CN217366031U

CN217366031U - Vein puncture needle cylinder with simple negative pressure fixation

Info

Publication number: CN217366031U
Application number: CN202221268702.4U
Authority: CN
Inventors: 黄基立
Original assignee: Chinese Academy Of Science Shenzhen Hospital, University of
Current assignee: Chinese Academy Of Science Shenzhen Hospital, University of
Priority date: 2022-05-25
Filing date: 2022-05-25
Publication date: 2022-09-06
Anticipated expiration: 2032-05-25

Abstract

The utility model discloses a vein puncture needle cylinder with simple negative pressure fixation, which comprises a needle cylinder main body, one end of the needle cylinder main body is fixedly connected with a connecting pipe, the outer side of the needle cylinder main body is fixedly connected with a fixing component, one side of the outer side of the needle cylinder main body, which is far away from the fixing component, is provided with a screw, the needle cylinder main body is connected with an adjusting screw through the screw thread, one side of the outer side of the needle cylinder main body, which is far away from the screw, is fixedly connected with a needle cylinder flank, one side of the needle cylinder main body is provided with a nozzle, one end of the needle cylinder main body is movably connected with an injection component through the nozzle, the inner part of the needle cylinder main body is movably connected with a telescopic spring, and through a fixing belt, a magic paster and a magic sticky sheet, the fixing mode effect of the vein puncture needle cylinder is improved, so that the vein puncture needle cylinder can be fixed according to requirements, through the arranged telescopic spring and the adjusting screw, the double hands of medical personnel are not required to operate cooperatively, therefore, it is inconvenient for the medical staff to operate and use.

Description

Vein puncture needle cylinder with simple negative pressure fixation

Technical Field

The utility model relates to a cylinder technical field specifically is a fixed vein puncture cylinder of simple and easy negative pressure.

Background

A product performance structure of the vein puncture needle and a product composed of the AVF needle tube, the rotatable raised inner core, the AVF rotatable raised core, the clamp, the inner cone connector, the locking cap and the blood collection tube are disposable.

However, the fixing mode effect of the existing venipuncture needle cylinder is poor, the needle cylinder is prone to position deviation, the whole venipuncture work is affected, and when venipuncture is conducted, the two hands of medical staff are required to be cooperatively operated, so that the medical staff are inconvenient to operate and use, and therefore the venipuncture needle cylinder with simple negative pressure fixing is provided.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

To the deficiency of the prior art, the utility model provides a venipuncture needle cylinder that simple and easy negative pressure is fixed to solve the problem that provides among the above-mentioned background art.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a fixed vein puncture cylinder of simple and easy negative pressure, includes the cylinder main part, the one end fixedly connected with connecting pipe of cylinder main part, the fixed subassembly of outside fixedly connected with of cylinder main part, the screw socket has been seted up to one side that fixed subassembly was kept away from in the outside of cylinder main part, the cylinder main part has adjusting screw through screw thread connection, one side fixedly connected with cylinder flank of screw socket is kept away from in the outside of cylinder main part, the nozzle has been seted up to one side of cylinder main part, the one end of cylinder main part has injection subassembly through nozzle swing joint, the inside swing joint of cylinder main part has the expanding spring.

Further preferably, fixed subassembly includes fixed band, magic paster and magic tape, fixed band fixed connection is in the outside of cylinder main part, the positive fixedly connected with magic tape of fixed band, the back fixedly connected with magic paster of fixed band.

Further preferably, the injection assembly comprises a syringe rod, a rod cap and a piston, the syringe rod is movably connected in a nozzle at one end of the syringe body, one end of the syringe rod is fixedly connected with the rod cap, and the other end of the syringe rod is fixedly connected with the piston.

Further preferably, the diameter of the piston is adapted to the inner diameter of the barrel opening.

Further preferably, the syringe main part is cylindrical, the inside of the syringe main part is hollowed out, and the outer surface of the syringe main part is smooth.

Further preferably, the syringe flank is provided with two, and two syringe flanks the size is the same, two syringe flanks symmetry setting.

(III) advantageous effects

The utility model provides a fixed vein puncture cylinder of simple and easy negative pressure possesses following beneficial effect:

(1) this kind of fixed vein puncture syringe of simple and easy negative pressure, fixed band through setting up, magic paster and magic tape, when using, through enclosing the fixed band in the syringe main part, and put up the positive magic tape of fixed band on the magic tape at the fixed band back, can be fixed, when needs use, medical personnel can enclose the fixed band on patient's wrist, install the same mode fix the fixed band on the wrist can, the same medical personnel still can directly paste magic paster or magic tape and fix on patient's clothes, so improved the fixed mode effect of vein puncture syringe, make the vein puncture syringe can fix according to the demand.

(2) This kind of fixed vein puncture syringe of simple and easy negative pressure, through the expanding spring and the adjusting screw that set up, when using vein puncture syringe, when medical personnel need puncture the patient and draw blood, medical personnel extrude the pole cap downwards, the syringe pole will promote the air in the piston discharge syringe main part, and extrude the expanding spring, then rotatory adjusting screw, adjusting screw will block the syringe pole, medical personnel inserts patient's blood drawing position to the puncture needle this moment, after inserting well, medical personnel only need loosen adjusting screw according to the demand, the expanding spring will promote the piston, and the syringe pole will be extruded away, the syringe main part will produce the negative pressure and draw blood this moment, so need not medical personnel's both hands collaborative operation, consequently, be not convenient for medical personnel to operate and use.

Drawings

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

fig. 2 is a sectional view of the syringe body of the present invention;

fig. 3 is a schematic view of a partial structure of the fixing band of the present invention.

In the figure: 1. a connecting pipe; 2. a syringe body; 201. screwing; 3. fixing belts; 4. magic paster; 5. magic adhesive sheet; 6. adjusting screws; 7. syringe flank; 8. a cylinder mouth; 9. a syringe rod; 10. a rod cap; 11. a piston; 12. a compression spring.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a fixed vein puncture syringe of simple and easy negative pressure, including cylinder main part 2, the one end fixedly connected with connecting pipe 1 of cylinder main part 2, the fixed subassembly of outside fixedly connected with of cylinder main part 2, screw thread 201 has been seted up to one side that fixed subassembly was kept away from in the outside of cylinder main part 2, cylinder main part 2 has adjusting screw 6 through screw thread 201 threaded connection, one side fixedly connected with cylinder flank 7 of screw thread 201 is kept away from in the outside of cylinder main part 2, nozzle 8 has been seted up to one side of cylinder

main part

2, 8 swing joint in nozzle have the injection subassembly through nozzle in the one end of cylinder main part 2, the inside swing joint of cylinder main part 2 has expanding spring 12.

In this embodiment, it is concrete, fixed subassembly includes fixed band 3, magic paster 4 and magic

sticky sheet

5, 3 fixed connection of fixed band are in the outside of cylinder main part 2, the positive fixedly connected with magic sticky sheet 5 of fixed band 3, the back fixedly connected with magic paster 4 of fixed band 3, through on 3 encloses fixed band on patient's wrist, the same mode of installation fix fixed band 3 on the wrist can, the same medical personnel still can fix magic paster 4 or magic sticky sheet 5 direct subsides on patient's clothes.

In this embodiment, specifically, the injection assembly includes a syringe rod 9, a rod cap 10 and a piston 11, the syringe rod 9 is movably connected in the nozzle 8 at one end of the syringe body 2, one end of the syringe rod 9 is fixedly connected with the rod cap 10, the other end of the syringe rod 9 is fixedly connected with the piston 11, the rod cap 10 is pressed downward, and the syringe rod 9 pushes the piston 11 to discharge air in the syringe body 2 and press the extension spring 12.

In this embodiment, specifically, the diameter of the piston 11 is adapted to the inner diameter of the cylinder opening 8, so that the piston 11 can move forward and backward more smoothly.

In this embodiment, specifically, the syringe body 2 is cylindrical, the inside of the syringe body 2 is hollow, and the outer surface of the syringe body 2 is smooth, so that the piston 11 and the inner wall of the syringe body 2 can be attached more closely.

In this embodiment, specifically, two syringe wings 7 are provided, the two syringe wings 7 have the same size, the two syringe wings 7 are symmetrically provided, and the syringe is convenient for medical staff to operate the syringe through the syringe wings 7.

The working principle is as follows: after the utility model is installed, firstly checking the installation fixation and safety protection of the utility model, when using the vein puncture needle cylinder, when the medical staff needs to puncture the patient for blood drawing, the medical staff extrudes the rod cap 10 downwards, the needle cylinder rod 9 can push the piston 11 to discharge the air in the needle cylinder main body 2 and extrude the expansion spring 12, then the adjusting screw 6 is rotated, the adjusting screw 6 can block the needle cylinder rod 9, at the moment, the medical staff inserts the puncture needle into the blood drawing part of the patient, after inserting, the medical staff only needs to loosen the adjusting screw 6 according to the requirement, the expansion spring 12 can push the piston 11, and the needle cylinder rod 9 can be extruded out, at the moment, the needle cylinder main body 2 can generate negative pressure and draw blood, when needing to fix the needle cylinder, by enclosing the fixing belt 3 on the needle cylinder main body 2, and pasting the magic patch 5 on the front side of the fixing belt 3 on the magic patch 4 on the back side of the fixing belt 3, can be fixed, when needs use, medical personnel can enclose fixed band 3 on patient's wrist, install the same mode fixed band 3 fix in the wrist can, the same medical personnel still can directly paste magic paster 4 or magic adhesion sheet 5 and fix on patient's clothes, it is right so just to have accomplished the utility model discloses a use, the utility model discloses simple structure, convenience safe in utilization.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a fixed vein puncture syringe of simple and easy negative pressure, includes syringe main part (2), its characterized in that: the one end fixedly connected with connecting pipe (1) of cylinder main part (2), the outside fixedly connected with fixed subassembly of cylinder main part (2), screw socket (201) have been seted up to one side that fixed subassembly was kept away from in the outside of cylinder main part (2), cylinder main part (2) have adjusting screw (6) through screw socket (201) threaded connection, one side fixedly connected with cylinder flank (7) of screw socket (201) are kept away from in the outside of cylinder main part (2), nozzle (8) have been seted up to one side of cylinder main part (2), nozzle (8) swing joint is passed through to the one end of cylinder main part (2) has the injection subassembly, the inside swing joint of cylinder main part (2) has expanding spring (12).

2. The venipuncture needle cartridge with simple negative pressure fixation of claim 1, wherein: the fixing component comprises a fixing band (3), a magic patch (4) and a magic adhesive sheet (5), the fixing band (3) is fixedly connected to the outer side of the needle cylinder main body (2), the front fixedly connected with the magic adhesive sheet (5) of the fixing band (3), and the back fixedly connected with the magic patch (4) of the fixing band (3).

3. The venipuncture needle cartridge with simple negative pressure fixation of claim 1, wherein: the injection assembly comprises a syringe rod (9), a rod cap (10) and a piston (11), wherein the syringe rod (9) is movably connected into a barrel opening (8) at one end of the syringe main body (2), one end of the syringe rod (9) is fixedly connected with the rod cap (10), and the other end of the syringe rod (9) is fixedly connected with the piston (11).

4. The venipuncture needle cartridge with simple negative pressure fixation of claim 3, wherein: the diameter of the piston (11) is matched with the inner diameter of the cylinder opening (8).

5. The venipuncture needle cartridge with simple negative pressure fixation of claim 1, wherein: the needle cylinder main body (2) is cylindrical, the inside of the needle cylinder main body (2) is hollow, and the outer surface of the needle cylinder main body (2) is smooth.

6. The venipuncture needle cartridge with simple negative pressure fixation of claim 1, wherein: the syringe flank (7) is provided with two, and two syringe flank (7) are the same size, two syringe flank (7) symmetry setting.