CN216777673U - Empty needle convenient for assembling and disassembling needle point - Google Patents
Empty needle convenient for assembling and disassembling needle point Download PDFInfo
- Publication number
- CN216777673U CN216777673U CN202122823754.5U CN202122823754U CN216777673U CN 216777673 U CN216777673 U CN 216777673U CN 202122823754 U CN202122823754 U CN 202122823754U CN 216777673 U CN216777673 U CN 216777673U
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- Prior art keywords
- needle
- nipple
- cylinder
- empty
- close
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- 210000002445 nipple Anatomy 0.000 claims abstract description 45
- 239000007788 liquid Substances 0.000 description 7
- 239000003814 drug Substances 0.000 description 5
- 230000000474 nursing effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model relates to an empty needle, and provides an empty needle with a needle point convenient to disassemble and assemble, which comprises a needle cylinder, a nipple, a needle head and a fixing device, wherein the fixing device is arranged at one end of the needle cylinder, which is close to the nipple; the nipple is arranged close to the edge of the needle cylinder; the needle head comprises a needle stem detachably connected with the nipple and a needle point fixedly connected with the needle stem; the fixing device comprises an annular rotating plate which is rotatably connected with the outer wall of the needle cylinder and an arc-shaped clamping plate which is fixedly connected with the inner wall of the rotating plate; the clamping plate is used for clamping the needle stalk; the snap-gauge is slidably arranged on the end surface of the needle cylinder. The empty needle with the needle point convenient to disassemble and assemble can conveniently disassemble and assemble the needle head and stably fix the needle head on the needle cylinder.
Description
Technical Field
The utility model relates to the technical field of hollow needles, in particular to a hollow needle with a needle point convenient to disassemble and assemble.
Background
The advent of syringes (hollow needles) is an epoch-making revolution in the field of medical devices. This process of drawing, injecting gas or liquid with a needle is called injection. The injector consists of a syringe with a small hole at the front end and a matched piston core rod, and is used for injecting a small amount of liquid or extracting the liquid or the liquid from the inaccessible area by other methods, wherein the liquid or gas is sucked from the small hole at the front end of the syringe when the core rod is pulled out, and the liquid or gas is extruded when the core rod is pushed in.
The empty needle is also used for dispensing medicines sometimes, and mainly injects liquid medicine into a container containing powder medicine, and sucks the medicine after the medicine is uniformly mixed, so that the injector needs to be pushed forcefully in the process, and because the needle head of the injector is directly sleeved on the nipple of the needle cylinder, the needle head can be injected out when the pressure inside the needle cylinder is high, and certain danger is caused. Therefore, in order to fix and stabilize the needle, the nipple is usually forcibly inserted into the needle stem of the needle, but the needle is very troublesome to take, the needle needs to be taken down with great force, and the needle may prick a nursing staff at the moment, so that certain risks are caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an empty needle with a needle point convenient to disassemble, which can conveniently disassemble and assemble a needle head and stably fix the needle head on a needle cylinder.
The embodiment of the utility model is realized by the following technical scheme: the empty needle convenient for assembling and disassembling the needle point comprises a needle cylinder, a nipple, a needle head and a fixing device, wherein the fixing device is arranged at one end of the needle cylinder, which is close to the nipple; the nipple is arranged close to the edge of the needle cylinder; the needle head comprises a needle stem detachably connected with the nipple and a needle point fixedly connected with the needle stem; the fixing device comprises an annular rotating plate which is rotatably connected with the outer wall of the needle cylinder and an arc-shaped clamping plate which is fixedly connected with the inner wall of the rotating plate; the clamping plate is used for clamping the needle stalk; the clamping plate is arranged on the end face of the needle cylinder in a sliding mode.
Furthermore, one end of the needle stem close to the needle cylinder is provided with an annular snap ring; the shape of the snap ring is conical; the diameter of one end of the snap ring close to the needle cylinder is larger than that of the other end of the snap ring.
Furthermore, one side of the clamping plate, which is close to the needle cylinder, is in a shape which is attached to the clamping ring.
Furthermore, an annular limiting plate is arranged on the side wall of one end, close to the nipple, of the needle cylinder; the inner side wall of the rotating plate is provided with an annular limiting groove; the limiting plate is arranged in the limiting groove in a sliding mode.
Furthermore, the outer side of the limiting plate is provided with first anti-slip lines, and the inner wall of the limiting groove is provided with second anti-slip lines.
Further, still include the connecting rod, connecting rod one end with commentaries on classics inboard wall fixed connection, the other end with cardboard outer wall fixed connection.
Further, the nipple is conical; the diameter of one end of the nipple, which is far away from the needle cylinder, is smaller than that of the other end; the inner wall of the needle stalk is in a shape matched with the nipple.
The technical scheme of the embodiment of the utility model at least has the following advantages and beneficial effects: according to the empty needle with the conveniently-disassembled needle tip, the needle stalk on the needle head is inserted into the concave nipple, the rotating plate is directly rotated, the clamping plate is rotated to the needle stalk through the rotating plate, the needle stalk is clamped, the needle stalk is fixed to the nipple, and therefore the nipple is not required to be tightly pressed inside the needle stalk, and the needle tip can be stably fixed on the nipple. When the needle head needs to be taken down, the rotating plate only needs to rotate reversely, the clamping plate is separated from the needle stem, the needle head can be taken down easily at the moment, the needle head does not need to be pulled out forcefully, the risk of being pricked by the needle head when the needle head is pulled out can be reduced, and the safety of nursing personnel is further ensured.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic structural view of an empty needle with a needle tip convenient to disassemble and assemble according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a needle head portion of an empty needle with a needle tip convenient to mount and dismount according to an embodiment of the present invention;
FIG. 3 is a schematic structural view of a needle portion of an empty needle with a needle tip convenient to disassemble and assemble according to an embodiment of the present invention;
FIG. 4 is a partial schematic view of the interior of the state of FIG. 2;
FIG. 5 is a schematic structural view of a needle cylinder portion of an empty needle with a needle tip convenient to mount and dismount according to an embodiment of the present invention;
fig. 6 is a schematic structural view of a fixing device part of an empty needle convenient for assembling and disassembling a needle point according to an embodiment of the utility model.
Icon: 10-syringe, 11-nipple, 12-spacing ring, 20-fixing device, 21-rotating plate, 22-clamping plate, 23-connecting rod, 30-needle, 31-needle stem, 32-needle point and 33-clamping ring.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship which is usually placed when the product of this application is used, the description is merely for convenience and simplicity of description, and it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be construed broadly and may include, for example, a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Examples
Referring to fig. 1-6, the empty needle with a needle tip 32 convenient to be detached in this embodiment includes a needle cylinder 10, a nipple 11, a needle 30, and a fixing device 20 disposed at one end of the needle cylinder 10 near the nipple 11; the nipple 11 is arranged close to the edge of the needle cylinder 10; the needle head 30 comprises a needle stem 31 detachably connected with the nipple 11 and a needle point 32 fixedly connected with the needle stem 31; the fixing device 20 comprises an annular rotating plate 21 which is rotatably connected with the outer wall of the needle cylinder 10 and an arc-shaped clamping plate 22 which is fixedly connected with the inner wall of the rotating plate 21; the clamping plate 22 is used for clamping the needle stem 31; the catch plate 22 is slidably provided on the end surface of the cylinder 10. Further, after the needle stem 31 of the needle 30 is inserted into the nipple 11, the rotating plate 21 is directly rotated, the catch plate 22 is rotated to the needle stem 31 by the rotating plate 21, and the needle stem 31 is caught to fix the needle stem 31 to the nipple 11, so that the nipple 11 can be stably fixed to the nipple 11 without forcibly pressing the nipple 11 against the inside of the needle stem 31. When the needle head 30 needs to be taken down, only the rotating plate 21 needs to be rotated reversely, the clamping plate 22 is separated from the needle stem 31, the needle head 30 can be taken down easily at the moment, the needle head does not need to be pulled out forcefully, the risk of being pricked by the needle head 30 when the needle head 30 is pulled out can be reduced, and the safety of nursing staff is further ensured.
One end of the needle stem 31 close to the needle cylinder 10 in the embodiment is provided with an annular snap ring 33; the shape of the snap ring 33 is conical; the diameter of the snap ring 33 at one end near the cylinder 10 is larger than the diameter at the other end. The clamping plate 22 is in a shape which is close to one side of the syringe 10 and is jointed with the clamping ring 33. Specifically, when cardboard 22 supports on snap ring 33, can play certain effect of pushing down to snap ring 33 like this, can make needle stalk 31 inseparabler with the laminating of nipple 11, have better sealed effect.
The side wall of the needle cylinder 10 close to one end of the nipple 11 in the embodiment is provided with an annular limiting plate; the inner side wall of the rotating plate 21 is provided with an annular limiting groove; the limiting plate is arranged in the limiting groove in a sliding manner. The limiting plate is provided with first anti-slip lines on the outer side, and second anti-slip lines on the inner wall of the limiting groove. Specifically, the anti-slip threads resemble smaller teeth, such that a smaller force is required to rotate the rotating plate 21 normally, and the rotating plate 21 does not loosen after it is fixed in position. The stable rotation of commentaries on classics board 21 can be guaranteed well in the cooperation of spacing groove and limiting plate.
In this embodiment, still include connecting rod 23, connecting rod 23 one end and the inboard wall fixed connection of commentaries on classics board 21, the other end and cardboard 22 outer wall fixed connection. Specifically, the connecting rod 23 can improve the connection strength between the rotating plate 21 and the chucking plate 22.
The nipple 11 in this embodiment is conical; the diameter of the nipple 11 far away from one end of the needle cylinder 10 is smaller than that of the other end; the inner wall of the needle stalk 31 is in a shape matched with the nipple 11. In particular, this allows better removal of the needle stem 31 from the teat 11.
In summary, in the empty needle of the present embodiment, which facilitates the removal and installation of the needle point 32, after the needle stem 31 of the needle head 30 is inserted into the nipple 11, the rotating plate 21 is directly rotated, the catch plate 22 is rotated to the needle stem 31 by the rotating plate 21, and the needle stem 31 is caught, so that the needle stem 31 is fixed to the nipple 11, and thus the nipple 11 is not forcibly pressed into the needle stem 31, and the needle point 32 can be stably fixed to the nipple 11. When the needle head 30 needs to be taken down, only the rotating plate 21 needs to be rotated reversely, so that the clamping plate 22 is separated from the needle stem 31, the needle head 30 can be taken down easily without being pulled out forcefully, the risk of being punctured by the needle head 30 when the needle head 30 is pulled out can be reduced, and the safety of nursing personnel is further ensured.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides a make things convenient for empty needle of dismouting needle point which characterized in that: comprises a needle cylinder, a nipple, a needle head and a fixing device arranged at one end of the needle cylinder close to the nipple; the nipple is arranged close to the edge of the needle cylinder; the needle head comprises a needle stem detachably connected with the nipple and a needle point fixedly connected with the needle stem;
the fixing device comprises an annular rotating plate which is rotatably connected with the outer wall of the needle cylinder and an arc-shaped clamping plate which is fixedly connected with the inner wall of the rotating plate; the clamping plate is used for clamping the needle stalk; the clamping plate is arranged on the end face of the needle cylinder in a sliding mode.
2. The empty needle convenient for assembling and disassembling the needle point according to claim 1, characterized in that: one end of the needle stem close to the needle cylinder is provided with an annular snap ring; the shape of the clamping ring is conical; the diameter of the snap ring close to one end of the needle cylinder is larger than that of the snap ring close to the other end of the needle cylinder.
3. The empty needle with the conveniently disassembled and assembled needle point as claimed in claim 2, is characterized in that: one side of the clamping plate, which is close to the needle cylinder, is in a shape which is attached to the clamping ring.
4. The empty needle convenient for assembling and disassembling the needle point according to claim 1, characterized in that: an annular limiting plate is arranged on the side wall of one end, close to the nipple, of the needle cylinder; the inner side wall of the rotating plate is provided with an annular limiting groove; the limiting plate is arranged in the limiting groove in a sliding mode.
5. The hollow needle convenient for assembling and disassembling the needle tip according to claim 4, characterized in that: the limiting plate is characterized in that first anti-slip lines are arranged on the outer side of the limiting plate, and second anti-slip lines are arranged on the inner wall of the limiting groove.
6. The empty needle convenient for assembling and disassembling the needle point according to claim 1, characterized in that: still include the connecting rod, connecting rod one end with commentaries on classics inboard wall fixed connection, the other end with cardboard outer wall fixed connection.
7. The empty needle with the conveniently disassembled and assembled needle point as claimed in claim 1, is characterized in that: the nipple is conical; the diameter of one end of the nipple, which is far away from the needle cylinder, is smaller than that of the other end; the inner wall of the needle stalk is in a shape matched with the nipple.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122823754.5U CN216777673U (en) | 2021-11-17 | 2021-11-17 | Empty needle convenient for assembling and disassembling needle point |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122823754.5U CN216777673U (en) | 2021-11-17 | 2021-11-17 | Empty needle convenient for assembling and disassembling needle point |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216777673U true CN216777673U (en) | 2022-06-21 |
Family
ID=82003152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122823754.5U Active CN216777673U (en) | 2021-11-17 | 2021-11-17 | Empty needle convenient for assembling and disassembling needle point |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216777673U (en) |
-
2021
- 2021-11-17 CN CN202122823754.5U patent/CN216777673U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |