A portable medicine adding device suitable for intraoperative medicine adding

Abstract

This invention provides a portable medication administration device suitable for intraoperative drug administration, relating to the field of infusion tubing technology, including a three-way valve, a syringe, and a sealing assembly. In this portable medication administration device, the syringe needle penetrates the top cover and is inserted into the connecting tube, leaving only a tiny needle hole on the top cover. Medication flows out from the connecting tube, through the three-way valve, and into the infusion tubing. When replacing the syringe with a new one, the push rods in air cylinders one and two are pressed, pushing gas into the sealed cavity formed between the end plate, the diaphragm, the top cover, and the first and second infusion ports. This increases the pressure within the sealed cavity, causing the ribs on the sealing component to be compressed and converge towards the center. The diaphragm, supported by the ribs, also converges. The top cover is subjected to inward pressure from all sides, deforming towards the center to seal the needle hole. This achieves elastic reset and closure after needle removal, preventing direct communication between the inside of the three-way valve and the external environment, thus preventing contamination of the medication in the infusion tubing.

Description

Technical Field

[0001] This utility model relates to the field of infusion tubing technology, and in particular to a portable medication administration device suitable for intraoperative medication administration. Background Technology

[0002] In anesthesia management, anesthesiologists need to precisely adjust the type and dosage of medications based on the patient's specific condition to maintain stable vital signs. Commonly used medications during anesthesia include anesthetics, analgesics, and muscle relaxants. Some of these medications require continuous infusion to maintain their effect, while others need to be administered in divided doses based on the patient's real-time response. For example, continuous infusion of anesthetics is used to maintain the anesthetic state, while the use of analgesics may need to be divided into doses to ensure patient comfort and safety.

[0003] To precisely control drug administration, anesthesiologists typically use intravenous tubing and syringes. The tubing delivers the medication from the syringe into the patient, while the syringe precisely measures the dosage. However, in practice, traditional medication delivery systems often have problems, particularly regarding the seal when injecting medication from the syringe into the tubing. If the connection between the tubing and syringe is not airtight, bacteria, fungi, or other pathogens from the air can enter the tubing, contaminating the medication and the tubing itself. These pathogens can then enter the patient's body through the bloodstream, increasing the risk of infection. Utility Model Content

[0004] This invention provides a portable medication administration device suitable for intraoperative medication administration, solving the problem of poor sealing at the connection between the infusion tube and the syringe mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a portable drug delivery device suitable for intraoperative drug delivery, comprising a three-way valve, a syringe, and a sealing assembly. The three-way valve has a drug delivery port 1 and a drug delivery port 2 on its two valve ports, each equipped with a syringe. The other valve port of the three-way valve has a drug outlet. The sealing assembly is located inside both drug delivery port 1 and drug delivery port 2. The sealing assembly includes a connecting tube and a sealing element. The sealing element is located at one end of the connecting tube and includes ribs, a diaphragm, and a top cover. Multiple ribs... The ribs are arranged equidistantly in a circular pattern on the connecting pipe head. The ribs are rotatably connected to the connecting pipe head. A cover is provided between every two ribs. Multiple covers and multiple ribs surround a closed conical surface. A top cover is provided on the free end of multiple ribs. The top cover is sealed to all the covers. The diameter of the top cover is smaller than the diameter of the connecting pipe head. An end plate is provided at one end of the sealing assembly. A sealed cavity is formed between the end plate, the covers, the top cover and the first infusion port. A sealed cavity is also formed between the end plate, the covers, the top cover and the second infusion port.

[0006] Preferably, a plurality of support rods are provided between the end plate and the connecting pipe head, and the two ends of the plurality of support rods are respectively fixed to the end plate and the connecting pipe head.

[0007] Preferably, an outer ring is fixedly connected to the top cover surface, an inner ring is fixedly connected to the inside of the outer ring, and a connecting pipe is fixedly connected to the end face of the end plate, the connecting pipe being inserted into the gap between the outer ring and the inner ring.

[0008] Preferably, the inner wall diameter of the connecting pipe is larger than the outer wall diameter of the inner ring, and the outer wall diameter of the connecting pipe is smaller than the inner wall diameter of the outer ring.

[0009] Preferably, an air cylinder is provided on the side wall of the sealed cavity position in the first infusion port, and an air cylinder is provided on the side wall of the sealed cavity position in the second infusion port. The first air cylinder is connected to the first infusion port, and the second air cylinder is connected to the second infusion port. Both the first air cylinder and the second air cylinder have a push rod slidably connected inside.

[0010] Preferably, both the first and second drug delivery ports are provided with a fixed outer tube, and an inner extension tube is fixedly connected inside the fixed outer tube. An annular groove is provided between the inner extension tube and the fixed outer tube, and the walls of both the first and second drug delivery ports are engaged in the annular groove.

[0011] Preferably, the connecting tube head is fixed on the inner extension tube.

[0012] Preferably, the inner tube has multiple alignment ports at its opening.

[0013] Preferably, the syringe is provided with an injection head at its end, and a plurality of alignment plates are provided on the conical surface of the injection head, with the plurality of alignment plates corresponding to the plurality of alignment ports.

[0014] Preferably, one end of the drug outlet is fixedly connected to an infusion tube.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] When the syringe containing the medication is inserted into either infusion port one or infusion port two, the syringe needle protrudes from the top cover and enters the connecting tube, leaving only a tiny needle hole on the top cover. The medication flows out from the connecting tube, through the three-way valve, and into the infusion tubing. When replacing the syringe with a new one, press the push rods in air cylinder one and air cylinder two respectively to push gas into the sealed cavity formed between the end plate, the diaphragm, the top cover, and infusion ports one and two. This increases the pressure in the sealed cavity, causing the ribs on the sealing component to be compressed and converge towards the center. The diaphragm, supported by the ribs, also converges. The top cover is subjected to inward pressure from all sides, deforming towards the center to seal the needle hole. This achieves elastic reset and closure after needle removal, preventing direct communication between the inside of the three-way valve and the external environment, thus preventing contamination of the medication in the infusion tubing. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the portable drug delivery device for intraoperative drug delivery according to the present invention;

[0018] Figure 2 This is a schematic diagram of the three-way valve structure of this utility model;

[0019] Figure 3 This is a structural diagram showing the installation position of the sealing component of this utility model;

[0020] Figure 4 This is a schematic diagram of the sealing component structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the connection and mating structure between the sealing component and the end plate of this utility model;

[0022] Figure 6 This is a schematic diagram of the alignment tube inserted between the inner and outer rings of this utility model;

[0023] Figure 7 for Figure 6 Enlarged view of point A;

[0024] Figure 8 This is a schematic diagram of the connection and cooperation between the fixed outer tube and the inner extension tube of this utility model;

[0025] Figure 9 This is a schematic diagram of the alignment plate installation position structure of this utility model.

[0026] Numbered in the diagram: 1. Three-way valve; 11. Infusion port one; 111. Air cylinder one; 12. Infusion port two; 121. Air cylinder two; 13. Outlet; 2. Syringe; 21. Injection head; 22. Alignment plate; 3. Push rod; 4. Fixed outer tube; 41. Inner extension tube; 42. Annular groove; 43. Alignment port; 5. Sealing assembly; 51. Connecting tube head; 52. Sealing component; 521. Rib; 522. Diaphragm; 523. Top cover surface; 5231. Outer ring; 5232. Inner ring; 6. End plate; 61. Support rod; 62. Connecting tube; 7. Infusion tube. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0028] This invention provides a portable drug delivery device suitable for intraoperative drug administration, such as... Figure 1 and Figure 2 As shown, the device includes a three-way valve 1, a syringe 2, and a sealing assembly 5. The three-way valve 1 has two ports, one for drug delivery (11) and one for drug delivery (12), each equipped with a syringe 2. The other port of the three-way valve 1 has a drug outlet (13). This dual-port configuration allows for the simultaneous connection of two different drug syringes 2 without the need to change ports during surgery. It also avoids cross-contamination of drugs and meets the needs of multi-drug injection sequences. Figure 3 As shown, both infusion ports 11 and 12 are equipped with sealing components 5, and one end of the outlet 13 is fixedly connected to an infusion tube 7. The medication is injected into the three-way valve 1 through the syringe 2 via infusion ports 11 and 12, and then discharged through the outlet 13 into the infusion tube 7, flowing into the patient's body.

[0029] like Figure 4 and Figure 5As shown, the sealing assembly 5 includes a connecting pipe head 51 and a sealing element 52. The sealing element 52 is disposed at one end of the connecting pipe head 51 and includes ribs 521, a cover 522, and a top cover 523. Multiple ribs 521 are equidistantly arranged circumferentially on the connecting pipe head 51. The ribs 521 and the connecting pipe head 51 are rotatably connected. A cover 522 is disposed between every two ribs 521. Multiple covers 522 and multiple ribs 521 surround to form a closed conical surface. A top cover 523 is disposed on the free end of multiple ribs 521. The top cover 523 is sealed to all covers 522. The diameter of the top cover 523 is smaller than the diameter of the connecting pipe head 51. When the syringe 2 containing the medicine is inserted into the infusion port 11 or the infusion port 12, the needle of the syringe 2 will pierce the top cover surface 523. Only tiny needle holes will be left on the top cover surface 523 to prevent air or microorganisms from flowing in.

[0030] like Figure 5 and Figure 6 As shown, one end of the sealing assembly 5 is provided with an end plate 6. A sealed cavity is formed between the end plate 6, the cover 522, the top cover 523, and the first infusion port 11. A sealed cavity is also formed between the end plate 6, the cover 522, the top cover 523, and the second infusion port 12. Multiple support rods 61 are provided between the end plate 6 and the connecting pipe head 51, with both ends of the support rods 61 fixed to the end plate 6 and the connecting pipe head 51, respectively. Figure 2 As shown, an air cylinder 111 is installed on the side wall of the sealed cavity in the first inlet 11, and an air cylinder 121 is installed on the side wall of the sealed cavity in the second inlet 12. The first air cylinder 111 is connected to the first inlet 11, and the second air cylinder 121 is connected to the second inlet 12. Both the first air cylinder 111 and the second air cylinder 121 are slidably connected to a push rod 3. When replacing syringe 2 with a new syringe 2, press the push rod 3 in air cylinder 111 and air cylinder 221 respectively to push gas into the sealed cavity formed between end plate 6, cover 522, top cover 523 and infusion port 11 and infusion port 22. This increases the pressure in the sealed cavity, causing the ribs 521 on the sealing component 52 to be compressed and converge towards the center. The cover 522 is also compressed by the ribs 521. The top cover 523 is subjected to inward pressure from all sides and is squeezed and deformed towards the center to seal the needle hole. This achieves elastic reset and closure after needle removal, preventing the inside of the three-way valve 1 from being directly connected to the external environment and causing contamination of the medicine in the infusion tube 7.

[0031] like Figure 7As shown, an outer ring 5231 is fixedly connected to the top cover surface 523, and an inner ring 5232 is fixedly connected inside the outer ring 5231. A connecting pipe 62 is fixedly connected to the end face of the end plate 6, and the connecting pipe 62 is inserted into the gap between the outer ring 5231 and the inner ring 5232. The inner wall diameter of the connecting pipe 62 is larger than the outer wall diameter of the inner ring 5232, and the outer wall diameter of the connecting pipe 62 is smaller than the inner wall diameter of the outer ring 5231, providing a margin for movement for the inward deformation of the top cover surface 523. The connecting pipe 62 and the top cover surface 523 are designed with a ring groove nesting, and the outer ring 5231 and the inner ring 5232 cooperate with the connecting pipe 62 to achieve radial and axial sealing. The needle of the syringe 2 passes through the top cover surface 523 and is inserted into the connecting pipe 6. The medicine flows out from the connecting pipe 6, passes through the three-way valve 1, and flows into the infusion tube 7.

[0032] like Figure 8 As shown, both infusion port 11 and infusion port 2 are equipped with a fixed outer tube 4. An inner extension tube 41 is fixedly connected inside the fixed outer tube 4, and a connecting tube head 51 is fixed to the inner extension tube 41. An annular groove 42 is provided between the inner extension tube 41 and the fixed outer tube 4, and the tube walls of both infusion port 11 and infusion port 2 are engaged in the annular groove 42.

[0033] like Figure 9 As shown, the inner tube 41 has multiple alignment ports 43 at its opening. The syringe 2 has an injection head 21 at its end, and multiple alignment plates 22 are arranged on the conical surface of the injection head 21. These alignment plates 22 correspond to the multiple alignment ports 43. The alignment plates 22 and alignment ports 43 provide forced guidance, ensuring the syringe 2 is inserted in the correct position.

[0034] Using this utility model, such as Figure 1 and Figure 2 As shown, when the syringe 2 containing the medicine is inserted into the infusion port 11 or the infusion port 12, the needle of the syringe 2 passes through the top cover surface 523 and is inserted into the connecting tube 6. Only a tiny needle hole is left on the top cover surface 523. The medicine flows out from the connecting tube 6 and flows into the infusion tube 7 through the three-way valve 1. When replacing syringe 2 with a new syringe 2, press the push rod 3 in air cylinder 111 and air cylinder 221 respectively to push gas into the sealed cavity formed between end plate 6, cover 522, top cover 523 and infusion port 11 and infusion port 22. This increases the pressure in the sealed cavity, causing the ribs 521 on the sealing component 52 to be compressed and converge towards the center. The cover 522 is also compressed by the ribs 521. The top cover 523 is subjected to inward pressure from all sides and is squeezed and deformed towards the center to seal the needle hole. This achieves elastic reset and closure after needle removal, preventing the inside of the three-way valve 1 from being directly connected to the external environment and causing contamination of the medicine in the infusion tube 7.

[0035] Although the embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for this utility model. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A portable drug delivery device suitable for intraoperative drug delivery, characterized in that The device includes a three-way valve (1), a syringe (2), and a sealing assembly (5). The three-way valve (1) has a first infusion port (11) and a second infusion port (12) on its two valve ports, each equipped with a syringe (2). The other valve port of the three-way valve (1) has a discharge port (13). The sealing assembly (5) is installed inside both the first infusion port (11) and the second infusion port (12). The sealing assembly (5) includes a connecting tube head (51) and a sealing element (52). The sealing element (52) is located at one end of the connecting tube head (51) and includes ribs (521), a diaphragm (522), and a top cover (523). Multiple ribs (521) are equidistantly arranged circumferentially on the connecting tube head (51). 521) is rotatably connected to the connecting tube head (51). A cover (522) is provided between every two ribs (521). Multiple covers (522) and multiple ribs (521) surround a closed conical surface. A top cover (523) is provided on the free end of multiple ribs (521). The top cover (523) is sealed to all the covers (522). The diameter of the top cover (523) is smaller than the diameter of the connecting tube head (51). An end plate (6) is provided at one end of the sealing assembly (5). A sealed cavity is formed between the end plate (6), the cover (522), the top cover (523) and the first infusion port (11). A sealed cavity is also formed between the end plate (6), the cover (522), the top cover (523) and the second infusion port (12).

2. The portable drug delivery device for intraoperative drug delivery according to claim 1, characterized in that, Multiple support rods (61) are provided between the end plate (6) and the connecting pipe head (51), and the two ends of the multiple support rods (61) are respectively fixed on the end plate (6) and the connecting pipe head (51).

3. The portable drug delivery device for intraoperative drug delivery according to claim 1, characterized in that, An outer ring (5231) is fixedly connected to the top cover surface (523), and an inner ring (5232) is fixedly connected inside the outer ring (5231). A connecting pipe (62) is fixedly connected to the end face of the end plate (6), and the connecting pipe (62) is inserted into the gap between the outer ring (5231) and the inner ring (5232).

4. The portable drug delivery device for intraoperative drug delivery according to claim 3, characterized in that, The inner wall diameter of the connecting pipe (62) is larger than the outer wall diameter of the inner ring (5232), and the outer wall diameter of the connecting pipe (62) is smaller than the inner wall diameter of the outer ring (5231).

5. The portable drug delivery device for intraoperative drug delivery according to claim 1, characterized in that, An air cylinder (111) is provided on the side wall of the sealed cavity in the first infusion port (11), and an air cylinder (121) is provided on the side wall of the sealed cavity in the second infusion port (12). The first air cylinder (111) is connected to the first infusion port (11), and the second air cylinder (121) is connected to the second infusion port (12). A push rod (3) is slidably connected inside both the first air cylinder (111) and the second air cylinder (121).

6. The portable drug delivery device for intraoperative drug delivery according to claim 1, characterized in that, Both the first infusion port (11) and the second infusion port (12) are provided with a fixed outer tube (4). An inner extension tube (41) is fixedly connected inside the fixed outer tube (4). An annular groove (42) is provided between the inner extension tube (41) and the fixed outer tube (4). The tube walls of the first infusion port (11) and the second infusion port (12) are both engaged in the annular groove (42).

7. The portable drug delivery device for intraoperative drug delivery according to claim 6, characterized in that, The connecting tube head (51) is fixed on the inner tube (41).

8. The portable drug delivery device for intraoperative drug delivery according to claim 6, characterized in that, The inner tube (41) has multiple alignment ports (43) at its opening.

9. The portable drug delivery device for intraoperative drug delivery according to claim 8, characterized in that, The syringe (2) is provided with an injection head (21) at its end. Multiple alignment plates (22) are provided on the conical surface of the injection head (21). The multiple alignment plates (22) correspond to the multiple alignment ports (43).

10. The portable drug delivery device for intraoperative drug delivery according to claim 1, characterized in that, One end of the medicine outlet (13) is fixedly connected to an infusion tube (7).

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