Adjustable blood drawing acupuncture depth control device
By designing an adjustable blood-drawing needle device, the problem of the inability to adjust the needle length was solved, enabling precise adjustment of the needle and a sterile state, thereby improving the success rate of blood collection and the quality of blood samples.
Patent Information
- Application Number
- CN202422892473.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-26
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2034-11-26
AI Technical Summary
Existing blood-drawing needle devices cannot adjust the needle length, resulting in needles that are too long or too short, making them unsuitable for patients of different ages and body types, leading to problems such as excessive puncture or failed blood collection.
An adjustable blood-drawing needle insertion depth control device was designed. The rotating block is driven to rotate by the spiral groove and slide rod inside the transparent shell. The adjusting block moves in the spiral groove to adjust the length of the needle. The sealing component prevents contaminants from entering and ensures a sterile state.
It enables precise adjustment of needle length, improves blood collection success rate, reduces patient pain, maintains the sterility of the device, and ensures the quality of blood samples.
Smart Images
Figure CN223715720U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to medical technology field especially, and relates to adjustable blood taking needle puncture depth control device. BACKGROUND
[0002] The blood taking needle in adjustable blood taking needle puncture depth control device is mainly used for puncturing skin, extracting blood sample, helping doctors to obtain patient blood sample, and providing basis for disease diagnosis through inspection and understanding patient health condition, such as blood routine examination can detect whether there is infection, anemia etc., and simultaneously provides research sample for medical scientific research, promotes medical science development, such as research disease pathogenesis, explores new treatment method etc., and all need a large number of blood sample analysis verification.
[0003] Adjustable blood taking needle puncture depth control device operates according to different design principles. Some limit the maximum amplitude of blood taking needle extension to control depth by adjustable limiting device, and some determine puncture depth by changing the position of needle body relative to overall device through special connecting module combination. After triggering, blood is collected by puncturing skin according to set depth, and various blood collection requirements are met.
[0004] In prior art, part of blood taking needle puncture depth device faces many problems when being used, such as children's blood vessels are shallow, too long needle head can cause excessive puncture damage, obese person's blood vessels are deep, too short needle head is difficult to reach blood vessels, leading to blood collection failure, increasing patient pain, and being not conducive to precise blood collection and medical efficiency improvement, so adjustable blood taking needle puncture depth control device is proposed to solve the above problems. UTILITY MODEL CONTENTS
[0005] In order to make up for the above shortcomings, the utility model provides adjustable blood taking needle puncture depth control device, aims at improving the problem that the length of needle head cannot be adjusted in prior art, and different people are difficult to be inserted.
[0006] In order to realize the above purpose, the utility model adopts the following technical scheme:
[0007] Adjustable blood taking needle puncture depth control device, including transparent shell, the inside of the transparent shell is provided with spiral groove, the inside of the transparent shell is slidably connected with slide rod, the top of the slide rod is fixedly connected with push handle, the bottom of the slide rod is fixedly connected with rotating block, the inside of the transparent shell is slidably connected with sliding block, the outside of the slide rod is fixedly connected with rotating block, the outside of the rotating block is fixedly connected with two clamping blocks, the bottom of the sliding block is fixedly connected with blood storage tube, the bottom of the blood storage tube is fixedly connected with needle head, the inside bottom of the transparent shell is fixedly connected with sealing assembly for protecting blood storage tube;
[0008] As a further description of the above technical solutions:
[0009] The sealing assembly comprises a fixed shell, the outer part of the fixed shell is fixedly connected to the inner bottom end of the transparent shell, the inner part of the fixed shell is fixedly connected with a plurality of dampers, the outer part of the damper is sleeved with a spring, and the proximal end of the two dampers is fixedly connected with a sealing block;
[0010] As a further description of the above technical solutions:
[0011] The inner part of the sliding rod is slidably connected with a lifting rod, and the bottom of the lifting rod is fixedly connected with a piston pad;
[0012] As a further description of the above technical solutions:
[0013] The outer part of the two clamping blocks is slidably connected in the inner part of the spiral groove, and the outer part of the rotating block is rotatably connected in the inner part of the sliding block;
[0014] As a further description of the above technical solutions:
[0015] The outer part of the lifting rod is slidably connected in the inner part of the push handle, and the outer part of the lifting rod is slidably connected in the inner part of the blood storage tube;
[0016] As a further description of the above technical solutions:
[0017] The outer part of the piston pad is slidably connected in the inner part of the blood storage tube, and the material of the piston pad is silica gel;
[0018] As a further description of the above technical solutions:
[0019] One end of the spring is fixedly connected to one side of the fixed shell, and the other end of the spring is fixedly connected to one side of the sealing block;
[0020] As a further description of the above technical solutions:
[0021] The proximal end of the two sealing blocks is in contact with the outer part of the blood storage tube, and the material of the sealing block is rubber.
[0022] The utility model has the advantages of the following beneficial effects:
[0023] 1、The utility model discloses, through rotating the sliding rod, the rotatable block fixed outside can be rotated, when the rotatable block is in the process of rotating, two clamping blocks fixed outside can rotate in the inner part of the spiral groove, realize for different age, the patient of the body shape, medical staff can accurate adjustment according to actual conditions, lengthening needle simultaneously can ensure smooth blood sampling, improve blood sampling success rate, also can alleviate the patient's distress.
[0024] 2、The utility model discloses, the damper in fixed shell cooperates with spring, and spring one end connects fixed shell, and the other end connects sealing block, has realized can prevent external bacteria, dust and so on contaminant to enter the inside device, ensure that blood taking needle is in the sterile state, reduce patient infection risk, good sealing can maintain the stability of device internal structure simultaneously, guarantee needle head to stretch out and draw back smoothly. BRIEF DESCRIPTION OF DRAWINGS
[0025] Figure 1 It is the three -dimensional schematic view of adjustable blood taking needle depth control device that the utility model provides;
[0026] Figure 2 It is the structure schematic view of sliding rod of adjustable blood taking needle depth control device that the utility model provides;
[0027] Figure 3 It is the structure schematic view of rotating block of adjustable blood taking needle depth control device that the utility model provides;
[0028] Figure 4 It is the structure schematic view of fixed shell of adjustable blood taking needle depth control device that the utility model provides;
[0029] Figure 5 It is the structure schematic view of sealing block of adjustable blood taking needle depth control device that the utility model provides.
[0030] LEGEND:
[0031] 1, transparent shell;2, spiral groove;3, sliding rod;4, push handle;5, rotating block;6, sliding block;7, rotating block;8, clamping block;9, blood storage tube;10, needle;11, pull rod;12, piston pad;13, fixed shell;14, damper;15, spring;16, sealing block. DETAILED DESCRIPTION
[0032] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.
[0033] REFERENCE Figures 1 to 3The utility model provides a kind of embodiment: adjustable blood extraction needle pricking depth control device, including transparent shell 1, transparent shell 1 is as the external protection structure of device, provides stable support and protection environment for internal component, the inside of transparent shell 1 is provided with helical groove 2, the helical groove 2 in its inside is specific shape and trend, is the key track of realization accurate control, the inside of transparent shell 1 is slidably connected with slide 3, the top of slide 3 is fixedly connected with push handle 4, slide 3 can be smoothly slid in transparent shell 1, the push handle 4 of its top is convenient for medical staff to operate, the bottom of slide 3 is fixedly connected with rotating block 5, when slide 3 can drive rotating block 5 to rotate in the process of rotation, the inside of transparent shell 1 is slidably connected with sliding block 6, and sliding block 6 can move in the inside of transparent shell 1, rotating block 5 is rotatably connected in the inside of sliding block 6, rotating block 5 can rotate in the inside of sliding block 6, the outside of slide 3 is fixedly connected with rotating block 7, the outside of rotating block 7 is fixedly connected with two clamping blocks 8, when slide 3 can drive rotating block 7 to rotate in the process of rotation, so as to achieve that rotating block 7 can drive clamping block 8 to rotate, the outside of two clamping blocks 8 is slidably connected in the inside of helical groove 2, by clamping block 8 can move in the inside of helical groove 2, so as to make slide 3 descend or ascend, the bottom of sliding block 6 is fixedly connected with blood storage tube 9, the bottom of blood storage tube 9 is fixedly connected with needle 10, when sliding block 6 can drive blood storage tube 9 to ascend or descend in the process of moving, so as to achieve the effect of adjusting the length of needle 10.
[0034] The inside of slide 3 is slidably connected with pull rod 11, the bottom of pull rod 11 is fixedly connected with piston pad 12, by pull rod 11 can drive piston pad 12 to move, the outside of pull rod 11 is slidably connected in the inside of push handle 4, push handle 4 can limit the moving position of pull rod 11, the outside of pull rod 11 is slidably connected in the top end inside of blood storage tube 9, and blood storage tube 9 can also limit the moving position of pull rod 11, the outside of piston pad 12 is slidably connected in the inside of blood storage tube 9, the material of piston pad 12 is silica gel, piston pad 12 moves up, negative pressure is generated in blood storage tube 9, blood is inhaled into blood storage tube 9 by needle 10 under the action of pressure difference.
[0035] Refer to Figure 4 And Figure 5A sealing assembly for protecting the blood vessel 9 is fixedly connected to the bottom of the inner part of the transparent shell 1. The sealing assembly includes a fixed shell 13, which is fixedly connected to the bottom of the inner part of the transparent shell 1. The fixed shell 13 in the sealing assembly is firmly fixed to the bottom of the inner part of the transparent shell 1, providing a stable basic support frame for the entire sealing structure. Multiple dampers 14 are fixedly connected inside the fixed shell 13. These dampers 14 can effectively control the movement speed of the connected components and buffer external force impacts. Springs 15 are sleeved on the outside of the dampers 14. Sealing blocks 16 are fixedly connected to the adjacent ends of two dampers 14. One end of the spring 15 is fixedly connected to one end of the fixed shell 13. On the side, the fixed shell 13 can serve as the starting support point for the spring 15. The other end of the spring 15 is fixedly connected to one side of the sealing block 16. The sealing block 16 can compress the spring 15, causing the spring 15 to deform and generate potential energy. The near ends of the two sealing blocks 16 are in contact with the outside of the storage tube 9. Whether the device is stationary or under slight shaking, it can effectively prevent dust, impurities and other foreign objects from entering the storage tube 9, ensuring the cleanliness of the internal environment of the storage tube 9, thereby ensuring that the quality of the collected blood sample is not affected by external factors, and providing a reliable sample basis for subsequent medical testing and other work. The sealing block 16 is made of rubber, which has good flexibility and sealing performance.
[0036] Working principle: The spiral groove 2 inside the transparent shell 1 is one of the key structures. By rotating the slide rod 3, the externally fixed rotating block 7 can be rotated. When the rotating block 7 rotates, it can drive the two externally fixed locking blocks 8 to rotate inside the spiral groove 2, thereby achieving a downward effect. When the slide rod 3 rotates, it can drive the bottom fixed rotating block 5 to rotate, so that the rotating block 5 can rotate inside the sliding block 6. At the same time, the sliding block 6 can drive the blood vessel 9 and the needle 10 to descend or rise, thereby achieving the effect of adjusting the acupuncture depth.
[0037] The piston pad 12 inside the blood collection tube 9 is made of silicone and is externally slidably connected to the inside of the blood collection tube 9. The lifting rod 11 is connected to the piston pad 12 and slides inside the push handle 4 and the top of the blood collection tube 9. When performing a blood draw, first adjust the depth of the needle 10, then pull the lifting rod 11. The piston pad 12 moves upward, creating negative pressure inside the blood collection tube 9. Under the action of the pressure difference, blood is drawn into the blood collection tube 9 through the needle 10.
[0038] The sealing assembly at the bottom of the transparent shell 1 protects the blood storage tube 9. The damper 14 in the fixed shell 13 cooperates with the spring 15, one end of which is connected to the fixed shell 13 and the other end of which is connected to the sealing block 16, which is made of rubber. When the blood storage tube 9 is not used or is in a non-working state, the elastic force of the spring 15 makes the two sealing blocks 16 tightly contact the outside of the blood storage tube 9, preventing dust, bacteria and other pollutants from entering the blood storage tube 9, ensuring the cleanliness and sterility inside the blood storage tube 9 and ensuring the quality and safety of the blood sample. At the same time, the damper 14 can control the speed and force of the movement of the sealing block 16, avoiding damage or excessive compression of the blood storage tube 9, making the operation of the sealing assembly more stable and reliable.
[0039] Finally, it should be noted that the above only describes the preferred embodiments of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent replacements to some technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.
Claims
1. An adjustable blood withdrawal needle penetration depth control device comprising a transparent housing (1), characterized in that: The inside of the transparent shell (1) is provided with a spiral groove (2), the inside of the transparent shell (1) is slidably connected with a sliding rod (3), the top of the sliding rod (3) is fixedly connected with a push handle (4), the bottom of the sliding rod (3) is fixedly connected with a rotating block (5), the inside of the transparent shell (1) is slidably connected with a sliding block (6), the outside of the sliding rod (3) is fixedly connected with a rotating block (7), the outside of the rotating block (7) is fixedly connected with two clamping blocks (8), the bottom of the sliding block (6) is fixedly connected with a blood storage tube (9), the bottom of the blood storage tube (9) is fixedly connected with a needle (10), the inside bottom end of the transparent shell (1) is fixedly connected with a sealing assembly for protecting the blood storage tube (9).
2. The adjustable phlebotomy needle stick depth control device of claim 1, wherein: The sealing assembly comprises a fixed shell (13), the outside of the fixed shell (13) is fixedly connected to the inside bottom end of the transparent shell (1), the inside of the fixed shell (13) is fixedly connected with a plurality of dampers (14), the outside of the damper (14) is sleeved with a spring (15), and the proximal end of the two dampers (14) is fixedly connected with a sealing block (16).
3. The adjustable phlebotomy needle stick depth control device of claim 1, wherein: The inside of the sliding rod (3) is slidably connected with a lifting rod (11), and the bottom of the lifting rod (11) is fixedly connected with a piston pad (12).
4. The adjustable phlebotomy needle stick depth control device of claim 1, wherein: The outside of the two clamping blocks (8) is slidably connected in the inside of the spiral groove (2), and the outside of the rotating block (5) is rotatably connected in the inside of the sliding block (6).
5. The adjustable phlebotomy needle stick depth control device of claim 3, wherein: The outside of the lifting rod (11) is slidably connected in the inside of the push handle (4), and the outside of the lifting rod (11) is slidably connected in the inside of the top end of the blood storage tube (9).
6. The adjustable phlebotomy needle stick depth control device of claim 3, wherein: The outside of the piston pad (12) is slidably connected in the inside of the blood storage tube (9), and the material of the piston pad (12) is silica gel.
7. The adjustable phlebotomy needle stick depth control device of claim 2, wherein: One end of the spring (15) is fixedly connected to one side of the fixed shell (13), and the other end of the spring (15) is fixedly connected to one side of the sealing block (16).
8. The adjustable phlebotomy needle stick depth control device of claim 7, wherein: The proximal end of the two sealing blocks (16) is in contact with the outside of the blood storage tube (9), and the material of the sealing block (16) is rubber.