Remaining needle convenient for fixing scalp needle
By designing a clamping device on the joint part of the indwelling needle, the operation inconvenience and cleaning problems caused by tape winding and fixing in the prior art are solved, and convenient scalp needle fixation and sealing are achieved, and medical work efficiency and equipment reliability are improved.
Patent Information
- Application Number
- CN202421342172.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-13
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-06-13
AI Technical Summary
In the prior art, the connection between the fixed infusion device and the indwelling needle by using tape wrapping the tape leads to inconvenient operation of removing the scalp needle, affecting the work efficiency of medical staff, and the residual tape increases the difficulty of cleaning and disinfecting the heparin cap.
A retention needle is designed, including a clamping device, and the scalp needle is fixed in the joint part through the clamping slot member and the support member, avoiding tape wrapping and improving operational convenience and cleaning.
It improves the convenience of medical staff to remove scalp needles from the infusion device, reduces the difficulty of cleaning and disinfection of the heparin cap, enhances the stability and sealing of the connection, reduces the risk of leakage, and ensures liquid patency and the sealing effect of the bile cap.
Smart Images
Figure CN223143877U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical instruments, in particular to an indwelling needle which is convenient for fixing a scalp needle. Background Art
[0002] The heparin cap is a matching device for arterial / venous indwelling needles, which can be used for multiple and repeated punctures for infusion and injection of drugs in clinical practice.
[0003] In the prior art, after the connection between the infusion set and the indwelling needle is established by puncturing the heparin cap with the scalp needle of the infusion set, in order to prevent the scalp needle from falling off the heparin cap, the two need to be wrapped and fixed with tape. However, this method makes it very inconvenient to remove the scalp needle of the infusion set after the infusion is completed, affecting the work efficiency of medical staff; and after the tape is torn off, it is easy to leave residual glue on the surface of the heparin cap, which increases the difficulty of cleaning and disinfecting the heparin cap.
[0004] Therefore, under the premise of ensuring the stability of the connection between the infusion set and the indwelling needle, how to improve the convenience of removing the scalp needle of the infusion set, thereby improving the work efficiency of medical staff, is a technical problem that needs to be urgently solved in the existing technology. Utility Model Content
[0005] The purpose of the utility model is to solve the problem that after the infusion set and the indwelling needle are connected by puncturing the heparin cap with the scalp needle of the infusion set, in order to prevent the scalp needle from falling off the heparin cap, the two need to be wrapped and fixed with adhesive tape. However, this method makes it very inconvenient to remove the scalp needle of the infusion set after the infusion is completed, which affects the work efficiency of medical staff; and after the adhesive tape is torn off, it is easy to leave residual adhesive on the surface of the heparin cap, which increases the difficulty of cleaning and disinfecting the heparin cap. A indwelling needle that is easy to fix the scalp needle is provided.
[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:
[0007] An indwelling needle facilitating the fixation of a scalp needle, comprising an indwelling needle body, wherein the indwelling needle body includes a needle part and a connector part. The needle part is used for puncturing the skin of a patient, and the connector part is used for connecting infusion equipment. A catheter communicating the two is also provided between the needle part and the connector part. The connector part includes a connector tube body and a choline cap. The choline cap is arranged at the end of the connector tube body, and a threaded connection fit is provided between the connector tube body and the choline cap. A clamping device is further provided on the connector tube body. The clamping device includes a slot component and a support component. The support component is connected to the connector tube body, and the slot component is arranged at the end of the support component. After the infusion set is connected to the connector part, the wing plate of the scalp needle corresponds to the slot component, and the slot component is used for accommodating the wing plate of the scalp needle.
[0008] Preferably, the clamping device is arranged on the side surface of the connector tube body.
[0009] Preferably, the slot component is made of flexible rubber material or flexible silica gel material.
[0010] Preferably, a plurality of parallel accommodating cavities are provided on the slot component.
[0011] Preferably, the support component includes a support section and a base section. The support section is vertically connected to the base section. The base section is arranged as an annular structure. A fixing groove is provided at the inner end of the threaded section of the connector tube body, and the base section is clamped in the fixing groove. A separable connection fit is provided between the base section and the connector tube body. When the choline cap is connected to the connector tube body, the end of the choline cap abuts against the base section to realize the connection and fixation of the support component and the connector tube body.
[0012] Preferably, a rubber cushion layer is provided on the surface of the base section.
[0013] Preferably, a limiting sliding groove is provided on the base section, and the support section is connected to the limiting sliding groove. The limiting sliding groove has an unlocking state and a locking state. In the unlocking state, a sliding connection fit is formed between the support section and the limiting sliding groove, and the support section can slide towards the catheter direction or towards the direction away from the catheter. In the locking state, a fixed connection fit is formed between the support section and the limiting sliding groove.
[0014] Preferably, a bearing patch is further provided on the connector tube body, and the bearing patch is used for increasing the contact area between the connector tube body and the human skin.
[0015] Preferably, the surface of the bearing patch in contact with the human skin has adhesiveness.
[0016] Preferably, a liquid stop clamp is further provided on the catheter, and the liquid stop clamp is used to open or close the flow channel of the catheter.
[0017] In summary, due to the adoption of the above technical solutions, the beneficial effects of the present utility model are as follows:
[0018] 1. For the indwelling needle facilitating the fixation of the scalp needle according to the present utility model, the clamping device is provided on the joint tube body. After the scalp needle of the infusion set is inserted into the bile pigment cap, the wing plate of the scalp needle is clamped in the accommodating cavity of the slot component, and thus the connection between the scalp needle and the joint part can be strengthened. Compared with the prior art in which the infusion set and the indwelling needle are strengthened by winding with adhesive tape, the present novel type can effectively improve the convenience of the reinforcement operation for medical staff and the convenience of removing the scalp needle of the infusion set by medical staff after the infusion is completed. Moreover, using the clamping device to fix the scalp needle of the infusion set can avoid leaving residual glue on the surface of the bile pigment cap compared with the prior art, reducing the operation difficulty of disinfecting and cleaning the bile pigment cap by medical staff, and thus further improving the work efficiency of medical staff.
[0019] 2. The indwelling needle facilitating the fixation of the scalp needle according to the present utility model includes a support section and a base section. The support section is vertically connected to the base section. The base section is arranged in a circular ring structure. A fixing groove is provided at the inner end of the threaded section of the joint tube body. The base section is clamped in the fixing groove, and the connection between the base section and the joint tube body is a separable connection fit. When the bile pigment cap is connected to the joint tube body, the end of the bile pigment cap abuts against the base section, realizing the connection and fixation between the support component and the joint tube body. Further, a rubber cushion layer is provided on the surface of the base section. With this structural arrangement, the sealing performance of the connection between the bile pigment cap and the joint tube body can be improved, reducing the risk of leakage at this part during actual use, and thus further improving the practicability and reliability of the present novel type.
[0020] 3. An indwelling needle facilitating the fixation of a scalp needle according to the present utility model. A limiting chute is provided on the base section, and the support section is connected to the limiting chute. The limiting chute has an unlocking state and a locking state. In the unlocking state, the support section forms a sliding connection fit with the limiting chute, and the support section can slide towards the catheter direction or away from the catheter direction. In the locking state, the support section forms a fixed connection fit with the limiting chute. With this structural arrangement, it is possible to avoid the wing plate of the scalp needle being misaligned with the opening of the card slot component. Thus, after the scalp needle is connected to the card slot component, the card slot component will not exert a force on the scalp needle, effectively preventing the needle tube of the scalp needle from being bent and deformed, ensuring the smooth flow of liquid through the needle tube part of the scalp needle. At the same time, it also avoids the thrust force exerted by the card slot component being transmitted to the puncture surface of the bile pigment cap through the needle tube of the scalp needle, thereby effectively preventing the increase in the area of the puncture opening of the bile pigment cap and ensuring the sealing effect of the bile pigment cap. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 is a schematic structural view of an indwelling needle facilitating the fixation of a scalp needle;
[0022] Figure 2 is Figure 1 the schematic structural view of A in
[0023] Figure 3 is a schematic structural view of the card slot component in the clamping device;
[0024] Figure 4 is a schematic structural view of a bearing patch provided on the joint pipe body.
[0025] Reference numerals in the figures: 1 - indwelling needle body, 2 - needle head part, 3 - joint part, 4 - catheter, 5 - joint pipe body, 6 - bile pigment cap, 7 - clamping device, 8 - card slot component, 9 - support component, 10 - support section, 11 - base section, 12 - limiting chute, 13 - bearing patch, 14 - liquid stop clip, 15 - scalp needle. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0026] The present utility model will be described in detail below with reference to the accompanying drawings.
[0027] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model.
[0028] Accordingly, the following detailed description of the embodiments of the present utility model is not intended to limit the scope of the claimed present utility model, but merely represents some embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present utility model without creative efforts fall within the scope of protection of the present utility model.
[0029] It should be noted that, without conflict, the embodiments in the present utility model and the features and technical solutions in the embodiments may be combined with each other.
[0030] It should be noted that like reference numerals and letters denote like items in the following figures, and thus, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0031] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "upper", "lower", etc. is based on the orientation or positional relationship shown in the figures, or the orientation or positional relationship in which the inventive product is customarily placed during use, or the orientation or positional relationship commonly understood by those skilled in the art. Such terms are only for the convenience of describing the present utility model and simplifying the description, and do not 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 a limitation of the present utility model. In addition, terms such as "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.
[0032] Embodiment 1: As Figures 1 to 3 shown, an indwelling needle for facilitating the fixation of a scalp needle 15 according to the present utility model includes an indwelling needle body 1. The indwelling needle body 1 includes a needle part 2 and a connector part 3. The needle part 2 is used for puncturing the skin of a patient, and the connector part 3 is used for connecting infusion equipment. A catheter 4 communicating the two is further provided between the needle part 2 and the connector part 3. The connector part 3 includes a connector tube body 5 and a choline cap 6. The choline cap 6 is arranged at the end of the connector tube body 5. The connector tube body 5 and the choline cap 6 are in threaded connection and cooperation. A clamping device 7 is further provided on the connector tube body 5. The clamping device 7 includes a slot component 8 and a support component 9. The support component 9 is connected to the connector tube body 5. The slot component 8 is arranged at the end of the support component 9. After the infusion set is connected to the connector part 3, the fin of the scalp needle 15 corresponds to the slot component 8, and the slot component 8 is used for accommodating the fin of the scalp needle 15.
[0033] Using an indwelling needle that facilitates the fixation of the scalp needle 15 described in the present novelty, the clamping device 7 is provided on the joint tube body 5. After the scalp needle 15 of the infusion set is inserted into the bile pigment cap 6, the wing plate of the scalp needle 15 is clamped in the receiving cavity of the slot component 8, and the connection between the scalp needle 15 and the joint part 3 can be strengthened. Compared with the prior art method of using tape winding to reinforce the infusion set and the indwelling needle, the present novelty can effectively improve the convenience of the reinforcement operation by medical staff and the convenience of removing the scalp needle 15 of the infusion set after the infusion by medical staff. Moreover, using the clamping device 7 to fix the scalp needle 15 of the infusion set can avoid leaving residual glue on the surface of the bile pigment cap 6 compared with the prior art, reducing the operation difficulty of medical staff in disinfecting and cleaning the bile pigment cap 6, thereby further improving the work efficiency of medical staff.
[0034] As a preferred embodiment, on the basis of the above method, further, the clamping device 7 is provided on the side surface of the joint tube body 5. With this structural arrangement, it can be avoided that the stepped structure formed at the connection part between the clamping device 7 and the joint tube body 5 contacts the patient's skin, reducing the risk of skin being crushed and improving the practical comfort of the present novelty.
[0035] As a preferred embodiment, on the basis of the above method, further, the slot component 8 is made of flexible rubber material or flexible silicone material. With this structural arrangement, the slot component 8 can generate a certain elastic contraction force, enhancing the tightness of the slot component 8 covering the wing plate of the scalp needle 15, thereby further strengthening the stability of the connection between the clamping device 7 and the scalp needle 15. Moreover, with this structural arrangement, after the scalp needle 15 is inserted into the bile pigment cap 6, the fitting error formed between the wing plate of the scalp needle 15 and the opening of the slot component 8 can be offset by the elastic deformation ability of the slot component 8, ensuring that the wing plate of the scalp needle 15 can be inserted into the receiving cavity of the slot component 8, thereby further improving the practicality and reliability of the present novelty in actual use.
[0036] As a preferred embodiment, on the basis of the above method, further, a plurality of parallel receiving cavities are provided on the slot component 8. With this structural arrangement, the clamping device 7 can fix multiple scalp needles 15 of the infusion set simultaneously in actual use, improving the practicality of the present novelty in actual use.
[0037] Example 2: As Figures 1 to 3As shown in the figure, a retention needle facilitating the fixation of a scalp needle 15 according to the present utility model, on the basis of the above-mentioned manner, further, the support member 9 includes a support section 10 and a base section 11, the support section 10 is vertically connected to the base section 11, the base section 11 is arranged in a ring structure, an end portion inside the threaded section of the connector tube body 5 is provided with a fixing groove, the base section 11 is snap-fitted in the fixing groove, and the connection between the base section 11 and the connector tube body 5 is a separable connection fit; when the choline cap 6 is connected to the connector tube body 5, an end portion of the choline cap 6 abuts against the base section 11 to realize the connection and fixation of the support member 9 and the connector tube body 5. Further, a rubber cushion layer is provided on the surface of the base section 11. With this structural arrangement, the sealing performance of the connection between the choline cap 6 and the connector tube body 5 can be improved, and the risk of leakage at this part during actual use can be reduced, thereby further improving the practicability and reliability of the present novelty.
[0038] Embodiment 3: As Figure 1 and Figure 2 shown in the figure, a retention needle facilitating the fixation of a scalp needle 15 according to the present utility model, on the basis of the above-mentioned manner, further, a limiting sliding groove 12 is provided on the base section 11, the support section 10 is connected to the limiting sliding groove 12, the limiting sliding groove 12 has an unlocking state and a locking state, in the unlocking state, the support section 10 forms a sliding connection fit with the limiting sliding groove 12, and the support section 10 can slide towards the catheter 4 or away from the catheter 4, and in the locking state, the support section 10 forms a fixed connection fit with the limiting sliding groove 12.
[0039] In the above-mentioned embodiment, the scalp needle 15 of the infusion set needs to be inserted into the choline cap 6 first and then fixed using the clamping device 7. In such an operation mode, it is easy for the wing plate of the scalp needle 15 to be misaligned with the opening part of the card slot component 8. Although the elastic deformation ability of the card slot component 8 can offset the misalignment between the two in the above-mentioned embodiment to ensure that the wing plate of the scalp needle 15 can be inserted into the accommodation cavity of the card slot component 8, there are still deficiencies:
[0040] When there is a misalignment between the wing plate of the scalp needle 15 and the opening of the card slot component 8, after connecting the two, the card slot component 8 will apply a certain pushing force to the wing plate of the scalp needle 15, which is likely to cause the needle tube part of the scalp needle 15 to be bent and deformed, affecting the smooth flow of the liquid through the needle tube part of the scalp needle 15; moreover, the pushing force applied by the card slot component 8 acts on the puncture surface of the choline cap 6 through the needle tube of the scalp needle 15, and it is also likely to increase the area of rupture of the puncture opening of the choline cap 6, thereby affecting the sealing effect of the choline cap 6.
[0041] For the above reasons, in this embodiment, the limiting sliding groove 12 is provided on the base section 11. Different from the above fixing method, when this embodiment is in use, first adjust the limiting sliding groove 12 to the unlocked state, and push / pull the support section 10 to slide in a direction away from the catheter 4 until the length of the support section 10 exceeding the end of the joint tube body 5 is greater than the overall length of the scalp needle 15. Then, snap the wing plate of the scalp needle 15 into the accommodation cavity of the slot component 8. Next, push / pull the support section 10 to slide in the direction of the catheter 4 until the needle tube of the scalp needle 15 is completely inserted into the bile pigment cap 6. Finally, adjust the limiting sliding groove 12 to the locked state. With this structural arrangement, it can be avoided that the wing plate of the scalp needle 15 is misaligned with the opening of the slot component 8. Further, after the scalp needle 15 is connected to the slot component 8, the slot component 8 will not apply a force to the scalp needle 15, effectively preventing the needle tube of the scalp needle 15 from being bent and deformed, and ensuring the smoothness of the liquid flowing through the needle tube part of the scalp needle 15. At the same time, it also avoids the top thrust applied by the slot component 8 being transmitted to the puncture surface of the bile pigment cap 6 through the needle tube of the scalp needle 15, thereby effectively preventing the increase in the area of the puncture opening of the bile pigment cap 6 and ensuring the sealing effect of the bile pigment cap 6.
[0042] In this embodiment, the limiting sliding groove 12 includes a groove body and a limiting post. The support section 10 is clamped in the groove body, and a plurality of limiting holes are provided on the support section 10. When the limiting post is inserted into the limiting holes on the support section 10, the limiting sliding groove 12 forms a locked state. When the limiting post is pulled out from the limiting holes on the support section 10, the limiting sliding groove 12 forms an unlocked state.
[0043] Example 4: As Figure 4 shown, for the indwelling needle facilitating the fixation of the scalp needle 15 according to the present invention, on the basis of the above method, further, a bearing patch 13 is also provided on the joint tube body 5, and the bearing patch 13 is used to increase the contact area between the joint tube body 5 and the human skin. With this structural arrangement, it can further reduce the risk of skin abrasion caused to the patient during the use of the indwelling needle, and improve the comfort of the present invention in actual use.
[0044] As a preferred implementation scheme, on the basis of the above method, further, the surface of the bearing patch 13 in contact with the human skin has adhesiveness.
[0045] As a preferred implementation scheme, on the basis of the above method, further, a liquid stop clip 14 is also provided on the catheter 4, and the liquid stop clip 14 is used to open or close the flow channel of the catheter 4.
[0046] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A indwelling needle facilitating scalp needle fixation, characterized in that, It includes an indwelling needle body, the indwelling needle body includes a needle part and a connector part, the needle part is used for puncturing the skin of a patient, the connector part is used for connecting infusion equipment, and a catheter communicating the two is also provided between the needle part and the connector part; the connector part includes a connector tube body and a choline cap, the choline cap is arranged at the end of the connector tube body, and the connection between the connector tube body and the choline cap is a threaded connection fit. A clamping device is also arranged on the connector tube body. The clamping device includes a slot part and a support part. The support part is connected to the connector tube body, and the slot part is arranged at the end of the support part. After the infusion set is connected to the connector part, the wing plate of the scalp needle corresponds to the slot part, and the slot part is used for accommodating the wing plate of the scalp needle.
2. The indwelling needle facilitating the fixation of a scalp needle according to claim 1, wherein, The clamping device is arranged on the side of the connector tube body.
3. The indwelling needle facilitating the fixation of a scalp needle according to claim 2, wherein, The slot part is made of flexible rubber material or flexible silicone material.
4. The indwelling needle facilitating the fixation of a scalp needle according to claim 3, characterized in that, A plurality of mutually parallel receiving cavities are arranged on the slot part.
5. The indwelling needle facilitating scalp needle fixation according to claim 2, wherein, The support part includes a support section and a base section. The support section is vertically connected to the base section. The base section is arranged as a circular ring structure. A fixing groove is arranged at the inner end of the threaded section of the connector tube body, and the base section is clamped in the fixing groove. The connection between the base section and the connector tube body is a separable connection fit; when the choline cap is connected to the connector tube body, the end of the choline cap abuts against the base section to realize the connection and fixation of the support part and the connector tube body.
6. The indwelling needle facilitating the fixation of a scalp needle according to claim 5, characterized in that, A rubber cushion layer is arranged on the surface of the base section.
7. The indwelling needle facilitating scalp needle fixation according to claim 6, wherein, A limiting sliding groove is arranged on the base section, and the support section is connected to the limiting sliding groove. The limiting sliding groove has an unlocking state and a locking state. In the unlocking state, the support section forms a sliding connection fit with the limiting sliding groove, and the support section can slide towards the catheter direction or towards the direction away from the catheter. In the locking state, the support section forms a fixed connection fit with the limiting sliding groove.
8. The indwelling needle facilitating scalp needle fixation according to claim 1, wherein A bearing patch is also arranged on the connector tube body, and the bearing patch is used for increasing the contact area between the connector tube body and the human skin.
9. The indwelling needle facilitating the fixation of scalp needles according to claim 8, characterized in that, The surface of the bearing patch in contact with the human skin has adhesiveness.
10. The indwelling needle facilitating scalp needle fixation according to claim 1, wherein, A stop clamp is also arranged on the catheter, and the stop clamp is used for opening or closing the flow channel of the catheter.