Needle tube assembly fixture capable of preventing needle tip from being damaged
By designing the coordination of the upper shell clamp, needle clamp, and horizontal slide rail, the problem of needle tip piercing the inner cavity of the upper shell was solved, enabling fast and safe needle assembly and reducing the risk and cost of needle tip damage.
Patent Information
- Application Number
- CN202422963214.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-03
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2034-12-03
AI Technical Summary
When assembling the existing needle tube with the upper shell, the needle tip is prone to piercing the inner cavity of the upper shell, and the axis is not consistent, resulting in burrs and blunting of the needle tip, which increases the patient's puncture pain.
The design incorporates an upper shell clamp, a needle tube clamp, and a horizontal slide rail. Through the cooperation of the needle tube guide seat, the upper shell positioning groove, and the guide groove, the needle body is quickly aligned with the inner hole, avoiding damage to the needle tip.
It enables rapid and accurate assembly of the syringe and the upper shell, reduces the risk of needle tip damage, improves operational safety and efficiency, and is cost-effective.
Smart Images
Figure CN223734751U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to medical treatment instrument, in particular to a needle tube assembly fixture of avoiding needle tip injury. BACKGROUND
[0002] After the existing needle tube and base are pre-assembled, the needle tube needs to pass through the inner hole diameter d1 of the upper shell, when the needle tip passes through the inner hole of the front end of the upper shell, the needle tip is easy to pierce into the inner cavity of the upper shell, and the axes of the base and the needle tube after assembly may not be on the same axis, which increases the probability of the needle tip piercing into the inner cavity of the upper shell, and further causes the needle tip burr, the needle tip dull, and even the needle tip barb, thereby intensifying the pain when puncturing the patient. UTILITY MODEL CONTENT
[0003] The utility model solves the technical problem of the prior art, and provides a needle tube assembly fixture which is reasonable in design, simple in structure, accurate in positioning, safe and practical, easy to operate, low in cost, and capable of effectively avoiding needle tip injury.
[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:
[0005] A needle tube assembly fixture capable of avoiding needle tip injury, characterized in that it comprises an upper shell clamping piece, a needle tube clamping piece and a horizontal sliding rail, the upper shell clamping piece and the needle tube clamping piece are installed side by side on the horizontal sliding rail along the axis direction of the horizontal sliding rail, the upper shell clamping piece is in sliding connection with the horizontal sliding rail, the needle tube clamping piece is fixed at one end of the horizontal sliding rail, and a needle tube guide seat is installed on the horizontal sliding rail between the upper shell clamping piece and the needle tube clamping piece.
[0006] The upper shell clamping piece comprises an upper shell sliding seat, the bottom of the upper shell sliding seat is provided with a first sliding groove matched with the horizontal sliding rail, and the top of the upper shell sliding seat is provided with an upper shell positioning groove used for placing the upper shell, the shape of the upper shell positioning groove is consistent with the shape of the upper shell.
[0007] The needle tube clamping piece comprises a needle tube fixing seat, the top of the needle tube fixing seat is provided with a needle seat positioning groove matched with the upper needle seat of the needle tube, the shape of the needle seat positioning groove is consistent with the shape of the upper needle seat of the needle tube, and the needle seat positioning groove and the upper shell positioning groove are coaxially arranged.
[0008] The needle tube guide seat is provided with a seat body, the bottom of the seat body is provided with a second sliding groove matched with the horizontal sliding rail, the top of the seat body is provided with a needle groove used for supporting the upper needle body of the needle tube, the needle groove is coaxially arranged with the inner hole of the upper shell, the length of the needle groove is less than the length of the upper needle body of the needle tube, and the head of the upper needle body of the needle tube is suspended.
[0009] The technical problems solved by the utility model also can be realized through the following technical scheme, the needle pipe guide seat bottom opposite upper shell sliding seat one side is equipped with the extension platform, upper shell sliding seat bottom is equipped with the recess with extension platform sliding joint, the length of extension platform is less than the length of needle body suspension.
[0010] The technical problems solved by the utility model also can be realized through the following technical scheme, the upper shell positioning groove opposite needle pipe guide seat one end is equipped with the guide groove for guiding needle body to insert to the center of upper shell inner hole, and the depth of guide groove is less than the depth of needle groove.
[0011] The technical problems solved by the utility model also can be realized through the following technical scheme, the depth of upper shell positioning groove is equal to or less than half of the height of upper shell.
[0012] The technical problems solved by the utility model also can be realized through the following technical scheme, the depth of needle groove is greater than the radius of needle body on needle pipe and is less than the diameter of needle body.
[0013] Compared with the prior art, the utility model discloses through being equipped with upper shell clamp piece, needle pipe clamp piece, horizontal slide rail and needle pipe guide seat, when the assembly of needle pipe and upper shell, makes needle body and inner hole can be quickly and accurately aligned, realizes the quick butt joint of needle body and inner hole, improves the speed and efficiency of needle pipe and upper shell assembly, and upper shell sliding seat and needle pipe guide seat can move along the slide rail, is suitable for the assembly of needle pipe of different lengths. ACCURACY
[0014] Figure 1 It is the structure diagram of the needle pipe assembly fixture of the utility model.
[0015] In the drawing, 1 is upper shell sliding seat, 2 is upper shell positioning groove, 3 is horizontal slide rail, 4 is extension platform, 5 is needle pipe guide seat, 6 is needle pipe fixed seat, 7 is upper shell, 8 is needle body, 9 is needle seat, 10 is inner hole, 11 is guide groove. CONCRETE IMPLEMENTATION
[0016] The technical scheme in the utility model embodiment will be clearly and completely described below in conjunction with the drawings in the utility model embodiment, and obviously, the described embodiment is only a part of the embodiment of the utility model, not all the embodiment.
[0017] In the description of the utility model, it is understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.
[0018] Referring to Figure 1 A needle tube assembly clamp capable of avoiding needle tip injury, comprising an upper shell clamping piece, a needle tube clamping piece and a horizontal sliding rail, the upper shell clamping piece and the needle tube clamping piece are installed side by side on the horizontal sliding rail along the axis direction of the horizontal sliding rail, the upper shell clamping piece is in sliding connection with the horizontal sliding rail 3, the needle tube clamping piece is fixed at one end of the horizontal sliding rail 3, and a needle tube guide seat 5 is installed on the horizontal sliding rail 3 between the upper shell clamping piece and the needle tube clamping piece;
[0019] The upper shell clamping piece comprises an upper shell sliding seat 1, the bottom of the upper shell sliding seat 1 is provided with a first sliding groove matched with the horizontal sliding rail, and the top of the upper shell sliding seat 1 is provided with an upper shell positioning groove 2 used for placing the upper shell; the shape of the upper shell positioning groove 2 is consistent with that of the upper shell 7, and the upper shell 7 is horizontally laid in the upper shell positioning groove; and the depth of the upper shell positioning groove 2 is equal to or less than half the height of the upper shell 7.
[0020] The needle tube clamping piece comprises a needle tube fixing seat 6, the top of the needle tube fixing seat 6 is provided with a needle seat positioning groove matched with the needle tube upper needle seat 9, the shape of the needle seat positioning groove is consistent with that of the needle tube upper needle seat 9, and the needle seat positioning groove is coaxially arranged with the upper shell positioning groove 2,
[0021] The needle tube guide seat 5 is provided with a seat body, the bottom of the seat body is provided with a second sliding groove matched with the horizontal sliding rail, and the top of the seat body is provided with a needle groove used for supporting the needle tube upper needle body 8; the needle groove is coaxially arranged with the inner hole 10 of the upper shell 7, the length of the needle groove is less than that of the needle tube upper needle body, the head of the needle tube upper needle body 8 is suspended, the depth of the needle groove is H4, and H4 satisfies: needle body radius < H4 < needle body diameter; if the needle body is upwardly tilted, the needle body is pressed by hand during assembly, and the radius of H4 is matched with the outer diameter of the needle body.
[0022] The bottom of the needle tube guide seat 5 opposite to one side of the upper shell sliding seat 1 is provided with an extension table 4, and the bottom of the upper shell sliding seat 1 is provided with a recess in sliding clamping connection with the extension table 4; the length of the extension table 4 is less than the length of the needle body in suspension, and is at least less than the depth of the needle body inserted into the upper shell; and the extension table 4 plays a limiting role in cooperation of the upper shell sliding seat 1 and the needle tube guide seat 5.
[0023] The guiding groove 11 opposite to one end of the needle tube guiding seat 5 is provided with a guiding groove 11 for guiding the needle body 8 to be inserted into the center of the inner hole 10 of the upper shell 7, the depth of the guiding groove 11 is less than the depth of the needle groove, the height of the top of the guiding groove 11 from the top of the horizontal slide rail 3 is recorded as H1, the height of the top of the needle groove from the top of the horizontal slide rail 3 is recorded as H3, and the size of H1 is slightly less than H3, so that the probability of the needle tip pricking the upper shell can be reduced.
[0024] The needle tube assembly fixture for avoiding needle tip injury has the following characteristics: the inner cavity shape of the upper shell sliding seat 1 matches the outer shape of the upper shell 7, and the gap fit is adopted in the radial direction of the two, so that the displacement of the upper shell in the radial direction is avoided and the upper shell is conveniently placed into the fixing seat; the inner cavity shape (excluding the L length range shown in the figure) of the needle tube fixing seat 6 matches the outer shape of the needle tube needle seat, and the gap fit is adopted in the radial direction of the two, so that the displacement of the needle seat in the radial direction is avoided and the base is conveniently placed into the fixing seat.
[0025] The working process of the needle tube assembly fixture for avoiding needle tip injury is as follows: the needle seat 9 is placed in the needle seat groove of the needle seat fixing seat 6, at the same time, the needle body is placed in the needle groove of the needle tube guiding seat 5, the needle body 8 is partially suspended, the upper shell 7 is placed in the upper shell positioning groove 2 of the upper shell sliding seat 1, one hand pushes the upper shell sliding seat 1 to the needle tube guiding seat 5, at the same time, the other hand presses the needle body 8 in the needle groove, so that the needle body 8 is guaranteed on the same axis with the inner hole 10, when the upper shell sliding seat 1 and the needle tube guiding seat 5 are close to the extension table 4 and the recess, the needle body 8 is inserted into the inner hole 10, the assembly of the needle tube and the upper shell is completed, the assembly is fast, and the needle body is better protected.
[0026] The above is only a preferred specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the technical field according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model can make equivalent replacement or change, and all should be covered in the protection scope of the utility model.
Claims
1. A needle tube assembly jig for avoiding needle tip damage, characterized by, The device comprises an upper shell clamp, a needle tube clamp and a horizontal slide rail, the upper shell clamp and the needle tube clamp are installed side by side along the axis of the horizontal slide rail, the upper shell clamp is in sliding connection with the horizontal slide rail, the needle tube clamp is fixed at one end of the horizontal slide rail, and a needle tube guide seat is installed on the horizontal slide rail between the upper shell clamp and the needle tube clamp; The upper shell clamp comprises an upper shell sliding seat, the bottom of the upper shell sliding seat is provided with a first sliding groove matched with the horizontal slide rail, and the top of the upper shell sliding seat is provided with an upper shell positioning groove for placing the upper shell, the shape of the upper shell positioning groove is matched with the shape of the upper shell; The needle tube clamp comprises a needle tube fixing seat, the top of the needle tube fixing seat is provided with a needle seat positioning groove matched with the upper needle seat of the needle tube, the shape of the needle seat positioning groove is matched with the shape of the upper needle seat of the needle tube, and the needle seat positioning groove is coaxially arranged with the upper shell positioning groove, The needle tube guide seat is provided with a seat body, the bottom of the seat body is provided with a second sliding groove matched with the horizontal slide rail, and the top of the seat body is provided with a needle groove for supporting the upper needle body of the needle tube, the needle groove is coaxially arranged with the inner hole of the upper shell, the length of the needle groove is less than the length of the upper needle body of the needle tube, and the head of the upper needle body of the needle tube is suspended.
2. The needle tube assembly jig for avoiding damage by a needle tip according to claim 1, wherein The bottom of the needle tube guide seat is provided with an extension table opposite to one side of the upper shell sliding seat, the bottom of the upper shell sliding seat is provided with a recess in sliding connection with the extension table, and the length of the extension table is less than the length of the needle body in suspension.
3. The needle tube assembly jig of claim 1, wherein The upper shell positioning groove is provided with a guide groove at one end opposite to the needle tube guide seat, the guide groove is used for guiding the needle body to be inserted into the center of the inner hole of the upper shell, and the depth of the guide groove is less than the depth of the needle groove.
4. The needle tube assembly jig of claim 1, wherein The depth of the upper shell positioning groove is equal to or less than half of the height of the upper shell.
5. The needle tube assembly jig of claim 1, wherein The depth of the needle groove is greater than the radius of the upper needle body of the needle tube and less than the diameter of the needle body.