CN217447952U - Marrow cavity puncture injector - Google Patents

Abstract

The utility model discloses an intramedullary cavity puncture syringe, comprising: a puncture needle, which is used for puncturing into a human body to realize the injection of medicinal liquid; a base, the root of the puncture needle is arranged on the base, so that the puncture needle is fixed on base; infusion tube, the infusion tube is connected to the puncture needle, so as to infuse into the puncture needle through the infusion tube; the power part, the power part is arranged in the middle of the infusion tube to provide power for the infusion; the liquid bag, the liquid bag is connected to the infusion tube, And connected to the infusion tube; the knee clamp, the knee clamp is arranged on the base, and the knee clamp is used to fix the puncture needle on the knee by clamping the knee. The utility model provides an intramedullary cavity puncture syringe. The medicinal liquid injected into the liquid bag is driven by the power part to be injected into the intramedullary cavity of the human body through the infusion tube and the puncture needle. .

Description

A kind of marrow cavity puncture syringe

technical field

The utility model relates to the technical field of medical injection devices, in particular to a marrow cavity puncture syringe.

Background technique

For the rescue of critically ill patients in the emergency, the rapid establishment of an effective venous channel is one of the necessary conditions for successful rescue.

However, for patients with cardiac arrest or shock, due to the collapse of peripheral veins due to circulatory failure, it is very difficult to establish a venous channel, and repeated puncture delays the rescue opportunity.

A temporary emergency channel was established by intramedullary infusion in the proximal tibia to replace the intravenous channel, and rapid rehydration and related rescue drugs were given to gain time for rescue.

The medullary cavity is composed of a reticular cavernous sinus-like space, which communicates with the blood circulation through the central canal, feeding veins and catheters. Therefore, the fluids and drugs infused through the bone marrow cavity can also quickly enter the blood circulation, so as to achieve the therapeutic effect.

Advantages (1) Since the bone marrow cavity is surrounded and supported by bony structures, it will not collapse due to insufficient blood volume like the vascular cavity, so when the establishment of peripheral venous channels is difficult, this channel is the only effective fluid replacement channel that can be quickly obtained. .

(2) The speed of fluid infusion through intramedullary canal puncture is fast, which can reach 15-30ml/min (reports can reach 56ml/min) under the support of a pressurized pump, which provides a channel for rapid fluid infusion during rescue and lays the foundation for successful rescue. .

(3) The intramedullary infusion of the proximal tibia is used, which is simple, easy to operate and easy to master. Ordinary qualified medical staff can master it after 1 to 2 hours of training. The bony landmarks at this place are obvious and easy to locate, and the puncture operation can be completed in a short period of time, thus gaining time for rescue.

(4) There are no special restrictions on fluids and drugs for intramedullary puncture and infusion. The fluids and drugs that can be used intravenously can be given through intramedullary infusion, including blood and specific detoxification drugs. In addition, the pharmacokinetics, pharmacodynamics and dosage of drugs infused by this route are the same as those of peripheral vascular drugs. In our department, there have been successful examples of rescuing patients with hemorrhagic shock through blood transfusion in the bone marrow cavity.

(5) The cortical bone of the upper tibia is thicker, which has a good fixation effect on the puncture needle. It is enough to cover it with local sterile accessories, and no other special fixation is required.

(6) Other rescue measures can be carried out at the same time when using marrow cavity puncture and infusion, without affecting the implementation of other rescue measures.

Based on this, it is necessary to design a bone marrow puncture injection device.

Utility model content

In view of the above-mentioned situation, the purpose of this utility model is to provide a kind of intramedullary cavity puncture syringe, and the scheme is as follows:

An intramedullary puncture syringe, comprising:

A puncture needle, which is used for puncturing into the human body to realize the injection of medicinal liquid;

a base, the root of the puncture needle is arranged on the base, so that the puncture needle is fixed on the base;

an infusion tube, which is connected to the puncture needle, so as to infuse fluid into the puncture needle through the infusion tube;

a power part, which is arranged in the middle of the infusion tube to provide power for infusion;

a liquid bag, which is connected to the infusion tube and connected to the infusion tube;

The knee clamp is arranged on the base, and the knee clamp is used to fix the puncture needle on the knee by clamping the knee.

In some embodiments, the powered portion is an airbag.

In some embodiments, the power part is provided with a first outer pipe, and the first outer pipe connects the inside and the outside of the power part.

In some embodiments, the flexitank is provided with a second outer pipe, and the second outer pipe connects the inside and the outside of the flexitank.

In some embodiments, the knee clamp includes a pair of upper and lower halves that are rotatably connected to the base.

In some embodiments, the upper and lower halves are identical in structure.

In some embodiments, each of the upper half and the lower half includes a plurality of independent arc pieces, the plurality of arc pieces are connected end to end, and two adjacent arc pieces are rotatably connected.

In some embodiments, the knee clamp further includes a soft strap disposed on the inner walls of the upper and lower halves.

In some embodiments, the free ends of the upper and lower halves are respectively provided with male and female fasteners for snap-fit connection.

In some embodiments, the arc pieces are all made of stainless steel.

The beneficial effects of the present utility model:

The utility model provides an intramedullary cavity puncture syringe. The medicinal liquid injected into the liquid bag is driven by the power part to be injected into the intramedullary cavity of the human body through the infusion tube and the puncture needle. .

Description of drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention.

Detailed ways

Below in conjunction with accompanying drawing and embodiment, the utility model is made in the specific implementation process, as further preferred description:

As shown in FIG. 1 , an intramedullary puncture syringe includes a puncture needle 100 , a base 200 , an infusion tube 300 , a power part 400 , a fluid bag 500 and a knee clamp 600 .

The puncture needle 100 is used to puncture into the human body, that is, to be inserted into the bone marrow cavity, so as to realize the injection of medicinal liquid.

During specific implementation, the puncture needle 100 is made of medical stainless steel.

The base 200 plays a fixing role, and the puncture needle 100 is arranged on the base 200 to realize the fixation of the puncture needle 100 .

The puncture needle 100 is disposed on the base 200 through the interior, so that the liquid medicine can be introduced into the puncture needle 100 through the hole in the base 200 to complete the injection.

In a specific implementation, the root of the puncture needle 100 is disposed on the base 200 , so that the puncture needle 100 is fixed on the base 200 .

The infusion tube 300 is used for draining the medicinal solution, and the medicinal solution is input into the puncture needle 100 to complete the medicinal solution injection.

The infusion tube 300 is connected to the puncture needle 100 .

The power unit 400 is disposed in the middle of the infusion tube 300 to provide power for infusion.

In some embodiments, the power part 400 is an airbag. In specific use, by squeezing the airbag, it is realized to provide power for the medicinal liquid.

In some embodiments, the power part 400 is a syringe. In specific use, the injection of medicinal liquid is realized by generating negative pressure through a syringe.

In some embodiments, the power part 400 is provided with a first outer pipe 410 , and the first outer pipe 410 connects the inside and the outside of the power part 400 .

The air pressure adjustment is realized by the provided first outer pipe 410 .

The liquid bag 500 is used to contain the medicinal liquid to be injected.

In order to realize the drainage and injection of medicinal liquid, the liquid bag 500 is connected to the infusion tube 300 and connected to the infusion tube 300 .

In some embodiments, the liquid bag 500 is provided with a second outer pipe 510 , and the second outer pipe 510 connects the inside and the outside of the liquid bag 500 .

The liquid medicine can be injected into the liquid bag 500 through the provided second outer pipe 510 .

In order to secure the entire device to the human body during injection, a knee clamp 600 is provided.

The knee clamp 600 is disposed on the base 200, and the knee clamp 600 is used to fix the puncture needle 100 on the knee by clamping the knee.

In order to provide a specific structural form of the knee clamp 600, in some embodiments, the knee clamp 600 includes an upper half 610 and a lower half 620 that are arranged oppositely. The upper half 610 and the lower half 620 The half piece 620 is rotatably connected to the base 200 .

Through the opening and closing of the upper half piece 610 and the lower half piece 620, the entire device is fixed to the human body, so as to realize the injection stably.

In order to facilitate manufacture, assembly and fixation, in some embodiments, the upper half 610 and the lower half 620 have the same structure.

In order to provide a specific structural form of the knee clamp 600, and through this structure, it can adapt to fastening objects of different thicknesses. In some embodiments, the upper half 610 and the lower half 620 each include a plurality of independent arcs 611, 621, the arcs 611, 621 are connected end to end, and two adjacent arcs 611, 621 are rotatably connected.

The arc pieces 611 and 621 are arc-shaped, so as to adapt to the surface of the human body.

The plurality of arc pieces 611, 621 are rotatably connected to adapt to the thickness of the securing object through rotation.

In order to adapt to the human body and bring more comfort; at the same time, avoid protruding structures to hurt the human body. In some embodiments, the knee clamp 600 further includes a soft band 630 disposed on the inner walls of the upper half 610 and the lower half 620 .

In order to provide a connecting structure for the upper half 610 and the lower half 620 . In some embodiments, the free ends of the upper half 610 and the lower half 620 are respectively provided with male fasteners 612 and female fasteners 622 for snap-fit connection.

In order to ensure the structural strength of the device. In some embodiments, the arc pieces 611 and 621 are all made of stainless steel.

The preferred embodiments of the present invention have been described in detail above. It should be understood that those skilled in the art can make many modifications and changes according to the concept of the present invention without creative efforts. Therefore, any technical solutions that can be obtained by those skilled in the art through logical analysis, reasoning or limited experiments on the basis of the prior art according to the concept of the present invention shall fall within the protection scope determined by the claims. .

Claims (10)

1. An intramedullary canal puncture injector, characterized in that it comprises:

the puncture needle (100), the puncture needle (100) is used for puncturing into the human body to realize the injection of the liquid medicine;

a base (200) to which the root of the puncture needle (100) is attached so that the puncture needle (100) is fixed to the base (200);

an infusion tube (300), wherein the infusion tube (300) is communicated with the puncture needle (100) so as to be infused to the puncture needle (100) through the infusion tube (300);

the power part (400), the power part (400) is arranged in the middle of the infusion tube (300) to provide power for infusion;

a fluid bag (500), the fluid bag (500) being connected to the infusion tube (300) and being connected to the infusion tube (300);

a knee clamp (600), the knee clamp (600) being provided to the base (200), and the knee clamp (600) being used to fix the puncture needle (100) to the knee by clamping the knee.

2. An intramedullary canal puncture injector according to claim 1, characterized in that: the power part (400) is an air bag.

3. An intramedullary canal puncture injector according to claim 2, characterized in that: the power portion (400) is provided with a first external connecting pipe (410), and the first external connecting pipe (410) is communicated with the inside and the outside of the power portion (400).

4. A medullary cavity penetrating injector as claimed in claim 1, wherein: the liquid bag (500) is provided with a second external connecting pipe (510), and the second external connecting pipe (510) is communicated with the inside and the outside of the liquid bag (500).

5. An intramedullary canal puncture injector according to claim 1, characterized in that: the knee clamp (600) comprises an upper half part (610) and a lower half part (620) which are oppositely arranged, and the upper half part (610) and the lower half part (620) are rotatably connected to the base (200).

6. An intramedullary canal puncture injector according to claim 5, characterized in that: the upper half (610) and the lower half (620) are identical in structure.

7. An intramedullary canal puncture injector according to claim 6, characterized in that: the upper half part (610) and the lower half part (620) respectively comprise a plurality of independent arc pieces (611, 621), the arc pieces (611, 621) are connected end to end, and two adjacent arc pieces (611, 621) are rotatably connected.

8. An intramedullary canal puncture injector according to claim 7, wherein: the knee clamp (600) further includes a soft strap (630), the soft strap (630) being disposed on an inner wall of the upper half (610) and the lower half (620).

9. An intramedullary canal puncture injector according to any of claims 5 to 8, characterized in that: the free ends of the upper half (610) and the lower half (620) are respectively provided with a male fastener (612) and a female fastener (622) for buckling connection.

10. A medullary cavity penetrating injector as claimed in claim 7, wherein: the arc pieces (611 and 621) are made of stainless steel.

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