CN211561355U - A blood transfusion device for infants and young children - Google Patents

Abstract

The utility model provides a blood transfusion device for infants and young children, comprising a syringe, an extension tube and a three-way joint; the syringe comprises an empty cylinder, a piston, and a push rod connected with the piston; one end of the extension tube is communicated with the empty cylinder, and the other One end is provided with a vein end joint; the three-way joint is communicated with the extension pipe, and the three-way joint is provided with an interface that can be connected with the infusion set; the push rod is provided with a transparent film protective sleeve, the transparent film protective sleeve One end opening of the transparent film protective sleeve is closed and connected to the open end of the hollow cylinder, and the other end opening of the transparent film protective sleeve is closed and connected to the push rod. The blood transfusion device for infants and young children of the utility model can be effectively connected with the transfusion set, and has strong sealing performance, which can reduce the risk of blood contamination and eliminate the risk of needle stick injuries for medical staff. Further, the utility model adopts an integrated design, which saves the operation of connecting each part during use, and at the same time reduces the risk of the connection port falling off.

Description

A blood transfusion device for infants and young children

technical field

The utility model relates to the technical field of medical devices, and more particularly, to a blood transfusion device for infants and young children.

Background technique

Blood transfusion is a common treatment method in neonatal and pediatric intensive care units, and is one of the main measures to rescue acute hemorrhage, anemia, hypoproteinemia, and severe infection. Infant blood transfusion is generally calculated according to the body weight of the blood transfusion required for intravenous drip, each blood transfusion volume is often less than the amount of blood in the bag, and the existing conventional blood transfusion device is difficult to accurately control the speed and blood transfusion volume. Therefore, blood transfusions for infants and young children now usually require medical staff to use a blood transfusion set to connect a disposable needle to drain the blood to a syringe, and then use it again. Since a disposable needle is used to connect the blood transfusion set, its connection performance is poor, and compared with conventional clinical blood transfusion devices or methods, the sealing performance of the existing syringe is poor, which easily leads to contamination in the process of blood transfer. In addition, this operation also easily increases the risk of needle stick injuries to medical staff.

Utility model content

The purpose of the present invention is to provide a blood transfusion device for infants and young children, the blood transfusion device for infants and young children can be effectively connected with the infusion set, and the sealing performance is strong, which can reduce the risk of blood contamination and eliminate the risk of medical staff being stabbed by needles .

In order to solve the above-mentioned technical problems, the technical scheme adopted by the present utility model is:

A blood transfusion device for infants and young children, comprising a syringe, an extension tube, and a three-way joint; the syringe comprises an empty cylinder, a piston, and a push rod connected with the piston; one end of the extension tube is communicated with the empty cylinder, and the other end is provided with a vein end The three-way joint is communicated with the extension pipe, and the three-way joint is provided with an interface that can be connected with the infusion set; the push rod is provided with a transparent film protective sleeve, and one end of the transparent film protective sleeve is open to the The open end of the empty cylinder is closed and connected, and the other end opening of the transparent film protective sleeve is closed and connected to the push rod, so as to isolate the outer wall of the push rod from the outside, so as to seal the empty cylinder.

The syringe, the extension tube and the three-way joint of the utility model adopt an integrated design, which saves the operation of connecting each part during use and reduces the workload of medical staff. At the same time, the connection port is reduced to reduce the risk of the connection port falling off, so as to avoid the interruption of treatment and even blood loss of the patient due to the falling off of the pipeline connection.

The utility model can keep the empty cylinder of the syringe sterile, protect the blood from being polluted, and at the same time increase the use times of the syringe in the same blood transfusion, reduce resource consumption, and conform to the concept of environmental protection.

In order to facilitate exhaust, avoid air entering the patient's body and causing harm to the patient. Further, one end of the hollow cylinder connected to the extension pipe is provided with a vent hole, and the vent hole is provided with a liquid-proof and breathable membrane.

Further, an opening of one end of the transparent film protective sleeve is closed and connected to the inner wall of the open end of the hollow cylinder.

Further, the push rod includes a piston shaft and a handle, one end of the piston shaft is connected to the piston, and one end of the piston shaft is connected to the handle; the other end of the transparent film protective sleeve is open to the Piston shaft closed connection.

Further, the connection between the transparent film protective sleeve and the piston shaft is kept at a certain distance from the handle. Specifically, a distance of at least 1 cm is left between the connection between the transparent film protective cover and the piston shaft and the handle. The purpose of this setting is to fit the slot of the syringe pump, which not only conforms to the clinical operation, but also avoids the damage of the protective film.

Further, the three-way joint is arranged on the extension pipe, between two ends of the extension pipe.

In order to ensure the sterility of each interface, and to facilitate clinical use, the phenomenon of interface contamination is avoided. Further, the interface of the three-way joint of the present invention is provided with a first protective cap. The vein end joint of the utility model is provided with a second protective cap.

Further, a fixing wing is provided at the open end of the hollow cylinder to cooperate with the syringe pump for fixing.

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

The blood transfusion device for infants and young children of the utility model can be effectively connected with the infusion set, and has strong sealing performance, which can reduce the risk of contamination and eliminate the risk of medical staff being punctured by needles. Further, the syringe, the extension tube and the three-way joint of the present invention adopt an integrated design, which saves the operation of connecting each part during use and reduces the workload of medical staff. At the same time, the connection port is reduced to reduce the risk of the connection port falling off, so as to avoid the interruption of treatment and even blood loss of the patient due to the falling off of the pipeline connection.

Description of drawings

FIG. 1 is a schematic structural diagram of the infant blood transfusion device according to the utility model.

Detailed ways

The present utility model will be further described below in conjunction with specific embodiments.

The same or similar symbols in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there are terms "upper", "lower", "left", " The orientation or positional relationship indicated by "right", "top", "bottom", "inside", "outside", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, and It is not intended to indicate or imply that the indicated device or element must have a particular orientation, be constructed and operate in a particular orientation, and therefore the terms describing positional relationships in the drawings are for illustrative purposes only and should not be construed as limitations on this patent.

In addition, if there are terms such as "first" and "second", they are only used for descriptive purposes, and are mainly used to distinguish different devices, elements or components (the specific types and structures may be the same or different), and are not used for Indicate or imply the relative importance and quantity of the indicated means, elements or components, but should not be construed as indicating or implying relative importance.

Example 1

As shown in FIG. 1 , a blood transfusion device for infants and young children includes a syringe 1, an extension tube 2, and a three-way joint 3. In this embodiment, the syringe 1, the extension tube 2, and the three-way joint 3 are integrally formed. The operation of connecting each part during use reduces the workload of medical staff. At the same time, the connection port is reduced to reduce the risk of the connection port falling off, so as to avoid the interruption of treatment and even blood loss of the patient due to the falling off of the pipeline connection.

Wherein, the syringe 1 includes an empty cylinder 110, a piston, and a push rod 120 connected to the piston. The specifications of the syringe 1 are comparable to standard syringes. The empty cylinder 110 is provided with a scale indicating the capacity; one end of the extension tube 2 is connected to the empty cylinder 110. The nipple 111 of the nipple is connected, the other end is provided with a vein end joint 210, and the open end of the empty cylinder is provided with a fixed wing; Divided into two pipe sections, the two pipe sections are respectively connected and communicated with the interface of the three-way joint 3; the three-way joint 3 is provided with an interface 310 that can be connected with an infusion set; The end fitting 210 is provided with a second protective cap 5 . The first protective cap 4 and the second protective cap 5 can be connected to the port and the venous end connector by means of plugging or threaded connection.

The push rod 120 includes a piston shaft 121 and a handle 122, one end of the piston shaft 121 is connected with the piston, and one end of the piston shaft 121 is connected with the handle 122; the push rod 120 is provided with a transparent film protective sleeve 6, and one end of the transparent film protective sleeve 6 is open It is closed and connected to the inner wall of the open end 112 of the hollow cylinder 110 , and the other end opening of the transparent film protective sleeve 6 is closed and connected to the piston shaft to isolate the outer wall of the push rod from the outside to seal the hollow cylinder. In order to fit the slot of the syringe pump, there should be at least a 1cm distance between the connection between the transparent film protective sleeve and the piston shaft and the handle.

The end of the empty cylinder 110 connected to the extension pipe 2 is provided with an exhaust hole 113 . Specifically, the exhaust hole 113 is located on the side where the empty cylinder nipple 111 is located, and the exhaust hole 113 is provided with a liquid-proof and breathable membrane.

One of the embodiments of the present invention is as follows:

(1) Connect the connector of the blood transfusion device connected with the blood product to the tee connector interface 310 of the blood transfusion device, and turn on the switch of the tee connector to make the blood transfusion device communicate with the syringe;

(2) Keep the piston on the empty cylinder 110 at the scale mark position of the required capacity, turn on the switch of the blood transfusion set, the blood product enters the syringe through the tee and the extension tube, and the gas in the empty cylinder passes through the exhaust hole on the empty cylinder. 113 is exhausted, thus realizing automatic exhaust.

(3) When the empty cylinder of the blood transfusion device is full of blood products, twist the tee joint to close the end of the blood transfusion device, so that the syringe and the extension tube at the venous end are in a state of communication, and the blood products are discharged to the extension tube at the venous end.

⑷ Install the syringe of the blood transfusion device on the syringe pump.

⑸ Remove the protective cap 5 on the venous end connector 210, connect it to the venous channel interface of the patient, and perform blood transfusion.

⑹ After the blood products in the syringe are finished, discharge the required amount of blood products into the syringe in the same way, and continue the treatment until the end of the treatment. Because the transparent film protective cover 6 is designed on the syringe, the empty cylinder is sealed. Ensure that the entire blood transfusion device is in a sterile state, and there is no need to replace the syringe during the period.

Obviously, the above-mentioned embodiments of the present invention are only examples for clearly illustrating the present invention, rather than limiting the implementation of the present invention. For those of ordinary skill in the art, changes or modifications in other different forms can also be made on the basis of the above description. There is no need and cannot be exhaustive of all implementations here. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model shall be included within the protection scope of the claims of the present utility model.

Claims (9)

1. an infant blood transfusion device, is characterized in that, comprises syringe, extension tube, tee joint; The syringe includes an empty cylinder, a piston, and a push rod connected with the piston; One end of the extension pipe is communicated with the empty cylinder, and the other end is provided with a vein end joint; The three-way joint is communicated with the extension pipe, and the three-way joint is provided with an interface that can be connected with the infusion set; The push rod is provided with a transparent film protective sleeve, one end opening of the transparent film protective sleeve is closed and connected to the open end of the hollow cylinder, and the other end opening of the transparent film protective sleeve is closed and connected to the push rod, to seal the empty cylinder. 2 . The blood transfusion device for infants and young children according to claim 1 , wherein a vent hole is provided at one end of the hollow cylinder connected to the extension pipe, and the vent hole is provided with a liquid-proof and breathable membrane. 3 . 3 . The blood transfusion device for infants and young children according to claim 1 or 2 , wherein an opening of one end of the transparent film protective cover is closed and connected to the inner wall of the opening end of the hollow cylinder. 4 . 4. The infant blood transfusion device according to claim 1 or 2, wherein the push rod comprises a piston shaft and a handle, one end of the piston shaft is connected to the piston, and one end of the piston shaft is connected to the The handle is connected; the other end opening of the transparent film protective sleeve is closed and connected with the piston shaft. 5 . The blood transfusion device for infants and young children according to claim 4 , wherein the connection between the transparent film protective sleeve and the piston shaft is kept at a certain distance from the handle. 6 . 6 . The blood transfusion device for infants and young children according to claim 1 , wherein the three-way joint is arranged on the extension tube and is located between two ends of the extension tube. 7 . 7 . The blood transfusion device for infants and young children according to claim 1 , wherein the interface of the three-way connector is provided with a first protective cap. 8 . 8 . The blood transfusion device for infants and young children according to claim 1 , wherein the venous end connector is provided with a second protective cap. 9 . 9 . The blood transfusion device for infants and young children according to claim 1 , wherein a fixed wing is provided at the open end of the hollow cylinder. 10 .

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