A puncture angle adjustment membrane

By designing a flexible directional shield and adjusting the puncture angle of the puncture guide tube to the body membrane, the problems of inaccurate puncture sampling and patient discomfort were solved, achieving the effects of accurate sampling and comfortable treatment.

CN224269449UActive Publication Date: 2026-05-26THE FOURTH HOSPITAL OF HEBEI MEDICAL UNIVERSITY (HEBEI CANCER HOSPITAL)
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
THE FOURTH HOSPITAL OF HEBEI MEDICAL UNIVERSITY (HEBEI CANCER HOSPITAL)
Filing Date
2025-04-09
Publication Date
2026-05-26

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Abstract

This utility model discloses a puncture angle adjustment membrane, including an adhesive membrane, a reversing shield, and a puncture guide tube. The reversing shield is detachably installed on top of the adhesive membrane, and the puncture guide tube is integrally installed at the upper port of the reversing shield. This puncture angle adjustment membrane, through the flexible reversing shield, the puncture guide tube, and the design of a larger needle hole structure, allows for puncture sampling at any angle without adjusting the membrane during routine puncture procedures, ensuring both the accuracy of puncture sampling and reducing patient discomfort.
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Description

Technical Field

[0001] This utility model relates to the field of medical auxiliary products technology, specifically a precise positioning breast puncture membrane. Background Technology

[0002] In the current medical treatment process, various examinations and procedures need to be performed on patients, and puncture sampling is one of them. For patients who come to see a doctor temporarily, puncture sampling may only be done once. However, for critically ill patients who are hospitalized, the number of puncture samplings is relatively more than that for patients who come to see a doctor for treatment.

[0003] Currently, the technical approach used for puncture procedures involves medical staff manually inserting needles for sampling. The stability of the needle during the sampling process depends entirely on the medical staff. Furthermore, for hospitalized patients, each sampling involves some degree of trauma to the body. Each time a puncture is performed, the medical staff needs to re-insert the needle, meaning a new location needs to be selected on the patient's skin. This selected location is not fixed but rather a general area. For breast biopsies, the lesion location may be within a small area. Therefore, if the medical staff re-estimates the needle insertion point, inaccurate sampling may occur, requiring re-insertion. This not only delays the examination and treatment time but also increases the patient's pain.

[0004] As patients spend more time in the hospital, they gradually recover, and the location or area of ​​the lesion gradually decreases. Therefore, during subsequent puncture sampling, the puncture sampling location should be appropriately changed to ensure accurate sampling. However, some existing body membrane structures are fixed to specific locations on the patient's body surface during use. If the puncture sampling location is to be changed, the body membrane needs to be torn off and a new body membrane needs to be re-attached. This is not only inconvenient but also increases treatment costs and adds discomfort to the patient when it is torn off.

[0005] Therefore, we propose a puncture membrane structure with adjustable angle to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a puncture angle adjustment membrane to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A puncture angle adjustment membrane includes an adhesive membrane, a reversing shield, and a puncture guide tube. The reversing shield is detachably installed on top of the adhesive membrane, and the puncture guide tube is integrally installed at the upper port of the reversing shield.

[0009] Preferably, the reversing shield is a thin rubber shield structure in the shape of a cone, the reversing shield is a hollow shield structure, and the inner cavity of the reversing shield is connected to the inner cavity of the puncture guide tube.

[0010] Preferably, the top of the adhesive film has a through-hole structure for puncturing and inserting needles, and the inner diameter of the needle hole structure is the same as the maximum inner diameter of the directional shield.

[0011] Preferably, a snap-fit ​​strip is fixedly connected to the bottom of the outer wall of the deflector, and a positioning clip adapted to the snap-fit ​​strip is fixedly connected to the top of the adhesive film.

[0012] Preferably, the inner cavity of the reversing shield is filled with alcohol-soaked cotton for disinfection and sterilization.

[0013] Preferably, the positioning card is positioned at the outer edge of the top opening of the pinhole structure, the inner height of the positioning card is less than the thickness of the snap-fit ​​strip, and the snap-fit ​​strip is specifically an elastic strip with chamfered structures at both ends.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This puncture angle adjustment membrane, with its flexible directional shield, puncture guide tube, and large needle hole structure, allows for puncture sampling at any angle without adjusting the membrane during routine puncture procedures. This ensures the accuracy of puncture sampling while reducing patient discomfort. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is an exploded view of the structure of this utility model.

[0018] In the diagram: 1. Adhesive film; 2. Directional shield; 3. Puncture guide tube; 4. Positioning clip; 5. Connecting strip; 6. Pinhole structure; 7. Alcohol swab. Detailed Implementation

[0019] 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.

[0020] See Figure 1-2 This utility model provides a technical solution for adjusting the puncture angle of the body membrane:

[0021] Example:

[0022] The body membrane structure mainly includes an adhesive membrane 1 that adheres to the patient's body surface, a directional shield 2 for changing the puncture angle, and a puncture guide tube 3 for inserting a puncture needle. The directional shield 2 is installed at the top of the adhesive membrane 1, and the puncture guide tube 3 is integrally installed at the top of the directional shield 2.

[0023] The deflector 2 is a conical rubber cover structure, and the deflector 2 is a hollow cover structure. The inner cavity of the deflector 2 is connected to the inner cavity of the puncture guide tube 3.

[0024] The adhesive film 1 has a through-hole structure 6 for puncturing and inserting needles, and the inner diameter of the needle hole structure 6 is the same as the maximum inner diameter of the reversing cover 2.

[0025] Among them, an arc-shaped snap-fit ​​strip 5 is fixedly connected to the bottom of the outer wall of the deflector 2, and positioning clips 4 adapted to the snap-fit ​​strip 5 are set at equal intervals on the top of the adhesive film 1.

[0026] The inner cavity of the deflector 2 is filled with alcohol swabs 7 for needle hole disinfection.

[0027] The positioning card 4 is located at the top edge of the pinhole structure 6. The inner height of the positioning card 4 is less than the thickness of the snap-fit ​​strip 5, and the snap-fit ​​strip 5 is an elastic strip structure with chamfered structures at both ends.

[0028] In this embodiment, when using the body membrane structure of this technical solution, the adhesive film 1 is first attached to the patient's body surface. Then, the alcohol cotton swab 7 is inserted into the inner cavity of the reversing cover 2. Finally, through the cooperation of the snap-fit ​​strip 5 and the positioning card 4, the reversing cover 2 with the puncture guide tube 3 is fastened onto the adhesive film 1. After installation, the alcohol cotton swab 7 inside is in contact with the patient's body surface, and the two have an interaction force. That is, the alcohol cotton swab 7 is in contact with the patient's body surface in a pressing state. At the same time, due to the size design of the snap-fit ​​strip 5 and the positioning card 4, the entire reversing cover 2 is subjected to a downward pulling force after installation, which can ensure the airtightness between the reversing cover 2 and the adhesive film 1.

[0029] Next comes the puncture and sampling procedure. Medical staff insert the puncture and sampling needle directly into the puncture guide tube 3, passing through the deflector 2, alcohol swab 7, and needle hole structure 6 in sequence, and then into the patient's body to collect a sample. When it is necessary to change the puncture angle, the sampling needle is rotated before it is inserted into the patient's body. The sampling needle causes the puncture guide tube 3 to change angle. With the use of the flexible deflector 2, the puncture angle can be changed at will to meet the needs of medical staff to carry out normal treatment work.

[0030] In this technical solution, the flexible directional shield 2 and the puncture guide tube 3, combined with the design of a larger needle hole structure 6, allow for puncture sampling at any angle without adjusting the body membrane during routine puncture work. This ensures the accuracy of puncture sampling while reducing patient discomfort.

[0031] 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 puncture angle adjustment membrane, comprising an adhesive membrane (1), a reversing shield (2), and a puncture guide tube (3), characterized in that: The reversing shield (2) is detachably installed on top of the adhesive film (1), and the puncture guide tube (3) is integrally installed at the upper port position of the reversing shield (2).

2. The puncture angle adjustment membrane according to claim 1, characterized in that: The reversing shield (2) is a cone-shaped thin rubber shield structure. The reversing shield (2) is a hollow shield structure, and the inner cavity of the reversing shield (2) is connected to the inner cavity of the puncture guide tube (3).

3. The puncture angle adjustment membrane according to claim 1, characterized in that: The top of the adhesive film (1) has a through-hole structure (6) for puncturing and inserting needles, and the inner diameter of the through-hole structure (6) is the same as the maximum inner diameter of the directional shield (2).

4. The puncture angle adjustment membrane according to claim 1, characterized in that: A snap-fit ​​strip (5) is fixedly connected to the bottom of the outer wall of the directional shield (2), and a positioning clip (4) that matches the snap-fit ​​strip (5) is fixedly connected to the top of the adhesive film (1).

5. The puncture angle adjustment membrane according to claim 1, characterized in that: The inner cavity of the deflector (2) is filled with alcohol swabs (7) for disinfection and sterilization.

6. The puncture angle adjustment membrane according to claim 4, characterized in that: The positioning card (4) is located at the outer edge of the top opening of the pinhole structure (6). The inner height of the positioning card (4) is less than the thickness of the snap-fit ​​strip (5), and the snap-fit ​​strip (5) is specifically an elastic strip with chamfered structures at both ends.