CN213284952U

CN213284952U - Safety remaining needle for intravenous infusion

Info

Publication number: CN213284952U
Application number: CN202021754484.6U
Authority: CN
Inventors: 罗金花; 顾皓靓; 秦丽丽; 杨洋
Original assignee: Affiliated Hospital of Nantong University
Current assignee: Affiliated Hospital of Nantong University
Priority date: 2020-08-21
Filing date: 2020-08-21
Publication date: 2021-05-28
Anticipated expiration: 2030-08-21

Abstract

The utility model discloses a needle is kept somewhere to safety for venous transfusion, including the pipe seat, be connected through the hose between pipe seat and the malleation joint, the side that the malleation connects is fixed with the mounting panel, be fixed with the fixture block on the mounting panel, the time-recorder is installed to the upside of mounting panel, the draw-in groove has been seted up to the bottom of time-recorder, the looks joint between fixture block and draw-in groove, the liquid outlet end of pipe seat is fixed with the pipe, the inside of pipe seat is fixed with first sealed piece, one side of first sealed piece is provided with the sealed piece of second, the one end that the pipe was kept away from to the pipe seat is provided with the needle bush. The utility model discloses a be provided with the time-recorder on the malleation connects, can audio-visually embody the time of keeping somewhere through the time-recorder timing, can make medical personnel accurately know fast effectively and keep somewhere the time that the needle kept somewhere at the human body, improved the security of using, reduced medical personnel's the work degree of difficulty.

Description

Safety remaining needle for intravenous infusion

Technical Field

The utility model relates to the field of medical apparatus, in particular to a safe indwelling needle for venous transfusion.

Background

The venous indwelling needle consists of a stainless steel core, a soft outer sleeve and a plastic needle seat. An infusion tool for puncturing a blood vessel with an outer cannula and a stylet during puncture, withdrawing the stylet after the cannula is fed into the blood vessel, and only leaving the soft outer cannula in the blood vessel for infusion. The use of remaining needle can reduce the misery that the infant caused because of relapse venipuncture and the fear of making a needle, alleviate the headings's anxiety, the clinical medicine of being convenient for, urgent, critical patient's rescue is used medicine, alleviate nurse's work load, it is painful to reduce the infant, therefore the vein is kept somewhere the needle and is being used widely in clinic, in the face of this special colony of infant, the length of vein is kept somewhere needle and the comfort of infant becomes nurse and the headings's problem of paying attention to, also is the prerequisite of sign and popularization that the needle of keeping somewhere was used successfully.

At present, the vein indwelling needle on the market needs to be indwelling for 7 days in a human body at most in clinical nursing work and use, and the indwelling time is often not recorded visually due to long indwelling time.

Therefore, it is necessary to invent a safety indwelling needle for intravenous infusion to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a needle is kept somewhere to safety for venous transfusion, through be provided with the time-recorder on the malleation connects, can audio-visually embody through the time-recorder timing and keep somewhere the time, can make medical personnel know the time of keeping somewhere the needle at the human body fast and accurately effectively, the security of use has been improved, medical personnel's the work degree of difficulty has been reduced, and link to each other through the joint between the time-recorder and the installation board that the malleation connects, make the time-recorder installation simple, be convenient for simultaneously with the time-recorder follow malleation connect the dismantlement, can continue to use after the disinfection, the cost is reduced, with the above-mentioned weak point in the solution technology.

In order to achieve the above object, the present invention provides the following technical solutions: a safety indwelling needle for intravenous infusion comprises a catheter seat, the catheter seat is connected with a positive pressure connector through a hose, a flow stopping clamp is sleeved on the hose, a positive pressure valve is installed on the positive pressure connector, a liquid inlet end of the positive pressure connector is in threaded connection with an end cap, a mounting plate is fixed to the side of the positive pressure connector, a clamping block is fixed to the mounting plate, a timer is installed on the upper side of the mounting plate and is set to be rectangular, a clamping groove is formed in the bottom of the timer, the clamping block is in clamping connection with the clamping groove, a catheter is fixed to the liquid outlet end of the catheter seat, a first sealing block is fixed to the interior of the catheter seat, a second sealing block is arranged on one side of the first sealing block, a needle bushing is arranged at one end, far away from the catheter, of the needle bushing, an inner sleeve is arranged at one end, close to the catheter seat, of the, the inner sleeve is clamped with the catheter base, a steel needle is fixed inside the inner sleeve and sequentially penetrates through the second sealing block, the first sealing block and the catheter, a needle holding handle is fixed on the outer side of the needle bushing, a rubber pipe joint is fixed on the side wall of the catheter base, and the rubber pipe joint is connected with a hose.

Preferably, the number of the clamping blocks and the clamping grooves is four, the clamping blocks are distributed on the mounting plate in a rectangular mode, the clamping grooves are distributed on the bottom surface of the timer in a rectangular mode, and the clamping blocks are matched with the clamping grooves.

Preferably, the upper side edge of the timer is provided with a groove, a timing start button is arranged in the groove, and a reset button is arranged on one side of the timing start button.

Preferably, the inside of inner skleeve is provided with the spring, the spring cup joints on the steel needle, the tail end of spring is provided with safety sleeve, safety sleeve cup joints on the steel needle, be provided with the string between safety sleeve and spring, the one end and the safety sleeve fixed connection of string, the other end of string is connected with the spring, the middle part that safety sleeve kept away from a side of spring has seted up the slide opening, set up to sliding connection between steel needle and the slide opening.

Preferably, the lower side of the rubber hose connector is provided with a backing plate, the backing plate is made of silica gel materials, and the backing plate is fixedly connected with the side wall of the conduit seat.

Preferably, a safety cap is sleeved on the outer side of the conduit.

Preferably, the first sealing block and the second sealing block are made of rubber materials.

In the technical scheme, the utility model provides a technological effect and advantage:

1. the timer is arranged on the positive pressure joint, so that the remaining time can be visually represented by timing through the timer, medical workers can effectively and accurately know the remaining time of the remaining needle in a human body, the use safety is improved, the working difficulty of the medical workers is reduced, and the timer is connected with the mounting plate on the positive pressure joint in a clamping manner, so that the timer is simple to mount and convenient to detach from the positive pressure joint, can be continuously used after being sterilized, and the cost is reduced;

2. the spring and the safety sleeve are arranged on the needle bushing, after the steel needle on the needle bushing is taken down from the catheter seat, the safety sleeve moves to the tip end of the steel needle under the elastic force of the spring, the tip end of the steel needle is embedded in the safety sleeve, medical workers can be prevented from being stabbed, the safety performance is improved, the safety sleeve is connected with the spring through the thin rope, the safety sleeve can be prevented from being separated from the steel needle, and the protection effect of the safety sleeve is guaranteed;

3. through being fixed with the backing plate on the pipe seat, increased the area of contact between pipe seat and patient's hand, conveniently fix the pipe seat in patient's hand for the pipe seat is fixed firm, and the pipe seat rotates when can avoiding withdrawing the needle, reduces the injury that causes patient's hand.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to these drawings.

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

FIG. 2 is a sectional view of the catheter hub and the needle hub of the present invention;

fig. 3 is a sectional view of the catheter hub of the present invention;

FIG. 4 is a cross-sectional view of the needle hub of the present invention;

fig. 5 is a schematic view of the positive pressure joint of the present invention;

fig. 6 is a schematic view of a mounting plate of the present invention;

fig. 7 is a schematic view of the back of the timer according to the present invention.

Description of reference numerals:

the device comprises a pipe seat 1, a hose 2, a positive pressure joint 3, a flow stopping clamp 4, a positive pressure valve 5, an end cap 6, a mounting plate 7, a clamping block 8, a timer 9, a clamping groove 10, a pipe 11, a first sealing block 12, a second sealing block 13, a needle bushing 14, an inner sleeve 15, a steel needle 16, a needle holding handle 17, a rubber pipe joint 18, a groove 19, a timing start button 20, a reset button 21, a spring 22, a safety sleeve 23, a backing plate 24, a safety cap 25 and a string 26.

Detailed Description

In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings.

The utility model provides a safe indwelling needle for venous transfusion as shown in figure 1 and figures 5-7, which comprises a catheter holder 1, wherein the catheter holder 1 is connected with a positive pressure joint 3 through a hose 2, a flow stopping clip 4 is sleeved on the hose 2, a positive pressure valve 5 is installed on the positive pressure joint 3, a liquid inlet end of the positive pressure joint 3 is in threaded connection with an end cap 6, a mounting plate 7 is fixed on the side edge of the positive pressure joint 3, a clamping block 8 is fixed on the mounting plate 7, a timer 9 is installed on the upper side of the mounting plate 7, the timer 9 is set to be rectangular, a clamping groove 10 is arranged at the bottom of the timer 9, the clamping block 8 is in clamping connection with the clamping groove 10, a catheter 11 is fixed at the liquid outlet end of the catheter holder 1, a first sealing block 12 is fixed in the catheter holder 1, a second sealing block 13 is arranged on one side of the first sealing block 12, the one end that pipe seat 1 kept away from pipe 11 is provided with needle bush 14, the one end that needle bush 14 is close to pipe seat 1 is provided with inner sleeve 15, inner sleeve 15 nestification is in pipe seat 1, block between inner sleeve 15 and pipe seat 1, the inside of inner sleeve 15 is fixed with steel needle 16, steel needle 16 runs through second seal block 13, first seal block 12 and pipe 11 in proper order, the outside of needle bush 14 is fixed with holds needle handle 17, the lateral wall of pipe seat 1 is fixed with rubber tube connector 18, rubber tube connector 18 is connected with hose 2.

Further, in above-mentioned technical scheme, the quantity of fixture block 8 and draw-in groove 10 all is provided with four, four fixture block 8 is the rectangle and distributes on mounting panel 7, four draw-in groove 10 is the rectangle and distributes on the bottom surface of time-recorder 9, four fixture block 8 and four draw-in groove 10 phase-match has improved the stability of time-recorder 9 installation through four draw-in grooves 10 of time-recorder 9 bottom and four fixture block 8 looks joints on the mounting panel 7, is convenient for dismantle the time-recorder 9 simultaneously and gets off and disinfect, is convenient for the used repeatedly of time-recorder 9.

Further, in the above technical solution, a groove 19 is formed in an upper side edge of the timer 9, a timing start button 20 is disposed inside the groove 19, a reset button 21 is disposed on one side of the timing start button 20, and the timing start button 20 and the reset button 21 are mounted in the groove 19, so that the accidental touch of the button by the patient can be avoided.

The implementation mode is specifically as follows: be provided with time-recorder 9 on the malleation connects 3, can audio-visually demonstrate through time-recorder 9 timing and keep somewhere the time, can make medical personnel know the time of keeping somewhere the needle at the human body fast and accurately effectively, the security of use has been improved, medical personnel's the work degree of difficulty has been reduced, four draw-in grooves 10 through time-recorder 9 bottom and four fixture block 8 looks joints on the mounting panel 7, make time-recorder 9 simple to install, be convenient for dismantle timer 9 from malleation connects 3 simultaneously, can continue to use after the disinfection, the cost is reduced, timing start button 20 and reset button 21 on time-recorder 9 are all installed in recess 19, can avoid the unexpected touch button of patient, this embodiment has specifically solved existence among the prior art because keep somewhere the time long, often can not audio-visually record the problem of keeping somewhere the time.

As shown in fig. 2-4, in the above technical solution, a spring 22 is disposed inside the inner sleeve 15, the spring 22 is sleeved on the steel needle 16, a safety sleeve 23 is disposed at the tail end of the spring 22, the safety sleeve 23 is sleeved on the steel needle 16, a string 26 is disposed between the safety sleeve 23 and the spring 22, one end of the string 26 is fixedly connected with the safety sleeve 23, the other end of the string 26 is connected with the spring 22, a sliding hole is disposed in the middle of one side of the safety sleeve 23 away from the spring 22, a sliding connection is disposed between the steel needle 16 and the sliding hole, when the steel needle 16 on the needle hub 14 is taken off from the catheter hub 1, the safety sleeve 23 moves to the tip of the steel needle 16 under the elastic force of the spring 22, and the tip of the steel needle 16 is nested in the safety sleeve 23, so as to prevent the medical staff from being punctured, the safety performance is improved, the safety sleeve 23 is connected with the spring 22 through the string 26, the safety sleeve 23 can be prevented from being separated from the steel needle 16, and the protection effect of the safety sleeve 23 is guaranteed.

The implementation mode is specifically as follows: after the catheter 11 is driven to be inserted into a human body through the steel needle 16, the needle handle 17 is pulled to drive the needle bushing 14 to be separated from the catheter holder 1, the steel needle 16 is pulled out from the catheter holder 1 through the needle bushing 14, the safety sleeve 23 on the steel needle 16 moves to the tip of the steel needle 16 under the elastic action of the spring 22, the tip of the steel needle 16 is nested in the safety sleeve 23, medical workers can be prevented from being punctured, the safety performance is improved, the safety sleeve 23 is connected with the spring 22 through the thin rope 26, the safety sleeve 23 can be prevented from being separated from the steel needle 16, the protection effect of the safety sleeve 23 is guaranteed, and the problem that the medical workers are easily punctured after the steel needle exits from the catheter holder in the prior art is specifically solved through the implementation mode.

As shown in fig. 1-3, in the above technical solution, a backing plate 24 is disposed at the lower side of the rubber tube connector 18, the backing plate 24 is made of a silica gel material, the backing plate 24 is fixedly connected with the side wall of the catheter base 1, so that the contact area between the catheter base 1 and the hand of the patient is increased, the catheter base 1 is conveniently fixed on the hand of the patient, the catheter base 1 is firmly fixed, the rotation of the catheter base 1 during needle withdrawal can be avoided, and the injury to the hand of the patient is reduced.

Furthermore, in the above technical solution, the safety cap 25 is sleeved outside the catheter 11, so as to improve the safety of the safety indwelling needle when not in use.

Further, in the above technical scheme, the first sealing block 12 and the second sealing block 13 are made of rubber, so that the elasticity is good, the sealing performance is strong, and the leakage of the liquid medicine is avoided.

The implementation mode is specifically as follows: through having cup jointed the safety helmet 25 in the outside of pipe 11, the security when this safety indwelling needle does not use has been improved, the lateral wall fixedly connected with backing plate 24 of pipe seat 1, the area of contact between pipe seat 1 and patient's hand has been increased through backing plate 24, conveniently fix pipe seat 1 at patient's hand, it is firm to make pipe seat 1 fixed, be difficult for rotating, pipe seat 1 rotates when can avoiding moving back the needle, reduce the injury that leads to the fact patient's hand, first sealed piece 12 and second sealed piece 13 all adopt the rubber material processing to make, good elasticity, the leakproofness is strong, avoid the liquid medicine to leak, this embodiment has specifically solved the easy pivoted problem of atress after the pipe seat installation that exists among the prior art.

While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.

Claims

1. A safety indwelling needle for intravenous infusion, comprising a catheter hub (1), characterized in that: the pipe seat (1) is connected with the positive pressure joint (3) through a hose (2), a flow stopping clamp (4) is sleeved on the hose (2), a positive pressure valve (5) is installed on the positive pressure joint (3), a liquid inlet end of the positive pressure joint (3) is in threaded connection with an end cap (6), a mounting plate (7) is fixed on the side of the positive pressure joint (3), a clamping block (8) is fixed on the mounting plate (7), a timer (9) is installed on the upper side of the mounting plate (7), the timer (9) is arranged to be rectangular, a clamping groove (10) is formed in the bottom of the timer (9), the clamping block (8) and the clamping groove (10) are clamped, a pipe (11) is fixed at the liquid outlet end of the pipe seat (1), a first sealing block (12) is fixed inside the pipe seat (1), a second sealing block (13) is arranged on one side of the first sealing block (12), the one end that pipe (11) were kept away from in pipe seat (1) is provided with needle bush (14), the one end that needle bush (14) is close to pipe seat (1) is provided with inner skleeve (15), inner skleeve (15) nestification is in pipe seat (1), block between inner skleeve (15) and pipe seat (1), the inside of inner skleeve (15) is fixed with steel needle (16), steel needle (16) run through second seal block (13), first seal block (12) and pipe (11) in proper order, the outside of needle bush (14) is fixed with holds needle handle (17), the lateral wall of pipe seat (1) is fixed with rubber tube joint (18), rubber tube joint (18) are connected with hose (2).

2. A safety indwelling needle for intravenous fluid infusion, according to claim 1, wherein: the quantity of fixture block (8) and draw-in groove (10) all is provided with four, four fixture block (8) are the rectangle and distribute on mounting panel (7), four draw-in groove (10) are the rectangle and distribute on the bottom surface of time-recorder (9), four fixture block (8) and four draw-in groove (10) phase-match.

3. A safety indwelling needle for intravenous fluid infusion, according to claim 1, wherein: a groove (19) is formed in the edge of the upper side of the timer (9), a timing start button (20) is arranged inside the groove (19), and a reset button (21) is arranged on one side of the timing start button (20).

4. A safety indwelling needle for intravenous fluid infusion, according to claim 1, wherein: the inside of inner skleeve (15) is provided with spring (22), spring (22) cup joint on steel needle (16), the tail end of spring (22) is provided with safety sleeve (23), safety sleeve (23) cup joint on steel needle (16), be provided with string (26) between safety sleeve (23) and spring (22), the one end and the safety sleeve (23) fixed connection of string (26), the other end of string (26) is connected with spring (22), the centre of a side of spring (22) is kept away from in safety sleeve (23) has been seted up the slide opening, set up to sliding connection between steel needle (16) and the slide opening.

5. A safety indwelling needle for intravenous fluid infusion, according to claim 1, wherein: the lower side of the rubber pipe joint (18) is provided with a backing plate (24), the backing plate (24) is made of silica gel materials, and the backing plate (24) is fixedly connected with the side wall of the catheter seat (1).

6. A safety indwelling needle for intravenous fluid infusion, according to claim 1, wherein: a safety cap (25) is sleeved on the outer side of the guide pipe (11).

7. A safety indwelling needle for intravenous fluid infusion, according to claim 1, wherein: the first sealing block (12) and the second sealing block (13) are made of rubber materials.