CN218391783U - Infusion port sealing structure and infusion port - Google Patents
Infusion port sealing structure and infusion port Download PDFInfo
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- CN218391783U CN218391783U CN202221692772.2U CN202221692772U CN218391783U CN 218391783 U CN218391783 U CN 218391783U CN 202221692772 U CN202221692772 U CN 202221692772U CN 218391783 U CN218391783 U CN 218391783U
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Abstract
The utility model discloses a sealing structure of an infusion port and the infusion port, wherein the sealing structure of the infusion port comprises a medium pipeline and a port seat, the medium pipeline is provided with a circulation cavity and comprises a sealing part, and the sealing part is convexly formed on the outer wall surface of the medium pipeline; the harbor seat comprises a guide part; the end of the medium pipe is inserted into the guide portion under an external force, and the sealing portion has a biasing force of pressing the guide portion to seal a closed state of the connection between the medium pipe and the harbor. The transfusion port sealing structure with the structure is formed on the outer wall surface of the medium pipeline in a protruding mode, when the medium pipeline is inserted into the guide portion of the port seat, the sealing portion is connected between the medium pipeline and the port seat in an interference fit mode, the sealing effect between the end portion of the medium pipeline and the port seat is achieved, and the transfusion port sealing structure has good sealing performance and reliability.
Description
Technical Field
The utility model relates to the technical field of medical equipment, concretely relates to infusion port seal structure and infusion port.
Background
Implantable access ports, referred to as "ports," such as central venous access ports, provide an easy way to repeatedly deliver substances to distal regions of the body via attached catheters without the need for surgery each time. The port may be implanted in the body and allow for the infusion of drugs, parenteral solutions, blood products or other fluids.
In the prior art, a connecting pipe of an infusion port is usually connected with an infusion port structure in an adhesion mode, an adhesive is coated on the end part of the connecting pipe, the end part of the connecting pipe is inserted into a preset mounting hole on the infusion port structure, and an adhesion layer is formed after the adhesive is solidified, so that the connecting pipe is fixedly connected with the infusion port structure; however, after the connecting pipe is inserted into the mounting hole, the forming quality and effect of the bonding layer are difficult to ensure, and when the transfusion port structure is used for a long time, the sealing connection between the connecting pipe and the transfusion port is not good, so that the problems of insufficient sealing capability and low reliability exist.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that the sealing connection between connecting pipe and the infusion port is not good in the prior art, has the defects of insufficient sealing capability and low reliability.
The utility model provides a seal structure of transfusion port, include:
a medium pipe having a circulation chamber adapted to circulate a medium, the medium pipe including a seal portion formed to be convex on an outer wall surface of the medium pipe;
a port seat comprising a guide portion adapted for insertion of the media conduit, the seal portion being disposed adjacent an outer edge of the insertion end of the media conduit; the end portion of the medium pipe is inserted into the guide portion under an external force, and the seal portion has a biasing force that presses the guide portion to seal a closed state of the connection between the medium pipe and the port seat.
Optionally, the sealing portion includes a connecting cylinder and a sealing skirt, the connecting cylinder is fixedly connected to the sealing skirt, the connecting cylinder is disposed on an outer wall surface close to the insertion end of the medium pipeline, and the sealing skirt is disposed on an outer wall surface far away from the insertion end of the medium pipeline.
Optionally, the guide part is a cylindrical cavity, and the sealing skirt is in a hollow circular truncated cone structure;
the outer diameter of the connecting cylinder is smaller than the diameter of the cylindrical cavity, and the outer diameter of the hollow circular truncated cone structure far away from the end face of the connecting cylinder is larger than the diameter of the cylindrical cavity.
Optionally, the sealing skirt is provided with a sealing wall surface, the sealing wall surface is arranged obliquely to the axial direction of the connecting cylinder, and the sealing wall surface has a taper which is suitable for the insertion of the end of the medium pipeline.
Optionally, the taper is 6-20 degrees.
Optionally, the medium pipeline further comprises a relief portion, and the relief portion is arranged adjacent to the sealing portion.
Optionally, the medium pipeline further includes a connecting portion, the connecting portion is disposed on an outer wall surface of the medium pipeline, and the connecting portion and the sealing portion are disposed at an interval;
the harbor base further comprises an installation part, and the installation part is arranged on the outer wall surface of the harbor base close to the guide part.
Optionally, the connecting portion is an annular stepped protrusion, the mounting portion is an annular stepped groove, and the annular stepped protrusion and the annular stepped groove are coaxially arranged in the closed state.
An infusion port includes an infusion port sealing structure.
Optionally, the port further comprises:
the port cover is detachably connected with the port seat, the port seat is provided with a liquid storage cavity suitable for storing media, and the liquid storage cavity is communicated with the circulation cavity.
The technical scheme provided by the utility model, following advantage has:
1. the utility model provides an infusion port sealing structure, including medium pipeline and port seat, the medium pipeline has the circulation chamber, the circulation chamber is suitable for the circulation medium, the medium pipeline includes the sealing, the sealing protrusion is formed on the outer wall of medium pipeline; the port seat comprises a guide part suitable for inserting the medium pipeline, and the sealing part is arranged at the outer edge close to the insertion end of the medium pipeline; the end portion of the medium pipe is inserted into the guide portion under an external force, and the seal portion has a biasing force that presses the guide portion to seal a closed state of the connection between the medium pipe and the port seat.
According to the transfusion port sealing structure with the structure, the sealing part is convexly formed on the outer wall surface of the medium pipeline and is arranged close to the outer edge of the insertion end of the medium pipeline, so that under the action of external force, when the medium pipeline is inserted into the guide part of the port seat, the sealing part can slide into the guide part, the sealing part forms the biasing force for extruding the guide part, the medium pipeline is connected with the port seat in an interference fit mode, the sealing effect between the end part of the medium pipeline and the port seat is achieved, the sealing performance of the transfusion port sealing structure is guaranteed, and the reliability of the transfusion port sealing structure is improved.
2. The utility model provides a seal structure of transfusion harbor, the sealing includes connecting cylinder and sealed skirt, the connecting cylinder with sealed skirt fixed connection, the connecting cylinder sets up and is being close to on the outer wall that the end was inserted to the medium pipeline, sealed skirt sets up and keeps away from on the outer wall that the end was inserted to the medium pipeline.
The transfusion harbor sealing structure of the structure inserts into the guide part of the harbor seat through the end part of the medium pipeline driven by external force, the connecting cylinder enters the harbor seat along the guide channel of the guide part, the connecting cylinder is in matched sliding connection with the guide part, and the sealing skirt and the connecting cylinder are enabled to be filled in a gap between the medium pipeline and the harbor seat through the abutting extrusion of the sealing skirt and the guide part, thereby realizing the sealing effect between the end part of the medium pipeline and the harbor seat.
3. The utility model provides an infusion port seal structure, the sealed skirt is equipped with the seal wall face, the seal wall face with the axis direction slope of connecting cylinder sets up, the seal wall face has the tapering, the tapering is suitable for the insertion of medium pipeline tip.
According to the transfusion port sealing structure, the sealing wall surface is arranged on the sealing skirt, when the end part of the external force driving medium pipeline is inserted into the guide part of the port seat, the obliquely arranged sealing wall surface is abutted against the guide part, and the sealing wall surface acts and extrudes the guide part to form sealing between the medium pipeline and the port seat; the end part of the medium pipeline is promoted to be inserted into the guide part through the taper on the sealing wall surface, and the taper direction of the medium pipeline is consistent with the insertion direction of the end part of the medium pipeline, so that the sealing part is promoted to slide into the guide part.
3. The utility model provides a seal structure of infusion port, the medium pipeline still lets the position portion, let the position portion with the sealing portion borders on the setting.
When the end part of the medium pipeline driven by external force is inserted into the guide part of the port seat, the guide part deforms and expands towards the space where the abdicating part is located through the extrusion of the seal part on the guide part, and the abdicating part is adjacent to the seal part, so that the deformation part of the guide part can be abutted against the side surface of the seal part, which is far away from the connecting cylinder, so that the seal part is limited in the guide part through the deformation of the guide part, and the whole connection is tight; meanwhile, the sealing capacity between the sealing part and the harbor seat is facilitated to be promoted, and the reliability of the sealing structure is improved.
4. An infusion port comprising an infusion port sealing structure and a port cap, the port cap being detachably connectable to the port base, the port base having a reservoir chamber adapted to store a medium, the reservoir chamber being in communication with a flow chamber.
The transfusion port of this structure, through the medium pipeline grafting port seat of exogenic action, make the medium pipeline go up fashioned sealing to form the biasing force of extrusion to the guide portion on the port seat, can form interference fit between medium pipeline and port seat and be connected to realize the closure that medium pipeline and port seat are connected, the circulation chamber of the fluid medium accessible medium pipeline of stock solution intracavity is to predetermineeing the position and transmitting the transportation, avoid fluid medium to take place to reveal from the junction of port seat and medium pipeline, the transfusion port has good reliability.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following descriptions are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural view of a medium pipeline in a sealing structure of a transfusion port provided in an embodiment of the present invention;
fig. 2 is a side view of a medium pipeline in a sealing structure of a transfusion port provided in an embodiment of the present invention;
fig. 3 is a schematic structural view of a port seat in a sealing structure of a transfusion port provided in an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a side view of an infusion port provided in an embodiment of the present invention;
fig. 5 is a cross-sectional view of an infusion port provided in an embodiment of the present invention;
FIG. 6 is an enlarged view of a portion of FIG. 5 at A;
fig. 7 is an exploded view of a port provided in an embodiment of the present invention;
the structure schematic diagram of the transfusion port provided in the embodiment of the utility model;
description of the reference numerals:
1-a medium line; 11-a seal; 111-a connector barrel; 112-sealing skirt; 12-a bit-letting part; 13-a connecting part;
2-harbor seat; 21-a guide; 22-a mounting portion;
3-port cover.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but 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 thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected," "connected," and "connecting" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.
In the following description, the proximal end is the side of the apparatus closer to the operator when in use, and the distal end is the side farther from the operator.
Furthermore, the technical features mentioned in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.
Example 1
The embodiment provides a sealing structure of a transfusion port, as shown in fig. 1 to 3, comprising a medium pipeline 1 and a port seat 2, wherein the medium pipeline is provided with a circulation cavity, the circulation cavity is suitable for circulating a medium, the medium pipeline comprises a sealing part 11, and the sealing part 11 is convexly formed on the outer wall surface of the medium pipeline 1; the port seat 2 comprises a guide part 21 suitable for inserting the medium pipeline 1, and a sealing part 11 is arranged at the outer edge close to the insertion end of the medium pipeline; the end of the medium pipe 1 is inserted into the guide portion 21 by an external force, and the sealing portion 11 has a biasing force pressing the guide portion 21 to seal a closed state of the connection between the medium pipe 1 and the port 2.
The transfusion port sealing structure provided by the embodiment is formed by protruding the sealing part 11 on the outer wall surface of the medium pipeline 1 and is arranged at the outer edge close to the insertion end of the medium pipeline, so that under the action of external force, when the medium pipeline is inserted into the guide part 21 of the port base 2, the sealing part 11 can slide into the guide part 21, so that the sealing part 11 forms the biasing force for extruding the guide part 21, and further, the sealing part is connected with the port base 2 in an interference fit manner, the sealing effect between the end part of the medium pipeline 1 and the port base 2 is realized, the medium pipeline 1 and the port base 2 are sealed and locked through the sealing part 11, the sealing performance of the transfusion port sealing structure is ensured, and the reliability of the transfusion port sealing structure is improved.
In the sealing structure of the port, the sealing portion 11 includes a connecting cylinder 111 and a sealing skirt 112, the connecting cylinder 111 is fixedly connected to the sealing skirt 112, the connecting cylinder 111 is disposed on an outer wall surface close to the insertion end of the media conduit, and the sealing skirt 112 is disposed on an outer wall surface far from the insertion end of the media conduit. The end part of the medium pipeline is driven to be inserted into the guide part 21 of the harbor base 2 through external force, the connecting cylinder 111 enters the harbor base 2 along a guide channel where the guide part 21 is located, the connecting cylinder 111 is in matched sliding connection with the guide part 21, and the sealing skirt 112 and the connecting cylinder 111 are filled in a gap between the medium pipeline and the harbor base 2 through abutting extrusion of the sealing skirt 112 and the guide part 21, so that the sealing effect between the end part of the medium pipeline 1 and the harbor base 2 is realized.
In the sealing structure of the port of infusion according to the present embodiment, as shown in fig. 5 and 6, the sealing skirt 112 has a sealing wall surface which is inclined in the axial direction of the connecting cylinder 111, and the sealing wall surface has a taper which is suitable for insertion of the end of the medium line 1. The seal skirt 112 is provided with a seal wall surface, and when the end of the externally driven medium pipe is inserted into the guide portion 21 of the harbor 2, the seal wall surface obliquely arranged abuts against the guide portion 21, and the seal wall surface acts to press the guide portion 21 to form a seal between the medium pipe 1 and the harbor 2; the taper on the sealing wall surface facilitates the insertion of the end of the medium pipe 1 into the guide portion 21, and the taper direction of the end of the medium pipe 1 coincides with the insertion direction of the end of the medium pipe 1, thereby facilitating the sliding of the sealing portion 11 into the guide portion 21.
The sealing structure of the infusion port provided by the embodiment has the taper of 6-20 degrees, and the sealing wall surface has smaller taper, so that the sealing wall surface can contact and press the guide part 21 to form a reliable sealing state, and simultaneously, the sealing part 11 is prevented from generating larger pressing acting force between the sealing part 11 and the guide part 21, and the sealing part 11 slides out of the port seat 2 along the guide direction of the guide part 21.
As shown in fig. 1, 2, and 6, the seal structure for a port according to the present embodiment further includes a relief portion 12, and the relief portion 12 is provided adjacent to the seal portion 11. The yielding part 12 is used for providing a squeezing deformation space of the guide part 21, when the end part of the external force driving medium pipeline is inserted into the guide part 21 of the harbor seat 2, the guide part 21 is squeezed by the sealing part 11 to deform and expand the space where the yielding part 12 is located, the yielding part 12 is adjacent to the sealing part 11, the deformed part of the guide part 21 can be abutted to the side surface of the sealing part 11 which is far away from the connecting cylinder 111, and the sealing part 11 is limited in the guide part 21 through the deformation of the guide part 21, so that the whole connection is tight; and simultaneously, the sealing and sealing capacity between the sealing part 11 and the harbor seat 2 is promoted, and the reliability of the sealing structure is improved.
In the sealing structure of the infusion port according to the embodiment, the medium pipeline 1 is made of a titanium alloy material, the port seat 2 is made of a plastic material, the hardness of the sealing part 11 is greater than that of the guide part 21, the guide part 21 is extruded by the sealing part 11, so that the deformed part of the guide part 21 extends and expands towards the displacement part 12, and elastic sealing is formed between the sealing part 11 and the guide part 21 by the extrusion acting force.
In the sealing structure of the infusion port according to the present embodiment, as shown in fig. 1 to 3, the guiding portion 21 is a cylindrical cavity, and the sealing skirt 112 is a hollow circular truncated cone structure; the outer diameter of the connecting cylinder 111 is smaller than the diameter of the cylindrical cavity, the connecting cylinder 111 can slide into the guide part 21, the outer diameter of the connecting cylinder 111 is slightly smaller than the diameter of the cylindrical cavity, and clearance fit can be adopted to reduce the clearance between the sealing part 11 and the guide part 21 and prevent fluid media from permeating between the sealing part 11 and the guide part 21; the outer diameter of the hollow circular truncated cone structure far away from the end face of the connecting cylinder 111 is larger than the diameter of the cylindrical cavity, so that interference fit connection is formed between the sealing part 11 and the guide part 21, and the effect of a closed state between the medium pipeline 1 and the port seat 2 is achieved.
As shown in fig. 1 to 3, the sealing structure for a port of infusion provided by the present embodiment further includes a connecting portion 13, the connecting portion 13 is disposed on an outer wall surface of the medium pipe 1, and the connecting portion 13 and the sealing portion 11 are disposed at an interval; the harbor 2 further comprises a mounting portion 22, and the mounting portion 22 is provided on an outer wall surface of the harbor 2 near the guide portion 21. The connection part 13 is connected with the mounting part 22 in a matching way, so that the contact area between the medium pipeline 1 and the port seat 2 can be increased, and the stability of the sealing structure of the transfusion port is promoted.
In the sealing structure of the infusion port according to the present embodiment, as shown in fig. 1 to 3, the connecting portion 13 is an annular stepped protrusion, the mounting portion 22 is an annular stepped recess, and the annular stepped protrusion and the annular stepped recess are coaxially arranged in a closed state. One end face of the annular stepped bulge is abutted with one end face of the annular stepped groove in a fit manner through the matching of the annular stepped bulge and the annular stepped groove, so that the connection strength between the medium pipeline 1 and the port seat 2 is enhanced, one end of the annular stepped bulge, which is opposite to the port seat 2, is suitable for being connected with an external sleeve (not shown in the figure), and the external sleeve is sleeved on the medium pipeline 1.
Example 2
The present embodiment provides an infusion port for subcutaneous implantation into the body, for example, the thoracic region of a human body, as shown in fig. 1 to 7, which includes an infusion port sealing structure, wherein the medium pipe 1 is inserted into the port seat 2 by external force, so that the sealing portion 11 formed on the medium pipe 1 exerts a biasing force of pressing the guide portion 21 on the port seat 2, and an interference fit connection is formed between the medium pipe 1 and the port seat 2, thereby achieving the sealing of the connection between the medium pipe 1 and the port seat 2.
The embodiment provides an infusion port, as shown in fig. 4, 5 and 7, further comprising a port cap 3, wherein the port cap 3 is detachably connected with a port seat 2, the port seat 2 is provided with a liquid storage cavity suitable for storing a medium, and the liquid storage cavity is communicated with a circulation cavity. Seal port seat 2 through port lid 3, the fluid medium is stored in the stock solution chamber, the infusion port can be implanted to human thorax position, the fluid medium accessible medium pipeline 1's of stock solution intracavity circulation chamber is to predetermineeing the position and transmitting the transportation to carry fluid medium to treat in the human body through the infusion port, utilize infusion port seal structure can avoid fluid medium to take place to reveal from port seat 2 and medium pipeline 1's junction, the infusion port has good reliability.
The method of use of the port provided in this embodiment is as follows:
firstly, assembling a medium pipeline 1 on a harbor seat 2, driving the end part of the medium pipeline 1 with a sealing part 11 to be inserted into a guide part 21 through external force, enabling a connecting cylinder 111 to slide relative to the guide part 21, enabling a sealing skirt 112 to be attached and abutted to the guide part 21, enabling the sealing skirt 112 to extrude the guide part 21 to extend and expand towards a yielding part 12, when a connecting part 13 on the medium pipeline 1 is abutted to an installation part 22 of the harbor seat 2, enabling the sealing skirt 112 to be limited in the guide part 21, enabling the sealing wall surface to be attached to the guide part 21, locking the guide part 21 and the sealing part 11, and completing the assembly between the medium pipeline 1 and the harbor seat 2; then, the port cover 3 is arranged at the upper end of the port seat 2, the liquid storage cavity of the port seat 2 is sealed through the port cover 3, and locking and sealing are carried out; finally, after the infusion port is debugged, the infusion port is implanted into the thoracic cavity tissue of the human body, the port cover 3 is punctured through an external needle tube, fluid medium is introduced into the liquid storage cavity, and the fluid medium in the liquid storage cavity is guided and delivered to a treatment area through the medium pipeline 1 and the external sleeve so as to treat the human body.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.
Claims (10)
1. An infusion port sealing structure, characterized by comprising:
a medium pipeline (1) which is provided with a circulation cavity suitable for circulating medium and comprises a sealing part (11), wherein the sealing part (11) is convexly formed on the outer wall surface of the medium pipeline (1);
a port seat (2), the port seat (2) comprising a guide portion (21) adapted for insertion of the media line (1), the sealing portion (11) being arranged at an outer edge adjacent to the inserted end of the media line; under the action of external force, the end part of the medium pipeline (1) is inserted into the guide part (21), and the sealing part (11) has a biasing force for pressing the guide part (21) so as to seal a closed state of the connection between the medium pipeline (1) and the port seat (2).
2. The port sealing structure according to claim 1, wherein the sealing portion (11) comprises a connecting cylinder (111) and a sealing skirt (112), the connecting cylinder (111) is fixedly connected with the sealing skirt (112), the connecting cylinder (111) is arranged on an outer wall surface close to the insertion end of the medium pipeline, and the sealing skirt (112) is arranged on an outer wall surface far away from the insertion end of the medium pipeline.
3. The port sealing structure according to claim 2, wherein the guiding portion (21) is a cylindrical cavity, and the sealing skirt (112) is a hollow circular truncated cone structure;
the outer diameter of the connecting cylinder (111) is smaller than the diameter of the cylindrical cavity, and the outer diameter of the end face of the connecting cylinder (111) far away from the hollow circular truncated cone structure is larger than the diameter of the cylindrical cavity.
4. The sealing structure for a port according to claim 2, wherein the sealing skirt (112) is provided with a sealing wall surface which is inclined to the axial direction of the connecting cylinder (111), and the sealing wall surface has a taper which is adapted to the insertion of the end of the medium pipe (1).
5. The sealing structure of the port of infusion according to claim 4, wherein the taper is 6-20 degrees.
6. The sealing structure for the port according to any one of claims 1 to 5, wherein the medium line (1) further comprises a relief portion (12), and the relief portion (12) is provided adjacent to the sealing portion (11).
7. The port sealing structure according to any one of claims 1 to 5, wherein the medium line (1) further comprises a connecting portion (13), the connecting portion (13) being provided on an outer wall surface of the medium line (1), the connecting portion (13) being provided spaced apart from the sealing portion (11);
the harbor seat (2) further comprises an installation part (22), wherein the installation part (22) is arranged on the outer wall surface of the guide part (21) close to the harbor seat (2).
8. The sealing structure of claim 7, wherein the connecting portion (13) is an annular stepped projection, and the mounting portion (22) is an annular stepped recess, and the annular stepped projection is coaxially arranged with the annular stepped recess in the closed state.
9. A port comprising the port sealing structure of any one of claims 1-8.
10. The port of claim 9, further comprising:
the port cover (3) is detachably connected with the port seat (2), and the port seat (2) is provided with a liquid storage cavity suitable for storing media, and the liquid storage cavity is communicated with the circulation cavity.
Priority Applications (1)
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CN202221692772.2U CN218391783U (en) | 2022-06-30 | 2022-06-30 | Infusion port sealing structure and infusion port |
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CN202221692772.2U CN218391783U (en) | 2022-06-30 | 2022-06-30 | Infusion port sealing structure and infusion port |
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CN218391783U true CN218391783U (en) | 2023-01-31 |
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CN202221692772.2U Active CN218391783U (en) | 2022-06-30 | 2022-06-30 | Infusion port sealing structure and infusion port |
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