Infusion assembly, puncture infusion apparatus and infusion system

Abstract

The utility model relates to an infusion assembly, a puncture infusion apparatus and an infusion system. The infusion assembly, the puncture infusion apparatus and the infusion system comprise an adapter, a revolution connector, a liquid storage device, an infusion adapter and an infusion tube. According to the infusion assembly, the puncture infusion apparatus and the infusion system, the guide part is arranged on the side, deviating from the first direction, of the penetrating part, so that the guide face of the guide part can provide direction guidance for movement of the revolution connector, deviation generated in the insertion and extraction process of the revolution connector is avoided, insertion and extraction of the revolution connector are smoother, and the infusion efficiency is improved. Meanwhile, deviation of the puncture needle in the moving process is avoided, it is guaranteed that only a puncture opening with a fixed track is formed in the skin, to be infused with medicine, of the patient, the skin, to be infused with medicine, of the patient and internal body tissue of the skin are protected, and the stability of the infusion assembly in the using process is improved.

Description

Technical Field

[0001] The present application relates to the technical field of infusion sets, and in particular to an infusion assembly, a puncture infusion set, and an infusion system. Background Art

[0002] When patients or doctors perform medical operations, such as injecting insulin or other medical liquids, they often use a puncture infusion set. The puncture infusion set includes a liquid infusion component and an infusion component. The infusion component includes an adapter and a male connector, which can be detachably mounted on the adapter. The adapter is fixed to the patient's skin where the drug is to be infused through a skin patch, so that when the infusion component is in use, the male connector can be selectively assembled on the adapter, and the drug can be pierced into the skin where the drug is to be infused and infused.

[0003] However, the mating surfaces of the adapter and the male connector of the existing infusion set are flat. Since there is no other component to guide the male connector during insertion and removal, the male connector is easily deviated during insertion and removal, which not only makes the insertion and removal of the male connector difficult, but also causes the puncture needle connected to the male connector to deviate, thereby causing unnecessary damage to the patient's skin where the drug is to be infused. Utility Model Content

[0004] Based on this, it is necessary to provide an infusion assembly, a puncture infusion set, and an infusion system to address the problem that the surfaces of the adapter and the male connector of the existing infusion set are flat, and the male connector is easily deviated during insertion and removal due to the lack of guidance from other components. This not only makes the insertion and removal of the male connector difficult, but also causes the puncture needle connected to the male connector to deviate, thereby causing unnecessary damage to the patient's skin where the drug is to be infused.

[0005] An infusion assembly includes: an adapter and a male connector;

[0006] The adapter seat comprises a piercing portion and a guiding portion connected to each other, wherein the piercing portion is located in a first direction of the guiding portion; and a puncture hole is provided on the piercing portion;

[0007] The guide portion has a guide surface, and the guide surface is used to guide the male rotatable joint to be detachably inserted into the adapter seat; the guide portion is provided with a first matching structure, and the male rotatable joint is provided with a second matching structure, and the first matching structure and the second matching structure are detachably engaged, wherein the first direction is the puncture direction of the puncture hole.

[0008] During actual use of the above-mentioned infusion assembly, the puncture needle on the male connector is first inserted into the puncture hole, and then the male connector is brought into contact with the guide surface, and the male connector moves along the first direction along the guide surface to fully insert the puncture needle into the puncture hole, and at the same time, the first matching structure and the second matching structure are detachably engaged, so that the male connector and the adapter seat are relatively fixedly connected, and the puncture needle is fully inserted into the puncture hole, and then the male connector and the adapter seat are released from the engagement, and the male connector is pulled out, that is, the puncture needle is pulled out, and then the male connector provided with the infusion needle is detachably engaged with the adapter seat through the first matching structure and the second matching structure, and the infusion needle is inserted into the puncture hole, that is, inserted into the skin for infusing the drug ... A guide portion is arranged on the side so that the guide surface of the guide portion can provide directional guidance for the movement of the male connector, thereby avoiding the fact that the matching surface of the adapter and the male connector is a plane, and the male connector is easily deviated during the insertion and removal process due to the lack of guidance of other components during the insertion and removal of the male connector, making the insertion and removal of the male connector smoother, and at the same time, the puncture needle connected to the male connector always moves in a straight line along the first direction during the insertion and removal of the male connector, thereby avoiding the puncture needle from deviating during the movement, ensuring that there is only a puncture port with a fixed trajectory on the skin of the patient to be infused with the drug, protecting the patient's skin to be infused with the drug and the body tissue inside the skin, etc., and improving the stability of the infusion component during use.

[0009] In one embodiment, the infusion assembly further comprises a skin patch, and the adapter is disposed on a side of the skin patch facing away from the skin.

[0010] In one embodiment, the infusion assembly further comprises a guide needle assembly, the guide needle assembly is inserted into the insertion portion, one end of the guide needle assembly along the first direction extends out of the puncture hole and is located on a side of the skin patch away from the adapter;

[0011] The acute angle formed by the guide needle assembly and the skin patch is a first angle value, and the acute angle formed by the guide surface and the skin patch is a first angle value.

[0012] In one embodiment, the guide needle assembly includes a guide needle and a guide connector, the guide connector gradually shrinks along the first direction, and the guide connector is penetrated through the penetration portion; one end of the guide needle is connected to the guide connector, and the other end extends out of the puncture hole and is located on the side of the skin patch away from the adapter.

[0013] In one embodiment, a puncture hole and a puncture blind hole connected to each other are opened on one side of the puncture portion close to the male rotary joint, the guide needle is inserted into the puncture hole, and the guide joint is located in the puncture blind hole.

[0014] In one embodiment, the guide needle assembly further comprises a guide plug, which is located in the blind hole and abuts against the hole wall of the blind hole, and the guide joint is penetrated through the guide plug and fixed relative to the guide plug.

[0015] In one embodiment, the guide needle assembly further comprises a guide block, wherein the guide block abuts against the guide plug on one side close to the guide needle, the guide block is connected to the opening of the blind hole, and the guide block is provided with a block hole along the first direction.

[0016] In one embodiment, the revolving joint is symmetrically arranged along a plane formed by the second direction and the first direction, and the revolving joint is symmetrically arranged along a plane formed by the third direction and the first direction;

[0017] The first direction, the second direction and the third direction are perpendicular to each other.

[0018] In one embodiment, the guide portion includes two groups of first matching structures spaced apart along the second direction;

[0019] The male rotatable joint comprises two groups of second matching structures spaced apart along the second direction, and a movable opening is formed between the two groups of the second matching structures;

[0020] Two groups of the second matching structures are respectively engaged with two groups of the first matching structures; wherein, as the size of the movable opening changes, the first matching structure and the second matching structure are adaptively connected, or the first matching structure and the second matching structure can be disconnected, and the second direction is perpendicular to the first direction.

[0021] In one embodiment, the male revolving joint includes at least two buckle plates, which enclose and form a movable opening, each of which is provided with a pressing portion and a second matching structure adapted to the first matching structure, the pressing portion is located on the outside of the movable opening, the second matching structure is located on the side of the buckle plate close to the movable opening, and the pressing portion can drive the connecting portion to move relative to the male revolving joint to change the size of the movable opening.

[0022] In one embodiment, at least one guide protrusion is provided on a side of the male revolving joint close to the penetration portion, and at least one guide hole is provided on a side of the penetration portion close to the male revolving joint along the first direction, and the guide protrusion is adapted to the guide hole.

[0023] In one embodiment, a puncture needle is provided on the male swivel joint, one end of the puncture needle is connected to the male swivel joint, and the other end is used to pass through the guide needle.

[0024] In one embodiment, an infusion needle is provided on the male swivel joint, one end of the infusion needle is connected to the male swivel joint, and the other end is used to pass through the guide needle.

[0025] The present application also provides a puncture infusion device, comprising a liquid reservoir, an infusion adapter, an infusion tube and the above-mentioned infusion assembly;

[0026] One end of the infusion adapter is connected to the liquid reservoir, and the other end is connected to the infusion tube;

[0027] One end of the infusion tube away from the infusion adapter is connected to the male adapter.

[0028] During actual use of the above-mentioned puncture infusion device, the puncture needle on the male connector is first inserted into the puncture hole, and then the male connector is abutted against the guide surface. The male connector moves along the first direction along the guide surface to fully insert the puncture needle into the puncture hole. At the same time, the first matching structure and the second matching structure are detachably engaged, so that the male connector and the adapter are relatively fixedly connected, and the puncture needle is fully inserted into the puncture hole. Then, the male connector and the adapter are released from the engagement, and the male connector is pulled out, that is, the puncture needle is pulled out. Then, the male connector provided with an infusion needle is detachably engaged with the adapter through the first matching structure and the second matching structure, and the infusion needle is inserted into the puncture hole, that is, into the skin. Then, by changing the pressure in the reservoir, the medicine in the reservoir is delivered into the patient's body through the infusion adapter, the infusion tube and the infusion assembly. Therefore, by arranging a guide portion on the side of the piercing portion away from the first direction, the guide surface of the guide portion can provide directional guidance for the movement of the male connector, thereby avoiding the situation where the male connector is easily deviated during the insertion and removal due to the lack of guidance from other components during the insertion and removal of the male connector due to the matching surface of the adapter and the male connector being a plane, making the insertion and removal of the male connector smoother, and at the same time, the puncture needle connected to the male connector always moves in a straight line along the first direction during the insertion and removal of the male connector, thereby avoiding the deviation of the puncture needle during the movement, ensuring that there is only a puncture port with a fixed trajectory on the skin of the patient to be infused with drugs, protecting the patient's skin to be infused with drugs and body tissues inside the skin, etc., and improving the stability of the puncture infusion device during use.

[0029] The present application also provides an infusion system, comprising the above-mentioned puncture infusion device or the above-mentioned infusion assembly.

[0030] In actual use of the above-mentioned infusion system, the puncture needle on the male connector is firstly inserted into the skin through the puncture hole, and then the male connector with the infusion needle is inserted into the puncture hole, and then the pressure in the reservoir is changed to inject the medicine in the reservoir into the patient through the infusion adapter, the infusion tube and the infusion assembly. Thus, by arranging a guide portion on the side of the piercing portion away from the first direction, the guide surface of the guide portion can provide direction guidance for the movement of the male connector, thereby avoiding the deviation of the male connector during the insertion and removal of the male connector due to the plane surface of the adapter seat and the male connector, and the lack of guidance of other components during the insertion and removal of the male connector, making the insertion and removal of the male connector smoother, and at the same time, the puncture needle connected to the male connector always moves in a straight line along the first direction during the insertion and removal of the male connector, thereby avoiding the deviation of the puncture needle during the movement, ensuring that there is only a puncture hole with a fixed track at the skin of the patient to be infused with the medicine, protecting the patient's skin to be infused with the medicine and the body tissue inside the skin, etc., and improving the stability of the infusion system during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] FIG. 1 is a schematic diagram of a puncture infusion device according to one embodiment.

[0032] FIG. 2 is a schematic diagram of the male rotating joint and the adapter seat in FIG. 1 being separated.

[0033] FIG. 3 is a cross-sectional view of an adapter and a skin patch according to one embodiment.

[0034] FIG. 4 is a cross-sectional view of a male adapter, an infusion adapter, and a fluid reservoir according to one embodiment.

[0035] Description of Figure Numbers:

[0036] 100 - infusion set;

[0037] 110- adapter;

[0038] 120-male revolving joint; 121-buckle plate; 122-movable opening; 123-pressing portion; 124-second matching structure; 125-puncture hole; 126-blind hole; 127-guiding protrusion;

[0039] 130-skin patch;

[0040] 140-piercing portion; 141-guide hole;

[0041] 150-guiding portion; 151-guiding surface; 152-first matching structure;

[0042] 160-guide needle assembly; 161-guide needle; 162-guide connector; 163-guide plug; 164-guide block; 165-block hole;

[0043] 170-puncture needle;

[0044] 210-puncture infusion device; 211-liquid reservoir; 212-infusion adapter; 213-infusion tube;

[0045] OX-first direction; OY-second direction; OZ-third direction. DETAILED DESCRIPTION

[0046] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0047] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does 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 application.

[0048] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0049] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0050] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0051] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0052] The first direction, the second direction and the third direction proposed in the present application are set according to the three-dimensional coordinate system XYZ, wherein the first direction is the OX direction, the second direction is the OY direction, and the third direction is the OZ direction.

[0053] Refer to Figure 1, which shows a schematic structural diagram of a puncture infusion device 210 in one embodiment of the present application, wherein the puncture infusion device 210 includes an infusion assembly 100. The infusion assembly 100 provided in one embodiment of the present application includes: an adapter 110 and a male connector 120.

[0054] Referring to Figures 1, 2 and 4, in the infusion assembly 100 in the present application, the adapter 110 includes a connecting portion 140 and a guiding portion 150, the connecting portion 140 is located in a first direction OX of the guiding portion 150, a puncture hole 125 is provided on the connecting portion 140, and the guiding portion 150 has a guiding surface 151. Specifically, the side of the guiding portion 150 facing away from the skin is the guiding surface 151, and the guiding surface 151 is used to guide the male connector 120 to be detachably inserted into the adapter 110, a first matching structure 152 is provided on the guiding portion 150, and the male connector 120 is provided with a second matching structure 124, and the first matching structure 152 is detachably engaged with the second matching structure 124, wherein the first direction OX is the puncture direction of the puncture hole 125.

[0055] During actual use of the above-mentioned infusion assembly 100, the puncture needle 170 on the male connector 120 is first inserted into the puncture hole 125, and then the male connector 120 is abutted against the guide surface. The male connector 120 moves along the first direction OX along the guide surface to completely insert the puncture needle 170 into the puncture hole 125. At the same time, the first matching structure 152 and the second matching structure 124 are detachably engaged, so that the male connector 120 and the adapter seat 110 are relatively fixedly connected, and the puncture needle 170 is completely inserted into the puncture hole 125. Then, the male connector 120 provided with the puncture needle 170 and the adapter seat 110 are released from the engagement, the male connector 120 is pulled off, that is, the puncture needle 170 is pulled out, and then the male connector 120 provided with the infusion needle is detachably engaged with the adapter seat 110 through the first matching structure 152 and the second matching structure 124, and the infusion needle is inserted into the puncture hole 125, that is, inserted into the skin for infusion of medicine. By arranging a guide portion 150 on the side of the penetration portion 140 away from the first direction OX, the guide surface 151 of the guide portion 150 can provide directional guidance for the movement of the male connector 120, thereby avoiding the problem that the male connector 120 is easily deviated during the insertion and removal process due to the lack of guidance from other components during the insertion and removal of the male connector 120 due to the matching surface of the adapter 110 and the male connector 120 being a plane, so that the insertion and removal of the male connector 120 is smoother, and at the same time, the puncture needle 170 connected to the male connector 120 always moves in a straight line along the first direction OX during the insertion and removal of the male connector 120, thereby avoiding the puncture needle 170 from deviating during the movement, ensuring that there is only a puncture hole with a fixed trajectory on the skin of the patient to be infused with the drug, protecting the patient's skin to be infused with the drug and the body tissue inside the skin, etc., and improving the stability of the infusion component 100 during use.

[0056] Referring to FIGS. 1, 2 and 4, in one embodiment, the infusion assembly 100 further includes a skin patch 130, and the adapter 110 is disposed on the skin patch 130. Specifically, the adapter 110 is disposed on the side of the skin patch 130 away from the skin. Since the side of the guide portion 150 away from the skin is a guide surface 151, the skin patch 130 can be pasted to the skin by adhering the side away from the adapter 110 to the skin, and the guide surface 151 is disposed away from the skin. The guide surface 151 can guide the movement of the male swivel joint 120, so that The adapter 110 is relatively fixed to the skin where the drug is to be infused, and due to the existence of the guide portion 150, the male connector 120 will not contact the skin patch 130 during the plugging and unplugging process, so that the male connector 120 will not rub against the skin patch 130 or the skin during the plugging and unplugging process, thereby avoiding the puncture needle 170 and the puncture port on the skin from being torn due to the skin being driven by the male connector 120, thereby protecting the skin and the body tissue inside the skin, etc., and improving the stability of the infusion assembly 100 during use. Among them, please refer to the prior art for the specific structure of the skin patch 130, which will not be repeated here.

[0057] Referring to FIGS. 1-3, in one embodiment, the infusion assembly 100 further includes a guide needle assembly 160, which is inserted into the insertion portion 140, and one end of the guide needle assembly 160 extends out of the puncture hole 125 along the first direction OX and is located on the side of the skin patch 130 away from the adapter 110. The acute angle formed by the guide needle assembly 160 and the skin patch 130 is a first angle value, and the acute angle formed by the guide surface 151 and the skin patch 130 is a first angle value, so that the guide needle assembly 160 can be set at an acute angle with the skin when fixed relative to the skin, so as to facilitate the insertion of the puncture needle 170. After the male connector 120 is pulled out, since the acute angle between the guide surface 151 and the skin patch 130 is the first angle value, the male connector 120 with the infusion needle can be moved along the guide surface 151 during the process of reinserting the male connector 120 with the infusion needle into the adapter 110, so that the male connector 120 with the infusion needle can be fixed relative to the skin after the second matching structure 124 on the male connector 120 with the infusion needle is engaged with the first matching structure 152. At the same time, the infusion needle is located in the guide needle assembly 160, and part of the guide needle assembly 160 is located in the skin, so that liquid can be injected into the skin through the infusion needle.

[0058] Referring to Figures 1-3, in one embodiment, the guide needle assembly 160 includes a guide needle 161 and a guide connector 162, the guide connector 162 gradually shrinks along the first direction OX, and the guide connector 162 is penetrated through the penetration portion 140; one end of the guide needle 161 is connected to the guide connector 162, and the other end extends out of the puncture hole 125 and is located on the side of the skin patch 130 away from the adapter 110. Thereby, the guide needle assembly 160 can be set at an acute angle to the skin when it is fixed relative to the skin, so that it is convenient to pull out the male connector 120 equipped with the puncture needle 170. Since the acute angle between the guide surface 151 and the skin patch 130 is the first angle value, the male connector 120 equipped with the infusion needle can be moved along the guide surface 151 during the process of reinserting the male connector 120 equipped with the infusion needle into the adapter 110. Therefore, after the second matching structure 124 on the male connector 120 equipped with the infusion needle is engaged with the first matching structure 152, the male connector 120 equipped with the infusion needle is fixed relative to the skin, and at the same time, the infusion needle is located in the guide needle 161, and part of the guide needle 161 is located in the skin, so that liquid can be injected into the skin through the infusion needle. At the same time, since the guide connector 162 is tapered along the first direction OX, when the puncture needle 170 and the infusion needle are inserted into the guide needle assembly 160, there can be a larger hole for the puncture needle 170 and the infusion needle to be inserted. Then the guide connector 162 is tapered to be inserted into the thinner guide needle 161, making the insertion of the male connector 120 more convenient and quick.

[0059] Specifically, the first angle value is 5 to 30 degrees.

[0060] Specifically, the guide needle 161 is a soft needle with a certain degree of elasticity.

[0061] Preferably, the side wall of the end of the guide needle 161 away from the penetration portion 140 along the first direction OX is gradually reduced along the first direction OX, so that after the puncture needle 170 passes through the guide needle 161, the end of the guide needle 161 away from the penetration portion 140 along the first direction OX is tightly attached to the outer wall of the puncture needle 170, and at the same time, the outer wall of the guide needle 161 is gradually reduced along the puncture direction, i.e., the first direction OX, thereby reducing the resistance of the guide needle 161 to move with the puncture needle 170 in the tissue under the skin, and at the same time, making the wound as close to the outer wall of the guide needle 161 as possible, reducing the bleeding of the wound, and minimizing the damage to the patient's skin during the infusion process.

[0062] 1-3, in one embodiment, a puncture hole 125 and a puncture blind hole 126 are connected to each other on one side of the penetration portion 140 close to the male connector 120, a guide needle 161 is penetrated through the puncture hole 125, and a guide connector 162 is located in the puncture blind hole 126, thereby preventing the guide connector 162 from protruding from the mating surface of the adapter 110 and the male connector 120, so that the male connector 120 and the adapter 110 fit more closely, thereby reducing the size of the space occupied by the entire infusion assembly 100.

[0063] Referring to Figures 1-3, in one embodiment, the guide needle assembly 160 also includes a guide plug 163, which is located in the blind hole 126 and abuts against the hole wall of the blind hole 126, and the guide connector 162 is passed through the guide plug 163 and relatively fixed to the guide plug 163. Since the guide plug 163 abuts against the hole wall of the blind hole 126, the guide needle assembly 160 and the adapter 110 are relatively fixed, thereby preventing the guide needle assembly 160 from shaking or moving along the first direction OX during the process of passing through the adapter 110, thereby improving the stability of the infusion assembly 100 during use.

[0064] Specifically, the guiding soft plug 163 has a certain elasticity and is a guiding rubber plug.

[0065] Referring to Figures 1-3, in one embodiment, the guide needle assembly 160 also includes a guide block 164, and the side of the guide block 164 close to the guide needle 161 is abutted against the guide plug 163, and the guide block 164 is connected to the opening of the blind hole 126. The guide block 164 is provided with a block hole 165 along the first direction OX, so that the guide plug 163 is limited in the blind hole 126 through the guide block 164. At the same time, the guide block 164 is provided with a block hole 165 along the first direction OX, so that the puncture needle 170 and the infusion needle can pass through the block hole 165 to pass through the guide plug 163, the guide connector 162 and the guide needle 161.

[0066] Referring to Figures 1, 2 and 4, in one embodiment, the male connector 120 is symmetrically arranged along a plane formed by the second direction OY and the first direction OX, and the male connector 120 is symmetrically arranged along a plane formed by the third direction OZ and the first direction OX. The first direction OX, the second direction OY and the third direction OZ are perpendicular to each other, so that the operator can insert the male connector 120 into the adapter 110 by touch, without distinguishing the front and back sides of the male connector 120 before insertion, thereby improving the use efficiency of the infusion assembly 100.

[0067] Referring to FIG. 1 , FIG. 2 and FIG. 4 , in one embodiment, the guide portion 150 includes two sets of first matching structures 152 spaced apart along the second direction OY, and the male joint 120 includes two sets of second matching structures 124 spaced apart along the second direction OY, and a movable opening 122 is formed between the two sets of second matching structures 124, and the two sets of second matching structures 124 are respectively engaged with the two sets of first matching structures 152; wherein, as the size of the movable opening 122 changes, the first matching structure 152 is adapted to be connected with the second matching structure 124, or the first matching structure The connection between 152 and the second matching structure 124 can be released, and the second direction OY is perpendicular to the first direction OX, so that the first matching structure 152 and the second matching structure 124 can be clamped together along the second direction OY by changing the size of the movable opening 122 between the second matching structures 124, so that the position of the male connector 120 is fixed relative to the adapter seat 110, or the first matching structure 152 and the second matching structure 124 can be released from the second direction OY, so that the male connector 120 can be removed from the adapter seat 110.

[0068] Specifically, the number of each group of first matching structures 152 is one.

[0069] Referring to Figures 1, 2 and 4, in one embodiment, at least two buckle plates 121 are movably connected to the male rotary joint 120, and the multiple buckle plates 121 surround and form a movable opening 122. Each buckle plate 121 is provided with a pressing portion 123 and a second matching structure 124 adapted to the first matching structure 152. The pressing portion 123 is located on the outer side of the movable opening 122, and the second matching structure 124 is located on the side of the buckle plate 121 close to the movable opening 122. The pressing portion 123 can drive the connecting portion to move relative to the male rotary joint 120 to change the size of the movable opening 122, and the second matching structure 124 is limited between the two first matching structures 152, so that the pressing portion 123 drives the connecting portion to move relative to the male rotary joint 120 to change the size of the movable opening 122, thereby realizing the clamping and disengagement between the male rotary joint 120 and the adapter 110.

[0070] In one embodiment, at least two buckle plates 121 are movably connected to the male rotary joint 120, and the multiple buckle plates 121 surround and form a movable opening 122. Each buckle plate 121 is provided with a pressing portion 123 and a second matching structure 124 adapted to the first matching structure 152. The pressing portion 123 is located on the inner side of the movable opening 122, and the pressing portion 123 can drive the connecting portion to move relative to the male rotary joint 120 to change the size of the movable opening 122, and limit the first matching structure 152 between the two second matching structures 124, so that the pressing portion 123 drives the connecting portion to move relative to the male rotary joint 120 to change the size of the movable opening 122, thereby realizing the clamping and disengagement between the male rotary joint 120 and the adapter 110.

[0071] Specifically, the first matching structure 152 is a protrusion disposed on the guiding surface 151 , and the second matching structure 124 is a groove disposed on the buckle plate 121 and facing toward the movable opening 122 or away from the movable opening 122 .

[0072] Preferably, one end of the buckle plate 121 close to the adapter seat 110 is gradually tapered along the first direction OX to form a slope. Since the male connector 120 is symmetrically arranged along the plane formed by the second direction OY and the first direction OX, and the male connector 120 is symmetrically arranged along the plane formed by the third direction OZ and the first direction OX, in the process of inserting the male connector 120 into the adapter seat 110, the slopes on both sides of the third direction OZ can first contact the guide surface 151, so that the guide surface 151 can slide and cooperate with the above-mentioned slopes, so that the buckle plate 121 is smoothly located between or on both sides of the two first cooperation structures 152, so that the process of inserting the male connector 120 into the adapter seat 110 is smoother.

[0073] Specifically, the guide surface 151 is provided with a guide groove extending along the first direction OX, and the revolving joint 120 is provided with convex strips on both sides along the third direction, and the convex strips extend along the first direction OX. The convex strips are adapted to the guide groove, so that the convex strips can slide in the guide groove to guide the revolving joint 120 to move along the first direction OX.

[0074] Preferably, wave-shaped protrusions or depressions are provided on both sides of the pressing portion 123, and the specific form may be a regular depth or protrusion height, or an irregular shape, depth or protrusion height, to prevent problems such as hand slipping when holding the pressing portion 123.

[0075] Referring to Figures 1, 2 and 4, in one embodiment, at least one guide protrusion 127 is provided on one side of the male connector 120 close to the penetration portion 140, and at least one guide hole 141 is provided on one side of the penetration portion 140 close to the male connector 120 along the first direction OX. The guide protrusion 127 is adapted to the guide hole 141, so that by inserting the guide protrusion 127 into the guide hole, the male connector 120 can be stably moved along the first direction OX during the insertion process, thereby avoiding the bending of the puncture needle 170 due to the slenderness of the puncture needle 170 and the guide needle 161, so that the infusion assembly 100 is more stable during the connection process.

[0076] Preferably, the number of guide holes 141 is an even number, and the even number of guide holes 141 are respectively arranged on both sides of the guide needle 161 and are symmetrically arranged with respect to the axis of the guide needle 161. The number of guide protrusions 127 is also an even number, and the multiple guide protrusions 127 correspond one-to-one and fit with the multiple guide holes 141, so that the supporting force of the guide holes 141 on the male connector 120 is symmetrical when the guide protrusions 127 cooperate with each other.

[0077] Specifically, the number of the guide holes 141 is two, and the guide holes 141 are disposed on both sides of the guide needle 161 along the second direction OY and are symmetrically disposed with respect to the axis of the guide needle 161 .

[0078] In one embodiment, at least one of the male rotatable connectors 120 is provided with a puncture needle 170 , one end of the puncture needle 170 is connected to the male rotatable connector 120 , and the other end is used to pass through the guide needle 161 .

[0079] In one embodiment, an infusion needle is disposed on the male connector 120 , one end of the infusion needle is connected to the male connector 120 , and the other end of the infusion needle is used to pass through the guide needle 161 .

[0080] Specifically, there are multiple male connectors 120, which are divided into two types. One of the male connectors 120 is provided with a puncture needle 170, one of the male connectors 120 is provided with a puncture needle 170, at least one male connector 120 is provided with an infusion needle, and at least one male connector 120 is provided with an infusion needle.

[0081] When the above-mentioned infusion assembly 100 is actually used, firstly, the male connector 120 provided with the puncture needle 170 is connected to the adapter 110, at which time the puncture needle 170 extends out of the guide needle 161, and then the puncture needle 170 drives the guide needle 161 to pierce the skin according to the first angle value, and then the side of the skin patch 130 close to the skin is attached to the skin, and at this time, the male connector 120 provided with the puncture needle 170 and the adapter 110 are fixed to the skin. Then, the pressing part 123 is held by hand to drive the connecting part to move relative to the male connector 120 to change the size of the movable opening 122, so as to remove the male connector 120 provided with the puncture needle 170, and then the male connector 120 provided with the infusion needle is clamped with the adapter through the first matching structure 152 and the second matching structure 124, and the infusion needle is inserted into the guide needle 161 piercing the skin, and the drug is delivered into the guide needle 161. Since the angle between the guide surface 151 and the skin is the first angle value, whether removing the male connector 120 provided with the puncture needle 170 or inserting the male connector 120 provided with the infusion needle, the above process is extremely stable, thereby protecting the patient's skin where the drug is to be infused and improving the stability of the infusion component 100 during use. The specific lengths of the puncture needle 170 and the guide needle are not limited, and only need to meet the infusion requirements.

[0082] Preferably, the puncture needle 170 is relatively long and can extend out of the end of the guide needle 161 away from the puncturing portion, and the infusion needle is relatively short and is located inside the guide needle 161 .

[0083] Referring to Figures 1, 2 and 4, the present application provides a puncture infusion device 210, including a fluid reservoir 211, an infusion adapter 212, an infusion tube 213 and an infusion assembly 100; one end of the infusion adapter 212 is connected to the fluid reservoir 211, and the other end is connected to the infusion tube 213; the end of the infusion tube 213 facing away from the infusion adapter 212 is connected to the male connector 120.

[0084] In actual use of the above-mentioned puncture infusion device 210, first, the puncture needle 170 on the male adaptor 120 is inserted into the puncture hole 125, and then the male adaptor 120 is brought into contact with the guide surface, and the male adaptor 120 moves along the first direction OX along the guide surface, and the puncture needle 170 is completely inserted into the puncture hole 125, thereby puncturing the skin. At the same time, the first matching structure 152 and the second matching structure 124 are detachably engaged, so that the male adaptor 120 and the adapter 110 are relatively fixedly connected, and the puncture needle 170 is completely inserted into the puncture hole 125, and then the device is installed. The male connector 120 with the puncture needle 170 is released from the adapter 110, and the male connector 120 is pulled off, that is, the puncture needle 170 is pulled out, and then the male connector 120 with the infusion needle is detachably connected to the adapter 110 through the first matching structure 152 and the second matching structure 124, and the infusion needle is inserted into the puncture hole 125, that is, inserted into the skin for infusing the drug, and then by changing the pressure in the reservoir 211, the drug in the reservoir 211 is injected into the patient's body through the infusion adapter 212, the infusion tube 213 and the infusion assembly 100. Therefore, by arranging the guide portion 150 on the side of the piercing portion 140 away from the first direction OX, the guide surface 151 of the guide portion 150 can provide directional guidance for the movement of the male connector 120, thereby avoiding the situation that the male connector 120 is easily deviated during the insertion and removal due to the lack of guidance from other components during the insertion and removal of the male connector 120 due to the matching surfaces of the adapter 110 and the male connector 120 being flat, so that the insertion and removal of the male connector 120 is smoother, and at the same time, the puncture needle 170 connected to the male connector 120 always moves in a straight line along the first direction OX during the insertion and removal of the male connector 120, thereby avoiding the puncture needle 170 from deviating during the movement, ensuring that there is only a puncture hole with a fixed trajectory on the skin of the patient to be infused with drugs, protecting the patient's skin to be infused with drugs and the body tissue inside the skin, etc., and improving the stability of the puncture infusion device 210 during use.

[0085] The present application also provides an infusion system, which includes a puncture infusion device 210 .

[0086] The present application also provides an infusion system, which includes the above-mentioned infusion assembly 100.

[0087] During actual use of the above-mentioned infusion system, the puncture needle 170 on the male adapter 120 is first inserted into the skin through the puncture hole 125, and then the male adapter 120 with the infusion needle is inserted into the puncture hole 125. Subsequently, by changing the pressure in the reservoir 211, the medicine in the reservoir 211 is introduced into the patient's body through the infusion adapter 212, the infusion tube 213 and the infusion assembly 100. Therefore, by arranging the guide portion 150 on the side of the piercing portion 140 away from the first direction OX, the guide surface 151 of the guide portion 150 can provide directional guidance for the movement of the male connector 120, thereby avoiding the problem that the male connector 120 is easily deviated during the insertion and removal process due to the lack of guidance from other components due to the matching surfaces of the adapter 110 and the male connector 120 being flat, so that the male connector 120 is plugged in and out more smoothly, and at the same time, the puncture needle 170 connected to the male connector 120 always moves in a straight line along the first direction OX during the insertion and removal of the male connector 120, thereby avoiding the puncture needle 170 from deviating during the movement, ensuring that there is only a puncture hole with a fixed trajectory on the skin of the patient to be infused with the drug, protecting the patient's skin to be infused with the drug and the body tissue inside the skin, etc., and improving the stability of the infusion system during use.

[0088] Specifically, the shape of the projection of the adapter 110 on the skin patch 130 can be circular, rectangular, trapezoidal, polygonal, elliptical, etc., and the specific shape is not limited here.

[0089] Specifically, the puncture infusion set 210 may also include a pump assembly, which may be a pipeline pump that supports automatic infusion of insulin into the patient's body. The puncture infusion set is also suitable for pharmaceutical agents, such as analgesics, chemotherapy and other cancer-related drugs, antibiotics, hormones, GLP-1, glucagon, and various other drugs, including macromolecules and proteins. When the infusion system is used for insulin infusion, the infusion system also includes a glucose sensor, which is used to monitor blood sugar changes, and the puncture infusion set 210 adjusts the infusion plan according to blood sugar changes. The specific application scenarios, usage conditions, infusion drugs, and specific forms of the pump assembly of the puncture infusion set 210 are not limited here.

[0090] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0091] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. An infusion assembly, characterized in that: include: Adapters and male connectors; The adapter seat comprises a piercing portion and a guiding portion connected to each other, wherein the piercing portion is located in a first direction of the guiding portion; and a puncture hole is provided on the piercing portion; The guide portion has a guide surface, and the guide surface is used to guide the male rotatable joint to be detachably inserted into the adapter seat; the guide portion is provided with a first matching structure, and the male rotatable joint is provided with a second matching structure, and the first matching structure and the second matching structure are detachably engaged, wherein the first direction is the puncture direction of the puncture hole.

2. The infusion set according to claim 1, characterized in that The infusion assembly also includes a skin patch, and the adapter is arranged on a side of the skin patch facing away from the skin.

3. The infusion set according to claim 2, characterized in that The infusion assembly further comprises a guide needle assembly, the guide needle assembly is inserted into the insertion portion, one end of the guide needle assembly along the first direction extends out of the puncture hole and is located at a side of the skin patch away from the adapter; The acute angle formed by the guide needle assembly and the skin patch is a first angle value, and the acute angle formed by the guide surface and the skin patch is a first angle value.

4. The infusion set according to claim 3, characterized in that The guide needle assembly includes a guide needle and a guide connector, the guide connector gradually shrinks along the first direction, and the guide connector is penetrated through the penetration portion; one end of the guide needle is connected to the guide connector, and the other end extends out of the puncture hole and is located on the side of the skin patch away from the adapter.

5. The infusion set according to claim 4, characterized in that A puncture hole and a puncture blind hole connected to each other are provided on one side of the puncture portion close to the male rotary joint. The guide needle is inserted into the puncture hole, and the guide joint is located in the puncture blind hole.

6. The infusion set according to claim 5, characterized in that The guide needle assembly also includes a guide plug, which is located in the blind hole and abuts against the hole wall of the blind hole, and the guide joint is penetrated through the guide plug and fixed relative to the guide plug.

7. The infusion set according to claim 6, characterized in that The guide needle assembly also includes a guide block, a side of the guide block close to the guide needle abuts against the guide plug, the guide block is connected to the opening of the blind hole, and the guide block is provided with a block hole along the first direction.

8. The infusion set according to claim 7, characterized in that The revolving joints are symmetrically arranged along a plane formed by the second direction and the first direction, and the revolving joints are symmetrically arranged along a plane formed by the third direction and the first direction; The first direction, the second direction and the third direction are perpendicular to each other.

9. The infusion set according to claim 1, characterized in that The guide portion includes two groups of first matching structures spaced apart along a second direction; The male rotatable joint comprises two groups of second matching structures spaced apart along the second direction, and a movable opening is formed between the two groups of the second matching structures; Two groups of the second matching structures are respectively engaged with two groups of the first matching structures; wherein, as the size of the movable opening changes, the first matching structure and the second matching structure are adaptively connected, or the first matching structure and the second matching structure can be disconnected, and the second direction is perpendicular to the first direction.

10. The infusion set according to claim 9, characterized in that The male revolving joint includes at least two buckle plates, which enclose and form a movable opening. Each of the buckle plates is provided with a pressing portion and a second matching structure adapted to the first matching structure. The pressing portion is located on the outside of the movable opening, and the second matching structure is located on the side of the buckle plate close to the movable opening. The pressing portion can drive the connecting portion to move relative to the male revolving joint to change the size of the movable opening.

11. The infusion set according to claim 1, characterized in that At least one guide protrusion is provided on one side of the male revolving joint close to the penetration portion, and at least one guide hole is provided on one side of the penetration portion close to the male revolving joint along the first direction, and the guide protrusion is adapted to the guide hole.

12. The infusion set according to claim 5, characterized in that The male rotatable joint is provided with a puncture needle, one end of which is connected to the male rotatable joint, and the other end of which is used to pass through the guide needle.

13. The infusion set according to claim 5, characterized in that An infusion needle is arranged on the male rotatable joint, one end of the infusion needle is connected to the male rotatable joint, and the other end is used to be inserted into the guide needle.

14. A puncture infusion device, characterized in that: Comprising a liquid reservoir, an infusion adapter, an infusion tube, and an infusion assembly according to any one of claims 1 to 13; One end of the infusion adapter is connected to the liquid reservoir, and the other end is connected to the infusion tube; One end of the infusion tube away from the infusion adapter is connected to the male adapter.

15. An infusion system, characterized in that: The infusion system comprises the puncture infusion device according to claim 14 or the infusion assembly according to any one of claims 1 to 13.

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