CN209137597U - A kind of indwelling needle device of anti-return blood - Google Patents

Abstract

A kind of indwelling needle device of anti-return blood, remaining needle shell is that the integrally formed composition of round estrade pipe is arranged in cylindrical pipe top, sealing plate is arranged in round estrade tube top end, preformed hole setting Injector Bushing is corresponded on sealing plate, protective case is arranged in the periphery of Injector Bushing, it is correspondingly arranged at the upper side of one end of perfusion tube and the cylindrical pipe of remaining needle shell, pedestal is arranged in the lower section of remaining needle shell, the cylindrical fixing seat of the upper surface middle part setting of pedestal, the upper surface center of fixing seat is vertically arranged indwelling needle, handle is arranged in the bottom side of pedestal, from top to bottom successively sealed set anti-blood back cushion block in the cylindrical pipe cavity of remaining needle shell, second seal block and the first seal block, the inclined infusion channel of interior setting of anti-blood back cushion block, control switch is set in the middle part of anti-blood back cushion block periphery wall, in the cylindrical pipe of remaining needle shell Limiting slot is arranged in corresponding control switch, and control switch left and right activity in limiting slot, the utility model structure is simple, easy to use.

Description

A kind of indwelling needle device of anti-return blood

Technical field

The utility model relates to medical instruments field, especially a kind of indwelling needle device of anti-return blood.

Background technique

Currently, the use of remaining needle can be reduced infant due to venipuncture repeatedly caused by pain and to the fear having an injection Sense, mitigates the impatience of patient, is convenient for clinical application, and anxious, critical patient rescue medication mitigates the workload of nurse, subtracts Few patient pain, thus venous detaining needle is in wide clinical application, but there are some patientss to be easy to produce when using remaining needle The phenomenon that blood back, blood return phenomenon Producing reason be it is diversified, still, generate blood back after, can not only give medical staff Increase extra workload, and be that patient can be allowed to generate panic psychology again, is unfavorable for the rehabilitation of patient, therefore how to solve Remaining needle is easy the problem of blood back, becomes insoluble technical problem for a long time.

In view of the foregoing, existing indwelling needle device needs to improve.

Utility model content

The purpose of this utility model is to overcome deficiencies in the prior art, are easy to produce back when solving using remaining needle The problem of the phenomenon that blood causes patient to generate panic psychology, is unfavorable for the rehabilitation of patient, provides a kind of indwelling of anti-return blood Needle device, the utility model has the advantages of simple structure, easy to use, easy to operate, and anti-blood back effect is good.

The utility model to achieve the goals above, adopts the following technical scheme that a kind of indwelling needle device of anti-return blood, Be by pedestal, it is handle, fixing seat, remaining needle shell, limiting slot, indwelling needle, Injector Bushing, first seal block, second close Packing block, anti-blood back cushion block, infusion channel, control switch, perfusion tube, protective case are constituted；Remaining needle shell is cylindrical body tube top Sealing plate is arranged in the end setting integrally formed composition of round estrade pipe, round estrade tube top end, and the center setting of the sealing plate is pre- It boxes out, preformed hole is corresponded on sealing plate and is vertically arranged Injector Bushing, Injector Bushing is communicated with the round estrade pipe, Injector Bushing Protective case is arranged in periphery, is correspondingly arranged at the upper side of one end of perfusion tube and the cylindrical pipe of remaining needle shell, the sky of perfusion tube The cylindrical pipe cavity of chamber and remaining needle shell is interconnected, the lower section setting pedestal of remaining needle shell, in the upper surface of pedestal The cylindrical fixing seat of portion's setting, the periphery of fixing seat fitting corresponding with the cylindrical pipe bottom interior wall of remaining needle shell, fixation The upper surface center of seat is vertically arranged indwelling needle, and handle, the pedestal, handle and fixing seat one is arranged in the bottom side of pedestal Body forming；

From top to bottom successively sealed set anti-blood back cushion block, the second seal block in the cylindrical pipe cavity of remaining needle shell With the first seal block, preset clearance between anti-blood back cushion block and the second seal block, the second seal block and the first gasket Preset clearance between block, when unused state, the top of the indwelling needle sequentially passes through the center of circle of the first seal block, second The center of circle of seal block and the center of circle of anti-blood back cushion block are located in Injector Bushing, and the inclined infusion of the interior setting of anti-blood back cushion block is logical Control switch is arranged in road, anti-blood back cushion block periphery wall middle part, and control switch setting limit is corresponded in the cylindrical pipe of remaining needle shell Position slot, control switch left and right activity in limiting slot, anti-blood back cushion block pass through control switch in the cylindrical pipe of remaining needle shell Cavity in rotation, the cavity of the round estrade pipe of the upper end and remaining needle shell of infusion channel communicates, and control switch, which is located at, to be limited When the right end of slot, the lower end aligned perfusion tube of infusion channel makes the circle of the cavity and infusion channel, remaining needle shell in perfusion tube The cavity of cylinder pipe communicates, when control switch is located at the left end of limiting slot, the circle of the lower end aligned remaining needle shell of infusion channel Cylinder inside pipe wall upper end is not communicated with the cavity of cavity and the cylindrical pipe of remaining needle shell in perfusion tube.

The anti-blood back cushion block, the second seal block and the first seal block are cylindrical body knot made of rubber or silica gel Structure.

Two access tube heads are arranged in the other end of the perfusion tube.

The protective case is plastic conduit.

The Injector Bushing is hollow hoses.

Working principle: when the utility model is used, first extracing protective case, remaining needle shell of then holding with a firm grip, and will It is intravenous that indwelling needle penetrates patient, at this time extracts indwelling needle by pedestal and fixing seat, leaves Injector Bushing, remaining needle Shell and perfusion tube stir the right end of control switch to limiting slot when patient needs medication first, at this time under infusion channel End alignment perfusion tube, the cavity of the round estrade pipe of the upper end and remaining needle shell of infusion channel communicate, and liquid passes sequentially through infusion Pipe, the round estrade pipe of cavity remaining needle shell of infusion channel, Injector Bushing enter patient's body, when complete infusion work with Afterwards, control switch is moved at this time to the left end of limiting slot, on the cylindrical pipe inner wall of the lower end aligned remaining needle shell of infusion channel End, is not communicated with perfusion tube and the cylindrical pipe of remaining needle shell, then can play the role of anti-return blood.

The beneficial effects of the utility model are: the utility model has the advantages of simple structure, and it is ingenious in design, it is easy to use, it is more convenient It is used in medical staff or sufferers themselves, solves the phenomenon that some patientss are easy to produce blood back when using remaining needle, pole The workload of medical staff is alleviated greatly.

Detailed description of the invention

The utility model is described in further detail with reference to the accompanying drawing:

Unused state structural schematic diagram when Fig. 1；

Fig. 2 is indwelling needle and Injector Bushing disengaged position structural schematic diagram；

Fig. 1, in 2: pedestal 1, handle 1-1, fixing seat 1-2, remaining needle shell 2, limiting slot 2-1, indwelling needle 3, indwelling Needle guard 4, the first seal block 5, the second seal block 6, anti-blood back cushion block 7, infusion channel 7-1, control switch 8, perfusion tube 9, Protective case 10.

Specific embodiment

The utility model is described in further detail with specific embodiment with reference to the accompanying drawing:

Remaining needle shell 2 is that the integrally formed composition of round estrade pipe is arranged in cylindrical pipe top, and round estrade tube top end is set Sealing plate is set, the center of the sealing plate is arranged preformed hole, corresponds to preformed hole on sealing plate and be vertically arranged Injector Bushing 4, indwelling Needle guard 4 is communicated with the round estrade pipe, and protective case 10, one end of perfusion tube 9 and remaining needle shell is arranged in the periphery of Injector Bushing 4 It being correspondingly arranged at the upper side of 2 cylindrical pipe, the cavity of perfusion tube 9 and the cylindrical pipe cavity of remaining needle shell 2 are interconnected, Pedestal 1 is arranged in the lower section of remaining needle shell 2, and cylindrical fixing seat 1-2 is arranged in the upper surface middle part of pedestal 1, fixing seat 1-2's Periphery fitting corresponding with the cylindrical pipe bottom interior wall of remaining needle shell 2, the upper surface center of fixing seat 1-2 is vertically arranged indwelling Handle 1-1 is arranged in the bottom side of syringe needle 3, pedestal 1, and the pedestal 1, handle 1-1 and fixing seat 1-2 are integrally formed；

From top to bottom successively sealed set anti-blood back cushion block 7, the second gasket in the cylindrical pipe cavity of remaining needle shell 2 Block 6 and the first seal block 5, preset clearance between anti-blood back cushion block 7 and the second seal block 6, the second seal block 6 and first Preset clearance between seal block 5, when unused state, the top of the indwelling needle 3 sequentially passes through the first seal block 5 The center of circle in the center of circle, the center of circle of the second seal block 6 and anti-blood back cushion block 7 is located in Injector Bushing 4, sets in anti-blood back cushion block 7 Inclined infusion channel 7-1 is set, control switch 8, the cylindrical pipe of remaining needle shell 2 are set in the middle part of 7 periphery wall of anti-blood back cushion block Limiting slot 2-1 is arranged in upper corresponding control switch 8, and control switch 8 left and right activity, anti-blood back cushion block 7 in limiting slot 2-1 pass through control System switch 8 rotates in the cavity of the cylindrical pipe of remaining needle shell 2, the upper end of infusion channel 7-1 and the circle of remaining needle shell 2 The cavity of stage body pipe communicates, when control switch 8 is located at the right end of limiting slot 2-1, the lower end aligned perfusion tube 9 of infusion channel 7-1, Communicate the cavity in perfusion tube 9 with the cavity of the cylindrical pipe of infusion channel 7-1, remaining needle shell 2, control switch 8 is located at When the left end of limiting slot 2-1, the cylindrical pipe inner wall upper end of the lower end aligned remaining needle shell 2 of infusion channel 7-1 makes perfusion tube The cavity of cavity and the cylindrical pipe of remaining needle shell 2 in 9 is not communicated with.

The anti-blood back cushion block 7, the second seal block 6 and the first seal block 5 are cylinder made of rubber or silica gel Body structure.

Two access tube heads are arranged in the other end of the perfusion tube 9.

The protective case 10 is plastic conduit.

The Injector Bushing 4 is hollow hoses.

Claims (5)

1. It is by pedestal (1), handle (1-1), fixing seat (1-2), remaining needle shell 1. a kind of indwelling needle device of anti-return blood (2), limiting slot (2-1), indwelling needle (3), Injector Bushing (4), the first seal block (5), the second seal block (6), prevent back Blood cushion block (7), infusion channel (7-1), control switch (8), perfusion tube (9), protective case (10) are constituted；It is characterized by: indwelling Needle shell (2) is that the integrally formed composition of round estrade pipe is arranged in cylindrical pipe top, and sealing plate, institute is arranged in round estrade tube top end The center setting preformed hole for stating sealing plate, correspond to preformed hole on sealing plate and is vertically arranged Injector Bushing (4), Injector Bushing (4) and The round estrade pipe communicates, and protective case (10) are arranged in the periphery of Injector Bushing (4), one end of perfusion tube (9) and remaining needle shell (2) it is correspondingly arranged at the upper side of cylindrical pipe, the cylindrical pipe cavity phase of the cavity and remaining needle shell (2) of perfusion tube (9) Intercommunicated, pedestal (1) is arranged in the lower section of remaining needle shell (2), the cylindrical fixing seat of the upper surface middle part setting of pedestal (1) (1-2), the periphery of fixing seat (1-2) fitting corresponding with the cylindrical pipe bottom interior wall of remaining needle shell (2), fixing seat (1-2) Upper surface center be vertically arranged indwelling needle (3), handle (1-1) is arranged in the bottom side of pedestal (1), the pedestal (1), Hand (1-1) and fixing seat (1-2) are integrally formed；

   From top to bottom successively sealed set anti-blood back cushion block (7), the second gasket in the cylindrical pipe cavity of remaining needle shell (2) Block (6) and the first seal block (5), preset clearance between anti-blood back cushion block (7) and the second seal block (6), the second gasket Preset clearance between block (6) and the first seal block (5), when unused state, the top of the indwelling needle (3) is sequentially passed through The center of circle in the center of circle of the first seal block (5), the center of circle of the second seal block (6) and anti-blood back cushion block (7) is located at Injector Bushing (4) in, the inclined infusion channel of interior setting (7-1) of anti-blood back cushion block (7), the setting control of anti-blood back cushion block (7) periphery wall middle part System switchs (8), and control switch (8) setting limiting slot (2-1), control switch (8) are corresponded in the cylindrical pipe of remaining needle shell (2) The left and right activity in limiting slot (2-1), cylindrical pipe of the anti-blood back cushion block (7) by control switch (8) in remaining needle shell (2) Cavity in rotation, the upper end of infusion channel (7-1) communicates with the cavity of the round estrade pipe of remaining needle shell (2), control switch (8) when being located at the right end of limiting slot (2-1), the lower end aligned perfusion tube (9) of infusion channel (7-1) makes the sky in perfusion tube (9) Chamber is communicated with the cavity of infusion channel (7-1), the cylindrical pipe of remaining needle shell (2), and control switch (8) is located at limiting slot (2- 1) when left end, the cylindrical pipe inner wall upper end of the lower end aligned remaining needle shell (2) of infusion channel (7-1) makes perfusion tube (9) Interior cavity and the cavity of the cylindrical pipe of remaining needle shell (2) are not communicated with.
2. 2. a kind of indwelling needle device of anti-return blood according to claim 1, it is characterised in that: the anti-blood back cushion block (7), the second seal block (6) and the first seal block (5) are cylindrical structure made of rubber or silica gel.
3. 3. a kind of indwelling needle device of anti-return blood according to claim 1, it is characterised in that: the perfusion tube (9) Two access tube heads are arranged in the other end.
4. 4. a kind of indwelling needle device of anti-return blood according to claim 1, it is characterised in that: the protective case (10) is Plastic conduit.
5. 5. a kind of indwelling needle device of anti-return blood according to claim 1, it is characterised in that: the Injector Bushing (4) For hollow hoses.