CN206239820U

CN206239820U - Single use intravenous infusion needle

Info

Publication number: CN206239820U
Application number: CN201620874781.1U
Authority: CN
Inventors: 王翠辉
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-08-12
Filing date: 2016-08-12
Publication date: 2017-06-13
Anticipated expiration: 2026-08-12

Abstract

The utility model is related to a kind of single use intravenous infusion needle, including needle tubing, needle stand, syringe needle, needle handle, joint, and needle handle is single-blade needle handle, it is characterised in that：Needle stand outer sheath is equipped with the combined type needle cap in syringe needle is included in, combined type needle cap is made up of inner sleeve and overcoat, the length of inner sleeve is more than overcoat, the outer circumferential walls of inner sleeve are provided with by upper end to the U-shaped gap near lower end, needle handle through U-shaped gap it is exposed outside and needle handle root be located at U-shaped gap in bottom, in the outer circumferential walls of inner sleeve of the outer sheath covers above needle handle root, the position of inner sleeve correspondence overcoat is provided with external screw thread, it is arranged with the internal thread being connected with external screw thread outward, the outer circumferential walls of overcoat are provided with the elongated gap of linear pattern from top to bottom, the elongated gap of linear pattern and U-shaped gap are staggeredly located in a circumferential direction.It is its simple structure, safe and reliable, not only avoid syringe needle hurt sb.'s feelings and doctors and patients between there is cross-infection situation occur, and be also prevented from needle cap and lose to press against sick and wounded people.

Description

Single use intravenous infusion needle

Technical field

The utility model is related to medicine equipment, particularly a kind of single use intravenous infusion needle.

Background technology

Existing single use intravenous infusion needle is by needle tubing, the needle stand located at needle tubing one end, the pin located at needle stand front end Head, the needle handle on needle stand outer peripheral face, located at the needle tubing other end for the joint, the spiral-lock that are connected with transfusion device in outside syringe needle The needle cap composition of side, there are the following problems for it：When the 1st, using, the needle cap on the outside of syringe needle need to be taken and be injected intravenously, but root Needle cap can not be placed on syringe needle outside again after completing venous transfusion according to working specification, to avoid needlestick injuries finger from causing infection, But syringe needle is exposed outside, the treatment work to syringe needle brings inconvenience, and it is often the case that nurse completes defeated for patient Need for a whole set of infusion apparatus to bring back to nurse station unification after liquid and reclaim, there is potential safety hazard during this；2nd, needle cap small volume, and It is Split type structure with syringe needle and needle tubing, needle cap is easily lost after being removed, when needle cap is lost in patient's bed by nurse's imprudence When upper, easily home-bound patient was caused to press against wound.

The content of the invention

The purpose of this utility model is to provide for a kind of simple structure for solving the above problems, safe and reliable disposable Using intravenous infusion needle, not only avoid syringe needle hurt sb.'s feelings and doctors and patients between there is cross-infection situation occur, and be also prevented from Needle cap is lost and presses against sick and wounded people.

The technical solution of the utility model is：

A kind of single use intravenous infusion needle, including needle tubing, the needle stand located at needle tubing one end, the pin located at needle stand front end Head, the needle handle on needle stand outer peripheral face, located at the needle tubing other end for the joint that is connected with transfusion device, the needle handle is single Wing needle handle, it is characterised in that：The needle stand outer sheath is equipped with the combined type needle cap in syringe needle is included in, the combined type needle cap It is made up of inner sleeve and overcoat, the length of the inner sleeve is more than overcoat, the outer circumferential walls of the inner sleeve are provided with by upper end to being close to The U-shaped gap of lower end, the needle handle is exposed outside and needle handle root is located at the bottom in U-shaped gap through U-shaped gap, described outer Set is wrapped in the outer circumferential walls of the inner sleeve above needle handle root, and the position of the inner sleeve correspondence overcoat is provided with external screw thread, described Outer to be arranged with the internal thread being connected with external screw thread, the linear pattern that the outer circumferential walls of the overcoat are provided with from top to bottom is elongated open-minded Mouthful, the elongated gap of linear pattern and U-shaped gap are staggeredly located in a circumferential direction, it is described in put and be respectively equipped with limitation overcoat axle To the upper and lower limited block of displacement.

Above-mentioned single use intravenous infusion needle, the U-shaped gap, the width of the elongated gap of linear pattern are equal to or more than The thickness of needle handle root.

Above-mentioned single use intravenous infusion needle, is respectively arranged at two ends with inner concavity arc and lacks at the top of the U-shaped gap Mouthful, fallen into U-shaped gap in order to needle handle root.

Above-mentioned single use intravenous infusion needle, the upper and lower limited block is respectively located at inner sleeve away from U-shaped gap side Arc-shaped limit plate.

Above-mentioned single use intravenous infusion needle, the U-shaped gap and the elongated gap of linear pattern phase in a circumferential direction Differ from 180 °.

Above-mentioned single use intravenous infusion needle, the internal diameter of the inner sleeve is equal with the external diameter of needle tubing.

The beneficial effects of the utility model are：

When the 1st, using, rotary sleeve makes the elongated gap of the linear pattern of overcoat be overlapped with the U-shaped gap of inner sleeve, so as to release right The axial limiting of needle handle, combined type needle cap is released by needle handle, and needle stand and syringe needle are exposed outside, carry out transfusion injection；Transfusion is completed Afterwards, push combined type needle cap to needle stand and needle position, be again included needle stand and syringe needle, then rotary sleeve, make outer The elongated gap of linear pattern of set is staggered again in a circumferential direction with the U-shaped gap of inner sleeve, then formed to needle stand and syringe needle 360 ° of omnibearing protections, it is to avoid syringe needle hurt sb.'s feelings and doctors and patients between there is cross-infection situation occur, it is safe and reliable.

2nd, because interior putting is respectively equipped with the upper and lower limited block that limitation overcoat moves axially distance, then ensure that overcoat Linear pattern elongated gap accurate positioning, while prevent overcoat to be separated with inner sleeve to cause to lose, it is to avoid press against sick and wounded people.

3rd, combined type needle cap is connected together in needle injection and infusion process with needle tubing, it is therefore prevented that needle cap is lost and presses against wound Patient.

Brief description of the drawings

Fig. 1 is structural representation of the present utility model；

Fig. 2 is the left view of Fig. 1；

Fig. 3 is the right view of Fig. 1；

Fig. 4 be in Fig. 3 A-A to profile；

Fig. 5 is the structural representation of 180 ° of overcoat rotation in Fig. 3；

Fig. 6 is B-B direction profile in Fig. 5；

Fig. 7 is the structural representation that needle handle in Fig. 5 is released combined type needle cap.

In figure：1. needle tubing, 2. inner sleeve, 3. lower position block, 4. overcoat, 5. upper limit position block, 6. inner concavity arc notch, 7. pin The elongated gap of handle, 8. linear pattern, 9. external screw thread, 10.U types gap, 11. syringe needles, 12. needle stands.

Specific embodiment

As shown in Fig. 1-Fig. 7, the single use intravenous infusion needle, including needle tubing 1, the needle stand 12 located at the one end of needle tubing 1, Syringe needle 11 located at the front end of needle stand 12, the needle handle 7 on the outer peripheral face of needle stand 12, located at the other end of needle tubing 1 for transfusion The joint (being omitted in figure) of device connection, the needle handle 7 is single-blade needle handle, and the outer sheath of the needle stand 12 is equipped with and is included in syringe needle 11 Interior combined type needle cap.

The combined type needle cap is made up of inner sleeve 2 and overcoat 4, and the length of the inner sleeve 2 is more than overcoat 4, the inner sleeve 2 Outer circumferential walls are provided with by upper end to the U-shaped gap 10 near lower end, and the needle handle 7 is exposed outside and pin through U-shaped gap 10 Tang portion is located at the bottom in U-shaped gap 10, and the overcoat 4 is wrapped in the outer circumferential walls of the inner sleeve 2 above needle handle root, institute The position for stating the correspondence overcoat 4 of inner sleeve 2 is provided with external screw thread 9, and the overcoat 4 is provided with the internal thread being connected with external screw thread 9, the overcoat 4 outer circumferential walls are provided with the elongated gap 8 of linear pattern from top to bottom, in a circumferential direction the elongated gap 8 of linear pattern and it is U-shaped slit Mouthfuls 10 are staggeredly located, and in the present embodiment, the U-shaped gap 10 and the elongated gap 8 of linear pattern differ 180 ° in a circumferential direction. The upper and lower limited block 5,3 that limitation overcoat 4 moves axially distance, 5,3 points of the upper and lower limited block are respectively equipped with the inner sleeve 2 It is not the arc-shaped limit plate located at inner sleeve 2 away from the side of U-shaped gap 10.When U-shaped gap 10 and the elongated gap 8 of linear pattern are in circumference side When differing 180 ° upwards, the lower surface of overcoat 4 contacts with lower position block 3, when U-shaped gap 10 and the elongated gap 8 of linear pattern are in circle When being overlapped in circumferential direction, the upper surface of overcoat 4 contacts with upper limit position block 5.

The top of the U-shaped gap 10 is respectively arranged at two ends with inner concavity arc notch 6, is fallen into order to needle handle root U-shaped In gap 10.The width of the elongated gap 8 of U-shaped gap 10, linear pattern is equal to or more than the thickness of needle handle root.The present embodiment In, the width of the elongated gap 8 of the width of U-shaped gap 10, linear pattern and the thickness of needle handle root are equal.The internal diameter of the inner sleeve 2 External diameter with needle tubing 1 is equal.

Claims

1. a kind of single use intravenous infusion needle, including needle tubing, the needle stand located at needle tubing one end, the pin located at needle stand front end Head, the needle handle on needle stand outer peripheral face, located at the needle tubing other end for the joint that is connected with transfusion device, the needle handle is single Wing needle handle, it is characterised in that：The needle stand outer sheath is equipped with the combined type needle cap in syringe needle is included in, the combined type needle cap It is made up of inner sleeve and overcoat, the length of the inner sleeve is more than overcoat, the outer circumferential walls of the inner sleeve are provided with by upper end to being close to The U-shaped gap of lower end, the needle handle is exposed outside and needle handle root is located at the bottom in U-shaped gap through U-shaped gap, described outer Set is wrapped in the outer circumferential walls of the inner sleeve above needle handle root, and the position of the inner sleeve correspondence overcoat is provided with external screw thread, described Outer to be arranged with the internal thread being connected with external screw thread, the linear pattern that the outer circumferential walls of the overcoat are provided with from top to bottom is elongated open-minded Mouthful, the elongated gap of linear pattern and U-shaped gap are staggeredly located in a circumferential direction, it is described in put and be respectively equipped with limitation overcoat axle To the upper and lower limited block of displacement.

2. single use intravenous infusion needle according to claim 1, it is characterised in that：The U-shaped gap, linear pattern are led to The width of gap long is equal to or more than the thickness of needle handle root.

3. single use intravenous infusion needle according to claim 1, it is characterised in that：The top two of the U-shaped gap End is respectively equipped with inner concavity arc notch.

4. single use intravenous infusion needle according to claim 1, it is characterised in that：The upper and lower limited block difference It is the arc-shaped limit plate located at inner sleeve away from U-shaped gap side.

5. single use intravenous infusion needle according to claim 1, it is characterised in that：The U-shaped gap and linear pattern Elongated gap differs 180 ° in a circumferential direction.

6. single use intravenous infusion needle according to claim 1, it is characterised in that：The internal diameter and needle tubing of the inner sleeve External diameter it is equal.