CN110368550B - Shear type transfusion harbor structure and assembling method - Google Patents
Shear type transfusion harbor structure and assembling method Download PDFInfo
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- CN110368550B CN110368550B CN201910604551.1A CN201910604551A CN110368550B CN 110368550 B CN110368550 B CN 110368550B CN 201910604551 A CN201910604551 A CN 201910604551A CN 110368550 B CN110368550 B CN 110368550B
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- 238000000034 method Methods 0.000 title claims abstract description 10
- 230000006835 compression Effects 0.000 claims abstract description 9
- 238000007906 compression Methods 0.000 claims abstract description 9
- 238000003466 welding Methods 0.000 claims description 20
- 239000000463 material Substances 0.000 claims description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- 239000000741 silica gel Substances 0.000 claims description 6
- 229910002027 silica gel Inorganic materials 0.000 claims description 6
- 210000001503 joint Anatomy 0.000 claims description 5
- 238000003860 storage Methods 0.000 claims description 5
- 238000001746 injection moulding Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 238000002347 injection Methods 0.000 claims 1
- 239000007924 injection Substances 0.000 claims 1
- 238000007789 sealing Methods 0.000 abstract description 8
- 238000001802 infusion Methods 0.000 description 10
- 238000007920 subcutaneous administration Methods 0.000 description 8
- 238000009434 installation Methods 0.000 description 4
- 238000009958 sewing Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000002513 implantation Methods 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 206010072170 Skin wound Diseases 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 239000007943 implant Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 229920002492 poly(sulfone) Polymers 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- 239000012080 ambient air Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/158—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/158—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
- A61M2005/1586—Holding accessories for holding infusion needles on the body
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2207/00—Methods of manufacture, assembly or production
Landscapes
- Health & Medical Sciences (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention relates to a shear type transfusion port structure and an assembly method, wherein the shear type transfusion port structure comprises an upper cover, a lower cover, a diaphragm and a connector, the upper cover comprises an upper cover main body, a first inner cavity and a second inner cavity which are mutually communicated are arranged in the upper cover main body from top to bottom, an annular compression ring connected with the top of the upper cover main body is arranged at the top of the first inner cavity, an upper cover annular convex edge which extends downwards is arranged on the inner wall of the first inner cavity, an annular groove is formed between the upper cover annular convex edge and the inner wall of the upper cover main body, and a mounting groove is arranged at the bottom of the upper cover main body; the lower cover is including setting up the lower cover main part at the second inner chamber, and the upper end periphery of lower cover main part is equipped with the lower cover annular chimb of being connected with ring channel interference fit, and the lower extreme of lower cover main part is equipped with the mount pad of being connected with the mounting groove cooperation, and the diaphragm setting is in first inner chamber and respectively with annular clamping ring, lower cover main part looks butt, the connector setting is on the lower cover main part and extend outside the upper cover. The invention has high structural strength, good sealing performance, easy operation and difficult reverse rotation when being implanted under the skin.
Description
Technical Field
The invention relates to the technical field of medical equipment, in particular to a shear type transfusion harbor structure and an assembly method.
Background
For patients who have long needed to puncture a vein for infusion, hospitals implant ports of infusion into the patient's body. The existing infusion port has an unstable connecting structure between the upper cover and the lower cover, and an obvious gap is formed after the upper cover and the lower cover are welded, so that the overall structure quality of the infusion port is reduced, and the sealing performance is poor. In addition, existing ports are prone to overturn after subcutaneous implantation, creating a secondary surgical risk.
Disclosure of Invention
The invention aims to solve the technical problem of providing a shear type transfusion port structure and an assembly method, wherein the shear type transfusion port structure has high structural strength, good sealing performance, easy operation and difficult inversion when being implanted under the skin.
The invention relates to a shear type transfusion harbor structure, which comprises an upper cover, a lower cover, a diaphragm and a connector, and is characterized in that: the upper cover comprises an upper cover main body, a first inner cavity and a second inner cavity which are mutually communicated are arranged in the upper cover main body from top to bottom, an annular compression ring connected with the top of the upper cover main body is arranged at the top of the first inner cavity, the diaphragm is arranged in the first inner cavity and is abutted to the annular compression ring, an upper cover annular convex edge which extends downwards is arranged on the inner wall of the first inner cavity, an annular groove is formed between the upper cover annular convex edge and the inner wall of the upper cover main body, the annular groove is communicated with the upper part of the second inner cavity, and a mounting groove is formed in the bottom of the upper cover main body and is communicated with the lower part of the second inner cavity; the lower cover comprises a lower cover main body arranged in the second inner cavity, the upper end of the lower cover main body is abutted against the diaphragm, a liquid storage cavity is arranged in the lower cover main body, a lower cover annular convex edge is arranged on the periphery of the upper end of the lower cover main body, the lower cover annular convex edge is in interference fit connection with the annular groove, a mounting seat is arranged at the lower end of the lower cover main body, and the mounting seat is in fit connection with the mounting groove; one end of the connector is arranged on the main body of the lower cover and extends out of the upper cover.
Preferably, the upper cover main body has a sewing portion on an upper portion thereof and a grip portion on a lower portion thereof, and the sewing portion has a curved structure.
In any of the above aspects, the suture portion is preferably provided with a plurality of suture holes.
In any of the above aspects, the separator is preferably a silica gel separator.
In any of the above aspects, preferably, the other end of the connector is connected with a conduit and inserted into a conduit lock, and the conduit lock, the conduit and the connector are connected in an interference fit.
In any of the above aspects, preferably, the catheter lock includes an inner lock tube and an outer lock tube, a first cavity, a second cavity and a third cavity which are sequentially communicated are disposed in the inner lock tube along an axial direction of the inner lock tube, a fourth cavity and a fifth cavity which are sequentially communicated are disposed in the outer lock tube along an axial direction of the outer lock tube, one end of the inner lock tube is inserted and fixed in the fourth cavity, and the fifth cavity is communicated with the third cavity.
In any of the above-mentioned aspects, preferably, the outer periphery of the connector is provided with a first protrusion, a second protrusion, a third protrusion and a fourth protrusion in sequence along an axial direction of the connector, a first groove is formed between one end of the first protrusion and one end of the second protrusion, the other end of the second protrusion is connected with one end of the third protrusion, a second groove is formed between the other end of the third protrusion and one end of the fourth protrusion, the other end of the fourth protrusion is in butt joint with the end of the connector, a part of the second protrusion is located in the first cavity, a part of the second protrusion is located in the second cavity, a part of the second protrusion is located in the third cavity, one end of the second protrusion is sleeved on the connector and is in butt joint with the end of the second protrusion, and the other end of the catheter extends out of the catheter lock.
In any of the above aspects, it is preferable that the outer diameter of the catheter is the same as the inner diameter of a third lumen, which is larger than the inner diameter of the second lumen.
The invention also provides an assembling method of the shear type transfusion harbor structure, which comprises the following steps:
the first step, the diaphragm is placed in a first inner cavity of the upper cover, a lower cover with a connector is arranged at the lower part of the upper cover, the diaphragm is extruded by the upper cover and the lower cover, and an annular convex edge of the lower cover is connected with the annular groove in an interference fit manner.
And secondly, the assembled transfusion port is inversely placed on a welding tool, a welding head of an ultrasonic welding machine is attached to the bottom of the transfusion port, heat is generated through vibration of the welding head, the interference fit between the annular convex edge of the lower cover and the annular groove is melted, and at the moment, the lower cover is just embedded into the upper cover, so that welding fixation between the upper cover and the lower cover is realized.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. The upper end face and the lower end face of the diaphragm are respectively abutted with the annular compression ring and the lower cover body, so that structural stability between the diaphragm in the first inner cavity and the upper cover main body is guaranteed, the annular compression ring and the lower cover main body respectively squeeze the diaphragm, the diaphragm is compressed in the vertical direction and is diffused towards the periphery in the transverse direction, the tight degree of adhesion between the periphery of the diaphragm and the inner wall of the first inner cavity is enhanced, and sealing performance is improved.
2. The annular flange of upper cover on the inner wall of first inner chamber and the ring channel that forms between upper cover annular flange and the upper cover main part, the lower cover main part is connected through the cooperation of the annular flange of lower cover on it and ring channel, forms shearing formula structure between the inside and the lower cover main part of messenger's upper cover main part, and the annular flange of upper cover is retrained each other with the annular flange of lower cover to strengthen the compactness between upper cover and the lower cover, improve the joint strength between the two, and then strengthen the holistic structural strength of transfusion harbor.
3. The upper cover main part periphery its upper portion is the sewing up portion, and the sewing up portion is curved surface structure, and curved surface structure can better laminate with skin, is convenient for implant under the skin, reduces patient's skin wound. The lower part of the periphery of the upper cover main body is a holding part, and the cylindrical surface structure of the holding part has larger friction force compared with a curved surface structure, is convenient to hold and is not easy to slide.
4. The suture part is provided with a plurality of suture holes, and when the subcutaneous infusion port is implanted, a doctor can suture the subcutaneous infusion port through the suture holes, so that the subcutaneous infusion port is not easy to turn over, and the risk of secondary operation and the operation cost of a patient are reduced.
5. The upper cover annular convex edge is connected with the annular groove through interference fit, an ultrasonic welding process is adopted, the interference fit part between the lower cover annular convex edge and the annular groove is melted, at the moment, the lower cover is just embedded into the upper cover, welding fixation between the upper cover and the lower cover is realized, and the lower cover annular convex edge and the upper cover can be guaranteed to be integrated into a whole in the annular groove, so that a powerful structure and a good sealing effect are obtained.
The structure and assembly method of the shear type transfusion harbor of the present invention will be further described with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic view of a shear type port structure according to the present invention;
FIG. 2 is a schematic view of a shear type port structure according to another aspect of the present invention;
FIG. 3 is a cross-sectional view of a shear type port structure of the present invention;
FIG. 4 is an enlarged view of the structure at A in FIG. 3;
FIG. 5 is a cross-sectional view of the upper cover A-A of FIG. 1;
FIG. 6 is a schematic view of the structure of the lower cover and the connecting assembly in the shear type port structure of the present invention;
FIG. 7 is a schematic view of a connector assembly in a shear type port structure according to the present invention;
FIG. 8 is a schematic view of the structure of the connecting head in FIG. 7;
FIG. 9 is a schematic view of the catheter lock of FIG. 7;
Wherein: 1. an upper cover; 11. an upper cover main body; 12. an annular compression ring; 13. a first lumen; 14. an annular convex edge of the upper cover; 15. an annular groove; 16. a second lumen; 17. a mounting groove; 18. stitching the hole; 2. a lower cover; 21. a lower cover main body; 22. a liquid storage cavity; 23. an annular convex edge of the lower cover; 24. a mounting base; 3. a diaphragm; 4. a connector; 41. a first protrusion; 42. a first groove; 43. a second protrusion; 44. a third protrusion; 45. a second groove; 46. a fourth protrusion; 5. a catheter lock; 51. an inner lock tube; 511. a first cavity; 512. a second cavity; 513. a third cavity; 52. an outer lock tube; 521. a fourth cavity; 522. a fifth cavity; 6. a catheter.
Detailed Description
Example 1
As shown in fig. 1-6, the invention provides a shear type transfusion harbor structure, which comprises an upper cover 1, a lower cover 2, a diaphragm 3 and a connector 4, wherein the upper cover 1 comprises an upper cover main body 11, a first inner cavity 13 and a second inner cavity 16 which are mutually communicated are arranged in the upper cover main body 11 from top to bottom, an annular pressing ring 12 connected with the top of the upper cover main body 11 is arranged at the top of the first inner cavity 13, the diaphragm 3 is arranged in the first inner cavity 13 and is abutted against the annular pressing ring 12, an upper cover annular convex edge 14 which extends downwards is arranged on the inner wall of the first inner cavity 13, an annular groove 15 is formed between the upper cover annular convex edge 14 and the inner wall of the upper cover main body 11, the annular groove 15 is communicated with the upper part of the second inner cavity 16, a mounting groove 17 is arranged at the bottom of the upper cover main body 11, and the mounting groove 17 is communicated with the lower part of the second inner cavity 16; the lower cover 2 comprises a lower cover main body 21 arranged in the second inner cavity 16, the upper end of the lower cover main body 21 is abutted against the diaphragm 3, a liquid storage cavity 22 is arranged in the lower cover main body 21, liquid medicine is stored in the liquid storage cavity 22, the periphery of the upper end of the lower cover main body 21 is provided with a lower cover annular convex edge 23, the lower cover annular convex edge 23 is connected with the annular groove 15 in a matching way, the lower end of the lower cover main body 21 is provided with an installation seat 24, the installation seat 24 is connected with the installation groove 17 in a matching way, and the inner diameters of the first inner cavity 13, the second inner cavity 16 and the installation groove 17 are sequentially increased; the connector 4 is provided on the lower cover main body 21 and extends out of the upper cover 1.
The upper cover 1, the lower cover 2, the diaphragm 3 and the connector 4 are respectively injection-molded parts. Wherein, the lower cover 2 is pre-buried in the lower cover 2 with the one end of connector 4 when injection moulding. Through the production technology that adopts pre-buried moulding plastics, can realize carrying out the connection of moulding plastics to connector 4 of different structures, be applicable to the structure of any connector 4.
In this embodiment, the upper and lower both ends face of diaphragm 3 respectively with annular clamping ring 12, mutual butt between the lower cover 2 body, guarantee the structural stability between diaphragm 3 and the upper cover main part 11 in the first inner chamber 13, annular clamping ring 12 and lower cover 2 body extrude diaphragm 3 respectively simultaneously, and diaphragm 3 is compressed in the vertical direction, and the diffusion of periphery in the transverse direction strengthens the tight degree of adherence between diaphragm 3 periphery and the inner wall of first inner chamber 13, improves sealing performance. The upper cover annular convex edge 14 on the inner wall of the first inner cavity 13 and the annular groove 15 formed between the upper cover annular convex edge 14 and the upper cover main body 11, the lower cover main body 21 is connected with the annular groove 15 in a matched manner through the upper lower cover annular convex edge 23, so that a shearing structure is formed between the inner part of the upper cover main body 11 and the lower cover main body 21, the upper cover annular convex edge 14 and the lower cover annular convex edge 23 are mutually restrained, the tightness between the upper cover 1 and the lower cover 2 is enhanced, the connection strength between the upper cover annular convex edge and the lower cover main body is improved, and the integral structural strength of the transfusion port is enhanced.
Further, the upper portion of the outer periphery of the upper cover main body 11 is a stitching portion, the stitching portion is of a curved surface structure, the curved surface structure can be better attached to the skin, subcutaneous implantation is facilitated, and skin wounds of a patient are reduced. The lower part of the periphery of the upper cover main body 11 is a holding part, and the cylindrical surface structure of the holding part has larger friction force, is convenient to hold and is not easy to slide compared with the curved surface structure.
Furthermore, the suture part is provided with a plurality of suture holes 18, and when the subcutaneous infusion port is implanted, a doctor can suture the subcutaneous infusion port through the suture holes 18, so that the subcutaneous implantation infusion port is not easy to turn over, and the risk of secondary operation and the operation cost of a patient are reduced.
Further, the separator 3 is a silica gel separator.
Further, as shown in fig. 7, the other end of the connector 4 is connected with the conduit 6 and inserted into the conduit lock 5, and the conduit lock 5, the conduit 6 and the connector 4 are connected in an interference fit. When in use, one end of the connector 4 is inserted into the conduit 6, and then the connector 4 and the conduit 6 are inserted into the conduit lock 5. Through forming interference fit between connector 4, pipe 6 and the pipe lock 5 and being connected, realize the self-locking function between connector 4, pipe 6 and the pipe lock 5 three, simple structure, firm in connection, simple to operate are swift, and the leakproofness is strong, do not leak to improve clinical operation's efficiency, reduce operation time, reduce patient's misery, do not have the slippage phenomenon after implanting the human body, avoid the risk of secondary operation, and reduce the operation expense for the patient.
Still further, as shown in fig. 8 and 9, the catheter lock 5 includes an inner lock tube 51 and an outer lock tube 52, a first cavity 511, a second cavity 512 and a third cavity 513 are sequentially communicated with each other in the axial direction of the inner lock tube 51, a fourth cavity 521 and a fifth cavity 522 are sequentially communicated with each other in the axial direction of the outer lock tube 52, one end of the inner lock tube 51 is inserted and fixed in the fourth cavity 521, and the fifth cavity 522 is communicated with the third cavity 513. The periphery of the connector 4 is sequentially provided with a first bulge 41, a second bulge 43, a third bulge 44 and a fourth bulge 46 along the axial direction, a first groove 42 is formed between one end of the first bulge 41 and one end of the second bulge 43, the other end of the second bulge 43 is connected with one end of the third bulge 44, a second groove 45 is formed between the other end of the third bulge 44 and one end of the fourth bulge 46, the other end of the fourth bulge 46 is in butt joint with the end of the connector 4, a part of the second bulge 43 is positioned in the first cavity 511, the second groove 45 sequentially penetrates through the first cavity 513, the second cavity 513 and the third cavity 513, the fourth bulge 46 is positioned in the third cavity 513, the catheter 6 is sleeved on the connector 4, one end of the catheter 6 is in butt joint with the end of the second bulge 43, and the other end of the catheter 6 extends out of the catheter lock 5.
The inner lock tube 51 and the outer lock tube 52 are made of polysulfone resin material, and the outer lock tube 52 is made of silica gel material. The polysulfone resin material is hard material, so that the extrusion of the inner locking pipe 51 to the guide pipe 6 can be realized, and the interference fit connection among the connector 4, the guide pipe 6 and the guide pipe lock 5 can be realized; the silica gel material is elastic, and when the catheter is guided into a human body, the end part of the outer lock tube 52 has a compression effect on the catheter 6 under the action of external force, so that the connection stability of the catheter 6 between the connector 4 and the catheter lock 5 is further ensured, and the tightness between the catheter lock 5 and the catheter 6 is ensured.
The second bulge 43 can carry out quick connection with the catheter lock 5 and the transfusion harbor, and first recess 42 between first bulge 41 and the second bulge 43 can make the material of moulding plastics inlay and establish to first recess 42 in, guarantees the connection structure stability between connector 4 and the lower cover main part 21 main part, prevents to drop between connector 4 and the lower cover main part 21. The second projection 43 has a limiting effect on the catheter 6, preventing the catheter 6 from sliding out of the catheter lock 5.
Still further, the outer diameter of conduit 6 is the same as the inner diameter of third chamber 513, and the inner diameter of third chamber 513 is greater than the inner diameter of second chamber 512. The conduit 6 in the second cavity 512 is extruded under the action of the inner wall of the inner locking tube 51 and fills the second groove 45, so that the connection stability of the conduit 6 between the conduit lock 5 and the connector 4 is ensured, and the conduit 6 is prevented from slipping.
Example 2
An assembling method of a shear type transfusion harbor structure comprises the following steps:
In the first step, the diaphragm 3 is placed in the first inner cavity 13 of the upper cover 1, the lower cover 2 with the connector 4 is arranged at the lower part of the upper cover 1, the diaphragm 3 is extruded by the upper cover 1 and the lower cover 2, and the lower cover annular convex edge 23 on the lower cover 2 is connected with the annular groove 15 in an interference fit manner.
And secondly, the assembled transfusion port is reversely placed on a welding tool, a welding head of an ultrasonic welding machine is attached to the bottom of the transfusion port, heat is generated through vibration of the welding head, the interference fit between the annular convex edge 23 of the lower cover and the annular groove 15 is melted, at the moment, the lower cover 2 is just embedded into the upper cover 1, welding fixation between the upper cover 1 and the lower cover 2 is realized, and the annular convex edge 23 of the lower cover and the upper cover 1 are integrated into a whole in the annular groove 15, so that a strong structure and a good sealing effect are obtained.
Specifically, ultrasonic welding begins with melting small and initially touching areas to complete the weld, and then continues along its vertical walls as the parts are embedded together with controlled interface melting to achieve a strong structure and good sealing because the melted areas of the interface do not allow ambient air to enter.
The above examples are only illustrative of the preferred embodiments of the present invention and are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art to the technical solution of the present invention should fall within the scope of protection defined by the claims of the present invention without departing from the spirit of the present invention.
Claims (7)
1. The utility model provides a shear type transfusion harbor structure, includes upper cover, lower cover, diaphragm and connector, its characterized in that:
The upper cover, the lower cover, the diaphragm and the connector are injection molding pieces respectively, and one end of the connector is embedded in the lower cover when the lower cover is injection molded;
the upper cover comprises an upper cover main body, a first inner cavity and a second inner cavity which are mutually communicated are arranged in the upper cover main body from top to bottom, an annular compression ring connected with the top of the upper cover main body is arranged at the top of the first inner cavity, the diaphragm is arranged in the first inner cavity and is abutted to the annular compression ring, an upper cover annular convex edge which extends downwards is arranged on the inner wall of the first inner cavity, an annular groove is formed between the upper cover annular convex edge and the inner wall of the upper cover main body, the annular groove is communicated with the upper part of the second inner cavity, and a mounting groove is formed in the bottom of the upper cover main body and is communicated with the lower part of the second inner cavity; the lower cover comprises a lower cover main body arranged in the second inner cavity, the upper end of the lower cover main body is abutted against the diaphragm, a liquid storage cavity is arranged in the lower cover main body, a lower cover annular convex edge is arranged on the periphery of the upper end of the lower cover main body, the lower cover annular convex edge is in interference fit connection with the annular groove, a mounting seat is arranged at the lower end of the lower cover main body, and the mounting seat is in fit connection with the mounting groove; one end of the connector is arranged on the lower cover main body and extends out of the upper cover;
the other end of the connector is connected with the catheter and inserted into the catheter lock, and the catheter lock, the catheter and the connector are connected in an interference fit manner;
the catheter lock comprises an inner lock tube and an outer lock tube, wherein a first cavity, a second cavity and a third cavity which are communicated in sequence are arranged in the inner lock tube along the axial direction of the inner lock tube, a fourth cavity and a fifth cavity which are communicated in sequence are arranged in the outer lock tube along the axial direction of the outer lock tube, one end of the inner lock tube is inserted and fixed in the fourth cavity, and the fifth cavity is communicated with the third cavity;
The outer lock tube is made of silica gel material;
the welding fixation between the upper cover and the lower cover generates heat through vibration of the welding head, so that the interference fit part between the annular convex edge of the lower cover and the annular groove is melted, and the lower cover is just embedded into the upper cover.
2. The shear type port structure of claim 1, wherein: the upper cover main body is characterized in that the upper part of the periphery of the upper cover main body is a stitching part, the lower part of the upper cover main body is a holding part, and the stitching part is of a curved surface structure.
3. The shear type port structure according to claim 2, wherein: the stitching part is provided with a plurality of stitching holes.
4. The shear type port structure of claim 1, wherein: the diaphragm is a silica gel diaphragm.
5. The shear type port structure of claim 4, wherein: the periphery of connector is equipped with first arch, second arch, third arch and fourth arch in proper order along its axis direction, form first recess between the bellied one end of first arch and second, the bellied other end of second and third are connected, form the second recess between the bellied other end of third and the bellied one end of fourth, the bellied other end of fourth and the tip butt joint of connector, the bellied part of second is located first cavity, the second recess wears to locate in proper order in first, second, the third cavity, the fourth arch is located the third cavity, its one end and the bellied tip butt of second on just the connector are established to the catheter sleeve, the other end of catheter extends outside the catheter lock.
6. The shear type port structure of claim 4, wherein: the outer diameter of the catheter is the same as the inner diameter of the third cavity, which is larger than the inner diameter of the second cavity.
7. A method of manufacturing the shear type port structure according to any one of claims 1 to 6, wherein: the method comprises the following steps:
The first step, a diaphragm is placed in a first inner cavity of an upper cover, a lower cover with a connector is arranged at the lower part of the upper cover, and the diaphragm is extruded by the upper cover and the lower cover;
and secondly, the assembled transfusion port is inversely placed on a welding tool, a welding head of an ultrasonic welding machine is attached to the bottom of the transfusion port, heat is generated through vibration of the welding head, the interference fit between the annular convex edge of the lower cover and the annular groove is melted, and at the moment, the lower cover is just embedded into the upper cover, so that welding fixation between the upper cover and the lower cover is realized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910604551.1A CN110368550B (en) | 2019-07-05 | 2019-07-05 | Shear type transfusion harbor structure and assembling method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910604551.1A CN110368550B (en) | 2019-07-05 | 2019-07-05 | Shear type transfusion harbor structure and assembling method |
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| Publication Number | Publication Date |
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| CN110368550A CN110368550A (en) | 2019-10-25 |
| CN110368550B true CN110368550B (en) | 2024-04-26 |
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| CN201910604551.1A Active CN110368550B (en) | 2019-07-05 | 2019-07-05 | Shear type transfusion harbor structure and assembling method |
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| CN118001505B (en) * | 2024-04-08 | 2024-06-04 | 山东百多安医疗器械股份有限公司 | Anti-drop pipe and anti-overturning transfusion port |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3046081U (en) * | 1997-08-08 | 1998-02-20 | 啓清 陳 | Container closure |
| CN2527286Y (en) * | 2001-11-14 | 2002-12-25 | 吴启仁 | Self-destroying disposable syringe |
| KR200317751Y1 (en) * | 2003-03-21 | 2003-06-25 | (주) 베리콤 | Injection Syringe for preventing bubbles from flowing in and mixing |
| JP2004350937A (en) * | 2003-05-29 | 2004-12-16 | Clinical Supply:Kk | Liquid chemical injection device |
| CN101389366A (en) * | 2005-11-03 | 2009-03-18 | 巴顿医疗设备有限公司 | Fluid delivery devices, systems and methods |
| CN101678199A (en) * | 2007-06-22 | 2010-03-24 | 医疗器械公司 | Low profile venous access port assembly |
| CN201658599U (en) * | 2010-01-20 | 2010-12-01 | 湖南千山制药机械股份有限公司 | Inverted infusion package |
| CN202740520U (en) * | 2012-08-07 | 2013-02-20 | 金琼绮 | Air return device of infusion device |
| CN104010692A (en) * | 2011-12-21 | 2014-08-27 | 泰尔茂临床器械商贸株式会社 | Subcutaneously implanted device for injecting drug solution |
| JP2014210004A (en) * | 2013-04-18 | 2014-11-13 | ニプロ株式会社 | Subcutaneously implanting-type port |
| CN208756692U (en) * | 2018-02-24 | 2019-04-19 | 无锡市人民医院 | Transfusion port |
| CN210873432U (en) * | 2019-07-05 | 2020-06-30 | 天津塞科凯尔科技有限公司 | Shearing type transfusion port structure |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070270770A1 (en) * | 2006-05-18 | 2007-11-22 | Medical Components, Inc. | Venous access port assembly and method of making same |
| MX344665B (en) * | 2006-10-18 | 2017-01-04 | Medical Components Inc | Venous access port assembly with radiopaque indicia. |
| JP5606855B2 (en) * | 2010-09-29 | 2014-10-15 | 日本コヴィディエン株式会社 | Subcutaneous implantation port and manufacturing method thereof |
-
2019
- 2019-07-05 CN CN201910604551.1A patent/CN110368550B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3046081U (en) * | 1997-08-08 | 1998-02-20 | 啓清 陳 | Container closure |
| CN2527286Y (en) * | 2001-11-14 | 2002-12-25 | 吴启仁 | Self-destroying disposable syringe |
| KR200317751Y1 (en) * | 2003-03-21 | 2003-06-25 | (주) 베리콤 | Injection Syringe for preventing bubbles from flowing in and mixing |
| JP2004350937A (en) * | 2003-05-29 | 2004-12-16 | Clinical Supply:Kk | Liquid chemical injection device |
| CN101389366A (en) * | 2005-11-03 | 2009-03-18 | 巴顿医疗设备有限公司 | Fluid delivery devices, systems and methods |
| CN101678199A (en) * | 2007-06-22 | 2010-03-24 | 医疗器械公司 | Low profile venous access port assembly |
| CN201658599U (en) * | 2010-01-20 | 2010-12-01 | 湖南千山制药机械股份有限公司 | Inverted infusion package |
| CN104010692A (en) * | 2011-12-21 | 2014-08-27 | 泰尔茂临床器械商贸株式会社 | Subcutaneously implanted device for injecting drug solution |
| CN202740520U (en) * | 2012-08-07 | 2013-02-20 | 金琼绮 | Air return device of infusion device |
| JP2014210004A (en) * | 2013-04-18 | 2014-11-13 | ニプロ株式会社 | Subcutaneously implanting-type port |
| CN208756692U (en) * | 2018-02-24 | 2019-04-19 | 无锡市人民医院 | Transfusion port |
| CN210873432U (en) * | 2019-07-05 | 2020-06-30 | 天津塞科凯尔科技有限公司 | Shearing type transfusion port structure |
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| CN110368550A (en) | 2019-10-25 |
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