CN2635104Y

CN2635104Y - Safety type phleboclysis staying needle with wing

Info

Publication number: CN2635104Y
Application number: CN 03255528
Authority: CN
Inventors: 李军生
Original assignee: Shanghai Kangdelai Enterprise Development Group Co Ltd
Current assignee: Zhejiang Kindly Medical Devices Co Ltd
Priority date: 2003-07-11
Filing date: 2003-07-11
Publication date: 2004-08-25
Anticipated expiration: 2013-07-11

Abstract

A safety type phleboclysis staying needle with wing comprises a puncture needle component, a staying cannula component, a needle tip protecting cap and a safety protection shell. The puncture needle component comprises a puncture needle wing and a needle pipe of the puncture needle. The staying cannula component comprises a three-way base, a hose, a connector, a sealing part and a staying cannula. The safety protection shell is a pipe shell, the shell surface of the back end of the safety protection shell is provided with a locking slot for the root location of the puncture needle wing, and a guide slot starting from the front edge of the locking slot is arranged along the length direction of the safety protection shell; also: the front end of the safety protection shell is inserted into a first connector of the three-way base and the root of the puncture needle wing is arranged in the guide slot of the safety protection shell. The utility model is characterized in that the needle tip can be simultaneously shielded in the safety protection shell during the normal exit from the puncture needle pipe to realize the safety discarding and make the medical and nursing staff be protected from being infected with infectious diseases due to accidental needle sting. In addition, the utility model has a simple and compact structure as well as lower lost.

Description

A kind of safety venous transfusion remaining needle with the wing

Technical field

This utility model relates to a kind of disposable medical appliance, relates in particular to the safety venous transfusion remaining needle that uses on the clinical medicine.

Background technology

Existing venous transfusion remaining needle generally comprises puncture needle and the indwelling casing tube that is enclosed within on the puncture needle, is to utilize indwelling casing tube to carry out the venoclysis medicinal liquid to the patient.Because it is flexible that soft indwelling casing tube has, when indwelling casing tube placed vein, indwelling casing tube can be tortuous synchronously with vein, makes the injection site still can freely move, and do not have the anxiety of thorn perforating veins.Therefore, the venous transfusion remaining needle has more the safety of use, and the sense of discomfort when reducing the patient and using.

But this venous transfusion remaining needle is after puncture finishes, and the shielding of puncture needle becomes a big problem.

Though the venous transfusion remaining needle for certain structure has had effective shielding mode, for example, in application number is 9812703.2 Chinese invention patent application, mention a kind of multipurpose high-safety needle staying on vein for automatic infusion, comprise the Y-pipe joint, keep somewhere soft pin, draw point and tube for transfusion; Its first, second tip side axial alignment of Y-pipe joint, the nested rubber cap sleeve of second tip side; Keep somewhere soft pin and be nested in Y-pipe joint first tip side; The draw point sliding sleeve is in sleeve, and sleeve is nested in Y-pipe joint second tip side, and needle body axially places to be kept somewhere in the soft pin; Tube for transfusion serial connection Y-pipe joint the 3rd tip side, medicinal liquid injects in patient's body through keeping somewhere soft pin.After will keeping somewhere soft pin and thrusting patient's vein together with needle body, layback withdraw of the needle body behind the sleeve, making contracts in the needle body is snapped in the sleeve, can avoid needle body to expose thorn takes place injuring infection etc., and can finish injecting program calmly.

But, at the venous transfusion remaining needle of the normally used band wing clinically, still do not find a kind of method of effectively avoiding its needle body to expose, thereby medical personnel are subjected to needle stick injury easily and catch when cleaning or discarded this remaining needle.Especially the used puncture needle of infected patient (for example: hepatitis, AIDS VICTIMS) is stabbed, and consequence is hardly imaginable.

Therefore, for the venous transfusion remaining needle of the band wing, people wait the generation of contingent always at effective screen method of seeking energetically after its puncture needle uses to avoid the mistake puncture.

The utility model content

The purpose of this utility model is to provide a kind of safety venous transfusion remaining needle with the wing, makes puncture needle obtain shielding synchronously from indwelling casing tube withdraws from, and prevents that fundamentally medical personnel are punctured the generation that acupuncture injures the incident of catching.

A kind of safety venous transfusion remaining needle provided by the utility model with the wing, comprise puncture needle assembly, indwelling casing tube assembly and needle point helmet, wherein: the puncture needle assembly comprise puncture needle wings and puncture needle tubing, and the afterbody of this needle tubing is fixed on the root of fin; The indwelling casing tube assembly comprises threeway seat, flexible pipe, joint, sealing member and indwelling casing tube, and wherein: described sealing member is fixed in first interface of described threeway seat; First, second interface of described threeway seat is axially to connect, built-in puncture needle assembly, and described puncture needle tubing passes the sealing part, stretches out in outside second interface of threeway seat; One end of described flexible pipe connects described joint, the 3rd interface socket of the other end and described threeway seat; Described indwelling casing tube is sleeved on the described puncture needle tubing; It is characterized in that: it also comprises a safeguard protection shell; This safeguard protection shell is a tubular shell, its length is greater than the length of described puncture needle assembly, and on the shell face of this safeguard protection shell rear end, have one, and link to each other with this locked groove and extend to the guiding conduit of its end along described safeguard protection shell length direction for puncture needle wings root localized locked groove; Again, the front end of described safeguard protection shell is plugged on first interface of described threeway seat, and the root of described puncture needle wings is mediated with the guiding conduit of described safeguard protection shell movably.

The safety venous transfusion remaining needle of the above-mentioned band wing, wherein: have a radial fins that fuses with outside wall surface at threeway seat first interface, this fin and described puncture needle wings are superposed state.

The safety venous transfusion remaining needle of the above-mentioned band wing, wherein: first seam at the threeway seat is provided with at least one draw-in groove, and is provided with the buckle that matches with this draw-in groove at corresponding each draw-in groove of front end of described safeguard protection shell.

The safety venous transfusion remaining needle of the above-mentioned band wing, wherein: the needle tubing of puncture needle assembly is having at least one side opening near needle tip.

The safety venous transfusion remaining needle of the above-mentioned band wing, wherein: the front port of safeguard protection shell is one to form the angular cut of a lowest point by preceding receding, and the lowest point of this angular cut falls on the guiding conduit of described safeguard protection shell.

The safety venous transfusion remaining needle of the above-mentioned band wing, wherein: the indwelling casing tube assembly comprises that also one is clipped in the pipe clamp on the flexible pipe.

Owing to adopted above-mentioned technical solution, in the process that withdraws from the puncture needle tubing normally synchronously with the needle point shielding in the safeguard protection shell, realize that safety abandons, make medical personnel avoid unexpected acupuncture and infect infectious disease.In addition, this utility model is simple in structure, compact, and cost is lower.

Description of drawings

Fig. 1 is the structural representation of the safety venous transfusion remaining needle of this utility model band wing;

Fig. 2 is the structural representation of indwelling casing tube assembly of the present utility model;

Fig. 3 finishes the structure cut-away view that puncture needle tubing is shielded after puncture needle assembly of the present utility model is retracted into the safeguard protection shell;

Fig. 4 is the structural representation of safeguard protection shell of the present utility model.

The specific embodiment

As shown in Figure 1, this utility model, promptly a kind of safety venous transfusion remaining needle with the wing is made up of indwelling casing tube assembly 1, safeguard protection shell 2, puncture needle assembly 3 and needle point helmet 4.

As shown in Figure 3, puncture needle assembly 3 comprises puncture needle wings 31 and puncture needle tubing 32, and the afterbody of this needle tubing 32 is bonded on the root of fin 31, and needle tubing is having at least one side opening (not looking among the figure) near needle tip.

Referring to Fig. 1, shown in Figure 2, indwelling casing tube assembly 1 comprises threeway seat 14, flexible pipe 13, joint 11, sealing member 16, indwelling casing tube 15 and is clipped in pipe clamp 12 on the flexible pipe 13.

Sealing member 16 is fixed in first interface 141 of threeway seat.

First, second interface 141,142 of threeway seat 14 is axially to connect, built-in puncture needle assembly 3, and puncture needle tubing 32 passes sealing member 16, stretches out in outside second interface 142 of threeway seat 14.

A fixedly connected fin 145 on the outside wall surface of threeway seat first interface 141, this fin 145 is superposed state with puncture needle wings 31.

One end jointing 11 of flexible pipe 13, the 3rd interface 143 sockets of the other end and threeway seat 14.

Indwelling casing tube 15 is sleeved on the puncture needle tubing 32.

As shown in Figure 4; safeguard protection shell 2 is tubular shells; its length is greater than the length of puncture needle assembly 3; and on the shell face of this safeguard protection shell rear end, have one, and cut guiding conduit 21 from initial Yan'an, the forward position of this locked groove 22 all risk insurance protective case 2 length directions for the localized locked groove 22 of puncture needle wings 31 roots.The front port of safeguard protection shell 2 is one by preceding sweptback angular cut 23, and this angular cut 23 forms a lowest point, and the lowest point of this angular cut falls on the guiding conduit 21 of safeguard protection shell.

Referring to Fig. 1; the front end of safeguard protection shell 2 is plugged on first interface 141 of threeway seat 14; that is: be provided with at least one draw-in groove 144 at first interface, 141 places of threeway seat; and corresponding each draw-in groove 144 of front end at safeguard protection shell 2 is provided with the buckle (not looking among the figure) that matches with this draw-in groove 144, is undertaken fixedly connected by buckle.The root of puncture needle wings 31 drops in the guiding conduit 21 of safeguard protection shell 2.

This utility model venous transfusion remaining needle is connected with other medicine machine by joint 11.During use, pull out needle point helmet 4, pinch puncture needle wings 31 and the threeway seat fin 145 that stacks, the puncture needle 32 that is with indwelling casing tube 15 is thrust vein, will push away before the indwelling casing tube assembly 1 then, promote indwelling casing tube 15 and insert vein with hands.Then; puncture needle 32 withdraws from indwelling casing tube 15 backward; and from sealing member 16, extract out, puncture needle wings 31 enters the angular cut 23 of safeguard protection shell, and guiding conduit 21; and continue to draw back; until the locked groove 22 that enters the safeguard protection shell, the root of puncture needle wings 31 can fix in locked groove 22, and locked groove 22 prevention puncture needle wings 31 forward end again move; again safeguard protection shell 2 is withdrawed from from the draw-in groove 144 of threeway seat at last, thereby the safety that realizes puncture needle assembly 3 abandons.In addition, the threeway seat 14 on this utility model indwelling casing tube assembly 1 is band wings, not only when puncture, makes things convenient for medical personnel to pinch, and can strengthen in infusion process and the contacting of patient skin, and is fixing easily.

Claims

1, a kind of safety venous transfusion remaining needle with the wing comprises puncture needle assembly (3), indwelling casing tube assembly (1) and needle point helmet (4), wherein:

Puncture needle assembly (3) comprise puncture needle wings (31) and puncture needle tubing (32), and the afterbody of this needle tubing (32) is fixed on the root of fin (31);

Indwelling casing tube assembly (1) comprises threeway seat (14), flexible pipe (13), joint (11), sealing member (16) and indwelling casing tube (15), and wherein: described sealing member (16) is fixed in first interface 1 (141) of described threeway seat; First, second interface of described threeway seat (14) (141,142) is axially to connect, built-in puncture needle assembly (3), and described puncture needle tubing (32) passes sealing part (16), stretches out in outside second interface (142) of threeway seat (14); One end of described flexible pipe (13) connects described joint (11), the 3rd interface (143) socket of the other end and described threeway seat (14); Described indwelling casing tube (15) is sleeved on the described puncture needle tubing (32);

It is characterized in that:

It also comprises a safeguard protection shell (2);

This safeguard protection shell (2) is a tubular shell, its length is greater than the length of described puncture needle assembly (3), and have one for the localized locked groove of puncture needle wings (31) root (22) on the shell face of this safeguard protection shell rear end, and one links to each other with this locked groove (22) and extends to the guiding conduit (21) of its end along described safeguard protection shell (2) length direction; Again,

The front end of described safeguard protection shell (2) is plugged on first interface (141) of described threeway seat, the root of described puncture needle wings (31) can move axially with guiding conduit (21) engagement of described safeguard protection shell (2).

2, a kind of safety venous transfusion remaining needle according to claim 1 with the wing, it is characterized in that: connect (141) at described threeway seat first and have a radial fins (145) that fuses with outside wall surface, this fin (145) is superposed state with described puncture needle wings (31).

3, a kind of safety venous transfusion remaining needle according to claim 1 and 2 with the wing; it is characterized in that: first seam at described threeway seat (14) is provided with at least one draw-in groove (144), and is provided with the buckle that matches with this draw-in groove (144) at corresponding each draw-in groove of front end (144) of described safeguard protection shell (2).

4, a kind of safety venous transfusion remaining needle with the wing according to claim 1 and 2 is characterized in that, the needle tubing of described puncture needle assembly (3) is having at least one side opening near needle tip.

5, a kind of safety venous transfusion remaining needle according to claim 1 and 2 with the wing; it is characterized in that: the front port of described safeguard protection shell (2) is an angular cut (23) that forms a lowest point by preceding receding, and the lowest point of this angular cut falls on the guiding conduit (21) of described safeguard protection shell.

6, a kind of safety venous transfusion remaining needle with the wing according to claim 1 and 2 is characterized in that: described indwelling casing tube assembly (1) comprises that also one is clipped in the pipe clamp (12) on the flexible pipe (13).