CN215309033U

CN215309033U - Syringe, high pressure injector and angiographic injection system

Info

Publication number: CN215309033U
Application number: CN202023347339.9U
Authority: CN
Inventors: 王五星; 王德忍
Original assignee: Shenzhen Antmed Co ltd
Current assignee: Shenzhen Antmed Co ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-12-28
Anticipated expiration: 2030-12-31

Abstract

The utility model discloses a needle cylinder, a high-pressure injector and an angiographic injection system, wherein the needle cylinder comprises a cylinder body, a piston and a reinforcing structure, a liquid storage cavity is formed in the cylinder body, the cylinder body is provided with an open end and a connecting end opposite to the open end, the connecting end of the cylinder body is provided with an inlet and an outlet which are communicated with the liquid storage cavity, the piston is movably arranged in the liquid storage cavity, and the reinforcing structure is arranged on the end face of the connecting end, which is far away from the open end. The application provides a cylinder can directly accomplish the suction and the output of liquid medicine, need not to change the pipeline, and the operation is simple and convenient more. In addition, the additional strengthening can strengthen the structural strength of link, avoids the link to expose, and the protection link can not damage under the combined action of the thrust of liquid medicine and the resistance that the cylinder mounting structure butt was applyed when annotating the liquid.

Description

Syringe, high pressure injector and angiographic injection system

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a needle cylinder, a high-pressure injector and an angiography injection system.

Background

High pressure injectors are commonly used in angiographic examination procedures, primarily for injecting contrast media to sharpen the angiographic image. In order to facilitate the fixed installation of the syringe for injecting the contrast medium and prevent the syringe from falling, the high-pressure injector is provided with a syringe mounting structure, and after the common syringe is installed in the syringe mounting structure, because one end of the syringe for discharging liquid can be subjected to larger thrust of liquid and the limited resistance of the syringe mounting structure in the high-pressure liquid injection process, the part of one end of the syringe for discharging liquid, which is abutted to the syringe mounting structure, is very easy to damage.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a needle cylinder, aiming at improving the structural strength of the needle cylinder and avoiding the damage of the needle cylinder.

In order to achieve the above object, the present invention provides a syringe applied to a high pressure injector, the syringe including:

the liquid storage barrel comprises a barrel body, wherein a liquid storage cavity is formed in the barrel body, the barrel body is provided with an opening end with an opening and a connecting end opposite to the opening end, and the connecting end of the barrel body is provided with an inlet and an outlet communicated with the liquid storage cavity;

the piston is movably arranged in the liquid storage cavity; and

and the reinforcing structure is arranged on the end face of the connecting end, which deviates from the opening.

In one embodiment of the present application, a surface of the reinforcing structure facing away from the barrel body is parallel to a cross-section of the needle barrel;

and/or the circumferential side surface of the reinforcing structure is arranged in a coplanar manner with the circumferential side surface of the cylinder body.

In an example embodiment of the present application, the reinforcing structure includes a plurality of first reinforcing ribs, and the plurality of first reinforcing ribs are formed by radiating in a circumferential direction around a central axis of the tube main body.

In an exemplary embodiment of the present application, the number of the first reinforcing ribs is at least three, and a distance between end portions of any two adjacent first reinforcing ribs facing away from the central axis is defined as W1, and a distance between end portions of another two adjacent first reinforcing ribs facing away from the central axis is defined as W2, which satisfies the relationship: w1 ═ W2.

In an embodiment of the present application, the reinforcing structure further includes a second reinforcing rib, the second reinforcing rib is disposed in a circular ring shape around a central axis of the cylinder body, and the second reinforcing rib is connected to the first reinforcing rib.

In an example embodiment of the present application, the second reinforcing rib is provided with a plurality of second reinforcing ribs arranged in a concentric ring shape, and a side surface of the second reinforcing rib located on the outermost side, which is away from the central axis, is coplanar with the circumferential side surface of the tube body.

In an example embodiment of the present application, the connecting end of the cartridge body is disposed in a frustum shape, and the first reinforcing rib and the second reinforcing rib are both connected to a surface of the connecting end away from the opening end.

In one embodiment of the present application, the reinforcing structure is an integral structure with the cartridge body.

The present invention also proposes a high-pressure injector comprising a needle cylinder comprising:

the piston is movably arranged in the liquid storage cavity; and

The present invention also provides an angiographic injection system comprising a high pressure injector comprising a syringe, said syringe comprising:

the piston is movably arranged in the liquid storage cavity; and

The needle cylinder provided by the technical scheme of the utility model is applied to a high-pressure injector and comprises a cylinder body and a piston, wherein the cylinder body is provided with an opening end and a connecting end, a liquid storage cavity is formed in the cylinder body, the connecting end is provided with an inlet and an outlet which are communicated with the liquid storage cavity, and the piston is movably arranged in the liquid storage cavity. When the liquid medicine storage device is used, the inlet and the outlet of the needle cylinder can be communicated with an external infusion pipeline firstly, then the piston is pulled towards the opening end, the liquid medicine can be led into the liquid storage cavity from the inlet, and finally the piston is pushed towards the connecting end, so that the liquid medicine in the liquid storage cavity can be output from the outlet. So, the syringe that this application provided self just can accomplish the suction and the output of liquid medicine, need not to change the pipeline, and the operation is more simple and convenient, is difficult for being polluted, and the security is higher.

In addition, the cylinder that this application provided still is equipped with additional strengthening deviating from open-ended terminal surface at the link, and additional strengthening can strengthen the structural strength of link, avoids the link to expose, and the protection link can not damage under the combined action of the thrust of liquid medicine and the resistance that the cylinder mounting structure butt was applyed when annotating the liquid.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic view of the structure of one embodiment of the syringe of the present invention;

fig. 2 is a cross-sectional view of the syringe heating structure shown in fig. 1.

The reference numbers illustrate:

the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions 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 a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout is to include three juxtapositions, exemplified by "A and/or B," including either the A or B arrangement, or both A and B satisfied arrangement. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

Referring to fig. 1 and 2, the present invention provides a syringe 100, and the syringe 100 is applied to a high pressure injector (not shown) including a syringe mounting structure in which a receiving chamber is formed, and the syringe 100 is mounted in the receiving chamber. The two opposite ends of the accommodating cavity are provided with abutting surfaces, and the two abutting surfaces are parallel planes.

Referring to fig. 1, in an embodiment of the present application, the syringe 100 includes a barrel body 10, a piston 30 and a reinforcing structure 50, a liquid storage chamber 10a is formed in the barrel body 10, the barrel body 10 has an open end 11 with an opening 10b and a connecting end 13 opposite to the open end 11, the connecting end 13 of the barrel body 10 is provided with an inlet 10c and an outlet 10d communicating with the liquid storage chamber 10a, the piston 30 is movably disposed in the liquid storage chamber 10a, and the reinforcing structure 50 is disposed on an end surface of the connecting end 13 away from the opening 10 b.

For ease of manufacturing, the inlet 10c and the outlet 10d may both be provided at the end face of the connecting end 13 facing away from the open end 11. In the leading-in stock solution chamber 10a of liquid medicine from import 10c in the liquid medicine container for the convenience of going into, make things convenient for export 10d and outside infusion tube coupling simultaneously, avoid the pipeline to buckle, influence the liquid medicine circulation, can locate a barrel body 10 with import 10c and be located the circumference side of link 13, locate the link 13 with export 10d and deviate from the terminal surface of open end 11.

In order to enhance the sealing property of the connection between the cylinder body 10 and the piston 30 and to prevent the liquid medicine in the liquid storage cavity 10a from leaking out from the opening end 11, a rubber plug 71 can be sleeved on the surface of the piston 30, and the rubber plug 71 can be made of polyvinyl chloride, rubber or silica gel and other materials.

The syringe 100 provided by the technical scheme of the utility model is applied to a high-pressure injector, the syringe 100 comprises a syringe body 10 and a piston 30, the syringe body 10 is provided with an opening end 11 and a connecting end 13, a liquid storage cavity 10a is formed in the syringe body 10, the connecting end 13 is provided with an inlet 10c and an outlet 10d which are communicated with the liquid storage cavity 10a, and the piston 30 is movably arranged in the liquid storage cavity 10 a. When the syringe is used, the inlet 10c and the outlet 10d of the syringe 100 may be first communicated with an external infusion tube, then the piston 30 is pulled toward the opening end 11, so that the liquid medicine may be introduced into the liquid storage chamber 10a from the inlet 10c, and finally the piston 30 is pushed toward the connecting end 13, so that the liquid medicine in the liquid storage chamber 10a may be output from the outlet 10 d. So, the syringe 100 that this application provided just can accomplish the inhaling and the output of liquid medicine by self, need not to change the pipeline, and the operation is more simple and convenient, and difficult quilt pollutes, and the security is higher.

In addition, the syringe 100 that this application provided still is equipped with additional strengthening 50 at the terminal surface that link 13 deviates from opening 10b, and additional strengthening 50 can strengthen the structural strength of link 13, avoids link 13 to expose, and protection link 13 can not damage under the combined action of the thrust of liquid medicine and the resistance that the syringe mounting structure butt was applyed when annotating the liquid.

Referring to fig. 1, in one embodiment of the present application, the surface of the reinforcing structure 50 facing away from the cartridge body 10 is parallel to the cross-section of the syringe 100. To facilitate the manufacture and installation of the syringe mounting structure, and to facilitate the manufacture of the relief ports corresponding to the inlet 10c and the outlet 10d, the opposite ends of the syringe mounting structure are generally arranged as planes. The surface of deviating from a section of thick bamboo body 10 with additional strengthening 50 is parallel with the cross section of cylinder 100, can make additional strengthening 50 when the link 13 of protection section of thick bamboo body 10 is not impaired, can also increase additional strengthening 50 and cylinder mounting structure's area of contact, makes additional strengthening 50 be difficult for damaging self structure under the combined action of the resistance that the thrust of liquid medicine and cylinder mounting structure butt were exerted annotating the liquid in-process. Meanwhile, as the contact surface area of the needle cylinder 100 and the needle cylinder mounting structure is increased, the stability of the needle cylinder 100 when mounted in the accommodating cavity can be enhanced.

Referring to fig. 1, in one embodiment of the present application, the circumferential side surface of the reinforcing structure 50 is disposed coplanar with the circumferential side surface of the cartridge body 10. Thus, the reinforcing structure 50 can prevent the connection end 13 of the protection cylinder body 10 from being damaged, and can save the material for manufacturing the reinforcing structure 50, thereby reducing the manufacturing cost. Meanwhile, if the cross-sectional area of the reinforcing structure 50 is larger than that of the barrel body 10, the volume of the accommodating cavity needs to be set to be the size capable of accommodating the reinforcing structure 50, the circumferential side surface of the reinforcing structure 50 is coplanar with the circumferential side surface of the barrel body 10, the size of the accommodating cavity formed by the fact that the sectional area of the reinforcing structure 50 is larger than that of the barrel body 10 can be reduced, the gap between the circumferential side surface of the barrel body 10 and the wall of the accommodating cavity can be reduced, the stability of the installed needle cylinder 100 is enhanced, and the phenomenon that the needle cylinder 100 is shaken and deviated in the liquid injection process to influence liquid injection is avoided.

Referring to fig. 1, in an exemplary embodiment of the present application, the reinforcing structure 50 includes a plurality of first reinforcing ribs 51, and the plurality of first reinforcing ribs 51 are formed by radiating in a circumferential direction around a central axis of the cylinder body 10. First strengthening rib 51 can follow the center of the link 13 of a section of thick bamboo body 10 and extend to the circumference side of a section of thick bamboo body 10 along arbitrary radial direction to distribute on the surface that the link 13 of a section of thick bamboo body 10 deviates from open end 11, the structural strength of the link 13 of a section of thick bamboo body 10 can be strengthened to a plurality of first strengthening ribs 51 that so set up, protects the link 13 of a section of thick bamboo body 10 from a plurality of azimuths, avoids link 13 to damage.

Referring to fig. 1, in an exemplary embodiment of the present application, the number of the first reinforcing ribs 51 is at least three, and a distance between end portions of any two adjacent first reinforcing ribs 51 facing away from the central axis is defined as W1, and a distance between end portions of another two adjacent first reinforcing ribs 51 facing away from the central axis is defined as W2, which satisfies the relationship: w1 ═ W2.

First strengthening rib 51 that so sets up can be even distribute in the surface that link 13 deviates from open end 11 to make link 13 can even atress, thereby further strengthen the structural strength of link 13, avoid link 13 to damage.

With further reference to fig. 1, in order to make the acting force applied to the connecting end 13 more uniform, the number of the first reinforcing ribs 51 may be set to be even, and the two first reinforcing ribs 51 are arranged along the same radial direction of the cartridge body 10.

Referring to fig. 1, in an exemplary embodiment of the present application, the reinforcing structure 50 further includes a second rib 53, the second rib 53 is disposed in a circular ring shape around a central axis of the cylinder body 10, and the second rib 53 is connected to the first rib 51. The second strengthening rib 53 that is the ring setting not only can further strengthen the structural strength of link 13, can also be connected with each first strengthening rib 51 to strengthen the structural strength of first strengthening rib 51, avoid first strengthening rib 51 because the effort that receives is too big and the rupture damage. The second reinforcing beads 53 and the first reinforcing beads 51 may be smoothly connected to each other for convenience of manufacturing.

Referring to fig. 1, in an exemplary embodiment of the present application, the second reinforcing rib 53 is provided with a plurality of second reinforcing ribs 53, the plurality of second reinforcing ribs 53 are arranged in concentric circles, and a side surface of the second reinforcing rib 53 located at the outermost side, which is away from the central axis, is coplanar with a circumferential side surface of the cartridge body 10. In this way, the plurality of second beads 53 can be coupled to each portion of each first bead 51 to support different portions of the first bead 51, thereby further enhancing the structural strength of the first bead 51 and enhancing the coupling strength of the first bead 51 with the coupling end 13 of the cartridge body 10. The side face of deviating from the central axis with the second strengthening rib 53 in the outermost side sets up with the circumference side coplane of a section of thick bamboo body 10, can reduce the gap between the chamber wall that holds the chamber and the circumference side of a section of thick bamboo body 10, strengthens cylinder 100 and installs the steadiness in holding the intracavity, avoids cylinder 100 to take place to rock holding the intracavity.

Referring to fig. 2, in an exemplary embodiment of the present disclosure, the connecting end 13 of the cylinder body 10 is disposed in a frustum shape, and the first and second ribs 51 and 53 are connected to a surface of the connecting end 13 away from the open end 11. Connecting end 13 with a section of thick bamboo body 10 is the frustum form setting, can make connecting end 13 and piston 30's shape phase-match to when annotating the liquid, guarantee that the liquid medicine in the stock solution chamber 10a can all be discharged from export 10d under piston 30's promotion, avoid remaining the liquid medicine in the stock solution chamber 10a, cause the waste. Because the abutting surfaces at the two opposite ends of the accommodating cavity are generally arranged into two parallel planes for facilitating the manufacture and installation of the syringe installation structure, the frustum-shaped connecting end 13 abutting against the abutting surfaces is easily damaged due to overlarge acting force applied in the liquid injection process. With first strengthening rib 51 and second strengthening rib 53 lug connection in the link 13 of a section of thick bamboo body 10, can strengthen not only can strengthen the structural strength of link 13 through first strengthening rib 51 and second strengthening rib 53, can also protect the link 13 of a section of thick bamboo body 10, avoid the link 13 of a section of thick bamboo body 10 directly to contact with the butt face, reduce the possibility that link 13 damaged.

In an exemplary embodiment of the present application, the reinforcing structure 50 and the cylinder body 10 may be integrally formed for facilitating the molding process. Of course, the reinforcing structure 50 can be detachably connected to the cylinder 100 by means of snap-fit, plug-in or screw-connection for maintenance replacement of the reinforcing structure 50.

See fig. 2. In one embodiment of the present application, the syringe 100 further includes a liquid inlet tube 73 communicated with the inlet 10c, an end of the liquid inlet tube 73 opposite to the inlet 10c may be connected to a puncture needle 75 for puncturing a liquid medicine container (medicine bottle or medicine bag, etc.) containing liquid medicine to introduce the liquid medicine from the liquid medicine container into the liquid storage chamber 10a when the piston 30 is pulled to move toward the opening end 11.

The puncture needle 75 includes a liquid inlet passage for delivering the liquid medicine, and the liquid inlet passage is communicated with the liquid inlet pipe 73. The puncture outfit may be formed with an air inlet passage for equalizing air pressure between the inside and the outside of the medical fluid container for sucking the medical fluid. A filtering membrane can be arranged in the air inlet channel to prevent external dust and impurities from entering the liquid medicine container to pollute the liquid medicine and cause liquid medicine infection.

In order to prevent the liquid medicine from flowing back to the liquid medicine container from the liquid inlet pipe 73 during the liquid injection process, the syringe 100 may further include a check valve 77 disposed on the liquid inlet pipe 73 to ensure that the liquid medicine can only be conducted from the puncture device to the liquid storage chamber 10a in one-way manner, thereby preventing the liquid medicine from flowing back.

Referring to FIG. 2, in one embodiment of the present application, cartridge 100 further includes a spout 79 in communication with outlet 10d, spout 79 being in communication with outlet 10 d. Drain pipe 79 is used for and outside infusion pipeline intercommunication, and it can be directly connected through bonding or the mode of pegging graft with outside pipeline, also can set up connector 91 in the one end that drain pipe 79 deviates from export 10d, is connected with outside infusion pipeline through connector 91.

The present invention further provides a high pressure injector, which includes a syringe mounting structure and a syringe 100, and the specific structure of the syringe 100 refers to the above embodiments, and since the high pressure injector adopts all technical solutions of all the above embodiments, the high pressure injector at least has all beneficial effects brought by the technical solutions of the above embodiments, and details are not repeated herein. Wherein, a receiving cavity is formed in the syringe mounting structure, and the syringe 100 is mounted in the receiving cavity.

The high-pressure injector further comprises a driving motor and a push rod, the push rod is connected with the piston 30, the driving motor can drive the push rod to drive the piston 30 to move in the liquid storage cavity 10a, when the driving motor drives the push rod to drive the piston 30 to move towards the opening end 11, the liquid medicine in the liquid storage cavity 10a can be guided into the liquid medicine in the external liquid medicine container, and the driving electrode drives the piston 30 to drive the piston 30 to move towards the connecting end 13, so that the liquid medicine can be discharged from the outlet 10 d.

The present invention further provides an angiographic injection system, which includes a high-pressure injector, and the specific structure of the high-pressure injector refers to the above embodiments, and since the angiographic injection system adopts all technical solutions of all the above embodiments, the angiographic injection system at least has all the beneficial effects brought by the technical solutions of the above embodiments, and details are not repeated herein. Wherein, a receiving cavity is formed in the syringe mounting structure, and the syringe 100 is mounted in the receiving cavity.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A syringe for use with a high pressure injector, the syringe comprising:

the piston is movably arranged in the liquid storage cavity; and

2. The syringe of claim 1, wherein a surface of the reinforcing structure facing away from the barrel body is parallel to a cross-section of the syringe;

3. The cylinder of claim 1, wherein the reinforcing structure includes a plurality of first reinforcing ribs, and the plurality of first reinforcing ribs are formed by being projected in a circumferential direction around a central axis of the cylinder body.

4. The cylinder of claim 3, wherein the number of said first ribs is at least three, and the distance between the ends of any two adjacent first ribs facing away from said central axis is defined as W1, and the distance between the ends of another two adjacent first ribs facing away from said central axis is defined as W2, which satisfies the relationship: w1 ═ W2.

5. The syringe of claim 3 wherein said reinforcing structure further comprises a second rib disposed in a circular ring about the central axis of said barrel body, said second rib being connected to said first rib.

6. The syringe of claim 5 wherein said second rib has a plurality of said second ribs arranged in concentric circles, and wherein a side of said second rib located outermost away from said central axis is coplanar with a circumferential side of said barrel body.

7. The syringe of claim 5 wherein said connecting end of said barrel body is frustoconical and said first rib and said second rib are both connected to a surface of said connecting end facing away from said open end.

8. The needle cartridge of any one of claims 1 to 7 wherein said reinforcing structure is of unitary construction with said cartridge body.

9. A high pressure injector, characterized in that it comprises a syringe according to any one of claims 1 to 8.

10. An angiographic injector system comprising a syringe according to any of claims 1 to 8;

alternatively, the angiographic injector system comprises the high pressure injector of claim 9.