A kind of sterile injection needle with precise adjustment of ejector pin
By designing a needle insertion depth adjustment mechanism in a sterile injection needle, the problem of the inability to accurately control the needle depth is solved, and the accuracy of the needle depth is achieved, which improves the comfort and safety of the injection process.
Patent Information
- Application Number
- CN202420319288.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-21
- Publication Date
- 2025-04-01
- Estimated Expiration
- 2034-02-21
AI Technical Summary
When using sterile injection needles, the depth of the needle insertion depends entirely on the experience of medical staff and cannot be accurately controlled, resulting in too deep or too short the needle depth, causing discomfort in the patient.
A thimble-type precisely adjusted sterile injection needle is designed, and the needle insertion depth adjustment mechanism is adopted, including a fixing frame, a rotating thread frame, a tape measure, a magnetic sliding block and a sealing plug. The precise adjustment of the needle depth is achieved through the cooperation of the rotating thread frame and a tape measure.
By accurately adjusting the insertion depth of the needle, the patient's discomfort caused by discomfort in the depth of the needle is avoided, and the comfort and safety of the injection process are improved.
Smart Images
Figure CN222693833U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of an ejector-type precisely-adjustable sterile injection needle, in particular to an ejector-type precisely-adjustable sterile injection needle. Background Art
[0002] The sterile injection needle consists of a sheath, a needle tube, and a needle seat. The sheath and needle seat of this product are made of polypropylene, the needle tube is made of SUS304 stainless steel, and the needle tube lubricant is polydimethylsiloxane. This product is sterilized with ethylene oxide and is for one-time use only. This product is suitable for human injection or extraction of various liquid medicines. The syringe jacket material is medical grade high-transparency polypropylene material, which is conducive to observing the liquid medicine scale during clinical use. The surface of the syringe is siliconized with imported medical grade siliconized liquid. The syringe has good sliding performance, which reduces the intensity of nurses extracting liquid medicine. At the same time, the siliconized liquid has good biocompatibility with the liquid medicine.
[0003] In the prior art, when using a sterile injection needle, the depth of needle insertion is completely determined by the experience of medical staff and cannot be fundamentally controlled. If the depth of the needle is too deep or too short, some patients will feel extremely uncomfortable. For this reason, we propose a precisely adjustable sterile injection needle with a thimble-type needle. Utility Model Content
[0004] The purpose of the utility model is to provide a precisely adjustable thimble-type sterile injection needle to solve the problem raised in the above-mentioned background technology that when using a sterile injection needle, the insertion depth of the needle tip is completely determined by the experience of medical staff and cannot be controlled from the root, and the depth of the needle tip is too deep or too short, which will make some patients feel extremely uncomfortable.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a thimble-type precisely adjustable sterile injection needle, comprising a soft needle tube and a needle insertion depth adjustment mechanism, the needle insertion depth adjustment mechanism comprising a fixed frame, the inner side of the fixed frame is movably connected to a rotating threaded frame through a plug-in tube, the outer sides of the fixed frame and the rotating threaded frame are movably connected to a tape measure through an iron groove and a magnetic sliding block, and the rotating threaded frame is movably connected to a sealing plug through an adjusting cylinder.
[0006] As a preferred solution, an end cap is slidably connected to the inside of the soft needle tube, and a needle is inserted into the bottom of the soft needle tube.
[0007] As a preferred solution, the fixing frame is fixedly mounted on the outer wall of the plug tube near the upper end, the plug tube is plugged into the bottom outer wall of the soft needle tube, and the rotating threaded frame is rotatably connected to the outer wall of the plug tube.
[0008] As a preferred solution, the iron groove is opened on the outer wall of the fixed frame and the rotating threaded frame, the magnetic sliding block is fixedly installed at both ends of the tape measure, the magnetic sliding block is slidably connected to the inside of the iron groove, and the sealing plug is inserted into the bottom of the adjusting cylinder.
[0009] As a preferred embodiment, a sterile packaging mechanism is arranged on the outside of the soft needle tube, and the sterile packaging mechanism includes a sterile base, and an adaptor groove is opened inside the sterile base, and the soft needle tube, end cap and needle are all located in the adaptor groove.
[0010] As a preferred solution, a sealant is fixedly installed on the upper end of the sterile base, and a sterile sealing bag is fixedly installed on the upper end of the sealant, and the sterile sealing bag is made of a transparent material.
[0011] Technical effects and advantages of the utility model:
[0012] 1. Through the set fixing frame, tape measure, magnetic sliding block, rotating threaded frame, iron groove, plug-in tube, adjusting cylinder and sealing plug, the rotating threaded frame is rotated on the plug-in tube, so that the adjusting cylinder moves upward along the outer wall of the plug-in tube, so that the needle is exposed to a corresponding length, and the tape measure is used for inspection. The iron groove and magnetic sliding block ensure that the tape measure can always be vertical and will not be entangled, so as to facilitate the adjustment of the needle insertion depth of the sterile injection needle and avoid discomfort to some patients due to the depth of needle insertion.
[0013] 2. By providing a sterile base, an adaptor groove, a sterile sealing package and a sealant, the entire injection needle can be sealed in the sterile base, so that the medicine inside the injection needle will not contact bacteria, thereby improving the safety of injection. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.
[0015] Figure 2 It is an exploded view of the utility model.
[0016] Figure 3 It is an exploded view of the needle insertion depth adjustment mechanism of the utility model.
[0017] Figure 4 It is a partial structural exploded view of the needle insertion depth adjustment mechanism of the utility model.
[0018] Figure 5 It is an exploded view of the aseptic packaging mechanism of the utility model.
[0019] In the figure: 1. soft needle tube; 2. end cap; 3. needle; 4. needle insertion depth adjustment mechanism; 41. fixing frame; 42. measuring tape; 43. magnetic sliding block; 44. rotating threaded frame; 45. iron groove; 46. plug-in tube; 47. adjusting cylinder; 48. sealing plug; 5. sterile packaging mechanism; 51. sterile base; 52. adapter groove; 53. sterile sealing bag; 54. sealant. DETAILED DESCRIPTION
[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0021] The utility model provides Figure 1-5 The illustrated embodiment of a precise adjustment sterile injection needle of the ejector type comprises a soft needle tube 1 and a needle insertion depth adjustment mechanism 4, wherein the needle insertion depth adjustment mechanism 4 comprises a fixed frame 41, wherein the inner side of the fixed frame 41 is movably connected to a rotating threaded frame 44 via a plug-in tube 46, wherein the outer sides of the fixed frame 41 and the rotating threaded frame 44 are movably connected to a tape measure 42 via an iron groove 45 and a magnetic sliding block 43, wherein the rotating threaded frame 44 is movably connected to a sealing plug 48 via an adjustment cylinder 47, wherein the fixed frame 41 is fixedly mounted on the outer wall of the plug-in tube 46 near the upper end, wherein the plug-in tube 46 is plugged into the bottom outer wall of the soft needle tube 1, wherein the rotating threaded frame 44 is rotatably connected to the plug-in tube 4 6, an iron groove 45 is opened on the outer wall of the fixed frame 41 and the rotating threaded frame 44, a magnetic sliding block 43 is fixedly installed at both ends of the tape measure 42, the magnetic sliding block 43 is slidably connected to the inside of the iron groove 45, and the sealing plug 48 is inserted into the bottom of the adjusting cylinder 47. When adjusting the insertion depth of the injection needle, first pull out the sealing plug 48 from the bottom of the adjusting cylinder 47, rotate the rotating threaded frame 44 upward along the plug tube 46, so that the adjusting cylinder 47 moves upward along the outer wall of the plug tube 46, and the tape measure 42 slides in the iron groove 45 synchronously through the magnetic sliding block 43, and the exposed length of the needle 3 is determined by checking the length of the tape measure 42.
[0022] In this embodiment, a sterile packaging mechanism 5 is provided on the outside of the soft needle tube 1, and the sterile packaging mechanism 5 includes a sterile base 51. An adaptor groove 52 is provided inside the sterile base 51. The soft needle tube 1, the end cap 2 and the needle 3 are all located in the adaptor groove 52. A sealant 54 is fixedly installed on the upper end of the sterile base 51, and a sterile sealing package 53 is fixedly installed on the upper end of the sealant 54. The sterile sealing package 53 is made of transparent material. When using the injection needle, the sterile sealing package 53 is torn off the sealant 54 in a sterile environment, and then the syringe is taken out of the adaptor groove 52 for use.
[0023] In this embodiment, an end cap 2 is slidably connected to the inside of the soft needle tube 1, a needle 3 is inserted into the bottom of the soft needle tube 1, and the end cap 2, the needle 3 and the soft needle tube 1 form an injection needle.
[0024] Working principle of the utility model: the utility model is a thimble-type precisely adjusted sterile injection needle. When using the injection needle, the sterile sealing package 53 is torn off the sealant 54 in a sterile environment, and then the syringe is taken out of the adapter slot 52 for use.
[0025] When adjusting the insertion depth of the injection needle, first pull out the sealing plug 48 from the bottom of the adjusting cylinder 47, rotate the rotating threaded frame 44 upward along the plug tube 46, so that the adjusting cylinder 47 moves upward along the outer wall of the plug tube 46, and the measuring tape 42 slides synchronously in the iron groove 45 through the magnetic sliding block 43. The exposed length of the needle 3 is determined by checking the length of the measuring tape 42.
[0026] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A precise adjustment sterile injection needle of ejector type, comprising a soft needle tube (1) and a needle insertion depth adjustment mechanism (4), characterized in that: The needle insertion depth adjustment mechanism (4) comprises a fixed frame (41), the inner side of the fixed frame (41) is movably connected to a rotating thread frame (44) via a plug-in tube (46), the outer sides of the fixed frame (41) and the rotating thread frame (44) are movably connected to a measuring tape (42) via an iron groove (45) and a magnetic sliding block (43), and the rotating thread frame (44) is movably connected to a sealing plug (48) via an adjustment tube (47).
2. A thimble-type precision-adjustable sterile injection needle according to claim 1, characterized in that: An end cap (2) is slidably connected to the interior of the soft needle tube (1), and a needle head (3) is inserted into the bottom of the soft needle tube (1).
3. A thimble-type precision-adjustable sterile injection needle according to claim 2, characterized in that: The fixing frame (41) is fixedly mounted on the outer wall of the insertion tube (46) near the upper end; the insertion tube (46) is plugged into the bottom outer wall of the soft needle tube (1); and the rotating threaded frame (44) is rotatably connected to the outer wall of the insertion tube (46).
4. A thimble-type precision-adjustable sterile injection needle according to claim 3, characterized in that: The iron groove (45) is formed on the outer walls of the fixed frame (41) and the rotating threaded frame (44); the magnetic sliding blocks (43) are fixedly mounted on both ends of the measuring tape (42); the magnetic sliding blocks (43) are slidably connected to the inside of the iron groove (45); and the sealing plug (48) is inserted into the bottom of the adjusting cylinder (47).
5. The ejector-type precision-adjustable sterile injection needle according to claim 2, characterized in that: A sterile packaging mechanism (5) is arranged on the outside of the soft needle tube (1), and the sterile packaging mechanism (5) comprises a sterile base (51). An adapting groove (52) is provided inside the sterile base (51), and the soft needle tube (1), the end cap (2) and the needle (3) are all located in the adapting groove (52).
6. The ejector-type precision-adjustable sterile injection needle according to claim 5, characterized in that: A sealant (54) is fixedly mounted on the upper end of the sterile base (51), and a sterile sealing bag (53) is fixedly mounted on the upper end of the sealant (54), wherein the sterile sealing bag (53) is made of a transparent material.