Syringe capable of adjusting needle inserting depth
By designing an adjustable telescopic rod and elastic sheet structure in the syringe, the problem that traditional syringes are difficult to control the depth of the needle is solved, and the accuracy and safety of needle insertion is achieved, avoiding the harm of excessive needle insertion to the patient. and the problem of slow absorption of medicine.
Patent Information
- Application Number
- CN202420478282.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-12
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2034-03-12
AI Technical Summary
Traditional syringes are difficult to accurately control the depth of the needle, which may cause damage to the patient due to the needle being pierced too deeply, and the liquid is absorbed slowly and may cause edema.
A syringe including a syringe, a piston, a push rod, a guide member, a telescopic rod and an elastic sheet is designed. By adjusting the extension distance of the telescopic rod and the slot matching of the elastic sheet, the vertical insertion and depth adjustment of the needle is achieved. Make sure the needle remains perpendicular to the skin surface and avoid too deep piercing.
Accurate control of the depth of the needle inlet of the syringe is achieved, effectively preventing the needle from being pierced too deep to cause harm to the patient, and improving the efficiency of the liquid absorption.
Smart Images
Figure CN222286107U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of syringes, in particular to a syringe capable of adjusting the needle insertion depth. Background Art
[0002] When injecting into the human body through a syringe, there are usually certain requirements for the depth of the needle, and the depth of the needle should be controlled within a certain distance. If the needle is inserted too deeply into the skin, it may cause great pain to the patient at the very least, or even break the needle or damage the subcutaneous nerves at the worst; if the needle is inserted too deep into the skin, it may easily lead to slow absorption of the drug solution and easily form edema at the injection site.
[0003] When traditional medical staff perform acupuncture on patients, the depth of the needle insertion mainly depends on the medical staff's experience and techniques, and they are unable to accurately control the depth of the needle insertion. In addition, during the operation, it is inevitable that the needle will be inserted too hard, causing the needle to be inserted too deeply, which can easily cause certain injuries to the patient. Utility Model Content
[0004] The utility model aims to solve the deficiencies in the prior art and provide a syringe capable of adjusting the needle insertion depth.
[0005] The purpose of the utility model is achieved through the following technical scheme: a syringe capable of adjusting the depth of needle insertion, comprising a syringe, a piston is arranged in the syringe, a piston push rod is connected to the piston, a needle is arranged at one end of the syringe, a guide component is arranged on the outer side of the syringe, a guide groove is arranged on the guide component, a telescopic rod is slidably connected in the guide groove, and a contact pad is arranged at one end of the telescopic rod; a plurality of clamping grooves are arranged on the telescopic rod, and the clamping grooves are arranged in sequence along the axial direction of the telescopic rod; a connecting part is arranged on the outer side of the guide part, an elastic sheet is arranged on the connecting part, one end of the elastic sheet is connected to the connecting part, and a clamping block matched with the clamping groove on the telescopic rod is arranged on the elastic sheet; a through groove for allowing the clamping block to pass through is provided on the guide part.
[0006] When performing an injection, the utility model first adjusts the extension distance of the telescopic rod, the vertical distance between the contact pad and the needle tip is consistent with the needle insertion depth, and after the liquid medicine is drawn into the syringe, the needle is inserted into the injection site on the human skin. During the injection process, the needle should be kept vertical to the skin surface as much as possible until the contact pad contacts the skin, the needle stops inserting, and then the liquid medicine is injected by pushing the piston push rod. After the liquid medicine injection is completed, the needle is pulled out of the patient's skin. Among them, when adjusting the extension distance of the telescopic rod, first push outward the end of the elastic sheet away from the connecting part so that the block on the elastic sheet is disengaged from the slot on the telescopic rod, then slide the telescopic rod and adjust the telescopic rod to the desired position, and finally release the elastic sheet, the elastic sheet is reset under its own elastic action, and the block on the elastic sheet is inserted into the corresponding slot. The utility model can accurately control the insertion depth of the syringe, and can effectively prevent the needle from being inserted too deeply and causing harm to the patient.
[0007] Preferably, the contact pad is made of silica gel, which is soft and has good skin affinity, and is more comfortable when in contact with the skin.
[0008] Preferably, the cross-section of the card slot is a right-angled trapezoid, and the card slot includes a card slot bottom, a first card slot side surface and a second card slot side surface, the first card slot side surface is perpendicular to the card slot bottom surface, and the angle between the second card slot side surface and the card slot bottom surface is 150 degrees.
[0009] Preferably, the elastic sheet is made of spring steel.
[0010] Preferably, the elastic sheet is provided with a toggle portion at one end away from the connection portion. The toggle portion and the elastic sheet are an integrated structure, and the toggle portion is formed by stamping and bending the end of the elastic sheet; the toggle portion is provided to facilitate the operator to toggle the end of the elastic sheet.
[0011] Preferably, a scale is provided on one side of the telescopic rod, and the scale is arranged along the axial direction of the telescopic rod, and the scale is used to display the vertical distance between the needle tip and the contact pad. The scale value aligned with the end face of the syringe close to the needle end is the vertical distance between the needle tip and the contact pad. By setting the scale on the telescopic rod, it is convenient for the operator to accurately adjust the insertion depth of the needle.
[0012] Preferably, the cross section of the block is rectangular.
[0013] Preferably, the connecting portion is provided with a slot, and one end of the elastic sheet is inserted into and fixed in the slot.
[0014] The beneficial effect of the utility model is that the utility model can accurately control the needle insertion depth of the syringe, and can effectively prevent the needle from being inserted too deeply and causing harm to the patient. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a structural schematic diagram of one direction of the utility model.
[0016] Figure 2 It is a structural schematic diagram of another direction of the utility model.
[0017] Figure 3 It is a front view of the utility model.
[0018] Figure 4 for Figure 3 Enlarged view of part A in the middle.
[0019] Figure 5 for Figure 3 Enlarged view of part B in the middle.
[0020] In the figure: 1, syringe, 2, piston push rod, 3, needle, 4, guide component, 5, telescopic rod, 6, slot, 7, contact pad, 8, elastic sheet, 9, scale, 11, toggle part, 12, connecting part, 13, block, 15, slot bottom, 16, first slot side, 17, second slot side, 18, through slot. DETAILED DESCRIPTION
[0021] 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 belong to the scope of protection of the utility model.
[0022] like Figures 1 to 5 As shown, a syringe capable of adjusting the depth of needle insertion comprises a syringe 1, a piston is arranged in the syringe 1, and a piston push rod 2 is connected to the piston. A needle 3 is arranged at one end of the syringe 1, and a guide component 4 is arranged on the outer side of the syringe 1, and the guide component 4 is arranged along the axial direction of the syringe 1. A guide groove is arranged on the guide component 4, and a telescopic rod 5 is slidably connected in the guide groove, and a contact pad 7 is arranged at one end of the telescopic rod 5.
[0023] In this embodiment, the contact pad 7 is made of silica gel, which is soft and has good skin affinity, and is more comfortable when in contact with the skin.
[0024] The telescopic rod 5 is provided with a plurality of slots 6, which are arranged in sequence along the axial direction of the telescopic rod 5. The cross section of the slot 6 is a right-angled trapezoid, and the slot 6 includes a slot bottom surface 15, a first slot side surface 16, and a second slot side surface 17. The first slot side surface 16 is perpendicular to the slot bottom surface 15, and the angle between the second slot side surface 17 and the slot bottom surface 15 is 150 degrees.
[0025] A connecting portion 12 is provided on the outer side of the guide component 4, and an elastic sheet 8 is provided on the connecting portion 12. One end of the elastic sheet 8 is connected to the connecting portion 12, and a clamping block 13 is provided on the elastic sheet 8 to match the clamping slot 6 on the telescopic rod 5. A through slot 18 is provided on the guide component 4 for the clamping block 13 to pass through.
[0026] The cross section of the block 13 is rectangular. A slot is provided on the connecting portion 12, and one end of the elastic sheet 8 is inserted into and fixed in the slot. In this embodiment, the elastic sheet 8 is made of spring steel. It has good elasticity and can bend after being subjected to force. After the external force disappears, the elastic sheet 8 returns to its initial state.
[0027] The elastic sheet 8 is provided with a toggle portion 11 at one end away from the connection portion 12. The toggle portion 11 and the elastic sheet 8 are an integral structure, and the toggle portion 11 is formed by stamping and bending the end of the elastic sheet 8; the toggle portion 11 is provided to facilitate the operator to toggle the end of the elastic sheet 8.
[0028] A scale 9 is provided on one side of the telescopic rod 5, and the scale 9 is arranged along the axial direction of the telescopic rod 5. The scale 9 is used to display the vertical distance between the needle tip of the needle 3 and the contact pad 7. The value of the scale 9 aligned with the end face of the syringe 1 close to the needle 3 is the vertical distance between the needle tip and the contact pad 7. By setting the scale 9 on the telescopic rod 5, it is convenient for the operator to accurately adjust the insertion depth of the needle 3.
[0029] When performing injection, the utility model first adjusts the extension distance of the telescopic rod 5, the vertical distance between the contact pad 7 and the needle tip is consistent with the needle insertion depth, after the liquid medicine is drawn into the syringe 1, the needle 3 is inserted into the injection site on the human skin, during the injection process, the needle 3 should be kept vertical to the skin surface as much as possible until the contact pad 7 contacts the skin, the needle 3 stops inserting, and then the liquid medicine is injected by pushing the piston push rod, and the needle 3 is pulled out from the patient's skin after the liquid medicine injection is completed. Among them, when adjusting the extension distance of the telescopic rod 5, first push the end of the elastic sheet 8 away from the connecting part 12 outward to disengage the block 13 on the elastic sheet 8 from the slot 6 on the telescopic rod 5, then slide the telescopic rod 5 and adjust the telescopic rod 5 to the desired position, and finally release the elastic sheet 8, the elastic sheet 8 is reset under its own elastic action, and the block 13 on the elastic sheet 8 is inserted into the corresponding slot 6. The utility model can accurately control the needle insertion depth of the syringe, and can effectively prevent the needle 3 from being inserted too deeply and causing harm to the patient.
[0030] The present utility model is not limited to the above-mentioned optimal implementation mode. Anyone can derive other various forms of products under the inspiration of the present utility model. However, no matter what changes are made in the shape or structure, all those having the same or similar technical solutions as the present application fall within the protection scope of the present utility model.
Claims
1. A syringe capable of adjusting the depth of needle insertion, characterized in that: It comprises a syringe, a piston is arranged in the syringe, a piston push rod is connected to the piston, a needle is arranged at one end of the syringe, a guide component is arranged on the outer side of the syringe, a guide groove is arranged on the guide component, a telescopic rod is slidably connected in the guide groove, a contact pad is arranged at one end of the telescopic rod; a plurality of clamping grooves are arranged on the telescopic rod, and the clamping grooves are arranged in sequence along the axial direction of the telescopic rod; a connecting part is arranged on the outer side of the guide part, an elastic sheet is arranged on the connecting part, one end of the elastic sheet is connected to the connecting part, and a clamping block matched with the clamping groove on the telescopic rod is arranged on the elastic sheet; and a through groove for allowing the clamping block to pass through is provided on the guide component.
2. The syringe with adjustable needle insertion depth according to claim 1, characterized in that: The contact pad is made of silicone.
3. The syringe with adjustable needle insertion depth according to claim 1, characterized in that: The cross section of the card slot is a right-angled trapezoid, and the card slot includes a card slot bottom surface, a first card slot side surface and a second card slot side surface. The first card slot side surface is perpendicular to the card slot bottom surface, and the angle between the second card slot side surface and the card slot bottom surface is 150 degrees.
4. The syringe capable of adjusting the needle insertion depth according to claim 1, characterized in that: The elastic sheet is made of spring steel.
5. The syringe capable of adjusting the needle insertion depth according to claim 1, characterized in that: A toggle portion is provided at one end of the elastic sheet away from the connecting portion.
6. The syringe capable of adjusting the needle insertion depth according to claim 1, characterized in that: A scale is provided on one side of the telescopic rod, and the scale is arranged along the axial direction of the telescopic rod. The scale is used to display the vertical distance between the needle tip of the needle and the contact pad.
7. The syringe capable of adjusting the needle insertion depth according to claim 1, characterized in that: The cross section of the card block is rectangular.
8. The syringe capable of adjusting the needle insertion depth according to claim 1, characterized in that: The connecting part is provided with a slot, and one end of the elastic sheet is inserted into and fixed in the slot.