CN213347213U - Double-end remaining needle - Google Patents

Abstract

The utility model discloses a needle is kept somewhere to double-end, including pipe seat and transfer line, the plastic cement has the third limiting plate on the transfer line, and the sealed grafting of one end of pipe seat has the pipe, and the pipe seat switches on the plastic cement along the one end that is close to the pipe in proper order and has support device and pipe seat extension arm, and it is fixed with first limiting plate still to glue the plastic cement on the pipe seat. The utility model discloses in, through the design of spacing seat, it can extrude the extension pipe to have reduced the patient when the activity, the security of needle is kept somewhere to the double-end has been improved, design through support device, make to rotate the operation piece and push intravascular dilation with support guide bar and vascular support, certain stability has been played to intravascular blood circulation, through the design of limiting plate, it can keep somewhere the needle to the double-end and carry out certain activity displacement to have reduced the patient when the activity, certain cushioning effect has been increased, the security that the needle was kept somewhere to the double-end has further been improved.

Description

Double-end remaining needle

Technical Field

The utility model relates to the technical field of medical treatment, especially, relate to a needle is kept somewhere to double-end.

Background

The use of the indwelling needle can reduce the pain of the sick children caused by repeated venipuncture and the fear of needle injection, alleviate the anxiety of parents, facilitate clinical medication, rescue medication of urgent and critical patients, reduce the workload of nurses and reduce the pain of the sick children, so the intravenous indwelling needle is widely applied clinically, and in the face of the special group of the sick children, the length of the indwelling time of the intravenous indwelling needle and the comfort of the sick children become the most concerned problems of the nurses and the parents, and the intravenous indwelling needle is also the precondition of sign and popularization for the successful use of the indwelling needle, and is also called as the intravenous trocar. The core components include a flexible catheter/cannula that can be indwelling in a blood vessel, and a stainless steel puncture guiding stylet. When the indwelling needle is used, the catheter and the needle core are punctured into a blood vessel together, after the catheter completely enters the blood vessel, the needle core is withdrawn, and the soft catheter is only indwelling in the blood vessel so as to carry out infusion treatment.

The needle is detained to current double-end most when being detained in the blood vessel, because long-time fixed, the jam of pipe leads to blood not to circulate, and certain blood that causes piles up, probably promotes certain thrombus, causes certain influence to the patient, and when the patient moved about, probably extrudees the hose and collides with, causes certain influence to the infusion.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a double-head remaining needle device.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a double-head remaining needle comprises a catheter seat and a transfusion tube, wherein a third limiting plate is plastic-coated on the transfusion tube, a catheter is hermetically inserted at one end of the catheter seat, a bracket device and a catheter seat extension arm are sequentially communicated with the catheter seat along one end close to the catheter, and a first limiting plate is further fixed on the catheter seat through plastic;

elastic belts are bonded to two ends of the first limiting plate in the width direction, and bonding plates are bonded to the two elastic belts;

the support device comprises a support tube, a threaded rod is connected to the opening, away from the catheter seat, of the support tube in a threaded penetrating manner, one end of the threaded rod in the support tube is rotatably connected with a sealing valve through a rotating shaft, a support guide rod is arranged at the other end of the sealing valve, a blood vessel support is arranged at the other end of the support guide rod, and the blood vessel support is of an elastic supporting structure;

the improved infusion tube is characterized in that an extension tube is connected between the guide tube seat extension arm and the infusion tube in a sealed and inserted mode, a limiting seat is sleeved on the extension tube, a bolt is connected to the upper surface of the limiting seat in a threaded penetrating mode, one end, close to the interior of the limiting seat, of the bolt is connected with a tube sealing plate in a rotating mode through a rotating shaft, and a second limiting plate is plastic-molded at the bottom end of the limiting seat.

Preferably, the other end of the infusion tube is provided with a sealed infusion joint.

Preferably, an opening at one end of the catheter seat far away from the catheter is provided with an isolating plug.

Preferably, a needle tube is hermetically inserted in the isolating plug, and the needle tube penetrates and extends to the outside of the opening of the catheter.

Preferably, a needle seat is arranged at one end, far away from the catheter, of the needle tube, and a sheath is sleeved on the needle tube.

Preferably, the infusion tube is communicated with an end cap made of plastic rubber.

Preferably, the other end of the threaded rod is welded with an operation block.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses in, this needle is kept somewhere to double-end, through the design of spacing seat, reduced the patient and can extrude the extension pipe when the activity, improved the double-end and kept somewhere the security of needle.

2. The utility model discloses in, this needle is kept somewhere to double-end through the design of support device for rotate the operation piece and push intravascular dilation with support guide bar and vascular support, played certain stability to intravascular blood circulation.

3. The utility model discloses in, this needle is kept somewhere to double-end, through the design of limiting plate, reduced the patient and can keep somewhere the needle to the double-end and carry out certain activity displacement when the activity, increased certain cushioning effect, further improved the double-end and kept somewhere the security of needle.

Drawings

FIG. 1 is a perspective view of a double-ended indwelling needle according to the present invention;

FIG. 2 is a side view of a double-ended indwelling needle according to the present invention;

fig. 3 is a schematic structural view of the double-ended indwelling needle according to the present invention.

Illustration of the drawings:

1. a catheter hub; 2. a catheter hub extension arm; 3. a bracket device; 31. a stent tube; 32. a sealing valve; 33. a threaded rod; 34. an operation block; 35. a vascular stent; 36. a bracket guide rod; 4. A first limit plate; 5. an elastic band; 6. an isolation plug; 7. a sheath; 8. a needle wing; 9. a needle seat; 10. an extension tube; 11. a third limiting plate; 12. a tube sealing plate; 13. a bolt; 14. a limiting seat; 15. a second limiting plate; 16. a transfusion tube; 17. sealing the infusion joint; 18. an end cap; 19. a needle tube; 20. a conduit; 21. and (7) adhering the board.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-3, a double-ended indwelling needle comprises a catheter base 1 and an infusion tube 16, wherein a third limiting plate 11 is plastic-rubber-coated on the infusion tube 16, a catheter 20 is hermetically inserted into one end of the catheter base 1, a bracket device 3 and a catheter base extension arm 2 are sequentially communicated with the catheter base 1 along one end close to the catheter 20, and a first limiting plate 4 is further fixed on the catheter base 1;

elastic belts 5 are bonded to two ends of the first limiting plate 4 in the width direction, and bonding plates 21 are bonded to the two elastic belts 5;

the stent device 3 comprises a stent tube 31, a threaded rod 33 is connected to an opening of the stent tube 31 away from the catheter seat 1 in a threaded penetrating manner, one end of the threaded rod 33 in the stent tube 31 is rotatably connected with a sealing valve 32 through a rotating shaft, the other end of the sealing valve 32 is provided with a stent guide rod 36, the other end of the stent guide rod 36 is provided with a blood vessel stent 35, and the blood vessel stent 35 is an elastic supporting structure;

an extension pipe 10 is connected between the conduit seat extension arm 2 and the infusion pipe 16 in a sealed and inserted mode, a limiting seat 14 is sleeved on the extension pipe 10, a bolt 13 is connected to the upper surface of the limiting seat 14 in a threaded penetrating mode, one end, close to the interior of the limiting seat 14, of the bolt 13 is connected with a tube sealing plate 12 in a rotating mode through a rotating shaft, and a second limiting plate 15 is plastic-molded at the bottom end of the limiting seat 14.

The other end of the infusion tube 16 is provided with a sealed infusion connector 17.

An opening at one end of the catheter hub 1 away from the catheter 20 is provided with an isolating plug 6.

The isolating plug 6 is inserted with a needle tube 19 in a sealing way, and the needle tube 19 extends to the outside of the opening of the catheter 20.

The needle tube 19 is provided with a needle base 9 at one end far away from the catheter 20, and the needle tube 19 is sleeved with a sheath 7.

An end cap 18 is connected to the infusion tube 16 by plastic.

The other end of the threaded rod 33 is welded with an operation block 34.

The second limiting plate 15 is also provided with an elastic belt 5 and an adhesive plate 21 which have the same structure as the first limiting plate 4, the elastic belt 5 is adhered to two ends of the second limiting plate 15 in the width direction, and the adhesive plate 21 is adhered to the two elastic belts 5.

The third limiting plate 11 is also provided with an elastic band 5 and an adhesive plate 21 which have the same structure as the first limiting plate 4, the elastic band 5 is adhered to two ends of the third limiting plate 11 in the width direction, and the adhesive plate 21 is adhered to the two elastic bands 5.

The working principle is as follows:

when the double-end remaining needle is used for transfusion, the sealed transfusion connector 17 is hermetically connected through a transfusion hose, at the moment, the transfusion enters the catheter holder 1, so that the catheter holder 1, the catheter holder extension arm 2, the support device 3, the extension tube 10, the needle tube 19 and the transfusion tube 16 are not detained by air, the needle wing 8 is pinched, the needle tube 19 is aligned to a blood vessel in the skin, the needle tube 19 is aligned to be inserted into the blood vessel by pushing the needle wing 8, the skin surface is primarily fixed through the bonding plates 21, the catheter holder 1, the extension tube 10 and the transfusion tube 16 are limited, the needle wing 8 is pulled, the needle wing 8 drives the needle seat 9 to pull out and separate the needle tube 19 from the catheter 20 and the catheter holder 1, at the moment, the sheath 7 is sleeved at the tail end of the needle tube 19 to protect, the isolation plug 6 is used for isolating and sealing the outside, the operation block 34 is rotated, at the moment, the operation block 34 drives the threaded rod 33, make threaded rod 33 promote seal valve 32 and drive support guide bar 36, under the elasticity guide effect of support guide bar 36, support guide bar 36 drives vascular support 35 this moment and gets into pipe seat 1 through support tube 31 in, reentrant pipe 20 and extend and guide to the pipe 20 outside, make vascular support 35 detain in the blood vessel, at this moment under the elastic support effect of vascular support 35, prop the blood vessel open, good blood vessel mediation effect has been played, it is fixed to further bond a plurality of splice-plate 21 through medical sticky tape, under the effect of elastic webbing 5, make pipe seat 1, extension pipe 10 and transfer line 16 carry out the shock attenuation.

When the double-head remaining needle stops infusion, the sealed infusion joint 17 seals the infusion tube 16 by rotating the sealed infusion joint 17, and the bolt 13 drives the tube sealing plate 12 at the moment by rotating the bolt 13, so that the tube sealing plate 12 extrudes the extension tube 10 to further seal the extension tube.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (7)

1. A double-head remaining needle comprises a catheter seat (1) and an infusion tube (16), and is characterized in that a third limiting plate (11) is plastic-coated on the infusion tube (16), a catheter (20) is hermetically inserted into one end of the catheter seat (1), a bracket device (3) and a catheter seat extension arm (2) are sequentially communicated with the catheter seat (1) along one end close to the catheter (20), and a first limiting plate (4) is further fixed on the catheter seat (1) through plastic;

elastic belts (5) are bonded to two ends of the first limiting plate (4) in the width direction, and bonding plates (21) are bonded to the two elastic belts (5);

the stent device (3) comprises a stent tube (31), a threaded rod (33) is connected to an opening of the stent tube (31) far away from the catheter seat (1) in a threaded penetrating manner, one end of the threaded rod (33) in the stent tube (31) is rotatably connected with a sealing valve (32) through a rotating shaft, a stent guide rod (36) is arranged at the other end of the sealing valve (32), a vascular stent (35) is arranged at the other end of the stent guide rod (36), and the vascular stent (35) is of an elastic supporting structure;

sealed grafting has extension pipe (10) between pipe seat extension arm (2) and transfer line (16), spacing seat (14) have been cup jointed on extension pipe (10), the upper surface screw thread through connection of spacing seat (14) has bolt (13), bolt (13) are close to the inside one end of spacing seat (14) and rotate through the pivot and are connected with tube sealing plate (12), the bottom plastic of spacing seat (14) has second limiting plate (15).

2. The double-ended indwelling needle according to claim 1, wherein the other end of the infusion tube (16) is provided with a sealed infusion connector (17).

3. Double-ended indwelling needle according to claim 1, wherein an opening at the end of the catheter hub (1) remote from the catheter (20) is provided with a septum (6).

4. The double-ended indwelling needle according to claim 3, wherein the septum (6) is hermetically inserted with a needle tube (19), and the needle tube (19) extends through the opening of the catheter (20).

5. The double-ended indwelling needle according to claim 4, wherein the end of the needle tube (19) remote from the catheter (20) is provided with a needle holder (9), and the needle tube (19) is sleeved with a sheath (7).

6. The double-ended indwelling needle according to claim 1, wherein the infusion tube (16) is vented with an end cap (18) molded with plastic.

7. Double-ended indwelling needle according to claim 1, wherein the other end of the threaded rod (33) is welded with an operating block (34).

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