CN210813049U - A new type of bone marrow infusion puncture device - Google Patents

Abstract

The utility model discloses a novel bone marrow infusion puncture device, comprising a puncture needle, a hand support, a body, a cover, a catheter, a three-way connecting pipe, a regulator, a filter, a catheter connector and a needle core; the utility model utilizes a cover Body, catheter and three-way connecting tube, the bone penetrating needle can be connected to the infusion set (or blood infusion set) through the main pipeline and catheter connector, and the side hole of the three-way connecting tube can be connected to the syringe (or infusion set) according to the needs of the disease. , The medicine can be repeatedly infused, and there is no need to disconnect the connection when the medicine is added repeatedly.

Description

A new type of bone marrow infusion puncture device

technical field

The invention relates to the technical field of ankle joint support, in particular to a novel puncture device for bone marrow infusion.

Background technique

Bone marrow infusion is an emergency infusion method established under special circumstances. For critically ill patients who cannot routinely undergo venipuncture, intramedullary infusion is a fast, safe and effective alternative.

At present, there are three main types of intramedullary puncture infusion devices: intramedullary injection device, bone marrow infusion gun, and FAST1 infusion set. Among them, the intramedullary injection device (EZ-IO) has been marketed in China, but it is expensive and requires the consent of the patient's family before use, so it is difficult to popularize and apply in the short term. In order to meet the needs of clinical rescue of critically ill patients, according to its principle, the hospital emergency department uses a bone marrow puncture needle to complete this operation. The bone piercing bag is cheap, easy to obtain and widely used. In actual clinical work, for critically ill patients, although medical staff have successfully established the intramedullary infusion access, they still need to repeatedly inject rescue drugs. Due to the lack of a dedicated connection pipeline, the bone puncture needle can only be disconnected. The connection with the infusion set (or blood transfusion set) is repeated many times, which can easily lead to the displacement and prolapse of the bone puncture needle, thereby causing the extravasation of the medicinal solution, causing the patient's puncture site limb swelling, infection, osteofascial compartment syndrome, etc. It not only increases the suffering of patients and medical expenses, but also increases the workload of nurses and increases the hidden dangers of medical safety.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a novel bone marrow infusion puncture device.

In order to achieve the above purpose, the technical solution of the present invention is as follows: a novel puncture device for bone marrow infusion includes a puncture needle, a hand rest, a body, a cover, a catheter, a three-way connecting pipe, a regulator, a filter, a catheter connector and a needle core.

One end of the body is sequentially provided with external threads and grooves from left to right, and the other end of the body is sequentially provided with a support piece and a puncture needle. The inner cavity of the body is communicated with the inner cavity of the puncture needle. A pair of holes is symmetrically arranged, the bottom of the handle is provided with an arc-shaped end, the rotating shaft runs through the bottom of the handle and the handle is horizontally installed in the square hole, and the conduit on the right end of the cover is connected with a tee connection The output liquid port of the pipe, the three-way connecting pipe is also provided with a main pipeline and a side channel as the input liquid port, the main pipeline of the three-way connecting pipe is connected to the output liquid port of the filter through a conduit, and the other input liquid port of the filter passes through The conduit is connected to the conduit connector, the regulator is installed on the conduit between the main conduit and the filter, the inner cavity of the three-way connecting pipe is communicated with the inner cavity of the conduit, and the inner cavity of the conduit is communicated with the filter cavity of the filter, The inner cavity of the catheter is also communicated with the liquid guide cavity of the cover body, and a sealing gasket is arranged at the junction of the liquid guide cavity of the cover body and the cover body cylinder wall of the cover body, and the needle core includes a needle column and a needle cap. One end of the column is provided with a needle tip, the other end of the needle column is fixedly sealed in the needle cap, and the inner edge of the needle cap is provided with an inner thread.

The working principle of the invention is as follows: when in use, the needle column of the needle core is placed in the body and penetrates the inner cavity of the puncture needle, the inner cavity of the puncture needle is exposed outside the needle column, and the needle cap is threadedly connected with the external thread provided on the body. , use a puncture needle with a needle core to manually drill into the bone marrow cavity, loosen the threaded connection between the needle cap and the external thread of the body, take out the needle core, and place one end of the body with the groove on the cover barrel of the cover In the wall, press the two hand pressing handles to make the arc-shaped ends of the hand pressing handles engage with the grooves, and then combine the cover body with the main body, the catheter connector is connected with the infusion set, and the three-way connecting tube is connected according to the condition. The side channel is connected with the syringe (or infusion set), and the medicine can be infused repeatedly. The medicine infused by the infusion set connected with the catheter connector is filtered by the catheter, filtered by the filter, and then automatically adjusted by the regulator after flow adjustment. The pipeline enters and flows through the three-way connecting pipe, and finally enters the bone marrow cavity through the drainage cavity of the cover body, the inner cavity of the main body and the inner cavity of the puncture needle in sequence. The drug infused through the lateral channel directly enters the bone marrow cavity through the catheterization cavity of the cover body, the inner cavity of the body and the inner cavity of the puncture needle. After the drug infusion is completed, the two hand pressing handles are pulled up so that the arc-shaped ends of the hand pressing handles are separated from the groove, so that the cover body can be separated from the main body.

The intentional effect of the present invention is: the present invention utilizes the cover body, the catheter and the three-way connecting pipe to connect the bone penetrating needle with the infusion set (or blood transfusion set) through the main pipeline and the catheter connecting head, and the three-way connecting tube can be connected according to the needs of the disease. The side channel of the device is connected with the syringe (or infusion set), and the medicine can be infused repeatedly, and there is no need to disconnect the connection when the medicine is added repeatedly.

Description of drawings

The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

Accompanying drawing 1 is the structural representation of the present invention;

2 is a schematic cross-sectional structural diagram of the combination of the cover body and the main body of the present invention;

FIG. 3 is a schematic cross-sectional structural diagram of the separation of the cover body and the main body of the present invention.

In the figure: 1, puncture needle, 2, support piece, 3, body, 31, groove, 32, external thread, 4, cover body, 41, hand pressing handle, 411, arc end, 42, shaft, 43 , Square hole, 44, Gasket, 45, Cover cylinder wall, 46, Liquid guide cavity, 5, Conduit, 6, Tee connecting pipe, 61, Main pipe, 62, Side hole, 7, Regulator, 8, filter, 9, catheter connector, 10, needle core, 101, needle post, 102, needle cap.

Detailed ways

As shown in the accompanying drawings 1, 2, and 3, a novel bone marrow infusion puncture device of the present invention includes a puncture needle 1, a hand support 2, a body 3, a cover 4, a catheter 5, a three-way connecting pipe 6, a regulator 7, a filter 8, catheter connector 9 and needle core 10.

One end of the main body 3 is provided with an external thread 32 and a groove 31 in turn from left to right, the other end of the main body 3 is provided with a support plate 2 and a puncture needle 1 in sequence, and the inner cavity of the main body 3 and the inner cavity of the puncture needle 1 are arranged in turn. The cover body 4 is symmetrically provided with a pair of holes 43, the bottom of the handle 41 is provided with an arc-shaped end 411, the rotating shaft 42 penetrates the bottom of the handle 41 and the handle 41 is laterally installed on the bottom of the handle 41. In the square hole 43, the conduit 5 provided on the right end of the cover body 4 is connected to the output liquid port of the three-way connecting pipe 6, and the three-way connecting pipe 6 is also provided with a main pipe 81 and a side channel 82 as the input liquid port, and the three-way connecting pipe The main pipe 61 of 6 is connected to the output liquid port of the filter 8 through the pipe 5, the other input liquid port of the filter 8 is connected to the pipe connector 9 through the pipe 5, and the regulator 7 is installed between the main pipe 61 and the filter 8. On the conduit 5, the inner cavity of the three-way connecting pipe 6 is communicated with the inner cavity of the conduit 5, the inner cavity of the conduit 5 is communicated with the filter cavity of the filter 8, and the inner cavity of the conduit 5 is also connected with the liquid conduit of the cover body 4. The cavity 46 is communicated, and a sealing gasket 44 is provided at the junction of the liquid guide cavity 46 of the cover body 4 and the cover body cylinder wall 45 of the cover body 4. The needle core 10 includes a needle post 101 and a needle cap 102. The needle post 101 One end of the needle is provided with a needle tip, the other end of the needle post 101 is fixedly sealed in the needle cap 102, and the inner edge of the needle cap 102 is provided with an internal thread.

In use, the needle column 101 of the needle core 10 is placed in the body 3 and penetrates the inner cavity of the puncture needle 1. The needle column 101 exposes the inner cavity of the puncture needle 1, and the needle cap 102 is threaded with the external thread 32 provided on the body 3. For fixed connection, use the puncture needle 1 with the needle core 10 to manually drill into the bone marrow cavity, loosen the threaded fixed connection between the needle cap 102 and the external thread 32 of the body 3, take out the needle core 10, and set the body 3 with the groove 31. One end of the cover body 4 is placed in the cover body cylinder wall 45 of the cover body 4, and the two hand pressing handles 41 are pressed down to make the arc-shaped ends of the hand pressing handles 41 engage with the grooves 31, and then the cover body 4 and the main body 3 are combined. , the catheter connector 9 is connected with the infusion set, and the side hole 62 of the three-way connecting tube 6 is connected with the syringe (or infusion set) according to the needs of the condition, and the medicine can be repeatedly infused, and the infusion set connected with the catheter connector 9 is infused The injected drug is filtered by the catheter 5 and the filter 8, and then the flow is adjusted by the regulator 7, and then the main pipeline 61 flows through the three-way connecting pipe 6, and finally passes through the liquid guide cavity 46 of the cover body 4 and the main body 3 in sequence. The inner cavity and the inner cavity of the puncture needle 1 enter the marrow cavity. The drug infused through the lateral hole 62 directly enters the bone marrow cavity through the catheter cavity 46 of the cover body 4 , the inner cavity of the main body 3 and the inner cavity of the puncture needle 1 . After the drug infusion is completed, the two hand pressing handles 41 are pulled up to disengage the arcuate ends 411 of the hand pressing handles 41 from the grooves 31 , so that the cover body 4 can be separated from the body 3 .

As mentioned above, the embodiments are only to describe the preferred embodiments of the present invention, and do not limit the scope of the present invention. Such deformations and improvements shall fall within the protection scope determined by the claims of the present invention.

Claims (1)

1. a novel bone marrow infusion puncture device, it is characterized in that: described a kind of novel bone marrow infusion puncture device comprises a puncture needle, a hand support, a body, a cover, a conduit, a three-way connecting pipe, a regulator, a filter, a conduit connector and pin; One end of the body is sequentially provided with external threads and grooves from left to right, and the other end of the body is sequentially provided with a support piece and a puncture needle. The inner cavity of the body is communicated with the inner cavity of the puncture needle. A pair of holes is symmetrically arranged, the bottom of the handle is provided with an arc-shaped end, the rotating shaft runs through the bottom of the handle and the handle is horizontally installed in the square hole, and the conduit on the right end of the cover is connected with a tee connection The output liquid port of the pipe, the three-way connecting pipe is also provided with a main pipeline and a side channel as the input liquid port, the main pipeline of the three-way connecting pipe is connected to the output liquid port of the filter through a conduit, and the other input liquid port of the filter passes through The conduit is connected to the conduit connector, the regulator is installed on the conduit between the main conduit and the filter, the inner cavity of the three-way connecting pipe is communicated with the inner cavity of the conduit, and the inner cavity of the conduit is communicated with the filter cavity of the filter, The inner cavity of the catheter is also communicated with the liquid guide cavity of the cover body, and a sealing gasket is arranged at the junction of the liquid guide cavity of the cover body and the cover body cylinder wall of the cover body, and the needle core includes a needle column and a needle cap. One end of the column is provided with a needle tip, the other end of the needle column is fixedly sealed in the needle cap, and the inner edge of the needle cap is provided with an inner thread.

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