CN213432293U - Full needle insertion type hypodermic syringe - Google Patents
Full needle insertion type hypodermic syringe Download PDFInfo
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- CN213432293U CN213432293U CN202020729515.6U CN202020729515U CN213432293U CN 213432293 U CN213432293 U CN 213432293U CN 202020729515 U CN202020729515 U CN 202020729515U CN 213432293 U CN213432293 U CN 213432293U
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- wall surface
- hypodermic syringe
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Abstract
A full needle-insertion type hypodermic syringe is provided with an injection tube and an injection needle, wherein the length of the needle head of the injection needle is 3-10 mm; the injection needle is arranged at one end of the injection cylinder. When the full needle-inserting type hypodermic syringe is used, the injection needle head is completely inserted into the body of a patient through vertical needle insertion, so that the needle tip is accurately inserted into subcutaneous tissues. The hypodermic syringe is simpler and more convenient to operate, improves the accuracy, avoids puncturing too deeply, reduces misoperation and complications, and obviously improves the hypodermic effect.
Description
Technical Field
The utility model relates to the technical field of medical injection instruments, in particular to a full needle-inserting type hypodermic syringe.
Background
Subcutaneous injection is a common injection method of administering small amounts of sterile drugs into the subcutaneous tissue. The current method of using a hypodermic syringe is to tighten the skin in one hand and hold the syringe in the other hand, with the needle bevel facing up, at 30-40 deg. to the skin, and to quickly penetrate the needle 1/2-2/3 under the skin. Because the accuracy of the needle insertion depth and angle is difficult to control by the operator, misoperation can be caused, and the medicine effect cannot meet the requirement.
At present, except for insulin pens, the hypodermic injection is still injected by a common syringe according to the method. The length of the hypodermic needle in the prior art needs an operator to select different needle types according to experience, and the needle needs to be penetrated into the subcutaneous tissue at a needle point of 30-40 degrees with the skin when in use, the needle inserting depth is required to be 1/2-2/3 of the length of the needle, the operation difficulty is high, the accuracy is poor, and the needle is easy to penetrate into a muscle layer too deep, so that the operation error is caused.
Therefore, it is necessary to provide a full needle-insertion hypodermic syringe to overcome the deficiencies of the prior art.
Disclosure of Invention
An object of the utility model is to avoid prior art's weak point and provide a full needle-inserting type hypodermic syringe, this full needle-inserting type hypodermic syringe can improve current hypodermic technique, makes the operator change and masters, improves the accuracy nature, reduces the operation mistake and alleviates patient's misery.
The above object of the present invention is achieved by the following technical means.
Provides a full-needle-insertion type hypodermic syringe which is provided with an injection tube and an injection needle, wherein the length of the needle head of the injection needle is LNeedle(ii) a The injection needle is arranged at one end of the injection cylinder.
Preferably, 3 mm. ltoreq.LNeedle≤10mm。
Preferably, the syringe is provided with a cartridge, an injection push rod and a limit injection connecting part, wherein one end of the cartridge is connected with one end of the injection needle, one end of the injection push rod is defined as a deep-entering end, the other end of the injection push rod is defined as a pressing end, the injection push rod is assembled in the liquid medicine cavity of the cartridge from the deep-entering end, and one end of the limit injection connecting part is fixedly connected with the pressing end.
Preferably, the limiting injection connecting part is provided with a fixing rod and a spiral rotating rod, one end of the fixing rod is fixedly connected with the pressing end, and the inner wall surface of the spiral rotating rod is fixedly connected with the outer wall surface of the fixing rod through threaded screwing.
Preferably, the outer wall surface of the fixing rod and the inner wall surface of the screw rotating rod are respectively provided with a thread.
Preferably, above-mentioned injection cylinder still is provided with resilience subassembly, resilience subassembly respectively with the outer wall of dead lever, cartridge case fixed connection.
Preferably, the rebound assembly is provided with an outer housing, a spring and a connecting rod, one end of the cartridge connected to the injection needle is defined as an injection end, the other end of the cartridge is defined as an assembly end, and the outer housing is self-assembled at the assembly end and is L-shaped by the sleeveShellBe fixed in the outer wall of cartridge case, the one end tip of establishing the cartridge case with the outer casing cover is the casing stiff end, the outer wall fixed connection of casing stiff end and cartridge case, the one end definition of establishing by the outer casing cover in with the cartridge case is rear end parcel portion, be formed with between the internal face of the outer wall of the rear end parcel portion of cartridge case and shell body and be used for the spring, the rebound chamber of connecting rod assembly, the both ends of spring respectively with the casing stiff end, the one end of connecting rod is connected, the other end of connecting rod and the outer wall fixed connection of dead lever.
Preferably, one end of the cartridge not sleeved by the outer shell is defined as a front end tube, and the outer wall surface of the front end tube in the cartridge is at the same horizontal position as the outer shell.
Preferably, one or more springs and connecting rods are arranged.
Preferably, the injection plunger has a piston fixed to a deep end thereof.
Preferably, the needle has a depth of at least one of 4mm, 6mm and 8 mm.
Preferably, the above-mentioned further provided with a limiting cylinder, one end of the cartridge not sleeved by the outer shell is defined as a front end cylinder, and an outer wall surface of the limiting cylinder is fixed to an outer wall surface of the front end cylinder.
Preferably, the inner wall surface of the limiting cylinder is provided with a mounting groove, and the mounting groove is movably matched with the outer wall surface of the injection cylinder in a rotating manner; a sliding rail is fixed on the outer wall surface of the front end cylinder and assembled in the mounting groove;
preferably, the length of the limiting cylinder is LLimit ofThe length of the front end cylinder is LMedicine，LLimit of≤LMedicine；
Preferably, the mounting groove and the sliding rail are respectively provided with one or more than one.
The utility model discloses a full needle-inserting type hypodermic syringe, which is provided with an injection tube and an injection needle, and a LNeedleIs 3-10 mm; the injection needle is arranged at one end of the injection cylinder. When the full-needle-insertion type hypodermic syringe is used, the injection needle is completely inserted into the injection part of a patient through the vertical needle insertion, so that the medicine is completely and accurately injected into the subcutaneous tissue, the liquid medicine is completely absorbed by the blood vessel at the deep part of the subcutaneous tissue, the pain is relieved, the complication is reduced, and the effect of hypodermic injection is obviously improved.
Drawings
The present invention will be further described with reference to the accompanying drawings, but the contents in the drawings do not constitute any limitation to the present invention.
Fig. 1 is a schematic structural view of an embodiment 1 of a full needle-insertion type hypodermic syringe according to the present invention.
Fig. 2 is a schematic structural view of an embodiment 2 of a full needle-insertion hypodermic syringe according to the present invention.
Fig. 3 is a schematic structural view of an embodiment 2 of a full needle-insertion hypodermic syringe according to the present invention.
Fig. 4 is a schematic structural view of an embodiment 3 of a full needle-insertion type hypodermic syringe according to the present invention.
Fig. 5 is a schematic structural view of an embodiment 4 of a full needle-insertion hypodermic syringe according to the present invention.
In fig. 1 to 5, there are included:
syringe 100, cartridge 101, sliding rail 1011;
the injection push rod 102, the piston 1021;
a limit injection connecting part 103, a fixing rod 1031, a spiral rotating rod 1032;
a limiting cylinder 105 and a mounting groove 1051;
an injection needle 200.
Detailed Description
The invention will be further described with reference to the following examples.
Example 1.
A full-needle-insertion type hypodermic syringe, as shown in fig. 1, is provided with a syringe barrel 100 and a needle 200 having a needle tip length LNeedle(ii) a The injection needle 200 is arranged at one end of the injection tube 100, and L is more than or equal to 3mmNeedle≤10mm。
When the needle is inserted, all the needle heads enter to ensure the stability of the needle head and ensure the accuracy and the effectiveness of the needle insertion depth; and the operation failure caused by the fact that the steel needle penetrates into the muscular layer too deeply and the operation difficulty is reduced.
Wherein, the syringe 100 is provided with a cartridge 101, an injection push rod 102 and a limit injection connecting part 103. One end of the medicine cartridge 101 is connected with one end of the injection needle 200, one end of the injection push rod 102 is defined as a deep end, the other end of the injection push rod 102 is defined as a pressing end, the injection push rod 102 is assembled in the liquid medicine cavity of the medicine cartridge 101 from the deep end, and one end of the limiting injection connecting part 103 is fixedly connected with the pressing end.
Specifically, the limiting injection connecting portion 103 is provided with a fixing rod 1031 and a screw rotating rod 1032, one end of the fixing rod 1031 is fixedly connected with the pressing end, and the inner wall surface of the screw rotating rod 1032 is fixedly connected with the outer wall surface of the fixing rod 1031 through screwing.
The outer wall surface of the fixing lever 1031 and the inner wall surface of the screw rotation lever 1032 are respectively provided with a screw thread. A moving cavity body for the fixed rod to move spirally is arranged inside the spiral rotating rod, and a piston 1021 is fixed at the deep end of the injection push rod 102.
LNeedleAt least one of 4mm, 6mm or 8 mm. A needle length of 4mm is intended for use by children, a needle length of 6mm is intended for use by adult women, and a needle length of 8mm is provided for use by adult men. In actual use, the user can select the length of the needle according to the actual use.
The full needle-feeding type hypodermic syringe is provided with a syringe and an injection needle, wherein the syringe is provided with a cartridge, an injection push rod and a limiting injection connecting part, the limiting injection connecting part is provided with a fixed rod and a spiral rotating rod, the spiral rotating rod rotates and adjusts the position of the fixed rod to adjust the dosage of injection liquid medicine when in use, the spiral rotating rod is pressed by a vertical needle feeding method to inject the liquid medicine into an injection part of a patient through the injection push rod, and the length of the needle head of the injection needle is controlled to be 3-10 mm; the injection needle is completely penetrated into the injection part of a patient, so that the medicine is completely injected into the deep part of the subcutaneous tissue, the liquid medicine is completely absorbed by the blood vessel at the deep part of the subcutaneous tissue, the pain is relieved, the complication is reduced, and the effect of subcutaneous injection is obviously improved.
Example 2.
A full needle hypodermic syringe, which has the same structure as that of embodiment 1, except that, as shown in fig. 2 and 3, the syringe barrel 100 is further provided with a resilient member 104, and the resilient member 104 is fixedly connected to the outer wall surface of the fixing rod 1031 and the cartridge 101.
The resilient member 104 is provided with an outer housing 1041, a spring 1042 and a connecting rod 1043, one end of the cartridge 101 connected to the injection needle 200 is defined as an injection end, the other end of the cartridge 101 is defined as an assembling end, and the outer housing 1041 is sleeved at the assembling end by a length LShellBe fixed in the outer wall of cartridge case 101, the one end tip of establishing cartridge case 101 with outer casing 1041 cover is the casing stiff end, casing stiff end and cartridge case 101's outer wall fixed connection, the one end of establishing by outer casing 1041 cover in with cartridge case 101 is defined as the rear end parcel, be formed with between the inner wall of the outer wall of the rear end parcel of cartridge case 101 and outer casing 1041 and be used for spring 1042, the chamber of kick-backing of connecting rod 1043 assembly, the both ends of spring 1042 respectively with the casing stiff end, the one end of connecting rod 1043 is connected, the other end of connecting rod 1043 and the outer wall fixed connection of dead lever 1031.
The spring 1042 and the connecting rod 1043 may be provided with one or more. In this embodiment, two springs 1042 and two connecting rods 1043 are provided.
After the liquid medicine is injected, the injection rod is driven to return to the initial position under the elastic force action of the spring in the rebound assembly, so that the needle head of the injection needle can be pulled out of the subcutaneous tissue of the patient in time, and the pain of the patient and the adverse reaction of the injection part are relieved.
Example 3.
A full needle-insertion hypodermic syringe is otherwise the same as that of embodiment 1 or 2, except that, as shown in fig. 4, the end of the cartridge 101 that is not covered by the outer housing 1041 is defined as a front end tube, and the outer wall surface of the front end tube of the cartridge 101 is at the same level as the outer housing 1041.
Through the outer wall of a front end section of thick bamboo in the cartridge case with the shell body is in same horizontal position for cartridge case and resilience subassembly become a body structure, when using, make the user hold between the fingers more convenient, be unlikely to because the structure of step form makes the user be difficult to hold between the fingers when injecting for the patient.
Example 4.
A full needle-insertion type hypodermic syringe has the same structure as that of any one of embodiments 1 to 3, except that, as shown in FIG. 5, a stopper tube 105 is further provided, and the end of the cartridge 101 not fitted with the outer housing 1041 is defined as a front end tube, and the outer wall surface of the stopper tube 105 is fixed to the outer wall surface of the front end tube. The limiting cylinder 105 is a transparent limiting cylinder.
The inner wall surface of the limiting cylinder 105 is provided with a mounting groove 1051, and the mounting groove 1051 is movably matched with the outer wall surface of the injection cylinder 100 in a rotating way; a sliding rail 1011 is fixed on the outer wall surface of the front end cylinder, and the sliding rail 1011 is assembled in the mounting groove 1051; the length of displacement of the stop barrel 105 is equal to the length of the needle.
The length of the limiting cylinder 105 is LLimit ofThe length of the front end cylinder is LMedicine，LLimit of≤LMedicine。
The mounting groove 1051 and the sliding rail 1011 may be provided with one or more grooves, respectively.
Through setting up a spacing section of thick bamboo, contact the one end terminal surface of a spacing section of thick bamboo with the human injection position of patient when using, guarantee that the direction of inserting the needle is for inserting the needle perpendicularly, stabilize the direction of inserting the needle simultaneously through mounting groove and sliding rail and also make the inertial force effect that utilizes to press when injecting the liquid medicine simultaneously, can make the syringe needle get into the subcutaneous tissue at injection position rapidly.
It should be finally noted that the above embodiments are only intended to illustrate the technical solutions of the present invention and not to limit the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention.
Claims (9)
1. A full needle-insertion type hypodermic syringe is characterized in that: the injection device is provided with an injection tube and an injection needle, wherein the injection needle is arranged at one end of the injection tube; the length of the needle head of the injection needle is LNeedle，3mm≤LNeedleLess than or equal to 10 mm; the injection tube is provided with a medicine cylinder, an injection push rod and a limiting injection connecting part, one end of the medicine cylinder is connected with one end of the injection needle, one end of the injection push rod is defined as a deep-entering end, the other end of the injection push rod is defined as a pressing end, the injection push rod is assembled in a liquid medicine cavity of the medicine cylinder from the deep-entering end, and one end of the limiting injection connecting part is fixedly connected with the pressing end.
2. The full needle entry hypodermic syringe of claim 1, wherein:
the limiting injection connecting part is provided with a fixing rod and a spiral rotating rod, one end of the fixing rod is fixedly connected with the pressing end, and the inner wall surface of the spiral rotating rod is fixedly connected with the outer wall surface of the fixing rod in a threaded screwing mode.
3. The full needle entry hypodermic syringe of claim 2, wherein: and the outer wall surface of the fixed rod and the inner wall surface of the spiral rotating rod are respectively provided with threads.
4. The full needle entry hypodermic syringe of claim 3, wherein: the injection tube is further provided with a rebound assembly, and the rebound assembly is fixedly connected with the outer wall surface of the fixing rod and the cartridge case respectively.
5. The full needle entry hypodermic syringe of claim 4, wherein: the resilience assembly is provided with an outer shell, a spring and a connecting rod, one end of the cartridge case connected with the injection needle is defined as an injection end part, the other end of the cartridge case is defined as an assembly end, and the outer shell is provided with an L-shaped assembly end with the sleeve lengthShellBe fixed in the outer wall of cartridge case, with the shell body cover is established the one end tip of cartridge case is the casing stiff end, the casing stiff end with the outer wall fixed connection of cartridge case is defined as rear end parcel portion with the one end of establishing by the shell body cover in the cartridge case, the outer wall of rear end parcel portion of cartridge case with be formed with the chamber of rebounding that is used for spring, connecting rod assembly between the internal face of shell body, the both ends of spring respectively with the one end of casing stiff end, connecting rod is connected, the other end of connecting rod with the outer wall fixed connection of dead lever.
6. The full needle entry hypodermic syringe of claim 5, wherein: the outer wall surface of the front end barrel in the medicine barrel and the outer shell body are in the same horizontal position.
7. The full needle entry hypodermic syringe of claim 6, wherein: and a piston is fixed at the deep end of the injection push rod.
8. The full needle entry hypodermic syringe of claim 7, wherein: one or more springs and connecting rods are arranged;
said LNeedleAt least one of 4mm, 6mm or 8 mm.
9. The full needle entry hypodermic syringe of claim 8, wherein: the drug cartridge is characterized by also comprising a limiting cylinder, wherein one end of the drug cartridge, which is not sleeved by the outer shell, is defined as a front-end cylinder, and the outer wall surface of the limiting cylinder is fixed on the outer wall surface of the front-end cylinder;
the inner wall surface of the limiting cylinder is provided with a mounting groove, and the mounting groove is movably matched with the outer wall surface of the injection cylinder in a rotating way; a sliding rail is fixed on the outer wall surface of the front end cylinder and assembled in the mounting groove;
the length of the limiting cylinder is LLimit ofThe length of the front end cylinder is LMedicine，LLimit of≤LMedicine；
The mounting groove and the sliding rail are respectively provided with one or more than one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020729515.6U CN213432293U (en) | 2020-05-05 | 2020-05-05 | Full needle insertion type hypodermic syringe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020729515.6U CN213432293U (en) | 2020-05-05 | 2020-05-05 | Full needle insertion type hypodermic syringe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213432293U true CN213432293U (en) | 2021-06-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020729515.6U Active CN213432293U (en) | 2020-05-05 | 2020-05-05 | Full needle insertion type hypodermic syringe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213432293U (en) |
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2020
- 2020-05-05 CN CN202020729515.6U patent/CN213432293U/en active Active
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