A percutaneous lung puncture chest fixing and positioning device
By using a combination of plastic plates and elastic bands with Velcro for fixation, and utilizing the elastic plates and arc blocks to form a positioning ring, the problem of needle wobbling is solved, achieving stable fixation and positioning of the needle and improving the reliability of the examination.
Patent Information
- Application Number
- CN202520512174.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-21
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-03-21
AI Technical Summary
In existing technologies, the unstable fixation of the puncture needle due to the patient's body movement and the oscillation of the puncture needle due to poor adhesive tape adhesion affect the examination results.
The method uses a combination of plastic sheet and elastic band with Velcro for fixation. Through holes and fixing components are set in the plastic sheet, and a positioning ring is formed by the elastic plate and arc block. The puncture needle is clamped and fixed by elastic protrusions and ribs.
This method achieves stable fixation and positioning of the puncture needle, avoiding shaking caused by loose adhesive tape and improving the reliability of the examination.
Smart Images

Figure CN224671572U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical device technology, specifically a percutaneous lung puncture chest fixation and positioning device. Background Technology
[0002] The purpose of thoracentesis is to clarify the diagnosis and relieve pressure on internal organs. The extracted pleural fluid is sent for testing as needed based on the patient's condition. After thoracentesis, the needle remains lodged in the skin and flesh. Any movement of the patient's body will cause the needle to wobble. While adhesive tape is currently used to secure the needle, it tends to separate from the skin over time due to insufficient adhesion, failing to meet the standard for proper needle fixation and posing necessary problems for the examination. Utility Model Content
[0003] (a) Technical problems to be solved
[0004] To address the shortcomings of existing technologies, this invention provides a percutaneous lung puncture chest fixation and positioning device, which has the advantage of convenient fixation and positioning of the puncture needle and solves the aforementioned problems.
[0005] (II) Technical Solution
[0006] To achieve the aforementioned purpose of convenient fixation and positioning of the puncture needle, this utility model provides the following technical solution: a percutaneous lung puncture chest fixation and positioning device, comprising a plastic plate, both ends of which are fixedly installed with elastic bands, the end of the elastic band away from the plastic plate being detachably installed via Velcro, the outer surface of the plastic plate having a through hole, the inner surface of the plastic plate being fixedly installed with adhesive tape outside the through hole, the inner wall of the through hole being fixedly installed with a fixing component, and the puncture needle being inserted into the inner side of the fixing component.
[0007] Preferably, the fixing component includes four elastic plates, one end of each elastic plate is fixedly installed to the inner wall of the through hole, the other end of each elastic plate is fixedly installed with an arc block, the side of the arc block is fixedly installed with an elastic protrusion, and the side of the elastic protrusion is fixedly installed with a protruding rib.
[0008] Preferably, the elastic plate is inclined at 5°-10°.
[0009] Preferably, the four arc blocks are combined to form a positioning ring.
[0010] Preferably, each of the arc blocks has three elastic protrusions arranged at equal intervals, and the arc blocks are tilted inward by 1°-5°.
[0011] (III) Beneficial Effects
[0012] Compared with the prior art, this utility model provides a percutaneous lung puncture chest fixation and positioning device, which has the following beneficial effects:
[0013] This percutaneous lung puncture chest fixation and positioning device places the through hole of a plastic plate at the patient's chest puncture site, wraps an elastic band around the patient's body and secures it with Velcro, then pre-inserts the puncture needle into the fixation assembly, and then slowly pushes the puncture needle into the chest cavity. The elastic plate controls multiple arc blocks to move closer together and form a positioning ring, thereby positioning the puncture needle. The elastic protrusions on the arc blocks also press against the outer wall of the puncture needle, thereby clamping and fixing the puncture needle, thus achieving quick fixation and positioning of the puncture needle. Attached Figure Description
[0014] Figure 1 This is a frontal three-dimensional structural diagram of the present invention;
[0015] Figure 2 This is a three-dimensional structural diagram of the back of this utility model;
[0016] Figure 3 This is a schematic diagram of the structure of the fixing component and the puncture needle of this utility model;
[0017] Figure 4 This is an exploded structural diagram of the fixing component of this utility model;
[0018] Figure 5 This is a schematic diagram of the structure of the arc block and the elastic protrusion of this utility model.
[0019] In the diagram: 1. Plastic sheet; 2. Elastic band; 3. Velcro; 4. Through hole; 5. Adhesive; 6. Fixing component; 7. Puncture needle; 61. Elastic plate; 62. Arc block; 63. Elastic protrusion; 64. Protruding rib. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] Please see Figure 1-3 A percutaneous lung puncture chest fixation and positioning device includes a plastic plate 1, with elastic bands 2 fixedly installed at both ends of the plastic plate 1. The end of the elastic band 2 away from the plastic plate 1 is detachably installed by Velcro 3. The plastic plate 1 is placed at the thoracentesis site, the elastic band 2 is wrapped around the patient, and finally fixed with Velcro 3.
[0022] Please see Figure 1-3 A through hole 4 is provided on the outer surface of the plastic plate 1. An adhesive sticker 5 is fixedly installed on the inner surface of the plastic plate 1 and outside the through hole 4. The adhesive sticker 5 can position the plastic plate 1 at the puncture site. A fixing component 6 is fixedly installed on the inner wall of the through hole 4. A puncture needle 7 is inserted into the inner side of the fixing component 6. The fixing component 6 is used to position and clamp the puncture needle 7 to prevent the puncture needle 7 from shaking.
[0023] Please see Figure 4-5 The fixing component 6 includes four elastic plates 61. One end of the elastic plate 61 is fixedly installed to the inner wall of the through hole 4. The elastic plate 61 is inclined at 5°-10° and tilted outward. An arc block 62 is fixedly installed at the other end of the elastic plate 61. The elastic plate 61 controls the four arc blocks 62 to move towards the center. The four arc blocks 62 are combined to form a positioning ring, and the puncture needle 7 can be inserted into the positioning ring.
[0024] Please see Figure 4-5 Elastic protrusions 63 are fixedly installed on the side of the arc block 62. There are three elastic protrusions 63 on each arc block 62, which are arranged at equal intervals. The arc block 62 is inclined inward at 1°-5°. A rib 64 is fixedly installed on the side of the elastic protrusion 63. The elastic protrusion 63 is inclined inward, which can achieve clamping and fixing of the puncture needle 7. The rib 64 contacts the outer wall of the puncture needle 7 to increase the friction and fastening force.
[0025] Working principle: When in use, place the through hole 4 of the plastic plate 1 at the puncture site of the patient's chest, wrap the elastic band 2 around the patient's body and fix it with Velcro 3, then insert the puncture needle 7 into the fixing component 6 before slowly pushing the puncture needle 7 into the chest cavity.
[0026] The elastic plate 61 controls multiple arc blocks 62 to move closer together and form a positioning ring, thereby positioning the puncture needle 7; the elastic protrusions 63 on the arc blocks 62 also press against the outer wall of the puncture needle 7, thereby clamping and fixing the puncture needle 7, thus realizing the quick fixing and positioning of the puncture needle.
[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A percutaneous lung puncture chest fixation and positioning device, comprising a plastic plate (1), characterized in that: Both ends of the plastic plate (1) are fixedly installed with elastic bands (2). The end of the elastic band (2) away from the plastic plate (1) can be detached and installed by Velcro (3). The outer surface of the plastic plate (1) is provided with a through hole (4). The inner surface of the plastic plate (1) and the outside of the through hole (4) are fixedly installed with adhesive tape (5). The inner wall of the through hole (4) is fixedly installed with a fixing component (6). The inner side of the fixing component (6) is inserted with a puncture needle (7). The fixing component (6) includes four elastic plates (61). One end of the elastic plate (61) is fixedly installed to the inner wall of the through hole (4). An arc block (62) is fixedly installed at the other end of the elastic plate (61). An elastic protrusion (63) is fixedly installed on the side of the arc block (62). A rib (64) is fixedly installed on the side of the elastic protrusion (63).
2. The percutaneous lung puncture chest fixation and positioning device according to claim 1, characterized in that: The elastic plate (61) is inclined at 5°-10°.
3. The percutaneous lung puncture chest fixation and positioning device according to claim 1, characterized in that: The four arc blocks (62) are combined to form a positioning ring.
4. The percutaneous lung puncture chest fixation and positioning device according to claim 1, characterized in that: Each of the arc blocks (62) has three elastic protrusions (63) arranged at equal intervals, and the arc blocks (62) are tilted inward by 1°-5°.