CN213158381U - Disposable insulin pump is with infusion subassembly separator and infusion subassembly - Google Patents

Abstract

The utility model discloses a disposable insulin pump is with infusion subassembly separator and infusion subassembly, this infusion subassembly is used to have this disposable insulin pump is with infusion subassembly separator, the utility model provides a disposable insulin pump is with infusion subassembly separator and infusion subassembly is through setting up public seat of protective sheath and female seat of protective sheath, when detaching public seat of separator and female seat of separator, can be on public seat of separator lock joint protective sheath female seat, the public seat of lock joint protective sheath on female seat of separator, realize the protection to check valve structure and connecting needle tubing, avoid check valve structure and connecting needle tubing direct exposure in the air, can prevent effectively that check valve structure and connecting needle tubing from receiving the pollution, sanitary safety degree is high.

Description

Disposable insulin pump is with infusion subassembly separator and infusion subassembly

Technical Field

The utility model relates to a medical instrument, in particular to disposable insulin pump is with infusion subassembly separator and applied this disposable insulin pump is with infusion subassembly of infusion subassembly separator is with infusion subassembly.

Background

Diabetes is a metabolic disease characterized by elevated blood sugar due to defective insulin secretion or impaired insulin action. The insulin pump is a medical device for automatically injecting insulin to treat diabetes, belongs to a mechanical and electrical integration product with higher integration level, and has the advantages of safety, stability, reliable performance, low failure rate, small size, convenience in carrying, long service life, good waterproof performance, low noise, low energy consumption and the like in the aspect of hardware, intelligence, automation, networking and the like in the aspect of software control, and the insulin pump has the advantages of high cost performance and good matching service in the aspect of integral requirement. For domestic enterprises, the insulin pump field needs higher technical capability and comprehensive strength.

A disposable infusion set for an insulin pump is a device for storing insulin and infusing insulin into the human body through the insulin pump. The disposable insulin pump infusion component belongs to a high polymer material, the processing of the disposable insulin pump infusion component can be achieved through plastic processing methods, the processing methods have abundant experience, for example, a catheter can be completed through a plastic extrusion process, and other fittings and joints can achieve expected results through an injection molding method. When the device is used, the injection storage device is loaded with insulin liquid medicine and then is loaded into a medicine storage groove of an insulin pump, the joint end of an infusion needle (with a conduit) is connected with an output end interface of the injection storage device and is screwed, the insulin pump is started to completely discharge air bubbles in a pipeline, the infusion needle is inserted into abdominal subcutaneous tissues of a patient, and insulin infusion is realized under the control of an insulin pump control program.

When a patient needs to take the insulin pump off the body, in order to avoid the complication of repeatedly inserting the needle or carrying the whole insulin pump and the infusion assembly, the existing infusion assembly for the disposable insulin pump adopts the structural design of separating the infusion needle, and separates the catheter from the infusion needle to keep the infusion needle in the body of the patient. The traditional separation structure on the market is inconvenient to operate, influences the use, easily causes the infusion needle to become flexible and leads to the weeping to there is the risk of pollution.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. To this end, in one aspect, the present invention provides a disposable insulin pump infusion set separator that is not contaminated during separation.

According to the utility model discloses disposable insulin pump is with infusion subassembly separator, including public seat of separator, female seat of separator, public seat of protective sheath and the female seat of protective sheath, the public seat of separator is provided with connecting needle tube, the female seat of separator is provided with the confession connecting needle tube male check valve structure, public seat of separator with between the female seat of separator public seat of protective sheath with all be provided with the lock joint structure of mutually supporting between the female seat of protective sheath, through the lock joint structural action, the public seat of protective sheath can the lock joint on the female seat of separator the female seat of protective sheath can the lock joint be in on the public seat of separator and correspond and shield the check valve structure with connecting needle tube.

According to the utility model discloses an embodiment has following technological effect at least:

the utility model provides a disposable insulin pump is with infusion subassembly separator, through setting up public seat of protective sheath and the female seat of protective sheath, when detaching public seat of separator and the female seat of separator, can be on public seat of separator lock joint protective sheath female seat, the public seat of lock joint protective sheath on the female seat of separator, realize the protection to check valve structure and connecting needle tube, avoid check valve structure and connecting needle tube direct exposure in the air, can prevent effectively that check valve structure and connecting needle tube from receiving the pollution, sanitary safety degree is high.

According to some embodiments of the utility model, the public seat of separator with the female seat of separator is flat structure, and passes through the lock joint structure splices in the tip that thickness corresponds.

According to some embodiments of the utility model, the public seat of separator and/or the concatenation end of the female seat of separator outwards extend be provided with the female seat of separator and/or the mesa of accepting of the public seat adaptation of separator, in order to be used for the laminating the female seat of separator and/or the side of the public seat of separator.

According to some embodiments of the utility model, the one end of the female seat of separator outwards extends and is provided with the boss, the check valve structure set up in the boss, the female seat of separator in be provided with the concave position of lock on the step that the both sides of boss formed, and the female seat of separator in follow on the step the outside extension of extending direction of boss forms accept the mesa, the public seat of separator in connect the needle tubing's both sides be provided with the concave position complex lock card foot of lock, the lock card foot can atress inwards merge and with the concave position separation of lock, through the concave position of lock with the lock card foot forms the lock joint structure.

According to some embodiments of the utility model, the intermediate position indent of the terminal surface of boss is provided with first installation cavity, the boss in the both sides indent of first installation cavity is provided with the second installation cavity, the check valve structural mounting in the first installation cavity, the public seat of separator be provided with the reference column of second installation cavity adaptation.

According to some embodiments of the utility model, the check valve structure include sealed silica gel and lock joint in first installation intracavity and will sealed silica gel compresses tightly's fixing base, the fixing base corresponds sealed silica gel has seted up the confession connect the needle tubing male position mouth that lets.

According to some embodiments of the utility model, the female seat of separator in sealing silica gel deviates from let the one end of a mouthful be provided with first pipeline, the end opening setting of first pipeline, the public seat of separator is provided with the second pipeline, connect the needle tubing intercommunication the second pipeline, the end opening setting of second pipeline.

According to some embodiments of the utility model, the terminal of lock card foot extends to the outside and is formed with the buckling parts, the concave position of lock corresponds the buckling parts is provided with the wedge.

According to some embodiments of the utility model, two the end that deviates from of lock card foot is provided with anti-skidding line.

On the other hand, the utility model provides a disposable insulin pump infusion component without pollution during separation, which mainly uses the disposable insulin pump infusion component separator with the structure, and comprises a separator male seat, a separator female seat, a protective sleeve male seat, a protective sleeve female seat, a first infusion tube and a second infusion tube, wherein the separator male seat is provided with a connecting needle tube, the separator female seat is provided with a one-way valve structure for inserting the connecting needle tube, one end of the first infusion tube is connected with the separator male seat and is communicated with the connecting needle tube, one end of the second infusion tube is connected with the separator female seat and is closed through the one-way valve structure, the other end of the second infusion tube is provided with an infusion needle, and lock joint structures which are matched with each other are arranged between the separator male seat and the separator female seat and between the protective sleeve male seat and the protective sleeve female seat, through the effect of the fastening structure, the male protective sleeve seat can be fastened on the female separator seat, the female protective sleeve seat can be fastened on the male separator seat and correspondingly shielded the check valve structure and the connecting needle tube.

According to the utility model discloses an embodiment has following technological effect at least:

the utility model provides a disposable insulin pump is with infusion subassembly, can realize the insulin infusion through the insulin pump of first transfer line connection, keep somewhere the infusion needle in the human body in needs, can realize the separation of infusion needle and insulin pump through detaching public seat of separator and the female seat of separator, because be connected through the second transfer line between female seat of separator and the infusion needle, this type of transfer line is the hose usually, consequently detach or assemble the public seat of separator once more can not touch the infusion needle, be favorable to ensureing that the installation of infusion needle is firm. And, after detaching public seat of separator and the female seat of separator, can be on the public seat of separator lock joint protective sheath female seat, lock joint protective sheath public seat on the female seat of separator realizes the protection to check valve structure and connecting needle tubing, avoids check valve structure and connecting needle tubing direct exposure in the air, can prevent effectively that check valve structure and connecting needle tubing from receiving the pollution, and sanitary safety degree is high.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is an exploded view of a male separator seat and a female separator seat of the present invention;

FIG. 2 is a cross-sectional view of the structure shown in FIG. 1;

FIG. 3 is a schematic view of the assembly of the male and female separator seats of the present invention;

FIG. 4 is an assembled cross-sectional view of the male and female separator seats of the present invention;

FIG. 5 is a schematic illustration of the separator male and female seats partially disassembled;

figure 6 is a schematic diagram of one construction of a male and female protective casing.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" 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 in specific cases to those skilled in the art.

Referring to fig. 1-6, the utility model discloses a disposable insulin pump is with infusion subassembly separator, including public seat 200 of separator, female seat 100 of separator, public seat 400 of protective sheath and female seat 300 of protective sheath, public seat 200 of separator is provided with connecting needle pipe 201, female seat 100 of separator is provided with and supplies to connect needle pipe 201 male check valve structure, between public seat 200 of separator and the female seat 100 of separator, all be provided with the lock joint structure of mutually supporting between public seat 400 of protective sheath and the female seat 300 of protective sheath, through the effect of lock joint structure, public seat 400 of protective sheath can the lock joint on female seat 100 of separator, female seat 300 of protective sheath can the lock joint on public seat 200 of separator and the corresponding check valve structure and the connecting needle pipe 201 of shielding.

Adopt the disposable insulin pump of above-mentioned structure setting to use infusion subassembly separator, through setting up public seat 400 of protective sheath and female seat 300 of protective sheath, when detaching public seat 200 of separator and female seat 100 of separator, can be on public seat 200 of separator lock joint protective sheath female seat 300, lock joint protective sheath public seat 400 on female seat 100 of separator, realize the protection to check valve structure and connecting needle pipe 201, avoid check valve structure and connecting needle pipe 201 direct exposure in the air, can prevent effectively that check valve structure and connecting needle pipe 201 from receiving the pollution, sanitary safety degree is high.

In addition, in the actual production process, the fastening structure between the male separator seat 200 and the female separator seat 100 and the fastening structure between the male protective sleeve seat 400 and the female protective sleeve seat 300 can be set to be the same structure, so that the mold opening cost is reduced. Meanwhile, when the same structure is adopted, the appearance structures of the separator male socket 200 and the protective sleeve male socket 400 can be basically kept consistent, the appearance structures of the separator female socket 100 and the protective sleeve female socket 300 can be basically kept consistent, the identification degree is high, and the practical use is facilitated.

Considering that the infusion tube diameter of the infusion component for the insulin pump is small, if the separator male seat 200 and the separator female seat 100 are arranged to be of a cylindrical structure matched with the infusion tube, the operation of a user is inconvenient. In view of the above, referring to fig. 1 to 5, in some embodiments of the present invention, the male separator base 200 and the female separator base 100 are both flat plate-shaped structures and are spliced at the end portions corresponding to the thickness by a fastening structure. Thus, when the user operates, the user can hold the two surfaces with the largest areas of the separator male seat 200 and the separator female seat 100 to detach and splice, the operation is convenient, and the two surfaces can be assembled in place.

Referring to fig. 1 and 2, in order to improve the connection strength and connection stability of the male separator seat 200 and the female separator seat 100, in some embodiments of the present invention, one end (i.e., the splicing end) of the female separator seat 100 close to the male separator seat 200 extends outward to form a receiving table 106 adapted to the male separator seat 200, and the receiving table 106 is used for fitting the side of the male separator seat 200. Because insulin pump is with infusion subassembly's transfer line pipe diameter is less, consequently the size of the public seat 200 of separator and the female seat 100 of separator also can not be too big in actual setting, accepts mesa 106 through the setting, can effectively improve the joint strength between public seat 200 of separator and the female seat 100 of separator for the lock structure can only be used for overcoming the pulling force, and overcomes moment of flexure or horizontal atress through accepting mesa 106. Moreover, the arrangement of the bearing table board 106 can also be used as prepositioning in the splicing process of the separator male seat 200 and the separator female seat 100, so that the splicing efficiency is improved, and a patient can conveniently detach and splice the separator male seat 200 and the separator female seat 100, and the use is convenient. Of course, the receiving platform 106 may be disposed on the male separator base 200 or on both the male separator base 200 and the female separator base 100 during the actual production process.

Referring to fig. 1 and 2, in some embodiments of the utility model, the one end of the female seat 100 of separator outwards extends and is provided with boss 103, the check valve structure sets up in boss 103, the female seat 100 of separator is provided with the concave position 102 of lock on the step 101 that the both sides of boss 103 formed, and the female seat 100 of separator outwards extends the formation along the extending direction of boss 103 on step 101 and accepts mesa 106, the extending length who accepts mesa 106 is greater than the extending length of boss 103, thereby the improvement is accepted mesa 106 and is born, overcome moment of flexure or horizontal atress's ability, and promote simultaneously and accept the prepositioning effect of mesa 106. The male separator base 200 is provided with buckling clamping pins 203 matched with the buckling concave positions 102 on two sides of the connecting needle tube 201, the buckling clamping pins 203 can be stressed to be inwards folded and separated from the buckling concave positions 102, and therefore buckling structures on the male separator base 200 and the female separator base 100 are formed through the buckling concave positions 102 and the buckling clamping pins 203. By adopting the arrangement of the boss 103 and the buckling clamping leg 203, the female separator base 100 and the male separator base 200 form an assembly form which is matched with the inside of the other side, and the connection strength is higher.

Referring to fig. 1 and 2, in some embodiments of the present invention, the intermediate position indent of the terminal surface of boss 103 is provided with first installation cavity 105, boss 103 is provided with second installation cavity 104 in the both sides indent of first installation cavity 105, the check valve structural mounting is in first installation cavity 105, public seat 200 of separator is provided with reference column 202 with second installation cavity 104 adaptation. The end of the positioning column 202 protrudes relative to the end of the connecting needle tube 201, so as to achieve pre-positioning between the connecting needle tube 201 and the one-way valve structure, ensure that the connecting needle tube 201 is accurately inserted into the one-way valve structure, avoid the connecting needle tube 201 from touching the outer surface of the separator female seat 100, and ensure cleanness and sanitation. Meanwhile, the positioning column 202 can be matched with the bearing table board 106, so that the connection strength and the connection firmness of the positioning column and the bearing table board 106 are improved.

In some embodiments of the utility model, the check valve structure includes sealing silica gel 108 and the fixing base 107 that the lock joint was in first installation cavity 105 and compressed tightly sealing silica gel 108, and fixing base 107 corresponds sealing silica gel 108 and has offered and supply to connect the needle tubing 201 male mouth of stepping down 109. A side wall of the first mounting cavity 105 is provided with a first forming opening for conducting the outside, an elastic buckling pin is arranged on the fixing seat 107 corresponding to the first forming opening, and the fixing seat 107 is clamped with the first forming opening through the elastic buckling pin to realize mounting when being inserted into the first mounting cavity 105. In actual production, the separator male seat 200 and the separator female seat 100 are usually injection-molded products, and the first mounting cavity 105 is a concave cavity, so that the first mounting cavity 105 is formed while a structure matched with the elastic buckling pin is difficult to be formed on the inner wall of the first mounting cavity 105 at the same time, and the first forming opening with the structure is adopted, so that a core for forming the first mounting cavity 105 and a core for forming the first forming opening can be separately arranged, product demoulding is not hindered, injection molding is realized while the separator female seat 100 is injection-molded, the size precision is convenient to control, and the matching with the elastic buckling pin is realized.

Referring to fig. 4 and 5, in some embodiments of the present invention, the female separator seat 100 is provided with a first pipeline 115 at one end of the sealing silica gel 108 deviating from the let position port 109, the end opening of the first pipeline 115 is provided, and the male separator seat 200 is provided with a second pipeline, the connecting needle tube 201 is communicated with the second pipeline, and the end opening of the second pipeline is provided. When the male separator seat 200 and the female separator seat 100 are fastened together, the connecting needle tube 201 penetrates through the relief opening 109 to pierce the sealing silica gel 108 to communicate with the first pipeline 115, so that the first pipeline 115 and the second pipeline are communicated. When the male separator seat 200 and the female separator seat 100 are detached, the connecting needle tube 201 exits the abdicating port 109, and the sealing silica gel 108 closes the first pipeline 115 under the action of the material performance thereof, so that the function of the one-way valve is realized.

In this embodiment, the male and female protection sleeves 400, 300 may have substantially the same structure as the male and female separator seats 200, 100, except that the first and second pipelines 115, 201, etc. do not need to be opened, and a one-way valve structure and a connecting needle tube 201 are not needed to be provided for realizing the infusion. It is obvious that the female sheath holder 300 needs to be provided with a concave structure for receiving the connecting needle tube 201.

Referring to fig. 1 to 5, in some embodiments of the present invention, the end of the fastening clip 203 extends outward to form a fastening portion 204, and the fastening recess 102 is provided with a wedge surface 111 corresponding to the fastening portion 204. When the male separator holder 200 and the female separator holder 100 are fastened, the fastening pins 203 can be pressed inward by the wedge-shaped surface 111 and folded inward until the fastening portions 204 are completely fastened into the fastening recesses 102. Referring to fig. 2, the catching recess 102 includes a catching cavity 113 and a guide cavity 112, the guide cavity 112 is formed recessed inward along the step 101 surfaces on both sides of the boss 103, and a wedge surface 111 is formed by a side wall of the guide cavity 112. The snap-fit cavity 113 is located at the end of the guide cavity 112, and the lateral width of the snap-fit cavity 113 is greater than the width of the end of the guide cavity 112, thereby forming a protruding structure cooperating with the snap-fit portion 204. And the buckling cavity 113 is provided with a second forming opening 110 on one end surface of the separator female socket 100, and the second forming opening 110 can facilitate the injection molding of the buckling cavity 113.

In some embodiments of the present invention, the two fastening clips 203 are provided with anti-slip lines 205 at the end away from the clip. The anti-slip pattern 205 is convenient for the user to operate.

The utility model also provides a disposable insulin pump infusion component which is not polluted during separation, which mainly uses the disposable insulin pump infusion component separator recorded in any one of the embodiments, and concretely comprises a separator male seat 200, a separator female seat 100, a protective sleeve male seat 400, a protective sleeve female seat 300, a first infusion tube 206 and a second infusion tube 114, wherein the separator male seat 200 is provided with a connecting needle tube 201, the separator female seat 100 is provided with a one-way valve structure for inserting the connecting needle tube 201, one end of the first infusion tube 206 is connected with the separator male seat 200 and communicated with the connecting needle tube 201, one end of the second infusion tube 114 is connected with the separator female seat 100 and closed through the one-way valve structure, the other end of the second infusion tube 114 is provided with an infusion needle, a lock joint structure which is mutually matched is arranged between the separator male seat 200 and the separator female seat 100, and a protective sleeve male seat 400 and a protective sleeve 300, through the effect of the fastening structure, the male protective sleeve seat 400 can be fastened on the female separator seat 100, and the female protective sleeve seat 300 can be fastened on the male separator seat 200 and correspondingly shields the check valve structure and the connecting needle tube 201.

The arrangement of the infusion needle belongs to the prior art, and not described herein, the end of the first infusion tube 206 may be provided with a connector for connecting an insulin pump or an injection reservoir. The first infusion tube 206 and the second infusion tube 114 can be connected and fixed by means of adhesion, fusion, and the like. The connection and installation of the first infusion tube 206 and the second infusion tube 114 can be realized by combining the arrangement of the first tube 115 and the second tube in the previous embodiment.

Adopt the disposable insulin infusion subassembly for pump that above-mentioned structure set up, can realize the insulin infusion through first transfer line 206 connection insulin pump, when needs keep the infusion needle in the human body, can realize the separation of infusion needle and insulin pump through detaching public seat 200 of separator and the female seat 100 of separator, because be connected through second transfer line 114 between female seat 100 of separator and the infusion needle, this type of transfer line is the hose usually, consequently can not touch the infusion needle when detaching or assembling public seat 200 of separator once more, be favorable to ensureing that the installation of infusion needle is firm. And, after detaching public seat 200 of separator and the female seat 100 of separator, can be on public seat 200 of separator lock joint protective sheath female seat 300, lock joint protective sheath public seat 400 on female seat 100 of separator realizes the protection to check valve structure and connecting needle pipe 201, avoids check valve structure and connecting needle pipe 201 direct exposure in the air, can prevent effectively that check valve structure and connecting needle pipe 201 from receiving the pollution, and sanitary safety degree is high.

In the utility model, the related components are made of biocompatible materials and meet the requirement of drug compatibility of insulin. The first infusion tube 206 and the second infusion tube 114 can be made of LDPE (150E) materials as inner layers and TPU (58277) materials as outer layers, and the size of the first infusion tube 206 and the second infusion tube 114 can be conventional (inner diameter is 0.4mm and outer diameter is 1.5mm), so that superior bending resistance of the first infusion tube 206 and the second infusion tube 114 can be effectively ensured, and the pipelines can be kept smooth in a bending state.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. The utility model provides a disposable insulin pump is with infusion subassembly separator which characterized in that: including public seat of separator, the female seat of separator, the public seat of protective sheath and the female seat of protective sheath, the public seat of separator is provided with connecting needle tube, the female seat of separator is provided with the confession connecting needle tube male check valve structure, the public seat of separator with between the female seat of separator the public seat of protective sheath with all be provided with the lock joint structure of mutually supporting between the female seat of protective sheath, through the lock joint structure effect, the public seat of protective sheath can the lock joint on the female seat of separator the female seat of protective sheath can the lock joint be in on the public seat of separator and the correspondence shield the check valve structure with connecting needle tube.

2. The disposable insulin pump infusion set separator as recited in claim 1, wherein: the separator male seat and the separator female seat are both of flat-plate structures and are spliced at the end parts corresponding to the thickness through the buckling structures.

3. The disposable insulin pump infusion set separator as recited in claim 2, wherein: the public seat of separator and/or the concatenation end of the female seat of separator outwards extends be provided with the female seat of separator and/or the accept mesa of the public seat adaptation of separator for be used for the laminating the female seat of separator and/or the side of the public seat of separator.

4. The disposable insulin pump infusion set separator as recited in claim 3, wherein: the one end of the female seat of separator outwards extends and is provided with the boss, the check valve structure set up in the boss, the female seat of separator in be provided with the concave position of lock on the step that the both sides of boss formed, and the female seat of separator in follow on the step the outside extension of the extending direction of boss forms accept the mesa, the public seat of separator in connect needle tube's both sides be provided with the concave position complex lock card foot of lock, the lock card foot can atress inwards contract and with the concave position separation of lock, through the concave position of lock with the lock card foot forms the lock joint structure.

5. The disposable insulin pump infusion set separator as recited in claim 4, wherein: the intermediate position indent of the terminal surface of boss is provided with first installation cavity, the boss in the both sides indent of first installation cavity is provided with the second installation cavity, the check valve structural mounting in the first installation cavity, the public seat of separator be provided with the reference column of second installation cavity adaptation.

6. The disposable insulin pump infusion set separator as recited in claim 5, wherein: the check valve structure includes sealed silica gel and lock joint in first installation intracavity and will sealed silica gel compresses tightly the fixing base, the fixing base corresponds sealed silica gel has seted up the confession connect the needle tubing male position mouth that lets.

7. The disposable insulin pump infusion set separator as recited in claim 6, wherein: the female seat of separator in sealing silica gel deviates from let the one end of position mouth be provided with first pipeline, the end opening setting of first pipeline, the public seat of separator is provided with the second pipeline, connecting needle tube intercommunication the second pipeline, the end opening setting of second pipeline.

8. The disposable insulin pump infusion set separator as recited in claim 4, wherein: the terminal of lock card foot extends to the outside and is formed with the buckling parts, the concave position of lock corresponds the buckling parts is provided with the wedge.

9. The disposable insulin pump infusion set separator as recited in claim 4, wherein: two the end that deviates from of lock card foot is provided with anti-skidding line.

10. The utility model provides a disposable insulin pump is with infusion subassembly which characterized in that: comprises a separator male seat, a separator female seat, a protective sleeve male seat, a protective sleeve female seat, a first infusion tube and a second infusion tube, the male separator seat is provided with a connecting needle tube, the female separator seat is provided with a one-way valve structure for the connecting needle tube to insert, one end of the first infusion tube is connected with the male separator seat and communicated with the connecting needle tube, one end of the second infusion tube is connected with the female separator seat and closed through the one-way valve structure, the other end of the second infusion tube is provided with an infusion needle, the male separator seat and the female separator seat, and the male protective sleeve seat and the female protective sleeve seat are provided with mutually matched fastening structures, through the effect of the fastening structure, the male protective sleeve seat can be fastened on the female separator seat, the female protective sleeve seat can be fastened on the male separator seat and correspondingly shielded the check valve structure and the connecting needle tube.

Images