Overflow type infusion puncture outfit assembly

Abstract

The utility model relates to the technical field of infusion puncture outfits, in particular to an overflow type infusion puncture outfit assembly. The device comprises a puncture outfit, a dropper and an overflow structure, the upper end of the dropper is clamped with the puncture outfit, the lower end of the dropper is clamped with the overflow structure, and the liquid outlet end of the overflow structure is provided with a liquid outlet connector; the overflow structure comprises an outer overflow pipe, an inner overflow pipe is arranged in the center of the outer overflow pipe, a plurality of outer overflow grooves are formed in the side face of the outer overflow pipe and communicate the exterior of the outer overflow pipe with an inner cavity of the outer overflow pipe, and a plurality of inner overflow grooves are formed in the side face of the inner overflow pipe and communicate the inner cavity of the outer overflow pipe with an inner cavity of the inner overflow pipe. By adopting an inner and outer double-layer overflow structure, the automatic exhaust inside the puncture outfit can be realized, the exhaust effect is improved, the mixing of bubbles in infusion liquid is reduced, and the normal infusion is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of infusion puncture sets, in particular to an overflow infusion puncture set component. Background Art

[0002] An infusion puncture set is a medical device used for infusion. In order to ensure the safety of infusion, the residual air in drug storage devices such as infusion bags needs to be exhausted as much as possible before infusing the patient.

[0003] In the prior art, in order to exhaust the residual air in the medicine storage device, the nurses performing the infusion operation often squeeze the drip bucket to make the liquid flow quickly to two-thirds of the dropper. This not only wastes the nurses' time, but also if the nurses manually squeeze the drip bucket, the squeezing force is too small so that the liquid level cannot reach the corresponding height, thereby affecting the normal exhaust effect and normal infusion. Utility Model Content

[0004] In view of the shortcomings of the above-mentioned existing production technology, the present application provides an overflow infusion puncture assembly, which can achieve automatic exhaust, improve the exhaust effect, reduce the mixing of bubbles in the infusion liquid, and ensure the normal progress of the infusion.

[0005] The technical solution adopted by the utility model is as follows:

[0006] An overflow infusion puncture assembly comprises a puncture apparatus, a dropper and an overflow structure, wherein the upper end of the dropper is clamped with the puncture apparatus, the lower end of the dropper is clamped with the overflow structure, and a liquid outlet joint is arranged at the liquid outlet end of the overflow structure; the overflow structure comprises an external overflow pipe, an internal overflow pipe is arranged at the center position inside the external overflow pipe, a plurality of external overflow grooves are arranged on the side of the external overflow pipe, the plurality of external overflow grooves connect the outside of the external overflow pipe with the inner cavity of the external overflow pipe, a plurality of internal overflow grooves are arranged on the side of the internal overflow pipe, the plurality of internal overflow grooves connect the inner cavity of the external overflow pipe with the inner cavity of the internal overflow pipe.

[0007] Furthermore, the outer overflow pipe and the inner overflow pipe are cylindrical structures, the outer overflow groove extends axially along the upper part of the side surface of the outer overflow pipe to the lowest end position, the inner overflow groove extends radially from the upper end surface of the inner overflow pipe to the outer edge, and then extends axially from the outer edge of the upper end surface of the inner overflow pipe to the lowest end position.

[0008] Furthermore, the lower end of the inner overflow pipe is connected to the inner tube seat of the cylindrical structure, the lower end of the outer overflow pipe is connected to the outer tube seat of the cylindrical structure, the inner tube seat is clamped on the inner ring of the outer tube seat, and the outer wall of the inner tube seat and the inner wall of the outer tube seat are interference fit.

[0009] Furthermore, a plurality of protruding positioning strips are vertically arranged on the inner side wall of the inner tube seat, and a plurality of positioning grooves are vertically arranged on the side wall of the outer tube seat, and the plurality of positioning strips are correspondingly inserted into the plurality of positioning grooves.

[0010] Furthermore, the center of the lower end of the inner tube seat is connected to a liquid outlet joint, the liquid outlet joint and the inner tube seat are integrally formed, and the liquid outlet joint is connected to the inner cavity of the inner overflow pipe.

[0011] Furthermore, the overflow structure is clamped at the lower end of the inner cavity of the dropper, and the outer ring of the overflow structure and the inner cavity of the dropper are interference fit.

[0012] Furthermore, the lower end of the inner overflow pipe is connected to the disc-shaped inner seat plate, the lower end of the outer overflow pipe is connected to the annular outer seat plate, and the inner seat plate is embedded in the inner ring of the outer seat plate.

[0013] Furthermore, a protruding seat plate positioning strip is provided on the inner ring surface of the outer seat plate, and a recessed seat plate positioning groove is provided on the outer ring surface of the inner seat plate, and the seat plate positioning strip is embedded in the seat plate positioning groove.

[0014] Furthermore, the puncture device includes a needle seat, a puncture needle is arranged at the center of the upper end of the needle seat, an infusion channel is arranged axially in the puncture needle, a dripping port is arranged at the center of the lower end of the needle seat, the dripping port is connected to the infusion channel, an air inlet channel is arranged axially in the puncture needle, an air inlet is arranged on the side of the needle seat, the air inlet is connected to the air inlet channel, a detachable air plug is connected on the air inlet, the air plug (can close or open the air inlet, a card slot is arranged on the outer ring of the lower end of the needle seat, and the card slot is card-connected with the upper end of the dropper.

[0015] Furthermore, the air plug includes an integrally formed mounting portion and a sealing portion. The mounting portion is detachably connected in the air inlet. An opening communicating with the air inlet is provided on the mounting portion. One side of the mounting portion is connected to the sealing portion, and the sealing portion can be sealed on the mounting portion opening.

[0016] The beneficial effects of the utility model are as follows:

[0017] The utility model adopts an inner and outer double-layer overflow structure, which can realize automatic exhaust inside the puncture device, improve the exhaust effect, reduce the mixing of bubbles in the infusion liquid, and ensure the normal infusion; at the same time, due to the existence of liquid surface tension and capillary phenomenon, the liquid will maintain a certain height in the dropper, and there is no need to exhaust the air in the tube when changing the medicine again, which facilitates the dressing change operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional diagram of the first embodiment of the present utility model.

[0019] Figure 2 It is a half-section view of the puncture device of the present utility model.

[0020] Figure 3 It is a three-dimensional diagram of the overflow structure of the first embodiment of the utility model.

[0021] Figure 4 for Figure 3 Schematic cross-section of .

[0022] Figure 5 This is a structural diagram of the internal overflow pipe of Example 1 of the utility model.

[0023] Figure 6 This is a structural diagram of the external overflow pipe of Example 1 of the utility model.

[0024] Figure 7 It is a three-dimensional diagram of the overflow structure of the second embodiment of the present utility model.

[0025] Figure 8 It is a half-section view of the overflow structure of the second embodiment of the utility model.

[0026] Fig. 9 This is a structural diagram of the external overflow pipe of the second embodiment of the utility model.

[0027] Fig.10 This is a structural diagram of the internal overflow pipe of the second embodiment of the utility model.

[0028] Among them: 100, puncture device; 110, needle seat; 120, puncture needle; 121, infusion channel; 122, air inlet channel; 130, air inlet; 140, air plug; 141, mounting part; 142, sealing part; 150, drip mouth; 160, card slot; 200, dropper; 300, overflow structure; 310, inner overflow pipe; 320, inner overflow groove; 330, inner tube seat; 331, positioning strip; 340, outer overflow pipe; 350, outer overflow groove; 360, outer tube seat; 361, positioning groove; 370, inner seat plate; 371, seat plate positioning groove; 380, outer seat plate; 381, seat plate positioning strip; 400, liquid outlet connector. DETAILED DESCRIPTION

[0029] The specific implementation of the present utility model is described below in conjunction with the accompanying drawings.

[0030] like Figure 1 In the first embodiment shown, an overflow infusion puncture assembly mainly includes a puncture 100, a dropper 200 and an overflow structure 300. The upper end of the dropper 200 is clamped with the puncture 100, and the puncture 100 can penetrate into the medicine storage device and guide the liquid in the medicine storage device into the dropper 200. The lower end of the dropper 200 is clamped with the overflow structure 300, and the liquid in the medicine storage device is guided by the puncture 100 to drip into the dropper 200, and then enters the overflow structure 300 from the dropper 200. A liquid outlet connector 400 is provided at the liquid outlet end of the overflow structure 300.

[0031] like Figure 1 and Figure 2As shown, the puncture device 100 includes a needle seat 110, a puncture needle 120 is arranged at the center of the upper end of the needle seat 110, an infusion channel 121 is arranged axially in the puncture needle 120, and a dropper 150 is arranged at the center of the lower end of the needle seat 110, and the dropper 150 is connected to the infusion channel 121. An air inlet channel 122 is arranged axially in the puncture needle 120, and an air inlet 130 is arranged on the side of the needle seat 110, and the air inlet 130 is connected to the air inlet channel 122. A detachable air plug 140 is connected to the air inlet 130, and the air plug 140 can close or open the air inlet 130. A card slot 160 is arranged on the outer ring of the lower end of the needle seat 110, and the card slot 160 is carded with the upper end of the dropper 200.

[0032] like Figure 1 As shown, the air plug 140 includes an integrally formed mounting portion 141 and a sealing portion 142. The mounting portion 141 is detachably connected to the air inlet 130. An opening communicating with the air inlet 130 is provided on the mounting portion 141. The sealing portion 142 is connected to one side of the mounting portion 141, and the sealing portion 142 can be sealed on the opening of the mounting portion 141.

[0033] like Figure 3 and Figure 4 As shown, the overflow structure 300 includes an outer overflow pipe 340 with a cylindrical structure and a hollow interior, an inner overflow pipe 310 with a cylindrical structure and a hollow interior is arranged at the center position of the outer overflow pipe 340, and three outer overflow grooves 350 are arranged on the side of the outer overflow pipe 340. The three outer overflow grooves 350 connect the outside of the outer overflow pipe 340 with the inner cavity of the outer overflow pipe 340. The three outer overflow grooves 350 are equidistantly distributed along the circumferential direction, and the outer overflow grooves 350 extend axially along the upper part of the side of the outer overflow pipe 340 to the lowest end position. Three inner overflow grooves 320 are arranged on the side of the inner overflow pipe 310, and the three inner overflow grooves 320 connect the inner cavity of the outer overflow pipe 340 with the inner cavity of the inner overflow pipe 310. The three inner overflow grooves 320 are evenly distributed along the circumferential direction. The inner overflow grooves 320 radially extend from the upper end face of the inner overflow pipe 310 to the outer edge, and then extend axially from the outer edge of the upper end face of the inner overflow pipe 310 to the lowest end position.

[0034] like Figure 5 and Figure 6 As shown, the lower end of the inner overflow pipe 310 is connected to the inner tube seat 330 of the cylindrical structure, and three protruding positioning strips 331 are vertically arranged on the inner side wall of the inner tube seat 330, and the three positioning strips 331 are evenly distributed along the circumferential direction. The lower end of the outer overflow pipe 340 is connected to the outer tube seat 360 of the cylindrical structure, and three positioning grooves 361 are vertically arranged on the side wall of the outer tube seat 360, and the three positioning grooves 361 are evenly distributed along the circumferential direction. The inner tube seat 330 is clamped on the inner ring of the outer tube seat 360, and the outer side wall of the inner tube seat 330 and the inner side wall of the outer tube seat 360 are interference fit, and the three positioning strips 331 are correspondingly inserted into the three positioning grooves 361, so as to realize the positioning installation of the inner tube seat 330 in the outer tube seat 360.

[0035] like Figure 3 As shown, the center of the lower end of the inner tube seat 330 is connected to the liquid outlet joint 400, the liquid outlet joint 400 and the inner tube seat 330 are integrally formed, the liquid outlet joint 400 is connected to the inner cavity of the inner overflow tube 310, and the liquid in the inner cavity of the inner overflow tube 310 flows out through the liquid outlet joint 400.

[0036] During infusion, the liquid medicine in the puncture device 100 drips onto the upper end surface of the outer overflow tube 340, and then flows to the bottom position along the outer surface of the outer overflow tube 340. Due to the surface tension of the liquid, the liquid medicine will gather in the side space of the outer overflow tube 340. When the liquid medicine gathers to a certain height, the hydraulic pressure of the liquid medicine breaks through the surface tension and enters the inner cavity of the outer overflow tube 340 along the outer overflow groove 350. Then, due to the surface tension of the liquid, the liquid medicine will gather in the space around the inner overflow tube 310. When the liquid medicine gathers to a certain height, the hydraulic pressure of the liquid medicine breaks through the surface tension and enters the inner cavity of the inner overflow tube 310 along the inner overflow groove 320, and then is discharged through the liquid outlet connector 400. After the liquid medicine in the medicine bottle is infused, due to the surface tension of the liquid and the capillary phenomenon, the liquid will maintain a certain height in the overflow structure 300, and there is no need to discharge the air in the tube when changing the medicine again. The utility model realizes automatic exhaust by arranging an overflow structure, and allows the infused medicine liquid to maintain a certain infusion height, reduces the mixing of bubbles in the infusion liquid, and ensures the normal progress of the infusion.

[0037] like Figure 7 and Figure 8 In the second embodiment shown, the overflow infusion puncture assembly mainly includes a puncture 100, a dropper 200 and an overflow structure 300. The upper end of the dropper 200 is clamped with the puncture 100, and the lower end of the inner cavity of the dropper 200 is clamped with the overflow structure 300. The outer ring of the overflow structure 300 and the inner cavity of the dropper 200 are interference fit. A liquid outlet connector 400 is provided at the liquid outlet end of the overflow structure 300, and the liquid outlet connector 400 and the dropper 200 are integrally formed.

[0038] like Figure 8As shown, the overflow structure 300 includes an outer overflow pipe 340 with a cylindrical structure and a hollow interior, an inner overflow pipe 310 with a cylindrical structure and a hollow interior is arranged at the center position of the outer overflow pipe 340, and three outer overflow grooves 350 are arranged on the side of the outer overflow pipe 340. The three outer overflow grooves 350 connect the outside of the outer overflow pipe 340 with the inner cavity of the outer overflow pipe 340. The three outer overflow grooves 350 are equidistantly distributed along the circumferential direction, and the outer overflow grooves 350 extend axially along the upper part of the side of the outer overflow pipe 340 to the lowest end position. Three inner overflow grooves 320 are arranged on the side of the inner overflow pipe 310, and the three inner overflow grooves 320 connect the inner cavity of the outer overflow pipe 340 with the inner cavity of the inner overflow pipe 310. The three inner overflow grooves 320 are evenly distributed along the circumferential direction. The inner overflow grooves 320 radially extend from the upper end face of the inner overflow pipe 310 to the outer edge, and then extend axially from the outer edge of the upper end face of the inner overflow pipe 310 to the lowest end position.

[0039] like Fig. 9 and Fig.10 As shown, the lower end of the inner overflow pipe 310 is connected to the disc-shaped inner seat plate 370, and the lower end of the outer overflow pipe 340 is connected to the annular outer seat plate 380, and the inner seat plate 370 is embedded in the inner ring of the outer seat plate 380. A protruding seat plate positioning strip 381 is provided on the inner ring surface of the outer seat plate 380, and a recessed seat plate positioning groove 371 is provided on the outer ring surface of the inner seat plate 370. The seat plate positioning strip 381 is embedded in the seat plate positioning groove 371 to realize the positioning and installation of the inner seat plate 370 and the outer seat plate 380.

[0040] Compared with the first embodiment, the assembly of the overflow structure 300 at the lower end of the dropper 200 is more stable and has better sealing performance, thus avoiding the risk of leakage.

[0041] The working principle of the utility model is as follows: during infusion, the liquid medicine in the puncture device 100 drips onto the upper end surface of the outer overflow tube 340, and then converges to the bottom position along the outer surface of the outer overflow tube 340. Due to the surface tension of the liquid, the liquid medicine will gather in the side space of the outer overflow tube 340. When the liquid medicine gathers to a certain height, the hydraulic pressure of the liquid medicine breaks through the surface tension and enters the inner cavity of the outer overflow tube 340 along the outer overflow groove 350. Then, due to the surface tension of the liquid, the liquid medicine will gather in the space around the inner overflow tube 310. When the liquid medicine gathers to a certain height, the hydraulic pressure of the liquid medicine breaks through the surface tension and enters the inner cavity of the inner overflow tube 310 along the inner overflow groove 320, and then is output through the liquid outlet joint 400. After the liquid medicine in the medicine bottle is infused, due to the surface tension of the liquid and the capillary phenomenon, the liquid will maintain a certain height in the overflow structure 300, and there is no need to discharge the air in the tube when changing the medicine again. The utility model realizes automatic exhaust by arranging an overflow structure, and allows the infused medicine liquid to maintain a certain infusion height, reduces the mixing of bubbles in the infusion liquid, and ensures the normal progress of the infusion.

[0042] The above description is an explanation of the utility model, not a limitation of the utility model. The scope of the utility model is defined by the claims. Any form of modification can be made within the protection scope of the utility model.

Claims

1. An overflow infusion puncture assembly, comprising a puncture (100), a dropper (200) and an overflow structure (300), characterized in that: The upper end of the dropper (200) is clamped with the puncture device (100), and the lower end of the dropper (200) is clamped with the overflow structure (300). The liquid outlet end of the overflow structure (300) is provided with a liquid outlet joint (400); the overflow structure (300) comprises an external overflow pipe (340), an internal overflow pipe (310) is provided at the center position inside the external overflow pipe (340), a plurality of external overflow grooves (350) are provided on the side of the external overflow pipe (340), and the plurality of external overflow grooves (350) connect the outside of the external overflow pipe (340) with the inner cavity of the external overflow pipe (340), and a plurality of internal overflow grooves (320) are provided on the side of the internal overflow pipe (310), and the plurality of internal overflow grooves (320) connect the inner cavity of the external overflow pipe (340) with the inner cavity of the internal overflow pipe (310).

2. An overflow infusion puncture assembly according to claim 1, characterized in that: The outer overflow pipe (340) and the inner overflow pipe (310) are cylindrical structures; the outer overflow groove (350) extends axially along the upper part of the side surface of the outer overflow pipe (340) to the lowest position; the inner overflow groove (320) extends radially from the upper end surface of the inner overflow pipe (310) to the outer edge, and then extends axially from the outer edge of the upper end surface of the inner overflow pipe (310) to the lowest position.

3. An overflow infusion puncture assembly as claimed in claim 2, characterized in that: The lower end of the inner overflow pipe (310) is connected to an inner tube seat (330) of a cylindrical structure, and the lower end of the outer overflow pipe (340) is connected to an outer tube seat (360) of a cylindrical structure; the inner tube seat (330) is clamped on the inner ring of the outer tube seat (360), and the outer wall of the inner tube seat (330) and the inner wall of the outer tube seat (360) are interference fit.

4. An overflow infusion puncture assembly as claimed in claim 3, characterized in that: A plurality of protruding positioning strips (331) are vertically arranged on the inner side wall of the inner tube seat (330), a plurality of positioning grooves (361) are vertically arranged on the side wall of the outer tube seat (360), and the plurality of positioning strips (331) are correspondingly inserted into the plurality of positioning grooves (361).

5. An overflow infusion puncture assembly as claimed in claim 4, characterized in that: The center of the lower end of the inner tube seat (330) is connected to the liquid outlet joint (400), the liquid outlet joint (400) and the inner tube seat (330) are integrally formed, and the liquid outlet joint (400) is connected to the inner cavity of the inner overflow pipe (310).

6. An overflow infusion puncture set as claimed in claim 2, characterized in that: The overflow structure (300) is clamped on the lower end of the inner cavity of the dropper (200), and the outer ring of the overflow structure (300) and the inner cavity of the dropper (200) are interference fit.

7. An overflow infusion puncture assembly according to claim 6, characterized in that: The lower end of the inner overflow pipe (310) is connected to a disc-shaped inner seat plate (370), the lower end of the outer overflow pipe (340) is connected to a ring-shaped outer seat plate (380), and the inner seat plate (370) is embedded in the inner ring of the outer seat plate (380).

8. An overflow infusion puncture assembly according to claim 7, characterized in that: The inner ring surface of the outer seat plate (380) is provided with a protruding seat plate positioning strip (381), the outer ring surface of the inner seat plate (370) is provided with a recessed seat plate positioning groove (371), and the seat plate positioning strip (381) is embedded in the seat plate positioning groove (371).

9. An overflow infusion puncture assembly according to any one of claims 1 to 8, characterized in that: The puncture device (100) comprises a needle seat (110), a puncture needle (120) is arranged at the center position of the upper end of the needle seat (110), an infusion channel (121) is arranged axially inside the puncture needle (120), a dripping mouth (150) is arranged at the center position of the lower end of the needle seat (110), the dripping mouth (150) and the infusion channel (121) are connected, an air inlet channel (122) is arranged axially inside the puncture needle (120), an air inlet (130) is arranged on the side of the needle seat (110), the air inlet (130) and the air inlet channel (122) are connected, a detachable air plug (140) is connected to the air inlet (130), and the air plug (140) can close or open the air inlet (130), and a clamping groove (160) is arranged on the outer ring of the lower end of the needle seat (110), and the clamping groove (160) and the upper end of the dropper (200) are clamped.

10. An overflow infusion puncture assembly according to claim 9, characterized in that: The air plug (140) comprises an integrally formed mounting portion (141) and a sealing portion (142); the mounting portion (141) is detachably connected to the air inlet (130); an opening communicating with the air inlet (130) is provided on the mounting portion (141); one side of the mounting portion (141) is connected to the sealing portion (142); and the sealing portion (142) is capable of sealing the opening of the mounting portion (141).

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