Safe port with compression-resistant structure

Abstract

Disclosed in the present invention is a safe port with a compression-resistant structure, comprising a port seat, a liquid storage cavity arranged in the port seat, and an injection seat arranged at the top of the liquid storage cavity. The injection seat comprises a puncture part and a limiting part arranged on the periphery of the puncture part. A mounting groove is arranged in the port seat, an opening is formed at the top of the mounting groove, and the liquid storage cavity is arranged in the mounting groove. A clearance groove is arranged at the cavity bottom of the liquid storage cavity. The clearance groove and the puncture part are coaxial, and the lowest point of the clearance groove is located on its axis. The height difference d1 between the lowest point of the clearance groove and the inner surface of the cavity bottom of the liquid storage cavity should be more than or equal to the height d2 of an arc-shaped concave surface protruding downwards during puncture. According to the present scheme, an upper and lower interlocking structure between the injection seat and the port seat is formed, and the compression-resistant performance of the injection seat is improved. The clearance groove at the cavity bottom of the liquid storage cavity ensures that a section of clearance space is correspondingly arranged between the liquid storage cavity and the center position where the springback amount is the largest of the injection seat, thereby achieving the height required for non-coring needle puncture and improving the safety performance of the port.

Description

Safety port with pressure-resistant structure Technical Field

[0001] The present invention relates to the field of medical devices, and in particular to a safe infusion port with a pressure-resistant structure. Background Art

[0002] An infusion port is a fully implantable infusion and drug delivery system, also known as an implantable drug delivery device. This system consists of a central venous catheter (CVC) connected to a device called an injection port. The entire device is completely implanted within the body, offering advantages such as long-term indwelling time and minimal complications.

[0003] The existing infusion port structure, such as the utility model patent with authorization announcement number CN219271762U, includes a port seat, a liquid storage cavity is provided in the port seat, and an injection seat is fixedly provided on the top of the liquid storage cavity. This type of infusion port structure increases the distance between the bottom of the liquid storage cavity and the lower surface of the injection seat by setting the bottom of the injection seat to an upward concave arc surface. However, the increased distance still cannot prevent the non-damaged needle from touching the bottom of the liquid storage cavity, causing curling at the needle tip. Moreover, when the non-damaged needle with curling is pulled out, the curling at the needle tip touches the injection seat, which will produce dandruff, thereby causing infusion. If the liquid port is clogged or the sealing performance of the infusion port is affected, if the height of the liquid storage cavity is further increased, the overall height of the infusion port will also increase, which will reduce the comfort of the infusion port implantation. In order to solve the problem of the curled edge of the non-invasive needle scratching the injection seat, the invention patent with publication number CN115671436A uses a non-invasive needle of a specific shape to puncture the injection seat, ensuring that when the injection seat is pulled out, the curled edge of the bottom will not touch the injection seat and generate debris, thereby improving the safety performance of the infusion port. However, there are still some problems with the above products: 1. The injection seat is generally made of The port is made of a silicone material with a certain elasticity. In order to ensure the sealing performance of the infusion port, it is generally necessary to compress the injection seat when assembling the injection seat. However, in the above-mentioned infusion port, although the top of the injection seat is pressed and fixed with the port seat, due to the uneven force on the upper and lower parts of the injection seat, if the injection seat and the port seat are not assembled tightly enough, the pressure resistance of the infusion port is poor, and the injection seat is prone to partial explosion, and the safety performance is poor; 2. The injection seat will deform when punctured. Since the periphery of the injection seat is fixed to the port seat, the closer to its center the structural support force is, the smaller the puncture force is. The larger the shape, the greater the rebound, but the product does not set a corresponding reinforcement structure or avoidance structure for the middle puncture area under greater pressure, so it is still impossible to avoid the curling of the needle tip of the non-destructive needle. Therefore, a specific non-destructive needle must be used to avoid the curling of the needle tip from easily scraping the injection seat when the non-destructive needle is pulled out. However, when the non-destructive needle is pulled out, if the position of the infusion port or the withdrawal angle changes, the curling at the needle tip may still scrape the injection seat and produce dandruff; 3. One side of the bent portion of the non-destructive needle end of the specific shape used in the above-mentioned infusion port assembly protrudes from the outside of the needle tube. The protruding part will form lateral extrusion on the injection seat during the puncture and withdrawal of the non-destructive needle, thereby affecting the sealing of the infusion port. In addition, the protruding side of the bent portion is located on the side where the needle tip cutting edge of the non-destructive needle is located. Therefore, during the puncture and withdrawal process, the blade surface of the non-destructive needle is in contact with the injection seat, which is also easy to scrape the injection seat, producing dandruff, affecting the safety performance of the infusion port.

[0004] Summary of the Invention

[0005] Therefore, in order to solve the above problems, the present invention provides a safe infusion port with a pressure-resistant structure.

[0006] The present invention is achieved through the following technical solutions:

[0007] The urn is fixed with a top end face and a bottom end face of the urn, and the urn is fixed with a top end face and a bottom end face of the urn. The limiting groove, the injection seat is fixed on the top of the liquid storage cavity, and the second limiting part is embedded in the limiting groove, the top of the limiting boss is in contact with the arc-shaped concave surface, and the arc-shaped concave surface is squeezed upward, and the top opening of the mounting groove is bent toward its inner circumference to form a circle of bending part, the bending part wraps the first limiting part, and the top end of the bending part is embedded in the annular groove after bending, and squeezes the bottom of the annular groove downward, so that the bending part and the limiting boss together form an interlocking structure at the upper and lower ends of the injection seat; the bottom of the liquid storage cavity is provided with an avoidance groove, the avoidance groove is coaxial with the puncture part, and the lowest point of the avoidance groove is located on its axis, and the height difference d1 between the lowest point of the avoidance groove and the inner surface of the bottom of the liquid storage cavity should be greater than or equal to the height d2 of the arc-shaped concave surface protruding downward when punctured, and the value of d2 is inversely proportional to the pressure resistance P of the injection seat.

[0008] Preferably, the avoidance groove is an arc-shaped groove.

[0009] Preferably, the first limiting portion and the second limiting portion are both annular.

[0010] Preferably, the first limiting portion and the second limiting portion are arranged correspondingly in the upper and lower parts, and the part of the bent portion embedded in the annular groove and the limiting boss are arranged correspondingly in the upper and lower parts.

[0011] Preferably, the height of the arc-shaped convex surface is greater than the height of the bent portion.

[0012] Preferably, a plurality of force-equalizing ribs are arranged at equal angles in the annular groove of the injection seat, and the force-equalizing ribs are all protrudingly arranged at the bottom of the installation groove.

[0013] Preferably, the bottom of the liquid storage cavity is provided with a plurality of reinforcing ribs at equal angles along the circumference of the avoidance groove, and the reinforcing ribs extend outward from the avoidance groove. The reinforcing ribs include a recessed portion provided on the inner surface of the bottom of the liquid storage cavity and a reinforcing portion protruding from the outer surface of the bottom of the cavity.

[0014] Preferably, a liquid outlet is provided on the side wall of the liquid storage cavity, and a connecting pipe mounting seat is provided on the port seat corresponding to the liquid outlet. A connecting pipe is passed through the connecting pipe mounting seat, and the pipe mouth of the connecting pipe is coaxially arranged with the liquid outlet.

[0015] Preferably, the top edge of the liquid storage cavity is extended along its periphery to form an outer edge, and the outer edge is embedded in the groove wall of the installation groove.

[0016] The beneficial effects of the technical solution of the present invention are mainly reflected in:

[0017] 1. An avoidance groove is coaxially arranged at the bottom of the liquid storage chamber, and the lowest point of the avoidance groove is located on the axis of the avoidance groove, ensuring that a section of avoidance space is arranged corresponding to the center position of the liquid storage chamber and the injection seat with the largest rebound amount, and ensuring that the height difference d1 between the lowest point of the avoidance groove and the inner surface of the bottom of the liquid storage chamber is greater than or equal to the height d2 of the arc-shaped concave surface protruding downward when being punctured, so that the height difference between the inner surface of the bottom of the liquid storage chamber and the injection seat is balanced, achieving the height space required for non-destructive needle puncture, avoiding the curling of the needle tip of the non-destructive needle and causing the injection seat to be scratched, improving the safety performance of the infusion port, and on this basis, it is also beneficial to further reduce the height of the product and improve the comfort of patients using the product. In addition, reinforcing ribs are arranged around the avoidance groove at the bottom of the liquid storage chamber to strengthen the structural strength of the bottom of the liquid storage chamber.

[0018] 2. An upper and lower interlocking structure is formed between the injection seat and the port seat. The limiting boss arranged in the mounting groove squeezes the arc-shaped concave surface upward, and the bent portion arranged at the top of the mounting groove squeezes the bottom of the annular groove downward, and the limiting boss and the part of the bent portion embedded in the annular groove correspond to each other up and down, so that the bent portion and the limiting boss jointly form an interlocking structure at the upper and lower ends of the injection seat. At the same time, the first limiting portion and the second limiting portion are arranged correspondingly up and down, and the bent portion and the first limiting portion abut against each other, and the second limiting portion and the limiting groove abut against each other, further enhancing the installation stability and airtightness of the injection seat and the port seat, thereby improving the pressure resistance of the injection seat, preventing the injection seat from exploding, and improving the safety performance of the infusion port.

[0019] 3. Several equalizing ribs are arranged at equal angles in the annular groove of the injection seat, and the positioning part on the top of the port seat is embedded in the annular groove to ensure that when the injection seat is punctured by a non-damaging needle and deformed, the annular groove and the positioning part can be evenly stressed in the abutment state, preventing local explosion due to uneven force, and having good compressive performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] FIG1 is a cross-sectional view of a safety port with a pressure-resistant structure in a state ready for puncture;

[0021] FIG2 is a cross-sectional view of a safety port with a pressure-resistant structure in a puncture state (with the intact needle not penetrating the fluid reservoir);

[0022] FIG3 is a cross-sectional view of a safety port with a pressure-resistant structure after puncture completion;

[0023] FIG4 is a cross-sectional view of an injection seat in a safety infusion port having a pressure-resistant structure;

[0024] FIG5 is a perspective view of an injection seat in a safety infusion port with a pressure-resistant structure;

[0025] FIG6 is a schematic diagram of the installation of an injection port with a pressure-resistant structure;

[0026] FIG7 is an enlarged view of portion A in FIG6 . DETAILED DESCRIPTION

[0027] To more clearly and in detail illustrate the objectives, advantages, and features of the present invention, the following non-limiting description of preferred embodiments is provided for illustration and explanation. This embodiment is merely a typical example of the application of the technical solution of the present invention. Any technical solution formed by equivalent substitution or equivalent transformation falls within the scope of protection claimed by the present invention.

[0028] It is also stated that in the description of the scheme, it should be noted that the terms "center", "up", "down", "left", "right", "front", "back", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of description and simplified description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0029] Furthermore, the terms "first" and "second" in this solution are used for descriptive purposes only and should not be construed as indicating or implying a ranking of importance or implicitly specifying the number of technical features shown. Therefore, features defined as "first" or "second" may explicitly or implicitly include one or more of such features. In the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0030] The present invention discloses a safe infusion port with a pressure-resistant structure, as shown in Figures 1 to 3, comprising a port seat 6, a liquid storage cavity 10 arranged in the port seat 6, and an injection seat 1 arranged on the top of the liquid storage cavity 10, the injection seat 1 is fixed to the port seat 6, the injection seat 1 comprises a puncture portion and a limiting portion arranged on the periphery of the puncture portion, the upper surface of the puncture portion is an upwardly convex arc convex surface 2, the lower surface of the puncture portion is an upwardly concave arc concave surface 3, the arc convex surface 2 and the arc concave surface 3 are coaxially arranged, the limiting portion comprises a first limiting portion 4 arranged at intervals on the periphery of the arc convex surface 2, an annular groove 14 formed between the arc convex surface 2 and the first limiting portion 4, and a second limiting portion 5 arranged on the periphery of the arc concave surface 3, the puncture portion is used for non-destructive needle puncture and injection of liquid medicine, and the limiting portion is used to cooperate and fix the injection seat 1 with the port seat 6.

[0031] The port seat 6 is provided with a mounting groove for accommodating and fixing the liquid storage cavity 10 and the injection seat 1. The top of the mounting groove is open, and the liquid storage cavity 10 is provided in the mounting groove. The mounting groove is provided with a circle of limiting bosses 8 on the top of the liquid storage cavity 10, and a limiting groove 9 is further provided on the periphery of the limiting boss 8. The limiting groove 9 is consistent with the shape and size of the second limiting portion 5. The injection seat 1 is fixed on the top of the liquid storage cavity 10, and the second limiting portion 5 is embedded in the limiting groove 9. The top of the limiting boss 8 is in contact with the arc-shaped concave surface 3 and presses the arc-shaped concave surface 3 upward. The top opening of the mounting groove is bent toward its inner periphery to form a circle of bending. The bending portion 7, the bending part of the bending portion 7 wraps the first limiting portion 4, and the top end of the bending portion 7 is embedded in the annular groove 14 after bending, and presses the bottom of the annular groove 14 downward, so that the bending portion 7 and the limiting boss 8 together form an interlocking structure located at the upper and lower ends of the injection seat 1. During the installation process, as shown in Figure 6, the injection seat 1 is first placed in the installation groove, and it is ensured that the second limiting portion 5 is embedded in the limiting groove 9, and then the edge of the top opening of the port seat 6 is bent inward to form a bending portion 7. The bending part of the bending portion 7 wraps the first limiting portion 4, and its top end is embedded in the annular groove 14 after bending, and presses the bottom of the annular groove 14 downward.

[0032] As shown in Figures 1 to 3, in order to ensure the safety of puncture, the minimum distance d0 between the arcuate concave surface 3 and the inner surface of the bottom of the liquid storage chamber 10 should reach the height required for non-destructive needle puncture. The height can be adjusted according to the needs of different product models and will not be described in detail here. Comparing Figures 1, 2 and 3, since the injection seat 1 will deform when being punctured, the distance between the arcuate concave surface 3 and the inner surface of the bottom of the liquid storage chamber 10 will become shorter after deformation, and the limit portion on the periphery of the injection seat 1 is fixed to the port seat 6 to generate structural support force. Therefore, the deformation of the part of the edge of the puncture portion close to the limit portion is small, but the closer to the center of the puncture portion, the smaller the structural support force, the greater the puncture force deformation, and the greater the rebound. Therefore, an avoidance groove 11 needs to be provided at the center of the bottom of the liquid storage chamber 10. The avoidance groove 11 is coaxial with the puncture portion, and the lowest point of the avoidance groove 11 is located on its axis. Since the avoidance groove 11 is coaxial with the puncture portion, the lowest point of the avoidance groove 11 is located on its axis. The puncture part is coaxially arranged, so the center point of the avoidance groove 11 and the puncture part are both located on the axis of the two. Since the deformation of the center of the puncture part is the largest when the injection seat 1 is punctured by a non-destructive needle, by setting the lowest point of the avoidance groove 11 at the intersection of the avoidance groove 11 and the axis (center point), it can be ensured that the lowest point of the liquid storage chamber 10 corresponds to the center point of the arc-shaped concave surface 3 above and below, and it can be ensured that even when the puncture position is located at the center point with the largest rebound amount of the puncture part, the height required for non-destructive needle puncture can be achieved. At the same time, the upward concave structural feature of the arc-shaped concave surface 3 also provides a certain height space for the deformation of the bottom of the puncture part, further improving the safety performance of the infusion port; in addition, since the avoidance groove 11 provides a certain avoidance height for the area with a larger deformation of the puncture part, the spacing distance between the liquid storage chamber 10 and the injection seat 1 can be appropriately reduced, thereby reducing the overall height of the product and improving the comfort of product use.

[0033] As shown in Figure 3, in order to ensure that the distance between the bottom of the avoidance groove 11 and the bottom of the injection seat 1 can reach the height required for non-destructive needle puncture, it is necessary to ensure that the height difference d1 between the lowest point of the avoidance groove 11 and the inner surface of the bottom of the liquid storage chamber should be greater than or equal to the height d2 of the arc-shaped concave surface 3 protruding downward during puncture, so as to avoid the non-destructive needle from contacting the bottom of the liquid storage chamber 10 and curling up.

[0034] Among them, the numerical change of the d2 conforms to the functional relationship d2=f(P), and the variable factors in the functional relationship include the pressure resistance P of the injection seat, the injection environment temperature, the material of the non-damaged needle, etc., among which the variable factor that mainly affects the size of d2 is the pressure resistance P of the injection seat; after multiple experiments, the inventor obtained multiple pairs of d2 and P values, and brought these values ​​into programs with linear fitting functions such as MATLAB for linear fitting, and obtained that the value of the d2 is approximately inversely proportional to the value of the pressure resistance P of the injection seat. The specific formula is: d2(mm)=1 / 10P(bar); wherein, the pressure resistance P of the injection seat is determined by the material properties of the injection seat itself.

[0035] In some embodiments, the avoidance groove 11 is an arc-shaped groove, which can correspond to the shape change of the arc-shaped concave surface 3 after being punctured. The radius and curvature of the avoidance groove 11 can be adjusted accordingly. Specifically, the avoidance groove 11 needs to correspond to the area where the middle part of the arc-shaped concave surface 3 of the injection seat 1 is more obviously deformed when being punctured. In a preferred embodiment, the avoidance groove 11 is a hemispherical groove.

[0036] As shown in Figures 1 to 3, in a preferred embodiment, the first limiting portion 4 and the second limiting portion 5 are arranged in correspondence with each other up and down. When the injection seat 1 is installed in the port seat 6, the first limiting portion 4 abuts against the bent portion 7, and the second limiting portion 5 abuts against the limiting groove 9. At the same time, since the top of the bent portion 7 is embedded in and presses the annular groove downward, the limiting boss presses the arc-shaped concave surface upward, and the part of the bent portion 7 embedded in the annular groove is arranged in correspondence with the limiting boss up and down, further strengthening the upper and lower interlocking structure between the injection seat 1 and the port seat 6. On the one hand, it improves the stability and tightness of the installation structure of the injection seat 1 and the port seat 6. On the other hand, it can adapt to the structural deformation of the injection seat 1 under pressure. Under the premise of the same material thickness and strength performance, the pressure resistance is improved, and the pressure resistance and safety performance of the infusion port are improved.

[0037] As shown in Figures 6 and 7, in order to further ensure the tightness of the assembly between the port seat 6 and the injection seat 1 and reduce the product height, when assembling the injection seat 1 and the port seat 6, before bending the edge of the top opening of the port seat 6 inward, apply downward pressure to the injection seat 1, so that the limiting boss 8 forms a reaction force and squeezes the injection seat 1 after contacting the lower surface of the injection seat 1. After the assembly is completed, the top of the limiting boss 8 is in contact with the lower surface of the injection seat 1.

[0038] In some embodiments, the first limiting portion 4 and the second limiting portion 5 are both annular, and the limiting groove 9 is an annular limiting groove 9 that matches the second limiting portion 5 .

[0039] In some embodiments, the height of the arc-shaped convex surface 2 is greater than the height of the bent portion 7, which can reduce the overall height of the product. When the elastic puncture portion is located at the top of the infusion port, it can improve the comfort of product use and facilitate puncture positioning.

[0040] In some embodiments, a number of equalizing ribs 13 are arranged at equal angles in the annular groove 14 of the injection seat 1, and the equalizing ribs 13 are all protruding at the bottom of the installation groove. When the top of the bending portion 7 is embedded in the annular groove 14 and a certain extrusion pressure is applied to the injection seat 1, the equalizing ribs 13 distributed at equal angles in the annular groove 14 can ensure uniform force and prevent local explosion due to uneven force.

[0041] In some embodiments, a plurality of reinforcing ribs 12 are provided at equal angles along the circumference of the avoidance groove 11 at the bottom of the liquid storage chamber 10, and the reinforcing ribs 12 extend outward from the avoidance groove 11. The reinforcing ribs 12 include a recessed portion provided on the inner surface of the bottom of the liquid storage chamber 10 and a reinforcing portion protruding from the outer surface of the bottom of the chamber, which are used to improve the structural strength of the bottom of the liquid storage chamber 10. At the same time, an avoidance space other than the avoidance groove 11 is provided for the bottom of the liquid storage chamber 10. In one embodiment, four reinforcing ribs 12 of the same shape are provided at equal angles around the circumference of the avoidance groove 11 to form a cross reinforcement structure.

[0042] In some embodiments, a liquid outlet is provided on the side wall of the liquid storage chamber 10, and the port seat 6 is provided with a connecting pipe mounting seat corresponding to the liquid outlet. A connecting pipe is passed through the connecting pipe mounting seat, and the pipe mouth of the connecting pipe is coaxially arranged with the liquid outlet to ensure that the connecting pipe is in communication with the liquid storage chamber 10.

[0043] In some embodiments, the liquid storage chamber 10 is fixed to the bottom of the mounting groove of the port seat 6, and the top edge of the liquid storage chamber 10 is extended along its periphery to form a circle of outer eaves 15. The outer eaves 15 are embedded in the groove wall of the mounting groove to ensure the tightness of the assembly of the liquid storage chamber 10 and the port seat 6. In some embodiments, a developing structure (not shown in the figure) can also be provided at the bottom of the liquid storage chamber 10. The pattern of the developing structure is mirrored at the top view angle and the top view angle, which is used to observe whether the infusion port is flipped through the developed image during use. The shape of the developing structure can be adjusted as needed, which will not be elaborated here.

[0044] There are many implementation methods of the present invention, and all technical solutions formed by equivalent transformation or equivalent transformation fall within the protection scope of the present invention.

Claims

1. A safety infusion port with a pressure-resistant structure, comprising a port seat, a fluid storage cavity disposed within the port seat, and an injection seat disposed on top of the fluid storage cavity, wherein the injection seat is fixed to the port seat, and characterized in that: The injection seat includes a puncture part and a limiting part arranged on the outer periphery of the puncture part, the upper surface of the puncture part is an upwardly protruding arc-shaped convex surface, the lower surface of the puncture part is an upwardly recessed arc-shaped concave surface, and the arc-shaped convex surface and the arc-shaped concave surface are coaxial; the limiting part includes a first limiting part arranged at intervals on the outer periphery of the arc-shaped convex surface, an annular groove formed between the arc-shaped convex surface and the first limiting part, and a second limiting part arranged on the outer periphery of the arc-shaped concave surface, a mounting groove is provided in the port seat, the top of the mounting groove is open, and the liquid storage cavity is provided in the mounting groove, the mounting groove is provided with a circle of limiting bosses at the top of the liquid storage cavity, and a limiting groove is provided on the outer periphery of the limiting bosses, the injection seat is fixed on the top of the liquid storage cavity, and the second limiting part is embedded in the limiting bosses In the positioning groove, the top of the limiting boss abuts against the arc-shaped concave surface and squeezes the arc-shaped concave surface upward. The top opening of the mounting groove is bent toward its inner circumference to form a circle of bending portion. The bending portion wraps the first limiting portion, and the top of the bending portion is embedded in the annular groove after bending, and squeezes the bottom of the annular groove downward, so that the bending portion and the limiting boss together form an interlocking structure at the upper and lower ends of the injection seat; the bottom of the liquid storage chamber is provided with an avoidance groove, which is coaxial with the puncture portion, and the lowest point of the avoidance groove is located on its axis. The height difference d1 between the lowest point of the avoidance groove and the inner surface of the bottom of the liquid storage chamber should be greater than or equal to the height d2 of the arc-shaped concave surface protruding downward when punctured, and the value of d2 is inversely proportional to the pressure resistance P of the injection seat.

2. The safety port with a pressure-resistant structure according to claim 1, characterized in that: The avoidance groove is an arc-shaped groove.

3. The safety infusion port with a pressure-resistant structure according to claim 1, characterized in that: The first limiting portion and the second limiting portion are both ring-shaped.

4. The safety infusion port with a pressure-resistant structure according to claim 1, characterized in that: The first limiting portion and the second limiting portion are arranged correspondingly in the upper and lower parts, and the portion of the bent portion embedded in the annular groove and the limiting boss are arranged correspondingly in the upper and lower parts.

5. The safety infusion port with a pressure-resistant structure according to claim 1, characterized in that: The height of the arc-shaped convex surface is greater than the height of the bent portion.

6. The safety infusion port with a pressure-resistant structure according to claim 1, characterized in that: A plurality of force-equalizing ribs are arranged at equal angles in the annular groove of the injection seat, and the force-equalizing ribs are all protrudingly arranged at the bottom of the installation groove.

7. The safety port with a pressure-resistant structure according to claim 1, characterized in that: The bottom of the liquid storage cavity is provided with a number of reinforcing ribs at equal angles along the circumference of the avoidance groove, and the reinforcing ribs extend outward from the avoidance groove. The reinforcing ribs include a recessed portion provided on the inner surface of the bottom of the liquid storage cavity and a reinforcing portion protruding from the outer surface of the bottom of the cavity.

8. The safety infusion port with a pressure-resistant structure according to claim 1, characterized in that: A liquid outlet is provided on the side wall of the liquid storage cavity, and a connecting pipe mounting seat is correspondingly provided outside the liquid outlet. A connecting pipe is passed through the connecting pipe mounting seat, and the pipe mouth of the connecting pipe is coaxially arranged with the liquid outlet.

9. The safety infusion port with a pressure-resistant structure according to claim 1, characterized in that: The top edge of the liquid storage cavity is extended along the periphery thereof to form an outer eave, and the outer eave is embedded in the groove wall of the installation groove.

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