CN-116392214-B - Bone marrow cavity transfusion device under high and cold environment

CN116392214BCN 116392214 BCN116392214 BCN 116392214BCN-116392214-B

Abstract

The invention discloses an intra-medullary transfusion device in a severe cold environment, which belongs to the technical field of medical appliances and comprises a shell, a puncture needle and a transfusion assembly, wherein a supporting seat is fixedly arranged on one side of the shell, which is positioned at an opening end, an ejection assembly is arranged in the shell, a threaded shell is fixedly arranged on one side of the supporting seat, which is far away from the shell, the puncture needle consists of a needle head and a needle tail, wherein the needle head and the needle tail are fixedly connected with each other, one side of the needle head, which is far away from the needle tail, is in a conical shape, and a limited depth assembly is arranged on the threaded shell.

Inventors

YAN KANG
WANG YINGE
YAO SHAOFENG
LIAO BO
ZHANG CHAO
Feng Fahui
LV MIAOMIAO
ZHANG HAO
QIAO HUANHUAN
LI JIHAI
ZHANG ENWEI

Assignees

中国人民解放军空军军医大学

Dates

Publication Date: 20260508
Application Date: 20230412

Claims (6)

1. The bone marrow cavity transfusion device in the alpine environment comprises a shell (1), a puncture needle (2) and a transfusion component (10), and is characterized in that a supporting seat (3) is fixedly arranged on one side of the shell (1) at the opening end, an ejection component (4) is arranged in the shell (1), a thread shell (5) is fixedly arranged on one side of the supporting seat (3) away from the shell (1), the puncture needle (2) consists of a needle head (21) and a needle tail (22), the needle head (21) and the needle tail (22) are fixedly connected with each other, one side of the needle head (21) away from the needle tail (22) is in a conical shape, and a depth limiting component (6) is arranged on the thread shell (5); The ejection assembly (4) comprises a high-pressure spring (41) arranged in a shell (1), wherein an ejection plate (42) is slidably arranged on one side of the shell (1) located in the high-pressure spring (41), two ends of the high-pressure spring (41) are fixedly connected with the shell (1) and the ejection plate (42) respectively, clamping assemblies (7) are symmetrically arranged on the outer side of the shell (1), a connecting assembly (8) is arranged between the ejection plate (42) and a needle tail (22), a clamping groove (71) is formed in one side of the shell (1), the clamping assemblies (7) comprise buckles (72) arranged on one side of the clamping groove (71), the buckles (72) are hinged with the shell (1), one ends of the buckles (72) are slidably clamped in the inside of the clamping groove (71), the buckles (72) are in butt joint with the ejection plate (42), first springs (73) are arranged between the buckles (72) and the shell (1), and two ends of each first spring (73) are fixedly connected with the corresponding shell (1).
2. The bone marrow intra-cavity transfusion device in a severe cold environment according to claim 1, wherein the ejection plate (42) is symmetrically provided with sliding rails (81), the connecting assembly (8) comprises connecting blocks (82) which are arranged in the sliding rails (81) in a sliding manner, one adjacent side of each connecting block (82) is arc-shaped, a second spring (83) is arranged in the middle of each sliding rail (81), two ends of each second spring (83) are fixedly connected with the two connecting blocks (82) respectively, and the needle tail (22) is arranged in the middle of each connecting block (82).
3. The bone marrow intra-cavity transfusion device under a severe cold environment according to claim 2, wherein the two sides of the screw shell (5) are symmetrically provided with depth limiting grooves (61), the depth limiting assembly (6) comprises a screw sleeve (62) which is arranged on the screw shell (5) in a screw mode, a depth limiting block (63) is symmetrically arranged in the screw sleeve (62) in a sliding mode, the depth limiting block (63) is arranged in the depth limiting grooves (61) in a sliding mode, and the depth limiting block (63) is in butt joint with the needle tail (22).
4. The bone marrow cavity transfusion device under a high and cold environment according to claim 3, wherein the transfusion assembly (10) comprises an arc-shaped plate (101), a limiting clamp (102) and a transfusion tube (103), medical adhesive tapes are arranged on two sides of the arc-shaped plate (101), a limiting groove (104) is formed in the middle of the arc-shaped plate (101), the limiting clamp (102) is fixedly arranged on one side of the arc-shaped plate (101), and the transfusion tube (103) penetrates through the limiting clamp (102).
5. The device for bone marrow cavity transfusion in high and cold environment according to claim 4, wherein a connector (9) is fixedly arranged on one side of the needle tail (22) far away from the needle head (21), and the connector (9) is matched with the transfusion tube (103).
6. The bone marrow cavity transfusion device in a high and cold environment according to claim 5, wherein a conductor (11) is fixedly arranged on one side of the arc-shaped plate (101) positioned on the limiting clamp (102), and the conductor (11) is sleeved on the transfusion tube (103).

Description

Bone marrow cavity transfusion device under high and cold environment Technical Field The invention belongs to the technical field of medical appliances, and particularly relates to an intra-medullary cavity transfusion device in a severe cold environment. Background In the rescue of critical patients, it is important to quickly establish vascular access. In addition to rapid and effective hemostasis, rapid blood transfusion and fluid replacement through vascular access are important measures for recovering the patient suffering from hemorrhagic shock, and in the case of cardiac arrest, it is necessary to administer drugs such as epinephrine and amiodarone through vascular access, and in the case of infectious shock, it is necessary to administer drugs such as rapid fluid replacement and vasoactive drugs through vascular access. Clinically available routes of administration are peripheral veins, central veins, endotracheal tubes, and bone marrow cavities. At present, most hospitals in China try to establish a peripheral venous access, and choose to establish a central venous transfusion access after puncture failure. Patients suffering from trauma or shock often suffer from peripheral circulatory failure, poor filling of peripheral venous networks, collapse, limb injury and the like, thereby affecting the success rate and time of peripheral venous puncture. The technical requirement for establishing the central venous catheterization is relatively high, the time consumption is long, the puncture failure rate is high (generally 10% -40%), and especially the puncture difficulty of patients suffering from sudden cardiac arrest and uninterrupted extra-cardiac compression is high. Only a part of the medicine can be used for the endotracheal intubation, and the liquid application is limited. This can lead to a loss of optimal dosing timing and even failure of rescue. Compared with peripheral vein and central vein access, the marrow intra-cavity transfusion technology has the advantages that an effective liquid recovery channel is established within 10-30 seconds at maximum, the operation success rate is higher, and a large amount of blood transfusion, fluid infusion and medicine consumption can be realized rapidly, so that the marrow intra-cavity transfusion technology has great advantages. Accordingly, the American Heart Association, european Committee for resuscitation and International Commission for resuscitation indicate that when peripheral venipuncture is difficult in critical patients, it is recommended to establish a blood vessel passageway in the bone marrow cavity preferentially, and a central venous passageway is established after the condition is stable. There are many intramedullary transfusion devices on the market at present, and many are electric injection (for example, publication number: CN 100382854C), but in some extreme environments, the electric energy can be affected by the ambient temperature, and the transfusion effect is affected. The existing bone marrow intra-cavity infusion device cannot control the temperature of infusion liquid. Under the condition of high and cold, the infusion liquid has too low temperature, damages the organism, and even freezes the infusion liquid, so that the infusion fails. In view of the above, the present invention provides an intramedullary transfusion device suitable for a severe cold environment, which overcomes the above technical problems. Disclosure of Invention The invention aims to provide an intra-medullary transfusion device in a severe cold environment so as to solve the problems in the background technology. In order to achieve the above purpose, the present invention provides the following technical solutions: The bone marrow cavity transfusion device in the alpine environment comprises a shell, a puncture needle and a transfusion component, wherein a supporting seat is fixedly arranged on one side of the shell, which is positioned at the opening end, an ejection component is arranged in the shell, and a thread shell is fixedly arranged on one side of the supporting seat, which is far away from the shell; The puncture needle consists of a needle head and a needle tail, wherein the needle head and the needle tail are fixedly connected with each other, one side of the needle head, which is far away from the needle tail, is arranged in a conical shape, and a limited-depth assembly is arranged on the threaded shell. As a preferable scheme of the invention, the ejection assembly comprises a high-pressure spring arranged in a shell, wherein an ejection plate is arranged on one side of the shell, which is positioned on the high-pressure spring, in a sliding manner, and two ends of the high-pressure spring are fixedly connected with the shell and the ejection plate respectively; wherein clamping components are symmetrically arranged on the outer side of the shell; a connecting component is arranged between the ejection plate and the needle tail. As a p