CN209270504U - A kind of safety-type infusion apparatus - Google Patents

Abstract

The utility model discloses a safe transfusion device, which comprises a transfusion tube main body, a medicine bottle insertion needle is arranged on the top of the transfusion tube main body, an air inlet pipe is arranged on the needle seat of the medicine bottle insertion needle, and an air inlet pipe is arranged on the bottom end of the transfusion tube main body. There is an infusion needle seat, an infusion scalp needle is arranged on the infusion needle seat, and an infusion connector is arranged between the infusion needle seat and the infusion scalp needle. The inside of the groove, and the diamond-shaped joint is in close contact with the diamond-shaped card groove. The main body of the infusion tube is provided with a liquid medicine dripping bucket and a liquid medicine flow rate regulator. A limit float tube is vertically arranged in the center of the liquid medicine dripping funnel, the lower end of the limit float tube is open, and a number of liquid medicine through holes are arranged on the upper surface and the side wall of the limit float tube, and the limit float The ball tube is equipped with a floating plug ball, which has a stable structure, easy operation and high safety performance.

Description

A safe infusion set

technical field

The utility model relates to the technical field of medical equipment, in particular to a safe infusion set.

Background technique

The infusion set is a common medical device. After aseptic treatment, a channel between the vein and the liquid medicine is established for intravenous infusion. It is generally composed of a vein needle or injection needle, a needle shield, an infusion hose, a liquid medicine filter, Flow rate regulator, drip pot, cork puncturer, air filter and other eight parts are connected. Some infusion sets also have injection parts, dosing ports, etc. In clinical work, with the wide application of intravenous therapy, infusion sets play an increasingly important role.

The existing infusion set has the following problems in the intravenous infusion process:

(1) In the clinical infusion process, it is often necessary to inject drugs to achieve the purpose of treatment. During the infusion process, the more commonly used method for intravenous injection of drugs is to separate the infusion set from the scalp needle, and connect the nipple of the syringe to the scalp needle. It can push the medicine liquid, so that the medicine liquid can enter the blood vessels directly, after pushing the medicine liquid, connect the scalp needle to the infusion set and infuse at the original drip speed. When facing patients who need to repeatedly push the medicine, it takes more Separate the connector of the infusion set for the second time, which will easily lead to the loosening of the connector, or in the process of putting on and taking off the clothes of the patient, the connector of the infusion set will be loosened due to pulling the infusion set, and leakage will occur;

(2) During the infusion process, if there is no special escort to take care of the patient and the patient is in a coma, or if the attendant or the patient is not paying attention, the medicine in the medicine bottle cannot be instilled in time after the liquid in the medicine bottle is dripped. Replacement may cause a large amount of air to enter the human blood circulation system through the infusion set, thereby inducing air embolism, causing discomfort to the patient, and even life-threatening. At the same time, it will bring tension and fear to the patient. Bring some negative influences to the patient, produce unfavorable factor to the patient's cure.

Contents of the invention

In order to overcome the shortcomings of the existing technical solutions, the utility model provides a safe infusion set, which has a stable structure, easy operation, high safety performance, and can effectively solve the problems raised by the background technology.

The technical scheme that the utility model solves its technical problem adopts is:

A safe type infusion set, comprising a main body of an infusion tube, a medicine bottle needle is arranged on the top of the main body of the infusion tube, an air inlet pipe is arranged on the needle seat of the medicine bottle needle, and an air inlet pipe is arranged on the bottom end of the main body of the infusion tube. An infusion needle holder, an infusion scalp needle is arranged on the infusion needle holder, an infusion connector is arranged between the infusion needle holder and the infusion scalp needle, and the infusion connector includes a rhombus connector and a rhombus card slot. The diamond-shaped connector is arranged at the end of the infusion needle holder close to the infusion scalp needle, the diamond-shaped card slot is arranged at the end of the infusion scalp needle close to the infusion needle holder, the diamond-shaped connector is arranged inside the diamond-shaped card groove, and the diamond-shaped connector and the diamond-shaped card The grooves are in close contact, and the main body of the infusion tube is provided with a liquid medicine drop bucket and a liquid medicine flow rate regulator. The centers of the upper and lower ends of the medicine liquid drop bucket are respectively provided with an upper connecting pipe and a lower connecting pipe, and the upper end of the upper connecting pipe The lower end of the lower connecting pipe and the lower connecting pipe are connected with the main body of the infusion pipe, and a three-way medicine feeding dropper is arranged in the upper connecting pipe, and a cylindrical limit float tube is vertically arranged in the center of the medicine drop bucket, and the limit float The lower end of the ball tube is open, and a number of liquid medicine through holes are arranged on the upper surface and the side wall of the position-limiting float tube, and a float ball is arranged inside the position-limiting float tube.

Further, a circular medical liquid filter is arranged below the medical liquid flow rate regulator, and the inside of the medical liquid filter is provided with a double-layer polyethersulfone filter membrane, and the main body of the infusion tube passes through the double-layer The top of the polyethersulfone filter membrane and extends to the inside of the double-layer polyethersulfone filter membrane.

Further, the liquid medicine filter is provided with two circular air vents, and a PTFE polyester water-blocking film is provided in the two circular air vents.

Further, a medicinal liquid buffer bottle is arranged between the medicinal liquid dripping funnel and the medicinal liquid flow rate regulator, and the internal structure of the medicinal liquid buffer bottle and the connection relationship between each structure are the same as the internal structure of the medicinal liquid dripping funnel. And the connection relationship between each structure is exactly the same.

Further, the diameter of the buoyant ball is smaller than the diameter of the limit float pipe, but larger than the diameter of the lower communication pipe.

Compared with the prior art, the beneficial effects of the utility model are:

(1) The utility model realizes the function of quick combination or separation of the infusion scalp needle and the infusion needle seat by setting the rhombus joint and the rhombus card slot. The tight connection reduces the possibility of the infusion scalp needle falling off the infusion needle seat, ensures the safety and reliability of the infusion tube during use, and reduces the occurrence of leakage;

(2) The utility model avoids air passing through after the medicinal liquid in the medicine bottle drips completely due to unattended care or when the caretaker is not paying attention during the infusion process through the setting of the limit float tube and the floating stopper ball. The infusion tube enters the inside of the human body, causing the risk of air embolism in the patient. The structure is simple, safe and reliable, and the safety and stability of the infusion set are improved.

Description of drawings

Fig. 1 is the overall structural representation of the utility model;

Fig. 2 is a top view structural diagram of the position-limiting float tube of the present invention.

Labels in the figure:

1-infusion tube main body; 2-medicine bottle insertion needle; 3-air intake pipe; 4-infusion needle seat; 5-infusion scalp needle; 6-infusion connection; device; 9-three-way dosing dropper; 10-limit float tube; 11-through hole for liquid medicine; 12-float ball; 13-liquid filter; 14-double-layer polyethersulfone filter membrane; 15 -Circular air vent; 16-PTFE polyester water-blocking film; 17-medicine buffer bottle;

601-diamond joint; 602-diamond slot;

701-upper connecting pipe; 702-lower connecting pipe.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

As shown in Fig. 1 and Fig. 2, the utility model provides a kind of safe transfusion device, comprises transfusion tube main body 1, and the top of described transfusion tube main body 1 is provided with medicine bottle pin 2, through medicine bottle pin 2 , to realize the connection between the infusion set and the medicine bottle, the needle seat of the medicine bottle insertion needle 2 is provided with an air inlet pipe 3, the bottom end of the infusion tube main body 1 is provided with an infusion needle seat 4, and the infusion needle An infusion scalp needle 5 is arranged on the seat 4, and an infusion connection piece 6 is arranged between the infusion needle holder 4 and the infusion scalp needle 5, and the infusion connection piece 6 includes a diamond joint 601 and a diamond groove 602, and the diamond shape The joint 601 is set at the end of the infusion needle seat 4 close to the infusion scalp needle 5, the diamond-shaped slot 602 is set at the end of the infusion scalp needle 5 close to the infusion needle seat 4, and the diamond-shaped joint 601 is set inside the diamond-shaped slot 602, And the rhombus connector 601 is in close contact with the rhombus slot 602. Through the setting of the rhombus connector 601 and the rhombus slot 602, the tight connection between the infusion scalp needle 5 and the infusion needle holder 4 can be realized, and the insertion and insertion due to repeated medicine pushing can be reduced. Pulling out the infusion scalp needle 5 makes it easy for the infusion scalp needle 5 to fall off from the infusion needle holder 4, and avoids the possibility that the patient pulls the infusion tube main body 1 when putting on and taking off clothes, causing the infusion scalp needle 5 and the infusion needle The seat 4 is separated, so as to achieve stable drug pushing and reduce the leakage of the medicinal solution. The diamond joint 601 and the diamond groove 602 make the combination and separation of the infusion needle seat 4 and the infusion scalp needle 5 just right, and the operation is also very convenient , making the infusion set safer and more efficient in the process of repeatedly pushing the medicine to the patient.

The infusion tube main body 1 is provided with a liquid medicine dropping bucket 7 and a liquid medicine flow rate regulator 8, which can be used to regulate and control the flow speed of the liquid medicine in the infusion tube main body 1 through the setting of the liquid medicine flow rate regulator 8. An upper connecting pipe 701 and a lower connecting pipe 702 are arranged at the center of the upper and lower ends of the dripping funnel 7 respectively. There is a three-way medicine dosing dropper 9 inside, and the setting of the three-way medicine dosing dropper 9 is convenient for adding other medicines to the medicine liquid in the infusion tube main body 1. The inner center of the medicine liquid dropper 7 is vertically provided with a cylindrical The limit float tube 10, the lower end of the limit float tube 10 is open, and a number of liquid medicine through holes 11 are arranged on the upper surface and the side wall of the limit float tube 10, and the liquid medicine through holes 11 The setting realizes the communication between the medicinal liquid in the medicinal liquid dripping hopper 7 and the medicinal liquid in the limit float tube 10, thereby realizing the suspending effect of the medicinal liquid on the float ball 12, and the limit float tube 10 is provided with a float The setting of the stopper ball 12 and the limit float tube 10 limits the position of the stopper ball 12 in the liquid medicine dripping funnel 7, so that the floating stopper ball 12 can only move in The liquid medicine dropping funnel 7 moves in the vertical center direction to prevent the floating plug ball 12 from floating and moving everywhere on the liquid medicine surface in the liquid medicine funnel 7, and when it moves to the top of the lower connecting pipe 702, the floating plug ball 12 is not in the lower connecting pipe. 702, so the blocking effect on the top of the lower communicating tube 702 cannot be realized quickly, and a small part of the air will enter the inside of the lower communicating tube 702, and then with the possibility of the infusion tube main body 1 entering the human body, floating The setting of the stopper ball 12 can avoid that after the medicine liquid in the medicine bottle drips completely, it cannot be found in time, causing air to enter the inside of the human body, causing the danger of air embolism.

The working principle of the float ball 12 is as follows:

The floating stopper ball 12 floats on the surface of the medicinal liquid in the medicinal liquid dripping funnel 7, and falls with the descent of the medicinal liquid in the medicinal liquid dripping funnel 7, until the medicinal liquid reaches the lower connecting pipe 702, the lower half of the infusion tube main body 1 The internal pressure will become smaller and smaller. Under a certain negative pressure, the floating plug ball 12 will be sucked on the top of the lower communication tube 702, and the top of the lower communication tube 702 will be sealed, thereby preventing air from entering and ensuring the safety of the infusion set. Infusion safety.

A circular medical solution filter 13 is provided below the medical solution flow rate regulator 8, and a double-layer polyethersulfone filter membrane 14 is arranged inside the medical solution filter 13, and the infusion tube main body 1 passes through The top of the double-layer polyethersulfone filter membrane 14 extends to the inside of the double-layer polyethersulfone filter membrane 14. The setting of the liquid medicine filter 13 plays a role in filtering the medicine liquid inside the infusion tube main body 1, preventing the medicine The foreign matter doped in the medium enters the human body with the liquid medicine, causing additional damage to the human body. The polyethersulfone membrane has good hydrophilicity and flux, good chemical stability and inertness, stable alkaline pH, double-layer The setting of the structure has the characteristics of strong dirt-holding capacity, regular and uniform filter holes, high filtration precision, no foreign matter falling off, small adsorption to drugs, and good drug compatibility. The drugs transported through the main body 1 of the infusion tube After passing through the filtering effect of the double-layer polyethersulfone filter membrane 14, the infusion tube main body 1 is transported to the veins of the human body.

The liquid medicine filter 13 is provided with two circular vents 15, and the two circular vents 15 are provided with a PTFE polyester water-blocking film 16, and the setting of the circular vents 15, The air bubbles contained in the liquid medicine can be eliminated to make the flow of the liquid medicine more smooth. The PTFE polyester water-blocking membrane 16 is used to block water and effectively prevent bacteria and particles in the environment from entering the liquid medicine.

A medicinal liquid buffer bottle 17 is arranged between the medicinal liquid dripping funnel 7 and the medicinal liquid flow rate regulator 8, and the internal structure of the medicinal liquid buffer bottle 17 and the connection relationship between each structure are the same as those of the medicinal liquid dripping funnel 7. The internal structure and the connection relationship between each structure are exactly the same, and the setting of the liquid medicine buffer bottle 17 further improves the safety performance of the infusion set, so that the medicine liquid in the medicine bottle is completely leaked, and when it is not found in time, it can avoid air leakage. Entering the human body, the reliability of the infusion set is enhanced through the interaction with the internal structure of the medicinal liquid dripping funnel 7.

The diameter of the buoyant ball 12 is smaller than the diameter of the limit buoyant tube 10, but greater than the diameter of the lower connecting pipe 702, which ensures that the buoyant ball 12 can move along the limitable buoyant tube 10 under the suspension of the liquid medicine. , moving up and down, and when it moves to the lower communicating pipe 702, it can block the top of the lower communicating pipe 702 to achieve a sealing effect on the lower communicating pipe 702, thereby avoiding the entry of air.

It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, no matter from all points of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, so it is intended to fall within the scope of the claims All changes within the meaning and range of equivalents of the required elements are included in the present invention. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (5)

1. A safety infusion set, comprising a transfusion tube main body (1), the top of the transfusion tube main body (1) is provided with a medicine bottle insertion needle (2), and the needle seat of the medicine bottle insertion needle (2) An air inlet pipe (3) is arranged on it, and it is characterized in that: the bottom end of the infusion tube main body (1) is provided with an infusion needle seat (4), and the infusion needle seat (4) is provided with an infusion scalp needle (5) , an infusion connection (6) is provided between the infusion needle seat (4) and the infusion scalp needle (5), and the infusion connection (6) includes a diamond joint (601) and a diamond groove (602), The rhombus connector (601) is arranged at the end of the infusion needle seat (4) close to the infusion scalp needle (5), and the diamond-shaped card slot (602) is arranged at the end of the infusion scalp needle (5) close to the infusion needle seat (4) One end of the diamond-shaped joint (601) is arranged inside the diamond-shaped slot (602), and the diamond-shaped joint (601) is in close contact with the diamond-shaped slot (602). ) and a liquid medicine flow rate regulator (8), the upper and lower connecting pipes (701) and lower connecting pipes (702) are respectively arranged at the center of the upper and lower ends of the liquid medicine dripping funnel (7), and the upper connecting pipe (701) The upper end of the upper end and the lower end of the lower connecting pipe (702) are all connected with the infusion tube main body (1), and a three-way medicine feeding dropper (9) is arranged in the upper connecting pipe (701), and the inner center of the medicine liquid dripping funnel (7) A cylindrical limit float tube (10) is vertically arranged, the lower end of the limit float tube (10) is open, and several A liquid medicine through hole (11), a floating plug ball (12) is arranged inside the limit float tube (10). 2. A safe type infusion set according to claim 1, characterized in that: a circular medical solution filter (13) is arranged below the medicinal solution flow rate regulator (8), and the medicinal solution The inside of the liquid filter (13) is provided with a double-layer polyethersulfone filter membrane (14), and the infusion tube main body (1) passes through the top of the double-layer polyethersulfone filter membrane (14) and extends to the double-layer polyethersulfone The inside of the ethersulfone filter membrane (14). 3. A safety type infusion set according to claim 2, characterized in that: said liquid medicine filter (13) is provided with two circular exhaust holes (15), two said circular vents PTFE polyester water-blocking films (16) are all arranged in the vent holes (15). 4. A safety infusion set according to claim 1, characterized in that: a buffer bottle (17) of medicinal liquid is arranged between the medicinal liquid dripping funnel (7) and the medicinal liquid flow rate regulator (8) , and the internal structure of the medicinal solution buffer bottle (17) and the connection relationship between each structure are exactly the same as the internal structure of the medicinal solution dripping funnel (7) and the connection relationship between each structure. 5. A safe type infusion set according to claim 1, characterized in that: the diameter of the buoyant ball (12) is smaller than the diameter of the limit buoyant tube (10), but larger than that of the lower connecting tube (702 )diameter of.