Anti-fracture protection device for remaining needle

By designing an anti-breakage protection device for the indwelling needle and using components such as a fixed clamp and a protective cover, the problem of the indwelling needle breaking due to external force during use is solved, the stability and safety of the indwelling needle are achieved, and the patient's treatment experience is improved.

CN223380900UActive Publication Date: 2025-09-26THE FIRST AFFILIATED HOSPITAL OF ANHUI MEDICAL UNIV
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Patent Information

Application Number
CN202422711534.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-07
Publication Date
2025-09-26
Estimated Expiration
2034-11-07

AI Technical Summary

Technical Problem

Indwelling needles are easily broken by external forces during use, leading to complications such as infusion interruption and vascular damage. Existing technologies lack effective protective measures.

Method used

A device for preventing the indwelling needle from breaking is designed, which includes a protection mechanism and an adjustment mechanism. By fixing components such as a clamp block, an adjustment button and a protective cover, the stability and safety of the indwelling needle during infusion is ensured to prevent the catheter from breaking.

Benefits of technology

It improves the safety and durability of the indwelling needle, reduces the risk of catheter breakage, and enhances operational flexibility and patient comfort.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides an anti-fracture protection device for a remaining needle, which belongs to the technical field of medical instruments and comprises a protection mechanism, the protection mechanism comprises an infusion cavity, the side wall of the infusion cavity is communicated with a catheter and an adjusting mechanism, the adjusting mechanism comprises an adjusting box, and the inner wall of the adjusting box is connected with a turntable through a bearing. According to the utility model, the fixed clamping block and the movable clamping block are matched for use, so that the stability and the safety of the indwelling needle in the infusion process are ensured, and the catheter is prevented from being broken due to external force; by arranging an adjusting button and a lead screw, the clamping force is adjustable, and the operation flexibility is improved; due to the protection cover, the joint of the catheter and the infusion cavity is effectively protected, and accidental injury and pollution are avoided; due to the arrangement of the twisting rod and the binding belt, medical staff can conveniently and quickly fix and loosen the binding belt, and the working efficiency is improved; the use safety and durability of the indwelling needle are improved, and more reliable and comfortable medical experience is provided for a patient.
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Description

Technical Field

[0001] The utility model belongs to the technical field of medical devices, and in particular relates to an anti-fracture protection device for an indwelling needle. Background Art

[0002] An indwelling catheter is a medical device mainly used to place an infusion tube in the patient's blood vessels for a long time. Its background technology originated in the 1970s. With the continuous development of medical technology, indwelling catheters have been continuously improved in terms of materials, design and safety. They have been widely used in clinical infusion, blood transfusion, drug treatment and blood sample collection, providing patients with convenient and efficient medical services.

[0003] During the use of an indwelling needle, the catheter may occasionally break at the connection. This may be due to external impact or twisting of the connection part or improper operation during nursing. The broken catheter will not only cause the infusion to be interrupted, but may also cause foreign matter to remain in the blood vessels, increase the risk of infection, and even cause complications such as vascular damage. Therefore, an anti-breakage protection device for indwelling needles has been developed. Utility Model Content

[0004] The purpose of the present invention is to provide an anti-fracture protection device for an indwelling needle, aiming to solve the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] An anti-fracture protection device for an indwelling needle, comprising:

[0007] The protection mechanism includes an infusion cavity, and a catheter is connected to the side wall of the infusion cavity;

[0008] The adjusting mechanism includes an adjusting box, and a rotating disk is connected to the inner wall of the adjusting box through a bearing.

[0009] As a preferred solution of the present invention, the protection mechanism also includes a fixed clamp block movably connected to the side wall of the infusion chamber, a fixed rod is fixedly installed on the side wall of the fixed clamp block, the bottom of the fixed rod is fixedly connected to a fixed seat, and a clamping box is fixedly installed on the top of the fixed seat.

[0010] As a preferred solution of the present invention, an adjusting button is connected to the inner wall of the clamping box through a bearing, a screw rod is connected to the inner wall of the adjusting button through a thread, a movable clamp is fixedly installed on the end of the screw rod, and a slot is provided on the outer surface of the fixed seat.

[0011] As a preferred solution of the present invention, a rounded corner tenon is movably connected to the inner wall of the slot, a protective cover is fixedly installed on the top of the rounded corner tenon, and connectors are fixedly installed on both ends of the fixing seat.

[0012] As a preferred solution of the present invention, the adjustment mechanism also includes a twisted rod symmetrically arranged and fixedly installed on the top of the turntable, a strap is movably connected to the side wall of the twisted rod, a connecting plate is fixedly installed on the top of the twisted rod, and a lock is fixedly installed on the top of the connecting plate.

[0013] As a preferred solution of the present invention, a clamping block is movably connected to the side wall of the lock, an adjusting rod is fixedly installed on the top of the clamping block, and an adjusting nut is fixedly installed on the top of the adjusting rod.

[0014] As a preferred solution of the present invention, an auxiliary bearing is sleeved on the outer surface of the adjustment rod, a top spring is fixedly installed on the top of the auxiliary bearing, and the other end of the top spring is fixedly connected to the inner wall of the adjustment box.

[0015] Compared with the existing technology, the beneficial effects of the present invention are: the fixed clamping block and the movable clamping block are used in combination to ensure the stability and safety of the indwelling needle during the infusion process, and prevent the catheter from breaking due to external force; the setting of the adjustment button and the screw rod makes the clamping force adjustable, which improves the flexibility of operation; the presence of the protective cover effectively protects the connection between the catheter and the infusion cavity, avoiding accidental damage and contamination; the configuration of the twist rod and the strap facilitates medical staff to quickly fix and loosen the strap, thereby improving work efficiency; the safety and durability of the indwelling needle are improved, providing patients with a more reliable and comfortable medical experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without inventive work. Among them:

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the connection between the protective cover and the rounded corner tenon of the present invention;

[0019] Figure 3 This is a schematic diagram of the connection between the fixing rod and the fixing seat of the utility model;

[0020] Figure 4 This is a schematic diagram of the connection between the twist rod and the turntable of the utility model.

[0021] In the figure: 100, protection mechanism; 101, infusion chamber; 102, catheter; 103, rounded tenon; 104, protective cover; 105, fixing seat; 106, slot; 107, connector; 108, fixing rod; 109, fixed clamp; 110, movable clamp; 111, clamping box; 112, adjusting button; 113, screw rod; 200, adjusting mechanism; 201, adjusting box; 202, turntable; 203, connecting plate; 204, twist rod; 205, locking piece; 206, clamp; 207, top spring; 208, auxiliary bearing; 209, adjusting rod; 210, adjusting nut; 211, binding strap. DETAILED DESCRIPTION

[0022] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0023] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0024] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0025] Example

[0026] Reference Figures 1 to 4 , is an embodiment of the present utility model, which provides an anti-fracture protection device for an indwelling needle, comprising:

[0027] The protection mechanism 100 includes an infusion cavity 101 , and a catheter 102 is connected to the side wall of the infusion cavity 101 ;

[0028] The adjustment mechanism 200 includes an adjustment box 201 , and a rotating disk 202 is connected to the inner wall of the adjustment box 201 via a bearing.

[0029] Specifically, the protection mechanism 100 also includes a fixed clamping block 109 movably connected to the side wall of the infusion chamber 101, a fixed rod 108 is fixedly installed on the side wall of the fixed clamping block 109, the bottom of the fixed rod 108 is fixedly connected to the fixed seat 105, a clamping box 111 is fixedly installed on the top of the fixed seat 105, an adjusting button 112 is connected to the inner wall of the clamping box 111 through a bearing, a screw rod 113 is threadedly connected to the inner wall of the adjusting button 112, a movable clamping block 110 is fixedly installed on the end of the screw rod 113, and a card slot 106 is provided on the outer surface of the fixed seat 105.

[0030] Furthermore, a rounded corner tenon 103 is movably connected to the inner wall of the slot 106 , a protective cover 104 is fixedly installed on the top of the rounded corner tenon 103 , and connectors 107 are fixedly installed on both ends of the fixing seat 105 .

[0031] Preferably, the adjustment mechanism 200 also includes a twisted rod 204 symmetrically fixedly mounted on the top of the turntable 202, a strap 211 movably connected to the side wall of the twisted rod 204, a connecting plate 203 fixedly mounted on the top of the twisted rod 204, and a lock 205 fixedly mounted on the top of the connecting plate 203.

[0032] It should be noted that a block 206 is movably connected to the side wall of the lock 205, an adjustment rod 209 is fixedly installed on the top of the adjustment rod 209, an adjusting nut 210 is fixedly installed on the top of the adjustment rod 209, an auxiliary bearing 208 is sleeved on the outer surface of the adjustment rod 209, a top spring 207 is fixedly installed on the top of the auxiliary bearing 208, and the other end of the top spring 207 is fixedly connected to the inner wall of the adjustment box 201.

[0033] When in use, before inserting the indwelling needle, tie the bandage 211 to the indwelling position of the patient, turn the adjusting nut to drive the adjusting rod 209 to rotate, the adjusting rod 209 drives the clamping block 206 to rotate, the clamping block 206 drives the connecting plate 203, the connecting plate 203 drives the twisted rod 204 to do a circular motion, rewind the bandage 211, and place the indwelling needle on the inner wall of the fixed clamping block 109, turn the adjusting knob, the adjusting knob drives the screw rod 113 to move back and forth, the screw rod 113 pushes the movable clamping block 110 to move, clamping the indwelling needle, and inserting the indwelling needle. After insertion, the protective cover 104 uses its own elastic deformation to clamp the block 206 into the card slot 106. The protective cover 104 covers the connection between the catheter 102 and the infusion cavity 101. When removing the indwelling needle, remove the protective cover 104, release the movable block 206, remove the needle, pull the adjusting nut, the adjusting nut drives the connecting rod to move up and down, release the block 206, and at the same time pull the strap 211 to remove the adjustment mechanism 200, loosen the adjusting nut top spring 207 to push the block 206 back to its original position, and re-limit the lock 205.

[0034] In summary, through the coordinated use of the twist rod 204 and the adjusting nut, the orderly winding and releasing of the strap 211 is achieved, the stability of the fixation of the indwelling needle is improved, and the risk of the catheter 102 breaking due to external force is reduced; on the other hand, the elastic deformation design of the protective cover 104 can firmly cover the connection between the catheter 102 and the infusion cavity 101, further protecting this fragile area, avoiding breakage and contamination, thereby ensuring the patient's treatment safety and the reliability of the indwelling needle.

[0035] It is important to note that the construction and arrangement of the present application shown in a number of different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, colors, directional changes, etc.) without departing substantially from the novel teachings and advantages of the subject matter described in this application. For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature or number or position of the discrete elements may be altered or changed. Therefore, all such modifications are intended to be included within the scope of the present invention. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "means plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also an equivalent structure. Without departing from the scope of the present invention, other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0036] Additionally, in order to provide a concise description of example embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0037] It will be appreciated that in the development of any actual embodiment, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will, for those of ordinary skill having the benefit of this disclosure, be a routine undertaking of design, fabrication, and production without undue experimentation.

[0038] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, and all of these should be included in the scope of the claims of the present invention.

Claims

1. A device for protecting an indwelling needle from breakage, characterized in that: include, The protection mechanism (100) comprises an infusion cavity (101), wherein a catheter (102) is connected to the side wall of the infusion cavity (101); The regulating mechanism (200) comprises an regulating box (201), wherein a rotating disk (202) is connected to the inner wall of the regulating box (201) via a bearing.

2. The device for protecting an indwelling needle from breakage according to claim 1, characterized in that: The protection mechanism (100) further comprises a fixed clamping block (109) movably connected to the side wall of the infusion cavity (101), a fixed rod (108) being fixedly mounted on the side wall of the fixed clamping block (109), a fixed seat (105) being fixedly connected to the bottom of the fixed rod (108), and a clamping box (111) being fixedly mounted on the top of the fixed seat (105).

3. The device for protecting an indwelling needle from breakage according to claim 2, characterized in that: An adjusting button (112) is connected to the inner wall of the clamping box (111) via a bearing, a screw rod (113) is connected to the inner wall of the adjusting button (112) via a thread, a movable clamping block (110) is fixedly mounted on the end of the screw rod (113), and a card slot (106) is provided on the outer surface of the fixing seat (105).

4. The device for protecting an indwelling needle from breakage according to claim 3, characterized in that: A rounded corner tenon (103) is movably connected to the inner wall of the slot (106), a protective cover (104) is fixedly installed on the top of the rounded corner tenon (103), and connectors (107) are fixedly installed at both ends of the fixing seat (105).

5. The indwelling needle anti-fracture protection device according to claim 4, characterized in that: The adjustment mechanism (200) further comprises a twisted rod (204) symmetrically arranged and fixedly mounted on the top of the turntable (202); a strap (211) is movably connected to the side wall of the twisted rod (204); a connecting plate (203) is fixedly mounted on the top of the twisted rod (204); and a locking member (205) is fixedly mounted on the top of the connecting plate (203).

6. The device for protecting an indwelling needle from breakage according to claim 5, characterized in that: A clamping block (206) is movably connected to the side wall of the locking member (205), an adjusting rod (209) is fixedly installed on the top of the clamping block (206), and an adjusting nut (210) is fixedly installed on the top of the adjusting rod (209).

7. The device for protecting an indwelling needle from breakage according to claim 6, characterized in that: The outer surface of the adjustment rod (209) is sleeved with an auxiliary bearing (208), the top of the auxiliary bearing (208) is fixedly mounted with a top spring (207), and the other end of the top spring (207) is fixedly connected to the inner wall of the adjustment box (201).