CN211724255U

CN211724255U - Syringe and high-pressure injector

Info

Publication number: CN211724255U
Application number: CN201921849100.6U
Authority: CN
Inventors: 王五星; 于敬军; 王德忍
Original assignee: Guangdong Ante Medical Co ltd
Current assignee: Guangdong Ante Medical Co ltd
Priority date: 2019-10-30
Filing date: 2019-10-30
Publication date: 2020-10-23
Anticipated expiration: 2029-10-30

Abstract

The utility model discloses a cylinder and high pressure syringe. The syringe comprises a syringe body, wherein one end of the syringe body is provided with an accommodating cavity, a first clamping part and a limiting part are sequentially arranged on the outer wall of the syringe body from the cavity opening of the accommodating cavity to the cavity bottom of the accommodating cavity, the first clamping part is clamped with the high-pressure syringe body, and the limiting part is abutted against one side, facing the cavity bottom of the accommodating cavity, of the high-pressure syringe body; and the needle head connecting pipe is connected with one end of the barrel body, which deviates from the cavity opening of the accommodating cavity, and is communicated with the accommodating cavity. The technical scheme of the utility model the dismouting efficiency of high pressure syringe has been improved.

Description

Syringe and high-pressure injector

Technical Field

The utility model relates to a high pressure syringe technical field, in particular to cylinder and high pressure syringe.

Background

High pressure syringes are mainly used for injecting liquids such as contrast media, saline, etc. into the human body to enhance the effect of medical imaging, and thus are becoming one of the important devices in medical equipment. The connection mode of the syringe and the high-pressure injection body in the related technology is mainly that the syringe is clamped by arranging two clamping plates, and then the two clamping plates are locked by a locking device. Specifically, when the syringe is installed, the two clamping plates are opened firstly, the syringe is inserted between the two clamping plates, and then the two clamping plates are locked by the locking device so as to clamp and fix the syringe; when the syringe is disassembled, the locking device is unlocked, and then the two clamping plates are opened to take out the syringe. Because the disassembly and assembly process is complex and tedious, the disassembly and assembly efficiency of the high-pressure injector is reduced.

The above is only for the purpose of assisting understanding of the technical solutions of the present application, and does not represent an admission that the above is prior art.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims at providing a cylinder is applied to high-pressure syringe, aims at improving high-pressure syringe's dismouting efficiency.

In order to achieve the above object, the present invention provides a syringe comprising:

the syringe comprises a barrel body, wherein one end of the barrel body is provided with an accommodating cavity, a first clamping part and a limiting part are sequentially arranged on the outer wall of the barrel body from a cavity opening of the accommodating cavity to the cavity bottom of the accommodating cavity, the first clamping part is clamped on the high-pressure syringe body, and the limiting part is abutted against one side, facing the cavity bottom of the accommodating cavity, of the high-pressure syringe body; and

and the needle head connecting pipe is connected with one end of the barrel body, which deviates from the cavity opening of the accommodating cavity, and is communicated with the accommodating cavity.

In an embodiment of the present invention, the outer wall of the barrel body is provided with a clamping groove, and the clamping groove forms the first clamping portion.

The utility model discloses an in the embodiment, the outer wall of a section of thick bamboo body is equipped with the sand grip, the sand grip deviates from the outer wall of a section of thick bamboo body is equipped with the draw-in groove.

In an embodiment of the present invention, the protruding strips extend along a circumferential direction of the tube body, and the slots are formed along an extending direction of the protruding strips;

and/or, the outer wall interval of a section of thick bamboo body is equipped with two at least sand grips, two at least the sand grip centers on the center evenly distributed of a section of thick bamboo body, each the sand grip all is equipped with the draw-in groove.

In an embodiment of the present invention, the outer wall of the barrel body is provided with a protruding plate, the protruding plate forms the limiting portion, and the protruding plate abuts against one side of the high-pressure injector body facing the cavity bottom of the accommodating cavity.

In an embodiment of the present invention, the protruding plate is disposed annularly and surrounds the outside of the needle cylinder;

or, the flange is the arc setting, the outer wall of a section of thick bamboo body is equipped with the polylith the flange, the polylith the even spaced of limiting plate encloses to be located the outside of cylinder.

In an embodiment of the present invention, the tube body, the first joint portion and the limiting portion are integrally formed.

The utility model also provides a high-pressure injector, which comprises a high-pressure injector body, a needle cylinder and a piston; the needle cylinder is connected with the high-pressure injector body and comprises a cylinder body, an accommodating cavity is formed in one end of the cylinder body, a first clamping portion and a limiting portion are sequentially arranged on the outer wall of the cylinder body in the direction from a cavity opening of the accommodating cavity to a cavity bottom of the accommodating cavity, the first clamping portion is clamped with the high-pressure injector body, and the limiting portion abuts against one side, facing the cavity bottom of the accommodating cavity, of the high-pressure injector body; the needle head connecting pipe is connected to one end, deviating from the cavity opening of the accommodating cavity, of the barrel body and is communicated with the accommodating cavity;

the piston is arranged in the accommodating cavity of the needle cylinder in a sliding manner, and a second clamping portion is arranged on one side of the piston, which deviates from the cavity bottom wall of the accommodating cavity, and is clamped with the high-pressure injector body.

In an embodiment of the present invention, a side of the piston away from the cavity bottom wall of the accommodating cavity is provided with a mounting groove, in a direction from a notch of the mounting groove to a bottom of the mounting groove, a groove side wall of the mounting groove is provided with a first bump and a second bump at intervals in sequence, the first bump, the groove side wall of the mounting groove and the second bump enclose and form the second engaging portion.

In an embodiment of the present invention, a first opening is concavely disposed on a side of the first bump facing the second bump, a second opening is concavely disposed on a side of the second bump facing the first bump, and the first opening is disposed corresponding to the second opening;

and/or, the groove lateral wall of mounting groove is equipped with a plurality of first lug and a plurality of the second lug, and is a plurality of first lug and a plurality of the second lug respectively surround the center evenly distributed of mounting groove, one first lug corresponds one the second lug sets up.

The technical scheme of the utility model the cylinder is installed when the high pressure injection ware body, can realize fixing between them through first joint portion on the cylinder body and high pressure injection ware body joint in the cylinder, need not to set up two splint and carry out the centre gripping to the cylinder on the high pressure injection ware body to and set up corresponding retaining member and lock two splint. Therefore, the disassembly and assembly process of the needle cylinder and the high-pressure injector body is simplified, and the disassembly and assembly efficiency of the high-pressure injector is improved.

And the limiting part on the cylinder body in the cylinder is abutted against one side of the high-pressure injector body facing the cavity bottom of the accommodating cavity, so that the injector body can be limited in the installation process of the cylinder and the injector body, and the accurate position of the first clamping part of the injector body on the cylinder body is ensured to be clamped with the first clamping part.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be 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 structural view of an embodiment of the syringe of the present invention;

FIG. 2 is a schematic view of a partial structure of an embodiment of the high pressure syringe of the present invention;

FIG. 3 is a schematic view of a partially exploded structure of the high pressure syringe of FIG. 2;

fig. 4 is a schematic partial cross-sectional view of the high pressure syringe of fig. 2.

The reference numbers illustrate:

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

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 efforts belong to the protection scope of the present invention.

It should be noted that all the directional indicators (such as upper, lower, 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 motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

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 implicit ly 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, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

Referring to fig. 1, the present invention provides a syringe 10 for a high pressure injector.

In an embodiment of the present invention, the barrel body 11 and the needle connecting tube 12; one end of the barrel body 11 is provided with an accommodating cavity 111, in the direction from the cavity opening of the accommodating cavity 111 to the cavity bottom of the accommodating cavity 111, the outer wall of the barrel body 11 is sequentially provided with a first clamping portion 113 and a limiting portion 114, the first clamping portion 113 is clamped on the high-pressure injector body (not shown), and the limiting portion 114 abuts against one side of the high-pressure injector body (not shown) facing the cavity bottom of the accommodating cavity 111; the needle connecting tube 12 is connected to an end of the barrel body 11 away from the opening of the accommodating cavity 111 and is communicated with the accommodating cavity 111.

In an embodiment of the present invention, in order to simplify the structure of the forming mold of the needle cylinder 10, the cylinder body 11 may be a cylindrical structure. Of course, in order to increase the amount of the liquid medicine that can be accommodated in the accommodating cavity 111 in the cylinder body 11, the cylinder body 11 may be arranged in a square structure so as to form a larger accommodating cavity 111. And the first joint portion 113 of a section of thick bamboo body 11 outer wall mainly used cylinder 10 is fixed with the high pressure syringe body looks joint when installing in the syringe body, and the position that the high pressure syringe body corresponds first joint portion 113 can be provided with first connecting portion, and this first connecting portion can be with first joint portion 113 looks joint. The limiting portion 114 is mainly used for limiting the syringe body in the installation process of the syringe 10 and the syringe body, so that the situation that the installation stroke is too large, which causes influence on the clamping effect of the syringe body and the first clamping portion 113, is avoided. In addition, the needle coupling tube 12 is mainly used for coupling a needle to communicate the needle with the cylinder 10. Further, in order to facilitate the connection of the cylinder 10 with other connection tubes, the outer wall of the needle connection tube 12 is formed with external threads, so that the threaded connection of the cylinder 10 with other connection tubes can be achieved through the external threads.

The technical scheme of the utility model when cylinder 10 installs in high pressure syringe body (not shown), can realize fixing between them through first joint portion 113 and high pressure syringe body (not shown) joint on the cylinder body 11 in the cylinder 10, need not to set up two splint and carry out the centre gripping to cylinder 10 on high pressure syringe body (not shown) to and set up corresponding retaining member and lock two splint. This simplifies the process of attaching and detaching the cylinder 10 to and from the high-pressure injector body (not shown), thereby improving the efficiency of attaching and detaching the high-pressure injector.

In addition, the limit part 114 on the barrel body 11 of the syringe 10 abuts against one side of the high-pressure injector body (not shown) facing the cavity bottom of the accommodating cavity 111, so that the injector body can be limited in the installation process of the syringe 10 and the injector body, and the injector body is ensured to be accurately clamped with the first clamping part 113 at the position of the first clamping part 113 on the barrel body 11.

In an embodiment of the present invention, the outer wall of the barrel body 11 is provided with a clamping groove 113a, and the clamping groove 113a forms the first clamping portion 113.

It can be understood that the first catching portion 113 is formed by providing the catching groove 113a, the structure of the catching portion is simplified, and thus the manufacturing cost of the cylinder 10 can be reduced. The projection of the card slot 113a may be circular or square, which is not limited in this application. After the first connection portion of the high-pressure syringe is inserted into the slot 113a to clamp the cartridge body 11 and the high-pressure syringe body (not shown), it is sufficient to ensure that the slot wall of the slot 113a abuts against the first connection portion. Of course, the present application is not limited thereto, and in other embodiments, a hook may be disposed on an outer wall of the barrel body 11, and the first engaging portion 113 is formed by the hook.

In an embodiment of the present invention, the outer wall of the barrel body 11 is provided with a protruding strip 113b, and the outer wall of the protruding strip 113b departing from the barrel body 11 is provided with a slot 113 a.

It can be understood that, because the thickness of the barrel body 11 is relatively thin, the protruding strip 113b on the outer wall of the barrel body 11 is provided with a locking groove 113 a. Can guarantee that a barrel body 11 has certain intensity, avoid it to take place to damage when receiving the collision with the foreign object to the life of cylinder 10 has been prolonged.

In an embodiment of the present invention, the protruding strip 113b extends along the circumferential direction of the barrel body 11, and the engaging groove 113a is formed along the extending direction of the protruding strip 113 b.

It can be understood that the arrangement increases the area of the catching groove 113a so that the abutting area thereof with the first connecting portion of the high pressure injector body (not shown) is increased, thereby improving the stability of the connection of the cylinder 10 with the high pressure injector body (not shown).

In an embodiment of the present invention, at least two protruding strips 113b are protruded from the outer wall of the barrel body 11, the at least two protruding strips 113b are uniformly distributed around the center of the barrel body 11, and each protruding strip 113b is provided with a slot 113 a.

It can be understood that at least two raised lines 113b are arranged, the number of the clamping grooves 113a is increased, the contact area between the needle cylinder 10 and the high-pressure injector is further increased, the connection stability of the needle cylinder 10 and the high-pressure injector is improved, and the high-pressure injector can work stably and normally. The two convex strips 113b are uniformly distributed around the center of the barrel body 11, so that the uniformity of the abutting force of the barrel body 11 and a high-pressure injector body (not shown) at each position of the circumference of the barrel body 11 is ensured, and the influence of single-point stress on the connecting effect of the barrel body 11 and the high-pressure injector body is avoided. The protruding strips 113b may be provided with two, three, or four, etc., and the present application is not limited by this. Furthermore, each protruding strip 113b may be provided with one, two or three slots 113 a.

In an embodiment of the present invention, a protruding plate 114a is disposed on an outer wall of the barrel body 11, the protruding plate 114a forms the limiting portion 114, and the protruding plate 114a abuts against a side of the high-pressure syringe body (not shown) facing a bottom of the accommodating cavity 111.

It will be appreciated that the provision of the projection 114a simplifies the structure of the stopper 114, thereby reducing the manufacturing cost of the cylinder 10. Meanwhile, the strength of the cylinder 10 is also improved by the arrangement of the convex plate 114 a. Of course, the present application is not limited thereto, and in other embodiments, the outer wall of the barrel body 11 may be provided with a groove to form the limiting portion 114.

In one embodiment of the present invention, the protruding plate 114a is disposed in a ring shape and surrounds the outside of the syringe 10.

It can be understood that such arrangement increases the contact area between the protruding plate 114a and the high-pressure injector body (not shown), and improves the contact limit effect of the protruding plate 114a on the high-pressure injector body (not shown).

The utility model discloses an in the embodiment, flange 114a is the arc setting, and the outer wall of a section of thick bamboo body 11 is equipped with polylith flange 114a, the even spaced outside of locating cylinder 10 that encloses of polylith limiting plate.

It can be understood that the plurality of limit plates are arranged at regular intervals, so that the abutting limit effect of the limit part 114 on the high-pressure injector body (not shown) is ensured, and the amount of material used for forming the limit part 114 is reduced, thereby reducing the manufacturing cost of the syringe 10.

In an embodiment of the present invention, the barrel body 11, the first engaging portion 113 and the limiting portion 114 are integrally formed.

It can be understood that such an arrangement simplifies the manufacturing process of the cylinder 10, and the cylinder 10 can be manufactured by integral molding, thereby improving the production efficiency of the cylinder 10. Meanwhile, by the arrangement, the syringe 10 is ensured to have certain strength, so that the service life of the syringe 10 can be prolonged. The protruding strip 113b, the protruding plate 114a, the barrel body 11 and the needle connecting tube 12 may be an integral structure.

Please refer to fig. 2 and fig. 3 in combination, the present invention further provides a high pressure injector, which includes a high pressure injector body (not shown), a syringe 10 and a piston 50, wherein the specific structure of the syringe 10 refers to the above embodiments, and the high pressure injector adopts all technical solutions of all the above embodiments, so that the high pressure injector at least has all the beneficial effects brought by the technical solutions of the above embodiments, and no further description is provided herein. Wherein, the syringe 10 is connected to a high-pressure injector body (not shown), the piston 50 is slidably disposed in the accommodating cavity 111 of the syringe 10, one side of the piston 50 departing from the cavity bottom wall of the accommodating cavity 111 is provided with a second clamping portion 31, and the second clamping portion 31 is clamped to the high-pressure injector body (not shown).

Specifically, when the liquid medicine is contained in the containing cavity 111 of the barrel body 11 of the syringe 10, the high-pressure injector body (not shown) can drive the piston 50 to slide in the barrel body 11, and drive the liquid medicine to flow from the containing cavity 111 to the needle connecting tube 12, thereby achieving the effect of injecting the liquid medicine to the patient. The piston 50 and the high-pressure syringe body (not shown) are fixed by the second clamping portion 31 in a clamping manner, so that the assembling and disassembling process of the piston 50 and the high-pressure syringe body (not shown) is simplified, and the assembling and disassembling efficiency of the high-pressure syringe is further improved. At this time, a second connecting portion may be disposed on the high pressure syringe body (not shown) corresponding to the second engaging portion 31, and the second connecting portion may be engaged with the second engaging portion 31.

In an embodiment of the present invention, a mounting groove 33 is disposed on a side of the piston 50 away from the bottom wall of the accommodating cavity 111, and in a direction from the notch of the mounting groove 33 to the bottom of the mounting groove 33, a first protrusion 311 and a second protrusion 313 are sequentially disposed on the side wall of the mounting groove 33 at intervals, and the first protrusion 311, the side wall of the mounting groove 33, and the second protrusion 313 enclose and form the second engaging portion 31.

That is, the second connecting portion of the high-pressure injector body (not shown) can be clamped between the first protrusion 311 and the second protrusion 313 and abut against the first protrusion 311 and the second protrusion 313, so as to realize the clamping fixation of the second connecting portion of the high-pressure injector body (not shown) and the second clamping portion 31. It can be understood that the second latch portion 31 is formed by the first protrusion 311, the side wall of the mounting groove 33 and the second protrusion 313, which ensures a certain strength of the piston 50, thereby prolonging the service life thereof. The installation of the installation groove 33 provides the installation space for the first protrusion 311 and the second protrusion 313, so that the piston 50 does not need to be arranged on the outer wall of the piston 50 to affect the sealing performance between the piston 50 and the cavity side wall of the accommodation cavity 111 of the cylinder body 11.

Referring to fig. 3 and 4, in an embodiment of the present invention, a first opening 311a is concavely disposed on a side of the first bump 311 facing the second bump 313, a second opening 313a is concavely disposed on a side of the second bump 313 facing the first bump 311, and the first opening 311a is disposed corresponding to the second opening 313 a.

It can be understood that the arrangement of the first opening 311a and the second opening 313a increases the abutting area of the second connecting portion of the high pressure syringe body (not shown) and the first protrusion 311 and the second protrusion 313, so that the stability of the connection of the piston 50 and the high pressure syringe body (not shown) can be improved.

In an embodiment of the present invention, the side wall of the mounting groove 33 is provided with a plurality of first bumps 311 and a plurality of second bumps 313, the plurality of first bumps 311 and the plurality of second bumps 313 are uniformly distributed around the center of the mounting groove 33, respectively, and a first bump 311 is disposed corresponding to a second bump 313.

It can be understood that such an arrangement further increases the abutting area of the piston 50 and the high-pressure injector body (not shown), thereby further improving the stability of the connection of the piston 50 and the high-pressure injector body (not shown) to ensure stable and normal operation of the high-pressure injector. The first protrusions 311 and the second protrusions 313 are uniformly distributed around the center of the mounting groove 33, so that the uniformity of the abutting force between the piston 50 and the high-pressure syringe body (not shown) at each position of the cylinder body 11 in the circumferential direction is ensured, and the influence of a single point on the connection effect of the piston 50 and the high-pressure syringe body is avoided. Further, the plurality of first protrusions 311 and the plurality of second protrusions 313 may be spaced around the center of the mounting groove 33, respectively, to reduce the use of materials and the manufacturing cost. Of course, the plurality of first protrusions 311 and the plurality of second protrusions 313 may be respectively connected and distributed around the center of the mounting groove 33, so as to improve the clamping effect of the first protrusions 311 and the second protrusions 313 on the second connection portion of the high pressure syringe body (not shown), which is not limited in this application, and the piston 50 and the high pressure syringe body (not shown) can be stably connected.

Referring to fig. 3, in an embodiment of the present invention, the high pressure syringe further includes a rubber plug 50, the rubber plug 50 is sleeved on one side of the piston 50 facing the bottom of the accommodating cavity 111 and is abutted and sealed between the cavity sidewall of the accommodating cavity 111 and the outer wall of the piston 50.

It can be understood that the arrangement of the rubber plug 50 can increase the sealing performance between the piston 50 and the cylinder body 11, so that the situation that the liquid medicine in the accommodating cavity 111 in the cylinder body 11 flows out from the cavity side wall between the piston 50 and the accommodating cavity 111 to influence the injection effect of the high-pressure injector can be avoided.

The above is only the preferred embodiment of the present invention, and the patent scope of the present invention is not limited thereby, all the equivalent structure changes made by the contents of the specification and the drawings are utilized under the inventive concept of the present invention, or the direct/indirect application in other related technical fields is included in the patent protection scope of the present invention.

Claims

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

2. The syringe of claim 1 wherein the outer wall of the barrel body is provided with a notch, the notch forming the first engagement portion.

3. The syringe of claim 2, wherein the outer wall of the barrel body is provided with a rib, and the outer wall of the rib facing away from the barrel body is provided with the locking groove.

4. The syringe of claim 3 wherein said rib extends circumferentially of said barrel body and said notch is disposed along the direction of extension of said rib;

5. The syringe according to any one of claims 1 to 4, wherein the outer wall of the barrel body is provided with a convex plate, the convex plate forms the limiting portion, and the convex plate abuts against one side of the high-pressure injector body facing the bottom of the accommodating cavity.

6. The syringe of claim 5 wherein said flange is annular and surrounds the outside of said syringe;

or, the convex plate is arc-shaped, the outer wall of the cylinder body is provided with a plurality of convex plates which are arranged on the outer side of the cylinder in an enclosing manner at uniform intervals.

7. The syringe of claim 5 wherein said barrel body, said first snap-fit portion and said retaining portion are integrally formed.

8. A high pressure syringe, comprising:

a high pressure syringe body;

a syringe connected to the high pressure injector body, the syringe according to any one of claims 1 to 7; and

the piston is arranged in the accommodating cavity of the needle cylinder in a sliding mode, one side, deviating from the cavity bottom wall of the accommodating cavity, of the piston is provided with a second clamping portion, and the second clamping portion is clamped to the high-pressure injector body.

9. The high pressure syringe of claim 8, wherein the piston is provided with a mounting groove on a side thereof facing away from the bottom wall of the receiving chamber, and a first protrusion and a second protrusion are sequentially provided on a side wall of the mounting groove at intervals in a direction from a notch of the mounting groove to a bottom of the mounting groove, and the first protrusion, the side wall of the mounting groove, and the second protrusion enclose the second engaging portion.

10. The high pressure syringe of claim 9, wherein a side of the first protrusion facing the second protrusion is recessed with a first opening, a side of the second protrusion facing the first protrusion is recessed with a second opening, and the first opening is disposed corresponding to the second opening;