Needle head protection device and safety type puncture needle
By designing a needle protection device on the puncture needle and using an elastic protective sheet to cover the needle tip, the safety hazard of puncture needles injuring people after they are discarded is solved, and the safety of puncture needles after use is improved.
Patent Information
- Application Number
- CN202423089662.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-13
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2034-12-13
AI Technical Summary
Discarded puncture needles pose a safety hazard of injuring the hands of medical staff or hospital personnel.
A needle protection device has been designed, including a housing and a protective component. The protective component consists of a needle core mating piece and an elastic protective piece. After puncture, the protective device is slid to the needle side to cover the needle and prevent puncture.
This effectively avoids the risk of puncture needles injuring medical staff after use, thus improving safety.
Smart Images
Figure CN223944755U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of medical devices, in particular to a needle protection device and a safety puncture needle. BACKGROUND
[0002] In a catheterization operation, a puncture needle is usually used to introduce a guide wire or a catheter into a blood vessel. During the puncture process, the sharp needle of the puncture needle is used to puncture the blood vessel of a patient. After the puncture is completed, the puncture needle is withdrawn and discarded. Since the needle end of the puncture needle is relatively sharp, there is a risk of the needle pricking the hands of medical staff or other hospital staff. CONTENT OF THE UTILITY MODEL
[0003] To solve one of the above technical defects, the present application provides a needle protection device and a safety puncture needle to solve the problem that the puncture needle pricks the hands of medical staff or other hospital staff after being discarded.
[0004] The utility model adopts the following technical scheme:
[0005] The first object of the present application is to provide a needle protection device, comprising:
[0006] a shell;
[0007] a protection component connected to the shell, the protection component comprising a needle core fitting piece and two elastic protection pieces, the needle core fitting piece having a needle insertion slot, the two elastic protection pieces being connected to the two sides of the needle core fitting piece respectively, the elastic protection piece being provided with a protection piece portion at the end away from the needle core fitting portion, and the extension line of the needle insertion slot passing through the protection piece portion.
[0008] Optionally, the protection piece portion is a circular arc piece, and the concave side of the circular arc piece faces the needle core fitting piece.
[0009] Optionally, the protection piece portions of the two elastic protection pieces are sequentially arranged along the extension line of the needle insertion slot.
[0010] Optionally, the protection component is an integrally formed piece.
[0011] Optionally, an outer extension portion is provided on the protection component.
[0012] The shell has a cavity and a limiting fitting hole communicating with the cavity.
[0013] The protection component is arranged in the cavity, and the outer extension portion and the limiting fitting hole are in limiting fitting.
[0014] Optionally, a notch is provided on the elastic protection piece of the protection component.
[0015] The outer extension comprises a clamping strip arranged on the needle core fitting sheet, and the clamping strip is located at the edge of the notch;
[0016] The clamping strip extends to the corresponding limiting fitting hole.
[0017] Optionally, the shell comprises a first barrel shell and a second barrel shell, the second barrel shell is connected to one end of the first barrel shell, the cavity comprises a first barrel cavity arranged in the first barrel shell and a second barrel cavity arranged in the second barrel shell, and the inner diameter of the second barrel cavity is greater than that of the first barrel cavity;
[0018] The protection component is located in the second barrel cavity.
[0019] Optionally, the second barrel shell is provided with an opening;
[0020] At least the protection sheet part is exposed to the opening.
[0021] Optionally, two limiting bodies are arranged in the second barrel cavity, and the two limiting bodies are arranged at intervals;
[0022] The protection component is located between the two limiting bodies.
[0023] The arrangement direction of the two elastic protection sheets is perpendicular to the arrangement direction of the two limiting bodies.
[0024] The second purpose of the present application is to provide a safety puncture needle, comprising:
[0025] A needle body having a needle core and a needle handle connected to the needle core, and the needle core has a limiting part;
[0026] A needle head protection device, and the needle core penetrates the needle slot;
[0027] The safety puncture needle has a first state and a second state;
[0028] In the first state, the needle head protection device is located at one end of the needle core close to the needle handle, and the protection sheet parts of the two elastic protection sheets are respectively elastically abutted against the needle core;
[0029] In the second state, the needle head protection device slides along the needle core to the limiting part of the needle slot, the protection sheet parts of the two elastic protection sheets are both separated from the needle core, and the protection sheet parts cover one end of the needle core away from the needle handle.
[0030] By adopting the above technical scheme, the present application has the following beneficial effects:
[0031] The needle protection device provided by the embodiment of the application can be sleeved on the needle body of the puncture needle, and after the puncture needle is used, the needle protection device can be moved to the side of the needle head of the needle body, the needle protection device can be limited on the needle head and cover the needle head, so that the medical staff is prevented from being pricked by the puncture needle, and the safety is improved. BRIEF DESCRIPTION OF DRAWINGS
[0032] The accompanying drawings, which are included to provide a further understanding of the application and constitute a part of this application, illustrate certain illustrative embodiments of the application and together with the description serve to explain the application. In the drawings:
[0033] Figure 1 A structure schematic view of a protection component of the needle protection device provided by the embodiment of the application is shown;
[0034] Figure 2 A structure schematic view of a shell of the needle protection device provided by the embodiment of the application is shown;
[0035] Figure 3 A structure schematic view of the safety puncture needle provided by the embodiment of the application is shown;
[0036] Figure 4 A structure schematic view of Figure 3 A part A enlarged view of
[0037] Figure 5 A cross-sectional view of the safety puncture needle provided by the embodiment of the application is shown, and a needle sleeve is sleeved on the safety puncture needle;
[0038] Figure 6 A structure schematic view of Figure 5 A part B enlarged view of
[0039] In the figure: 1, shell; 11, first barrel shell; 111, first barrel cavity; 112, limiting cooperation hole; 12, second barrel shell; 121, second barrel cavity; 122, gap; 123, limiting body; 2, protection component; 21, needle core cooperation sheet; 211, needle penetrating groove; 22, elastic protection sheet; 221, notch; 222, protection sheet part; 23, outer extension part; 3, needle body; 31, needle core; 311, limiting part; 32, needle handle; 4, needle sleeve. DETAILED DESCRIPTION
[0040] In order to make the technical solutions and advantages in the embodiments of the application clearer, the exemplary embodiments of the application are further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the application, and not all the embodiments. It should be noted that the embodiments in the application and the features in the embodiments can be combined with each other without conflict.
[0041] In the description of the application and the embodiments thereof, it is to be understood that the orientation or positional relationship indicated by the terms "top", "bottom", "height" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the application.
[0042] In the present application and its embodiments, unless otherwise explicitly specified and limited, the terms "arrangement", "installation", "connection", "connection", "fixation" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected, or it can be communicated; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0043] In the present application and its embodiments, unless otherwise explicitly specified and limited, the first feature "on" or "under" the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the first feature is higher in horizontal height than the second feature. The first feature "under", "below" and "under" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the first feature is lower in horizontal height than the second feature.
[0044] Figure 1 A structural schematic diagram of a protection component of a needle protection device provided by an embodiment of the present application is shown; Figure 2 A structural schematic diagram of a housing of a needle protection device provided by an embodiment of the present application is shown; Figure 3 A structural schematic diagram of a safety puncture needle provided by an embodiment of the present application is shown; Figure 4 A structural schematic diagram of a safety puncture needle provided by an embodiment of the present application is shown; Figure 3 An enlarged view of the middle A part; Figure 5 A sectional view of a safety puncture needle provided by an embodiment of the present application is shown. Figure 6 A structural schematic diagram of a safety puncture needle provided by an embodiment of the present application is shown; Figure 5Enlarged view of section B. The needle protection device provided in this application embodiment includes: a housing 1 and a protective component 2. The protective component 2 is connected to the housing 1. The protective component 2 includes a needle core mating piece 21 and two elastic protective pieces 22. The needle core mating piece 21 has a needle groove 211. The two elastic protective pieces 22 are respectively connected to both sides of the needle core mating piece 21. A protective piece portion 222 is provided at the end of the elastic protective piece 22 away from the mating part of the needle core 31. In the absence of external force, the extension line of the needle groove 211 passes through the two protective pieces 222 in sequence.
[0045] The needle protection device provided in this embodiment can be fitted onto the needle body 3 of a safety puncture needle. The needle body 3 has a needle core 31 and a needle handle 32 connected to the needle core 31. The needle core 31 has a limiting part 311 and passes through the needle groove 211 of the needle protection device. The safety puncture needle has a first state and a second state. The first state is the state in which the safety puncture needle is not used. In this state, such as Figure 5 As shown, the needle protection device is located at one end of the needle core 31 near the needle handle 32, as... Figure 6 As shown, the protective sheet portions 222 of the two elastic protective sheets 22 elastically abut against the outer wall surface of the needle core 31, and both elastic components are in a state of deformation under stress. The second state is the state after puncture is completed. See [link / reference]. Figure 3 and Figure 4 As shown, in this state, the needle protection device is moved to the needle tip side of the needle core 31. The needle protection device slides along the needle core 31 to the limiting part 311 on the needle core 31 within the needle groove 211. The protective sheet portions 222 of both elastic protective sheets 22 detach from the needle core 31, and both elastic protective sheets 22 restore their deformation, so that the protective sheet portions 222 cover the end of the needle core 31 away from the needle handle 32, thus blocking the needle tip side of the needle core 31. Therefore, after the puncture needle is used, the needle protection device can be limited to and cover the needle tip, thereby preventing the puncture needle from injuring medical personnel and improving safety.
[0046] In some possible implementations, the protective sheet 222 is an arc-shaped sheet with the concave side facing the needle core mating sheet 21.
[0047] The end of the needle core 31 extends to the concave side of the arc-shaped plate, where it is effectively protected by the arc surface. Furthermore, the convex side of the arc surface is smooth and without sharp edges, preventing cuts to the skin and effectively separating the needle tip of the needle body 3 from the skin. In the first state, see... Figure 6 As shown, the arc-shaped piece does not rest against the needle core 31 with its edge; rather, the convex surface of the arc-shaped piece rests against the surface of the needle core 31. The arc-shaped piece will not cut the surface of the needle core 31.
[0048] In some possible embodiments, the protective piece portions 222 of the two elastic protective pieces 22 are arranged along the extension line of the needle passing slot 211 in sequence, that is, the two protective piece portions 222 are staggered, and in the second state, the two elastic protective pieces 22 are elastically reset, so that the protective piece portions 222 of the two elastic protective pieces 22 are respectively moved to the side of the end of the needle core 31, the two protective piece portions 222 do not interfere with each other, and the extension line of the needle passing slot 211 sequentially passes through the two protective piece portions 222.
[0049] In some possible embodiments, the protective component 2 is an integrally formed piece. The protective piece portion of the present application is an integrally formed piece, which is simple in structure and simple in production process. The protective component 2 can be a plastic piece or a metal piece.
[0050] In some possible embodiments, the protective component 2 is provided with an outer extension portion 23, the shell 1 has a cavity and a limiting fitting hole 112 communicating with the cavity, the protective component 2 is arranged in the cavity, and the outer extension portion 23 and the limiting fitting hole 112 are limited and fitted, so as to effectively combine the shell 1 and the protective component 2, the shell 1 plays a protective and aesthetic role, and the arrangement of the shell 1 also facilitates the user to hold and move the needle protection device. The shell 1 can be a plastic piece.
[0051] In some possible embodiments, the elastic protective piece 22 of the protective component 2 can be provided with a notch 221, and the limiting portion 311 can include a clamping strip arranged on the needle core fitting piece 21, the clamping strip is located at the edge of the notch 221, and the clamping strip extends to the corresponding limiting fitting hole 112. The clamping strip can be formed by bending the cut part outward after cutting the notch 221 on the elastic protective piece 22.
[0052] In some possible embodiments, the shell 1 includes a first barrel 11 and a second barrel 12, the second barrel 12 is connected to one end of the first barrel 11, the cavity includes a first barrel cavity 111 arranged in the first barrel 11 and a second barrel cavity 121 arranged in the second barrel 12, the inner diameter of the second barrel cavity 121 is greater than that of the first barrel cavity 111, and the protective component 2 is arranged in the second barrel cavity 121. In the first state, the protective piece portions 222 of the two elastic protective pieces 22 abut against the needle handle 32, so that the distance between the two elastic protective pieces 22 is increased, and by increasing the inner diameter of the second barrel cavity 121, the protective piece portions 222 can be effectively accommodated in the first state.
[0053] In some possible embodiments, as shown in Figure 2 The second barrel 12 is provided with an opening 122, and at least the protective piece portions 222 are exposed to the opening 122.
[0054] In this embodiment, the cooperation structure of the elastic protection piece 22 and the needle core 31 can be observed by setting the opening 122 on the second barrel 12. After the puncture is completed, the needle protection device is moved to the needle side of the needle core 31, and it can be determined through the opening 122 whether the needle is effectively covered and protected by the protection piece part.
[0055] In some possible embodiments, two limiting bodies 123 are arranged in the second barrel cavity 121, the two limiting bodies 123 are arranged at intervals, and the protection component 2 is located between the two limiting bodies 123, wherein the arrangement direction of the two elastic protection pieces 22 is perpendicular to the arrangement direction of the two limiting bodies 123, that is, the two limiting bodies 123 can be located on both sides of the elastic protection piece 22 in the width direction. The two limiting bodies 123 and the protection component 2 are limited and matched to prevent the protection component 2 from rotating.
[0056] When the safety puncture needle is not used, the needle cover 4 can be sleeved on the needle body 3, thereby playing a role of protecting the needle body 3 and isolating the needle body 3 from the outside. When the safety puncture needle needs to be used, the needle cover 4 can be removed.
[0057] The safety puncture needle provided by the embodiment of the application also comprises a needle body 3 and a needle protection device. The needle body 3 has a needle core 31 and a needle handle 32 connected to the needle core 31. The needle core 31 has a limiting part 311, and the needle core 31 penetrates through the needle penetrating groove 211. The safety puncture needle has a first state and a second state. In the first state, the needle protection device is located at one end of the needle core 31 close to the needle handle 32, the first barrel 11 of the needle protection device can be fixedly sleeved on the needle handle 32, and the protection piece parts 222 of the two elastic protection pieces 22 are elastically abutted on the needle core 31, respectively. In the second state, the first barrel 11 is separated from the needle handle 32 by an external force, the needle protection device slides along the needle core 31 to the position where the needle penetrating groove 211 is limited to the limiting part 311, the protection piece parts 222 of the two elastic protection pieces 22 are all separated from the needle core 31, and the protection piece parts 222 cover one end of the needle core 31 away from the needle handle 32.
[0058] It should be noted that the limiting part 311 of the needle core 31 can be a part of the needle core 31 that is locally expanded in diameter, so that the outer diameter of the limiting part 311 is greater than the needle penetrating groove 211 of the needle core cooperation piece 21. In the second state, as shown in FIG. 6, the needle core cooperation piece 21 is limited to the side of the limiting part 311 away from the needle core 31, and the protection piece is limited to the needle side of the needle core. The entire needle protection device is limited to the needle of the needle core 31 and cannot be separated from the needle of the needle core. Of course, the limiting part 311 of the needle core 31 can be a part of the needle core that is locally flattened, so that the width of the flattened part is greater than the inner diameter of the needle penetrating groove 211. Figure 4
[0059] The foregoing disclosure provides many different embodiments or examples for implementing different structures of the present application. For purposes of simplicity of the present disclosure, the foregoing description has set forth various aspects of the present application in connection with specific examples. It should be apparent to those skilled in the art that certain aspects of the application can be practiced without all of the details of the above-described embodiments. In fact, it would be recognized that the application is capable of many modifications and variations and, accordingly, the application is not to be limited to the specific examples described. For purposes of simplicity of explanation, the specific examples are set forth in the context of the present application. The disclosure is presented in the order of disclosed aspects within each example and section.
[0060] While the preferred embodiments of the application have been described, additional variations and modifications can be made to the preferred embodiments without departing from the spirit and scope of the application. Therefore, it is intended that such additional variations and modifications be included within the scope of the application. The application is to be limited only by the claims and equivalents thereof.
[0061] Obviously, many modifications and variations of the present application are possible in light of the above teachings. It is, therefore, to be understood that within the scope of the claims and their equivalents, the application can be practiced otherwise than as specifically described.
Claims
1. A needle protection device, characterized in that The utility model relates to a safety type puncture needle, including: A shell; A protection component connected to the shell, the protection component includes a needle core fitting piece and two elastic protection pieces, the needle core fitting piece has a needle slot, two elastic protection pieces are connected to both sides of the needle core fitting piece respectively, the elastic protection piece is provided with a protection piece part at the end away from the needle core fitting part, and the extension line of the needle slot passes through the protection piece part.
2. The needle guard of claim 1, wherein, The protection piece part is a circular arc piece, and the concave side of the circular arc piece faces the needle core fitting piece.
3. The needle guard of claim 2, wherein, The protection piece parts of the two elastic protection pieces are sequentially arranged along the extension line of the needle slot.
4. The needle guard of claim 1, wherein, The protection component is an integral molding piece.
5. The needle guard of claim 1, wherein, An outer extension part is arranged on the protection component; The shell has a cavity and a limiting fitting hole communicating with the cavity; The protection component is arranged in the cavity, and the outer extension part and the limiting fitting hole are limited and fitted.
6. The needle guard of claim 5, wherein, A notch is arranged on the elastic protection piece of the protection component; The outer extension part includes a clamping strip arranged on the needle core fitting piece, and the clamping strip is located at the edge of the notch; The clamping strip extends to the corresponding limiting fitting hole.
7. The needle guard of claim 5, wherein, The shell includes a first barrel and a second barrel, the second barrel is connected to one end of the first barrel, the cavity includes a first barrel cavity arranged in the first barrel and a second barrel cavity arranged in the second barrel, and the inner diameter of the second barrel cavity is greater than that of the first barrel cavity; At least the protection piece part of the protection component is located in the second barrel cavity.
8. The needle guard of claim 7, wherein, The second barrel is provided with an opening; At least the protection piece part is exposed to the opening.
9. The needle guard of claim 7, wherein, Two limiting bodies are arranged in the second barrel cavity, and the two limiting bodies are arranged at intervals; The protection component is located between the two limiting bodies; The arrangement direction of the two elastic protection pieces is perpendicular to the arrangement direction of the two limiting bodies.
10. A safety type puncture needle characterized by comprising: The utility model relates to a safety type puncture needle, including: A needle body having a needle core and a needle handle connected to the needle core, and the needle core has a limiting part; The safety type puncture needle according to any one of claims 1-9, the needle core penetrates the needle slot; The safety type puncture needle has a first state and a second state; In the first state, the needle head protection device is located at the end of the needle core close to the needle handle, and the protection piece parts of the two elastic protection pieces are elastically abutted on the needle core respectively; In the second state, the needle head protection device is slid along the needle core to the limiting part of the needle slot, the protection piece parts of the two elastic protection pieces are all separated from the needle core, and the protection piece parts cover the end of the needle core away from the needle handle.