CN210992272U

CN210992272U - Venous indwelling needle convenient for taking needle

Info

Publication number: CN210992272U
Application number: CN201921509997.8U
Authority: CN
Inventors: 陈维国
Original assignee: Jiangxi Huali Medical Instrument Co ltd
Current assignee: Jiangxi Huali Medical Instrument Co ltd
Priority date: 2019-09-11
Filing date: 2019-09-11
Publication date: 2020-07-14
Anticipated expiration: 2029-09-11

Abstract

The utility model relates to the technical field of venous indwelling needle, in particular to a venous indwelling needle convenient for taking out, which comprises a needle seat, wherein the left end surface of the needle seat is communicated with a sleeve, the inner side of the needle seat is provided with a needle head, the needle head penetrates through the needle seat and the sleeve, the needle head is connected with the needle seat and the sleeve in a sliding way, the right side of the top end surface of the needle head is fixedly connected with a rack, the rack penetrates through the needle seat, the rack is connected with the needle seat in a sliding way, the bottom end of the needle seat is provided with an interface, the needle seat is communicated with the interface, the bottom end of the interface is provided with an extension tube, and the extension tube is communicated with the interface, in the utility model, through the arranged gear, the arrangement is matched with the meshing connection of the gear and the rack, the sliding connection of the needle head, the sleeve and the needle seat, the rotating connection of the gear and a rotating shaft and the, the stability of the needle head when being taken out is convenient to control, and the operation is simple and convenient.

Description

Venous indwelling needle convenient for taking needle

Technical Field

The utility model relates to a vein indwelling needle technical field specifically is a vein indwelling needle of conveniently getting needle.

Background

The application of the venous indwelling needle is a better method for clinical transfusion, on one hand, the pain of an infant caused by repeated puncture of a scalp needle can be relieved, the venous indwelling needle can be suitable for adults who transfuse for a long time, on the other hand, the workload of clinical nurses is relieved, the venous indwelling needle is simple and convenient to operate, is suitable for puncture of any part, meanwhile, the pain of repeated puncture of a patient is relieved, the workload of nursing staff is relieved, the venous indwelling needle is deeply welcomed by patients clinically, but the indwelling time is always controversial, the health administration department, the hospital and indwelling needle manufacturers claim that the indwelling time is not more than three to five days, along with the continuous development of medical service, the venous indwelling needle is more and more applied, but some defects exist when some venous indwelling needles are used, and therefore, the demand for the venous indwelling needle convenient to take the needle is increased day by day.

In the field of venous indwelling needles, in the using process of a part of currently used venous indwelling needles, the needle taking is inconvenient, the operation is inconvenient for controlling the speed of taking out the needle head, the stability of the bolster needle head is inconvenient to carry out when the needle is taken, and part of the venous indwelling needles cannot assist blood drawing when in use.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a conveniently get vein of needle and keep somewhere needle 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 venous indwelling needle convenient for taking a needle comprises a needle base, wherein the left end face of the needle base is communicated with a sleeve, the inner side of the needle base is provided with a needle head, the needle head penetrates through the needle base and the sleeve, the needle head is slidably connected with the needle base and the sleeve, the right side of the top end face of the needle head is fixedly connected with a rack, the rack penetrates through the needle base, the rack is slidably connected with the needle base, the bottom end of the needle base is provided with a connector, the needle base is communicated with the connector, the bottom end of the connector is provided with an extension pipe, the extension pipe is communicated with the connector, the left side of the top end face of the needle base is fixedly connected with a piston cylinder, the bottom end of the piston cylinder is communicated with a liquid inlet pipe, the other end of the liquid inlet pipe is communicated with the needle base, the top end of the piston cylinder is provided with a handle, the handle, the handle outside bottom is equipped with the spring, and the one end and the piston piece fixed connection of spring, the other end and the piston cylinder fixed connection of spring, handle outside top is equipped with first swivel nut, and first swivel nut and piston cylinder fixed connection, the piston cylinder right-hand member is equipped with defeated blood vessel.

Preferably, the top end of the rack is connected with a gear in a meshed mode, the gear penetrates through the needle base and is connected with the needle base in a rotating mode, a rotating shaft is arranged at the center of the inner side of the gear and is connected with the gear in a rotating mode, and the rotating shaft is connected with the needle base in a rotating mode.

Preferably, the syringe needle outside is equipped with the isolation stopper, and keeps apart stopper and syringe needle and rack sliding connection, keep apart stopper and needle file fixed connection, keep apart the stopper and make by the panel of silica gel material.

Preferably, the first swivel nut outside is equipped with the protective cover, and protective cover and first swivel nut screwed connection, protective cover and piston cylinder sliding connection, protective cover top terminal surface rotates and is connected with the connecting strip, and the other end and the piston cylinder fixed connection of connecting strip.

Preferably, the outer side of the blood transfusion tube is fixedly connected with a second threaded sleeve, and the second threaded sleeve is in threaded connection with the piston cylinder.

Compared with the prior art, the beneficial effects of the utility model are that:

1. in the utility model, through the arranged gear, the arrangement is matched with the meshing connection of the gear and the rack, the sliding connection of the needle head, the sleeve and the needle seat, the rotating connection of the gear and the rotating shaft and the sliding connection of the isolating plug, the needle head and the rack, when the needle head needs to be taken out, the gear can be rotated, thereby not only being convenient for controlling the speed of taking out the needle head, but also being convenient for controlling the stability of taking out the needle head, and the operation is simple and convenient;

2. the utility model discloses in, through the piston piece that sets up, this kind sets up the sliding connection of cooperation spring to piston piece, piston piece and piston cylinder, the screwed connection of first swivel nut and protective cover and the screwed connection of second swivel nut and piston cylinder, when needs draw blood, take off the protective cover then stimulate the handle can, not only avoided pricking the misery that brings to the patient again, still increased the application scope of device.

Drawings

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

FIG. 2 is a schematic view of the structure at A of FIG. 1 according to the present invention;

fig. 3 is a schematic structural diagram of the point B in fig. 1 according to the present invention.

In the figure: 1-needle seat, 2-sleeve, 3-needle, 4-rack, 5-gear, 6-rotating shaft, 7-isolating plug, 8-interface, 9-extension tube, 10-piston cylinder, 11-liquid inlet tube, 12-handle, 13-piston block, 14-spring, 15-first screw sleeve, 16-protective cover, 17-connecting strip, 18-blood conveying tube and 19-second screw sleeve.

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.

Referring to fig. 1-3, the present invention provides a technical solution:

a vein indwelling needle convenient for taking a needle comprises a needle base 1, wherein the left end face of the needle base 1 is communicated with a sleeve 2, the inner side of the needle base 1 is provided with a needle head 3, the needle head 3 penetrates through the needle base 1 and the sleeve 2, the needle head 3 is in sliding connection with the needle base 1 and the sleeve 2, the right side of the top end face of the needle head 3 is fixedly connected with a rack 4, the rack 4 penetrates through the needle base 1, the rack 4 is in sliding connection with the needle base 1, the arrangement is convenient for controlling the speed and the stability of the needle head 3 when the needle head is taken out, the bottom end of the needle base 1 is provided with a connector 8, the needle base 1 is communicated with the connector 8, the bottom end of the connector 8 is provided with an extension pipe 9, the extension pipe 9 is communicated with the connector 8, the left side of the top end face of the needle base 1 is fixedly connected with a piston cylinder 10, the bottom end of, and handle 12 runs through piston cylinder 10, handle 12 and piston cylinder 10 sliding connection, handle 12 bottom is equipped with piston block 13, and piston block 13 and handle 12 fixed connection, piston block 13 and piston cylinder 10 sliding connection, handle 12 outside bottom is equipped with spring 14, and spring 14's one end and piston block 13 fixed connection, spring 14's the other end and piston cylinder 10 fixed connection, this kind of setting is convenient for draw blood operation to the patient, has not only reduced patient's misery, has still increased the application scope of device, handle 12 outside top is equipped with first swivel nut 15, and first swivel nut 15 and piston cylinder 10 fixed connection, and this kind of setting is convenient for fix a position protective cover 16, piston cylinder 10 right-hand member is equipped with blood transfusion tube 18, and this kind of setting has made things convenient for patient's blood drawing, has guaranteed the precision of blood chemical examination.

The meshing of 4 tops of rack is connected with gear 5, and gear 5 runs through needle file 1, gear 5 rotates with needle file 1 to be connected, gear 5 inboard central point puts and is equipped with pivot 6, and pivot 6 rotates with gear 5 to be connected, pivot 6 rotates with needle file 1 to be connected, and the speed that this kind of setting was convenient for control syringe needle 3 taken out has guaranteed the stability when syringe needle 3 took out, and the operation is simple and convenient, the syringe needle 3 outside is equipped with isolation plug 7, and isolation plug 7 and syringe needle 3 and rack 4 sliding connection, isolation plug 7 and needle file 1 fixed connection, isolation plug 7 is made by the panel of silica gel material, and the phenomenon that blood and liquid medicine appear flowing out after syringe needle 3 took out has been avoided in this kind of setting, first swivel nut 15 outside is equipped with protective cover 16, and protective cover 16 and first swivel nut 15 screwed connection, protective cover 16 and piston cylinder 10 sliding connection, the top end face of the protective cover 16 is rotatably connected with the connecting strip 17, the other end of the connecting strip 17 is fixedly connected with the piston cylinder 10, the phenomenon that the handle 12 is pulled by misoperation is avoided by the arrangement, the handle 12 is protected, the second thread sleeve 19 is fixedly connected to the outer side of the blood transfusion tube 18, the second thread sleeve 19 is in threaded connection with the piston cylinder 10, the blood transfusion tube 18 is convenient to replace by the arrangement, the blood transfusion tube 18 is prevented from being blocked by residual blood hardening in the used blood transfusion tube 18, and the phenomenon that the test accuracy is influenced by residual blood polluting new blood is also avoided.

The working process is as follows: when the device is used for transfusion, the needle seat 1 is held by hand, then the needle 3 is pricked into a blood vessel of a transfusion person, at the moment, the cannula 2 is pricked into the blood vessel along with the needle 3, after the needle pricking operation is finished, the gear 5 is manually and slowly rotated to enable the gear 5 to rotate anticlockwise, at the moment, the gear 5 is continuously meshed with the rack 4, the needle 3 continuously slides rightwards, the isolating plug 7 is continuously meshed with the needle 3 and the rack 4, when the needle 3 completely slides out of the cannula 2, the gear 5 is just disengaged and connected with the rack 4, then the needle 3 is manually pulled rightwards to be pulled out from the needle seat 1, when the needle 3 is disengaged and connected with the isolating plug 7, at the moment, the isolating plug 7 is just completely extruded, at the moment, all liquid cannot flow to the right side of the isolating plug 7 from the left side of the isolating plug 7, and then the transfusion operation is carried out, at the moment, the liquid medicine can flow into the blood vessel through the extension tube 9, the interface 8, the needle base 1 and the sleeve 2, when a patient needs blood drawing and testing, the extension tube 9 is clamped by a small clamp firstly, then the protective cover 16 is rotated to separate the screw connection with the first screw sleeve 15, then the handle 12 is pulled upwards, the spring 14 is compressed, the piston block 13 can slide upwards, when the piston block 13 is not shielded from the blood transfusion tube 18, blood can pass through the sleeve 2, the needle base 1, the liquid inlet tube 11, the piston cylinder 10 and the blood transfusion tube 18 under the action of the blood pressure of a human body and is finally collected in a blood collection container, because a small amount of liquid medicine flows out when the blood flows out, the liquid medicine is discharged firstly and then blood collection is carried out, after the blood is collected, the pulling of the handle 12 is released, then the protective cover 16 is reset, when the blood drawing is carried out again next time, the blood transfusion tube 18 is rotated firstly to separate the second screw sleeve 19 from the piston cylinder 10, then, a new blood transfusion tube 18 is replaced for blood drawing, so that the blood transfusion tube 18 is prevented from being blocked by residual blood hardening in the used blood transfusion tube 18, and the phenomenon that the residual blood pollutes new blood to influence the test accuracy is avoided.

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 conveniently get vein indwelling needle of needle, includes needle file (1), its characterized in that: the needle base is characterized in that the left end face of the needle base (1) is communicated with a sleeve (2), a needle (3) is arranged on the inner side of the needle base (1), the needle (3) penetrates through the needle base (1) and the sleeve (2), the needle (3) is in sliding connection with the needle base (1) and the sleeve (2), a rack (4) is fixedly connected to the right side of the top end face of the needle (3), the rack (4) penetrates through the needle base (1), the rack (4) is in sliding connection with the needle base (1), a connector (8) is arranged at the bottom end of the needle base (1), the needle base (1) is communicated with the connector (8), an extension pipe (9) is arranged at the bottom end of the connector (8), the extension pipe (9) is communicated with the connector (8), a piston cylinder (10) is fixedly connected to the left side of the top end face of the needle base (1), a liquid inlet pipe (11) is communicated with the, piston cylinder (10) top is equipped with handle (12), and handle (12) run through piston cylinder (10), handle (12) and piston cylinder (10) sliding connection, handle (12) bottom is equipped with piston block (13), and piston block (13) and handle (12) fixed connection, piston block (13) and piston cylinder (10) sliding connection, handle (12) outside bottom is equipped with spring (14), and the one end and the piston block (13) fixed connection of spring (14), the other end and piston cylinder (10) fixed connection of spring (14), handle (12) outside top is equipped with first swivel nut (15), and first swivel nut (15) and piston cylinder (10) fixed connection, piston cylinder (10) right-hand member is equipped with defeated blood vessel (18).

2. The venous indwelling needle convenient for needle extraction as claimed in claim 1, wherein: the rack (4) top meshing is connected with gear (5), and gear (5) run through needle file (1), gear (5) rotate with needle file (1) and are connected, gear (5) inboard central point puts and is equipped with pivot (6), and pivot (6) rotate with gear (5) and be connected, pivot (6) rotate with needle file (1) and are connected.

3. The venous indwelling needle convenient for needle extraction as claimed in claim 1, wherein: syringe needle (3) outside is equipped with isolation stopper (7), and keeps apart stopper (7) and syringe needle (3) and rack (4) sliding connection, keep apart stopper (7) and needle file (1) fixed connection, keep apart stopper (7) and be made by the panel of silica gel material.

4. The venous indwelling needle convenient for needle extraction as claimed in claim 1, wherein: first swivel nut (15) outside is equipped with protective cover (16), and protective cover (16) and first swivel nut (15) screwed connection, protective cover (16) and piston cylinder (10) sliding connection, protective cover (16) top terminal surface rotates and is connected with connecting strip (17), and the other end and piston cylinder (10) fixed connection of connecting strip (17).

5. The venous indwelling needle convenient for needle extraction as claimed in claim 1, wherein: the outer side of the blood transfusion tube (18) is fixedly connected with a second threaded sleeve (19), and the second threaded sleeve (19) is in threaded connection with the piston cylinder (10).