Deep venous catheter waterproof protective cover patch for dialysis

Abstract

The waterproof protective cover patch for the deep venous catheter for dialysis comprises a waterproof base and a waterproof cover in threaded connection with the waterproof base, a one-way air exhaust connector is fixed to the top of the waterproof cover, and an automatic reset air exhaust injector can be connected to the one-way air exhaust connector in an inserted mode. According to the protective cover paste, the periphery of the deep vein puncture opening and the periphery of the deep vein catheter connector are covered with the negative pressure cover, damage to the puncture opening caused by tearing of an adhesive tape is avoided, the deep vein catheter does not need to be pressed and fixed to the skin, and bruise to the skin is reduced.

Description

Technical Field

[0001] The utility model relates to the field of medical care appliances, in particular to a waterproof protective cover sticker for a deep vein catheter for dialysis. Background Art

[0002] Deep vein catheterization is to puncture the relevant veins on the body surface, insert the corresponding catheter, and place the catheter into the deeper vein or central vein to achieve the purpose of treatment and monitoring. The treatment that can be performed through the deep vein catheter includes: long-term infusion, large-volume infusion, total intravenous nutrition, vasoactive drugs, etc. The deep vein catheter can be used for monitoring, such as blood volume monitoring, central venous pressure monitoring, cardiac function testing, blood tests, etc. The common puncture site for deep vein catheterization is subclavian vein puncture. The connector of the deep vein catheter is drawn out from the skin below the clavicle and the deep vein catheter connector is left in place.

[0003] In order to prevent the puncture site and connector of the deep vein catheter from being contaminated, patients with deep vein catheterization are often unable to take a shower for several months, causing great trouble to them. Although covering the puncture site and connector of the deep vein catheter with waterproof tape can prevent water from entering, peeling off the waterproof tape will tear the skin at the puncture site and cause damage. At the same time, the connector of the deep vein catheterization is only placed on the skin, which will also cause local skin compression. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a waterproof protective cover patch for deep vein catheters for dialysis. The protective cover patch uses a negative pressure cover to cover the periphery of the deep vein puncture port and the deep vein catheter connector, so that the puncture port will not be damaged due to tearing of the tape, and there is no need to press and fix the deep vein catheter on the skin, thereby reducing skin compression injuries; the protective cover patch has good air tightness, which can prevent the problem of water entering the protective cover patch due to air leakage. At the same time, the protective cover patch uses a double fixing method of negative pressure and adhesion, which can be more tightly adsorbed and fixed on the skin around the deep vein catheter puncture port to prevent it from falling off during showering; the negative pressure cover of the protective cover patch can be easily sucked into a negative pressure state for negative pressure fixation.

[0005] In order to achieve the above technical effects, the utility model is implemented through the following technical solutions:

[0006] The invention discloses a waterproof protective cover sticker for a deep vein catheter for dialysis, comprising a waterproof base and a waterproof cover threadedly connected thereto, wherein a one-way air extraction joint is fixed on the top of the waterproof cover, and an automatic reset air extraction syringe can be plugged into the one-way air extraction joint.

[0007] Furthermore, an annular groove is opened at the bottom of the waterproof base, the annular groove is filled with hot-melt adhesive, the center of the waterproof base is hollow, a threaded socket is fixed on the top of the waterproof base, and the waterproof cover is screwed to the threaded socket.

[0008] Furthermore, the waterproof cover is composed of a threaded interface, a negative pressure cover and a one-way air exhaust joint. The negative pressure cover is hot-melt connected to the side wall of the threaded interface. The negative pressure cover is an elastic cover body joint. The threaded interface is threadedly connected to the threaded socket of the waterproof base. The one-way air exhaust joint is fixed to the top of the negative pressure cover.

[0009] Furthermore, the one-way air extraction joint is T-shaped, including a one-way air extraction head and a one-way exhaust head, in which a one-way valve core is fixed, and the one-way valve core includes a sealing ball, a tightening spring and an annular support fixed on the inner wall, one end of the tightening spring is sleeved on the annular support and the other end is abutted against the sealing ball.

[0010] Furthermore, the automatic reset air extraction syringe includes a shell, a push-pull rod and a piston. The push-pull rod is arranged in the shell, the piston is fixed to the front end of the push-pull rod, and a tail wing is fixed to the rear end of the push-pull rod. A limit baffle is fixed on the inner wall of the shell, the push-pull rod passes through the limit baffle, and a self-resetting spring is fixed between the limit baffle and the tail wing.

[0011] The beneficial effects of the utility model are as follows: the protective cover sticker utilizes a negative pressure cover to cover the periphery of the deep vein puncture port and the deep vein catheter connector, so that the puncture port will not be damaged due to tearing of the tape, and there is no need to press and fix the deep vein catheter on the skin, thereby reducing skin compression injuries; the protective cover sticker has good air tightness, which can prevent the problem of water entering the protective cover sticker due to air leakage, and at the same time, the protective cover sticker utilizes a double fixing method of negative pressure and adhesion, which can be more tightly adsorbed and fixed on the skin around the deep vein catheter puncture port, thereby preventing it from falling off during showering; the negative pressure cover of the protective cover sticker can be easily sucked into a negative pressure state for negative pressure fixation. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0013] Figure 1 It is a schematic diagram of the appearance structure of a waterproof protective cover for a deep vein catheter for dialysis;

[0014] Figure 2 It is a schematic diagram of the cross-sectional structure of a waterproof protective cover sticker for a deep vein catheter for dialysis;

[0015] Figure 3 It is a schematic diagram of the state of the automatic reset air extraction syringe when the self-reset spring is compressed.

[0016] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0017] 1-waterproof base, 2-waterproof cover, 3-automatic reset air extraction syringe, 11-threaded holder, 12-hot melt adhesive, 13-sealing gasket, 21-threaded interface, 22-negative pressure cover, 23-one-way air extraction joint, 231-one-way air extraction head, 232-one-way exhaust head, 233-sealing ball, 234-tightening spring, 235-annular support, 31-housing, 32-push-pull rod, 33-tail wing, 34-limit baffle, 35-self-reset spring. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] like Figure 1 As shown, the waterproof protective cover patch for deep venous catheter for dialysis includes a waterproof base 1 and a waterproof cover 2 threadedly connected thereto, a one-way air extraction connector 23 is fixed on the top of the waterproof cover 2, and an automatic reset air extraction syringe 3 can be plugged into the one-way air extraction connector 23.

[0020] like Figure 2 As shown, the bottom of the waterproof base 1 is provided with an annular groove 12, which is filled with hot-melt adhesive, the center of the waterproof base is hollowed out, a threaded holder is fixed on the top of the waterproof base, and the waterproof cover is screwed to the threaded holder. The waterproof cover is composed of a threaded interface 21, a negative pressure cover 22 and a one-way air extraction joint 23, the negative pressure cover 22 is hot-melt connected to the side wall of the threaded interface, the negative pressure cover 22 is an elastic cover body joint, the threaded interface is threadedly connected to the threaded holder of the waterproof base, a sealing gasket 13 is provided between the threaded interface and the threaded holder, and the one-way air extraction joint 23 is fixed to the top of the negative pressure cover 22.

[0021] like Figure 3As shown, the one-way air extraction joint 23 is T-shaped, including a one-way air extraction head 231 and a one-way exhaust head 232, wherein a one-way valve core is fixed in the one-way air extraction head 231 and the one-way exhaust head 232, wherein the one-way valve core includes a blocking ball 233, a tightening spring 234 and an annular support 235 fixed on the inner wall, wherein one end of the tightening spring 234 is sleeved on the annular support and the other end is abutted against the blocking ball 233. The automatic reset air extraction syringe 3 includes a housing 31, a push-pull rod 32 and a piston, wherein the push-pull rod 32 is arranged in the housing 31, the piston is fixed to the front end of the push-pull rod, and a tail fin 33 is fixed to the rear end of the push-pull rod 32, a limit baffle 34 is fixed on the inner wall of the housing 31, the push-pull rod 32 passes through the limit baffle 34, and a self-reset spring 35 is fixed between the limit baffle 34 and the tail fin 33.

[0022] The specific application of the device is as follows: the waterproof base 1 is pasted on the skin around the deep vein catheter puncture site, and when pasting, it is observed whether the deep vein catheter puncture site and the deep vein catheter connector pass through the waterproof base, and then the waterproof cover is threadedly connected to the waterproof base 1. At this time, the deep vein catheter connector is covered in the waterproof cover 2, and then the nipple of the automatic reset air extraction syringe 3 is plugged into the one-way air extraction connector 23 on the negative pressure cover 22, and then the push-pull rod 32 is pressed downward. At this time, the air in the automatic reset air extraction syringe 3 will simultaneously push the blocking balls in the one-way air extraction head 31 and the one-way exhaust head 32. The one-way exhaust head The sealing ball in 32 is opened, and the sealing ball in the one-way exhaust head 31 is closed. At this time, the air is discharged to the outside, and then the tail wing piece 33 is loosened, the self-resetting spring 35 will push the tail wing piece to move upward, the sealing ball in the one-way exhaust head 32 is closed, and the sealing ball in the one-way exhaust head 31 is opened, the gas in the negative pressure cover 22 is sucked out, and the negative pressure cover 22 is in a negative pressure state. The skin at the deep vein puncture port is slightly raised, the negative pressure cover 22 will be adsorbed on the skin, and the waterproof base 1 is attached to the outer skin of the deep vein catheter puncture port, so that the waterproof protective cover of the deep vein catheter for dialysis is fixed to the skin.

[0023] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

Claims

1. A waterproof protective cover for a deep vein catheter for dialysis, characterized in that: The utility model comprises a waterproof base and a waterproof cover which is threadedly connected thereto. A one-way air extraction joint is fixed on the top of the waterproof cover, and an automatic reset air extraction syringe can be plugged into the one-way air extraction joint.

2. The waterproof protective cover patch for deep vein catheter for dialysis according to claim 1, characterized in that: The bottom of the waterproof base is provided with an annular groove filled with hot-melt adhesive. The center of the waterproof base is hollowed out. A threaded socket is fixed on the top of the waterproof base, and the waterproof cover is screwed to the threaded socket.

3. The waterproof protective cover patch for deep vein catheter for dialysis according to claim 1 or 2, characterized in that: The waterproof cover consists of a threaded interface, a negative pressure cover and a one-way air extraction joint. The negative pressure cover is hot-melt connected to the side wall of the threaded interface. The negative pressure cover is an elastic cover body joint. The threaded interface is threadedly connected to the threaded socket of the waterproof base. The one-way air extraction joint is fixed to the top of the negative pressure cover.

4. The waterproof protective cover patch for deep vein catheter for dialysis according to claim 3, characterized in that: The one-way air extraction joint is T-shaped, including a one-way air extraction head and a one-way exhaust head. A one-way valve core is fixed in the one-way air extraction head and the one-way exhaust head. The one-way valve core includes a sealing ball, a tightening spring and an annular support fixed on the inner wall. One end of the tightening spring is sleeved on the annular support and the other end is against the sealing ball.

5. The waterproof protective cover patch for deep vein catheter for dialysis according to claim 1 or 4, characterized in that: The automatic reset air extraction syringe includes a shell, a push-pull rod and a piston. The push-pull rod is arranged in the shell, the piston is fixed to the front end of the push-pull rod, and a tail wing is fixed to the rear end of the push-pull rod. A limit baffle is fixed on the inner wall of the shell, the push-pull rod passes through the limit baffle, and a self-reset spring is fixed between the limit baffle and the tail wing.

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