CN112933344A - Injection device - Google Patents
Injection device Download PDFInfo
- Publication number
- CN112933344A CN112933344A CN202110110403.1A CN202110110403A CN112933344A CN 112933344 A CN112933344 A CN 112933344A CN 202110110403 A CN202110110403 A CN 202110110403A CN 112933344 A CN112933344 A CN 112933344A
- Authority
- CN
- China
- Prior art keywords
- injection
- sealing
- liquid outlet
- pipe structure
- connecting pipe
- 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.)
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Links
- 238000002347 injection Methods 0.000 title claims abstract description 139
- 239000007924 injection Substances 0.000 title claims abstract description 139
- 239000007788 liquid Substances 0.000 claims abstract description 52
- 230000000712 assembly Effects 0.000 claims abstract description 10
- 238000000429 assembly Methods 0.000 claims abstract description 10
- 238000007789 sealing Methods 0.000 claims description 48
- 230000007704 transition Effects 0.000 claims description 4
- 239000003814 drug Substances 0.000 abstract description 16
- 229940079593 drug Drugs 0.000 abstract description 7
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 206010046996 Varicose vein Diseases 0.000 description 2
- 230000023597 hemostasis Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 208000000624 Esophageal and Gastric Varices Diseases 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 206010056091 Varices oesophageal Diseases 0.000 description 1
- 210000001015 abdomen Anatomy 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 208000024170 esophageal varices Diseases 0.000 description 1
- 201000010120 esophageal varix Diseases 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000474 nursing effect Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000003106 tissue adhesive Substances 0.000 description 1
- 208000027185 varicose disease Diseases 0.000 description 1
Images
Classifications
-
- 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
-
- 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
Landscapes
- Health & Medical Sciences (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
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 injected continuously, the connection is not timely, the connection stability at a joint is poor and the liquid returns in the prior art, and comprises the following components: the injection device comprises a body, a plurality of injection assemblies and a plurality of injection units, wherein 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 inside 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 each liquid outlet pipe structure, and the liquid outlet pipe structures are connected with the injection needles through the connecting pieces; the liquid outlet end of the injection cavity is connected with the connecting pipe structures in a one-to-one correspondence mode, different medicines can be injected continuously, the injector does not need to be replaced, and the problems that different medicines are mixed with each other, the injector is not replaced timely, the stability of a connector is poor and the like are solved.
Description
Technical Field
The invention relates to the technical field of medical appliances, in particular to an injection device.
Background
When the esophageal varices and the fundus varices are used for hemostasis, a sandwich-type hemostasis method is needed. The specific operation mode is as follows: quickly and accurately inserting a polycinnamic alcohol injection needle containing 1.0-2.0 ml into a varicose vein part, quickly injecting polycinnamic alcohol (3.0-4.0 ml), tissue glue (0.5-1.0 ml) and polycinnamic alcohol (3.0-4.0 ml) in sequence and order, checking the hardness of the injection part by using an injection needle tube after injection, pressing the front end of a needle sheath for 3-5 min, and injecting for multiple times until the injection part is completely hardened. The needle is pulled out and is flushed by normal saline to prevent the needle from being blocked.
The applicant has found that the prior art has at least the following technical problems:
this operation needs to use at least three syringe, pulls out the syringe after having injected a kind of liquid medicine, changes a syringe and connects and continue the injection, repeats the cubic so, consequently, can not realize injecting different kinds of medicines in succession, and has to join up untimely, connect the poor stability of department connection, return the liquid scheduling problem.
Disclosure of Invention
The invention aims to provide an injection device, which solves the technical problems that different medicines cannot be injected continuously, connection is not timely, connection stability at a joint is poor and liquid returns exist in the prior art. The technical effects that can be produced by the preferred technical scheme in the technical schemes provided by the invention are described in detail in the following.
In order to achieve the purpose, the invention provides the following technical scheme:
the present invention provides an injection device comprising:
a body configured to include a plurality of injection assemblies, injection cavities of the plurality of injection assemblies being integrally formed;
the connector structure is connected to the body and comprises a plurality of connecting pipe structures and a liquid outlet pipe structure, wherein a one-way valve is arranged inside 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 each liquid outlet pipe structure, and the liquid outlet pipe structures are connected with an injection needle through the connecting pieces;
the liquid outlet end of the injection cavity is connected with the connecting pipe structures in a one-to-one correspondence manner.
Preferably, the connector is provided to comprise a housing, wherein:
a truncated cone-shaped inner core is arranged inside 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 protrusions, and the bottoms of the sealing protrusions and the inner wall of the connecting pipe structure are arranged at an obtuse angle.
Preferably, a plurality of the sealing protrusions are sequentially arranged from the inside to the end of the connecting pipe structure, and the distance between the plurality of the sealing protrusions increases linearly.
Preferably, the sealing structure is provided to include a connection layer, a sealing layer, and a buffer layer provided 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 bulges.
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 provided to comprise a first syringe assembly, a second syringe assembly and a third syringe 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 first arc-shaped grooves and the second arc-shaped grooves are all three.
Preferably, the plunger stem ends of the injection assemblies are each provided with an elliptical recess, wherein:
the periphery of the groove and the piston handle are arranged to be in smooth transition, 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 comprises a plurality of injection components, injection cavities of the plurality of injection components 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 inside 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 connected with the connecting pipe structures in a one-to-one correspondence manner, various liquid medicines are sucked into the injection cavities according to use specifications before use, the connecting pipe structure of the joint structure is connected to the liquid outlet end of each injection cavity, the needle is inserted after an injection part is selected, then injection operation is carried out, connect an export of joint design back sharing, through setting up the check valve, realize the one-way flow direction of liquid medicine, only go out not advance, can realize not changing under the prerequisite of syringe, inject different kinds of medicine in succession, and effectively avoid different medicines intermix, link up untimely, articulate poor stability scheduling problem when changing the syringe.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of an embodiment of a body of an injection device according to the present invention;
FIG. 2 is a schematic structural view of an embodiment of a joint structure of the injection device of 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 connection tube and the outlet of the injection cavity of the injection device of the present invention;
fig. 5 is a schematic view of the end face of the plunger stem of the injection device of the present invention.
In the figure: 1. a body; 2. a joint structure; 3. a connecting member; 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 connecting 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 slot; 121. a second injection cavity; 122. a second arc-shaped slot; 131. a third injection cavity; 141. a slot structure; 151. a groove; 152. smoothing and transiting; 153. a raised structure; 251. sealing the protrusion; 252. a connecting layer; 253. a sealing layer; 254. 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 is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
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, as shown in fig. 1, the body 1 is configured to comprise a plurality of injection assemblies, and injection cavities of the plurality of injection assemblies are integrally formed.
In this embodiment, three injection assemblies are provided, which are respectively 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 length of the first injection cavity 111, the second injection cavity 121 and the third injection cavity 131 is the same, that is, the cross sections of the first injection cavity 111, the second injection cavity 121 and the third injection cavity 131 are stable triangular structures, so that the injection device is more stable in use and convenient to operate with 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 volume of the first injection cavity 111 and the second injection cavity 121 is set to 10ml, and the volume of the third injection cavity 131 is set to 5 ml.
The joint structure 2 is connected to the body 1, fig. 2 is a schematic structural diagram of the joint structure in this embodiment, as shown in fig. 2, the joint structure 2 includes a plurality of connecting tube structures and a liquid outlet tube structure 24, in this embodiment, the connecting tube structure includes a first connecting tube structure 21, a second connecting tube structure 22 and a third connecting tube structure 23.
The inner part 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 end of the injection cavity is connected with the connecting pipe structures in a one-to-one correspondence manner.
Before using with in various liquid medicine according to the use specification suction injection cavity earlier, then at the link structure of every injection cavity's play liquid end joint design 2, the needle is advanced after having selected the injection position, carry out the injection operation again, through connect many unification one-way joint designs 2 on the body, connect an export of joint design 2 back sharing, through setting up check valve 26, realize the one-way flow direction of liquid medicine, only go out not advance, can realize not changing under the prerequisite of syringe, inject different kinds of medicine in succession, and effectively avoid different medicine intermix, link up untimely when changing the syringe, the scheduling problem of articulate poor stability.
As an optional implementation manner, fig. 3 is a schematic structural diagram of the connecting piece in this embodiment, as shown in fig. 3, the connecting piece 3 is configured to include a housing 31, a truncated cone-shaped inner core 32 is disposed inside the housing 31, a truncated cone-shaped through hole 33 is formed in the center of the inner core 32, the truncated cone-shaped inner core 32 can be connected with a joint of an injection needle more tightly by setting, so as to avoid a liquid leakage phenomenon, through the truncated cone-shaped through hole 33, during an injection process, a liquid medicine is injected from a large-caliber end, and a liquid is discharged from a small-caliber end, so that the injection process is smoother, through setting a thread 34 on an inner surface of the housing 31, the joint for connecting the injection needle is configured in a threaded connection manner, so that the connection is.
In this embodiment, preferably, the end of the connecting member 3 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 optional implementation manner, fig. 4 is a schematic cross-sectional structural view of a connection portion between the connection tube structure and the liquid outlet end of the injection cavity in this embodiment, as shown in fig. 4, a sealing structure 25 is disposed on an inner wall of the connection tube structure, the sealing structure 25 includes a plurality of sealing protrusions 251, and bottoms of the sealing protrusions 251 and the inner wall of the connection tube structure are arranged at an obtuse angle, so that the connection is smoother during use and connection, and the sealing effect is effectively enhanced.
As an optional implementation manner, 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, the distance between the sealing protrusions 251 is linearly increased, the disassembly and the assembly are labor-saving, the sealing effect is effectively improved, and the sealing structure can be pulled out forcibly during the disassembly.
As an alternative embodiment, the sealing structure 25 is configured to include a connection layer 252, a sealing layer 253, and a buffer layer 254 disposed between the connection layer 252 and the sealing layer 253, wherein:
connecting layer 252 fixed connection is on the inside wall of connecting tube structure, be provided with sealed arch 251 on the sealing layer 253, through set up buffer layer 254 between connecting layer 252 and sealing layer 253, can further improve seal structure's shock-absorbing capacity, improve this seal structure's elasticity, but the multiple heterogeneous syringe of adaptation, in this embodiment, preferably, seal structure adopts the rubber material, certain hardness has, and good elasticity has, and the chemistry physical properties is all stable, good reliability, can realize the sealing connection between body 1 and the joint design 2 well, satisfy the user demand.
As an optional implementation manner, the liquid outlet end 14 is provided with a clamping groove structure 141, and the clamping groove structure 141 is used for accommodating the sealing protrusion 251, in this embodiment, preferably, the clamping groove structure 141 for accommodating the sealing protrusion 251 is provided in the liquid outlet end 14, and by the tight fit between the sealing protrusion 251 and the clamping groove structure 141, the sealing effect is improved, the phenomenon of liquid leakage during use is avoided, and meanwhile, the problem of poor stability of the joint connection 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 end 14 to prevent the liquid from being stored in the slot structure 141 when the liquid is taken out.
As an alternative embodiment, the outer surfaces of the first injection cavity 111 and the second injection cavity 121 are respectively provided with a first arc-shaped slot 112 and a second arc-shaped slot 122, wherein: first arc wall 112 and second arc wall 122 all set up to three, through setting up first arc wall 112 and second arc wall 122, when pushing out the liquid medicine, the finger is placed in the arc wall, can realize the one-hand operation injection, easy operation, convenience, save the time of nursing and injection.
As an alternative implementation, fig. 5 is a schematic structural diagram of the end surface of the piston rod in the present embodiment, and as shown in fig. 5, the end portions of the piston rods of the injection assembly are each provided with an elliptical groove 151, where: the week side of recess 151 sets up to smooth transition 152 with piston handle 15 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, week side of recess 151 sets up to smooth transition 152 with piston handle 15, and comfortable good operation sets up a plurality of protruding structures 153, increases the friction of recess 151 department, and the landing when avoiding using increases overall device's stability in use and security.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (10)
1. An injection device, comprising:
a body configured to include a plurality of injection assemblies, injection cavities of the plurality of injection assemblies being integrally formed;
the connector structure is connected to the body and comprises a plurality of connecting pipe structures and a liquid outlet pipe structure, wherein a one-way valve is arranged inside 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 each liquid outlet pipe structure, and the liquid outlet pipe structures are connected with an injection needle through the connecting pieces;
the liquid outlet end of the injection cavity is connected with the connecting pipe structures in a one-to-one correspondence manner.
2. The injection device of claim 1, wherein: the connector is provided to include a housing, wherein:
a truncated cone-shaped inner core is arranged inside 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. The injection device of claim 1 or 2, wherein: 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 and the inner wall of the connecting pipe structure are arranged at an obtuse angle.
4. The injection device of claim 3, wherein: the sealing bulges are sequentially arranged from the inside to the end part of the connecting pipe structure, and the distance between the sealing bulges is linearly increased.
5. The injection device of claim 4, wherein: the seal structure sets up to include articulamentum, sealing layer and set up in articulamentum 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 bulges.
6. The injection device of claim 4 or 5, wherein: the liquid outlet end is provided with a clamping groove structure, and the clamping groove structure is used for accommodating the sealing bulge.
7. The injection device of claim 6, wherein: the body is 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 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.
8. The injection device of claim 7, wherein: the surface of first injection cavity with the second injection cavity sets up first arc wall and second arc wall respectively, wherein:
the first arc-shaped grooves and the second arc-shaped grooves are all three.
9. The injection device of claim 1 or 2, wherein: the piston handle tip of injection assembly all sets up oval-shaped recess, wherein:
the periphery of the groove and the piston handle are arranged to be in smooth transition, and a plurality of protruding structures are arranged in the groove.
10. The injection device of claim 3, 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 true CN112933344A (en) | 2021-06-11 |
| CN112933344B CN112933344B (en) | 2023-04-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| 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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| Publication number | Publication date |
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| CN112933344B (en) | 2023-04-25 |
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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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