joint 17, and two limit ears 25 are fixed on the clamping block 18. The limit ears 25 are also sleeved on the limit post 22 for fixing.

[0037] Furthermore, the shape of the inner side of the limit block 21 fits the joint 17 to optimize the clamping effect, and the bottom of the clamping block 18 is grooved to fit the joint 17 to optimize the clamping effect.

[0038] Furthermore, friction sheets are fixed on the bottom plate 23 and the inner side of the clamping block 18 to increase the friction with the joint 17, which can better ensure that the joint 17 does not shake during use.

[0039] Furthermore, there is a large friction force between the limit post 22 and the hanging ear 24 and the limit ear 25 to prevent accidental detachment.

[0040] Furthermore, a connecting strip 26 is fixed between the clamping block 18 and the limit block 21. The connecting strip 26 is made of a flexible material, and the connecting strip 26 can effectively prevent the loss of the clamping block 18.

[0041] Furthermore, each buckle is made of an elastic material to facilitate the installation and removal of the catheter 12.

[0042] Those skilled in the art can clearly understand that various modifications to the above embodiments can be made without departing from the general spirit and concept of the present utility model. All of them fall within the protection scope of the present utility model. The protection scope of the present utility model shall be subject to the appended claims of the present utility model.

Claims

1. A fixing device for a central venous catheter in hemodialysis, which is used to fix the venous catheter (27). The venous catheter (27) is composed of a connector (17) and two catheters (12). A pair of hanging ears (24) are fixed on the connector (17). The fixing device for the central venous catheter in hemodialysis includes a fixing piece (10). To facilitate the fixing of the fixing piece (10) on the patient's skin, one side of the fixing piece (10) is set as an adhesive layer. It is characterized in that: A fixed base plate (23) is fixed on the fixing piece (10). A pair of limiting blocks (21) and a pair of limiting columns (22) are fixed on the base plate (23). The limiting blocks (21) are used to clamp the joint (17). The limiting columns (22) pass through the hanging ears (24) for fixation. A clamping block (18) is sleeved on the joint (17). Two limiting ears (25) are fixed on the clamping block (18). The limiting ears (25) are also sleeved on the limiting columns (22) for fixation.

2. The fixing device for a central venous catheter for hemodialysis according to claim 1, characterized in that: The shape of the inner side of the limiting block (21) fits the joint (17) to optimize the clamping effect. A groove is formed at the bottom of the clamping block (18) to fit the joint (17) to optimize the clamping effect.

3. The fixing device for a central venous catheter for hemodialysis according to claim 1, characterized in that: Friction sheets are fixed on the base plate (23) and the inner side of the clamping block (18) to increase the frictional force with the joint (17).

4. The fixing device for a central venous catheter for hemodialysis according to claim 1, characterized in that: A connecting strip (26) is fixed between the clamping block (18) and the limiting block (21). The connecting strip (26) is made of a flexible material.

5. The fixing device for a central venous catheter for hemodialysis according to claim 1, characterized in that: A release paper (19) is attached to the side of the adhesive layer of the fixing piece (10). A tearing ear (20) is fixed on one side of the release paper (19).

6. The fixing device for a central venous catheter for hemodialysis according to claim 1, wherein: Ventilation grooves (13) are formed through the fixing piece (10) to increase air permeability.

7. The fixing device for a central venous catheter for hemodialysis according to claim 1, characterized in that: The two conduits (12) are fixed by a pair of first snap fasteners (11) fixedly arranged on the fixing piece (10). One side of the first snap fastener (11) is open. The conduit (12) is clamped by the first snap fastener (11) for fixation.

8. The fixing device for a central venous catheter for hemodialysis according to claim 7, wherein: A pair of second snap fasteners (16) are symmetrically fixed on the fixing piece (10). One side of the second snap fastener (16) is also open to clamp the corresponding conduit (12).

9. The fixing device for a central venous catheter for hemodialysis according to claim 8, characterized in that: In order to prevent the conduit (12) from slipping due to pulling, the second snap fastener (16) and the first snap fastener (11) are set in different fixing directions.

10. The fixing device for the central venous catheterization of hemodialysis according to claim 1, characterized in that: A pair of reinforcing pieces (14) are fixedly installed on the inner side of the fixing piece (10). Third snap fasteners (15) are fixed on each of the reinforcing pieces (14). One side of the third snap fastener (15) is also open to clamp the corresponding conduit (12).

Images