CN215023960U

CN215023960U - Indwelling needle for hemodialysis

Info

Publication number: CN215023960U
Application number: CN202120211628.1U
Authority: CN
Inventors: 金焕
Original assignee: First Affiliated Hospital of Anhui Medical University
Current assignee: First Affiliated Hospital of Anhui Medical University
Priority date: 2021-01-26
Filing date: 2021-01-26
Publication date: 2021-12-07
Anticipated expiration: 2031-01-26

Abstract

The utility model relates to an indwelling needle for hemodialysis. The indwelling needle for hemodialysis comprises a needle tube, wherein one end of the needle tube is fixedly connected with a needle head, the upper end of the needle head is fixedly connected with a connecting outer tube, the upper end of the connecting outer tube is connected with a connecting inner tube in a threaded manner, the upper end of the connecting inner tube is fixedly connected with an elastic part, the upper end of the elastic part is fixedly connected with a top ring part, the needle tube is connected with a needle body, and the needle body penetrates through the needle head, the connecting outer tube, the connecting inner tube, the elastic part and the top ring part; this hemodialysis is with keeping somewhere needle, simple structure, convenient operation uses in a flexible way, has higher security performance, and the doctor of being convenient for simultaneously is fixed should keep somewhere the needle or is opened and close the infusion pipeline and use, and the use of using widely in the trade of being convenient for.

Description

Indwelling needle for hemodialysis

Technical Field

The utility model belongs to the technical field of keep somewhere the needle, concretely relates to hemodialysis is with keeping somewhere needle.

Background

Keep somewhere the needle is a medical instrument who is used for carrying out infusion treatment many times in a certain period, the needle is kept somewhere to tradition, in the puncture process, because medical personnel's carelessness is easy with the overlength of pjncture needle puncture, thereby make patient receive unexpected injury, cause the potential safety hazard, in the needle is kept somewhere to safety mechanism and the safe type that is used for keeping somewhere the needle at patent CN201820806356.8, it is through the spring between two sets of cardboard cooperation cardboards, avoid medical personnel to insert the condition of too deep, but the service environment of cardboard is comparatively single, and can't adjust the degree of depth condition that the needle body can insert.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems and provide a retaining needle for hemodialysis with simple structure and reasonable design.

The utility model discloses a following technical scheme realizes above-mentioned purpose:

the utility model provides an indwelling needle for hemodialysis, includes the syringe needle spare, the one end fixedly connected with syringe needle of syringe needle spare, the upper end fixedly connected with of syringe needle connects the outer tube, the upper end threaded connection who connects the outer tube has the connection inner tube, the upper end fixedly connected with elastic component of connection inner tube, the upper end fixedly connected with top ring piece of elastic component, the syringe needle spare is connected with the needle body, the needle body runs through syringe needle, connection outer tube, connection inner tube, elastic component and top ring piece.

As a further optimization scheme of the utility model, the surface of the needle body is provided with scale marks.

As the utility model discloses a further optimization scheme, the surface of needle pipe fitting is connected with the needle wing, the quantity of needle wing is two sets of, and the symmetry is in the installation of needle pipe fitting, connect jack and connector card hole have been seted up to the surface of needle wing, the connector card hole sets up in the border position of needle wing, the connector card jogged joint has the draw-in groove, the draw-in groove is with external and connector card hole intercommunication.

As a further optimization scheme of the utility model, the surface of needle pipe fitting is connected with the ring, the surface of ring articulates there is the connection member, the surface of connecting the member is connected with presss from both sides the pipe fitting.

As the utility model discloses a further optimization scheme, the double-layered pipe fitting includes intubation slot, connecting tube groove and closed groove, the intubation slot communicates with each other with the connecting tube groove, connecting tube groove and closed groove intercommunication.

As the utility model discloses a further optimization scheme, press from both sides the inside of pipe fitting and seted up the inside groove, the inside of inside groove is provided with the kelly, the one end of kelly runs through and presss from both sides the pipe fitting, and this end is connected with holds and takes the spheroid, the other end of kelly inserts in the closed tank, and with the cell wall contact of closed tank, the fixed surface of kelly is connected with the clamp plate, be provided with the spring part between clamp plate and the inside groove.

As a further optimization scheme of the utility model, the surface of pressing from both sides the pipe fitting has been seted up and has been taken the grooving.

As the utility model discloses a further optimization scheme, the ring includes outer ring, the inside swing joint of outer ring has interior ring, interior ring can wind outer ring free rotation, the inside fixedly connected with rubber lantern ring of interior ring.

The beneficial effects of the utility model reside in that: the needle wing is convenient for doctors to hold and fix for use, and the outer surface of the needle wing is provided with the connecting jack and the connecting clamp hole, so that the remaining needle can be fixed by matching the connecting jack or the connecting clamp hole with the fixing rope according to the environment in which the remaining needle is used; the connecting inner tube and the connecting outer tube are further arranged, the connecting inner tube is in threaded connection with the connecting outer tube, the length of the connecting inner tube outside the connecting outer tube can be adjusted by rotating the connecting inner tube, doctors are well assisted to use the indwelling needle when inserting the indwelling needle into a patient, and after the top ring piece is contacted with the skin of the patient, resistance feedback is given to the doctors by matching with the elastic piece, so that the indwelling needle is effectively prevented from being inserted too deeply and causing injury to the patient; the clamping pipe fitting is further provided with a pipe inserting groove, so that the infusion pipeline can be conveniently and quickly inserted into the clamping pipe fitting and used in a matched mode, the clamping pipe fitting is further provided with a closed groove, a clamping rod is arranged at the position of a notch of the closed groove and used in a matched mode with a spring part, the situation that the infusion pipeline is mistakenly plugged into the closed groove and clamped, the infusion pipeline cannot be normally used is prevented, the situation that the closed infusion pipeline is mistakenly touched to recover conveying use is also prevented, and the use safety is greatly improved; the whole indwelling needle is simple in structure, convenient to operate, flexible to use and high in safety performance, and meanwhile, doctors can fix the indwelling needle or open and close the infusion pipeline conveniently for use, so that the indwelling needle is convenient to popularize and use in the industry.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic structural view of the pipe clamping device of the present invention;

fig. 3 is a schematic structural view of the ring member of the present invention;

fig. 4 is a schematic structural view of the needle body of the present invention.

In the figure: 1. a needle tubing member; 2. a needle wing; 3. connecting the jacks; 4. connecting the clamping holes; 5. a card slot; 6. a ring member; 7. connecting rod pieces; 8. clamping the pipe fitting; 9. a needle head; 10. connecting an outer pipe; 11. connecting the inner pipes; 12. an elastic member; 13. a top ring member; 14. a needle body; 15. a tube inserting groove; 16. connecting a pipe groove; 17. closing the groove; 18. a clamping rod; 19. holding the ball; 20. an inner tank; 21. pressing a plate; 22. a spring member; 23. a pipe lapping groove; 24. an outer ring member; 25. a rubber collar; 26. an inner ring member; 27. a needle tubing member; 28. the needle is inserted.

Detailed Description

The present application will now be described in further detail with reference to the drawings, it should be noted that the following detailed description is given for illustrative purposes only and is not to be construed as limiting the scope of the present application, as those skilled in the art will be able to make numerous insubstantial modifications and adaptations to the present application based on the above disclosure.

Example 1

As shown in fig. 1 to 3, an indwelling needle for hemodialysis comprises a needle tube member 1, wherein one end of the needle tube member 1 is fixedly connected with a needle head 9, the upper end of the needle head 9 is fixedly connected with a connecting outer tube 10, the upper end of the connecting outer tube 10 is in threaded connection with a connecting inner tube 11, the upper end of the connecting inner tube 11 is fixedly connected with an elastic member 12, the upper end of the elastic member 12 is fixedly connected with a top ring member 13, the needle tube member 1 is connected with a needle body 14, and the needle body 14 penetrates through the needle head 9, the connecting outer tube 10, the connecting inner tube 11, the elastic member 12 and the top ring member 13. The outer surface of the needle body 14 is provided with scale marks. The connecting inner tube 11 can be rotated according to the scale marks, so that the length of the connecting inner tube 11 outside the connecting outer tube 10 is adjusted, doctors are well assisted to use the indwelling needle when inserting the indwelling needle into a patient, after the top ring piece 13 is contacted with the skin of the patient, resistance feedback is given to the doctors by matching with the elastic piece 12, and the indwelling needle is effectively prevented from being inserted too deeply and causing injury to the patient. In the in-service use, top ring spare 13 can adopt the metal material also can select for use the medical working of plastics that is fit for with human contact, its and needle body 14 contact part can cooperate medical rubber spare to use, and elastic component 12 can select for use medical rubber spare (pipe), provide certain elasticity as the resistance use can, also can select for use the spring part, but when selecting for use the spring part, should be fixed (the adhesion) with the end of top ring spare 13 and being connected inner tube 11 respectively with the both ends of spring part.

The utility model discloses a needle pipe fitting, including needle pipe fitting 1, connecting card hole 4, needle pipe fitting 1's surface is connected with the needle wing 2, the quantity of needle wing 2 is two sets of, and the installation of symmetry needle pipe fitting 1, connecting jack 3 and connecting card hole 4 have been seted up to the surface of needle wing 2, connecting card hole 4 sets up in the border position of needle wing 2, connecting card hole 4 is connected with draw-in groove 5, draw-in groove 5 communicates external and connecting card hole 4. Draw-in groove 5 cooperation connection card hole 4 uses, can be fast go into the connection card hole 4 with fixed rope card in, doctors of being convenient for use, but only be fit for using in the position that is difficult for removing, to some easy removal, thereby lead to keeping somewhere the position that the needle drops easily, still should adopt the mode of using fixed rope and the cooperation of interface connection hole 3, come the fixed needle of keeping somewhere, in the use of reality, the bottom surface of needle wing 2 can also set up the one deck and paste the layer, under the certain condition of being convenient for, doctor's quick fixed use.

The outer surface of the needle tube member 1 is connected with a ring member 6, the ring member 6 comprises an outer ring member 24, an inner ring member 26 is movably connected inside the outer ring member 24, the inner ring member 26 can freely rotate around the outer ring member 24, a rubber lantern ring 25 is fixedly connected inside the inner ring member 26, the ring member 6 can be sleeved on the outer surface of the needle tube member 1 through the rubber lantern ring 25 with elasticity, and the outer ring member 24 can freely rotate, so that the needle tube member is convenient to use by a doctor. The outer surface of the ring member 6 is hinged with a connecting rod member 7, the connecting rod member 7 can be matched with a hinged member with a certain resistance value for use, so that the connecting rod member 7 cannot easily rotate, and the outer surface of the connecting rod member 7 is connected with a pipe clamping member 8. The tube clamping part 8 can be a common infusion clamp or the tube clamping part 8 provided by the embodiment: the pipe clamping part 8 comprises a pipe inserting groove 15, a connecting pipe groove 16 and a closed groove 17, the pipe inserting groove 15 is communicated with the connecting pipe groove 16, and the connecting pipe groove 16 is communicated with the closed groove 17. An inner groove 20 is formed in the pipe clamping piece 8, a clamping rod 18 is arranged in the inner groove 20, one end of the clamping rod 18 penetrates through the pipe clamping piece 8 and is connected with a holding ball 19, the other end of the clamping rod 18 is inserted into the closed groove 17 and is in contact with the wall of the closed groove 17, a pressing plate 21 is fixedly connected to the outer surface of the clamping rod 18, and a spring piece 22 is arranged between the pressing plate 21 and the inner groove 20. The outer surface of the pipe clamping piece 8 is provided with a pipe overlapping groove 23, and when the pipe clamping piece 8 is not used, the infusion pipeline can be overlapped at the position of the pipe overlapping groove 23.

When the indwelling needle for hemodialysis is used, a doctor can conveniently hold and fix the indwelling needle by the arranged needle wing 2, meanwhile, the outer surface of the needle wing 2 is provided with the connecting jack 3 and the connecting clamp hole 4, and the use of the indwelling needle by matching the connecting jack 3 or the connecting clamp hole 4 with a fixing rope can be judged according to the environment in which the indwelling needle is used; the indwelling needle is further provided with a connecting inner tube 11 and a connecting outer tube 10, the connecting inner tube 11 is in threaded connection with the connecting outer tube 10, the length of the connecting inner tube 11 outside the connecting outer tube 10 can be adjusted by rotating the connecting inner tube 11, so that doctors are well assisted in using the indwelling needle when inserting the indwelling needle into a patient, after the top ring piece 13 is contacted with the skin of the patient, the elastic piece 12 is matched to give resistance feedback to the doctors, and the indwelling needle is effectively prevented from being inserted too deep and causing injury to the patient; the clamping pipe fitting 8 is further arranged, the pipe inserting groove 15 is formed in the clamping pipe fitting 8, the infusion pipeline can be conveniently and rapidly inserted into the clamping pipe fitting 8 and used in a matched mode, the clamping pipe fitting 8 is further provided with a closed groove 17, a clamping rod 18 is arranged at the position of a notch of the closed groove 17 and used in a matched mode with a spring piece 22, the infusion pipeline can be prevented from being jammed in the closed groove 17 by mistake and clamped tightly, the infusion pipeline cannot be used normally, the infusion pipeline which is closed originally is prevented from being touched by mistake, conveying and using are recovered, and using safety is greatly improved; the whole indwelling needle is simple in structure, convenient to operate, flexible to use and high in safety performance, and meanwhile, doctors can fix the indwelling needle or open and close the infusion pipeline conveniently for use, so that the indwelling needle is convenient to popularize and use in the industry.

In practical use, the needle body 14 may be formed by a needle tube 27 and an insertion needle 28 as shown in fig. 4, the insertion needle 28 is located inside the needle tube 27, the identification scale is disposed on the surface of the needle tube 27, the insertion needle 28 is a triangular blade, the tail of the insertion needle is connected to a connector which is easy to pull, the connector may be a wire drawing or a pull rod, the connector is exposed from the tail of the needle tube 1, after being inserted into the body of a patient, the insertion needle 28 is pulled out through the connector, the needle tube 27 is left in the body of the patient, and if necessary, the needle can be used with the aid of a guide wire.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.

Claims

1. The utility model provides an indwelling needle for hemodialysis, its characterized in that includes the syringe needle spare, the one end fixedly connected with syringe needle of syringe needle spare, the upper end fixedly connected with of syringe needle connects the outer tube, the upper end threaded connection who connects the outer tube has the connection inner tube, the upper end fixedly connected with elastic component of connection inner tube, the upper end fixedly connected with top ring piece of elastic component, the syringe needle spare is connected with the needle body, the needle body runs through syringe needle, connection outer tube, connection inner tube, elastic component and top ring piece.

2. The indwelling needle for hemodialysis of claim 1, wherein: the outer surface of the needle body is provided with scale marks.

3. The indwelling needle for hemodialysis of claim 2, wherein: the utility model discloses a needle pipe fitting, including needle pipe fitting, needle pipe fitting's surface is connected with the needle wing, the quantity of needle wing is two sets of, and the installation of symmetry needle pipe fitting, jack and connector card hole have been seted up to the surface of needle wing, the connector card hole sets up in the border position of needle wing, the connector card jogged joint has the draw-in groove, the draw-in groove with external and connector card hole intercommunication.

4. The indwelling needle for hemodialysis of claim 3, wherein: the outer surface of the needle pipe fitting is connected with a ring piece, the outer surface of the ring piece is hinged with a connecting rod piece, and the outer surface of the connecting rod piece is connected with a pipe clamping fitting.

5. The indwelling needle for hemodialysis of claim 4, wherein: the pipe clamping piece comprises a pipe inserting groove, a connecting pipe groove and a closed groove, the pipe inserting groove is communicated with the connecting pipe groove, and the connecting pipe groove is communicated with the closed groove.

6. The indwelling needle for hemodialysis of claim 5, wherein: the interior groove has been seted up to the inside of pressing from both sides the pipe fitting, the inside of inside groove is provided with the kelly, the one end of kelly runs through and presss from both sides the pipe fitting, and this end is connected with holds and takes the spheroid, the other end of kelly inserts in the closed slot, and contacts with the cell wall of closed slot, the outer fixed surface of kelly is connected with the clamp plate, be provided with the spring part between clamp plate and the inside groove.

7. The indwelling needle for hemodialysis of claim 6, wherein: the outer surface of the pipe clamping piece is provided with a pipe overlapping groove.

8. The indwelling needle for hemodialysis of claim 7, wherein: the ring piece comprises an outer ring piece, an inner ring piece is movably connected inside the outer ring piece, the inner ring piece can freely rotate around the outer ring piece, and a rubber lantern ring is fixedly connected inside the inner ring piece.