Needle placing auxiliary device for infusion port

By using the support cover and positioning tube design of the infusion port needle insertion auxiliary device, the problems of difficult and misaligned insertion of non-traumatic needles are solved, and accurate and stable puncture results are achieved.

CN223831527UActive Publication Date: 2026-01-27BEIJING LUHE HOSPITAL AFFILIATED TO CAPITAL MEDICAL UNIV
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Patent Information

Application Number
CN202422806751.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-18
Publication Date
2026-01-27
Estimated Expiration
2034-11-18

AI Technical Summary

Technical Problem

Traditional methods make it difficult to accurately insert the non-traumatic needle into the injection port of the infusion port, and it is easy to deviate due to hand tremors, affecting the puncture and injection effect.

Method used

An auxiliary device for infusion port insertion was designed, including a support cover, a positioning tube, and an adhesive tape. The support cover positions the needle on the injection seat, and the positioning tube and arc-shaped positioning block guide the needle to be accurately inserted into the injection port without deviation.

Benefits of technology

It enables accurate insertion of non-invasive needles, avoids deviation during puncture, and improves the accuracy and convenience of puncture and injection.

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Abstract

The utility model relates to the technical field of infusion port needle placing auxiliary devices, in particular to an infusion port needle placing auxiliary device which enables medical staff to accurately insert a non-injury needle into an injection port, avoids deviation of the non-injury needle during puncture, avoids influence on puncture injection and brings convenience to work of the medical staff. Comprising an auxiliary component for placing a needle, the auxiliary component comprises a supporting cover and a positioning pipe, the supporting cover is in an inverted conical hopper shape, a supporting ring is integrally and fixedly arranged at the bottom of the supporting cover, two sets of splicing belts are symmetrically and fixedly connected to the outer side of the supporting ring, and the positioning pipe is arranged on the supporting cover in a screwed mode through matching of external threads and threaded holes. Three sets of arc-shaped positioning blocks are fixedly connected to the inner wall of the positioning pipe in an annular array mode, the inner sides of the three sets of arc-shaped positioning blocks are each provided with an arc-shaped concave face matched with the damage-free needle, and receding grooves communicated with the positioning pipe and the sponge ring are formed in the supporting cover and the supporting ring.
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Description

Technical Field

[0001] This utility model relates to the technical field of infusion port needle placement auxiliary devices, and in particular to an infusion port needle placement auxiliary device. Background Technology

[0002] An infusion port is a medical device for intravenous infusion, referring to a closed infusion device that is completely implanted in the human body. It is also known as an implantable drug delivery device and mainly consists of an injection port for puncture and a venous catheter system. The injection port is implanted under the skin, and the catheter opens at the junction of the superior vena cava and the right atrium. An infusion channel can be established by puncturing the infusion port with a non-traumatic needle, providing a good and reliable venous access for patients undergoing long-term infusion therapy.

[0003] The injection port has an opening for puncture injection, located in the center of the infusion port. However, since the injection port is implanted under the skin, the injection site cannot be seen with the naked eye. The traditional method is to touch the injection port to find the opening and then perform the puncture injection. In this way, it is difficult to accurately insert the non-traumatic needle into the injection site during puncture injection. Moreover, the non-traumatic needle is prone to deviation due to hand tremors during puncture injection, affecting the puncture injection and causing inconvenience to medical staff. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides an infusion port-mounted needle auxiliary device that enables medical staff to accurately insert the non-traumatic needle into the injection port, avoids deviation of the non-traumatic needle during puncture, avoids affecting the puncture and injection, and brings convenience to the work of medical staff.

[0005] Technical solution

[0006] To achieve the above objectives, this utility model provides the following technical solution: an auxiliary device for inserting a port-a-cath needle, comprising auxiliary components for needle insertion. The auxiliary components include a support cover and a positioning tube. The support cover is in the shape of an inverted cone. A support ring is integrally fixed at the bottom of the support cover. Two sets of adhesive tapes are symmetrically fixedly connected to the outside of the support ring. Each set of adhesive tapes has an adhesive layer at its bottom. Both adhesive layers are covered with a release film. A threaded hole is provided at the center of the top of the support cover. An external thread is provided on the outer wall of the positioning tube. The positioning tube is screwed onto the support cover through the mating of the external thread and the threaded hole. A sponge ring is fixedly connected to the bottom of the positioning tube. Three sets of arc-shaped positioning blocks are fixedly connected in a ring array on the inner wall of the positioning tube. Each of the three sets of arc-shaped positioning blocks has an arc-shaped concave surface on its inner side that mates with a non-damaging needle. A clearance groove is provided on the support cover and the support ring, communicating with the positioning tube and the sponge ring.

[0007] Preferably, two sets of screw plates are symmetrically fixed on the outer wall of the positioning tube.

[0008] Preferably, both sets of screw plates are fixedly fitted with anti-slip sleeves.

[0009] Preferably, a silicone pad is fixedly connected to the bottom end of the support ring.

[0010] Preferably, both sets of release films have an easy-tear tab fixedly provided on their outer sides.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: Initially, the entire device is packaged in a sealed bag. When using it, the bag is torn open and the device is removed. The support cover is then positioned by fastening it over the injection port embedded under the skin, ensuring the bottom of the support cover aligns with the top of the injection port. The release film is then removed, allowing the adhesive layer at the bottom of the adhesive tape to adhere to the skin, thus securing the support cover above the injection port. By rotating the positioning tube, the sponge ring moves downwards, gently pressing it against the patient's skin. The clearance groove on the positioning tube is misaligned with the clearance groove on the support cover. Since the positioning tube is in the center of the support cover, the sponge ring rests against the skin directly above the injection port. Then, the needle is inserted. During needle placement, the atraumatic needle is inserted into the positioning tube, positioning it between the three sets of arc-shaped positioning blocks. Because the clearance grooves on the positioning tube and the support cover are misaligned, the atraumatic needle can be accurately and stably punctured into the injection port of the subcutaneous injection seat by the guidance of the arc-shaped positioning blocks. After needle placement, the device can be removed. When removing it, slowly rotate the positioning tube in the opposite direction so that the clearance grooves on the positioning tube and the support cover are aligned. Then peel the adhesive tape off the patient's skin, and the device can be removed from the atraumatic needle through the clearance grooves. With the assistance of this device, medical staff can accurately insert the atraumatic needle into the injection port, avoiding deviation of the atraumatic needle during puncture and avoiding affecting the puncture injection, thus bringing convenience to the work of medical staff. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the isometric structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the bottom isometric structure of this utility model;

[0014] Figure 3 This is an isometric structural diagram of the support cover in this utility model;

[0015] Figure 4 This is an isometric structural diagram of the positioning tube in this utility model;

[0016] Figure 5 This is a utility model Figure 4 A top-view axonometric structural schematic diagram;

[0017] The following are labels in the attached diagram: 1. Support cover; 2. Support ring; 3. Threaded hole; 4. Positioning tube; 5. External thread; 6. Sponge ring; 7. Arc-shaped positioning block; 8. Arc-shaped concave surface; 9. Clearance groove; 10. Adhesive tape; 11. Release film; 12. Tightening tab; 13. Anti-slip sleeve; 14. Silicone soft pad; 15. Easy-tear tab. Detailed Implementation

[0018] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0019] Example

[0020] Please see Figures 1-5This utility model discloses an auxiliary device for infusion port insertion, comprising a support cover 1 and a positioning tube 4. The support cover 1 is in the shape of an inverted cone. A support ring 2 is integrally fixed at the bottom of the support cover 1. Two sets of adhesive tapes 10 are symmetrically fixed to the outer side of the support ring 2. Each set of adhesive tapes 10 has an adhesive layer at its bottom, and both adhesive layers are covered with a release film 11. A threaded hole 3 is provided at the center of the top of the support cover 1. An external thread 5 is provided on the outer wall of the positioning tube 4. The positioning tube 4 is screwed onto the support cover 1 through the mating of the external thread 5 and the threaded hole 3. A sponge ring 6 is fixedly connected to the bottom end of the positioning tube 4. A ring is also provided on the inner wall of the positioning tube 4. The array is fixedly connected by three sets of arc-shaped positioning blocks 7. Each of the three sets of arc-shaped positioning blocks 7 has an arc-shaped concave surface 8 on its inner side that mates with the non-traumatic needle. The support cover 1 and support ring 2 have clearance grooves 9 that communicate with the positioning tube 4 and sponge ring 6. Initially, the entire device is packaged in a sealed bag. When using it, the bag is torn open and the device is removed. The support cover 1 is then positioned by placing it over the injection seat embedded under the skin, ensuring the bottom of the support cover 1 matches the top of the injection seat. The release film 11 is then removed, allowing the adhesive layer at the bottom of the adhesive tape 10 to adhere to the skin, thereby... The support cover 1 is fixed above the injection port. By rotating the positioning tube 4, the positioning tube 4 moves the sponge ring 6 downward, gently pressing the sponge ring 6 against the patient's skin. The clearance groove 9 on the positioning tube 4 is offset from the clearance groove 9 on the support cover 1. Since the positioning tube 4 is in the center of the support cover 1, the sponge ring 6 is now pressed against the skin directly above the injection port. Then, the needle is inserted. During needle insertion, the non-traumatic needle is inserted into the positioning tube 4, positioning it between the three sets of arc-shaped positioning blocks 7. Because the clearance groove 9 on the positioning tube 4 is offset from the clearance groove 9 on the support cover 1, the arc-shaped positioning blocks... The guide 7 allows the non-traumatic needle to be accurately and stably inserted into the injection port of the subcutaneous injection seat. After the needle is inserted, the device can be removed. When removing it, slowly rotate the positioning tube 4 in the opposite direction so that the relief groove 9 on the positioning tube 4 coincides with the relief groove 9 on the support cover 1. Then peel the adhesive tape 10 off the patient's skin. The device can then be removed from the non-traumatic needle through the relief groove 9. With the assistance of this device, medical staff can accurately insert the non-traumatic needle into the injection port, avoiding deviation of the non-traumatic needle during puncture and avoiding affecting the puncture injection, thus bringing convenience to the work of medical staff.

[0021] Two sets of screw plates 12 are symmetrically fixed on the outer wall of the positioning tube 4. By setting the screw plates 12, the positioning tube 4 can be rotated by pressing the fingers against the screw plates 12, making the positioning tube 4 more labor-saving and convenient to rotate.

[0022] Both sets of screw plates 12 are fixedly fitted with anti-slip sleeves 13; by setting anti-slip sleeves 13, it is possible to prevent the hand from slipping when screwing the positioning tube 4 through the screw plates 12.

[0023] A silicone pad 14 is fixedly connected to the bottom end of the support ring 2; by setting the silicone pad 14, the bottom of the support ring 2 can be made to be softer and more comfortable when it is fastened to the patient's skin.

[0024] Both sets of release films 11 are fixedly provided with easy-tear tabs 15 on their outer sides; by providing easy-tear tabs 15, the release film 11 can be more easily peeled off from the adhesive tape 10.

[0025] This utility model discloses an auxiliary device for infusion port insertion. The working principle is as follows: Initially, the entire device is packaged in a sealed bag. When in use, the bag is torn open and the device is removed. The support cover 1 is then positioned, placed over the subcutaneous injection port, ensuring the bottom of the support cover 1 aligns with the top of the injection port. The release film 11 is then removed, allowing the adhesive layer at the bottom of the adhesive tape 10 to adhere to the skin, thus securing the support cover 1 above the injection port. Rotating the positioning tube 4 causes the sponge ring 6 to move downwards, gently pressing it against the patient's skin. This misaligns the clearance groove 9 on the positioning tube 4 with the clearance groove 9 on the support cover 1. 4 is positioned in the center of the support cover 1, so the sponge ring 6 is pressed against the skin directly above the injection port. Then, the needle is inserted. During needle insertion, the non-traumatic needle is inserted into the positioning tube 4, positioning it between the three sets of arc-shaped positioning blocks 7. Since the clearance groove 9 on the positioning tube 4 is offset from the clearance groove 9 on the support cover 1, the non-traumatic needle can be accurately and stably punctured into the injection port of the subcutaneous injection seat by the guidance of the arc-shaped positioning blocks 7. After the needle insertion is completed, the device can be removed. When removing it, slowly rotate the positioning tube 4 in the opposite direction so that the clearance groove 9 on the positioning tube 4 coincides with the clearance groove 9 on the support cover 1. Then, peel the adhesive tape 10 off the patient's skin, and the device can be removed from the non-traumatic needle through the clearance groove 9.

[0026] The present invention relates to an auxiliary device for infusion port insertion. Its installation, connection, or setting methods are all common mechanical methods, and any method that can achieve its beneficial effects can be implemented.

[0027] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. An auxiliary device for infusion port insertion, characterized in that, The device includes auxiliary components for needle placement, which include a support cover (1) and a positioning tube (4). The support cover (1) is in the shape of an inverted cone. A support ring (2) is integrally fixed at the bottom of the support cover (1). Two sets of adhesive tapes (10) are symmetrically fixedly connected to the outside of the support ring (2). The bottom of each set of adhesive tapes (10) is provided with an adhesive layer. Both adhesive layers are covered with a release film (11). A threaded hole (3) is provided in the center of the top of the support cover (1). An external thread is provided on the outer wall of the positioning tube (4). (5) The positioning tube (4) is screwed onto the support cover (1) through the mating of the external thread (5) and the threaded hole (3). A sponge ring (6) is fixedly connected to the bottom end of the positioning tube (4). Three sets of arc-shaped positioning blocks (7) are fixedly connected in an annular array on the inner wall of the positioning tube (4). The inner side of each of the three sets of arc-shaped positioning blocks (7) is provided with an arc-shaped concave surface (8) that mates with the non-damaging needle. The support cover (1) and the support ring (2) are provided with clearance grooves (9) that communicate with the positioning tube (4) and the sponge ring (6).

2. The infusion port insertion needle auxiliary device as described in claim 1, characterized in that, Two sets of screw plates (12) are symmetrically fixed on the outer wall of the positioning tube (4).

3. The infusion port insertion needle auxiliary device as described in claim 2, characterized in that, Both sets of screw plates (12) are fixedly fitted with anti-slip sleeves (13).

4. The infusion port insertion needle auxiliary device as described in claim 3, characterized in that, The bottom end of the support ring (2) is fixedly connected to a silicone pad (14).

5. The infusion port insertion needle auxiliary device as described in claim 4, characterized in that, Both sets of release films (11) have easy-tear tabs (15) fixedly provided on their outer sides.