CN212141072U

CN212141072U - Blood collection indwelling needle and blood collection indwelling assembly

Info

Publication number: CN212141072U
Application number: CN202020065817.8U
Authority: CN
Inventors: 毛亚凌; 毛春元
Original assignee: Shanghai Jinta Medical Co ltd
Current assignee: Shanghai Jinta Medical Co ltd
Priority date: 2020-01-13
Filing date: 2020-01-13
Publication date: 2020-12-15
Anticipated expiration: 2030-01-13

Abstract

The utility model discloses a needle is kept somewhere in blood sampling and the sub-assembly is kept somewhere in blood sampling, and the needle is kept somewhere in the blood sampling includes: the inner part of the communicating body is provided with an inner flow passage; the indwelling catheter is communicated with the internal flow passage; the blood sampling connecting end is used for being detachably connected with a blood drainage device; an acupuncture link, acupuncture link and interior runner intercommunication, wherein, acupuncture link is used for dismantling to insert an acupuncture device, and acupuncture device's the needle of keeping somewhere can activate acupuncture device when will keeping somewhere the needle tubing and extract from keeping somewhere the pipe to the protection needle point avoids the acupuncture to hinder. The blood sampling remaining needle is additionally provided with a blood sampling connecting end for connecting a blood drainage device. When blood sampling is carried out, secondary puncture is not needed to be carried out on the patient, the pain of the patient is reduced, and thrombosis caused by blood residue is avoided. Meanwhile, the blood sampling device can pull out the communicating body after blood sampling, and the needle tube without the cutting edge can not cause puncture injury.

Description

Blood collection indwelling needle and blood collection indwelling assembly

Technical Field

The utility model relates to a needle and sub-assembly are kept somewhere in blood sampling.

Background

The vein indwelling needle is an existing common medical appliance. The indwelling catheter of the venous indwelling needle can be left in the human body. When the puncture needle is pulled out, the puncture needle is easy to cause puncture injury to the human body. Simultaneously, in the current blood sampling process, can make blood flow in the medicine piece and the infusion interface on hose upper portion through keeping somewhere the needle blood sampling, lead to in the blood sampling completion back, have more than blood to remain these parts, lead to stifled pipe, the clinical still need carry out the blood sampling of puncturing for the second time usually, has increased the pain of disease.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to keep somewhere the needle in order to overcome among the prior art vein and can not take a blood sample, increases the puncture quantity of disease, and the pjncture needle causes the defect of injury easily, provides a blood sampling and keeps somewhere the needle and the sub-assembly is kept somewhere in the blood sampling.

The utility model discloses an above-mentioned technical problem is solved through following technical scheme:

a blood collection indwelling needle is characterized by comprising:

the communication body is internally provided with an internal flow passage;

an indwelling catheter in communication with the internal flow passage;

the blood sampling connecting end is used for being detachably connected with a blood drainage device;

the blood sampling device comprises an acupuncture connecting end, the acupuncture connecting end is communicated with the internal flow passage, the blood sampling connecting end and the communicating body are integrally formed, the acupuncture connecting end is used for being detachably connected with an acupuncture device, a remaining needle of the acupuncture device is inserted into the remaining catheter, and the remaining needle of the acupuncture device is pushed to cover the remaining needle of the remaining acupuncture device of the acupuncture device when being pulled out from the remaining catheter.

During the use, medical personnel will once only use the blood sampling to keep somewhere the needle and insert human vein blood vessel according to operating procedure, draw out and carry out the blood sampling through the blood sampling link after the acupuncture device, draw out blood drainage device after the blood sampling finishes, use the syringe that has normal saline or other liquid medicines to wash the pipe, connect the transfusion system interface and keep somewhere the needle interface and carry out the venous transfusion, the transfusion system interface of screwing out once more after the venous transfusion finishes to reach and keep somewhere the internal effect of pipe indwelling, and the blood drainage device who extracts can not take place to stab because of sharp needle point and hinder and take place the acupuncture

In the scheme, during initial puncture, the indwelling needle of the acupuncture device is inserted into the indwelling catheter, so that the indwelling catheter can be ensured to enter a human body together with the indwelling needle of the acupuncture device. After the puncture is completed, the acupuncture device is pulled out, and only the indwelling catheter is left in the human body at this time. The indwelling catheter can be made of soft or other materials which are not easy to hurt the human body, and compared with a direct indwelling needle, the indwelling catheter reduces the damage to the human body in the long-term indwelling process.

The blood sampling remaining needle is additionally provided with a blood sampling connecting end for connecting a blood drainage device. At this moment, when taking a blood sample, just need not carry out the secondary puncture to the disease, only need just can accomplish the blood sampling through the blood sampling link. Meanwhile, the blood at the blood sampling connecting end can not further flow out and flow into the infusion tube, so that the thrombosis caused by the residual blood is avoided.

Preferably, the blood sampling connecting end and the acupuncture connecting end are positioned between the same side of the communicating body and the vertical direction. Therefore, the blood sampling connecting end and the acupuncture connecting end are both positioned between the opposite side and the vertical side of the indwelling catheter, so that enough space is provided during blood sampling.

Preferably, the internal flow passage has a first passage and a second passage, the first passage is a three-way passage, wherein the first passage is respectively communicated with the acupuncture connection end, the indwelling catheter and the second passage.

Preferably, the blood sampling connecting end is communicated with the second channel.

Preferably, the communicating body is further connected with a transfusion tube, wherein the transfusion tube is communicated with the second channel.

Preferably, the infusion tube is further connected with a drug adding piece and an infusion interface.

Preferably, the infusion tube is provided with a flow stopping clamp, and the flow stopping clamp is arranged on the infusion tube. During blood collection, the flow stopping clip is closed, and blood is collected by using a blood drainage device, such as a vacuum blood collection tube. And after the blood sampling is finished, the blood drainage device is pulled out to finish the operation.

Preferably, a sealing plug is arranged at a communication position of the blood sampling connecting end and the internal flow passage, and the sealing plug is matched with the inner wall of the internal flow passage smoothly. The sealing plug is matched with the flat sealing plug without dead angles, so that the pipeline is convenient to wash during infusion, and no thrombus is formed.

Preferably, the puncture needle of the blood drainage device passes through the sealing plug and is communicated with the internal flow passage.

Preferably, a sealing plug is arranged at a communication position of the acupuncture connecting end and the internal flow passage, and the sealing plug is matched with the inner wall of the internal flow passage smoothly. The sealing plug is matched with the flat sealing plug without dead angles, so that the pipeline is convenient to wash during infusion, and no thrombus is formed.

Preferably, the indwelling needle of the acupuncture device is inserted into the inside of the indwelling catheter through the sealing plug and the internal flow passage in this order.

Preferably, the blood sampling connecting end is a columnar structure protruding out of the communicating body, a connecting bump is arranged on the surface of the blood sampling connecting end, a bent groove is formed in an interface of the blood drainage device, and the connecting bump is matched with the bent groove to realize connection and detachment of the blood sampling connecting end and the blood drainage device.

Preferably, the blood sampling connecting end is of a threaded structure, connecting threads are arranged on the surface of the blood sampling connecting end, a thread groove is formed in a connector of the blood drainage device, and the connecting threads are matched with the thread groove to realize connection and detachment of the blood sampling connecting end and the blood drainage device.

Preferably, the tail part of the needle tube of the puncture needle facing the second channel of the blood drainage device is a round flat-mouth polished needle tube.

Preferably, the blood sampling connecting end is a columnar structure protruding out of the communicating body, a connecting convex block is arranged on the surface of the blood sampling connecting end, a thread is arranged on the interface of the blood drainage device, and the connecting convex block is matched with the thread to realize connection and detachment of the blood sampling connecting end and the blood drainage device.

Preferably, the indwelling catheter extends partially within the communicating body and has a smaller bore than the internal flow passage.

Preferably, the acupuncture device is provided with a telescopic sheath which is used for covering an indwelling needle of the acupuncture device. When the disposable anti-acupuncture blood-sampling remaining needle is inserted into a human body, the acupuncture device is pulled out, the needle point of the puncture needle is hidden after the multi-section protective sleeve is slid, the exposure of the needle point of the puncture needle is avoided, and the effect of preventing the puncture wound is achieved.

The blood sampling indwelling assembly is characterized by comprising a needle puncturing device, a blood drainage device and the blood sampling indwelling needle.

An operation method, which is realized by using the blood collecting indwelling needle, and comprises the following steps:

step S1, inserting an indwelling catheter into which an indwelling needle of the acupuncture device is inserted;

step S2, pulling out the indwelling needle tube and simultaneously activating the acupuncture device;

step S3, connecting the blood drainage device to the blood sampling connecting end for sampling blood;

and S4, removing the blood drainage device after the blood collection is finished.

Preferably, the step S3 specifically includes: and closing the flow stopping clamp on the infusion tube, and connecting the blood drainage device to the blood sampling connecting end for sampling blood.

Preferably, step S5 is further included after step S4, and step S5: and (5) connecting the infusion apparatus, and opening the flow stopping clamp to flush the tube for infusion.

Preferably, the acupuncture device has a retractable sheath, and step S2 is specifically: and pulling out the acupuncture device, and pulling out the sheath to cover the remaining needle of the acupuncture device.

The utility model discloses an actively advance the effect and lie in: the remaining needle tube of the utility model can activate the acupuncture device when being pulled out, thereby avoiding the occurrence of acupuncture injury. The blood sampling remaining needle is additionally provided with a blood sampling connecting end for connecting a blood drainage device. When blood sampling is carried out, secondary puncture is not needed to be carried out on the patient, the pain of the patient is reduced, and thrombosis caused by blood residue is avoided.

Drawings

Fig. 1 is a schematic perspective view of a blood collection indwelling needle and a blood collection indwelling assembly according to a preferred embodiment of the present invention.

Fig. 2 is a schematic view of a partial cross-sectional structure of the blood collection indwelling needle and the blood collection indwelling assembly according to the preferred embodiment of the present invention.

Fig. 3 is a schematic cross-sectional view of a communication body according to a preferred embodiment of the present invention.

Fig. 4 is a schematic perspective view of a communication body according to a preferred embodiment of the present invention.

Fig. 5 is a schematic view of a connection structure of the blood sampling connection end according to a preferred embodiment of the present invention.

Fig. 6 is a flowchart of the operation method of the preferred embodiment of the present invention.

Fig. 7 is a schematic perspective view of a communication body according to another preferred embodiment of the present invention.

Fig. 8 is a schematic view of a partial cross-sectional structure of a blood collection indwelling needle and a blood collection indwelling assembly according to another preferred embodiment of the present invention.

Detailed Description

The present invention is further illustrated by way of the following examples, which are not intended to limit the scope of the invention.

As shown in fig. 1 to 5, the present embodiment discloses a blood collection indwelling needle in which a blood collection indwelling assembly includes a needle puncturing device 2, a blood drainage device 3, and a blood collection indwelling needle. The blood sampling indwelling needle comprises a communicating body 10, an indwelling catheter 11, a blood sampling connecting end 13, a needle puncture connecting end 12, a flow stopping clamp 5, an infusion tube 4, a medicine adding piece 6 and an infusion interface 7.

As shown in fig. 1, 3 and 4, the blood collection indwelling needle of the present embodiment includes a communicating body 10, and an internal flow passage 14 is provided inside the communicating body 10. The communication body 10 may be produced in an integral manufacture or by other known processing methods.

As shown in FIGS. 1 and 2, the blood collection indwelling needle of the present embodiment includes an indwelling catheter 11, and the indwelling catheter 11 communicates with an internal flow passage 14. The indwelling catheter 11 may be connected directly to the communicating body 10 or to the communicating body 10 by means of another adapter.

As shown in fig. 1, 3 and 4, the blood collection indwelling needle of the present embodiment includes a blood collection connecting end 13, and the blood collection connecting end 13 is used for detachably connecting a blood drainage device 3. The blood drainage device 3 may be any existing blood collection and drainage product, such as an evacuated blood collection tube or the like.

As shown in fig. 1, fig. 3 and fig. 4, the blood collecting indwelling needle of the present embodiment includes a needle insertion connecting end 12, a blood collection connecting end 13, a needle insertion connecting end 12 and a communicating body 10 integrally formed, the needle insertion connecting end 12 is communicated with an internal flow passage 14, wherein the needle insertion connecting end 12 is used for detachably connecting a needle insertion device 2, and a indwelling needle 21 of the needle insertion device 2 is inserted into the indwelling catheter 11 through the internal flow passage 14. When the indwelling needle 21 of the acupuncture device 2 is pulled out of the indwelling catheter 11, the sheath 22 of the acupuncture device 21 is pushed to shield the indwelling needle 21 of the acupuncture device 2. The lancing device 2 can be any conventional lancing device 2 having a sheath 21. When in use, the utility model is pulled out.

When the disposable blood taking indwelling needle is used, a medical worker inserts the disposable blood taking indwelling needle into a human vein according to the operation steps, blood taking is performed after the acupuncture device 2 is pulled out, the blood drainage device 3 is pulled out after the blood taking is finished, the infusion set interface is connected into the indwelling needle interface for venous infusion, and the infusion set interface is screwed out again after the venous infusion is finished so as to achieve the effect that the indwelling tube is kept in the body.

In this embodiment, during the initial puncture, since the indwelling needle of the acupuncture device 2 is inserted into the indwelling catheter 11, it is ensured that the indwelling catheter 11 can enter the human body together with the indwelling needle of the acupuncture device 2. After the completion of the puncture, the acupuncture device 2 is pulled out, and only the indwelling catheter 11 is left in the human body at this time. The indwelling catheter 11 itself can be made of soft or other materials that are not harmful to the human body, and during long-term indwelling, the indwelling catheter 11 reduces the harm to the human body compared to a direct indwelling needle.

The blood sampling remaining needle is additionally provided with a blood sampling connecting end 13 for connecting the blood drainage device 3. At this time, when blood sampling is performed, secondary puncture is not required to be performed on a patient, and blood sampling can be completed only through the blood sampling connecting end 13. Meanwhile, the blood at the blood sampling connecting end 13 can not further flow out and flow into the infusion tube 4, so that the thrombosis caused by the residual blood is avoided.

As shown in fig. 1 and 2, the blood collection connection end 13 and the needle puncture connection end 12 of the present embodiment are located on the same side of the communication body 10. This means that the blood collection connection end 13 and the needle puncture connection end 12 are both located on the opposite side of the indwelling catheter 11, thereby allowing a sufficient space for blood collection. Of course, in other embodiments, different location settings may be used.

As shown in fig. 3, the internal flow channel 14 of the present embodiment has a first channel 141 and a second channel 142, the first channel 141 is a three-way channel, wherein the first channel 141 is respectively communicated with the acupuncture connection end 12, the indwelling catheter 11 and the second channel 142. The first and

second channels

141 and 142 thus form a T-shape therebetween.

As shown in fig. 2 and 3, the blood collection connection end 13 of the present embodiment communicates with the second channel 142. Wherein, the blood sampling connecting end 13 is located at one side of the second channel 142, forming an included angle of 90 degrees, and in other embodiments, different included angles may be set.

As shown in fig. 2 and 3, the communicating body 10 of the present embodiment is further connected to an infusion tube 4, wherein the infusion tube 4 communicates with the second passage 142. The infusion tube 4 of the present embodiment is inserted in the extending direction of the second channel 142, thereby achieving communication between the infusion tube 4 and the communication body 10.

As shown in fig. 1, the infusion tube 4 of the present embodiment is further connected to a drug adding device 6 and an infusion port 7. The medicine adding part 6 and the infusion interface 7 are conventional infusion devices, and the normal use of the embodiment cannot be influenced by the change of different structures.

As shown in fig. 1, the infusion tube 4 of the present embodiment is provided with a flow stop clip 5, and the infusion tube 4 is fitted with the flow stop clip 5. At the time of blood collection, the flow stop clip 5 is closed, and blood is collected using the blood drainage device 3, for example, a vacuum blood collection tube. After the blood sampling is finished, the blood drainage device 3 is pulled out to finish the operation.

As shown in fig. 2, a sealing plug 82 is disposed at a communication position between the blood sampling connection end 13 and the internal flow passage 14, and the sealing plug 82 is smoothly matched with the inner wall of the internal flow passage 14. The sealing plug 82 is smooth in matching without dead angles, so that the pipeline is convenient to flush during infusion, and no thrombus is formed.

As shown in fig. 2, the puncture needle 31 of the blood drainage device 3 in this embodiment passes through the sealing plug and communicates with the internal flow path 14. The tail of the needle tube of the puncture needle 31 is a circular flat opening, that is, the side of the puncture needle 31 inserted into the internal flow passage 14 is a circular flat opening, when the blood drainage device 3 is pulled out, the tail of the needle tube of the puncture needle 31 is pulled out, and the circular flat opening can reduce the injury to the human body, thereby achieving the effect of preventing the puncture injury.

As shown in fig. 2, a sealing plug 81 is disposed at the connection position between the needle-punched connection end 12 and the internal flow passage 14, and the sealing plug is smoothly fitted with the inner wall of the internal flow passage 14. The sealing plug 81 is matched with the flat and flat structure without dead angle, so that the pipeline is convenient to flush during transfusion, and no thrombus is formed.

In this embodiment, as shown in fig. 2, the indwelling needle 21 of the acupuncture device 2 is inserted into the indwelling catheter 11 through the sealing plug 81 and the internal flow passage 14 in this order. One end of the puncture needle 21 is exposed to the outside through the indwelling catheter 11.

As shown in fig. 4 and 5, the blood sampling connection end 13 of the present embodiment is a columnar structure protruding from the communication body 10, a connection bump 131 is disposed on the surface of the blood sampling connection end 13, a curved groove 32 is disposed on the interface of the blood drainage device 3, and the connection bump 131 is matched with the curved groove 32 to connect and disconnect the blood sampling connection end 13 and the blood drainage device 3.

As shown in FIG. 2, in the present embodiment, the indwelling catheter 11 extends partially within the communicating body 10, and the indwelling catheter 11 has a smaller bore diameter than the internal flow passage 14.

In this embodiment, the acupuncture device 2 may have a retractable sheath 22, and the sheath 22 is used to cover the indwelling needle 21 of the acupuncture device 2. When the disposable anti-acupuncture blood-sampling indwelling needle is inserted into a human body, one end of the needle-insertion-preventing indwelling needle is pulled out of the rear end of the acupuncture device 2, and the other end of the needle-insertion-preventing indwelling needle holds the sheath 22, so that the one-section or multi-section sheath 22 is pushed out relative to the acupuncture device 2, thereby achieving the effects of hiding the needle point of the indwelling needle 21, avoiding the exposure of the needle point of the puncture needle and preventing the puncture wound.

As shown in fig. 6, the present embodiment further discloses an operation method, which is implemented by using the aforementioned blood collection indwelling needle, and the operation method includes:

step S1, inserting an indwelling catheter 11 into which an indwelling needle of the acupuncture device 2 is inserted;

step S2, pulling out the acupuncture device 2;

step S3, connecting the blood drainage device 3 to the blood sampling connecting end 13 for sampling blood;

and step S4, removing the blood drainage device 3 after the blood collection is finished.

Wherein, step S3 specifically includes: the flow stopping clamp 5 on the infusion tube 4 is closed, and the blood drainage device 3 is connected to the blood sampling connecting end 13 for blood sampling.

Step S5 is further included after step S4, and step S5: and (5) connecting the infusion apparatus, and opening the flow stopping clamp 5 to flush the tube for infusion.

Wherein, the acupuncture device 2 has a retractable sheath, and the step S2 is specifically: the acupuncture device 2 is pulled out, and the sheath is pulled out to cover the remaining needle of the acupuncture device 2.

As shown in fig. 7 and 8, in another preferred embodiment of the present invention, the blood sampling connecting end 13 is a columnar structure protruding from the communicating body 10, the surface of the blood sampling connecting end 13 is provided with a connecting protrusion 132, the interface of the blood drainage device 3 is provided with a thread 33, and the connecting protrusion 132 is matched with the thread 33 to connect and disconnect the blood sampling connecting end 13 and the blood drainage device 3.

The indwelling catheter of the utility model has the advantages that the indwelling catheter has reduced harm to human body compared with the direct indwelling needle in the long-term indwelling process. The blood sampling remaining needle is additionally provided with a blood sampling connecting end for connecting a blood drainage device. When blood sampling is carried out, secondary puncture is not needed to be carried out on the patient, the pain of the patient is reduced, and thrombosis caused by blood residue is avoided.

Although specific embodiments of the present invention have been described above, it will be understood by those skilled in the art that this is by way of example only and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and the principles of the present invention, and these changes and modifications are all within the scope of the present invention.

Claims

1. A blood collection indwelling needle, comprising:

the communication body is internally provided with an internal flow passage;

an indwelling catheter in communication with the internal flow passage;

the blood sampling device comprises a needle puncture connecting end, the needle puncture connecting end is communicated with the internal flow passage, the blood sampling connecting end and the communicating body are integrally formed, the needle puncture connecting end is used for detachably connecting a needle puncture device, a remaining needle of the needle puncture device is inserted into the remaining catheter, and the remaining needle of the needle puncture device is pushed to cover the remaining needle of the needle puncture device when being pulled out of the remaining catheter.

2. The blood collection indwelling needle according to claim 1, wherein the blood collection connecting end and the needle puncture connecting end are located between the same side of the communicating body and a vertical direction.

3. The blood collection indwelling needle according to claim 1, wherein the internal flow passage has a first passage and a second passage, the first passage being a three-way passage, wherein the first passage communicates with the needle puncture connecting end, the indwelling catheter and the second passage, respectively.

4. The blood collection indwelling needle according to claim 3, wherein the blood collection connecting end communicates with the second passage.

5. The blood collection indwelling needle according to claim 3, wherein the communicating body is further connected to a liquid transport tube, wherein the liquid transport tube communicates with the second passage.

6. The blood collection indwelling needle according to claim 5, wherein the infusion tube is further connected with a drug adding piece and an infusion port.

7. The blood collection indwelling needle according to claim 6, wherein the infusion tube is provided with a flow stopping clip, and the flow stopping clip is provided on the infusion tube.

8. The blood collection indwelling needle according to claim 1, wherein a sealing plug is provided at a communication part of the blood collection connecting end and the internal flow passage, and the sealing plug is smoothly fitted with the inner wall of the internal flow passage.

9. The blood collection indwelling needle of claim 8, wherein the puncture needle of the blood drainage device passes through the sealing plug and communicates with the internal flow passage.

10. The blood collection indwelling needle according to claim 1, wherein a sealing plug is provided at a communication part of the needle puncture connecting end and the internal flow passage, and the sealing plug is smoothly fitted with the inner wall of the internal flow passage.

11. The blood collection indwelling needle according to claim 10, wherein the indwelling needle of the acupuncture device is inserted inside the indwelling catheter through the sealing plug and the internal flow passage in this order.

12. The blood sampling indwelling needle according to claim 1, wherein the blood sampling connection end is a columnar structure protruding from the communicating body, a connection bump is provided on the surface of the blood sampling connection end, a curved groove is provided on the interface of the blood drainage device, and the connection bump and the curved groove are matched to realize connection and detachment of the blood sampling connection end and the blood drainage device.

13. The blood collecting indwelling needle according to claim 1, wherein the blood collecting connecting end is of a threaded structure, a connecting thread is arranged on the surface of the blood collecting connecting end, a threaded groove is arranged in the interface of the blood drainage device, and the connecting thread is matched with the threaded groove so as to realize connection and detachment of the blood collecting connecting end and the blood drainage device.

14. The blood collection indwelling needle according to claim 9, wherein the needle tube end of the puncture needle of the blood drainage device facing the second channel is a circular flat mouth.

15. The blood collection indwelling needle according to claim 1, wherein the blood collection connecting end is a columnar structure protruding from the communicating body, a connecting protrusion is arranged on the surface of the blood collection connecting end, a thread is arranged on the interface of the blood drainage device, and the connecting protrusion is matched with the thread to connect and disconnect the blood collection connecting end and the blood drainage device.

16. The blood collection indwelling needle according to claim 1, wherein the indwelling catheter extends partially within the communicating body, and the indwelling catheter has a smaller bore diameter than the internal flow passage.

17. The blood collection indwelling needle according to claim 1, wherein the puncturing device has a retractable sheath for covering an indwelling needle of the puncturing device.

18. A blood collection indwelling assembly comprising a needle puncturing device, a blood drainage device and a blood collection indwelling needle according to any one of claims 1 to 17.