CN217091665U - Injection device - Google Patents
Injection device Download PDFInfo
- Publication number
- CN217091665U CN217091665U CN202120664254.9U CN202120664254U CN217091665U CN 217091665 U CN217091665 U CN 217091665U CN 202120664254 U CN202120664254 U CN 202120664254U CN 217091665 U CN217091665 U CN 217091665U
- Authority
- CN
- China
- Prior art keywords
- cylinder
- needle
- injection device
- base
- seat body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model discloses an injection device, which comprises a needle cylinder, a push rod and a puncture assembly, wherein an accommodating cavity is formed inside the needle cylinder, one end of the needle cylinder is provided with a liquid outlet communicated with the accommodating cavity, the other end of the needle cylinder is provided with an opening communicated with the accommodating cavity, and an installation space is formed at one end of the needle cylinder, which is provided with the liquid outlet; one end of the push rod extends into the containing cavity through the opening, the puncture assembly comprises a seat body, a puncture needle and a sheath, part of structure of the seat body is contained in the installation space and detachably connected with the needle cylinder, the puncture needle is connected with the seat body and communicated with the liquid outlet, and the sheath is detachably connected with the seat body and sleeved outside the puncture needle. The technical scheme of the utility model aims at optimizing injection device's structure, promotes the fastness that pjncture needle and cylinder are connected, promotes the security performance of syringe.
Description
Technical Field
The utility model relates to the technical field of medical equipment, in particular to injection device.
Background
The injection device comprises a needle cylinder and a puncture assembly, wherein the puncture assembly is connected with the needle cylinder so as to puncture a medicine bottle or skin and facilitate the suction of medicine liquid or the injection operation. The existing injection device has a plurality of technical problems in the using process, for example, after the puncture needle is connected with the needle cylinder, the problem of loose connection often occurs, and the safety of the injection device is influenced.
SUMMERY OF THE UTILITY MODEL
The main purpose of the utility model is to provide an injection device aims at optimizing injection device's structure, promotes the fastness that pjncture needle and cylinder are connected, promotes the security performance of syringe.
To achieve the above object, the present invention provides an injection device, comprising:
the needle cylinder is internally provided with a containing cavity, one end of the needle cylinder is provided with a liquid outlet communicated with the containing cavity, the other end of the needle cylinder is provided with an opening communicated with the containing cavity, and an installation space is formed at one end of the needle cylinder, which is provided with the liquid outlet;
one end of the push rod extends into the containing cavity through the opening; and
the puncture assembly comprises a seat body, a puncture needle and a sheath, part of the structure of the seat body is accommodated in the installation space and detachably connected to the needle cylinder, the puncture needle is connected with the seat body and communicated with the liquid outlet, and the sheath is detachably connected with the seat body and sleeved outside the puncture needle.
In an embodiment of the present invention, the seat is formed with a positioning groove, and the needle cylinder includes:
the main cylinder body is internally provided with the containing cavity, and one end of the main cylinder body is provided with the opening;
the liquid guide cylinder is connected to one end, far away from the opening, of the main cylinder body, and is provided with the liquid outlet; and
the connecting cylinder is connected with the main cylinder body and located on the outer side of the liquid guide cylinder, the connecting cylinder and the liquid guide cylinder are enclosed to form the installation space, part of the seat body is accommodated in the installation space and is detachably connected with the connecting cylinder, and the liquid guide cylinder is inserted into the positioning groove.
In an embodiment of the present invention, the seat body is connected to the connecting cylinder by a screw thread; or the seat body is connected with the connecting cylinder in a buckling way.
In an embodiment of the present invention, the outer diameter of the liquid guiding cylinder gradually decreases from one end of the main cylinder body to the end away from the main cylinder body; the end of the main cylinder body, which is far away from the opening, is arranged in a conical manner.
In an embodiment of the present invention, the height of the liquid guiding cylinder is greater than the height of the connecting cylinder.
In an embodiment of the present invention, the seat body includes:
the positioning groove is concavely arranged on the end surface of the base, and the base is accommodated in the installation space and is connected with the connecting cylinder; and
the connecting seat is connected with one end of the base, which is far away from the needle cylinder, and the puncture needle is fixedly connected with the base;
the protective sleeve is detachably sleeved and fixed on the side wall surface of the base, and the protective sleeve is abutted to the end surface of the connecting cylinder.
In an embodiment of the present invention, the surface of the connecting seat is provided with a protruding reinforcing rib, and the reinforcing rib extends to the surface of the base.
In an embodiment of the present invention, the base, the connecting seat, the reinforcing rib and the puncture needle are integrated into a whole.
In an embodiment of the present invention, the side wall surface of the sheath is provided with an anti-slip structure.
In an embodiment of the present invention, the volume of the cavity is 3 ml.
The injection device in the technical proposal of the utility model comprises a needle cylinder, a push rod and a puncture component. Wherein, the inside of cylinder is formed with the appearance chamber that is used for the holding liquid medicine, and the both ends of cylinder are equipped with liquid outlet and opening respectively. Wherein, the needle cylinder is provided with the liquid outlet one end and still is formed with installation space, and when the spike assembly was connected with the needle cylinder, the partial structure of pedestal can hold in installation space to promote the fastness of spike assembly and needle cylinder connection, ensure the security in the injection device use. The puncture needle is communicated with the liquid outlet so as to conveniently suck the liquid medicine into the containing cavity through the puncture needle or inject the liquid medicine in the containing cavity through the puncture needle. The pedestal is covered to sheath detachably, both can protect operating personnel at the in-process that puncture subassembly and cylinder are connected, can receive the pollution with the protection pjncture needle before using again, has further promoted injection device's security, does benefit to clinical using widely. And, puncture subassembly and cylinder are the mode of dismantling the connection, still make things convenient for the independent production, the transportation etc. of puncture subassembly and cylinder, further promote injection device convenient to use.
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 embodiments or the prior art descriptions 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 injection device of the present invention;
FIG. 2 is an exploded view of the injection device of FIG. 1;
figure 3 is a cross-sectional view of the injection device of the present invention;
fig. 4 is an enlarged view of a portion a in fig. 3.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 100 | |
30 | Piston |
| 10 | |
40 | |
| 11 | |
41 | |
| 111 | Containing |
411 | |
| 113 | Opening of the |
4111 | Locating |
| 13 | |
413 | Connecting |
| 131 | |
4131 | Reinforcing |
| 15 | Connecting |
43 | |
| 17 | |
45 | |
| 20 | Push rod |
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 indications in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a certain posture, and if the certain posture is changed, the directional indication is changed accordingly.
In the present application, unless expressly stated or limited otherwise, the terms "connected" and "secured" are to be construed broadly, and thus, for example, "secured" may be a fixed connection, a removable connection, or an integral part; 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 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.
The utility model provides an injection device 100.
Referring to fig. 1 to 4, an injection device 100 according to an embodiment of the present invention includes:
the needle cylinder 10 is provided with a cavity 111 inside, one end of the needle cylinder 10 is provided with a liquid outlet 131 communicated with the cavity 111, the other end of the needle cylinder 10 is provided with an opening 113 communicated with the cavity 111, and an installation space 17 is formed at one end of the needle cylinder 10 provided with the liquid outlet 131;
the push rod 20, one end of the push rod 20 extends into the cavity 111 through the opening 113; and
the puncture assembly 40 comprises a seat body 41, a puncture needle 43 and a sheath 45, part of the structure of the seat body 41 is accommodated in the installation space 17 and detachably connected to the needle cylinder 10, the puncture needle 43 is connected with the seat body 41 and communicated with the liquid outlet 131, and the sheath 45 is detachably connected with the seat body 41 and sleeved outside the puncture needle 43.
The injection device 100 of the present invention comprises a syringe 10, a push rod 20 and a puncture assembly 40. Wherein, the inside of the syringe 10 is formed with a cavity 111 for accommodating liquid medicine, and both ends of the syringe 10 are respectively provided with a liquid outlet 131 and an opening 113. Wherein, the needle cylinder 10 is provided with a liquid outlet 131, and an installation space 17 is further formed at one end thereof with the liquid outlet 131, when the puncture assembly 40 is connected with the needle cylinder 10, part of the structure of the seat body 41 can be accommodated in the installation space 17, so as to improve the firmness of the connection between the puncture assembly 40 and the needle cylinder 10 and ensure the safety of the injection device 100 in the using process. The puncture needle 43 communicates with the liquid outlet 131 so that the liquid medicine is sucked into the chamber 111 through the puncture needle 43 or the liquid medicine in the chamber 111 is injected through the puncture needle 43. The sheath 45 is detachably covered on the seat body 41, so that an operator can be protected in the process of connecting the puncture assembly 40 with the needle cylinder 10, the puncture needle 43 can be protected from being polluted before use, the safety of the injection device 100 is further improved, and the clinical popularization and use are facilitated.
It should be noted that the injection device 100 further includes a piston 30, and the piston 30 is disposed in the cavity 111 and connected to the push rod 20. The piston 30 abuts against the inner wall surface of the housing 111 to seal the opening 113 of the cylinder 10.
The injection device 100 of the present invention can be used for various purposes, such as proportioning for neocoronal vaccine, vaccine injection, etc., but is not limited to the above-mentioned purposes.
Referring to fig. 3 and 4, in an embodiment of the present invention, the seat body 41 is formed with a positioning groove 4111, and the syringe 10 includes:
the main cylinder 11, the cavity 111 is formed inside the main cylinder 11, and the opening 113 is arranged at one end of the main cylinder 11;
the liquid guide cylinder 13 is connected to one end, away from the opening 113, of the main cylinder 11, and the liquid guide cylinder 13 is provided with the liquid outlet 131; and
the connecting cylinder 15 is connected with the main cylinder 11, the connecting cylinder 15 is located outside the liquid guide cylinder 13, the mounting space 17 is defined between the connecting cylinder 15 and the liquid guide cylinder 13, part of the structure of the seat body 41 is accommodated in the mounting space 17 and detachably connected with the connecting cylinder, and the liquid guide cylinder 13 is inserted into the positioning groove 4111.
In the technical solution of an embodiment of the present invention, the main cylinder 11, the liquid guiding cylinder 13 and the connecting cylinder 15 are integrated into a whole, and can be formed by injection. The main cylinder body 11 is cylindrical, the one end that the opening 113 was kept away from to main cylinder body 11 is the toper setting, drain 13 is connected with main cylinder body 11, the one end orientation that the one end of the autonomic barrel 11 of the external diameter of drain 13 deviates from main cylinder body 11 is progressively reduced, drain 13 also is the toper setting promptly, drain 13 also is the toper setting with also being the toper setting, so that carry out the water conservancy diversion to the liquid that holds in the chamber 111, still can provide direction and location for being connected between puncture component 40 and the cylinder 10 simultaneously. The connecting cylinder 15 is connected with one end of the needle cylinder 10 far away from the opening 113, and the installation space 17 formed between the connecting cylinder 15 and the main cylinder 11 can be used for accommodating and fixing the seat body 41 in the puncture assembly 40, so as to improve the stability of the connection between the puncture assembly 40 and the needle cylinder 10.
Referring to fig. 2 and 3, further, in an embodiment of the present invention, the height of the liquid guiding cylinder 13 is greater than the height of the connecting cylinder 15. So, when the puncture assembly 40 and the needle cylinder 10 are connected in a sleeving manner, because the liquid guide cylinder 13 is higher than the connecting cylinder 15, the base 411 can be firstly contacted with the liquid guide cylinder 13, and at the moment, the liquid guide cylinder 13 can position the base 411 so as to improve the connection efficiency between the puncture assembly 40 and the needle cylinder 10.
Further, the seat body 41 includes a base 411 and a connecting seat 413, wherein a positioning groove 4111 is concavely disposed on an end surface of the base 411, and the base 411 is accommodated in the installation space 17; the connecting seat 413 is connected with one end of the base 411 far away from the needle cylinder 10, and the puncture needle 43 is fixedly connected with the base 411; the sheath 45 is detachably fixed on the side wall surface of the base 411 in a sleeved mode, and the end portion of the sheath 45 is abutted to the end face of the connecting cylinder 15.
Further, in an embodiment, a surface of the connection socket 413 is further protruded with a rib 4131, and the rib 4131 extends to the surface of the base 411. The reinforcing ribs 4131 can further increase the strength of the seat body 41. Specifically, the number of the reinforcing ribs 4131 is a plurality of ribs arranged at intervals to further enhance the strength of the seat body 41
The base 411, the connecting base 413, the rib 4131 and the puncture needle 43 are integrally formed. Base 411 and connecting seat 413 are the plastics material, form through injection molding, and pjncture needle 43 is the metal material, can inlay in connecting seat 413 when base 411 and connecting seat 413 injection moulding to promote the fastness that pedestal 41 and pjncture needle 43 are connected.
Referring to fig. 1 and 2, in an embodiment of the present invention, the side wall of the sheath 45 is convexly provided with an anti-slip structure.
The utility model discloses an among the technical scheme of an embodiment, anti-skidding structure can be anti-skidding protruding muscle, also can be anti-skidding bump etc. and anti-skidding structure can increase the frictional force of sheath 45 and user's hand to extract sheath 45, promote the convenience of use.
In an embodiment of the present invention, the seat body 41 is connected to the connecting cylinder 15 by a screw; or the seat body 41 is in snap connection with the connecting cylinder 15.
The utility model discloses an among the technical scheme of an embodiment, pedestal 41 and connecting cylinder 15 can be threaded connection, can be equipped with intermeshing's screw thread at the lateral wall face of base 411 and the lateral wall face of connecting cylinder 15. Further, the seat body 41 and the connecting cylinder 15 may be in a snap connection, and at this time, a side wall surface of the base 411 and a side wall surface of the connecting cylinder 15 may be provided with a snap structure which is matched with each other. The holder body 41 and the connector barrel 15 may be connected by a plug-in connection, and any structure may be used as long as the direct detachable connection between the holder body 41 and the connector barrel 15 is achieved, and therefore, the direct connection between the main body and the connector barrel 15 is not limited herein.
In an embodiment of the present invention, the volume of the cavity 111 is 3 ml.
In the technical solution of an embodiment of the present invention, the volume of the syringe 10 can be transparent, 3ml, and the syringe 100 can be transparent, so that the mixing state of the vaccine in the chamber 111 and the volume in the chamber 111 can be observed through the transparent environment, and the operation of the medical worker is facilitated. Further, the surface of the barrel 10 is provided with graduation marks to further assist the observation of the operator and to improve the convenience of the use of the injection device 100.
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. An injection device, comprising:
the needle cylinder is internally provided with a containing cavity, one end of the needle cylinder is provided with a liquid outlet communicated with the containing cavity, the other end of the needle cylinder is provided with an opening communicated with the containing cavity, and an installation space is formed at one end of the needle cylinder, which is provided with the liquid outlet;
one end of the push rod extends into the containing cavity through the opening; and
the puncture assembly comprises a seat body, a puncture needle and a sheath, part of the structure of the seat body is accommodated in the installation space and detachably connected to the needle cylinder, the puncture needle is connected with the seat body and communicated with the liquid outlet, and the sheath is detachably connected with the seat body and sleeved outside the puncture needle.
2. The injection device of claim 1, wherein the housing is formed with a positioning slot, the barrel comprising:
the main cylinder body is internally provided with the containing cavity, and one end of the main cylinder body is provided with the opening;
the liquid guide cylinder is connected to one end, far away from the opening, of the main cylinder body, and is provided with the liquid outlet; and
the connecting cylinder is connected with the main cylinder body and located on the outer side of the liquid guide cylinder, the connecting cylinder and the liquid guide cylinder are enclosed to form the installation space, part of the seat body is accommodated in the installation space and is detachably connected with the connecting cylinder, and the liquid guide cylinder is inserted into the positioning groove.
3. The injection device of claim 2, wherein the holder body is threadably connected to the connector barrel;
or the seat body is connected with the connecting cylinder in a buckling mode.
4. The injection device as defined in claim 2, wherein an outer diameter of said liquid guiding cylinder gradually decreases from one end of said main cylinder toward an end facing away from said main cylinder; the end of the main cylinder body, which is far away from the opening, is arranged in a conical manner.
5. The injection device of claim 2 wherein the height of said fluid conducting barrel is greater than the height of said connector barrel.
6. The injection device of claim 3, wherein the holder body comprises:
the positioning groove is concavely arranged on the end surface of the base, and the base is accommodated in the installation space and is connected with the connecting cylinder; and
the connecting seat is connected with one end of the base, which is far away from the needle cylinder, and the puncture needle is fixedly connected with the base;
the protective sleeve is detachably sleeved and fixed on the side wall surface of the base, and the protective sleeve is abutted to the end surface of the connecting cylinder.
7. The injection device as claimed in claim 6, wherein the coupling holder has a surface provided with a rib protruding therefrom, the rib extending to the surface of the base.
8. The injection device as defined in claim 7, wherein said base, said connecting base, said rib and said piercing needle are of a unitary construction.
9. The injection device as defined in claim 6, wherein the side wall surface of said sheath is convexly provided with an anti-slip structure.
10. An injection device as claimed in any of claims 1 to 9, wherein the volume of the reservoir is 3 ml.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120664254.9U CN217091665U (en) | 2021-03-31 | 2021-03-31 | Injection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120664254.9U CN217091665U (en) | 2021-03-31 | 2021-03-31 | Injection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217091665U true CN217091665U (en) | 2022-08-02 |
Family
ID=82577038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120664254.9U Active CN217091665U (en) | 2021-03-31 | 2021-03-31 | Injection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217091665U (en) |
-
2021
- 2021-03-31 CN CN202120664254.9U patent/CN217091665U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4262671A (en) | Airway connector | |
| US8317743B2 (en) | Medicament mixing and injection apparatus | |
| US6591876B2 (en) | Needle safe transfer guard | |
| CN217091665U (en) | Injection device | |
| CN215653117U (en) | Vaccine proportioning injector | |
| CN211327473U (en) | Syringe with a needle | |
| CN211327488U (en) | Syringe with a needle | |
| CN215653114U (en) | Vaccine syringe | |
| CN215653116U (en) | Injection device | |
| CN217886691U (en) | Medical syringe | |
| CN215653115U (en) | Medical sterile syringe | |
| CN211096710U (en) | Syringe with a needle | |
| EP1186313A1 (en) | Safety cover for a hypodermic syringe | |
| CN113133940A (en) | Vaccine proportioning injector | |
| CN210020665U (en) | Syringe and injector | |
| CN209751665U (en) | syringe and locking piece thereof | |
| CN215386569U (en) | Syringe needle anti-drop syringe | |
| CN215275088U (en) | Rubber plug piston assembly, needle cylinder mounting structure and high-pressure injector | |
| CN213911785U (en) | Syringe and high-pressure injector | |
| CN208693939U (en) | Safety type injection needle | |
| CN210020605U (en) | Syringe and high-pressure injector | |
| CN215309035U (en) | Pressure transfer structure and angiographic injection system | |
| CN215995135U (en) | Injection device for removing wrinkles on neck | |
| CN215023939U (en) | Negative pressure type remaining needle | |
| CN215274973U (en) | Syringe and radiography machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |