CN115025318A - an infusion set - Google Patents

Abstract

The invention discloses an infusion apparatus, relating to the technical field of medical apparatus and instruments, wherein a dosing extension tube is arranged above a drip cup of the infusion apparatus, the end of the drug adding extension tube is connected with a female joint which can be connected with a sealing cap or a drug adding joint, the joint body of the medicine adding joint is provided with at least one branch pipe, an inner sealing cover plate is arranged in a medicine adding port on the branch pipe, an outer sealing cover plate which is attached to the end face of the branch pipe is arranged outside the medicine feeding port, the inner sealing cover plate is formed by splicing a plurality of inner fan-shaped sealing plates, the arc surface of the inner sector sealing plate is connected with the inner wall of the medicine feeding port, the cover plate body of the outer sealing cover plate is formed by splicing a plurality of outer sector sealing plates, the outer sector sealing plates are connected with the corresponding inner sector sealing plates through corresponding pull ropes, and the outer sealing cover plate can drive all the inner sector sealing plates to be upturned to open the dosing port when being opened. The invention has the advantages of convenient and safe dosing and low cost.

Description

an infusion set

technical field

The invention relates to the technical field of medical devices, in particular to an infusion set.

Background technique

Disposable infusion set, a common medical consumable, is aseptically processed to establish a channel between the vein and the medicinal liquid for intravenous infusion. Disposable infusion sets are generally composed of eight parts connected by intravenous needles or injection needles, needle caps, infusion hoses, liquid medicine filters, flow rate regulators, drip pots, cork punctures, and air filters. There are also injection parts, dosing ports, etc. The traditional dosing position is at the upper end of the drip pot, where there is a dosing port, which is sealed with a latex cap, and a syringe needle must be used for each injection. The disadvantages of adding medicines are: first, it does not conform to the concept of sterility, the cap is exposed to the air, and is not routinely sterilized every time the medicine is injected; second, it is easy to cause medical staff to be injured by needle sticks; An infusion set connected with a needle-free closed infusion connector of Clifford for dosing is used, but the unit price of the Clifford connector is expensive, which greatly increases the cost of treatment for patients.

SUMMARY OF THE INVENTION

In view of this, the present invention provides an infusion set to solve the above technical problems.

To achieve the above object, the present invention provides the following technical solutions:

An infusion set, the dripping pot of the infusion set is provided with a medicine dosing extension tube, the end of the medicine dosing extension tube is connected with a female connector, the female connector can be connected with a sealing cap or a dosing connector, and the There is at least one branch pipe on the joint body of the medicine joint, an inner sealing cover plate is arranged in the medicine feeding port on the branch pipe, and an outer sealing cover which is fitted with the end face of the branch pipe is arranged outside the medicine feeding port The inner sealing cover plate is formed by splicing a plurality of inner fan-shaped sealing plates, and the arc surface of the inner fan-shaped sealing plate is connected with the inner wall of the dosing port, and the cover plate body of the outer sealing cover plate is composed of A plurality of outer fan-shaped sealing plates are assembled to form, and the outer fan-shaped sealing plates are connected with the corresponding inner fan-shaped sealing plates through corresponding pull ropes. When the outer sealing cover plate is opened, it can drive all the inner fan-shaped sealing plates to turn over. The dosing port is opened.

Further, a connecting arm is connected on the outer fan-shaped sealing plate, and the connecting arm is fixedly connected with the outer peripheral surface of the joint body.

Further, the inner side surface of the outer fan-shaped sealing plate is provided with a pressing arm capable of abutting against the top surface of the inner sealing cover plate.

Further, a guide sleeve is arranged in the medicine dosing port, a gap is formed between the guide sleeve and the inner wall of the dosing port, and the inner sealing cover is in contact with the outer end surface of the guide sleeve when reset.

Furthermore, a driving carriage is provided on the branch pipe, and the driving carriage is used to drive the connecting arm to deflect outwards, thereby driving the corresponding outer fan-shaped sealing plate to turn over.

Further, the driving carriage includes a driving ring sleeved on the branch pipe, the driving ring abuts on the inner guiding inclined surface of the connecting arm, and the outer ring surface of the driving ring is provided with a plurality of Each of the bosses is alternately distributed with the connecting arms.

Further, the branch pipe is provided with a ring groove, and the locking snap ring detachably connected with the ring groove can lock the position of the driving carriage arranged on the same branch pipe to make the dosing. The mouth remains open.

Further, the locking snap ring includes a C-shaped ring and at least two snap arms connected to the C-shaped ring, and the snap arms act on the corresponding bosses.

Further, the joint body has a connecting portion that is matched and connected with the internal thread of the female joint.

It can be seen from the above technical solutions that the present invention has the advantages of convenient and safe dosing and low cost.

In addition to the objects, features and advantages described above, the present invention has other objects, features and advantages. The present invention will be described in further detail below with reference to the drawings.

Description of drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of the present invention.

FIG. 2 is another structural schematic diagram of the present invention.

FIG. 3 is a schematic structural diagram of the dosing connector of the present invention when it is not in use.

FIG. 4 is a schematic structural diagram of the dosing connector of the present invention in a use state.

FIG. 5 is a top view of FIG. 3 of the present invention.

Fig. 6 is another structural schematic diagram of the dosing joint of the present invention.

FIG. 7 is a schematic structural diagram of the locking snap ring of the dosing joint of the present invention.

List of reference numerals: infusion set 1, dosing extension tube 2, female connector 3, sealing cap 4, dosing connector 5, joint body 51, connecting part 511, dosing port 512, guide sleeve 513, ring groove 514, inner Sealing cover plate 52, inner fan-shaped sealing plate 521, outer sealing cover plate 53, outer fan-shaped sealing plate 531, connecting arm 532, pressing arm 533, pulling rope 54, driving carriage 55, driving ring 551, boss 552, locking card Ring 56 , C-ring 561 , clamping arm 562 .

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

The application will be further described with reference to FIGS. 1 to 7 . As shown in FIG. 1 and FIG. 2 , an infusion set is provided above the dripping pot of the infusion set 1 with a dosing extension tube 2 . The end is connected with a female connector 3, which can be connected with the sealing cap 4 or the dosing connector 5. When the dosing function is not used, the female connector 3 is connected with the sealing cap 4. When the dosing function is used, the female connector 3 is connected with the sealing cap 4. When functioning, the female connector 3 is connected to the dosing connector 5 .

Specifically, the medicine dosing extension tube 2 and the infusion set 1 are integrally made or formed by connecting a tee joint and an external pipe, the sealing cap 4 is connected with the external thread of the female joint 3, and the medicine dosing The joint 5 is connected with the inner thread of the female joint 3, and the female joint 3 can also be connected with other extension pipes to form an extra-long extended dosing pipe, which is convenient to use.

As shown in FIGS. 2 , 3 , 4 and 6 , the joint body 51 of the dosing joint 5 has a connecting portion 511 and at least one branch pipe that is matched with the female joint 3 , and is located in the The medicine feeding port 512 on the branch pipe is provided with an inner sealing cover plate 52, and the medicine feeding port 512 is provided with an outer sealing cover plate 53 that fits with the end face of the branch pipe. The inner sealing cover plate 52 It is formed by splicing a plurality of inner fan-shaped sealing plates 521, and the arc surface of the inner fan-shaped sealing plate 521 is connected with the inner wall of the dosing port 512, and the cover body of the outer sealing cover plate 53 is composed of a plurality of outer fan-shaped sealing plates. The sealing plates 531 are assembled and formed. The outer fan-shaped sealing plates 531 are connected with the corresponding inner fan-shaped sealing plates 521 through the corresponding pull ropes 54. When the outer sealing cover plate 53 is opened, it can drive all the inner fan-shaped sealing plates 521. Turning upwards opens the dosing port 512, thereby exposing the dosing channel, and the injection end of the syringe without the injection needle is directly inserted into the dosing channel for dosing, which is safe to use. The inner sealing cover plate 52 and the outer sealing cover plate 53 realize double-layer sealing, so that the sealing effect of the dosing port 512 is good, and since the outer surface of the outer sealing cover plate 53 will not be in contact with the syringe, Therefore, repeated disinfection is not required before adding medicine, which makes adding medicine convenient.

Preferably, the cover body of the outer sealing cover plate 53 is formed by splicing four outer fan-shaped sealing plates 531 .

Preferably in the present application, the diameter of the drug feeding port 512 is larger than the diameter of the drug feeding channel, so that the outer sealing cover plate 53 and the inner sealing cover plate 52 have large structures and are easy to manufacture.

Preferably, the joint body 51 is provided with one or two branch pipes, which can meet the requirements of single-port dosing or dual-port dosing at the same time, and is convenient to use.

As shown in FIG. 3 and FIG. 4 , a connecting arm 532 is connected to the outer fan-shaped sealing plate 531 , and the connecting arm 532 is fixedly connected to the outer peripheral surface of the joint body 51 .

Specifically, an axially extending connecting arm 532 is connected to the outer arc surface of the outer fan-shaped sealing plate 531 , and the outer fan-shaped sealing plate 531 is made of a relatively hard material that is not easily deformed.

The inner side surface of the outer fan-shaped sealing plate 531 is provided with a pressing arm 533 that can abut against the top surface of the inner sealing cover plate 52 .

Specifically, the pull cord 54 is connected to the outer fan-shaped sealing plate 531 through the connection with the pressing arm 533. Since the inner sealing cover 52 is in an upturned state when deformed, the The pressing arm 533 can quickly reset the inner sealing cover plate 52 and restore it to be flat, so that the inner sealing cover plate 52 has good sealing performance.

A guide sleeve 513 is arranged in the medicine feeding port 512, and there is a gap between the guide sleeve 513 and the inner wall of the medicine feeding port 512. When the inner sealing cover 52 is reset, it is connected to the outer end surface of the guide sleeve 513. fit.

Specifically, the inner diameter of the guide sleeve 513 is the same as the inner diameter of the infusion channel, the guide sleeve 513 is matched with the injection end of the syringe, and the guide sleeve 513 can be deformed to a certain extent during the insertion of the syringe, thereby tightening It is tightly wrapped on the syringe to form a seal, so that the medicinal liquid is not easy to leak out and the medicine is added reliably.

As shown in FIG. 4 and FIG. 5 , the branch pipe is provided with a driving carriage 55 , and the driving carriage 55 is used to drive the connecting arm 532 to deflect outward, thereby driving the corresponding outer fan-shaped sealing plate 531 flip. After the outer fan-shaped sealing plate 531 is turned over, the corresponding inner fan-shaped sealing plate 521 will be turned upward.

Specifically, the driving carriage 55 includes a driving ring 551 sleeved on the branch pipe, the driving ring 551 abuts on the inner guide slope of the connecting arm 532 , and the outer ring surface of the driving ring 551 There are a plurality of bosses 552 , the bosses 552 and the connecting arms 532 are alternately distributed, and the bosses 552 are higher than the connecting arms 532 . When finger moves the boss 552 to move the drive ring 551, the connecting arm 532 is deflected to the outside, which in turn drives the corresponding outer fan-shaped sealing plate 531 to turn over. form an escape channel.

The branch pipe is provided with a ring groove 514, and the locking snap ring 56 detachably engaged with the ring groove 514 can lock the position of the driving carriage 55 arranged on the same branch pipe to make the dosing. Port 512 remains open. When the dosing port 512 needs to be kept open for a long time, the locking snap ring 56 is used to prevent the outer fan-shaped sealing plate 531 and the inner fan-shaped sealing plate 521 from pressing on the syringe for a long time and deforming the position of the fan-shaped tip It is not conducive to the use of reset sealing.

Specifically, the locking snap ring 56 includes a C-shaped ring 561 and at least two locking arms 562 connected to the C-shaped ring 561 , and the locking arms 562 act on the corresponding bosses 552 . Since the locking snap ring 56 acts on the boss 552 and will not affect the safety of dosing, the setting of the C-shaped ring 561 enables the locking snap ring 56 to be connected with different joint bodies 51 , saving energy resource.

The latching arm 562 is in an inverted L shape, and the latching arm 562 is hooked and connected with the corresponding boss 552 , so that the structure is simple and the latching is reliable.

Preferably, the locking snap ring 56 has three snap arms 562 , wherein at least two snap arms 562 act on the boss 552 .

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims (9)

1. A transfusion device is characterized in that a medicine adding extension pipe (2) is arranged above a drip cup of the transfusion device (1), the end of the medicine adding extension pipe (2) is connected with a female joint (3), the female joint (3) can be connected with a sealing cap (4) or a medicine adding joint (5), at least one branch pipe is arranged on a joint body (51) of the medicine adding joint (5), an inner sealing cover plate (52) is arranged in a medicine adding port (512) on the branch pipe, an outer sealing cover plate (53) attached to the end face of the branch pipe is arranged outside the medicine adding port (512), the inner sealing cover plate (52) is formed by splicing a plurality of inner fan-shaped sealing plates (521), the arc surface of each inner fan-shaped sealing plate (521) is connected with the inner wall of the medicine adding port (512), the cover plate body of each outer sealing cover plate (53) is formed by splicing a plurality of outer fan-shaped sealing plates (531), the outer fan-shaped sealing plates (531) are connected with the corresponding inner fan-shaped sealing plates (521) through corresponding pull ropes (54), and the outer sealing cover plates (53) can drive all the inner fan-shaped sealing plates (521) to be upturned to open the medicine adding openings (512).

2. The infusion set according to claim 1, wherein the outer sector sealing plate (531) is connected with a connecting arm (532), and the connecting arm (532) is fixedly connected with the outer peripheral surface of the connector body (51).

3. The infusion set according to claim 1, characterized in that the inner side of the outer sector sealing plate (531) is provided with a pressing arm (533) which can be abutted against the top surface of the inner sealing cover plate (52).

4. The infusion set according to claim 1, wherein a guide sleeve (513) is arranged in the dosing port (512), a gap is formed between the guide sleeve (513) and the inner wall of the dosing port (512), and the inner sealing cover plate (52) is attached to the outer end face of the guide sleeve (513) when being reset.

5. The infusion set according to claim 2, wherein the branch tube is provided with a driving carriage (55), and the driving carriage (55) is used for driving the connecting arm (532) to deflect outwards so as to drive the corresponding outer sector sealing plate (531) to turn over.

6. An infusion set according to claim 5, characterized in that the drive carriage (55) comprises a drive ring (551) fitted around the branch tube, the drive ring (551) abuts against the inner guiding slope of the linking arm (532), and a plurality of bosses (552) are provided on the outer circumferential surface of the drive ring (551), the bosses (552) alternating with the linking arm (532).

7. The infusion set according to claim 6, characterized in that the branch tube is provided with an annular groove (514), and a locking snap ring (56) detachably engaged with the annular groove (514) can lock the position of a driving carriage (55) arranged on the same branch tube to keep the medicine adding port (512) in an open state.

8. An infusion set according to claim 7, characterized in that the locking snap ring (56) comprises a C-shaped ring (561) and at least two snap arms (562) connected to the C-shaped ring (561), the snap arms (562) acting on the corresponding boss (552).

9. The infusion set according to claim 1, characterized in that the connector body (51) has a connection portion (511) for mating connection with the internal thread of the female connector (3).

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