Port positioning device and working method thereof

Abstract

The application belongs to the technical field of medical instrument application, and particularly discloses a transfusion port positioning device, which comprises a fixed fixing part, a movable fixing part, a plurality of positioning sheets, a fixed fixing part through groove, a fixed fixing part recess, a fixed fixing part connecting block, a movable fixing part U-shaped recess, a movable fixing part connecting block, a movable fixing part through groove, a movable fixing part recess, a horizontal screw hole, a horizontal adjusting screw rod, an arc clamping part, a transition part and a circular limiting sleeve. The transfusion port positioning device has the following advantages: 1. The overall structure is designed in a combined split type, which is convenient to assemble and use; the position of the arc clamping part is horizontally and stably adjusted through the horizontal adjusting screw rod, so that nursing personnel can control the insertion of the transfusion needle into the transfusion port; 2. The fixed fixing part, the plurality of positioning sheets, the fixed fixing part through groove and the fixed fixing part recess are integrally formed of flexible material, and are closely attached to the outer layer of the transfusion port after being pasted by medical adhesive tape; and 3. The fixed fixing part connecting block and the movable fixing part connecting block are conveniently assembled and used in cooperation.

Description

Technical Field

[0001] This invention belongs to the field of medical device application technology, specifically relating to an infusion port positioning device and its working method. Background Technology

[0002] A port-a-cath is a closed infusion device that is completely implanted in the human body. It consists of a catheter with its tip located in the superior vena cava and an injection port implanted under the skin. It is a medical device.

[0003] A port-a-cath is a relatively new infusion tubing technology. It is a fully implantable, closed infusion system embedded in the body. The system includes a central venous catheter connected to a device called a puncture port at its end. Using a minor surgical procedure, the catheter is inserted subcutaneously into a major vein, such as the subclavian or superior vena cava. Part of the catheter is embedded in the subcutaneous tissue, while the other end, the puncture port, is left in the subcutaneous tissue of the chest wall and sutured in place. After the surgery, only a small suture wound is visible on the skin. After healing and suture removal, a protruding ball can be felt on the patient's skin. During treatment, the needle is inserted percutaneously and vertically into the reservoir of the puncture port. This allows for convenient injection, long-term continuous infusion, and blood collection. It is also suitable for the infusion of high-concentration chemotherapy drugs, total parenteral nutrition, and blood products.

[0004] The following problems exist when medical staff perform port-a-cath punctures: ① Because port-a-caths are somewhat mobile, the operator needs to use their non-dominant hand to stabilize them, resulting in poor stability. Additionally, due to the small diameter of the port-a-cath, the needle can easily puncture the fingers of medical staff during puncture; ② Medical staff cannot accurately locate the puncture point, and bleeding may occur at the puncture site when the patient is undergoing chemotherapy before the wound has healed, increasing the workload of nurses; ③ Repeated punctures also cause pain to patients and may lead to extravasation of medication.

[0005] To address the aforementioned problems, this invention provides a port positioning device and its operating method. Summary of the Invention

[0006] Purpose of the invention: The purpose of this invention is to address the shortcomings of the prior art by providing a positioning device for a port of entry and its working method, thereby solving the problems existing in the use of existing ports of entry in the background art.

[0007] Technical Solution: The first aspect of the present invention provides a positioning device for an infusion port, comprising a fixed part and a movable part. The outer wall of the fixed part is provided with a plurality of positioning plates. A fixed part through groove is provided inside the fixed part. A fixed part groove is provided on one side of the fixed part. A fixed part connecting block is provided on one side of the fixed part groove. A movable part U-shaped groove is provided on one side of the movable part. A movable part connecting block, which cooperates with the fixed part connecting block, is located inside the movable part U-shaped groove. The movable part through groove is provided inside the movable part. A movable part groove is provided on one side of the movable part. A transverse screw hole is symmetrically provided on one side of the movable part. A transverse adjusting screw is provided inside the transverse screw hole. An arc-shaped clamping part is symmetrically provided inside the movable part groove. A transition part is provided on the outer wall of each arc-shaped clamping part. A circular limiting sleeve is provided at one end of each transition part. The transverse adjusting screw is engaged with the circular limiting sleeve.

[0008] In this technical solution, the infusion port positioning device further includes a first adhesive layer disposed on one side of the groove of the fixing part.

[0009] In this technical solution, the infusion port positioning device further includes a second adhesive layer disposed on one side of the U-shaped groove of the movable fixing part.

[0010] In this technical solution, the infusion port positioning device further includes strip-shaped guide grooves symmetrically arranged in one side of the groove of the moving and fixed part, and strip-shaped sliders respectively arranged on the outer wall of one end of the transition part and inserted into the strip-shaped guide grooves.

[0011] In this technical solution, the infusion port positioning device further includes a flexible pad layer disposed on the lower part of the inner wall of the opposite side of the arc-shaped clamping part.

[0012] The positioning device for the infusion port in this technical solution further includes a first horizontal bar and a second horizontal bar disposed on the upper part of the inner wall of the opposite side of the arc-shaped clamping part, a first arc-shaped transition part and a second arc-shaped transition part disposed at one end of the first horizontal bar and the second horizontal bar respectively, and a horizontal hollow limiting sleeve and a horizontal limiting protrusion disposed at both end faces of the first arc-shaped transition part and the second arc-shaped transition part respectively, and used in cooperation with each other.

[0013] In this technical solution, the fixed and movable connecting blocks are respectively configured as circular structures.

[0014] In this technical solution, the diameter of the fixed part is larger than the diameter of the movable part.

[0015] A second aspect of the present invention provides a method for operating an infusion port positioning device, comprising the following steps: Step 1, fixing the movable fixing part and the fixed fixing part together via a fixed fixing part connecting block and a movable fixing part connecting block. Step 2, using medical tape to adhere and fix the fixed fixing part to the outer layer of the infusion port location via several positioning pieces. Step 3, placing the arc-shaped clamping part in the through groove of the movable fixing part, and simultaneously rotating the horizontal adjusting screw, so that the horizontal adjusting screw pushes the arc-shaped clamping part to move horizontally relative to the surrounding area through the circular limiting sleeve and the transition part until the flexible padding layer contacts the outer layer of the infusion port location.

[0016] In this technical solution, in step 3, after the flexible padding layer on the inner wall of the arc-shaped clamping part comes into contact with the outer layer of the infusion port, the first arc-shaped transition part at one end of the first crossbar and the second arc-shaped transition part at one end of the second crossbar fit together. In this way, the transverse cavity formed by the first arc-shaped transition part and the second arc-shaped transition part is located directly above the infusion port, thus limiting the infusion needle.

[0017] Compared with the prior art, the beneficial effects of the infusion port positioning device and its working method of the present invention are as follows: 1. The overall structure is a modular design, which is convenient for assembly and use. At the same time, the position of the arc-shaped clamping part is horizontally and stably adjusted by adjusting the horizontal adjusting screw, which makes it easy for nurses to control the insertion of the infusion needle into the infusion port; 2. The fixed part, several positioning plates, fixed part through groove and fixed part groove are made of flexible material and are tightly attached to the outer layer of the infusion port after being glued with medical tape; 3. The fixed part connecting block and the moving part connecting block used in conjunction are easy to assemble and use; 4. The added first horizontal bar, second horizontal bar, first arc-shaped transition part, second arc-shaped transition part, horizontal hollow limiting sleeve and horizontal limiting protrusion form a horizontal limiting cavity when in use, through which nurses can accurately insert the infusion needle; 5. The added flexible pad layer plays an isolation and protection role. When the arc-shaped clamping part is located on the outer layer of the infusion port, it will not cause compression damage to the skin, improving the patient's comfort. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. 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 creative effort.

[0019] Figure 1 This is a front view schematic diagram of a port positioning device according to the present invention;

[0020] Figure 2 This is a top view of the fixed and fixed part, several positioning pieces, through groove of the fixed and fixed part, and groove of the fixed and fixed part of the positioning device of the present invention.

[0021] Figure 3 This is a bottom view structural schematic diagram of the movable fixing part, the groove of the movable fixing part, the connecting block of the movable fixing part, and the through groove of the movable fixing part of the infusion port positioning device of the present invention.

[0022] Figure 4 This is a top view of the movable fixing part, horizontal screw hole, strip guide groove, groove of the movable fixing part, and through groove of the movable fixing part of the positioning device for the infusion port of the present invention.

[0023] Figure 5 This is a top view of the arc-shaped clamping part, flexible pad, etc. of the infusion port positioning device of the present invention;

[0024] Figure 6 This is a top view of the arc-shaped clamping part, flexible pad, first crossbar, second crossbar, first arc-shaped transition part, second arc-shaped transition part, horizontal hollow limiting sleeve, and horizontal limiting protrusion of the positioning device for the infusion port of the present invention.

[0025] The following are the labels in the diagram: 10-Fixed part, 11-Positioning piece, 12-Fixed part through groove, 13-Fixed part groove, 14-First adhesive layer, 15-Fixed part connecting block, 16-Moving part, 17-Moving part U-shaped groove, 18-Second adhesive layer, 19-Moving part connecting block, 20-Horizontal screw hole, 21-Horizontal adjusting screw, 22-Strip guide groove, 23-Strip slider, 24-Transition part, 25-Circular limiting sleeve, 26-Arc-shaped clamping part, 27-Flexible pad, 28-First crossbar, 29-Second crossbar, 30-First arc-shaped transition part, 31-Second arc-shaped transition part, 32-Horizontal hollow limiting sleeve, 33-Horizontal limiting protrusion, 34-Moving part through groove, 35-Infusion needle, 36-Moving part groove. Detailed Implementation

[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0027] In the description of this invention, it should be noted that the terms "top," "bottom," and "side" are used interchangeably.

[0028] "The other side", "the front", "the back", "the middle part", "the inside", "the top",

[0029] The orientation or positional relationship indicated by terms such as "bottom end" is based on the orientation or positional relationship shown in the accompanying drawings and is only for the convenience of describing the invention and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; furthermore, unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly, for example, they can be fixed connections, detachable connections, or integral connections; they can be mechanical connections or electrical connections; they can be direct connections or indirect connections through an intermediate medium; they can be internal connections between two elements. For those skilled in the art, the specific meaning of the above terms in the invention can be understood according to the specific circumstances.

[0030] Example 1

[0031] like Figure 1 , Figure 2 , Figure 3 and Figure 4 The infusion port positioning device shown includes a fixed part 10 and a movable part 16.

[0032] The outer wall of the fixing part 10 is provided with a plurality of positioning pieces 11.

[0033] The fixing part 10 is provided with a fixing part through groove 12.

[0034] A fixing groove 13 is provided in one side of the fixing part 10.

[0035] A fixing part connecting block 15 is provided in one side of the fixing part groove 13.

[0036] One side of the movable fixing part 16 is provided with a U-shaped groove 17 for the movable fixing part.

[0037] The movable fixing part connecting block 19 is located within the U-shaped groove 17 of the movable fixing part and is used in conjunction with the fixed fixing part connecting block 15.

[0038] The movable fixing part 16 is provided with a movable fixing part through groove 34.

[0039] A movable fixing part groove 36 is provided on one side of the movable fixing part 16.

[0040] One side of the movable fixing part 16 is symmetrically provided with horizontal screw holes 20.

[0041] A horizontal adjusting screw 21 is provided inside the horizontal screw hole 20.

[0042] The movable fixing part has symmetrically arranged arc-shaped clamping parts 26 in the groove 36.

[0043] The outer wall of the arc-shaped clamping part 26 is provided with transition parts 24.

[0044] A circular limiting sleeve 25 is provided at one end of the transition section 24;

[0045] Among them, the horizontal adjusting screw 21 is inserted into the circular limiting sleeve 25.

[0046] Example 2

[0047] Based on Embodiment 1, the infusion port positioning device further includes a first adhesive layer 14 disposed on one side of the groove 13 of the fixing part;

[0048] The fixing part connecting block 15 is disposed on the surface of the fixing part groove 13 through the first adhesive layer 14.

[0049] Example 3

[0050] Based on Embodiment 1 or Embodiment 2, the infusion port positioning device further includes a second adhesive layer 18 disposed on one side of the U-shaped groove 17 of the movable fixing part;

[0051] The connecting block 19 of the movable fixing part is disposed on the surface of the U-shaped groove 17 of the movable fixing part through the second adhesive layer 18.

[0052] Example 4

[0053] Based on Embodiment 1, Embodiment 2, or Embodiment 3, the infusion port positioning device further includes strip guide grooves 22 symmetrically arranged in one side of the groove 36 of the moving fixed part, and strip sliders 23 respectively arranged on the outer wall of one end of the transition part 24 and inserted into the strip guide grooves 22;

[0054] The transition section 24 is designed as a circular structure.

[0055] Example 5

[0056] Based on Embodiment 1, Embodiment 2, Embodiment 3, or Embodiment 4, the infusion port positioning device further includes a flexible pad 27 disposed on the lower part of the inner wall of the opposite side of the arc-shaped clamping part 26.

[0057] The flexible pad 27 has an arc-shaped structure, and the height of the flexible pad 27 is half the height of the arc-shaped clamping part 26.

[0058] Example 6

[0059] Based on Example 1, Example 2, Example 3, Example 4, or Example 5, such as Figure 5 , Figure 6The infusion port positioning device shown also includes a first crossbar 28 and a second crossbar 29 disposed on the upper part of the inner wall of the opposite side of the arc-shaped clamping part 26, a first arc-shaped transition part 30 and a second arc-shaped transition part 31 respectively disposed at one end of the first crossbar 28 and the second crossbar 29, and a horizontal hollow limiting sleeve 32 and a horizontal limiting protrusion 33 respectively disposed on the end faces of the first arc-shaped transition part 30 and the second arc-shaped transition part 31 and used in conjunction with each other;

[0060] The first horizontal bar 28, the first arc-shaped transition part 30, and the horizontal hollow limiting sleeve 32 are made of a flexible material in one piece, and the second horizontal bar 29, the second arc-shaped transition part 31, and the horizontal limiting protrusion 33 are made of a flexible material in one piece.

[0061] In addition, in the above embodiments, the fixed part connecting block 15 and the movable part connecting block 19 are preferably configured as circular structures.

[0062] Among them, the fixed part connecting block 15 and the movable part connecting block 19 are Velcro or magnets used in conjunction.

[0063] In addition, in the above embodiments, preferably, the diameter of the fixed part 10 is larger than the diameter of the movable part 16;

[0064] The fixing part 10, several positioning pieces 11, fixing part through groove 12 and fixing part groove 13 are made of a flexible material that is integrally formed. The fixing part 10 is fixed by several positioning pieces 11 through medical tape.

[0065] The working principle or structural principle of the infusion port positioning device of this structure:

[0066] (1) First, the movable fixing part 16 and the fixed fixing part 10 are fixedly assembled by the fixed fixing part connecting block 15 and the movable fixing part connecting block 19.

[0067] (2) Then, the fixing part 10 is attached to the outer layer of the infusion port using medical tape through several positioning pieces 11;

[0068] (3) Finally, place the arc-shaped clamping part 26 in the through groove 34 of the moving fixed part and rotate the horizontal adjusting screw 21 simultaneously. In this way, the horizontal adjusting screw 21 pushes the arc-shaped clamping part 26 to move horizontally relative to each other through the circular limiting sleeve 25 and the transition part 24 until the flexible pad 27 contacts the outer layer of the infusion port.

[0069] Furthermore, when the flexible pad 27 on the inner wall of the arc-shaped clamping part 26 comes into contact with the outer layer of the infusion port, the first arc-shaped transition part 30 at one end of the first crossbar 28 and the second arc-shaped transition part 31 at one end of the second crossbar 29 fit together. In this way, the transverse cavity formed by the first arc-shaped transition part 30 and the second arc-shaped transition part 31 is located directly above the infusion port, limiting the infusion needle 35.

[0070] In addition, the horizontal limiting protrusion 33 is embedded in the horizontal hollow limiting sleeve 32 to limit the tightly fitting first arc-shaped transition part 30 and second arc-shaped transition part 31.

[0071] In addition, the fixed fixing part connecting block 15 and the movable fixing part connecting block 19 have the same diameter, and are smaller than the diameter of the movable fixing part U-shaped groove 17. After assembly, the fixed fixing part connecting block 15 and the movable fixing part connecting block 19 are located in the movable fixing part U-shaped groove 17 (to prevent detachment).

[0072] It should be noted that, in this document, terms such as "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0073] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A port positioning device, characterized in that: It includes a fixed part (10) and a movable part (16). The outer wall of the fixing part (10) is provided with a number of positioning pieces (11). The fixing part (10) is provided with a fixing part through groove (12). A fixing groove (13) is provided in one side of the fixing part (10). A fixing part connecting block (15) is provided in one side of the fixing part groove (13). The movable fixing part (16) has a U-shaped groove (17) on one side. The movable fixing part U-shaped groove (17) is used in conjunction with the fixed fixing part connecting block (15). The movable fixing part (16) is provided with a movable fixing part through groove (34). One side of the movable fixing part (16) is provided with a movable fixing part groove (36). One side of the movable fixing part (16) is symmetrically provided with horizontal screw holes (20). A horizontal adjusting screw (21) is provided inside the horizontal screw hole (20). The groove (36) of the moving fixing part is symmetrically provided with arc-shaped clamping parts (26). The outer wall of the arc-shaped clamping part (26) is provided with a transition part (24). A circular limiting sleeve (25) is provided at one end of the transition part (24); Among them, the horizontal adjusting screw (21) is inserted into the circular limiting sleeve (25); It also includes strip guide grooves (22) symmetrically arranged in one side of the groove (36) of the moving fixed part, and strip sliders (23) respectively arranged on the outer wall of one end of the transition part (24) and inserted into the strip guide grooves (22).

2. The port positioning device according to claim 1, characterized in that: The infusion port positioning device further includes a first adhesive layer (14) disposed on one side of the groove (13) of the fixing part.

3. The port positioning device according to claim 2, characterized in that: The infusion port positioning device further includes a second adhesive layer (18) disposed on one side of the U-shaped groove (17) of the movable fixing part.

4. The port positioning device according to claim 3, characterized in that: The infusion port positioning device further includes a flexible pad (27) disposed on the lower part of the inner wall of the opposite side of the arc-shaped clamping part (26).

5. A port positioning device according to claim 4, characterized in that: The infusion port positioning device further includes a first crossbar (28) and a second crossbar (29) disposed on the upper part of the inner wall of the opposite side of the arc-shaped clamping part (26), a first arc-shaped transition part (30) and a second arc-shaped transition part (31) respectively disposed at one end of the first crossbar (28) and the second crossbar (29), and a horizontal hollow limiting sleeve (32) and a horizontal limiting protrusion (33) respectively disposed on the end faces of the first arc-shaped transition part (30) and the second arc-shaped transition part (31) and used in conjunction with each other.

6. The port positioning device according to claim 1, characterized in that: The fixed and fixed connecting block (15) and the movable connecting block (19) are respectively configured as circular structures.

7. A port positioning device according to any one of claims 1 to 6, characterized in that: The diameter of the fixed part (10) is larger than the diameter of the movable part (16).

8. The working method of the infusion port positioning device according to claim 7, characterized in that: Includes the following steps, Step 1: Fix the movable fixing part (16) and the fixed fixing part (10) together by means of the fixed fixing part connecting block (15) and the movable fixing part connecting block (19); Step 2: Use medical tape to attach and fix the fixing part (10) to the outer layer of the infusion port using several positioning pieces (11); Step 3: Place the arc-shaped clamping part (26) in the through groove (34) of the moving fixed part, and rotate the horizontal adjusting screw (21) synchronously. In this way, the horizontal adjusting screw (21) pushes the arc-shaped clamping part (26) to move horizontally relative to each other through the circular limiting sleeve (25) and the transition part (24) until the flexible pad (27) contacts the outer layer of the infusion port.

9. The working method of the infusion port positioning device according to claim 8, characterized in that: In step 3, after the flexible pad (27) on the inner wall of the arc-shaped clamping part (26) comes into contact with the outer layer of the infusion port, the first arc-shaped transition part (30) at one end of the first crossbar (28) and the second arc-shaped transition part (31) at one end of the second crossbar (29) fit together. In this way, the horizontal cavity formed by the first arc-shaped transition part (30) and the second arc-shaped transition part (31) is located directly above the infusion port, which limits the infusion needle (35).

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