Transfusion bag connecting bridge pipe assembly

Abstract

The utility model discloses an infusion bag connecting bridge pipe assembly, and particularly relates to the technical field of medical instruments, the infusion bag connecting bridge pipe assembly comprises a first connecting pipe, one end of the first connecting pipe is connected with a first puncture head, the other end of the first connecting pipe is connected with a three-way pipe, and two ends of the side edge of the three-way pipe are symmetrically connected with second connecting pipes; the end, opposite to the three-way pipe, of the second connecting pipe is connected with a second puncture head. The connecting mechanism is arranged, so that the two second connecting pipes can be fixedly connected to the ports of the two side edges of the three-way pipe respectively, the sealing assembly is arranged, the tightness of connection between the second connecting pipes and the ports of the three-way pipe can be greatly enhanced, the second connecting pipes can be selectively installed on the ports of the two side edges of the three-way pipe when the three-way pipe is used, and the use is convenient. When the second connecting pipe is not connected, the end opening can be sealed through the sealing cap structure, then multiple bags of liquid medicine can be selectively connected according to requirements, operation is easy and convenient, applicability is high, and the using effect of the device is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to an infusion bag connecting bridge tube component. Background Art

[0002] Medical devices refer to instruments, equipment, appliances, in vitro diagnostic reagents and calibrators, materials and other similar or related items used directly or indirectly on the human body, including medical equipment and medical consumables. They involve multiple industries such as medicine, machinery, electronics and plastics. They are a multidisciplinary, knowledge-intensive and capital-intensive high-tech industry.

[0003] At present, in the process of infusion treatment for patients, since the infusion of medicine is often more than one bag, mostly two or three bags, and after one bag of medicine is infused, the puncture head of the infusion set needs to be unplugged and inserted into another bag. This is not only cumbersome, time-consuming and labor-intensive, but also easy to be neglected and forgotten. Therefore, a pipe is usually used to connect the two infusion bags to each other, without the need for a second dressing change, thus saving labor costs. However, the existing connecting bridge pipe has a simple structure and a relatively single function, and it is inconvenient to selectively connect multiple bags of medicine according to needs, resulting in poor applicability of the device, which greatly affects the actual use effect. Utility Model Content

[0004] The purpose of the utility model is to provide an infusion bag connecting bridge tube assembly, which can quickly and fixedly connect the two second connecting tubes to the two side ports of the three-way tube by setting a connecting mechanism, and can greatly enhance the tightness of the connection between the second connecting tube and the three-way tube port by setting a sealing assembly. When in use, the two side ports of the three-way tube can be optionally installed with the second connecting tubes, and the ports can be closed by a sealing cap structure when the second connecting tubes are not connected, so that multiple bags of liquid medicine can be selectively connected according to needs. The operation is simple and convenient, the applicability is strong, and the use effect of the device is greatly improved to solve the above-mentioned deficiencies in the technology.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: an infusion bag connecting bridge tube assembly, comprising:

[0006] A first connecting tube, one end of which is connected to a first puncture head, and the other end of which is connected to a three-way tube, two ends of the side of the three-way tube are symmetrically connected to second connecting tubes, one end of the second connecting tube relative to the three-way tube is connected to a second puncture head, and a vent valve is provided between the second puncture head and the three-way tube;

[0007] The connecting mechanism includes a first threaded layer symmetrically arranged on the outer walls of the two ports of the tee pipe, a fixing head is fixed to the outer side of one end of the second connecting pipe relative to the second puncture head, a second threaded layer is arranged on the outer wall of the fixing head, and a threaded cylinder is screwed and connected between the second threaded layer and the outer wall of the first threaded layer, and a sealing assembly is arranged between the second connecting pipe and the port of the tee pipe.

[0008] Preferably, the sealing assembly includes a slot opened between the inner and outer sides of the three-way pipe port, one end of the fixed head is connected to a clamping ring matching the slot, one end of the second connecting pipe is fixed with a plug in the clamping ring, and the plug can be inserted into the port of the three-way pipe.

[0009] Preferably, the inner and outer diameters of the fixing head are the same as the inner and outer diameters of the three-way pipe port.

[0010] Preferably, a first retaining ring is fixed to the outside of the port of the tee tube on a side close to the first threaded layer, a second retaining ring is fixed to the outside of one end of the fixed head on a side close to the second threaded layer, and the threaded barrel is arranged between the first retaining ring and the second retaining ring.

[0011] Preferably, a fixing handle is fixed to the outer wall of the threaded barrel.

[0012] Preferably, the infusion bag connecting bridge tube assembly also includes a sealing cap structure, and the sealing cap structure includes a threaded cap, which can be connected to one end of the first threaded layer by threaded engagement, and a rubber plug is fixed in the middle of the threaded cap, and the rubber plug can be inserted into the port of the three-way tube.

[0013] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0014] By setting a connection mechanism, the connection mechanism is composed of a fixed head, a first thread layer, a second thread layer and a threaded barrel. Under the action of this connection mechanism, the two second connection pipes can be quickly fixedly connected to the two side ports of the three-way pipe respectively, and by setting a sealing component, the tightness of the connection between the second connection pipe and the three-way pipe port can be greatly enhanced under the internal and external plug-in sealing of the sealing component, thereby effectively preventing the leakage of the liquid medicine;

[0015] When in use, the second connecting pipes can be optionally installed on the two side ports of the three-way pipe, and the ports not connected to the second connecting pipe can be closed by a sealing cap structure, so that multiple bags of liquid medicine can be selectively connected according to needs. The operation is simple and convenient, the applicability is strong, and the use effect of the device is greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the connection structure between the three-way pipe and two threaded caps of the utility model;

[0019] Figure 3 It is a schematic diagram of the explosion structure of the three-way pipe and two second connecting pipes of the utility model;

[0020] Figure 4 It is a schematic diagram of the exploded structure of the three-way pipe and two threaded caps of the utility model.

[0021] Description of reference numerals:

[0022] 1. First connecting tube; 2. First piercing head; 3. Three-way tube; 4. Second connecting tube; 5. Second piercing head; 6. Ventilation valve; 7. First threaded layer; 8. First retaining ring; 9. Threaded cap; 10. Rubber plug; 11. Fixed head; 12. Second threaded layer; 13. Second retaining ring; 14. Threaded barrel; 15. Fixed handle; 16. Plug; 17. Snap ring; 18. Slot. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0024] The utility model provides Figure 1-Figure 4 An infusion bag connecting bridge tube assembly is shown, comprising:

[0025] A first connecting tube 1, one end of which is connected to a first puncture head 2, and the other end of which is connected to a three-way tube 3, two ends of the sides of the three-way tube 3 are symmetrically connected to second connecting tubes 4, one end of the second connecting tube 4 relative to the three-way tube 3 is connected to a second puncture head 5, and a vent valve 6 is provided between the second puncture head 5 and the three-way tube 3; the vent valve 6 is similar to the vent structure of the puncture head end of the infusion set, because the infusion bag connected to the first puncture head 2 is connected to the infusion set, so there is no need to set a vent valve 6 at the bottom end of the first puncture head 2, and only needs to set a vent valve 6 at the bottom end of the second puncture head 5, so that when two or more infusion bags are connected, the medicine can flow out of the infusion bag.

[0026] The connecting mechanism includes a first threaded layer 7 symmetrically arranged on the outer wall of the two ends of the tee pipe 3, a fixed head 11 is fixed to the outer side of one end of the second connecting pipe 4 relative to the second puncture head 5, a second threaded layer 12 is arranged on the outer wall of the fixed head 11, and a threaded tube 14 is screwed and connected between the second threaded layer 12 and the outer wall of the first threaded layer 7, and a sealing assembly is arranged between the second connecting pipe 4 and the end of the tee pipe 3.

[0027] The sealing assembly includes a groove 18 opened between the inner and outer sides of the port of the tee pipe 3, one end of the fixed head 11 is connected to a clamping ring 17 matching the groove 18, one end of the second connecting pipe 4 is fixed with a plug 16 located in the clamping ring 17, and the plug 16 can be inserted into the port of the tee pipe 3.

[0028] The inner and outer diameters of the fixing head 11 are the same as the inner and outer diameters of the three ports of the tee pipe.

[0029] The infusion bag connecting bridge pipe assembly also includes a capping structure, and the capping structure includes a threaded cap 9, which can be connected to one end of the first threaded layer 7 by screwing, and a rubber plug 10 is fixed in the middle of the threaded cap 9, and the rubber plug 10 can be inserted into the port of the tee 3. By screwing the threaded cap 9 on the end of the first threaded layer 7 and inserting the rubber plug 10 into the port of the tee 3, the port of the tee 3 can be closed.

[0030] When in use, the second connecting tube 4 can be connected to the side port of the tee tube 3, and the fixed head 11 on the second connecting tube 4 is aligned with the port of the tee tube 3, and the plug 16 is inserted into the port of the tee tube 3, and the clamping ring 17 is inserted into the clamping groove 18. Under the plug-in sealing of the internal and external structures, the tightness of the connection between the second connecting tube 4 and the port of the tee tube 3 can be greatly enhanced, thereby effectively preventing the leakage of the liquid medicine during infusion;

[0031] Then, the threaded barrel 14 on the first threaded layer 7 can be rotated to move one end of the threaded barrel 14 to the second threaded layer 12. At this time, the threaded barrel 14 is screwed and connected between the first threaded layer 7 and the second threaded layer 12, so that the second connecting pipe 4 can be quickly fastened to the tee pipe 3.

[0032] During infusion, the first puncture head 2 can be inserted into an infusion bag connected to an infusion device, and two second connecting tubes 4 can be optionally installed on the three-way tube 3 according to needs. If the two second connecting tubes 4 are fixedly connected, the second puncture heads 5 on the two second connecting tubes 4 can be respectively inserted into two infusion bags to achieve the connection of multiple bags of liquid medicine without the need for multiple dressing changes. When one second connecting tube 4 is connected, the port of the other three-way tube 3 can be closed by a threaded cap 9, so that multiple bags of liquid medicine can be selectively connected according to needs. The operation is simple and convenient, the applicability is strong, and the use effect of the device is greatly improved.

[0033] A first retaining ring 8 is fixed to the outside of the port of the tee pipe 3 near the first threaded layer 7 , a second retaining ring 13 is fixed to the outside of one end of the fixed head 11 near the second threaded layer 12 , and a threaded barrel 14 is arranged between the first retaining ring 8 and the second retaining ring 13 .

[0034] By providing the first stop ring 8 and the second stop ring 13 , the moved threaded barrel 14 can be blocked to prevent the threaded barrel 14 from excessively moving.

[0035] A fixing handle 15 is fixed to the outer wall of the threaded barrel 14. The fixing handle 15 facilitates the threaded barrel 14 to be rotated.

[0036] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An infusion bag connecting bridge tube assembly, characterized in that: include: A first connecting tube (1), one end of which is connected to a first puncture head (2), and the other end of which is connected to a three-way tube (3), two ends of the side of the three-way tube (3) are symmetrically connected to second connecting tubes (4), one end of the second connecting tube (4) opposite to the three-way tube (3) is connected to a second puncture head (5), and a vent valve (6) is provided between the second puncture head (5) and the three-way tube (3); A connecting mechanism, the connecting mechanism comprising a first threaded layer (7) symmetrically arranged on the outer wall of two ends of a three-way pipe (3); a fixing head (11) is fixed to the outer side of one end of the second connecting pipe (4) relative to the second puncture head (5); a second threaded layer (12) is arranged on the outer wall of the fixing head (11); a threaded cylinder (14) is screwed and connected between the second threaded layer (12) and the outer wall of the first threaded layer (7); and a sealing component is arranged between the second connecting pipe (4) and the end of the three-way pipe (3).

2. The infusion bag connecting bridge tube assembly according to claim 1, characterized in that: The sealing assembly comprises a groove (18) opened between the inner side and the outer side of the port of the three-way pipe (3); one end of the fixed head (11) is connected to a clamping ring (17) matching the groove (18); one end of the second connecting pipe (4) is fixed with a plug (16) located in the clamping ring (17); and the plug (16) can be plugged into the port of the three-way pipe (3).

3. The infusion bag connecting bridge tube assembly according to claim 1, characterized in that: The inner and outer diameters of the fixed head (11) are the same as the inner and outer diameters of the port of the three-way pipe (3).

4. The infusion bag connecting bridge tube assembly according to claim 1, characterized in that: A first retaining ring (8) is fixed to the outside of the port of the three-way pipe (3) on a side close to the first threaded layer (7), a second retaining ring (13) is fixed to the outside of one end of the fixed head (11) on a side close to the second threaded layer (12), and the threaded barrel (14) is arranged between the first retaining ring (8) and the second retaining ring (13).

5. The infusion bag connecting bridge tube assembly according to claim 1, characterized in that: A fixing handle (15) is fixed to the outer wall of the threaded cylinder (14).

6. The infusion bag connecting bridge tube assembly according to claim 1, characterized in that: The infusion bag connecting bridge tube assembly also includes a sealing cap structure, and the sealing cap structure includes a threaded cap (9), and the threaded cap (9) can be connected to one end of the first threaded layer (7) by screwing, and a rubber plug (10) is fixed in the middle of the threaded cap (9), and the rubber plug (10) can be inserted into the port of the three-way tube (3).

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