CN112933344B - Injection device - Google Patents
Injection device Download PDFInfo
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- CN112933344B CN112933344B CN202110110403.1A CN202110110403A CN112933344B CN 112933344 B CN112933344 B CN 112933344B CN 202110110403 A CN202110110403 A CN 202110110403A CN 112933344 B CN112933344 B CN 112933344B
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- Prior art keywords
- injection
- injection cavity
- sealing
- pipe structure
- liquid outlet
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/19—Syringes having more than one chamber, e.g. including a manifold coupling two parallelly aligned syringes through separate channels to a common discharge assembly
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M2005/1787—Syringes for sequential delivery of fluids, e.g. first medicament and then flushing liquid
Abstract
The invention provides an injection device, which relates to the technical field of medical appliances and aims to solve the technical problems that different medicines cannot be continuously injected, connection is not in time, connection stability at a joint is poor and liquid returns exist in the prior art, and the device comprises: the body is arranged to comprise a plurality of injection assemblies, and injection cavities of the injection assemblies are integrally formed; the connector structure is connected to the body and comprises a plurality of connecting pipe structures and a liquid outlet pipe structure, a one-way valve is arranged in each connecting pipe structure, each connecting pipe structure is communicated with the liquid outlet pipe structure, a connecting piece is arranged at the end part of the liquid outlet pipe structure, and the liquid outlet pipe structure is connected with the injection needle through the connecting piece; the liquid outlet ends of the injection cavities are connected with the connecting pipe structures in a one-to-one correspondence manner, so that different medicines can be continuously injected without replacing the injector, and the problems of mixing of different medicines, untimely connection of the replacement injector, poor joint stability and the like are avoided.
Description
Technical Field
The invention relates to the technical field of medical appliances, in particular to an injection device.
Background
When hemostasis of esophageal varices and hemostasis of gastric fundus varices are carried out, a sandwich method is needed. The specific operation mode is as follows: the injection needle containing 1.0-2.0 ml of the poly-cinnamyl alcohol is quickly and accurately inserted into the varicose vein part, the poly-cinnamyl alcohol (3.0-4.0 ml), the tissue glue of 0.5-1.0 ml and the poly-cinnamyl alcohol (3.0-4.0 ml) are quickly injected in sequence, after the injection, the hardness of the injection part is checked by using the injection needle tube, the front end of the needle sheath is pressed for 3-5 min, and the injection is carried out for multiple times until the injection part is completely hardened. The physiological saline flushing pipe for pulling out the needle prevents the needle from being blocked.
The applicant found that the prior art has at least the following technical problems:
the operation needs at least three syringes, the syringe is pulled out after one liquid medicine is injected, the syringe is replaced and is connected with the syringe for continuous injection, and the injection is repeated for three times, so that continuous injection of different medicines cannot be realized, and the problems of untimely connection, poor connection stability at the joint, liquid return and the like exist.
Disclosure of Invention
The invention aims to provide an injection device, which solves the technical problems that different medicines cannot be continuously injected, connection is not in time, connection stability at a joint is poor and liquid returns exist in the prior art. The preferred technical solutions of the technical solutions provided by the present invention can produce a plurality of technical effects described below.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the present invention provides an injection device comprising:
the injection device comprises a body, a plurality of injection modules and a plurality of injection modules, wherein injection cavities of the injection modules are integrally formed;
the connector structure is connected to the body and comprises a plurality of connecting pipe structures and liquid outlet pipe structures, wherein one-way valves are arranged in the connecting pipe structures, each connecting pipe structure is communicated with the liquid outlet pipe structure, a connecting piece is arranged at the end part of the liquid outlet pipe structure, and the liquid outlet pipe structure is connected with an injection needle through the connecting piece;
the liquid outlet ends of the injection cavities are connected with the connecting pipe structures in a one-to-one correspondence.
Preferably, the connector is arranged to comprise a housing, wherein:
a truncated cone-shaped inner core is arranged in the shell, and a truncated cone-shaped through hole is formed in the center of the inner core;
the inner surface of the housing is provided with threads for connecting to a connector of the injection needle.
Preferably, a sealing structure is arranged on the inner wall of the connecting pipe structure, the sealing structure comprises a plurality of sealing bulges, and the bottoms of the sealing bulges are arranged at an obtuse angle with the inner wall of the connecting pipe structure.
Preferably, a plurality of the sealing protrusions are sequentially arranged along the inside of the connection pipe structure to the end, and the distance between the plurality of the sealing protrusions increases linearly.
Preferably, the sealing structure comprises a connection layer, a sealing layer and a buffer layer arranged between the connection layer and the sealing layer, wherein:
the connecting layer is fixedly connected to the inner side wall of the connecting pipe structure, and the sealing layer is provided with the sealing bulge.
Preferably, the liquid outlet end is provided with a clamping groove structure, and the clamping groove structure is used for accommodating the sealing protrusion.
Preferably, the body is arranged to comprise a first injection assembly, a second injection assembly and a third injection assembly, wherein:
the first injection assembly, the second injection assembly and the third injection assembly are respectively provided with a first injection cavity, a second injection cavity and a third injection cavity, the lengths of the first injection cavity, the second injection cavity and the third injection cavity are the same, and the diameter of the third injection cavity is smaller than the diameters of the first injection cavity and the second injection cavity.
Preferably, the outer surfaces of the first injection cavity and the second injection cavity are respectively provided with a first arc-shaped groove and a second arc-shaped groove, wherein:
the number of the first arc-shaped grooves and the number of the second arc-shaped grooves are three.
Preferably, the piston stem ends of the injection assembly are each provided with an oval recess, wherein:
the circumference of the groove and the piston handle are arranged to be smooth and excessive, and a plurality of protruding structures are arranged in the groove.
Preferably, the sealing structure is made of rubber.
The invention provides an injection device, which comprises a body and a joint structure, wherein the body is provided with a plurality of injection assemblies, injection cavities of the injection assemblies are integrally formed, the joint structure is connected to the body and comprises a plurality of connecting pipe structures and a liquid outlet pipe structure, a one-way valve is arranged in each connecting pipe structure, each connecting pipe structure is communicated with the liquid outlet pipe structure, the end part of the liquid outlet pipe structure is provided with a connecting piece, the liquid outlet pipe structure is connected with an injection needle through the connecting piece, the liquid outlet ends of the injection cavities are correspondingly connected with the connecting pipe structures one by one, various liquid medicines are pumped into the injection cavities according to the use specifications before use, then the liquid outlet ends of the injection cavities are connected with the connecting pipe structures of the joint structure, an injection operation is carried out after the injection position is selected, the one-way joint structure is connected to the body, an outlet is shared after the joint structure is connected, the one-way valve is arranged, and on the premise that the syringe is not replaced, different medicines are continuously injected on the premise that the syringe is realized, and the problems of mixing of different medicines, the different medicines are not replaced, the stability is poor in time, and the joint stability is poor when the syringe is replaced.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of an embodiment of a body of an injection device according to the present invention;
FIG. 2 is a schematic view of an embodiment of a connector structure of an injection device according to the present invention;
FIG. 3 is a schematic view of an embodiment of a connector of the injection device of the present invention;
FIG. 4 is a schematic cross-sectional view of the connection between the connecting tube structure and the liquid outlet end of the injection cavity in the injection device of the present invention;
fig. 5 is a schematic view of the structure of the end face of the plunger shaft in the injection device of the present invention.
In the figure: 1. a body; 2. a joint structure; 3. a connecting piece; 11. a first injection assembly; 12. a second injection assembly; 13. a third injection assembly; 14. a liquid outlet end; 15. a piston handle; 21. a first connection tube structure; 22. a second connecting tube structure; 23. a third connecting tube structure; 24. a liquid outlet pipe structure; 25. a sealing structure; 26. a one-way valve; 31. a housing; 32. an inner core; 33. a through hole; 34. a thread; 111. a first injection cavity; 112. a first arc-shaped groove; 121. a second injection cavity; 122. a second arc-shaped groove; 131. a third injection cavity; 141. a clamping groove structure; 151. a groove; 152. smooth transition; 153. a bump structure; 251. a sealing protrusion; 252. a connection layer; 253. a sealing layer; 254. and a buffer layer.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, based on the examples herein, which are within the scope of the invention as defined by the claims, will be within the scope of the invention as defined by the claims.
The invention provides an injection device, which comprises a body 1 and a joint structure 2, wherein fig. 1 is a schematic structural diagram of the body in the embodiment, and as shown in fig. 1, the body 1 is provided with a plurality of injection assemblies, and injection cavities of the injection assemblies are integrally formed.
In this embodiment, three injection assemblies are provided, namely, a first injection assembly 11, a second injection assembly 12 and a third injection assembly 13, and the first injection cavity 111 of the first injection assembly 11, the second injection cavity 121 of the second injection assembly 12 and the third injection cavity 131 of the third injection assembly 13 are integrally formed.
The lengths of the first injection cavity 111, the second injection cavity 121 and the third injection cavity 131 are the same, that is, the sections of the first injection cavity 111, the second injection cavity 121 and the third injection cavity 131 are of stable triangular structures, so that the injection device is more stable in use and convenient to operate by one hand. The diameter of the third injection cavity 131 is smaller than the diameters of the first injection cavity 111 and the second injection cavity 121, specifically, in this embodiment, the volumes of the first injection cavity 111 and the second injection cavity 121 are set to be 10ml, the volume of the third injection cavity 131 is 5ml, the whole volume of this embodiment is small, the operation is convenient, and the adopted volume can meet the dosage requirement of the sandwich treatment method.
The joint structure 2 is connected to the body 1, fig. 2 is a schematic structural diagram of the joint structure in this embodiment, and as shown in fig. 2, the joint structure 2 includes a plurality of connection pipe structures and a liquid outlet pipe structure 24, and in this embodiment, the connection pipe structures include a first connection pipe structure 21, a second connection pipe structure 22 and a third connection pipe structure 23.
Wherein, the inside of each connecting pipe structure is provided with a one-way valve 26, each connecting pipe structure is communicated with a liquid outlet pipe structure 24, the end part of the liquid outlet pipe structure 24 is provided with a connecting piece 3, and the liquid outlet pipe structure 24 is connected with an injection needle through the connecting piece 3; the liquid outlet ends of the injection cavities are connected with the connecting pipe structures in a one-to-one correspondence.
Before use, various liquid medicines are pumped into the injection cavity according to the use specification, then the liquid outlet end of each injection cavity is connected with the connecting pipe structure of the joint structure 2, the injection part is selected, then the injection operation is performed, the multi-in-one-way joint structure 2 is connected onto the body, the joint structure 2 is connected with an outlet, the one-way flow direction of the liquid medicines is realized by arranging the one-way valve 26, and the liquid medicines are continuously injected under the premise of not replacing the injector only without entering, so that the problems of untimely connection, poor joint connection stability and the like when different medicines are mutually mixed and the injector is replaced are effectively avoided.
As an alternative implementation manner, fig. 3 is a schematic structural diagram of a connecting piece in this embodiment, as shown in fig. 3, the connecting piece 3 is set to include a housing 31, a circular truncated cone-shaped inner core 32 is disposed in the housing 31, a circular truncated cone-shaped through hole 33 is formed in the center of the inner core 32, the circular truncated cone-shaped inner core 32 can be connected with a joint of an injection needle more tightly, a liquid leakage phenomenon is avoided, a liquid medicine is injected from a large-caliber end in the injection process through the circular truncated cone-shaped through hole 33, a liquid is discharged from a small-caliber end, the injection process is smoother, and threads 34 are disposed on the inner surface of the housing 31 and used for connecting the joint of the injection needle.
In this embodiment, preferably, the end portion where the connecting member 3 is disposed is fixedly connected to the liquid outlet pipe structure 24, or the connecting member 3 and the liquid outlet pipe structure 24 are integrally formed.
As an alternative implementation manner, fig. 4 is a schematic diagram of a cross-sectional structure of a connection part between a connecting pipe structure and a liquid outlet end of an injection cavity in this embodiment, as shown in fig. 4, a sealing structure 25 is disposed on an inner wall of the connecting pipe structure, the sealing structure 25 includes a plurality of sealing protrusions 251, and an obtuse angle is formed between a bottom of the sealing protrusion 251 and the inner wall of the connecting pipe structure, so that the connection is smoother during use and the sealing effect is effectively enhanced.
As an alternative embodiment, the plurality of sealing protrusions 251 are sequentially arranged from the inside to the end of the connecting pipe structure, the distance between the plurality of sealing protrusions 251 is linearly increased by arranging the sealing protrusions 251, the disassembly and the assembly are labor-saving, the sealing effect is effectively improved, and the sealing device is pulled out by force during the disassembly.
As an alternative embodiment, the sealing structure 25 is provided to include a connection layer 252, a sealing layer 253, and a buffer layer 254 provided between the connection layer 252 and the sealing layer 253, wherein:
the connecting layer 252 fixed connection is provided with the sealing bulge 251 on the inner side wall of the connecting pipe structure, and the buffer layer 254 is arranged between the connecting layer 252 and the sealing layer 253, so that the buffer performance of the sealing structure can be further improved, the elasticity of the sealing structure is improved, and the sealing structure can be adapted to various different types of syringes.
As an alternative embodiment, the liquid outlet end 14 is provided with a clamping groove structure 141, the clamping groove structure 141 is used for accommodating the sealing protrusion 251, in this embodiment, preferably, the clamping groove structure 141 is provided with the sealing protrusion 251 in the liquid outlet end 14, and the sealing effect is improved by tightly matching the sealing protrusion 251 with the clamping groove structure 141, so that the phenomenon of liquid leakage during use is avoided, and meanwhile, the problem of poor connection stability of the connector can be effectively avoided. It should be noted that, the slot structure 141 needs to have a certain distance from the port of the liquid outlet 14, so as to avoid the liquid medicine being stored in the slot structure 141 when the liquid medicine is taken.
As an alternative embodiment, the outer surfaces of the first injection cavity 111 and the second injection cavity 121 are provided with a first arc-shaped groove 112 and a second arc-shaped groove 122, respectively, wherein: the first arc-shaped groove 112 and the second arc-shaped groove 122 are all arranged in three, and when the liquid medicine is pushed out by arranging the first arc-shaped groove 112 and the second arc-shaped groove 122, fingers are placed in the arc-shaped grooves, so that one-hand operation injection can be realized, and the operation is simple and convenient, and nursing and injection time is saved.
As an alternative implementation, fig. 5 is a schematic structural view of the end face of the piston handle in this embodiment, as shown in fig. 5, where the end portions of the piston handle of the injection assembly are provided with oval grooves 151, where: the circumference side of recess 151 and piston handle 15 set up to smooth excessive 152 to be provided with a plurality of protruding structures 153 in the recess 151, through setting up oval-shaped structure, be fit for human finger abdomen and press, the circumference side of recess 151 and piston handle 15 set up to smooth excessive 152, comfortable operation, set up a plurality of protruding structures 153, increase the friction of recess 151 department, the landing when avoiding using increases the stability in use and the security of whole device.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (6)
1. An injection device for use in a sandwich hemostatic procedure comprising:
a body configured to include a first injection assembly, a second injection assembly, and a third injection assembly, wherein:
the first injection assembly, the second injection assembly and the third injection assembly are respectively provided with a first injection cavity, a second injection cavity and a third injection cavity, the first injection cavity, the second injection cavity and the third injection cavity are integrally formed, and the cross sections of the first injection cavity, the second injection cavity and the third injection cavity are of triangular structures; the lengths of the first injection cavity, the second injection cavity and the third injection cavity are the same, and the diameter of the third injection cavity is smaller than that of the first injection cavity and the second injection cavity; setting the volumes of the first injection cavity and the second injection cavity to be 10ml, and setting the volume of the third injection cavity to be 5ml;
the connector structure is connected to the body, and the connector structure comprises a plurality of connecting pipe structures and a liquid outlet pipe structure, wherein:
a one-way valve is arranged in each connecting pipe structure, each connecting pipe structure is communicated with the liquid outlet pipe structure, a connecting piece is arranged at the end part of the liquid outlet pipe structure, and the liquid outlet pipe structure is connected with an injection needle through the connecting piece; the liquid outlet ends of the injection cavities are connected with the connecting pipe structures in a one-to-one correspondence manner;
the inner wall of the connecting pipe structure is provided with a sealing structure, the sealing structure comprises a plurality of sealing bulges, and the bottoms of the sealing bulges are arranged at an obtuse angle with the inner wall of the connecting pipe structure; the sealing bulges are sequentially arranged from the inside to the end part of the connecting pipe structure, and the distances among the sealing bulges are linearly increased; the seal structure sets up to including tie layer, sealing layer and set up in the tie layer with the buffer layer between the sealing layer, wherein: the connecting layer is fixedly connected to the inner side wall of the connecting pipe structure, and the sealing layer is provided with the sealing bulge.
2. An injection device according to claim 1, wherein: the connector is configured to include a housing, wherein:
a truncated cone-shaped inner core is arranged in the shell, and a truncated cone-shaped through hole is formed in the center of the inner core;
the inner surface of the housing is provided with threads for connecting to a connector of the injection needle.
3. An injection device according to claim 1 or 2, wherein: the liquid outlet end is provided with a clamping groove structure, and the clamping groove structure is used for accommodating the sealing protrusion.
4. An injection device according to claim 1 or 2, wherein: the outer surfaces of the first injection cavity and the second injection cavity are respectively provided with a first arc-shaped groove and a second arc-shaped groove, wherein:
the number of the first arc-shaped grooves and the number of the second arc-shaped grooves are three.
5. An injection device according to claim 1 or 2, wherein: the piston handle end of injection component all sets up oval recess, wherein:
the circumference of the groove and the piston handle are arranged to be smooth and excessive, and a plurality of protruding structures are arranged in the groove.
6. An injection device according to claim 1 or 2, wherein: the sealing structure is made of rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110110403.1A CN112933344B (en) | 2021-01-27 | 2021-01-27 | Injection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110110403.1A CN112933344B (en) | 2021-01-27 | 2021-01-27 | Injection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112933344A CN112933344A (en) | 2021-06-11 |
| CN112933344B true CN112933344B (en) | 2023-04-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110110403.1A Active CN112933344B (en) | 2021-01-27 | 2021-01-27 | Injection device |
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| CN (1) | CN112933344B (en) |
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| JP2002507144A (en) * | 1998-04-13 | 2002-03-05 | アプライド メディカル リソーシーズ コーポレイション | Conical universal seal with non-uniform surface and sealing device containing the same |
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| CN112933344A (en) | 2021-06-11 |
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Effective date of registration: 20220614 Address after: 541000 Bantang Road, Qixing District, Guilin City, Guangxi Zhuang Autonomous Region Applicant after: Guilin Chinese and Western Medicine Integrated Hospital Address before: 541000 1-4-2, No. 19, Qixing Road, Qixing District, Guilin City, Guangxi Zhuang Autonomous Region Applicant before: Wang Xiaobin |
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