Puncture needle with adhesion function

Abstract

The utility model discloses a puncture needle with a sticking function, which relates to the technical field of puncture needles and comprises a puncture needle fixing component, a puncture seat and an injection component, the injection component is arranged on the inner side of the puncture needle fixing component, the puncture seat is arranged on the outer side of the puncture needle fixing component, and a detachable structure is arranged between the puncture needle and a threaded ring. The detachable puncture needle has the advantages that in the using process, when the puncture needle is bent or under other abnormal conditions, the puncture needle is pulled out of the fixing sleeve and replaced with a new puncture needle, the whole set of puncture equipment does not need to be replaced, and therefore the using cost is reduced, and the using efficiency is improved. Furthermore, the puncture seat and the fixing sleeve can be prevented from being separated in the operation process through the safe limiting effect of a limiting block and a limiting groove on the puncture seat and the fixing sleeve, so that the safety of the device during use is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of puncture needles, in particular to a puncture needle with an adhesive function. Background Art

[0002] The puncture needle is a medical device used for tissue sampling and injection treatment of various organs such as the kidney, liver, lung, breast, thyroid, prostate, pancreas, testicle, uterus, ovary, and body surface during minimally invasive surgery. It is divided into disposable puncture needles and reusable puncture needles according to the number of uses; biopsy puncture needles, injection puncture needles, and drainage puncture needles according to the application function; cannula puncture needles, single puncture needles, and solid puncture needles according to the needle tube structure; and puncture suction needles, puncture hook needles, forked puncture needles, and rotary cutting puncture needles according to the needle tip structure.

[0003] The existing patent (application number: 202123187146.6) proposes a puncture needle with a sticky function. Medical staff rotate the adjusting bolt to adjust the distance between the indwelling needle and the strap. By setting a friction pad and cooperating with the first arc block and the second arc block, the inclination angle of the puncture needle body and the indwelling needle can be easily adjusted. By setting a sub-Velcro and a wooden Velcro, the strap can be conveniently fixed on the arms of patients of different body shapes, thereby facilitating the fixation of the puncture needle body and the indwelling needle, ensuring the stability of the puncture needle body and the indwelling needle. The coordinated use of the above structures facilitates the stable placement of the puncture needle body in the artery and prevents the puncture needle body from puncturing the artery due to accidental shaking.

[0004] There is no safety positioning device between the injection assembly and the puncture seat, so the puncture needle and the puncture seat are easily misaligned during skin puncture, which poses certain safety hazards to the operation. Therefore, we propose a puncture needle with a sticking function to solve the above problem. Utility Model Content

[0005] The utility model provides a puncture needle with an adhesive function, which solves the technical problems that the existing detachable puncture needle is easy to fall off and the fixing of the puncture needle is inconvenient.

[0006] In order to solve the above technical problems, the utility model provides a puncture needle with an adhesive function, comprising a puncture needle fixing component, a puncture seat and an injection component, wherein the injection component is arranged on the inner side of the puncture needle fixing component, the puncture seat is arranged on the outer side of the puncture needle fixing component, and the puncture seat is provided with an adhesive component;

[0007] The puncture needle fixing assembly comprises a fixing sleeve, a threaded ring is arranged at the bottom of the fixing sleeve, operating handles are arranged at both sides of the bottom of the fixing sleeve, and a limit block is arranged on the fixing sleeve;

[0008] The injection assembly comprises a limiting disk, a puncture needle is arranged on the top of the limiting disk, a limiting ring is arranged on the top of the limiting disk and outside the puncture needle, and a threaded sleeve is rotatably connected to the limiting ring.

[0009] Preferably, the puncture needle is provided with a strip-shaped limiting groove, and there are four strip-shaped limiting grooves in total. The four strip-shaped limiting grooves are distributed in a ring shape, and the angles between two adjacent strip-shaped limiting grooves are equal.

[0010] The above technical solution is adopted: the puncture needle is limited by the mutual engagement between the limit bar and the limit groove, so as to prevent the puncture needle from rotating and displacing in the puncture sleeve during use.

[0011] Preferably, the top of the puncture seat is fixedly connected to a puncture sleeve, the inner surface wall of the puncture seat is provided with a limiting groove, the limiting groove is an L-shaped structure, there are two limiting grooves in total, and the two limiting grooves are symmetrical to each other, and the limiting block is slidably connected to the limiting groove.

[0012] The above technical solution is adopted: a detachable structure is provided between the puncture seat and the fixed sleeve. During use, the fixed sleeve is inserted into the puncture seat and rotated to one side, so that the limit block slides to one side of the horizontal section of the limit groove, thereby limiting the puncture sleeve and preventing the puncture sleeve from moving up and down in the puncture seat during use.

[0013] Preferably, the adhesive component includes an adhesive tape, an expansion strip is provided on one side of the adhesive tape, an arc-shaped clamping ring is provided on the side of the adhesive tape close to the puncture sleeve, and adhesive patches are provided on both sides of the arc-shaped clamping ring of the adhesive tape.

[0014] The above technical solution is adopted: the adhesive component and the puncture sleeve are detachable structures. During use, the adhesive component can be pre-clipped onto the puncture sleeve. After the puncture needle pierces the skin, press the two sides of the adhesive tape to adhere and fix the skin through the adhesive patch.

[0015] Preferably, a limit strip is provided on the inner surface wall of the fixed sleeve, and there are four limit strips in total. The four limit strips are slidably connected to the four strip-shaped limit grooves, and the width of the limit strip is smaller than the width of the strip-shaped limit groove.

[0016] The above technical solution is adopted: the puncture needle is limited by the mutual engagement between the limit bar and the limit groove, so as to prevent the puncture needle from rotating and displacing in the puncture sleeve during use.

[0017] Preferably, the axial length of the needle tip of the puncture needle is 0.2cm-0.5cm, the cone angle of the needle tip of the puncture needle is 10°-20°, the needle shaft length of the puncture needle is 5cm-35cm, the puncture needle is made of any one of medical stainless steel, nickel-titanium alloy, and nickel-chromium alloy, and the specification of the puncture needle is 14G-22G.

[0018] Using the above technical solution: preferably 0.3cm-0.4cm, specific selection can be made according to needs. For example, for infants and children, a shorter puncture needle can be selected, and for patients with special body shapes such as obesity, a longer puncture needle can be selected.

[0019] Compared with the related art, the utility model has the following beneficial effects:

[0020] 1. In the utility model, the puncture needle and the threaded ring are detachable structures. The advantage of detachability is that during use, when the puncture needle is bent or other abnormal conditions occur, the threaded sleeve at the bottom of the puncture needle is rotated to separate it from the threaded ring, and the puncture needle can be pulled out of the fixed sleeve and replaced with a new one. There is no need to replace the entire set of puncture equipment, thereby reducing the cost of use. Furthermore, the puncture seat and the fixed sleeve can be safely limited by sliding the limit block and the limit groove, avoiding the separation of the puncture seat and the fixed sleeve during operation, thereby improving the safety of the device when in use.

[0021] 2. In the utility model, the adhesive component is used to quickly fix the puncture sleeve to the skin after the puncture is completed. During use, the adhesive component can be clamped on the puncture sleeve through the arc-shaped clamping ring in advance according to needs, or after the puncture is completed, the adhesive component can be clamped on the puncture sleeve, and the adhesive patch can be fixed to the skin by pressing both sides of the adhesive tape. During use, under the action of the expansion strip, the adhesive tape is slightly driven to expand outward to prevent the two adhesive patches from sticking to each other during operation and affecting subsequent operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of a puncture needle with a sticking function;

[0023] Figure 2 This is a disassembled diagram of a puncture needle with a sticky function;

[0024] Figure 3 It is a structural schematic diagram of an adhesive component in a puncture needle with an adhesive function;

[0025] Figure 4 It is a schematic diagram of the structure of an injection assembly in a puncture needle with an adhesive function;

[0026] Figure 5 This is a schematic diagram of the structure of a puncture seat in a puncture needle with an adhesive function;

[0027] Figure 6 The present invention is a schematic diagram of the structure of a puncture needle fixing component in a puncture needle with an adhesive function.

[0028] Numbers in the figure: 1. puncture needle fixing assembly; 11. fixing sleeve; 12. limit block; 13. threaded ring; 14. operating handle; 15. limit strip; 2. puncture seat; 21. limit groove; 22. puncture sleeve; 3. adhesive assembly; 31. adhesive tape; 32. arc-shaped clamping ring; 33. adhesive patch; 34. expansion strip; 4. injection assembly; 41. limit disk; 42. puncture needle; 43. limit ring; 44. threaded sleeve; 45. strip limit groove. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0030] Embodiment 1

[0031] like Figure 1 - Figure 6 As shown, a puncture needle with an adhesive function comprises a puncture needle fixing component 1, a puncture seat 2 and an injection component 4, wherein the injection component 4 is arranged on the inner side of the puncture needle fixing component 1, the puncture seat 2 is arranged on the outer side of the puncture needle fixing component 1, and an adhesive component 3 is arranged on the puncture seat 2;

[0032] The puncture needle fixing assembly 1 comprises a fixing sleeve 11, a threaded ring 13 is arranged at the bottom of the fixing sleeve 11, operating handles 14 are arranged at both sides of the bottom of the fixing sleeve 11, and a limiting block 12 is arranged on the fixing sleeve 11;

[0033] The injection assembly 4 includes a limiting plate 41 , a puncture needle 42 is arranged on the top of the limiting plate 41 , a limiting ring 43 is arranged on the top of the limiting plate 41 outside the puncture needle 42 , and a threaded sleeve 44 is rotatably connected to the limiting ring 43 .

[0034] The puncture needle 42 is provided with a strip-shaped limiting groove 45, and there are four strip-shaped limiting grooves 45 in total. The four strip-shaped limiting grooves 45 are distributed in a ring shape, and the angles between two adjacent strip-shaped limiting grooves 45 are equal. The limiting strip 15 and the limiting groove 21 are mutually engaged to limit the puncture needle 42 to prevent the puncture needle 42 from rotating and displacing in the puncture sleeve 22 during use. Furthermore, the puncture needle 42 can also reduce the contact area with the skin through the strip-shaped limiting groove 45 to reduce the resistance encountered during puncture.

[0035] Embodiment 2

[0036] like Figure 3 - Figure 6 As shown, the top of the puncture seat 2 is fixedly connected with a puncture sleeve 22, and the inner surface wall of the puncture seat 2 is provided with a limiting groove 21, the limiting groove 21 is an L-shaped structure, there are two limiting grooves 21, and the two limiting grooves 21 are symmetrical to each other, the limiting block 12 and the limiting groove 21 are slidably connected, and the puncture seat 2 and the fixed sleeve 11 are a detachable structure. During use, the fixed sleeve 11 is inserted into the puncture seat 2 and rotated to one side, so that the limiting block 12 slides to one side of the horizontal section of the limiting groove 21, and the puncture sleeve 22 is limited to prevent the puncture sleeve 22 from moving up and down in the puncture seat 2 during use.

[0037] The adhesive component 3 includes an adhesive tape 31, an expansion strip 34 is provided on one side of the adhesive tape 31, an arc-shaped clamping ring 32 is provided on the side of the adhesive tape 31 close to the puncture sleeve 22, and adhesive patches 33 are provided on both sides of the arc-shaped clamping ring 32 of the adhesive tape 31. The adhesive component 3 and the puncture sleeve 22 are detachable structures. During use, the adhesive component 3 can be pre-clamped on the puncture sleeve 22. After the puncture needle 42 penetrates the skin, press the two sides of the adhesive tape 31 to adhere and fix the skin through the adhesive patch 33, and further drive the adhesive tape 31 to expand slightly to both sides through the expansion strip 34 to avoid the two adhesive patches 33 being stuck together during operation.

[0038] The inner surface wall of the fixed sleeve 11 is provided with a limit strip 15, and there are four limit strips 15 in total. The four limit strips 15 are slidably connected to the four strip limit grooves 45. The width of the limit strip 15 is smaller than the width of the strip limit groove 45. The limit strip 15 and the strip limit groove 45 are mutually engaged to limit the puncture needle 42 to prevent the puncture needle 42 from rotating and displacing in the puncture sleeve 22 during use.

[0039] The axial length of the needle tip of the puncture needle 42 is 0.2cm-0.5cm, the cone angle of the needle tip of the puncture needle 42 is 10°-20°, the needle shaft length of the puncture needle 42 is 5cm-35cm, the puncture needle 42 is made of any one of medical stainless steel, nickel-titanium alloy, and nickel-chromium alloy, and the specification of the puncture needle 42 is 14G-22G, preferably 0.3cm-0.4cm, preferably 18G (18G means the outer diameter is 1.2mm). In the present utility model, "G" represents the outer diameter of the needle tube in foreign countries represented by Gauge. The conversion relationship between the diameter specification and the outer diameter of the needle tube calculated in mm is: Y=(24-X) / 5; wherein "Y" represents the outer diameter of the needle tube calculated in mm; "X" represents the specification of the outer diameter of the foreign needle tube expressed in Gauge, and the unit is "G". The length span of the needle rod of the puncture needle 42 provided by the utility model is relatively large, and specific selection can be made according to needs. For example, for infants and children, a shorter puncture needle 42 can be selected, and for patients with special body shapes such as obesity, a longer puncture needle 42 can be selected.

[0040] Working principle: Figure 1 - Figure 6 As shown, firstly, the instrument is disinfected for the first time. After the disinfection is completed, the limiting strip 15 is aligned with the strip limiting groove 45 and the puncture needle 42 is inserted from the bottom of the fixed sleeve 11, so that the threaded sleeve 44 fits with the threaded ring 13. After fitting, the threaded sleeve 44 is threadedly rotated to make it threadedly connected with the threaded ring 13, and the puncture needle 42 and the fixed sleeve 11 are limited. After the installation is completed, the fixed sleeve 11 is inserted into the puncture seat 2 and rotated to one side so that the limiting block 12 slides to one side of the horizontal end of the limiting groove 21, and the fixed sleeve 11 and the puncture needle are fixed. The puncture seat 2 is limited, the installation is completed, and the instrument is disinfected for the second time. After the disinfection is completed, the puncture needle 42 is inserted into the body through the operating handle 14. After the puncture is completed, the adhesive component 3 is clamped on the puncture sleeve 22 through the arc-shaped clamping ring 32 and the adhesive tapes 31 on both sides are pressed downward, so that the adhesive patch 33 adheres to the skin, which fixes the puncture needle 42. After the fixation is completed, the fixing sleeve 11 can be rotated in the opposite direction as needed to pull out the puncture needle 42. At this time, the puncture sleeve 22 is still inserted into the body, and subsequent operations can be completed through the bottom opening of the puncture seat 2.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A puncture needle with an adhesive function, characterized in that: The invention comprises a puncture needle fixing component (1), a puncture seat (2) and an injection component (4), wherein the injection component (4) is arranged on the inner side of the puncture needle fixing component (1), the puncture seat (2) is arranged on the outer side of the puncture needle fixing component (1), and an adhesive component (3) is arranged on the puncture seat (2); The puncture needle fixing assembly (1) comprises a fixing sleeve (11), a threaded ring (13) is arranged at the bottom of the fixing sleeve (11), operating handles (14) are arranged on both sides of the bottom of the fixing sleeve (11), and a limit block (12) is arranged on the fixing sleeve (11); The injection assembly (4) comprises a limiting plate (41), a puncture needle (42) is arranged on the top of the limiting plate (41), a limiting ring (43) is arranged on the top of the limiting plate (41) and located outside the puncture needle (42), and a threaded sleeve (44) is rotatably connected to the limiting ring (43).

2. The puncture needle with adhesive function according to claim 1, characterized in that: The puncture needle (42) is provided with a strip-shaped limiting groove (45), and there are four strip-shaped limiting grooves (45) in total. The four strip-shaped limiting grooves (45) are distributed in a ring shape, and the angles between two adjacent strip-shaped limiting grooves (45) are equal.

3. The puncture needle with adhesive function according to claim 1, characterized in that: The top of the puncture seat (2) is fixedly connected to a puncture sleeve (22), and the inner surface wall of the puncture seat (2) is provided with a limiting groove (21), the limiting groove (21) is an L-shaped structure, there are two limiting grooves (21) in total, and the two limiting grooves (21) are symmetrical to each other, and the limiting block (12) is slidably connected to the limiting groove (21).

4. The puncture needle with adhesive function according to claim 1, characterized in that: The adhesive component (3) comprises an adhesive tape (31), an expansion strip (34) is arranged on one side of the adhesive tape (31), an arc-shaped clamping ring (32) is arranged on the side of the adhesive tape (31) close to the puncture sleeve (22), and adhesive patches (33) are arranged on both sides of the adhesive tape (31) located on the arc-shaped clamping ring (32).

5. The puncture needle with adhesive function according to claim 2, characterized in that: The inner surface wall of the fixed sleeve (11) is provided with a limit strip (15), and a total of four limit strips (15) are provided. The four limit strips (15) are slidably connected to the four strip-shaped limit grooves (45), and the width of the limit strip (15) is smaller than the width of the strip-shaped limit groove (45).

6. The puncture needle with adhesive function according to claim 1, characterized in that: The axial length of the needle tip of the puncture needle (42) is 0.2 cm-0.5 cm, the cone angle of the needle tip of the puncture needle (42) is 10°-20°, the needle shaft length of the puncture needle (42) is 5 cm-35 cm, the puncture needle (42) is made of any one of medical stainless steel, nickel-titanium alloy, and nickel-chromium alloy, and the specification of the puncture needle (42) is 14G-22G.

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