CN213220001U - Puncture-proof back-inserting type disposable infusion needle - Google Patents

Abstract

The utility model discloses a prevent stabbing and return disposable infusion syringe needle of formula of inserting, including transfer line, syringe needle pipe and needle point, the one end through connection of transfer line has syringe needle pipe, just syringe needle pipe adopts interference fit's connected mode and fixed cup jointing of transfer line the fixed needle point that is provided with of the other end of syringe needle pipe, the other end sealing connection of transfer line has the joint stifled cap, and this transfer line is located the fixed protecting crust that has cup jointed in one end week that is close to the joint stifled cap, the protecting crust bottom is the arcwall face, and lies in and transversely offers the through hole of being connected with the transfer line cooperation in this protecting crust of one side near the arcwall face, seted up the cavity in the protecting crust, it has rubber protection piece to fix the bonding in this cavity, rubber protection piece is the rectangle structure. The puncture-proof return-insertion type disposable infusion needle is convenient for safe placement of a needle tube and a needle tip, is convenient for preventing the needle tip from sliding out, and achieves the effect of double protection.

Description

Puncture-proof back-inserting type disposable infusion needle

Technical Field

The utility model belongs to the technical field of disposable infusion syringe needle, concretely relates to prevent stabbing formula disposable infusion syringe needle of inserting back.

Background

The infusion needle is a common medical consumable, and is used for intravenous infusion by establishing a channel between a vein and liquid medicine after aseptic treatment. Generally, the infusion apparatus is formed by connecting eight parts, namely a vein needle or an injection needle, a needle head protective cap, an infusion hose, a liquid medicine filter, a flow rate regulator, a drip cup, a bottle stopper puncture outfit, an air filter and the like, and a part of the infusion apparatus also comprises an injection piece, a medicine adding port and the like.

The existing disposable needle head is not provided with a cap, so that after the needle is pulled out, the needle head does not have a position where the needle head can be properly placed, and the patient and medical care are easily injured by mistake.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a prevent stabbing formula disposable infusion syringe needle of inserting back to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a puncture-proof back-inserting type disposable infusion needle comprises an infusion tube, a needle tube and a needle tip;

one end of the infusion tube is connected with a needle tube in a penetrating way, the needle tube is fixedly sleeved with the infusion tube in an interference fit connection mode, and the other end of the needle tube is fixedly provided with a needle point;

the other end of the infusion tube is hermetically connected with a joint blocking cap, a protective shell is fixedly sleeved on the periphery of one end of the infusion tube, which is close to the joint blocking cap, the bottom end of the protective shell is an arc-shaped surface, and a through hole which is matched and connected with the infusion tube is transversely formed in the protective shell, which is positioned on one side close to the arc-shaped surface;

the utility model discloses a syringe needle pipe, including protective housing, syringe needle pipe, needle point, rubber protection piece, protective housing, rubber protection piece, the cavity has been seted up in the protective housing, and the fixed rubber protection piece that bonds has in this cavity, rubber protection piece is the rectangle structure the rectangle recess has transversely been seted up to the top end face intermediate position of rubber protection piece, and this rectangle recess sets up with syringe needle pipe and needle point cooperation respectively, one side of protective housing arcwall face dorsad.

Preferably, the syringe needle pipe week side integrated into one piece has the stationary blade, rubber protection piece one side just is located the rectangle recess and vertically has seted up the joint groove the rectangle recess other end extends and has seted up the needle point guard slot, just the sharp end of needle point uses with this needle point guard slot cooperation.

Preferably, a first semicircular notch is respectively formed in one side face, close to the joint plugging cap, of the protective shell and the protective cover, and a second semicircular notch is formed in the middle position of one side face of the protective shell.

Preferably, two sets of clamping columns are symmetrically arranged on one side of the protective cover, and two sets of clamping grooves matched and clamped with the clamping columns are symmetrically formed in one side of the top end face of the protective cover.

Preferably, the two groups of clamping columns are symmetrically and integrally formed with salient points on the peripheral sides, and notches matched with the salient points are formed in the two groups of clamping grooves.

The utility model discloses a technological effect and advantage: according to the puncture-proof back-inserting type disposable infusion needle, the needle tube and the needle point are inserted into the rectangular groove of the rubber protective block by arranging the protective shell, the rubber protective block, the rectangular groove and the protective cover, and the protective cover is turned over and closed; the needle tube is convenient to fix and prevent from falling off by arranging the fixing piece, the clamping groove and the needle point protection groove, wherein the fixing piece is arranged in the clamping groove, and the needle point is arranged in the needle point protection groove; the puncture-proof return-insertion type disposable infusion needle is convenient for safe placement of a needle tube and a needle tip, is convenient for preventing the needle tip from sliding out, and achieves the effect of double protection.

Drawings

FIG. 1 is a connection diagram of the infusion tube of the present invention;

FIG. 2 is a structural view of the protective shell of the present invention;

FIG. 3 is a cross-sectional view of the protective shell of the present invention;

fig. 4 is a partial sectional view of the protective shell of the present invention.

In the figure: 1 infusion tube, 2 needle tubes, 3 needle points, 4 fixing pieces, 5 joint blocking caps, 6 protective shells, 7 protective covers, 8 second semicircular notches, 9 through holes, 10 first semicircular notches, 11 rubber protective blocks, 12 rectangular grooves, 13 needle point protective grooves, 14 clamping grooves, 15 clamping columns and 16 convex points.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides a puncture-proof back-inserting type disposable transfusion needle head as shown in figures 1-4, which comprises a transfusion tube 1, a needle head tube 2 and a needle point 3;

one end of the infusion tube 1 is connected with a needle tube 2 in a penetrating way, the needle tube 2 is fixedly sleeved with the infusion tube 1 in an interference fit connection mode, and the other end of the needle tube 2 is fixedly provided with a needle point 3;

the other end of the infusion tube 1 is hermetically connected with a joint blocking cap 5, a protective shell 6 is fixedly sleeved on the periphery of one end of the infusion tube 1, which is close to the joint blocking cap 5, the bottom end of the protective shell 6 is an arc-shaped surface, a through hole 9 matched and connected with the infusion tube 1 is transversely formed in the protective shell 6, which is positioned on one side close to the arc-shaped surface, and the infusion tube 1 is fixedly bonded with the through hole 9 to prevent rotation;

the utility model discloses a syringe needle tube, including protective housing 6, rubber protection piece 11 is rectangular structure, rectangular groove 12 has transversely been seted up to rubber protection piece 11's top end face intermediate position, and this rectangular groove 12 sets up with syringe needle tube 2 and needle point 3 cooperation respectively, protective housing 6 articulates to one side of arcwall face dorsad has protective cover 7, and this protective cover 7 top is the arcwall face, inserts in rectangular groove 12 syringe needle tube 2 and needle point 3.

Specifically, 2 week sides integrated into one piece of syringe needle pipe have stationary blade 4, rubber protection piece 11 one side just is located rectangle recess 12 and vertically has seted up joint groove 14 the other end of rectangle recess 12 extends and has seted up needle point protective groove 13, just the sharp end of needle point 3 uses with this needle point protective groove 13 cooperation, and needle point protective groove 13 runs through with rectangle recess 12.

Specifically, protective housing 6 and protective cover 7 have been seted up first semicircle breach 10 respectively near the side that connects stifled cap 5 a second semicircle breach 8 has been seted up to the side intermediate position of protective housing 6, and two sets of first semicircle breaches 10 symmetries, and the centre gripping of the transfer line 1 of being convenient for is fixed, and opening of protective cover 7 is convenient for to second semicircle breach 8.

Specifically, protective cover 7 a side symmetry is provided with two sets of card posts 15, and protective housing 6's top face a side symmetry is seted up two sets of draw-in grooves of cooperating the joint with card post 15, and card post 15 cooperates with the draw-in groove, the closing of the protective cover 7 of being convenient for.

Specifically, two sets of card post 15 week side symmetry integrated into one piece has bump 16, and all set up in two sets of draw-in grooves with bump 16 complex notch, bump 16 and notch cooperation increase frictional force, prevent card post 15 roll-off.

The using method is that when the puncture-proof back-inserting type disposable infusion needle is used, the protective cover 7 is opened through the second semicircular notch 8, the used needle tube 2 and the needle tip 3 are inserted into the rectangular groove 12, the fixing piece 4 is arranged in the clamping groove 14, the needle tip 3 is arranged in the needle tip protective groove 13, the infusion tube 1 is arranged between the two groups of first semicircular notches 10, the protective cover 7 is closed, the clamping column 15 is matched with the clamping groove, the salient point 16 is matched with the notches, friction force is increased, the clamping column 15 is prevented from sliding out, and the infusion tube 1 is fixedly bonded with the through hole 9. The puncture-proof return-insertion type disposable infusion needle is convenient for safe placement of a needle tube and a needle tip, is convenient for preventing the needle tip from sliding out, and achieves the effect of double protection.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims (5)

1. A puncture-proof back-inserting type disposable infusion needle comprises an infusion tube (1), a needle tube (2) and a needle tip (3);

the method is characterized in that: one end of the infusion tube (1) is connected with a needle tube (2) in a penetrating way, the needle tube (2) is fixedly sleeved with the infusion tube (1) in an interference fit connection mode, and the other end of the needle tube (2) is fixedly provided with a needle point (3);

the other end of the infusion tube (1) is hermetically connected with a joint blocking cap (5), a protective shell (6) is fixedly sleeved on the periphery of one end, close to the joint blocking cap (5), of the infusion tube (1), the bottom end of the protective shell (6) is an arc-shaped surface, and a through hole (9) which is matched and connected with the infusion tube (1) is transversely formed in the protective shell (6) on one side, close to the arc-shaped surface;

the utility model discloses a syringe needle protection device, including protective housing (6), rubber protection piece (11) have been seted up to interior having seted up of protective housing (6), and the fixed rubber protection piece (11) that bonds in this cavity, rubber protection piece (11) are the rectangle structure rectangle recess (12) have transversely been seted up to the top end face intermediate position of rubber protection piece (11), and this rectangle recess (12) set up with syringe needle pipe (2) and needle point (3) cooperation respectively, protective housing (6) one side of arcwall face dorsad articulates there is protective cover (7), and this protective cover (7) top is the arcwall face.

2. The puncture-proof back-insert type disposable infusion needle of claim 1, characterized in that: syringe needle pipe (2) week side integrated into one piece has stationary blade (4), rubber protection piece (11) one side just is located rectangle recess (12) and vertically has seted up joint groove (14) rectangle recess (12) other end extends and has seted up needle point protecting groove (13), just the sharp end of needle point (3) uses with this needle point protecting groove (13) cooperation.

3. The puncture-proof back-insert type disposable infusion needle of claim 1, characterized in that: first semicircle breach (10) have been seted up respectively to protective housing (6) and protective cover (7) near the side that connects stifled cap (5) second semicircle breach (8) have been seted up to a side intermediate position of protective housing (6).

4. The puncture-proof back-insert type disposable infusion needle of claim 1, characterized in that: one side of the protective cover (7) is symmetrically provided with two sets of clamping columns (15), and one side of the top end of the protective shell (6) is symmetrically provided with two sets of clamping grooves matched and clamped with the clamping columns (15).

5. The anti-stab back-insert disposable infusion needle of claim 4, wherein: the clamping columns (15) are symmetrically and integrally formed with salient points (16) on the peripheral sides, and notches matched with the salient points (16) are formed in the two clamping grooves.

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