CN210873443U - Medical remaining needle convenient to operation - Google Patents

Abstract

The utility model discloses a medical needle of keeping somewhere convenient to operation, including transparent tee bend and three way connection, three way connection's one end fixedly connected with connects emits, three way connection's the other end is connected with the end and emits, three way connection's free end fixedly connected with extension pipe's one end, extension pipe and the fixed intercommunication of three way connection, transparent tee bend includes the conical tube, the auxiliary line and the person in charge, the other end and the fixed intercommunication of person in charge of extension pipe, the one end fixedly connected with that the person in charge was kept away from to the conical tube keeps somewhere the pipe, fixedly connected with rubber sealing plug on the person in charge's inner wall, can dismantle on the person in charge and be connected with the extension pipe, it has the connecting plug to slide to peg graft in the extension pipe, the one end that the connecting plug is close to the rubber sealing plug is fixed with the. The utility model provides an extension tube can avoid stabbing medical staff when taking off the pjncture needle to can make things convenient for the pjncture needle to remove.

Description

Medical remaining needle convenient to operation

Technical Field

The utility model belongs to keep somewhere the needle field, more specifically the medical needle of keeping somewhere convenient to operation that says so relates to one kind.

Background

The use of the indwelling needle can reduce the pain and the fear of needle injection of the sick children caused by repeated venipuncture, relieve the anxiety of parents, facilitate clinical medication, rescue medication of urgent and critical patients, relieve 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 is also the precondition of the mark and popularization of the successful use of the indwelling needle, and the intravenous indwelling needle is also called as the intravenous trocar; the core comprises a soft catheter which can be detained in a blood vessel and a stainless steel puncture guiding needle core; when in use, the catheter and the needle core are punctured into a blood vessel together, the needle core is withdrawn after the catheter completely enters the blood vessel, and only the soft catheter is detained in the blood vessel so as to carry out infusion treatment.

As the needle head is exposed outside when the needle core is withdrawn, medical personnel sometimes touch the needle head carelessly to cause puncture and infection, thus seriously affecting the safety of the medical personnel; in addition, the operation is carried out by the cooperation of both hands of medical workers in the use process, the error is very easy to occur when the puncture needle is withdrawn after the blood return is seen, and particularly, the operation is inconvenient when a child or a neurology patient is punctured, and even the condition of needle running can occur, so that certain damage is caused to the patient.

SUMMERY OF THE UTILITY MODEL

To the deficiency of the prior art, the utility model provides a medical staff is wounded to the needle mouth thorn when preventing to withdraw from the pjncture needle to the medical needle of keeping somewhere of the operation of being convenient for that can the one-hand control pjncture needle remove.

In order to achieve the above purpose, the utility model provides a following technical scheme: a medical indwelling needle convenient to operate comprises a transparent tee joint and a tee joint, wherein one end of the tee joint is fixedly connected with a joint cap, the other end of the tee joint is connected with the joint cap, the free end of the tee joint is fixedly connected with one end of an extension pipe, the extension pipe is fixedly communicated with the tee joint, the transparent tee joint comprises a conical pipe, an auxiliary pipe and a main pipe, the conical pipe, the auxiliary pipe and the main pipe are of an integrally formed structure, the other end of the extension pipe is fixedly communicated with the main pipe, one end of the conical pipe, far away from the main pipe, is fixedly connected with an indwelling pipe, a rubber sealing plug is fixedly connected to the inner wall of the main pipe, the main pipe is detachably connected with the extension pipe, the extension pipe and the main pipe are in the same axis when the extension pipe is installed on the main pipe, a connecting plug is inserted in the extension pipe in a sliding mode, a puncture needle is fixed, and the extension pipe is provided with an adjusting device for adjusting the position of the connecting plug, and when the puncture needle completely leaves the rubber sealing plug, the puncture needle is completely arranged in the extension pipe.

By adopting the technical scheme, when the puncture needle and the indwelling needle are inserted into a proper venous blood vessel, the connecting plug is moved through the adjusting device, so that the puncture needle is gradually moved out of the venous blood vessel, the puncture needle is moved out of the venous blood vessel and then penetrates through the rubber plug, finally the puncture needle is completely arranged in the extension tube, the extension tube can be detached from the main tube at the moment, and the puncture needle is completely arranged in the extension tube, so that the needle mouth of the puncture needle is prevented from injuring people.

Furthermore, be equipped with on the outer wall of being responsible for and connect the external screw thread, be equipped with on the inner wall of extension pipe one end and connect the internal thread, be responsible for and extension pipe through connecting the external screw thread and connecting internal thread threaded connection.

By adopting the technical scheme, when the extension pipe is required to be detached from the main pipe, the extension pipe can be detached from the main pipe only by rotating the extension pipe.

Furthermore, a positioning retainer ring is fixed on the outer wall of the main pipe.

Through adopting above-mentioned technical scheme, the degree of depth that the extension pipe was twisted into the person in charge can be restricted to the location retaining ring, when extension pipe and location retaining ring butt, fixes a position adjusting device at suitable angle.

Furthermore, be fixed with the elasticity lug on the outer wall of being responsible for, be equipped with the spacing groove that available elasticity lug and its joint are on the inner wall of extension pipe one end.

Through taking above-mentioned technical scheme, during elastic lug and spacing draw-in groove, the extension pipe is connected with being responsible for, when needs are dismantled extension pipe and being responsible for, is controlling to live and is being responsible for and pull the extension pipe outwards under the condition of position, and elastic lug takes place to deform this moment and shifts out from spacing draw-in groove to dismantle the extension pipe from being responsible for.

Further, adjusting device includes runner and support, the upper portion at the extension pipe is fixed to the support, the support is the acute angle with vertical plane, it is connected with the pivot to rotate on the support, the runner is fixed in the pivot, be equipped with a plurality of initiative teeth on the outer wall of runner, the top of being responsible for is equipped with and supplies the initiative tooth to extend into the opening in the extension pipe, it can be with the driven tooth of initiative tooth meshing to be equipped with a plurality of along its length direction to connect the stopper.

By adopting the technical scheme, the extension rod is held by one hand, and then the connecting plug is driven to move outwards by rotating the rotating wheel, so that the puncture needle is completely moved into the extension tube, and the movement of the puncture needle is controlled by one hand.

Further, a damping block is arranged between the support and the rotating wheel and fixedly connected with the support, and one side, back to the support, of the damping block is abutted to the rotating wheel.

Through adopting above-mentioned technical scheme, the damping piece receives certain damping force when making the runner rotate to the slew velocity of control runner that can be better avoids rotating the damage that causes the puncture to vein at the excessive speed.

Furthermore, a plurality of anti-skidding grooves are formed in the outer wall of the extension pipe.

Through adopting above-mentioned technical scheme, the frictional force of antiskid groove hand and extension pipe more avoids taking place to skid when the hand is held the extension pipe.

Furthermore, a flow stopping clip is clamped on the extension pipe, and a sheath is sleeved outside the indwelling pipe.

By adopting the technical scheme, the sheath plays a role in protecting the indwelling tube.

Furthermore, the puncture needle is of a hollow structure, and a side hole is formed in the outer surface of the front side of the puncture needle.

Further, be equipped with the spacing groove on the outer wall of being responsible for, a pot head of extension pipe is established on being responsible for, wear to be equipped with the gag lever post of pegging graft with the spacing groove on the lateral wall of extension pipe, the one end that the gag lever post was kept away from the spacing groove is fixed with the fixed plate, be fixed with limiting spring between the outer wall of fixed plate and extension pipe, it has the push rod to articulate on the outer wall of fixed plate, the one end that the fixed plate was kept away from to the push rod is fixed with the depression bar, the junction of push rod and depression bar is equipped with the slip cambered surface, the outer wall of extension bar slides.

Through adopting above-mentioned technical scheme, when the extension pipe need be dismantled from being responsible for, only need give the depression bar to the power of extension pipe with a finger, drive the cambered surface that slides to the gag lever post side and slide, push away from the spacing groove completely with the gag lever post through the push rod to can dismantle the extension pipe from being responsible for.

To sum up, the utility model has the advantages that: 1. when the puncture needle and the indwelling needle are inserted into a proper venous blood vessel, the connecting plug is moved through the adjusting device, so that the puncture needle is gradually moved out of the venous blood vessel, finally, the puncture needle is completely in the extension tube, the extension tube can be detached from the main tube at the moment, and the puncture needle is completely in the extension tube, so that the needle mouth of the puncture needle is prevented from injuring people; 2. after the extension rod is held, the connecting plug is driven to move in the extension tube by rotating the rotating wheel, so that the movement of the puncture needle is controlled by one hand.

Drawings

FIG. 1 is a three-dimensional structure diagram of a medical indwelling needle convenient for operation according to the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at I;

FIG. 3 is a sectional view of the connection structure of the extension pipe and the main pipe;

FIG. 4 is an enlarged view of a portion of FIG. 3 at II;

FIG. 5 is a schematic structural view of the elastic bump connected to the slot;

FIG. 6 is a schematic view of a connection structure of the push rod, the pressure rod and the limit rod;

fig. 7 is a schematic structural view of the limiting rod and the limiting groove when the limiting rod is inserted.

Reference numerals: 1. a needle nozzle; 2. a transparent tee joint; 3. positioning a retainer ring; 4. an extension tube; 5. a flow stopping clip; 6. a three-way joint; 7. end cap; 8. a joint cap; 9. an extension pipe; 10. an anti-slip groove; 11. a driving tooth; 12. a rotating wheel; 13. a support; 14. a rotating shaft; 15. an opening; 16. a tapered tube; 17. a secondary pipe; 18. an indwelling tube; 19. puncturing needle; 20. a driven tooth; 21. a connecting plug; 22. a main pipe; 23. a rubber sealing plug; 24. an elastic bump; 25. a damping block; 26. a fixing plate; 27. a limiting rod; 28. a limiting spring; 29. a push rod; 30. a pressure lever; 31. and (4) sliding the arc surface.

Detailed Description

An embodiment of the medical indwelling needle of the present invention which is easy to operate will be further described with reference to fig. 1 to 7.

As shown in figure 1, a medical indwelling needle convenient for operation comprises a transparent tee joint 2 and a tee joint 6, wherein one end of the tee joint 6 is fixedly connected with a joint cap 8, the other end of the tee joint 6 is connected with an end cap 7, the free end of the tee joint 6 is fixedly connected with one end of an extension pipe 4, the extension pipe 4 is fixedly communicated with the tee joint 6, a flow stopping clamp 5 is clamped on the extension pipe 4, the transparent tee joint 2 comprises a conical pipe 16, an auxiliary pipe 17 and a main pipe 22, the auxiliary pipe 17 is arranged on the left side of the main pipe 22, the conical pipe 16 is arranged on the rear end of the main pipe 22, the conical pipe 16, the auxiliary pipe 17 and the main pipe 22 are of an integrated structure, the other end of the extension pipe 4 is fixedly communicated with the right side of the main pipe 22, one end of the conical pipe 16, far away from the main pipe 22, is fixedly connected with an indwelling pipe 18, the inner wall, when the extension pipe 9 is installed on the main pipe 22, the extension pipe 9 and the main pipe 22 are located on the same axis, a connecting plug 21 is inserted in the extension pipe 9 in a sliding mode, a puncture needle 19 is fixed at one end, close to the rubber sealing plug 23, of the connecting plug 21, the free end of the puncture needle 19 penetrates through the conical pipe 16 and the indwelling pipe 18 and extends out of the indwelling pipe 18, the puncture needle 19 is of a hollow structure, a side hole is formed in the outer surface of the front side of the puncture needle 19, an adjusting device for adjusting the position of the connecting plug 21 is arranged on the extension pipe 9, when the puncture needle 19 completely leaves the rubber sealing plug 23, the puncture needle 19 is completely arranged in the extension pipe 9, and then the extension pipe 9 is detached from the main pipe 22, and the puncture needle 19.

As shown in fig. 4, be equipped with on the one end outer wall that is kept away from conical duct 16 in main pipe 22 and connect the external screw thread, be equipped with on the inner wall of extension pipe 9 one end and connect the internal screw thread, main pipe 22 and extension pipe 9 are through connecting external screw thread and connecting internal screw thread threaded connection, rotate extension pipe 9 and realize dismantling extension pipe 9 from main pipe 22 through fixed main pipe 22 back, be fixed with location retaining ring 3 on the outer wall of main pipe 22, location retaining ring 3 can restrict the degree of depth that extension pipe 9 twisted into main pipe 22, when extension pipe 9 and location retaining ring 3 butt, fix a position adjusting device at suitable angle.

Fig. 5 is a schematic view of another structure that can be disassembled between the extension pipe 9 and the main pipe 22, in which an elastic protrusion 24 is fixed on the outer wall of the main pipe 22, the cross section of the elastic protrusion 24 is semicircular, a limiting groove that can be engaged with the elastic protrusion 24 is provided on the inner wall of one end of the extension pipe 9, when the elastic protrusion 24 is engaged with the limiting groove, the extension pipe 9 is connected with the main pipe 22, when the extension pipe 9 and the main pipe 22 need to be disassembled, the extension pipe 9 is pulled outwards under the condition that the position of the main pipe 22 is controlled by a hand, and at this time, the elastic protrusion 24 is deformed by a force and is moved out of the limiting groove, so that the extension pipe 9 is disassembled; the resilient projection 24 is provided as small as possible while ensuring the connection of the extension pipe 9 and the main pipe 22, thereby facilitating the detachment of the extension pipe 9 from the main pipe 22.

As shown in fig. 6 and 7, which are schematic diagrams of a third detachable structure between the extension pipe 9 and the main pipe 22, a limiting groove is provided on an outer wall of the main pipe 22, one end of the extension pipe 9 is sleeved on the main pipe 22, a limiting rod 27 inserted into the limiting groove is inserted into a side wall of the extension pipe 9, a fixing plate 26 is fixed at one end of the limiting rod 27 far from the limiting groove, a limiting spring 28 is fixed between the fixing plate 26 and the outer wall of the extension pipe 9, when the limiting rod 27 is inserted into the limiting groove, the limiting spring 28 is in an original length state, the limiting rod 27 is driven to leave the limiting groove, the resilience of the limiting spring 28 needs to be overcome, a push rod 29 is hinged on the outer wall of the fixing plate 26, a pressure rod 30 is fixed at one end of the push rod 29 far from the fixing plate 26, an angle between the push rod 29 and the pressure rod 30 is set to be equal to or larger than 90, when the extension pipe 9 needs to be detached from the main pipe 22, the extension pipe 9 is only required to be clamped by a thumb and a middle finger, then the pressure rod 30 is given force to the extension pipe 9 by a forefinger, so that the sliding arc surface 31 is driven to slide towards the limiting rod 27, the limiting rod 27 is completely pushed away from the limiting groove by the push rod 29, and the extension pipe 9 can be very easily detached from the main pipe 22 by one hand.

As shown in fig. 2 and 3, the adjusting device includes a rotating wheel 12 and a bracket 13, the bracket 13 is fixed on the upper portion of the extension pipe 9 near the left side, the bracket 13 is arranged on the left side of the rotating wheel 12, the bracket 13 forms an acute angle with a vertical plane, an included angle between the bracket 13 and the vertical plane is preferably 30 degrees, the bracket 13 is arranged near one end of the extension pipe 9 far away from the main pipe 22, the bracket 13 is rotatably connected with a rotating shaft 14, the rotating wheel 12 is fixed on the rotating shaft 14, the outer wall of the rotating wheel 12 is provided with a plurality of driving teeth 11, the top of the main pipe 22 is provided with an opening 15 through which the driving teeth 11 can extend into the extension pipe 9, and the connecting plug 21 is provided with a plurality of driven teeth; the puncture needle 19 is completely moved into the extension tube 9 by holding the extension tube 9 with one hand and then moving the connecting plug 21 outwards by rotating the rotating wheel 12, so that the puncture needle 19 is operated by one hand.

In order to avoid the runner 12 to rotate at will, be equipped with damping piece 25 between support 13 and the runner 12, damping piece 25 and support 13 fixed connection, one side and the runner 12 butt of damping piece 25 back to support 13, damping piece 25 is in compression state, damping piece 25 gives runner 12 bounce-back force, the material of damping piece 25 sets up to rubber, damping piece 25 makes runner 12 receive certain damping force when rotating, thereby the slew velocity of control runner 12 that can be better, avoid rotating too fast and cause pjncture needle 19 to the damage of vein blood vessel.

In order to avoid slipping when holding the extension pipe 9 by hand, the outer wall of the extension pipe 9 is provided with a plurality of anti-slip grooves 10.

In order to protect the indwelling tube 18, a sheath is fitted over the outside of the indwelling tube 18, and when it is necessary to use the indwelling tube 18, the sheath can be detached from the indwelling tube 18.

In the using process, a patient clenches a fist and ties a pulse pressing belt at the position 5-8 cm above a puncture position, searches for a vein vessel which can use a vein indwelling needle, after the puncture position is determined, alcohol is adopted for disinfection, the flow stopping clamp 5 is closed, the thumb and the middle finger of the right hand of a medical worker clamp the extension tube 9, the inclined plane of the needle mouth 1 of the puncture needle 19 is upwards and penetrates into the vein at an angle of 15-30 degrees, the needle inserting speed is preferably slow so as not to puncture the vein at an excessive speed, after blood return occurs, the angle is reduced to an angle of 5-10 degrees, the index finger rotating wheel 12 is used for continuously inserting the needle for 2 mm so that the puncture needle 19 is withdrawn for 2-3 mm, then the indwelling tube 18 is continuously pushed forwards, when the indwelling tube 18 is completely indwelling in the vein vessel, the index finger is used for stirring the rotating wheel 12 to rotate, the connecting plug 21 slides in the extension tube 9 of the main tube 22 through the matching of the driving tooth 11, the connecting plug 21 drives the puncture needle 19 to move, the puncture needle 19 penetrates through the rubber sealing plug, and finally the puncture needle 19 is completely arranged in the extension pipe 9, so that the needle withdrawing operation is completed, after medical workers fix the transparent tee joint 2 by adopting medical cotton paste, the auxiliary pipe 17 and the extension pipe 4 are respectively arranged on the left side and the right side of the main pipe 22 and can limit the rotation of the main pipe 22, the remaining pipe 18 is prevented from rotating easily, the extension pipe 9 is detached from the main pipe 22, and then the flow stopping clamp 5 is opened to perform infusion operation.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (10)

1. The utility model provides a medical needle of keeping somewhere convenient to operation, includes transparent tee bend and three way connection, three way connection's one end fixedly connected with connects emits, and three way connection's the other end is connected with the end and emits, and three way connection's free end fixedly connected with extends the one end of pipe, and extension pipe and the fixed intercommunication of three way connection, transparent tee bend include the conical tube, the auxiliary pipe and be responsible for, and the conical tube, the auxiliary pipe and the person in charge be the integrated into one piece structure, and the other end of extension pipe and the fixed intercommunication of being responsible for, the conical tube is kept away from the one end fixedly connected with who is responsible for and is kept somewhere the pipe: the extension pipe is detachably connected to the main pipe, the extension pipe and the main pipe are located on the same axis when the extension pipe is installed on the main pipe, a connecting plug is inserted in the extension pipe in a sliding mode, a puncture needle is fixed to one end, close to the rubber sealing plug, of the connecting plug, the free end of the puncture needle penetrates through the conical pipe and the indwelling pipe and extends out of the indwelling pipe, an adjusting device for adjusting the position of the connecting plug is arranged on the extension pipe, and when the puncture needle completely leaves the rubber sealing plug, the puncture needle is completely arranged in the extension pipe.

2. A medical indwelling needle which is easy to handle according to claim 1, wherein: be equipped with on the outer wall of being responsible for and connect the external screw thread, be equipped with on the inner wall of extension pipe one end and connect the internal thread, be responsible for and extension pipe through connecting the external screw thread and connecting internal thread threaded connection.

3. A medical indwelling needle which is easy to handle according to claim 2, wherein: and a positioning retainer ring is fixed on the outer wall of the main pipe.

4. A medical indwelling needle which is easy to handle according to claim 1, wherein: the outer wall of the main pipe is fixed with an elastic lug, and the inner wall of one end of the extension pipe is provided with a limit groove which can be clamped with the elastic lug by the elastic lug.

5. A medical indwelling needle which is easy to handle according to claim 1, wherein: adjusting device includes runner and support, the upper portion at the extension pipe is fixed to the support, the support is the acute angle with vertical plane, it is connected with the pivot to rotate on the support, the runner is fixed in the pivot, be equipped with a plurality of initiative teeth on the outer wall of runner, the top of being responsible for is equipped with and supplies the initiative tooth to extend into the opening in the extension pipe, it is equipped with a plurality of driven teeth that can mesh with the initiative tooth along its length direction to connect the stopper.

6. An easy-to-handle medical indwelling needle according to claim 5, wherein: and a damping block is arranged between the support and the rotating wheel and fixedly connected with the support, and one side of the damping block, which is back to the support, is abutted against the rotating wheel.

7. A medical indwelling needle which is easy to handle according to claim 1, wherein: and a plurality of anti-skidding grooves are formed in the outer wall of the extension pipe.

8. A medical indwelling needle which is easy to handle according to claim 1, wherein: the extension pipe is clamped with a flow stopping clip, and the outer part of the indwelling pipe is sleeved with a sheath.

9. A medical indwelling needle which is easy to handle according to claim 1, wherein: the puncture needle is of a hollow structure, and a side hole is formed in the outer surface of the front side of the puncture needle.

10. A medical indwelling needle which is easy to handle according to claim 1, wherein: be equipped with the spacing groove on the outer wall of being responsible for, a pot head of extension pipe is established on being responsible for, wear to be equipped with the gag lever post of pegging graft with the spacing groove on the lateral wall of extension pipe, the one end that the spacing groove was kept away from to the gag lever post is fixed with the fixed plate, be fixed with limiting spring between the outer wall of fixed plate and extension pipe, it has the push rod to articulate on the outer wall of fixed plate, the one end that the fixed plate was kept away from to the push rod is fixed with the depression bar, the junction of push rod and depression bar is equipped with the slip cambered surface, the outer wall that.

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