CN211512939U

CN211512939U - Multifunctional vein needle

Info

Publication number: CN211512939U
Application number: CN201921882639.1U
Authority: CN
Inventors: 卢金云; 刘学霞
Original assignee: Anhui Hongyu Wuzhou Medical Manufacturer Co ltd
Current assignee: Anhui Hongyu Wuzhou Medical Manufacturer Co ltd
Priority date: 2019-11-04
Filing date: 2019-11-04
Publication date: 2020-09-18
Anticipated expiration: 2029-11-04

Abstract

The utility model relates to the field of medical equipment, in particular to a multifunctional venous needle, which comprises a connector connected with an injector, a hose and a puncture needle piece, wherein the hose is communicated with a filtering part, the filtering part comprises a filtering hopper, a filtering hopper cover and a filtering membrane, the filtering hopper is in a hollow column shape, one end of the filtering hopper is an opening, the filtering hopper cover can cover the opening of the filtering hopper, and the filtering membrane is positioned in the filtering hopper; the filtering part divides the hose into a first hose and a second hose, one end of the first hose is communicated with the joint, and the other end of the first hose is communicated with the filtering hopper through the filtering hopper cover; one end of the second hose is communicated with the filter hopper, and the other end of the second hose is communicated with the puncture needle piece. The utility model discloses do not have special filter equipment's problem when being directed at a small amount or micro-transfusion, set up the filter house in multi-functional vein needle, be equipped with filtration membrane in the filter house, blood passes through filtration membrane's filtration, has completely cut off most impurity and blood micropolymer and has got into the human body, has guaranteed patient's safety, and the device simple structure easily operates simultaneously, makes things convenient for medical personnel to use.

Description

Multifunctional vein needle

Technical Field

The utility model relates to the field of medical equipment, in particular to multifunctional venous needle.

Background

Blood transfusion is a widely used treatment in clinical treatment, in which blood is filtered of impurities and blood clots before being infused into a human body. In the case of a single-use mass transfusion, a medical staff may use a dedicated transfusion device to filter blood, but there has been no suitable transfusion device in the case where only a small or minute amount of blood transfusion is required, such as in the case of treating a deficiency in blood volume of an infant or an anemia disease, or in the case of direct transfusion (blood of a donor is immediately taken out and then transfused to a patient). Typically, a health care provider will use a syringe to draw blood from a blood bag through a needle, then cut the existing blood transfusion set from the upper end of the filter, attach the syringe to the cut end with the blood transfusion filter, place the syringe on a micro syringe pump, and finally pass the blood through a venous needle into the body.

The self-made equipment can be used for filtering a small amount of or trace amount of input blood, but the syringe and the blood transfusion device are temporarily inserted and connected, so that the syringe and the blood transfusion device are easy to fall off, and the normal operation of blood transfusion is not facilitated. Particularly, in emergency situations, when direct blood transfusion is needed, medical staff can spend a lot of time and delay the treatment time of patients if modifying the existing equipment, but if the medical staff directly uses the syringe for transfusion and does not perform filtering, the blood transfusion effect of the patients can be influenced or adverse reactions can be generated.

SUMMERY OF THE UTILITY MODEL

The utility model provides a convenient to use and can carry out filterable multi-functional vein needle of blood to the problem that does not have special blood transfusion filter equipment when a small amount or micro-transfusion.

The multifunctional intravenous needle comprises a connector connected with an injector, a hose and a puncture needle piece, wherein the hose is communicated with a filtering part, the filtering part comprises a filtering hopper, a filtering hopper cover and a filtering membrane, the filtering hopper is hollow and columnar, one end of the filtering hopper cover is provided with an opening, the filtering hopper cover is fastened and covers the opening of the filtering hopper, and the filtering membrane is positioned in the filtering hopper;

the filtering part divides the hose into a first hose and a second hose, one end of the first hose is communicated with the joint, and the other end of the first hose is communicated with the filtering hopper through the filtering hopper cover;

one end of the second hose is communicated with the filter hopper, and the other end of the second hose is communicated with the puncture needle piece.

Further, the joint is provided with an external thread in threaded connection with the screw injector.

Further, still include with joint visor of detachable connection.

Furthermore, a branch hose is arranged on the first hose, and the tail end of the branch hose is communicated with a branch joint.

Furthermore, the communication position of the first hose and the end face of the filter hopper cover is a first communication position, the communication position of the second hose and the end face of the filter hopper is a second communication position, and the first communication position and the second communication position are aligned and are eccentrically arranged on the corresponding end faces.

The filter funnel stabilizing sleeve comprises a bending part which is attached to the filter funnel in a crossing mode along the radial direction, stabilizing wings extend outwards from two sides of the bending part, and the vertical distance between the bottom surface of each stabilizing wing and the vertex of the concave side on the bending part is basically equal to the diameter of the filter funnel.

Furthermore, the bottom surfaces of the stabilizing wings are positioned on the same cambered surface.

Further, the puncture needle spare includes pjncture needle, pjncture needle protective sheath, needle file and needle wing, the needle file parcel is lived the non-puncture end of pjncture needle, pjncture needle protective sheath in close fit in on the needle file, the parcel is lived the puncture end of pjncture needle, the second hose cover in on the needle file with the pjncture needle intercommunication, one side shaping of needle file has the needle wing.

The utility model discloses do not have dedicated blood transfusion filter equipment's problem when to a small amount or micro-transfusion, set up the filter house in multi-functional vein needle, be equipped with filtration membrane in the filter house. Blood gets into multi-functional vein needle, through filtration membrane's filtration, has isolated most impurity in the blood and blood micropolymer and has got into the human body, has avoided the emergence of adverse reactions such as vascular embolism, has guaranteed patient's safety, just the utility model is simple in operation, need not to cut operations such as transformation, directly with the syringe with the utility model discloses the intercommunication can, make things convenient for medical personnel to use.

Drawings

Fig. 1 is a schematic structural view of a multifunctional intravenous needle provided in a first embodiment of the present invention;

fig. 2 is a schematic view illustrating the use of the multifunctional intravenous needle provided in the first embodiment of the present invention;

fig. 3 is a schematic diagram of a branch structure of a multifunctional venous needle provided in the second embodiment of the present invention;

FIG. 4 is a right side view of a filter unit covered with a filter funnel stabilizing sleeve according to a third embodiment of the present invention;

fig. 5 is a top view of the filter portion of fig. 4 with a filter funnel stabilizing sleeve.

The reference numerals include: the puncture needle device 1, the hose 2, the joint 3, the filter part 4, the joint protective cover 5, the filter funnel stabilizing sleeve 6, the first hose 21, the second hose 22, the filter funnel 41, the filter funnel cover 42, the filter membrane 43, the branch joint 31, the branch hose 211, the filter funnel connecting pipe 411 and the filter funnel cover connecting pipe 421.

Detailed Description

The first embodiment is as follows:

the embodiment provides a multifunctional intravenous needle, as shown in fig. 1, which comprises a puncture needle member 1, a hose 2, a connector 3 connected with an injector and a filter part 4, wherein the whole device is produced by adopting medical polyvinyl chloride, and the length of the device can be prolonged or shortened during production according to actual use scenes.

The filter part 4 includes a filter hopper 41, a filter hopper cover 42 and a filter membrane 43, the filter hopper 41 is a hollow cylinder, one end is an opening, the center of the other end extends out of a filter hopper connecting pipe 411, and the filter hopper connecting pipe 411 and the filter hopper 41 can be integrally produced by an injection molding process. The external diameter of filter hopper connecting pipe 411 slightly is less than hose 2 diameter to filter hopper connecting pipe 411 can insert in hose 2 and paste in hose 2 inner wall, can adopt sticky or welded mode when filter hopper connecting pipe 411 is connected with the hose. Preferably, the filter hopper connection pipe 411 has an outer diameter gradually reduced toward a distal end, facilitating assembly with the hose 2 at the time of production.

The filtering hopper cover 42 is a hollow cylinder with a diameter slightly larger than that of the filtering hopper 41, one end of the filtering hopper cover is an opening, a filtering hopper cover connecting pipe 421 extends out of the center of one end of the filtering hopper cover, and the filtering hopper cover connecting pipe 421 and the filtering hopper cover 42 can be integrally produced through an injection molding process. The filter cover 42 is connected to the opening of the filter funnel 41 at one end of the opening, and is adhered to the filter funnel 41, and the filter cover 42 and the filter funnel 41 are generally adhered by glue.

The filter membrane 43 is a hemofilter membrane, is disposed in the filter funnel 41, and has a filtration pore diameter of 160 μm, and can effectively filter impurities and micro-polymers in blood.

The filter part 4 divides the hose 2 into a first hose 21 and a second hose 22, one end of the first hose 21 is connected to the filter cover 42, the first hose 21 is sleeved on the filter cover connecting pipe 421 of the filter cover 42 and abuts against the outer wall of the filter cover 42, and the other end of the first hose 21 is inserted into the joint 3 and is connected by adhesive. The other end of the joint can be inserted by a syringe nipple, the operation specification should be emphasized when the joint is inserted, and the syringe nipple is vertically inserted and screwed clockwise to be tightened. Preferably, the adapter 3 is provided with an external thread (not shown) to be threadedly coupled with the screw syringe so that the adapter 3 can be threadedly coupled with the screw syringe, and the adapter 3 can be more tightly coupled with the syringe to prevent the syringe from being separated from the multifunctional intravenous needle.

One end of the second hose 22 is connected with the puncture needle component 1, the puncture needle component 1 comprises a puncture needle, a puncture needle protective sleeve, a needle seat and a needle wing, the needle seat wraps the non-puncture end of the puncture needle, the puncture needle protective sleeve is tightly matched on the needle seat to wrap the puncture end of the puncture needle, the second hose 22 is sleeved on the needle seat and communicated with the puncture needle to form a liquid path, and the needle wing is formed on one side of the needle seat. The needle wing increases the needle holding part of the medical staff, and the medical staff can conveniently carry out the venipuncture operation. The other end of the second hose 22 is connected to the filter basket 41, and the first hose 21 is fitted over the basket connection pipe 411 of the filter basket 41 and abuts against the outer wall of the filter basket 41.

As shown in fig. 1, the connector 3 is covered with a detachable connector protection cover 5. The connector protective cover 5 is cylindrical, one end of the connector protective cover is provided with an opening, the opening can be fitted on the connector 3, when the connector 3 is not used, the connector protective cover 5 is fitted on the connector 3, and air or external pollution to the connector 3 can be isolated. The connector 3 and the connector protection cover 5 may be connected by a snap connection or a screw connection, and in this embodiment, the snap connection is adopted. The outer wall of the joint protective cover 5 is provided with vertical stripes, so that friction is increased, and medical personnel can conveniently separate the joint protective cover from the joint.

The working process of the embodiment is as follows: as shown in fig. 2, the medical staff unpacks the individual package, pulls out the joint protective cover, inserts the syringe that has extracted the normal saline, exhausts the air in the device, then use the pjncture needle to pierce the vein and fix, then insert the syringe that has extracted a fixed amount of blood into the joint, directly manually push or place on the micro syringe pump and carry out the blood transfusion, blood gets into the filter house through first hose, through filtration membrane, most impurity and blood micropolymer have been filtered, finally through the second hose, through the intravenous needle input human body.

Example two:

as shown in fig. 3, the present embodiment is different from the previous embodiment in that a branch hose 211 is disposed on the first hose 21, a branch joint 31 is communicated with the end of the branch hose 211, and a detachable branch joint protection cover covers the branch joint 31. During blood transfusion, normal saline is used to exhaust air in the tube, then blood is infused, and finally normal saline is used to wash the tube. The arrangement of the branch hose is adopted, so that the operation of replacing the syringe by medical personnel is omitted, the operation is more convenient and efficient, and the medical personnel can conveniently carry out blood transfusion operation.

Example three:

as shown in fig. 4, in the present embodiment, a filter unit design different from the first two embodiments is proposed, in which a filter cover connection pipe 421 is formed at a position where the end surface of the filter cover 42 is close to the edge, and a filter bucket connection pipe 411 is formed at a position where the end surface of the filter bucket 41 is close to the edge. When the filter bowl cover 42 is mounted to the filter bowl 41, the filter bowl cover connection pipe 421 is aligned with the filter bowl connection pipe 411. Through foretell setting for when the blood transfusion, medical personnel can press close to the hand with filtering fill connecting pipe 411 and fix, reduced the difference in height that filters fill lid connecting pipe 421 and filtering fill connecting pipe 411 and hand, avoided the bending of first hose and the consequently formation of second hose, guaranteed the circulation of blood transfusion. It should be noted that when the filter portion is assembled with the second hose 22 and the piercing needle, care should be taken to match the orientation of the needle wings with the location of the connecting tube of the filter funnel to avoid twisting of the second hose 22.

In addition, as shown in fig. 5, the multifunctional venous needle further comprises a filter funnel fixing sleeve 6 capable of pressing the filter part 4 on the body of the user, the filter funnel fixing sleeve 6 comprises a bending part which radially crosses and is attached to the filter funnel 41, two sides of the bending part extend outwards to form fixing wings, the vertical distance from the bottom surface of each fixing wing to the vertex of the concave side on the bending part is basically equal to the diameter of the filter funnel 41, and the vertical distance from the bottom surface of each fixing wing to the vertex of the concave side on the bending part is basically equal to the diameter of the filter funnel, wherein the vertical distance is within plus or minus 0.5 mm.

As shown in the figure, when the filter funnel fixing sleeve 6 is sleeved on the filter funnel 41, the concave surface of the curved portion is matched with the outer peripheral surface of the filter funnel 41, but the filter funnel 41 is not completely wrapped; in other words, the concave surface of the curved portion is an incomplete cylindrical surface, and in this embodiment, the radian that the "cylindrical surface" passes through is greater than 180 degrees, so that a pair of "protrusions" whose distance is smaller than the diameter of the filter funnel 41 is formed on the left and right sides of the filter funnel 41, so that when the filter funnel fixing sleeve 6 is sleeved on the filter funnel 41, the filter funnel fixing sleeve 6 can be clamped on the filter funnel 41, and the two are not easy to separate.

Because most parts of the human body are not flat, especially the parts contacted with the filtering part during transfusion, the stabilizing wings can be better attached to the epidermis of a patient. The bottom surfaces of the two stabilizing wings are arranged into cambered surfaces with the same radius, and the bottom surfaces of the two stabilizing wings are positioned on the same cambered surface, so that the stabilizing wings are more easily matched with the outer contour of a human body, and the stabilizing wings are more tightly attached to the epidermis of a patient. The filter funnel stabilizing sleeve 6 is made of silica gel, the silica gel is easy to deform under the action of external force, the filter funnel stabilizing sleeve 6 is sleeved on the filter funnel 41 by medical personnel conveniently, and meanwhile, the silica gel is soft and is not easy to cause injury to human bodies.

In the use of multi-functional vein needle, medical personnel are in order to prevent to run the needle, often use medical sticky tape to fix pjncture needle and coupling part, because the whole weight of filter house 4 is heavier, its removal easily drives hose or pjncture needle and removes together, consequently filter house 4 also need fix, but because filter house 4 is cylindrical, when using medical sticky tape to fix, filter house 4 is cylindrical, and medical adhesive tape can not be with filter house 4 all fixes on patient's limbs, and is very unstable, easily produces the removal. Use and filter and fight firm cover 6 cover on filter house 4, the bottom surface contact patient skin of firm wing, then use medical adhesive tape to fix filter house 4 and filter and fight firm cover 6 on the patient's epidermis jointly, because medical adhesive tape and filter and fight firm cover 6 between can closely laminate, can effectually fix filter house 4 on the patient's epidermis, prevent that the pjncture needle from running the needle, avoid causing patient local swelling, blue and purple.

The above embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention in any form, and any simple modifications, equivalent changes and modifications made by the technical spirit of the present invention to the above embodiments are all within the scope of the technical solution of the present invention.

Claims

1. The multifunctional intravenous needle comprises a connector connected with an injector, a hose and a puncture needle piece, and is characterized in that the hose is communicated with a filtering part, the filtering part comprises a filtering hopper, a filtering hopper cover and a filtering membrane, the filtering hopper is hollow and cylindrical, one end of the filtering hopper is provided with an opening, the filtering hopper cover is fastened and covers the opening of the filtering hopper, and the filtering membrane is positioned in the filtering hopper;

2. A multi-functional intravenous needle as defined in claim 1, wherein said adapter is provided with an external thread to be threadedly coupled with a screw-type syringe.

3. The multi-functional intravenous needle of claim 1, further comprising a connector protective cover removably connected to said connector.

4. The multifunctional intravenous needle as claimed in claim 1, wherein a branch hose is provided on the first hose, and a branch joint is connected to the end of the branch hose.

5. The multi-functional intravenous needle of claim 1, wherein the first flexible tube communicates with the end surface of the filter funnel cover at a first communication point, the second flexible tube communicates with the end surface of the filter funnel at a second communication point, and the first communication point and the second communication point are eccentrically arranged on the corresponding end surfaces and are aligned with each other.

6. A multi-functional intravenous needle as defined in claim 1, further comprising a filter funnel securing sleeve for pressing the filter portion against the body of the user, said filter funnel securing sleeve comprising a curved portion extending across the filter funnel in a radial direction, securing wings extending outwardly from both sides of the curved portion, wherein a vertical distance from a bottom surface of the securing wings to an apex of a concave side of the curved portion is substantially equal to a diameter of the filter funnel.

7. The multifunctional intravenous needle as claimed in claim 6, wherein the bottom surfaces of the stabilizing wings at both sides are arc surfaces with the same radius, and the bottom surfaces of the stabilizing wings at both sides are on the same arc surface.

8. The multifunctional intravenous needle as claimed in claim 1, wherein the puncture needle member comprises a puncture needle, a puncture needle protecting sleeve, a needle seat and a needle wing, the needle seat wraps the non-puncture end of the puncture needle, the puncture needle protecting sleeve is tightly fitted on the needle seat to wrap the puncture end of the puncture needle, the second hose sleeve is arranged on the needle seat and communicated with the puncture needle, and the needle wing is formed on one side of the needle seat.