CN210096560U - Multicomponent premixing injection device - Google Patents
Multicomponent premixing injection device Download PDFInfo
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- CN210096560U CN210096560U CN201920357441.5U CN201920357441U CN210096560U CN 210096560 U CN210096560 U CN 210096560U CN 201920357441 U CN201920357441 U CN 201920357441U CN 210096560 U CN210096560 U CN 210096560U
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- opening
- injection apparatus
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Abstract
The utility model discloses a multi-component premixing injection device, which comprises a first injection device, a second injection device, a push rod and a sealing film; the first injection device is cylindrical, one end of the first injection device is provided with an opening for injection, and the other end of the first injection device is provided with an opening for placing a second injection device; the second injection device is cylindrical and is arranged in the first injection device and can slide in the first injection device; the front end of the second injection device is provided with a liquid discharge hole, and the rear end of the second injection device is provided with an opening for placing the push rod; the push rod is arranged in the second injection device and can slide in the second injection device; sealing the liquid discharge hole by a sealing film; the push rod pushes the liquid in the second injection device forward, which can crush the sealing membrane. The utility model discloses simple structure, convenient operation, but the injection device of flash mixed multicomponent injection medicine.
Description
Technical Field
The utility model relates to the field of medical equipment, concretely relates to multicomponent injection device that mixes in advance.
Background
When some patients are treated, the multi-component medicine compatibility is needed to achieve better curative effect, and the injection frequency of the patients can be reduced. However, many drugs may undergo chemical reactions if they are mixed for a long time, and thus the drug efficacy is affected, and thus an injection device capable of separately dispensing the drugs of different required components and rapidly mixing the same before injection is required.
Among the known syringes there are also syringes for multi-component materials, such as CN106457173A, which relates to syringes for multi-component materials, methods for activating syringes, mixing and dispensing apparatuses and multi-component cartridges, but they are complicated in structure, inconvenient in operation, costly in one-time use, and not practical in production. For another example, CN204972546U relates to a primary-secondary type double-tube medicine mixing syringe, which has multiple injection heads, is bulky, is inconvenient to use and place in a limited surgical field, and cannot uniformly and effectively mix multiple medicine components.
Disclosure of Invention
The utility model aims to provide an injection device which has simple structure and convenient operation and can rapidly mix multi-component injection medicine, aiming at low-value medicine, the injector can be used as medical consumable material; for medical products with high added values, such as bone cement, the product can be pre-stored in the injector, and the injector is directly opened for injection when in use, so that the operation steps of medical care personnel and the infection risk of patients are reduced. In addition, for the limited operation visual field in the operation, the eccentrically arranged syringe needle reduces the visual field blind area of the operator, thereby increasing the operation simplicity and reducing the occurrence of operation accidents to a certain extent.
In one aspect of the present invention, a multicomponent premixing injection device is provided, which comprises a first injection device, a second injection device, a push rod, and a sealing film;
the first injection device is cylindrical, one end of the first injection device is provided with an opening for installing an injection needle, and the other end of the first injection device is provided with an opening for placing the second injection device;
the second injection device is cylindrical and is arranged in the first injection device and can slide in the first injection device; the front end of the second injection device is provided with a liquid discharge hole, and the rear end of the second injection device is provided with an opening for placing the push rod;
the push rod is arranged in the second injection device and can slide in the second injection device;
the sealing film closes the liquid discharge hole; pushing the liquid in the second injection device forward by the push rod may rupture the sealing membrane.
Above multicomponent premix injection device, preferably, the inside joint portion that still is provided with of second injection device, joint portion can the push rod pushes completely behind the second injection device, joint push rod rear end, make push rod longitudinal position fixed, can not slide.
The multicomponent premixing injection device as described above preferably further comprises a protective cap, wherein the protective cap is disposed at the opening for mounting the injection needle to prevent the medicine from overflowing during the process of mixing the medicine.
In the above multicomponent premix injection apparatus, it is preferable that the first injection device is divided into a first injection device body and a first injection device eccentric portion, and the first injection device eccentric portion has a cylindrical structure having a diameter smaller than that of the first injection device body and having a different axis from that of the first injection device body.
The multi-component premix injection apparatus as described above, preferably, at least a portion of the second injection means is a transparent material. More preferably, the second injection means is entirely of transparent material.
In the above-described multicomponent premixing injection device, it is preferable that at least a part of the first injection device body is made of a transparent material. More preferably, the first injection device body is entirely of a transparent material.
Advantageous effects
The utility model discloses a multicomponent injection device that mixes in advance, the device treat the injection medicine through the second in the push rod extrusion second injection device, make the second treat the injection medicine break through the seal membrane, flow out from the outage, thereby it mixes with the first injection medicine that treats in the first injection device to get into first injection device, promote the second injection device again and can inject the medicine after mixing into patient and need the position. The scheme that this application has designed joint portion can also effectually prevent that the liquid that first injection device intracavity mixture was accomplished from flowing back to second injection device through the outage when injecting. The multi-component premixing injection device is simple in structure, low in manufacturing cost and simple and convenient to operate, only medical workers need to press twice, and when the multi-component premixing injection device is convenient for the medical workers to operate, the time of a patient is saved, infection is reduced, and the like.
Drawings
FIG. 1 is a schematic structural view of a multicomponent premixing injection apparatus of the present invention;
FIG. 2 is a front view of the multi-component premix injection apparatus of the present invention;
FIG. 3 is a top plan view of the multi-component premix injection apparatus of the present invention;
FIG. 4 is a right side view of the multi-component premix injection apparatus of the present invention;
FIG. 5 is a left side view of the multi-component premix injection apparatus of the present invention;
FIG. 6 is a cross-sectional view of the multi-component premix injection apparatus of the present invention taken along the line of FIG. 3A-A;
FIG. 7 is a right side view of a second injection device of embodiment 2 of the plural component premix injection apparatus of the present invention;
FIG. 8 is an enlarged partial schematic view of a second injection apparatus of example 2 of the plural component premixing injection apparatus of the present invention;
FIG. 9 is an enlarged partial cross-sectional view in the direction of FIG. 3A-A showing the plunger of embodiment 2 of the plural component premix injection apparatus of the present invention in a clamped condition;
FIG. 10 is a cross-sectional view of a second injection device of embodiment 2 of the multi-component premix injection apparatus of the present invention taken along the direction of FIG. 9B-B;
the reference numbers are as follows:
the injection device comprises a first injection device 1, a first injection device eccentric part 11, an opening 12 for injection, a protective cap 2, a second injection device 3, a liquid discharge hole 31, a clamping part 32, a push rod 4 and a sealing film 5.
Detailed Description
The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention. Unless otherwise specified, the technical means used in the examples are conventional means well known to those skilled in the art.
Example 1
Referring to fig. 1 to 6, the present embodiment provides a multicomponent premixing injection apparatus including a first injection apparatus 1, a second injection apparatus 3, a push rod 4, a sealing film 5;
the first injection device 1 is cylindrical, one end of the first injection device is provided with an opening 12 for injection, and the other end of the first injection device is provided with an opening for placing the second injection device 3; the second injection device 3 is cylindrical, is arranged in the first injection device 1 and can slide in the first injection device 1; the front end of the second injection device 3 is provided with a liquid discharge hole 31, and the rear end is provided with an opening for placing the push rod 4; the push rod 4 is arranged inside the second injection device 3 and can slide inside the second injection device 3, and the sealing film 5 seals the liquid discharge hole 31; specifically, the sealing film 5 is a film that can prevent the second injection solution in the second injection device 3 from mixing with the first injection solution in the first injection device 1 and can be broken when the second injection solution is extruded by the push rod 4, and can be made of materials such as polyurethane, polyvinyl chloride (PVC), polyamide (nylon) and the like. The push rod 4 pushes the liquid in the second injection device 3 forward to break the sealing film 5 at the liquid discharge hole 31.
The multicomponent premixing injection device of the present embodiment further comprises a protective cap 2, the protective cap 2 is covered on the opening 12 for injection, and can be various detachable connection manners such as snap connection and screw connection, and is used for protecting the opening 12 for injection of the first injection device 1, so as to prevent contamination and drug overflow during the mixing process.
The first injection device 1 is divided into a first injection device 1 body and a first injection device eccentric part 11, the first injection device eccentric part 11 is a cylindrical structure with the diameter smaller than the different axial centers of the first injection device 1 body and the first injection device 1 body, the first injection device eccentric part 11 occupies 1/3-1/2 of the longitudinal length of the first injection device 1, and the design of the first injection device eccentric part 11 enables the injection device to be more attached to a part to be injected (particularly, when medicine or other medical products such as bone cement are injected in a limited operation visual field, the visual field blind area of an operator is greatly reduced due to the eccentric arrangement, in addition, after a femoral head necrosis patient carries out medullary core decompression, the injector can be more attached to a femoral stem to carry out injection of biological materials), so that the injection operation is easier, and the injected medicine enters more smoothly.
At least one part of the second injection device 3 is made of transparent material, and at least one part of the body of the first injection device 1 is made of transparent material, preferably, the first injection device 1 and the second injection device 3 are made of transparent material, so that the medical staff can observe the mixing condition and the dosage condition of the medicines during operation.
When the injection device is used, the push rod 4 is pushed, the front end of the push rod 4 pushes the second injection to be injected in the second injection device 3, the second injection to be injected extrudes the sealing membrane 5 at the position of the liquid discharge hole 31, the sealing membrane 5 is extruded to be broken under the action of pressure, the second injection to be injected flows into the first injection device 1 through the liquid discharge hole 31 to be mixed with the first injection to be injected in the first injection device 1, the first injection device 1 can be reversed front and back for uniform mixing, and the second injection device 3 is pushed to inject the mixed injection in the first injection device 1 into a part to be injected of a patient after the first injection to be injected and the second injection to be injected are uniformly mixed. For low-value medicines (such as dexamethasone and lidocaine for local sealing), the injection device can be used as a medical consumable (firstly, one medicine is inhaled through the first injection device 1, then the other medicine is inhaled, and injection of a designated part is carried out after the medicines are uniformly mixed in the first injection device 1); for medical products with high added values, such as bone cement, the injection material can be pre-stored in the injection device, aseptic packaging is independently carried out after disinfection and sterilization, the outer package is directly torn open during use, the injection device is opened, and the injection is carried out after the material is uniformly mixed, so that the operation steps of medical workers and the infection risk of patients are reduced.
Example 2
Referring to fig. 7 to 10, the second injection device 3 of the present embodiment is further provided with a latch portion 32 at the opening for inserting the push rod 4, and the latch portion 32 may be a latch piece, a latch barb, or the like, so that the rear end of the push rod 4 can not be retracted after pushing through the latch portion 32. The other structure is the same as that of embodiment 1, and the description will not be repeated.
During the use, promote push rod 4, make the second of push rod 4 front end promotion second injection device 3 wait to inject liquid, the second waits that the injection extrudees seal membrane 5 of outage 31 department, seal membrane 5 is broken by the pressure effect, the second waits that the injection flows into first injection device 1 through outage 31, mix with the first injection device 1 that waits of first injection device 1, push rod 4 pushes the rear end of push rod 4 through joint 32 just when contacting outage 31, push rod 4 is blocked by joint 32 and can not retreat, after first injection device that waits with the second injection liquid misce bene, promote second injection device 3 and inject the mixed injection in first injection device 1 into the patient and wait to inject the position, push rod 4 can not retreat because of reverse pressure after being blocked by joint 32, block up outage 31 simultaneously, the back flow of the mixed liquid of waiting to inject has been avoided.
Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (6)
1. A multi-component premix injection apparatus comprising a first injection apparatus, a second injection apparatus, a push rod, a sealing membrane;
the first injection device is cylindrical, one end of the first injection device is provided with an opening for injection, and the other end of the first injection device is provided with an opening for placing the second injection device;
the second injection device is cylindrical and is arranged in the first injection device and can slide in the first injection device; the front end of the second injection device is provided with a liquid discharge hole, and the rear end of the second injection device is provided with an opening for placing the push rod;
the push rod is arranged in the second injection device and can slide in the second injection device;
the sealing film closes the liquid discharge hole; pushing the liquid in the second injection device forward by the push rod may rupture the sealing membrane.
2. The multi-component premix injection apparatus according to claim 1, wherein a snap-fit portion is further provided in the second injection apparatus, and the snap-fit portion can snap-fit the rear end of the push rod after the push rod is completely pushed into the second injection apparatus, so that the push rod is fixed in longitudinal position and cannot slide.
3. The multicomponent premix injection apparatus as in claim 1, further comprising a protective cap disposed at the opening for mounting an injection needle.
4. The multi-component premix injection apparatus of claim 1, wherein the first injection device is divided into a first injection device body and a first injection device eccentric, the first injection device eccentric being a cylindrical structure having a smaller diameter than the first injection device body.
5. The multi-component premix injection apparatus of claim 1 wherein at least a portion of the second injection apparatus is a transparent material.
6. The multi-component premix injection apparatus of claim 4 wherein at least a portion of the first injection apparatus body is a transparent material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920357441.5U CN210096560U (en) | 2019-03-20 | 2019-03-20 | Multicomponent premixing injection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920357441.5U CN210096560U (en) | 2019-03-20 | 2019-03-20 | Multicomponent premixing injection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210096560U true CN210096560U (en) | 2020-02-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920357441.5U Active CN210096560U (en) | 2019-03-20 | 2019-03-20 | Multicomponent premixing injection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210096560U (en) |
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2019
- 2019-03-20 CN CN201920357441.5U patent/CN210096560U/en active Active
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