CN215386590U

CN215386590U - Pre-filling and sealing package

Info

Publication number: CN215386590U
Application number: CN202122856355.9U
Authority: CN
Inventors: 杨杨; 刘振涛; 臧庆武
Original assignee: Beijing Guanhe Medical Technology Co ltd
Current assignee: Beijing Guanhe Medical Technology Co ltd
Priority date: 2021-11-19
Filing date: 2021-11-19
Publication date: 2022-01-04
Anticipated expiration: 2031-11-19

Abstract

The utility model relates to a embedment packing in advance in the medical instrument field, it includes the syringe ladle body, the one end of syringe ladle body is connected with a connector, sliding connection has a piston in the syringe ladle body, one side that the piston deviates from the connector is connected with the push rod, the one end that the piston was kept away from to the push rod is located outside the syringe ladle body, installed the decompression sealing cap on the connector, the decompression sealing cap can be right thermal expansion when the syringe ladle body high temperature sterilization reduces the pressure, be equipped with the locking subassembly that is used for restricting the push rod and slides between syringe ladle body and the push rod. The syringe barrel has the advantages that the medicine loss in the syringe barrel is reduced, and the storage stability of the medicine in the syringe barrel is improved.

Description

Pre-filling and sealing package

Technical Field

The application relates to the field of medical equipment, in particular to a pre-filling and sealing package.

Background

The pre-filled syringe is mainly used for packaging and storing high-grade medicines and directly used for injection or used for washing operations of ophthalmology, otology, orthopedics and the like, has two functions of medicine storage and injection, adopts high-quality glass, plastic and rubber, and ensures safety and reliability; the transfer of liquid medicine from a glass package to the needle cylinder is omitted, and the waste of the medicine caused by adsorption is reduced; the cleaning, disinfection and filling-free device is free from cleaning, disinfection and filling in clinical use, and labor and cost consumed from production to use are reduced to the maximum extent; however, the push rod with the common structure of the prior pre-filling, filling and injecting package causes the loss of the medicine in the package because the push rod is pushed away from the syringe barrel body due to the mistaken collision in the transfer process or the liquid in the syringe barrel body is expanded due to heat during high-temperature sterilization.

SUMMERY OF THE UTILITY MODEL

In order to reduce the medicine loss in the syringe ladle body, improve the stability of medicine in the storage of syringe ladle body, this application provides a embedment package in advance.

The application provides a embedment packing adopts following technical scheme in advance:

the utility model provides a embedment packing in advance, includes the syringe ladle body, the one end of syringe ladle body is connected with a connector, sliding connection has a piston in the syringe ladle body, one side that the piston deviates from the connector is connected with the push rod, the one end that the piston was kept away from to the push rod is located outside the syringe ladle body, installed the decompression sealing cap on the connector, the decompression sealing cap can be right thermal expansion when the syringe ladle body high temperature sterilization reduces the pressure, be equipped with the locking subassembly that is used for restricting the push rod and slides between syringe ladle body and the push rod.

Through adopting above-mentioned technical scheme, when transporting and carrying out high temperature sterilization to the medicine in the syringe ladle body to embedment packing in advance, under the locking of locking subassembly to the push rod is spacing, avoid the relative syringe ladle body free slip of push rod, then under the closure of decompression closing cap to the connector, not only reduced because of bumping the possibility that causes the interior medicine loss of syringe ladle body to the push rod mistake, and under the decompression effect of decompression closing cap in to the syringe ladle body, the liquid in the syringe ladle body when having reduced high temperature sterilization is to the impetus of piston and push rod and reduced the pressure that comes from the interior liquid of syringe ladle body that the syringe ladle body lateral wall received, thereby improved the protection to the syringe ladle body, improved the stability of medicine in the syringe ladle body internal storage.

Optionally, the connector is luer, the decompression sealing cap includes body and fixes the end plate in pipe portion one end, the body with luer connects sealing connection, luer leaves the interval between the one end opening that deviates from the syringe ladle body and the end plate and forms the air compression chamber.

Through adopting above-mentioned technical scheme, when carrying out high temperature sterilization to the liquid in the syringe ladle body, liquid thermal expansion compresses the air of air compression intracavity, can reduce the pressure of liquid in the syringe ladle body to syringe ladle body and piston, and overall structure is simple, and it is convenient to decompress, has improved the protection efficiency to the syringe ladle body when high temperature sterilization.

Optionally, the inner circumferential surface of the tube body is provided with luer lock threads, and the luer lock threads are used for connecting the tube body with luer connectors in a threaded manner.

Through adopting above-mentioned technical scheme, with body threaded connection on luer connects, not only improved staff's work efficiency, connection structure is stable moreover, has reduced because of the pressurized or the mistake bump the possibility that makes body and luer connect break away from each other.

Optionally, a ring pipe is coaxially fixed on one side of the end plate, which faces the pipe body, the cross-sectional size of the ring pipe is gradually increased from the luer connector to the end plate, the air compression cavity is an area enclosed between the ring pipe and the end plate, and one end of the luer connector, which is far away from the syringe barrel body, is abutted against the ring pipe and is communicated with the air compression cavity.

Through adopting above-mentioned technical scheme, the ring canal will luer lock line and air compression chamber keep apart each other, mutually support with the isolation environment that body itself formed, carry out dual protection to the medicine in the syringe ladle body and the medicine that probably exists in luer joint for the medicine in the syringe ladle body is changeed and is kept the pureness, is the ring canal of horn shape moreover and changes air compression.

Optionally, the push rod includes the base that deviates from piston one side with piston coaxial coupling and fixes a plurality of pterygoid laminas that deviate from piston one side at the base, and the pterygoid lamina is arranged along the length direction of syringe ladle body, the locking subassembly is including connecting a plurality of baffle that deviates from connector one end at the syringe ladle body, the baffle extends to the syringe ladle body, at least one set up a plurality of and baffle complex fore shaft on the pterygoid lamina, a plurality of fore shaft that correspond on every pterygoid lamina evenly arrange along the length direction of pterygoid lamina.

Through adopting above-mentioned technical scheme, rotate pterygoid lamina to baffle and the mutual card of fore shaft and establish, can realize the injecing of pterygoid lamina and piston position in the syringe ladle body, simple structure simple operation has improved the operating efficiency that the staff locked and removed the locking to the piston.

Optionally, the outer circumferential surface of the base is attached to the inner circumferential surface of the syringe barrel.

By adopting the technical scheme, the baffle plate has a limiting effect on the base, so that the base can not be separated from the syringe barrel body, and the complete separation of the piston and the syringe barrel body is avoided.

Optionally, an elastic pad is attached to at least one side of the baffle, and when the baffle is clamped with the locking opening, the elastic pad is elastically compressed.

Through adopting above-mentioned technical scheme, when baffle and fore shaft card and time, the elastic pad elasticity compression under the mutual extrusion of fore shaft and baffle can make the baffle establish more stably with the mutual card of fore shaft to the possibility that the baffle deviates from the fore shaft has been reduced.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the stability of the medicine stored in the syringe barrel is improved, the push rod is locked and limited through the locking assembly, the push rod is prevented from freely sliding relative to the syringe barrel, then under the condition that the pressure reducing sealing cap seals the connecting head, the possibility of medicine loss in the syringe barrel caused by mistaken collision of the push rod is reduced, under the pressure reducing effect of the pressure reducing sealing cap on the syringe barrel, the pushing effect of liquid in the syringe barrel on the piston and the push rod during high-temperature sterilization is reduced, the pressure of the liquid in the syringe barrel on the side wall of the syringe barrel is reduced, and therefore the protection of the syringe barrel is improved;

2. the protection efficiency of the syringe barrel body during high-temperature sterilization is improved, the air in the air compression cavity is compressed through liquid thermal expansion, the pressure of the liquid in the syringe barrel body on the syringe barrel body and the piston can be reduced, and the whole structure is simple and convenient to reduce pressure;

3. the ability that the medicine keeps clean in the syringe ladle body has been improved, separates luer lock line and air compression chamber each other through the ring canal, mutually supports with the isolation environment that body itself formed, carries out dual protection to the medicine in the syringe ladle body and the medicine that probably exists in luer joint for the medicine in the syringe ladle body is changeed and is kept the pureness.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a pre-filled package according to an embodiment of the present application;

FIG. 2 is a cross-sectional view showing the internal structure of the syringe barrel;

FIG. 3 is an enlarged partial schematic view of portion A of FIG. 2;

FIG. 4 is an enlarged partial schematic view of portion B of FIG. 2;

fig. 5 is a schematic structural view showing the mounting position of the baffle on the syringe barrel.

Description of reference numerals: 1. a syringe barrel; 11. calibration; 12. a luer fitting; 13. a syringe barrel base; 2. a piston; 3. a push rod; 31. a base; 32. a wing plate; 321. locking the opening; 33. a push rod seat; 4. a seal assembly; 41. decompression sealing cap; 411. a pipe body; 4111. luer lock threads; 412. an end plate; 42. a ring pipe; 421. a flow-through hole; 43. an air compression chamber; 5. a locking assembly; 51. a baffle plate; 52. an elastic pad.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses a pre-potting package. Referring to fig. 1 and 2, the pre-potting package includes a syringe barrel 1, scales 11 are provided on the syringe barrel 1, one end of the syringe barrel 1 is connected with a connector, the connector may be a luer connector 12, a nipple for a syringe, etc., in the embodiment of the present application, the connector is the luer connector 12; the other end of the syringe barrel body 1 is sleeved with and fixed with a syringe barrel seat 13, the syringe barrel body 1 is connected with a piston 2 in a sliding mode, one side, facing the syringe barrel seat 13, of the piston 2 is connected with a push rod 3, one end, far away from the piston 2, of the push rod 3 is located outside the syringe barrel body 1, a sealing assembly 4 is installed on the Ruhr joint 12, and a locking assembly 5 is arranged between one side, located on the syringe barrel seat 13, of the syringe barrel body 1 and the push rod 3.

Referring to fig. 3, the sealing assembly 4 includes a pressure reducing sealing cap 41, the pressure reducing sealing cap 41 includes a tubular body 411 with a circular cross section and an end plate 412 fixed to one end of the tubular body 411, the tubular body 411 can be connected with the luer 12 in a sealing manner by interference fit, screw connection or the like, in the embodiment of the present application, the tube 411 is connected with the luer 12 in a sealing manner by means of a threaded connection, luer lock threads 4111 for matching with the external threads of the luer connector 12 are formed on the inner circumferential surface of the tube 411, a collar 42 is further fixed coaxially with the tube 411 on the side of the end plate 412 facing the inside of the tube 411, the cross-sectional dimension of the collar 42 increases from the luer 12 to the end plate 412, so that the collar 42 is flared, the end of the collar 42 facing away from the end plate 412 is defined as a flow hole 421, the size of the flow hole 421 is the same as the opening of the luer 12 facing away from the syringe barrel 1, and the area enclosed by the collar 42 and the end plate 412 is defined as an air compression chamber 43.

When the end of the luer 12 opposite to the syringe barrel 1 needs to be closed, the tube 411 is screwed to move the tube 411 in the direction of the syringe barrel 1 through the thread matching between the luer lock 4111 and the luer 12 until the end of the collar 42 opposite to the end plate 412 and the end of the luer 12 opposite to the syringe barrel 1 are tightly pressed against each other, so that the opening of the flow hole 421 and the opening of the luer 12 opposite to the syringe barrel 1 are communicated with each other, thereby sealing the luer 12 on the syringe barrel 1.

Because for liquid medicine, the air is more easily compressed, so when carrying out high temperature sterilization to the liquid in the syringe ladle body 1, because syringe ladle body 1 and air compression chamber 43 communicate each other, the liquid thermal expansion can compress the air in the air compression chamber 43, the pushing effort of the liquid in the syringe ladle body 1 to piston 2 and push rod 3 has not only been reduced, and the pressure that comes from the liquid in the syringe ladle body 1 that the syringe ladle body 1 lateral wall received has been reduced, thereby reduced push rod 3 and pushed away from syringe ladle body 1 and caused the loss to the medicine in the packing or cause the possibility of damaging to the encapsulation packing in advance to syringe ladle body 1 lateral wall pressure is too big, improved the stability that the medicine stored in syringe ladle body 1.

Referring to fig. 2, the push rod 3 includes a disk-shaped base 31 disposed on the syringe barrel 1, the base 31 is disposed coaxially with the syringe barrel 1, the outer peripheral surface of the base 31 is attached to the inner peripheral surface of the syringe barrel 1, the piston 2 is connected to one side of the base 31 facing the luer 12, four rectangular wing plates 32 are fixed to one side of the base 31 facing away from the piston 2, the wing plates 32 are disposed along the length direction of the syringe barrel 1, the four wing plates 32 are uniformly distributed around the circumference of the base 31, the four wing plates 32 are cross-shaped, and a push rod seat 33 is fixed to one end of each of the four wing plates 32 facing away from the base 31 so that a worker can push and pull the wing plates 32, the base 31 and the piston 2.

Referring to fig. 4 and 5, the locking assembly 5 comprises four baffles 51 disposed on the inner circumferential surface of the syringe barrel 1, the baffles 51 being secured to the syringe barrel 1 by bonding, welding, detachable connection or the like, in the present embodiment, after the plunger 2 and the base 31 are placed in the syringe barrel 1, the baffle 51 is connected to the syringe barrel 1 by welding, the baffle 51 extends into the syringe barrel 1, the baffle 51 is close to the opening of the syringe barrel 1 away from the luer 12, the four baffles 51 are uniformly distributed around the axis of the syringe barrel body 1, the outer side of each wing plate 32 is respectively provided with a plurality of locking notches 321 matched with the baffles 51, the plurality of locking notches 321 corresponding to each wing plate 32 are uniformly arranged along the length direction of the wing plate 32, the locking notches 321 on the four wing plates 32 are divided into a plurality of groups, and each group of locking notches 321 is located in the same plane to ensure that the locking notches 321 on the four wing plates 32 can be mutually clamped with the four baffles 51 at the same time.

When the pre-encapsulation package and the medicine in the pre-encapsulation package are transferred, the wing plates 32 can be rotated relative to the syringe barrel body 1 to clamp the four baffle plates 51 at the opening of the syringe barrel body 1 in the four locking openings 321 of the four wing plates 32 respectively, the wing plates 32 are prevented from sliding relative to the syringe barrel body 1 by the mutual clamping of the baffle plates 51 and the locking openings 321, and the baffle plates 51 also have a limiting function on the base 31, so that the base 31 cannot be separated from the syringe barrel body 1, the phenomenon that the push rod 3 drives the piston 2 to be separated from the opening of the syringe barrel body 1 due to mistaken collision or thermal expansion of high-temperature sterilized liquid is avoided, and the storage stability of the pre-encapsulation package on the medicine is further improved; when the piston 2 needs to be pushed, the worker only needs to rotate the wing plates 32 again to enable the four baffles 51 to be respectively positioned between every two wing plates 32, and then the wing plates 32 can be freely pushed and pulled.

Referring to fig. 4, an elastic pad 52 is further respectively attached to two opposite sides of each baffle 51, and when the baffle 51 is engaged with the locking notch 321, the elastic pad 52 is elastically compressed, so that the baffle 51 and the locking notch 321 are more stably engaged with each other, and the possibility that the baffle 51 is disengaged from the locking notch 321 is reduced; in addition, the two opposite sides or one side of the baffle 51 is also provided with a guide angle so that the operator can easily rotate the wing plate 32 to clamp the baffle 51 in the locking notch 321.

The implementation principle of the pre-filling and sealing package in the embodiment of the application is as follows: screwing the tube body 411 to enable the tube body 411 to move towards the direction of the syringe barrel body 1 through the thread matching of the luer lock thread 4111 and the luer connector 12, until one end of the ring tube 42 departing from the end plate 412 and one end of the luer connector 12 departing from the syringe barrel body 1 are tightly pressed against each other, and the flow hole 421 and one end opening of the luer connector 12 departing from the syringe barrel body 1 are communicated with each other; the four baffles 51 at the opening of the syringe barrel body 1 are respectively clamped in the four locking openings 321 of the four wing plates 32 by the rotating wing plates 32, and the push rod 3 is locked relative to the syringe barrel body 1 by the mutual clamping of the baffles 51 and the locking openings 321, so that the medicine in the syringe barrel body 1 is stably stored.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A pre-filled and sealed package characterized in that: including syringe ladle body (1), the one end of syringe ladle body (1) is connected with a connector, sliding connection has a piston (2) in syringe ladle body (1), one side that piston (2) deviate from the connector is connected with push rod (3), the one end that piston (2) were kept away from in push rod (3) is located outside syringe ladle body (1), installed decompression closing cap (41) on the connector, decompression closing cap (41) can be right thermal expansion when syringe ladle body (1) high temperature sterilization reduces the pressure, be equipped with between syringe ladle body (1) and push rod (3) and be used for restricting locking subassembly (5) that push rod (3) slided.

2. A pre-filled and sealed package according to claim 1, wherein: the connector is luer (12), decompression sealing cap (41) include body (411) and fix end plate (412) in pipe portion one end, body (411) and luer (12) sealing connection, luer (12) leave interval formation air compression chamber (43) between one end opening that deviates from syringe ladle body (1) and end plate (412).

3. A pre-filled and sealed package according to claim 2, wherein: luer lock grains (4111) are formed in the inner circumferential surface of the tube body (411), and the luer lock grains (4111) are used for connecting the tube body (411) with a luer connector (12) in a threaded mode.

4. A pre-filled and sealed package according to claim 2, wherein: a ring pipe (42) is coaxially fixed on one side of the end plate (412) facing the pipe body (411), the section size of the ring pipe (42) increases gradually from the luer (12) to the direction of the end plate (412), the air compression cavity (43) is an area enclosed between the ring pipe (42) and the end plate (412), and one end of the luer (12) departing from the syringe barrel body (1) is abutted against the ring pipe (42) and is communicated with the air compression cavity (43).

5. A pre-filled and sealed package according to claim 1, wherein: push rod (3) include with piston (2) coaxial coupling's base (31) and fix a plurality of pterygoid lamina (32) that deviate from piston (2) one side in base (31), and pterygoid lamina (32) are arranged along the length direction of syringe ladle body (1), locking subassembly (5) are including connecting a plurality of baffle (51) that deviate from connector one end in syringe ladle body (1), baffle (51) extend in to syringe ladle body (1), at least one seted up a plurality of and baffle (51) complex fore-shaft (321) on pterygoid lamina (32), and the length direction of pterygoid lamina (32) is evenly arranged along a plurality of fore-shaft (321) that correspond on every pterygoid lamina (32).

6. A pre-filled and sealed package according to claim 5, wherein: the outer peripheral surface of the base (31) is attached to the inner peripheral surface of the syringe barrel body (1).

7. A pre-filled and sealed package according to claim 5, wherein: at least one side of the baffle (51) is provided with an elastic pad (52) in an attached mode, and when the baffle (51) is clamped with the locking notch (321), the elastic pad (52) is elastically compressed.