CN210991842U

CN210991842U - Syringe for adding medicine to chemotherapy patient

Info

Publication number: CN210991842U
Application number: CN201921354829.6U
Authority: CN
Inventors: 王佳
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-08-21
Filing date: 2019-08-21
Publication date: 2020-07-14
Anticipated expiration: 2029-08-21

Abstract

The utility model discloses a chemotherapy patient adds medicine and uses syringe, including the cylinder, the surface of cylinder right-hand member is provided with first external screw thread, and threaded connection has first internal thread on the first external screw thread, and the first internal thread sets up the inner wall at the headgear left end, the right-hand member of headgear is provided with the syringe needle, the surface of needle cap is provided with the second external screw thread, threaded connection has the second internal thread on the second external screw thread, the utility model discloses a round platform shape that sets up and the rubber buffer that can move about on the push rod, after liquid medicine extraction finishes, make it and cylinder inner wall chucking, can be better prevent in the liquid medicine transportation process that the pushing hands activity leads to the situation that the liquid medicine is extruded to take place, thereby avoid the liquid medicine to waste; through the cooperation of second internal thread, second external screw thread and needle cap, the needle cap further avoids the liquid medicine to be extruded and leaks, avoids medical pollution, and second internal thread and the cooperation of second external screw thread make the fixed of needle cap more firm, difficult not hard up.

Description

Syringe for adding medicine to chemotherapy patient

Technical Field

The utility model relates to the technical field of medical appliances, in particular to a drug adding injector for chemotherapy patients.

Background

The syringe is a common medical appliance, the principle of the syringe is proposed by Katienlier Italy as early as 15 th century, gas or liquid is mainly extracted or injected by using a needle head, the syringe can also be used for medical equipment and containers, scientific instruments such as chromatography penetrate through a rubber diaphragm for injection, pistons of most needle tubes in hospitals are movable at present, the liquid medicine overflows due to the fact that a push rod moves in the transportation process, and the liquid medicine overflows into a needle cap from the needle head, so that waste of the liquid medicine is caused, and the recovery time of patients is influenced.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a to prior art not enough, the utility model provides a chemotherapy patient adds medicine and uses syringe has solved the piston of most of needle tubes in present hospital and all is movable, and the push rod activity can cause the liquid medicine to spill over in the transportation, and the liquid medicine also can spill over to the needle cap in from the syringe needle, and then has caused the waste of liquid medicine, has influenced patient's the problem of the recovered time.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: a chemical therapy patient adds medicine and uses the inspirator, including the syringe, the external surface of the right end of said syringe has first external screw thread, and the said first external screw thread has first internal screw thread in threaded connection, and the said first internal screw thread is opened in the inboard wall of the left end of the headgear, the right end of the said headgear has syringe needles, the external surface of the said needle cap has second external screw thread, the said second external screw thread has second internal screw thread in threaded connection, the said second internal screw thread is opened on the inboard wall of the needle cap;

the utility model discloses a syringe, including cylinder, piston device, rubber sleeve, left surface fixedly connected with push rod, the right-hand member of push rod extends to the outside and the fixedly connected with pushing hands of cylinder, the piston device of cylinder inner wall sliding connection has piston device, piston device includes the rubber sleeve, the surface of rubber sleeve and the inner wall sliding connection of cylinder, the left surface fixedly connected with push rod of rubber sleeve, the right-hand member of push rod extends to the.

Preferably, the head cover and the needle are both inside the needle cap.

Preferably, the surface sliding connection rubber buffer of push rod, the shape of rubber buffer is the round platform form, just the diameter of rubber buffer left end is greater than the diameter of right-hand member.

Preferably, the right-hand member surface dimension of rubber buffer is less than the left end surface dimension of cylinder, just the left end surface dimension of rubber buffer is greater than the left end surface dimension of cylinder.

(III) advantageous effects

The utility model provides a chemotherapy patient adds medicinal syringe possesses following beneficial effect:

through the arranged round table-shaped rubber plug which can move on the push rod, after the liquid medicine is extracted, the liquid medicine is tightly clamped with the inner wall of the needle cylinder, so that the situation that the liquid medicine is extruded due to the movement of the push handle in the liquid medicine transportation process can be well prevented, and the waste of the liquid medicine is avoided;

through the cooperation of second internal thread, second external screw thread and needle cap, the needle cap further avoids the liquid medicine to be extruded and leaks, avoids medical pollution, and second internal thread and the cooperation of second external screw thread make the fixed of needle cap more firm, difficult not hard up.

Drawings

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

fig. 2 is an enlarged schematic structural view of a portion a in fig. 1 according to the present invention.

In the figure: 1 syringe, 2, first external screw thread, 3 headgear, 4 first internal screw threads, 5 syringe needles, 6 second external screw threads, 7 needle caps, 8 second internal screw threads, 9 piston devices, 91 rubber sleeves, 92 push rods, 93 push hands and 10 rubber plugs.

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.

As shown in fig. 1-2, the utility model provides a technical solution: a chemotherapy patient adds medicinal inspirator, including the syringe 1, the external surface of the right end of syringe 1 has the first external screw thread 2, and the first external screw thread 2 is threaded with the first internal thread 4, and the first internal thread 4 is offered in the inboard wall of the left end of the headgear 3, the right end of the headgear 3 has syringe needle 5, the external surface of the headgear 3 has the second external screw thread 6, the second external screw thread 6 is threaded with the second internal thread 8, the second internal thread 8 is offered on the inboard wall of the needle cap 7;

the inner wall of the needle cylinder 1 is connected with a piston device 9 in a sliding manner, the piston device 9 comprises a rubber sleeve 91, the outer surface of the rubber sleeve 91 is connected with the inner wall of the needle cylinder 1 in a sliding manner, the left side surface of the rubber sleeve 91 is fixedly connected with a push rod 92, and the right end of the push rod 92 extends to the outside of the needle cylinder 1 and is fixedly connected with a push handle 93.

Specifically, the head housing 3 and the needle 5 are both inside the needle cap 7.

Specifically, the outer surface sliding connection rubber buffer 10 of push rod 92, the shape of rubber buffer 10 is round platform form, and the diameter of rubber buffer 10 left end is greater than the diameter of right-hand member, through setting up the shape of rubber buffer 10 and with the size relation of cylinder 1, makes it not only be convenient for get into in the cylinder 1 and with the chucking of cylinder 1 inner wall, be convenient for moreover push out, the injection of convenient follow-up liquid medicine.

Specifically, rubber buffer 10's right-hand member surface dimension is less than the left end surface dimension of cylinder 1, and rubber buffer 10's left end surface dimension is greater than the left end surface dimension of cylinder 1, through the rubber buffer 10 that sets up, after liquid medicine extraction finishes, makes its and 1 inner wall chucking of cylinder, can be better prevent in the liquid medicine transportation, the condition that pushing hands 92 activity leads to the liquid medicine to be extruded takes place to avoid the liquid medicine extravagant.

When in use: when liquid medicine needs to be sucked into the needle cylinder 1, the first external thread 2 is separated from the first internal thread 4 by rotating the head sleeve 3, so that the head sleeve 3, the needle head 5 and the needle cap 7 are taken down simultaneously, then the push rod 92 drives the rubber sleeve 91 to move outwards by pulling the push handle 93 outwards, and the liquid medicine enters the needle cylinder 1 by utilizing the negative pressure principle;

when the liquid medicine in the needle cylinder 1 needs to be transported after the liquid medicine is extracted, firstly, the rubber plug 10 is pushed into the needle cylinder 1, so that the rubber plug 10 enters the needle cylinder 1 and is tightly clamped with the inner wall of the needle cylinder 1 by utilizing the elasticity of the rubber plug, then, the removed head sleeve 3, the needle head 5 and the needle cap 7 are installed, and finally, medical personnel can transport the liquid medicine in the needle cylinder 1;

when the liquid medicine needs to be injected, the cap 7 is rotated and the cap 7 is taken down separately, and then the rubber plug 10 is pushed to be separated from the syringe 1, and at this time, the pushing handle 93 can be pressed to inject the liquid medicine.

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. A chemotherapy patient adds medicine and uses syringe, includes cylinder (1), its characterized in that: the outer surface of the right end of the needle cylinder (1) is provided with a first external thread (2), the first external thread (2) is in threaded connection with a first internal thread (4), the first internal thread (4) is arranged on the inner wall of the left end of the head cover (3), the right end of the head cover (3) is provided with a needle head (5), the outer surface of the head cover (3) is provided with a second external thread (6), the second external thread (6) is in threaded connection with a second internal thread (8), and the second internal thread (8) is arranged on the inner wall of the needle cap (7);

the utility model discloses a syringe, including cylinder (1), piston device (9) include rubber sleeve (91), the surface of rubber sleeve (91) and the inner wall sliding connection of cylinder (1), the left surface fixedly connected with push rod (92) of rubber sleeve (91), the right-hand member of push rod (92) extends to the outside and the fixedly connected with pushing hands (93) of cylinder (1).

2. The chemical-therapy patient dosing syringe according to claim 1, characterized in that: the head cover (3) and the needle head (5) are both arranged inside the needle cap (7).

3. The chemical-therapy patient dosing syringe according to claim 1, characterized in that: the outer surface sliding connection rubber buffer (10) of push rod (92), the shape of rubber buffer (10) is round platform form, just the diameter of rubber buffer (10) left end is greater than the diameter of right-hand member.

4. A chemical patient dosing syringe according to claim 3, wherein: the right-hand member surface dimension of rubber buffer (10) is less than the left end surface dimension of cylinder (1), just the left end surface dimension of rubber buffer (10) is greater than the left end surface dimension of cylinder (1).