CN213526418U

CN213526418U - XiLin, ampoule dispense and use needle

Info

Publication number: CN213526418U
Application number: CN202021896673.7U
Authority: CN
Inventors: 柏轲; 曾涛; 熊涛; 汤麒麟; 林涛
Original assignee: Sichuan Guoli Petroleum Engineering Co ltd
Current assignee: Sichuan Guoli Petroleum Engineering Co ltd
Priority date: 2020-09-02
Filing date: 2020-09-02
Publication date: 2021-06-25
Anticipated expiration: 2030-09-02

Abstract

The utility model discloses a medicine dispensing needle for penicillin and ampoule bottles, which comprises a needle cylinder, a needle seat and a needle head, wherein the needle head comprises an inner needle head and an outer needle head; the inner needle head is a hollow steel tube, one end of the inner needle head is arranged on the needle base and is sequentially communicated with the needle base and the liquid outlet of the needle cylinder, the other end of the inner needle head is a closed and conical needle point, and a liquid inlet hole is formed in the position, below the needle point, of the inner needle head; the outside of interior syringe needle is located to outer syringe needle cover, and the length of outer syringe needle is less than the length of interior syringe needle, forms annular cavity between the inner wall of outer syringe needle and the outer wall of interior syringe needle, and the one end that the needle file was kept away from to outer syringe needle is the conical surface and closely laminates with the outer wall of interior syringe needle, and the feed liquor hole that this laminating position was located interior syringe needle is close to one side of needle file, and the lateral wall of outer syringe needle is equipped with the inlet port with the annular cavity intercommunication. The needle for dispensing can effectively solve the problems that an ampoule and a penicillin bottle need to be dispensed by using different needle cylinders, liquid bags, medicine bottles and the like are exhausted in real time, the dispensing efficiency is improved, and the needle is simple in structure, good in effect, convenient and practical.

Description

XiLin, ampoule dispense and use needle

Technical Field

The utility model relates to the technical field of medical equipment, especially a xiLin, ampoule dispense and use needle.

Background

The needles used in the existing penicillin bottles and ampoule bottles are different whether manual or mechanical dispensing, because most of the medicaments stored in the ampoule bottles are aqueous solutions, a needle cylinder with a flat-mouth needle point is usually inserted into the bottom of a bottle body to suck the liquid medicine, or a needle cylinder with an inclined-mouth needle point is used and the ampoule bottles are inclined, so that the liquid medicine can be completely sucked into the needle cylinder; the most powder injection of xiLin bottle needs at first to use the mother liquor of a part of infusion bag to dissolve and dilute, reinfusion to infusion bag again, and xiLin bottleneck adopts the rubber buffer to seal more, if adopt the cylinder that has plain end or bevel connection needle point, can inevitably puncture the rubber buffer repeatedly in diluting and the suction process to xiLin bottle, the incision that the needle point is sharp very easily leads to rubber to drop and pollutes the liquid medicine or blocks up the needle tubing, consequently need adopt the needle point of side trompil in order to reduce the injury to the rubber buffer, but the needle point of side trompil is because the drill way is back, the suction ampoule needs the wide-angle slope, let the liquid medicine gathering near the needle point drill way just can guarantee the. However, whether the syringe with the bevel port or the side port is used, due to the manufacturing difference, after the ampoule bottle is inserted, it is difficult to ensure the direction of the needle point opening to be just close to the position of the side wall where the liquid medicine is gathered due to the inclined bottle body, if the direction position of the opening is too different, and the liquid medicine is not sucked cleanly. In addition, the needle cylinder used for conventional medicine dispensing is a single-hole needle without an exhaust device, and when external medicine liquid is injected into the mother liquid bag, the liquid bag gradually swells and needs to be exhausted halfway, so that the medicine dispensing efficiency is influenced.

Chinese patent No. CN108056918A discloses an injector for dispensing medicine with an exhaust function, which is mainly characterized in that: the dispensing injector with the exhaust function comprises a needle cylinder, a piston rod, a needle seat and a needle tube, wherein an inner cavity for containing liquid medicine is arranged in the needle cylinder, the piston rod is movably arranged in the inner cavity of the needle cylinder and pushes and pulls the piston rod to further change the size of the inner cavity of the needle cylinder, a liquid medicine channel is arranged in the needle seat, the needle seat is connected to the needle cylinder, the liquid medicine channel in the needle seat is communicated with the inner cavity of the needle cylinder, one end of the needle tube is arranged in the liquid medicine channel. The method is further characterized in that: the needle base is provided with a needle tube, the needle tube is provided with an air inlet, an air outlet and an air inlet, the needle base is sleeved and fixedly connected with the upper end of the air inlet, an annular cavity for air flow to pass through is formed between the inner wall of the air inlet and the outer wall of the needle tube, and the air outlet and the air inlet are respectively communicated with the annular cavity. The method is further characterized in that: the air outlet is a strip-shaped hollow hole positioned at the upper end of the ventilation sleeve, and the air inlet is an arched notch positioned at the lower end of the ventilation sleeve. The method is further characterized in that: the lower end of the ventilation sleeve is in a frustum shape with gradually reduced outer diameter, and the inner diameter of the end part of the lower end of the ventilation sleeve is consistent with the outer diameter of the needle tube. The method is further characterized in that: the needle seat and the needle cylinder are integrally formed.

The syringe disclosed in the patent can realize the exhaust of the bottle body or the liquid bag to a certain extent, but the syringe per se has more component parts, the structure of the ventilation sleeve is relatively complex to match, the fixing position is more, the assembly requirement is higher, meanwhile, the needle seat and the needle cylinder are integrally formed, the standard needle cylinder cannot be used, and the use economy is lower. In addition, the upper end of the ventilation sleeve needs to be fixedly connected on the needle base, and the inner diameter of the lower end part of the ventilation sleeve is consistent with the outer diameter of the needle tube, namely the ventilation sleeve needs to be tightly combined with the needle tube; the other end of needle tubing is installed in the liquid medicine passageway of needle file, because the needle tubing must keep firm still need transmit liquid simultaneously and do not leak, and need inseparable combination and sealed between needle tubing and the needle file, many places are fixed and the joint position more than, all can make this syringe be not convenient for manufacturing, simultaneously also easy because processing, touching in assembly error or the use, lead to the needle tubing, the sleeve pipe of ventilating, form the gap each other and cause each other not hard up because of the decentraction appears between the needle file three, influence this syringe intensity and quality, also lead to the bottle plug to fall the bits easily when the lower extreme puncture of the sleeve pipe of ventilating gets into in the bottle.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems existing in the prior art, the utility model provides a needle for dispensing penicillin and ampoule bottles.

The utility model adopts the technical proposal that:

a medicine dispensing needle for penicillin and ampoule bottles comprises a needle cylinder, a needle seat and a needle head, wherein the needle head comprises an inner needle head and an outer needle head; the inner needle head is a hollow steel tube, one end of the inner needle head is arranged on the needle seat and is sequentially communicated with the needle seat and a liquid outlet of the needle cylinder, the other end of the inner needle head is a closed and conical needle point, and a liquid inlet hole is formed in the position, below the needle point, of the inner needle head; the outside of interior syringe needle is located to outer syringe needle cover, the length of outer syringe needle is less than the length of interior syringe needle, the inner wall of outer syringe needle with form annular cavity between the outer wall of interior syringe needle, the one end that the needle file was kept away from to outer syringe needle is the conical surface and closely laminates with the outer wall of interior syringe needle, and the feed liquor hole that should laminate the position and be located interior syringe needle is close to one side of needle file, the lateral wall of outer syringe needle is equipped with the inlet port with the annular cavity intercommunication.

Preferably, the side wall of the inner needle head is provided with a plurality of liquid inlet holes, and all the liquid inlet holes are positioned on one side of the conical surface of the outer needle head, which is far away from the needle seat.

Preferably, the outer needle head is made of the same material as the inner needle head, and the conical surface of the outer needle head is connected with the outer wall of the inner needle head in an adhering or welding mode.

Preferably, a gap exists between one end of the outer needle head close to the needle seat and the inner needle head and the needle seat, and the gap is kept communicated with the atmosphere.

Preferably, the side wall of the outer needle head is respectively provided with a plurality of air inlet holes and air outlet holes which are communicated with the annular cavity, and the air inlet holes and the air outlet holes are respectively distributed in a circumferential array by taking the axis of the outer needle head as the circle center.

Preferably, one end of the outer needle head close to the needle seat is bonded or welded on the outer wall of the inner needle head, and the air inlet hole is positioned on one side of the exhaust hole far away from the needle seat.

The utility model has the advantages that:

1. the syringe pumps and discharges the liquid medicine through the liquid inlet hole of the inner needle, and simultaneously, the air in the infusion bag and the medicine bottle is discharged through the air inlet hole of the outer needle, so that the insertion depth of the needle point can be controlled to exhaust air at any time according to requirements, and the device is convenient and reliable. Simultaneously, outer syringe needle direct mount is fixed on interior syringe needle, and its simple structure simple to operate, the slight deformation that the syringe needle received exogenic action in the permission can not be because of touching and bending in the use, and lead to appearing becoming flexible between outer syringe needle, interior syringe needle and the needle file, and influence cylinder bulk strength and quality, in addition, except that other subassemblies outside the syringe needle all can use current standard equipment, need not additionally make and handle, effectively reduce use cost, facilitate promotion.

2. No matter the penicillin bottle or the ampoule bottle dispenses, the needle cylinders with the same needle structure are used, other needle cylinders do not need to be additionally replaced, dispensing time is saved, and dispensing efficiency is improved; when the ampoule bottle is configured, the liquid medicine in the ampoule bottle can completely enter the needle cylinder by inclining the needle cylinder, so that the residue of the liquid medicine is reduced, and the dispensing quality is improved; when a penicillin bottle is configured, the outer needle head is used for exhausting air, so that the pressure in the penicillin bottle is balanced, liquid leakage is avoided when the needle is pulled out in an inverted mode, and the medicine dispensing quality and safety are improved; when the liquid medicine in the needle cylinder is injected into the infusion bag, the air is exhausted through the outer needle head, so that the pressure in the infusion bag is balanced, bag expansion cannot occur, the dispensing safety is improved, the practicability is high, and the effect is good.

Drawings

FIG. 1 is a schematic structural view of a needle head (without an exhaust hole) and a needle holder in an embodiment of the present invention;

fig. 2 is a schematic structural view of a needle head (including an exhaust hole) and a needle base in embodiment 2 of the present invention;

FIG. 3 is a schematic structural view of the needle head (including the vent hole), needle seat and needle cylinder in the embodiment of the present invention;

fig. 4 is a schematic diagram of the principle of applying a dispensing needle (including an exhaust hole) to an infusion bag to exhaust in the embodiment of the present invention;

reference numerals: 1. the needle cylinder 2, the needle seat 3, the inner needle 31, the needle point 32, the liquid inlet hole 4, the outer needle 41, the tail end 42, the annular cavity 43, the air inlet hole 44, the conical surface 45 and the air outlet hole.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

Examples

As shown in fig. 1-4, a medicine dispensing needle for penicillin and ampoule bottles comprises a needle cylinder 1, a needle seat 2 and a needle head, wherein the needle head comprises an inner needle head 3 and an outer needle head 4; the inner needle 3 is a hollow steel tube, one end of the inner needle 3 is arranged on the needle seat 2 and is sequentially communicated with the needle seat 2 and a liquid outlet of the needle cylinder 1, the other end of the inner needle is a closed and conical needle point 31, and a liquid inlet hole 32 is formed in the position, below the needle point 31, of the inner needle 3; the outside of interior syringe needle 3 is located to outer syringe needle 4 cover, the length of outer syringe needle 4 is less than the length of interior syringe needle 3, the inner wall of outer syringe needle 4 with form annular cavity 42 between the outer wall of interior syringe needle 3, the one end that needle file 2 was kept away from to outer syringe needle 4 is conical surface 44 and closely laminates with the outer wall of interior syringe needle 3, and this laminating position is located one side that feed liquor hole 32 of interior syringe needle 3 is close to needle file 2, the lateral wall of outer syringe needle 4 is equipped with the inlet port 43 with annular cavity 42 intercommunication.

The side wall of the inner needle head 3 is provided with a plurality of liquid inlet holes 32, and all the liquid inlet holes 32 are positioned on one side of the conical surface 44 of the outer needle head 4, which is far away from the needle base 2.

The outer needle head 4 is made of the same material as the inner needle head 3, and the conical surface 44 of the outer needle head 4 is connected with the outer wall of the inner needle head 3 in an adhering or welding mode.

A gap exists between one end (tail end 41) of the outer needle head 4 close to the needle seat 2 and the inner needle head 3 and the needle seat 2, and the gap is kept communicated with the atmosphere.

The side wall of the outer needle 4 is respectively provided with a plurality of air inlet holes 43 and air outlet holes 45 which are communicated with the annular cavity 42, and the air inlet holes 43 and the air outlet holes 45 are respectively distributed in a circumferential array by taking the axis of the outer needle 4 as the center of a circle.

The tail end 41 of the outer needle 4 is adhered or welded on the outer wall of the inner needle 3, and the air inlet hole 43 is positioned on one side of the air outlet hole 45 far away from the needle base 2.

Utilize xiLin, ampoule dispense special needle time, take out, arrange the liquid medicine through feed liquor hole 32 of interior syringe needle 3, simultaneously, air in infusion bag, ampoule, the xiLin bottle is got rid of through 4 inlet ports 43 of outer syringe needle and exhaust hole 45, can control needle point 31 depth of insertion as required and exhaust at any time, convenient and reliable. Simultaneously, outer syringe needle 4 direct mount is fixed on syringe needle 3 including, its simple structure simple to operate, the slight deformation that admits interior syringe needle 3 and receive exogenic action can not be because of touching and bending in the use, and lead to outer syringe needle 4, appear becoming flexible between interior syringe needle 3 and the needle file 2, and influence 1 bulk strength of cylinder and quality, in addition, except that other subassemblies outside syringe needle 4 all can use current standard equipment, do not need additionally to make and handle, effectively reduce use cost, and the facilitate promotion. Meanwhile, the needle cylinders 1 with the same needle structure are used for dispensing both penicillin bottles and ampoule bottles, so that other needle cylinders 1 do not need to be additionally replaced, the dispensing time is saved, and the dispensing efficiency is improved; when the ampoule bottle is configured, the liquid medicine in the ampoule bottle can completely enter the needle cylinder 1 by inclining the needle cylinder 1, so that the liquid medicine residue is reduced, and the dispensing quality is improved; when a penicillin bottle is configured, the outer needle head 4 is used for exhausting air, so that the pressure in the penicillin bottle is balanced, liquid leakage is avoided when the needle is pulled out in an inverted mode, and the medicine dispensing quality and safety are improved; when the liquid medicine in the needle cylinder 1 is injected into the infusion bag, the air is exhausted through the outer needle head 4, so that the pressure in the infusion bag is balanced, bag expansion cannot occur, the dispensing safety is improved, the practicability is high, and the effect is good.

The above-mentioned embodiments only express the specific embodiments of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.

Claims

1. A medicine dispensing needle for penicillin and ampoule bottles comprises a needle cylinder (1), a needle seat (2) and a needle head, and is characterized in that the needle head comprises an inner needle head (3) and an outer needle head (4); the inner needle head (3) is a hollow steel tube, one end of the inner needle head (3) is arranged on the needle seat (2) and is sequentially communicated with the needle seat (2) and a liquid outlet of the needle cylinder (1), the other end of the inner needle head is a closed and conical needle point (31), and a liquid inlet hole (32) is formed in the position, below the needle point (31), of the inner needle head (3); the outside of interior syringe needle (3) is located to outer syringe needle (4) cover, the length of outer syringe needle (4) is less than the length of interior syringe needle (3), the inner wall of outer syringe needle (4) with form annular cavity (42) between the outer wall of interior syringe needle (3), the one end that the needle file was kept away from in outer syringe needle (4) is conical surface (44) and closely laminates with the outer wall of interior syringe needle (3), and feed liquor hole (32) that this laminating position was located interior syringe needle (3) are close to one side of needle file, the lateral wall of outer syringe needle (4) is equipped with inlet port (43) with annular cavity (42) intercommunication.

2. The penicillin and ampoule bottle dispensing needle as claimed in claim 1, wherein the side wall of the inner needle head (3) is provided with a plurality of liquid inlet holes (32), and all the liquid inlet holes (32) are positioned on the side of the conical surface (44) of the outer needle head (4) far away from the needle base (2).

3. The penicillin and ampoule bottle dispensing needle as claimed in claim 1, wherein the outer needle head (4) is made of the same material as the inner needle head (3), and the conical surface (44) of the outer needle head (4) is connected with the outer wall of the inner needle head (3) in an adhering or welding manner.

4. A penicillin and ampoule bottle dispensing needle according to claim 1, characterized in that a gap exists between one end of the outer needle (4) close to the needle holder (2) and the inner needle (3) and the needle holder (2), and the gap is kept communicated with the atmosphere.

5. The medicine dispensing needle for penicillin and ampoule bottles of claim 1, wherein the side wall of the outer needle head (4) is respectively provided with a plurality of air inlet holes (43) and air outlet holes (45) which are communicated with the annular cavity (42), and the air inlet holes (43) and the air outlet holes (45) are respectively distributed in a circumferential array by taking the axis of the outer needle head (4) as the center of a circle.

6. A penicillin and ampoule bottle dispensing needle according to claim 5, wherein one end of the outer needle head (4) close to the needle seat (2) is bonded or welded on the outer wall of the inner needle head (3), and the air inlet hole (43) is positioned on one side of the exhaust hole (45) far away from the needle seat (2).