CN210020605U - Syringe and high-pressure injector - Google Patents
Syringe and high-pressure injector Download PDFInfo
- Publication number
- CN210020605U CN210020605U CN201920696802.9U CN201920696802U CN210020605U CN 210020605 U CN210020605 U CN 210020605U CN 201920696802 U CN201920696802 U CN 201920696802U CN 210020605 U CN210020605 U CN 210020605U
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- syringe
- barrel
- needle
- sleeve
- seted
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Abstract
The utility model discloses a cylinder and high pressure syringe, wherein, this cylinder is including the barrel portion and the syringe needle installation department that are connected, deviating from of syringe needle installation department the one end terminal surface of barrel portion has been seted up and has been held the chamber, the lateral wall that holds the chamber has seted up the draw-in groove, deviating from of syringe needle installation department the intercommunication has been seted up to the one end lateral wall of barrel portion hold the chamber with the mouth of stepping down of draw-in groove for the pintle of leading-in syringe needle, the diapire that holds the chamber seted up be used for with liquid is leading-in the barrel portion the intercommunicating pore of pintle. The technical proposal of the utility model aims at improving the connection stability of the needle cylinder and the needle head.
Description
Technical Field
The utility model relates to the technical field of medical treatment, in particular to needle cylinder and high-pressure injector with the same.
Background
The contrast technique is to use only the introduction of a developing agent into the organ or into the gaps around the organ, and then to form a clear and stable examination image by an image scanning device to assist in judging the health condition of the examined organ. The high-pressure injector for the existing radiography injects the developer into a human body, the high-pressure injector comprises a needle cylinder, at present, the structural design of the existing needle cylinder is unreasonable, the pressure difference resistance in the axial direction is realized after the needle cylinder is connected with a needle head, and the needle cylinder is easy to separate from the needle head after being connected with the needle head under the high-pressure state, so that the use is influenced.
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 to provide a needle cylinder, aiming at improving the connection stability of the needle cylinder and a needle head.
In order to achieve the above object, the utility model provides a needle cylinder, the needle cylinder is including the barrel portion and the syringe needle installation department that are connected, deviating from of syringe needle installation department the one end terminal surface of barrel portion has been seted up and has been held the chamber, the lateral wall that holds the chamber has seted up the draw-in groove, deviating from of syringe needle installation department the intercommunication has been seted up to the one end lateral wall of barrel portion hold the chamber with the mouth of stepping down of draw-in groove for the pintle of leading-in syringe needle, the diapire that holds the chamber seted up be used for with liquid is leading-in the barrel portion the intercommunicating.
Optionally, the syringe needle installation department includes installation department body and sleeve, the installation department body with the barrel portion is connected and is communicate, the muffjoint is located the installation department body, telescopic deviating from the one end terminal surface of barrel portion has been seted up hold the chamber, telescopic deviating from the one end lateral wall of barrel portion has been seted up let the position mouth.
Optionally, the syringe still includes the drain portion, the drain portion connect in the one end that deviates from the barrel portion of installation department body, and with the installation department body intercommunication sets up, the drain portion runs through the intercommunicating pore sets up to insert in the pintle.
Optionally, one end of the liquid guide part, which is away from the mounting part body, protrudes out of the sleeve.
Optionally, the outer diameter of the liquid guide part is arranged in a decreasing manner along the liquid feeding direction of the needle cylinder.
Optionally, the surface of the mounting part body is provided with a first thread, the inner wall of the sleeve is provided with a second thread, and the sleeve is fixedly connected to the mounting part body through the engagement of the first thread and the second thread.
Optionally, the first and second threads are both trapezoidal threads.
Optionally, a lightening hole is further formed in the side wall of the sleeve;
and/or the side wall of the sleeve is also convexly provided with an anti-skid convex rib.
Optionally, the mounting portion body is made of a poly-p-phthalic plastic.
The utility model also provides a high-pressure injector, including the push rod with as above-mentioned cylinder, push rod sliding connection in the barrel portion of cylinder.
The utility model discloses technical scheme is through providing a cylinder, this cylinder is including the barrel portion and the syringe needle installation department that are connected, wherein, deviating from of syringe needle installation department the one end terminal surface of barrel portion has been seted up and has been held the chamber, and the lateral wall that holds the chamber has seted up the draw-in groove, and the one end lateral wall that deviates from the barrel portion of syringe needle installation department sets up the intercommunication and holds the mouth of stepping down of chamber and draw-in groove, and the diapire that holds the chamber is seted up and is used for the intercommunicating pore with the leading-. When the needle cylinder is connected with the needle head, the pintle of the needle head is loaded into the accommodating cavity from the clamping groove and the abdicating opening, so that the pintle is clamped by the side wall of the accommodating cavity back from the cylinder body part, thus increasing the axial compression resistance after the connection of the needle cylinder and the needle head, improving the stability of the connection between the needle cylinder and the needle head, and ensuring the use of the high-pressure injector because the connection between the needle head and the needle cylinder is still stable even if the pressure in the needle cylinder reaches 1200 PSI.
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 an exploded view of the high pressure syringe of the present invention;
FIG. 3 is a perspective view of the sleeve of FIG. 1;
the reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 100 | |
317 | |
| 10 | |
318 | |
| 30 | |
319 | |
| 31 | |
33 | |
| 311 | Clamping |
331 | |
| 312 | Containing |
333 | |
| 313 | Let a mouthful | 200 | |
| 315 | Communicating |
1000 | High pressure syringe |
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, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to 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 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.
The utility model provides a syringe 100.
Referring to fig. 1 and 2, in the embodiment of the present invention, the syringe 100 includes a body 10 and a needle mounting portion 30 connected to each other, the needle mounting portion 30 deviates from the end face of the body 10 has been opened to accommodate a cavity 312, the side wall of the cavity 312 has been opened to a slot 311, the needle mounting portion 30 deviates from the side wall of the body 10 has been opened to communicate with the slot 313 of the slot 311 in the cavity 312 for guiding the needle 200 into the needle, the bottom wall of the cavity 312 has been opened to guide the liquid in the body 10 into the communication hole 315 of the needle 200.
The utility model discloses among the technical scheme, through setting cylinder 100 to the structure including the barrel 10 and the syringe needle installation department 30 that are connected, wherein, deviating from of syringe needle installation department 30 the one end terminal surface of barrel 10 has been seted up and has been held chamber 312, and the lateral wall that holds chamber 312 has seted up draw-in groove 311, and the one end lateral wall that deviates from barrel 10 of syringe needle installation department 30 has seted up the intercommunication and has held chamber 312 and draw-in groove 311's mouth 313 of stepping down, and the diapire that holds chamber 312 is offered and is used for the intercommunicating pore 315 with the leading-in pintle 200 of barrel 10 internal liquid. When the syringe 100 is connected with the needle, the pintle 200 of the needle is loaded into the accommodating cavity 312 from the clamping groove 311 and the relief opening 313, so that the accommodating cavity 312 deviates from the side wall of the syringe body 10 to clamp the pintle 200, and thus, the connection stability between the syringe 100 and the needle is improved. Even when the pressure in the syringe barrel 100 reaches 1200PSI, the connection between the needle and the syringe barrel 100 is still stable, ensuring the use of the high pressure syringe 1000.
It should be noted that the function of the relief opening 313 is only to allow the upper end of the pintle 200 to pass through during installation or disassembly, therefore, the size of the relief opening 313 is small, and it is sufficient to ensure the passage of the upper portion of the pintle, and it can be understood that the relief opening 313 is smaller than the maximum outer diameter of the pintle 200, so as to ensure the passage of the pintle 200, and also ensure the contact area between the pintle 200 and the sidewall of the end of the needle head installation portion 30 that is away from the barrel portion 10, thereby ensuring that after the syringe 100 is connected with the pintle 200, sufficient pressure resistance can be provided in the axial direction, and avoiding the situation that the needle head is easily separated from the syringe 100 under a high-pressure working state. The needle includes a pintle 200 and a needle tube (not shown) fixed to the pintle 200.
Referring to fig. 2 and 3, in an embodiment of the present invention, the needle mounting portion 30 includes a mounting portion body 33 and a sleeve 31, the mounting portion body 33 is connected and communicated with the barrel portion 10, the sleeve 31 is sleeved on the mounting portion body 33, the sleeve 31 deviates from the end face of the barrel portion 10, the accommodating cavity 312 is opened, the sleeve 31 deviates from the side wall of one end of the barrel portion 10, and the position-giving opening 313 is opened.
In the technical solution of the embodiment of the present invention, the needle mounting portion 30 may be an integral structure or a detachable structure. When the needle mounting portion 30 is a detachable structure, the needle mounting portion 30 includes a mounting portion body 33 and a sleeve 31, and at this time, the accommodating cavity 312 is disposed on the sleeve 31, and the pintle 200 and the sleeve 31 are connected in a retaining manner. The sleeve 31 is sleeved on the surface of the mounting part body 33, so that the processing of the connecting structure of the needle cylinder 100 and the pintle 200 is facilitated, and the processing difficulty of the needle cylinder 100 is reduced.
Referring to fig. 2, in an embodiment of the present invention, the syringe 100 further includes a liquid guiding portion 333, the liquid guiding portion 333 is connected to an end of the mounting portion body 33 away from the syringe portion 10 and is communicated with the mounting portion body 33, and the liquid guiding portion 333 is disposed through the communication hole 315 to be inserted into the pintle 200.
In the technical solution of the embodiment of the present invention, the liquid guiding part 333 of the syringe 100 is provided to smoothly guide the liquid inside the syringe 100 into the pintle 200, so as to prevent the leakage and influence the use of the injector.
Further, referring to fig. 2, in an embodiment of the present invention, an end of the liquid guiding portion 333 deviating from the mounting portion body 33 protrudes from the sleeve 31.
In the technical solution of the embodiment of the present invention, when the needle mounting portion 30 is a detachable structure, the liquid guiding portion 333 is disposed at one end of the mounting portion body 33 and protrudes from the sleeve 31. With such an arrangement, on the one hand, the liquid inside the syringe 100 can be smoothly guided into the pintle 200, thereby preventing the liquid leakage, and on the other hand, the pintle 200 can be positioned in the radial direction, thereby further improving the connection stability. Further, the outer diameter of the liquid guide 333 is set to decrease in the liquid feeding direction of the cylinder 100. Thus, the resistance of the connection between the pintle 200 and the syringe 100 can be reduced, a certain guiding function is provided for the insertion of the liquid guide part 333 into the pintle 200, and the connection between the syringe 100 and the pintle 200 is more convenient.
Referring to fig. 2 and 3, in an embodiment of the present invention, the surface of the mounting portion body 33 is provided with a first thread 331, the inner wall of the sleeve 31 is provided with a second thread 317, and the sleeve 31 is fixedly connected to the mounting portion body 33 by the engagement of the first thread 331 and the second thread 317.
The utility model discloses among the technical scheme of the embodiment, in order to guarantee the reliability of sleeve 31 and installation department body 33 surface connection, be provided with first screw thread 331 on installation department body 33 surface respectively, correspondingly, set up in second screw thread 317 at the inner wall of sleeve 31, sleeve 31 and installation department body 33 are through the meshing of first screw thread 331 with second screw thread 317, realize fixed connection, improve the reliability that sleeve 31 and installation department body 33 are connected. Specifically, for convenience of machining, the second thread 317 is provided near an end of the sleeve 31 at an end facing away from the receiving cavity 312, so as to facilitate machining. Wherein the thread profile can be a plain thread, a trapezoidal thread, a rectangular thread or a buttress thread. In this embodiment, the trapezoidal thread that chooses for use, the pitch of trapezoidal thread is little, and compressive capacity is big to, also conveniently process trapezoidal thread at the surface of installation department body 33. In one embodiment of the present invention, the trapezoidal thread on the mounting body 33 of the syringe 100 is right-handed.
Referring to fig. 2 and 3, in an embodiment of the present invention, a lightening hole 319 is further formed on a side wall of the sleeve 31; the weight of the mounting portion 30 of the cylinder 100 can be reduced by providing the lightening holes 319, so that the whole injector can be made lightweight. Further, the sidewall of the sleeve 31 is protruded with an anti-slip rib 318. The setting of the protruding muscle 318 of antiskid makes things convenient for sleeve 31 and the installation department body 33 cover to establish the in-process, and the frictional force on increase sleeve 31 surface improves the result of use.
Further, in an embodiment of the present invention, the material of the mounting portion body 33 is poly (p-phenylene terephthalates), the bending strength of PET can reach 200MPa, the elastic modulus reaches 4000MPa, the creep resistance and the fatigue resistance are also good, the surface hardness is high, the mechanical properties are good, and the good performance can be maintained under a high pressure state. It can be understood that the mounting portion body 33 and the barrel 10 are integrally injection molded, the connection between the mounting portion body 33 and the barrel 10 is firm, and the consistency of the product is high and the appearance is beautiful. The material of the mounting portion body 33 is not limited to PET, and may be other materials having similar properties.
The utility model provides a high-pressure injector 1000, this high-pressure injector 1000 includes push rod and cylinder 100, and the concrete structure of this cylinder 100 refers to above-mentioned embodiment, because this high-pressure injector 1000 has adopted the whole technical scheme of above-mentioned all embodiments, consequently has all beneficial effects that the technical scheme of above-mentioned embodiment brought at least, and the repeated description is no longer given here. A plunger (not shown) is slidably connected to the body 10 of the syringe 100, and the plunger is telescopically movable in the body 10 of the syringe 100. Specifically, the plunger (not shown) includes a plunger piston (not shown) and a plunger body (not shown), the plunger piston is disposed in the barrel 10, the plunger body is connected to the plunger piston and disposed outside the barrel 10, and the plunger body pushes the plunger piston to slide in a telescopic manner inside the barrel, so that the liquid in the barrel 10 can be injected.
The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structure changes made by the contents of the specification and the drawings under the inventive concept of the present invention, or the direct/indirect application in other related technical fields are included in the patent protection scope of the present invention.
Claims (10)
1. The utility model provides a needle cylinder, a serial communication port, the needle cylinder is including the barrel portion and the syringe needle installation department that are connected, deviating from of syringe needle installation department the one end terminal surface of barrel portion has been seted up and has been held the chamber, the draw-in groove has been seted up to the lateral wall that holds the chamber, deviating from of syringe needle installation department the intercommunication has been seted up to the one end lateral wall of barrel portion hold the chamber with the mouth of stepping down of draw-in groove for the pintle of leading-in syringe needle, the diapire that holds the chamber seted up be used for with liquid is leading-in the barrel portion the.
2. The syringe of claim 1, wherein the needle mount includes a mount body and a sleeve, the mount body is connected and communicated with the barrel, the sleeve is sleeved on the mount body, the end face of the sleeve that is away from the barrel has been opened with the accommodating cavity, and the end wall of the sleeve that is away from the barrel has been opened with the relief opening.
3. The syringe of claim 2, further comprising a fluid conducting portion connected to an end of the mounting portion body away from the barrel portion and disposed in communication with the mounting portion body, the fluid conducting portion disposed through the communication hole to be inserted into the pintle.
4. The syringe of claim 3 wherein an end of the fluid conducting portion facing away from the mount body protrudes from the barrel.
5. The syringe of claim 4 wherein said liquid conducting portion has an outer diameter that decreases in a direction of liquid delivery from said syringe.
6. The syringe of claim 2 wherein said mounting body has a first thread on a surface thereof and said hub has a second thread on an inner wall thereof, said hub being fixedly attached to said mounting body by engagement of said first thread with said second thread.
7. The syringe of claim 6, wherein the first and second threads are trapezoidal threads.
8. The syringe of claim 2 wherein the sidewall of the barrel is further formed with lightening holes;
and/or the side wall of the sleeve is also convexly provided with an anti-skid convex rib.
9. The syringe of any one of claims 2 to 8 wherein the mount body is of a polyterephthalic plastic.
10. A high pressure injector, comprising a ram and the barrel of any one of claims 1 to 9, the ram being slidably connected to the barrel portion of the barrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920696802.9U CN210020605U (en) | 2019-05-14 | 2019-05-14 | Syringe and high-pressure injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920696802.9U CN210020605U (en) | 2019-05-14 | 2019-05-14 | Syringe and high-pressure injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210020605U true CN210020605U (en) | 2020-02-07 |
Family
ID=69365696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920696802.9U Active CN210020605U (en) | 2019-05-14 | 2019-05-14 | Syringe and high-pressure injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210020605U (en) |
-
2019
- 2019-05-14 CN CN201920696802.9U patent/CN210020605U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant |