CN217960855U

CN217960855U - Rapid blood transfusion device

Info

Publication number: CN217960855U
Application number: CN202123410989.8U
Authority: CN
Inventors: 阳鑫; 曾思达; 曹晓唯
Original assignee: Shenzhen Huixinuo Technology Co ltd
Current assignee: Shenzhen Huixinuo Technology Co ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-12-06
Anticipated expiration: 2031-12-31

Abstract

The embodiment of the utility model provides a quick blood transfusion device, it includes: a transfusion cannula, the proximal end of which is provided with a first connector; the proximal end of the expansion pipe is provided with a second joint, and the distal end of the expansion pipe is provided with a flexible conical tip part; the proximal end of the puncture needle core is provided with a third joint, and the distal end of the puncture needle core is a rigid needle point; wherein the dilation tube passes through an interior of the blood transfusion cannula and at least a majority of the flexible tapered tip portion passes out of a distal end of the blood transfusion cannula; the puncture needle core passes through the interior of the expansion tube, the rigid needle point penetrates out of the flexible conical tip part of the expansion tube, and the second joint is connected with the third joint. Can improve the efficiency and the security of blood transfusion process through this application, be favorable to simplifying external blood transfusion operation.

Description

Rapid blood transfusion device

Technical Field

The utility model relates to the technical field of medical equipment, especially, relate to a quick blood transfusion device.

Background

At present, the clinical treatment for patients with major bleeding symptoms mainly adopts rapid artificial extracorporeal blood transfusion measures to supplement blood for the patients so as to achieve the purpose of maintaining the vital signs of the patients. However, the existing artificial extracorporeal blood transfusion mode needs medical care personnel to frequently puncture, expand and place the blood vessel of the patient, can not realize the one-time puncture, expansion and placement operation of the blood vessel of the patient, needs the medical care personnel to frequently operate, and wastes time and labor. Therefore, there is a need for a blood transfusion device that overcomes the above-mentioned drawbacks, i.e., "puncture, dilate, and place the blood vessel of a patient frequently".

SUMMERY OF THE UTILITY MODEL

A main object of the utility model is to provide a rapid blood transfusion device to solve the problem that the disposable blood vessel puncture, expansion, putting the pipe operation can't be realized to current external blood transfusion mode.

According to the embodiment of the utility model provides a quick blood transfusion device, it includes: a transfusion cannula, the proximal end of which is provided with a first joint; the near end of the expansion pipe is provided with a second joint, and the far end of the expansion pipe is provided with a flexible conical tip part; the proximal end of the puncture needle core is provided with a third joint, and the distal end of the puncture needle core is a rigid needle point; wherein the dilation tube passes through an interior of the blood transfer cannula and at least a majority of the flexible tapered tip portion passes out of a distal end of the blood transfer cannula; the puncture needle core passes through the interior of the expansion tube, the rigid needle point penetrates out of the flexible conical tip part of the expansion tube, and the second joint is connected with the third joint.

Wherein the first connector, the second connector and the third connector are all luer connectors, and the second connector and the third connector are connected through luer inner and outer cone locking connectors.

Wherein, the inner surface of the transfusion cannula is closely attached with the outer surface of the expansion tube.

Wherein the length of the blood transfusion cannula is less than that of the expansion tube, and the length of the expansion tube is less than that of the puncture needle core.

Wherein, the blood transfusion sleeve and the expansion tube are flexible and smooth tube bodies.

Wherein the soft tapered tip portion of the dilation tube is softer than the body of the dilation tube.

According to the technical scheme of the utility model, through the external to interior order cover of blood transfusion sleeve pipe, expansion pipe and puncture needle core establish, puncture needle core drives expansion pipe and blood transfusion sleeve pipe and realizes disposable blood vessel puncture, expansion, puts the pipe operation, and convenient to use, the blood transfusion is quick, can improve the efficiency and the security of blood transfusion process, is favorable to simplifying external blood transfusion operation.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without undue limitation to the invention. In the drawings:

fig. 1 is a schematic view of a blood transfusion cannula according to an embodiment of the present invention;

FIG. 2 is a schematic view of an expansion tube according to an embodiment of the present invention;

FIG. 3 is a schematic view of a lancet core according to an embodiment of the present invention;

fig. 4 is a schematic diagram of a rapid blood transfusion apparatus according to an embodiment of the present invention;

FIG. 5 is a schematic view of the cross-section of FIG. 4;

fig. 6A to 6D are schematic views of a blood transfusion process according to an embodiment of the present invention, respectively.

Detailed Description

To make the purpose, technical solution and advantages of the present invention clearer, the following description will be given with reference to the embodiments of the present invention and the accompanying drawings, in which the technical solution of the present invention is clearly and completely described. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The technical solution provided by the embodiments of the present invention is described in detail below with reference to the accompanying drawings.

Referring to fig. 1 to 5, a rapid blood transfusion apparatus according to an embodiment of the present application includes at least: a blood cannula 1, an expansion tube 2 and a puncture needle core 3, which are described in detail below.

Referring to fig. 1, the transfusion cannula 1 comprises a flexible and smooth tube body with a uniform tube diameter, and a first connector 11 is arranged at the proximal end of the tube body of the transfusion cannula 1, wherein the first connector 11 can be a luer connector. The shape of the transfusion cannula 1 can be adjusted along with the blood vessel after entering the blood vessel, and the blood vessel can not be damaged.

Referring to fig. 2, the extension tube 2 has a flexible soft and smooth tube body, and the tube body of the extension tube 2 can be bent by an external force, or the tube body of the extension tube 2 has a hardness greater than that of the tube body of the transfusion cannula 1. The dilation tube 2 comprises a second nipple 21 at the proximal end of the tube body and a flexible tapered tip 22 at the distal end of the dilation tube 2. In the present embodiment, the length of the tube body of the extension tube 2 is greater than the length of the tube body of the transfusion cannula 1, and the inner diameter of the transfusion cannula 1 is slightly greater than the outer diameter of the extension tube 2. When the dilating tube 2 and the transfusion cannula 1 are connected, the flexible conical tip portion 22 of the dilating tube 2 enters the transfusion cannula 1 from the first connector 11 of the transfusion cannula 1 and exits the distal end of the transfusion cannula 1. After the connection of the extension tube 2 and the transfusion cannula 1, the outer surface of the tube body of the extension tube 2 and the inner surface of the transfusion cannula 1 can be tightly attached without a significant gap therebetween.

Referring to FIG. 3, the lancet 3 has a rigid lancet body, and the lancet 3 includes a third adapter 31 at the proximal end of the lancet body and a rigid needle tip 32 at the distal end of the lancet body. Wherein, the puncture needle core 3 can be a smooth stainless steel needle core. In the present embodiment, the puncture needle core 3 has a length larger than the length of the tubular body of the expansion tube 2, and the inner diameter of the expansion tube 2 is larger than the diameter of the puncture needle core 3. When the puncture needle core 3 and the dilating tube 2 are connected, the rigid needle tip 32 of the puncture needle core 3 enters the dilating tube 2 from the second joint 21 of the dilating tube 2 and passes out of the distal end of the flexible tapered tip portion 22 of the dilating tube 2.

With combined reference to fig. 4 and 5, in assembling the rapid transfusion device 5, the transfusion cannula 1 and the dilating tube 2 are first assembled, the dilating tube 2 is passed through the interior of the transfusion cannula 1, and most or all of the flexible tapered tip portion 22 is exposed from the distal end of the transfusion cannula 1 because the length of the dilating tube 2 is greater than the length of the transfusion cannula 1. Then, the puncture needle core 3 is passed through the inside of the expanding tube 2, and the third adapter 31 and the second adapter 21 are connected. Since the length of the puncture needle core 3 is longer than that of the dilating tube 2, most or all of the rigid needle tip 32 is exposed from the flexible tapered tip portion 22. In practical applications, the second connector 21 and the third connector 31 may be luer connectors, for example, one of the second connector 21 and the third connector 31 is an inner cone locking connector, and the other is an outer cone locking connector, which is not limited to this, and those skilled in the art can select other suitable connectors according to the needs.

Referring to fig. 6A to 6D, the transfusion operation of the rapid transfusion apparatus according to the embodiment of the present application is:

first, the rigid needle tip 32 of the assembled rapid blood transfusion device 5 is punctured through the wall of the blood vessel so that the rapid blood transfusion device 5 enters the blood vessel.

Next, the third joint 31 and the second joint 21 are released, and the puncture needle core 3 is withdrawn from the expanding tube 2 while pushing the expanding tube 2 into the blood vessel (at a proper position). Because the flexible conical tip 22 is soft and easy to deform and bend, the patient does not need to worry about the damage to the blood vessel caused by improper operation in the process of placing the tube.

Subsequently, the extension tube 2 is pushed to deliver the transfusion cannula 1 into the blood vessel (at a proper position), and then the extension tube 2 is withdrawn. Because the transfusion cannula 1 is a flexible and smooth tube body, the shape of the transfusion cannula 1 can be adjusted along with the blood vessel when the transfusion cannula is pushed in, and the blood vessel of a patient can not be injured.

Finally, the transfusion cannula 1 is fixed, the first connector 11 is connected with the transfusion tube connector 41 of the external transfusion tube 4, so that the transfusion cannula 1 and the transfusion tube 4 are connected to establish a transfusion passage, and then the transfusion operation for the patient can be completed for the artificial extracorporeal transfusion. Wherein the direction of the arrows in the tubing of fig. 6D indicate the direction of blood transfusion flow.

According to the application, quick blood transfusion device, the puncture needle core of accessible most advanced drives expansion pipe and blood transfusion sleeve pipe and realizes disposable blood vessel puncture, expansion, puts a tub operation, and the expansion pipe tip is soft, can reduce because of the expansion, put the risk that the operation is improper to lead the blood vessel damage of sick person of tub in-process, convenient to use, the blood transfusion is quick, can improve the efficiency and the security of external blood transfusion process, be favorable to simplifying the operation and reduce the injury to the patient.

The above description is only an example of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A rapid blood transfusion device, comprising:

a transfusion cannula, the proximal end of which is provided with a first joint;

the proximal end of the expansion pipe is provided with a second joint, and the distal end of the expansion pipe is provided with a flexible conical tip part;

the proximal end of the puncture needle core is provided with a third joint, and the distal end of the puncture needle core is a rigid needle point;

wherein the dilation tube passes through an interior of the blood transfer cannula and at least a majority of the flexible tapered tip portion passes out of a distal end of the blood transfer cannula; the puncture needle core penetrates through the interior of the expansion tube, the rigid needle point penetrates through the flexible conical tip part of the expansion tube, and the second joint is connected with the third joint.

2. The rapid blood transfusion device according to claim 1, wherein said first connector, said second connector and said third connector are all luer connectors, and said second connector and said third connector are connected by luer internal and external cone locking connectors.

3. The rapid blood transfusion device according to claim 1, wherein the inner surface of the transfusion cannula is in close fit with the outer surface of the expansion tube.

4. The rapid blood transfusion device according to claim 1, wherein the length of the transfusion cannula is smaller than the length of the expansion tube, and the length of the expansion tube is smaller than the length of the puncture needle core.

5. The rapid blood transfusion device according to claim 1, wherein the transfusion cannula and the expansion tube are flexible smooth tube bodies.

6. The rapid blood transfusion device according to claim 1, wherein the soft tapered tip portion of the dilating tube is more flexible than the body of the dilating tube.