CN212854245U - Positive pressure injection mechanism - Google Patents
Positive pressure injection mechanism Download PDFInfo
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- CN212854245U CN212854245U CN202020309709.0U CN202020309709U CN212854245U CN 212854245 U CN212854245 U CN 212854245U CN 202020309709 U CN202020309709 U CN 202020309709U CN 212854245 U CN212854245 U CN 212854245U
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Abstract
The utility model relates to a positive pressure injection mechanism, which comprises an injection material source and an injection device; the injection material source may actively deliver injection material into the injection device; the injection device is of a tubular structure and is provided with a hollow part; the hollow part of the injection device is communicated with an injection material source; the injection device is arranged to be communicated with the side surface of the injection device and extends along the radial direction of the injection device to form a groove, and the groove cuts off the hollow part and divides the hollow part into two parts; a stop block with a through part is arranged in the groove; the through part can move along the extending direction of the groove; when the through part is communicated with the hollow part, the hollow part forms a passage; when the through part is not communicated with the hollow part, the hollow part is blocked by the block, and the passage cannot be formed. The mechanism can be used for continuously injecting large-dose injection materials, is simpler and more convenient to operate, has high injection stability and good controllability in small-dose injection; simultaneously, the inner diameter-variable groove of the mechanism is provided with the stop block, so that the buffer effect can be achieved, and the medical accident risk can be avoided.
Description
Technical Field
The utility model relates to the field of medical equipment, especially, relate to a malleation injection mechanism.
Background
The injector is a common medical instrument, and the existing injector usually adopts a manual injection mode to inject injection materials such as medicines, injection or blood vessel adhesives and the like into the part of a human body needing treatment; the problems with this type of syringe are: because the capacity of the needle tube is limited, when a large dose of injection is carried out, injection materials need to be extracted for multiple times, and continuous injection cannot be carried out; meanwhile, when a large-capacity needle tube (such as a 50cc needle tube) is adopted, both hands of an operator are often required to operate, so that the operator cannot perform other operations at the same time, and the treatment efficiency and effect are influenced; in addition, the stability of the bolus injection and the controllability of the small-dose injection are poor by manual bolus injection.
Disclosure of Invention
The utility model overcomes prior art's is not enough, provides an easy operation, malleation injection mechanism that can inject in succession.
In order to achieve the above purpose, the utility model adopts the technical scheme that: provided is a positive pressure injection mechanism, which is characterized in that: comprises an injection material source and an injection device; the injection material source may actively deliver injection material into the injection device; the injection device is of a tubular structure and is provided with a hollow part; the hollow part of the injection device is communicated with an injection material source; the injection device is arranged to be communicated with the side surface of the injection device and extend a groove along the radial direction of the injection device, and the groove cuts off the hollow part and divides the hollow part into two parts; a stop block with a through part is arranged in the groove; the through part can move along the extending direction of the groove; when the through part is communicated with the hollow part, the hollow part forms a passage; when the through part is not communicated with the hollow part, the hollow part is blocked by the block, and the passage cannot be formed.
Preferably, the groove is a variable inner diameter groove, and the side with the larger inner diameter is positioned at the outer side and communicated with the side surface of the injection device; one side with small inner diameter of the groove is positioned at the inner side to separate the hollow part; the side face of the stop block is tightly attached to the side face of the side with the small inner diameter of the groove.
As a more preferable mode, the groove cuts off the hollow part vertically; the through part of the stop block is a through hole; when the stop block moves up and down in the groove, the through hole can be completely communicated with two parts of the hollow part cut off by the groove or at least not communicated with one part of the hollow part.
Preferably, one end of the stop block extends out of the side surface of the injection device and is connected with the press button; the bottom of the press button has a gap with the side of the injection device.
More preferably, the stop is sleeved with a spring and is located between the bottom of the press button and the side of the injection device.
More preferably, the stopper is connected to the press button by a screw.
As a preferable scheme, two holding pieces are symmetrically arranged on the side surface of the injection device; the position of the holding piece and the position of the groove form an included angle of 90 degrees along the circumferential direction of the injection device.
The beneficial technical effects of the utility model mainly lie in: the positive pressure injection mechanism which is simple to operate and can carry out continuous injection is provided; the mechanism changes the injection mode of the conventional manual injection, can continuously inject large-dose injection materials, and has the advantages of simpler and more convenient operation, high injection stability and good controllability of small-dose injection; simultaneously, the groove with the variable inner diameter of the mechanism is provided with the stop block, so that the buffer effect can be achieved, and the injection material which possibly seeps out can be prevented from rapidly flowing out of the injection mechanism, so that the medical accident risk can be avoided.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is an exploded schematic view of the preferred embodiment of the present invention.
Fig. 2 is a schematic structural view of the injection device of the present invention.
Figure 3 is an exploded view of the injection device of the present invention (without the stop).
In the figure: 1 is a hollow part, 2 is a groove, 21 is the side with the larger inner diameter of the groove, 22 is the side with the smaller inner diameter of the groove, 3 is a stop, 31 is a through hole, 4 is a press button, 5 is a holding sheet, 6 is a spring, 7 is an injection material source, and 8 is an injection needle.
Detailed Description
The invention will now be described in further detail with reference to the accompanying drawings, which are simplified schematic drawings and illustrate, by way of illustration only, the basic structure of the invention, and which therefore show only the constituents relevant to the invention. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
As shown in fig. 1-3, a positive pressure injection mechanism is used in conjunction with an injection needle 8 for positive pressure injection of injection materials such as related drugs, injection solutions or vascular adhesives into a human body; the mechanism comprises an injection material source 7 and an injection device.
The injection device is of a tubular structure and is provided with a hollow part 1; one end of the injection device is provided with an external thread for connecting an injection needle 8, and the other end is provided with an internal thread for connecting an injection material source 7; the hollow portion 1 communicates with both the injection material source 7 and the injection needle 8. The injection material source 7 actively feeds the injection material from the storage position into the hollow 1 of the injection device by means of a delivery pump or positive pressure.
The side surface of the injection device is provided with a groove 2 extending inwards along the radial direction of the injection device; the groove 2 is a variable inner diameter groove, and one side 21 with a larger inner diameter is positioned at the outer side and communicated with the side surface of the injection device; the side 22 with the small inner diameter of the groove 2 is positioned at the inner side and vertically cuts off the hollow part 1 to be divided into two parts; a stop block 3 with a through hole 31 is arranged in the groove 2, and the side surface of the stop block 3 is tightly attached to the side surface of the side 22 with the small inner diameter of the groove 2; the block 3 can move along the extending direction of the groove 2 under the action of external force (namely, the through hole 31 can move along the extending direction of the groove 2 under the action of external force); the position of the through hole 31 corresponds to the position of the hollow part 1, so that when the stop block 3 moves up and down in the groove 2, the through hole 31 can be communicated with two parts of the hollow part 1 cut off by the groove 2 or not communicated with the two parts of the hollow part 1; when the through hole 31 communicates with the hollow portion 1, the hollow portion 1 forms a passage (i.e., a passage is formed in the injection device) through which the injection material delivered from the injection material source 7 can pass and finally be injected from the injection needle 8; when the through hole 31 is not communicated with the hollow part 1 completely, the hollow part 1 is blocked by the block 3, a passage cannot be formed (namely, no passage exists in the injection device), and the injection material conveyed by the injection material source 7 cannot be injected from the injection needle 8 and is blocked by the block; thereby, a passage is established or closed in the injection device through the up-and-down movement of the stop block 3 in the groove 2, thereby realizing the injection and stop of the injection material; the groove 2 can play a role in buffering by adopting the design of variable inner diameter; that is, when the stopper 3 moves in the groove 2 or otherwise, the injection material may slightly seep out along the gap between the stopper 3 and the groove 2; the inner diameter of the groove 2 close to the outer side is designed to be larger, so that the exuded injection material can be prevented from rapidly flowing out of the injection device, and the medical accident risk is avoided; in addition, the hollow part 1 is designed to have a variable inner diameter structure, and the cut part of the hollow part 2 is designed to have a small inner diameter, so that the injection stability and the dosage of the injection material can be better controlled by matching the stopper 3 and the through hole 31.
One end of the stop block 3 extends out of the side surface of the injection device and is connected with the press button 4 through threads; the bottom of the button 4 has a gap with the side of the injection device (i.e. the two do not top together); the spring 6 is sleeved on the periphery of the position, between the bottom of the press button 4 and the side face of the injection device, of the stop block 3, so that the press button 4 can be automatically reset after the press button 4 is loosened. During operation: the operator presses the button 4 to move the stopper 3 downwards in the groove 2, so that the through hole 31 communicates with the hollow part 1, thereby forming a passage in the injection device; after the button 4 is released, the button 4 automatically resets and the through hole 31 is not connected with the hollow part 1, thus the passage in the injection device is closed.
The side surface of the injection device is also symmetrically provided with two holding sheets 5; the position of the holding piece 5 and the position of the groove 2 form an included angle of 90 degrees along the circumferential direction of the injection device, so that an operator can conveniently use an index finger and a middle finger to prop against the two holding pieces 5 from the lower part and use a thumb to press the press button 4, and the injection device is convenient and labor-saving.
In light of the foregoing, it is to be understood that various changes and modifications may be made by those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (7)
1. A positive pressure injection mechanism, characterized by: comprises an injection material source and an injection device; the injection material source may actively deliver injection material into the injection device; the injection device is of a tubular structure and is provided with a hollow part; the hollow part of the injection device is communicated with an injection material source; the injection device is arranged to be communicated with the side surface of the injection device and extend a groove along the radial direction of the injection device, and the groove cuts off the hollow part and divides the hollow part into two parts; a stop block with a through part is arranged in the groove; the through part can move along the extending direction of the groove; when the through part is communicated with the hollow part, the hollow part forms a passage; when the through part is not communicated with the hollow part, the hollow part is blocked by the block, and the passage cannot be formed.
2. The positive pressure injection mechanism of claim 1, wherein: the groove is a variable inner diameter groove, and one side with the larger inner diameter of the groove is positioned at the outer side and communicated with the side surface of the injection device; one side with small inner diameter of the groove is positioned at the inner side to separate the hollow part; the side face of the stop block is tightly attached to the side face of the side with the small inner diameter of the groove.
3. The positive pressure injection mechanism of claim 2, wherein: the groove vertically cuts off the hollow part; the through part of the stop block is a through hole; when the stop block moves up and down in the groove, the through hole can be completely communicated with two parts of the hollow part cut off by the groove or at least not communicated with one part of the hollow part.
4. The positive pressure injection mechanism of claim 1, wherein: one end of the stop block extends out of the side surface of the injection device and is connected with the press button; the bottom of the press button has a gap with the side of the injection device.
5. The positive pressure injection mechanism of claim 4, wherein: the stop block is sleeved with the spring and is positioned between the bottom of the press button and the side surface of the injection device.
6. The positive pressure injection mechanism of claim 5, wherein: the stop block is connected with the press button through threads.
7. The positive pressure injection mechanism of claim 1, wherein: the side surface of the injection device is also symmetrically provided with two holding pieces; the position of the holding piece and the position of the groove form an included angle of 90 degrees along the circumferential direction of the injection device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020309709.0U CN212854245U (en) | 2020-03-13 | 2020-03-13 | Positive pressure injection mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020309709.0U CN212854245U (en) | 2020-03-13 | 2020-03-13 | Positive pressure injection mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212854245U true CN212854245U (en) | 2021-04-02 |
Family
ID=75185546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020309709.0U Active CN212854245U (en) | 2020-03-13 | 2020-03-13 | Positive pressure injection mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212854245U (en) |
-
2020
- 2020-03-13 CN CN202020309709.0U patent/CN212854245U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 215000 c5051, building 1, 209 Zhuyuan Road, high tech Zone, Suzhou City, Jiangsu Province Patentee after: Tianqin Tepu new medical technology (Suzhou) Co.,Ltd. Address before: C1022, building 1, No. 209, Zhuyuan Road, high tech Zone, Suzhou City, Jiangsu Province Patentee before: Suzhou Tepxin Intelligent Technology Co.,Ltd. |
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| CP03 | Change of name, title or address |