CN108273175B - Fixing device of blood transfusion intervention pipe - Google Patents

Abstract

The invention discloses a fixing device for an interventional catheter for blood transfusion, comprising a protective cover. The middle of the protective cover is a long strip structure, and the two ends of the protective cover are circular structures. The circular structures at both ends of the protective cover are provided with annular structures inside. Airway 2, two micro-holes are arranged at the bottom of the circular structure at both ends of the protective cover. Two sides of the micro-hole are provided with through holes, and damping plugs are arranged inside the through-holes of the two side walls of the micro-hole. A fixing belt is fixed at the middle position, the fixing device of the blood transfusion intervention catheter is fixed by means of vacuum negative pressure, and a protective cover is installed outside the catheter to protect the intervention part of the catheter.

Description

A fixing device for blood transfusion interventional catheter

technical field

The invention relates to the technical field of medical devices, in particular to a fixing device for a blood transfusion interventional catheter.

Background technique

At present, interventional therapy is an emerging medical field, and interventional catheter is a device mainly used for vascular interventional diagnosis and treatment. In clinical interventional therapy, the catheter needs to be positioned. The current practice is usually to stick it on the patient's skin with tape or directly sew it into the patient's skin. The former may cause the patient's skin to be allergic and bring a series of problems. ; the latter brings unnecessary pain to the patient.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention is to overcome the existing defects and provide a fixing device for a blood transfusion intervention catheter. Solve the problems in the background art.

In order to achieve the above purpose, the present invention provides the following technical solutions: a fixing device for an interventional catheter for blood transfusion, comprising a protective cover, the middle of the protective cover is an elongated structure, and the two ends of the protective cover are circular structures, and the protective cover Two annular air passages are arranged inside the circular structures at both ends, and two micro-holes are arranged at the bottom of the circular structures at both ends of the protective cover. The second one-way valve is installed, the two sides of the micro hole are provided with through holes, the through holes of the two side walls of the micro hole are provided with damping plugs, the outer ends of the damping plugs are fixedly connected with the protection ring, and the protection ring is connected with the protection cover. With the installation, a fixing belt is fixed in the middle of the lower end of the protective cover, a fixing table is arranged on the upper end of the protective cover, the surface of the fixing table is provided with a pipe hole, and the side of the fixing table is provided with a suction port, and the suction port It communicates with the annular airway II.

As a preferred technical solution of the present invention, a first annular air passage is arranged inside the fixing table, a micro hole is arranged on the inner wall of the passage hole, and the annular air passage is connected with the micro hole one.

As a preferred technical solution of the present invention, a one-way valve is installed at the suction port on the side of the fixing table, and the upper and lower ends of the pipe-passing holes on the surface of the fixing table are provided with rounded chamfers.

As a preferred technical solution of the present invention, an end of the upper surface of the protective cover away from the fixing table is provided with ventilation holes, and the ventilation holes are evenly arranged around the axis of the circular structure at the end of the protective cover.

As a preferred technical solution of the present invention, the protective cover is a transparent plastic cover, and adjustment grooves are evenly arranged in the middle of the protective cover.

Compared with the prior art, the beneficial effects of the present invention are: the fixation device of the blood transfusion interventional catheter adopts the method of adding a fixing belt at the lower end of the protective cover, so as to fix the interventional catheter on the skin surface, prevent the catheter from moving, and avoid the use of adhesive tape to fix it. At the same time, a protective cover is set at the catheter intervention position to prevent external objects from touching the catheter. At the same time, the micro-hole 1 inside the fixing table fixes the catheter and the protective cover under the action of negative pressure, and the micro-hole 2 is under the action of negative pressure. The protective cover is fixed with the skin to prevent the relative movement of the skin, the protective cover and the catheter, and at the same time, an adjustment groove is arranged at the lower end of the protective cover, so that the protective cover has certain adjustment ability and good applicability.

Description of drawings

Fig. 1 is a schematic perspective view of the structure of the present invention;

Fig. 2 is the bottom schematic diagram of the structure of the present invention;

3 is a cross-sectional view of the structure of the present invention;

Fig. 4 is the internal schematic diagram of the structure fixing platform of the present invention;

FIG. 5 is a schematic diagram of the interior of the second micro-hole in the structure of the present invention.

In the picture: 1 protective cover, 2 fixing table, 3 pipe holes, 4 ventilation holes, 5 protection rings, 6 air inlets, 7 fixing belts, 8 adjusting grooves, 9 annular airways, 10 micro holes, 11 single One-way valve one, 12 annular air passage two, 13 micro-hole two, 14 one-way valve two, 15 damping plug.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

1-5, the present invention provides a technical solution: a fixing device for an interventional catheter for blood transfusion, comprising a protective cover 1, the middle of the protective cover 1 is an elongated structure, and the two ends of the protective cover 1 are circular structures, Two annular air passages 12 are arranged inside the circular structures at both ends of the protective cover 1 , micro holes 2 13 are arranged at the bottom of the circular structures at both ends of the protective cover 1 , the annular air passages 12 are communicated with the second micro holes 13 , and the second annular pipe 12 is connected to the micro holes 2 13 . The second one-way valve 14 is installed at the connecting part of the second hole 13, the side of the micro hole 2 13 is provided with a through hole, the inside of the through hole of the side wall of the micro hole 2 12 is provided with a damping plug 15, and the outer end of the damping plug 15 is fixedly connected with the protection ring 5, The protection ring 5 is installed in cooperation with the protection cover 1, the middle position of the lower end of the protection cover 1 is fixed with a fixing belt 7, the upper end of the protection cover 1 is provided with a fixing table 2, the surface of the fixing table 2 is provided with a pipe hole 3, and the side of the fixing table 2 is provided with an air inlet 6. The suction port 6 is communicated with the annular air passage 2 12, an annular air passage 9 is arranged inside the fixing table 2, a micro-hole 10 is arranged on the inner wall of the passage hole 3, and the annular air passage 9 is communicated with the micro-hole 1 10. Under the action of pressure, the catheter is fixed with the fixed table 2, a one-way valve 11 is installed at the suction port 6 on the side of the fixed table 2, and the upper and lower ends of the pipe hole 3 on the surface of the fixed table 2 are provided with rounded chamfers , to prevent the liquid flow from being blocked due to the bending of the catheter, the upper surface of the protective cover 1 is provided with a ventilation hole 4 at one end away from the fixing table 2, and the ventilation holes 4 are evenly arranged around the axis of the circular structure at the end of the protective cover 1 to prevent the inside of the protective cover 1. The skin is hypoxic for a long time, the protective cover 1 is a transparent plastic cover, which is convenient to observe the internal situation, and the adjustment groove 8 is evenly arranged in the middle position of the protective cover 1 to increase the applicability of the protective cover 1 .

In use: after the catheter is inserted into the skin, the catheter is fixed by the fixing belt 7, and then the syringe is used to communicate with the suction port 6. Under the action of the syringe, the annular airway one 9 and the annular airway two 12 are connected Air is exhausted. At this time, the internal pressure of micro-hole 10 and micro-hole 2 13 is lower than that of the outside. Fix the catheter and the skin to the protective cover 1 respectively to prevent the three from moving each other. After the treatment is completed, pull the protective ring 5 to drive the damping plug. 15 is pulled out, the air pressure inside the micro hole 2 13 returns to normal, the protective cover 1 is detached from the skin, after taking out the catheter, pull out the one-way valve 11, the internal pressure of the micro hole 1 10 returns to normal, and the catheter detaches from the fixing table 2.

The present invention adopts the method of adding a fixing tape 7 at the lower end of the protective cover 1 to fix the interventional catheter on the skin surface to prevent the catheter from moving and avoid allergies caused by the use of adhesive tapes. Touch the catheter, and at the same time, the micro-hole 10 inside the fixing table 2 fixes the catheter and the protective cover 1 under the action of negative pressure, and the micro-hole 2 13 fixes the protective cover 1 and the skin under the action of negative pressure to prevent the skin and protect the skin. The cover 1 and the conduit move relative to each other, and at the same time, an adjustment groove 8 is provided at the lower end of the protective cover 1, so that the protective cover 1 has a certain adjustment ability and good applicability.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, and substitutions can be made in these embodiments without departing from the principle and spirit of the invention and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (3)

1. A fixing device for a blood transfusion interventional catheter, comprising a protective cover (1), characterized in that: the middle part of the protective cover (1) is an elongated structure, and both ends of the protective cover (1) are circular structures, so Two annular air passages (12) are arranged inside the circular structure at both ends of the protective cover (1), and two micro holes (13) are arranged at the bottom of the circular structure at both ends of the protective cover (1). The annular air passage two (12) ) is communicated with the second micro-hole (13), and a two-way valve (14) is installed where the annular pipe two (12) communicates with the second micro-hole (13), and the side of the second micro-hole (13) is provided with a through hole, A damping plug (15) is arranged inside the through hole of the side wall of the second micro-hole (12), and the outer end of the damping plug (15) is fixedly connected with the protection ring (5), and the protection ring (5) is connected with the protection cover ( 1) Cooperative installation, a fixing belt (7) is fixedly arranged at the middle position of the lower end of the protective cover (1), a fixing table (2) is arranged on the upper end of the protective cover (1), and the surface of the fixing table (2) is provided with a pipe hole (3), a suction port (6) is arranged on the side of the fixing table (2), and the suction port (6) is communicated with the second annular air passage (12); the inside of the fixing table (2) is provided with annular air One (9), a micro-hole (10) is arranged on the inner wall of the pipe-passing hole (3), and the one (9) annular air passage is communicated with the micro-hole one (10); the side of the fixing table (2) A one-way valve (11) is installed at the suction port (6) of the fixed table (2), and the upper and lower ends of the pipe-passing hole (3) on the surface of the fixing table (2) are provided with rounded chamfers. 2. The fixing device of a blood transfusion interventional catheter according to claim 1, characterized in that: one end of the upper surface of the protective cover (1) away from the fixing table (2) is provided with a ventilation hole (4), and the ventilation hole ( 4) Evenly arranged around the axis of the circular structure at the end of the protective cover (1). 3 . The fixing device for an interventional catheter for blood transfusion according to claim 1 , wherein the protective cover ( 1 ) is a transparent plastic cover, and an adjustment groove ( 8 ) is evenly arranged in the middle of the protective cover ( 1 ). 4 .

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