Infusion port conduit connection auxiliary device

Abstract

The utility model discloses an infusion port conduit connection auxiliary device which comprises a clamping assembly, the clamping assembly comprises a first clamping piece and a second clamping piece, the first clamping piece is provided with a first connecting piece, the second clamping piece is provided with a second connecting piece, the first connecting piece is detachably connected with the second connecting piece, and the second connecting piece is detachably connected with the first clamping piece. The first clamping piece is provided with a first containing groove, the second clamping piece is provided with a second containing groove corresponding to the first containing groove, and the first containing groove and the second containing groove form a clamping hole for containing a guide pipe. According to the utility model, the phenomenon that the catheter slips due to the fact that the catheter or gauze is directly pinched by a hand in the process of connecting with a metal interface of an infusion port seat is effectively avoided.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to an auxiliary device for connecting infusion port catheters. Background Technology

[0002] An implantable venous access port (IVAP) is a completely implantable closed venous infusion system that can be used for long-term infusion of chemotherapy drugs, total parenteral nutrition, blood products, and blood sample collection. It can reduce the pain of repeated punctures, prevent damage to peripheral veins from high concentrations of drugs, and has advantages such as low complication rate, low maintenance, increased patient freedom of movement, and long-term indwelling. It is very practical for patients with advanced cancer who have difficulty with long-term infusions or venous punctures, especially those who need repeated chemotherapy. The surgical procedure for implanting an arm port-a-cath is as follows: 1. Mark the surgical incision and perform standard surgical disinfection; 2. Venous puncture: Insert a guidewire, confirm its placement in the superior vena cava, and withdraw the puncture needle; 3. Catheter placement: Slowly advance the catheter to the predetermined length and position the catheter tip under ultrasound guidance; 4. Pocket preparation: Ensure the surface is smooth and stable to facilitate fixation of the infusion seat and allow for easy insertion and infusion using a non-traumatic needle; 5. Subcutaneous tunneling: Create a subcutaneous tunnel connecting the pocket to the venipuncture site incision; 6. Connecting the port: Connect the catheter and the port-a-cath, and then implant the port-a-cath into the pocket; 7. Suturing and fixation: Suture the pocket incision, keeping the incision within one to two centimeters. For upper arm port-a-caths, the incision is 1cm–1.5cm. Currently, a technical challenge is encountered in step 6 when connecting the infusion port: After determining the catheter depth and trimming the catheter tip, it needs to be connected to the metal interface of the infusion port. During the procedure, bleeding occurs, so when connecting directly by hand, the catheter tip slips when held with gloves, making it difficult to push past the metal interface and fully rotate and insert it. Furthermore, the effort required may cause the catheter tip to become displaced or fall out of the hand into the subcutaneous tunnel. If the catheter falls into the subcutaneous tunnel, it may require the use of tweezers or other tools to pull it out, causing unnecessary harm to the patient. Clinically, gauze is currently used to wrap the catheter tip to increase friction and fully connect the catheter to the metal interface. However, using gauze obstructs part of the surgical field, hindering the procedure, and the wrapping process can easily cause the catheter to dislodge. Utility Model Content

[0003] The purpose of this invention is to provide an auxiliary device for connecting infusion port catheters to overcome the shortcomings of the prior art. It can effectively prevent the catheter from slipping off due to the hand directly pinching the catheter or gauze during the connection process with the metal interface of the infusion port, thereby improving the connection efficiency between the catheter and the metal interface of the port.

[0004] This utility model provides an auxiliary device for connecting infusion port catheters, including a clamping assembly. The clamping assembly includes a first clamping member and a second clamping member. The first clamping member is provided with a first connecting member, and the second clamping member is provided with a second connecting member. The first connecting member and the second connecting member are detachably connected. The first clamping member is provided with a first receiving groove, and the second clamping member is provided with a second receiving groove corresponding to the first receiving groove. The first receiving groove and the second receiving groove constitute a clamping hole for accommodating the catheter.

[0005] In the infusion port catheter connection auxiliary device described above, preferably, the first receiving groove is provided with a clamping tube with a C-shaped cross-section, and the opening on the side wall of the clamping tube is opposite to the first clamping member; the inner wall of the clamping tube is provided with a first rubber layer; the second receiving groove is provided with a clamping piece that matches the opening on the side wall of the clamping tube, and the side of the clamping piece near the catheter is provided with a second rubber layer.

[0006] In the above-described auxiliary device for connecting an infusion port catheter, preferably, the inner wall of one end of the clamping tube is provided with a first protrusion along the circumferential direction, the first rubber layer is provided with a first limiting groove adapted to the first protrusion, the clamping piece is provided with a third protrusion on the side near the second rubber layer, and the second rubber layer is provided with a second limiting groove that cooperates with the third protrusion; the first protrusion and the third protrusion cooperate to form an annular structure, and the first limiting groove and the second limiting groove cooperate to form an annular groove.

[0007] As described above, in a preferred embodiment, the first clamping member includes a first connecting part and a second connecting part, both of which are semi-cylindrical, and the center lines of the first connecting part and the second connecting part are located on the same straight line. The first receiving groove is arranged along the center line direction of the first connecting part and the second connecting part.

[0008] The second clamping member includes a third connecting part and a fourth connecting part, both of which are semi-cylindrical, and the center lines of the third connecting part and the fourth connecting part are on the same straight line. The second receiving groove is provided along the center line direction of the third connecting part and the fourth connecting part.

[0009] In the above-described auxiliary device for connecting infusion port catheters, preferably, the first connecting part and the third connecting part form a columnar structure, the second connecting part and the fourth connecting part form a columnar structure, and the peripheral side of the columnar structure formed by the first connecting part and the third connecting part is provided with anti-slip texture.

[0010] In the infusion port catheter connection auxiliary device described above, preferably, the first protrusion is disposed at the end of the clamping tube located at the second connection portion away from the first connection portion.

[0011] In the above-described auxiliary device for connecting an infusion port catheter, preferably, the first connector is a connecting post, which is fixedly disposed on the side of the second connecting portion near the fourth connecting portion, and there are two connecting posts, which are symmetrically disposed on both sides of the first receiving groove; the second connector is a mounting hole opened on the fourth connecting portion, and the mounting hole corresponds one-to-one with the connecting post.

[0012] The infusion port catheter connection auxiliary device described above preferably further includes a locking ring, which is sleeved on the columnar structure formed by the second connecting part and the fourth connecting part. The second connecting part has a first stop bar on its peripheral side, and the fourth connecting part has a second stop bar on its peripheral side. The first stop bar and the second stop bar form a retaining ring, and the locking ring abuts against the retaining ring.

[0013] In the above-described auxiliary device for connecting an infusion port catheter, preferably, the first stop bar and the second stop bar each have a guide surface at one end close to each other, and the guide surface on the first stop bar and the guide surface on the second stop bar form a finger receiving groove.

[0014] The infusion port catheter connection auxiliary device described above preferably further includes a V-clamp, the clamping assembly being fixedly disposed at one end of the V-clamp, and the other end of the V-clamp being provided with a mounting seat for fixing the infusion port seat, the infusion port seat being snapped into the mounting seat; when the V-clamp is engaged, the metal interface on the infusion port seat is aligned with the clamping hole.

[0015] Compared with the prior art, the present invention has the following advantages:

[0016] This invention uses a clamping component to clamp the catheter. When connecting the catheter to the metal interface of the infusion port, the clamping component can be squeezed by hand, which can effectively prevent the catheter from slipping off due to the hand directly squeezing the catheter or gauze during the connection with the metal interface of the infusion port, thus improving the connection efficiency between the catheter and the metal interface of the port. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of an auxiliary device for connecting a port-of-care catheter, as proposed in an embodiment of this utility model.

[0018] Figure 2 This is a schematic diagram of the structure of the first clamping component;

[0019] Figure 3This is a structural schematic diagram of the first clamping component from another perspective;

[0020] Figure 4 yes Figure 3 Enlarged view of point A in the middle;

[0021] Figure 5 This is a schematic diagram of the second clamping component;

[0022] Figure 6 yes Figure 5 Enlarged view of point B in the middle;

[0023] Figure 7 This is a schematic diagram of the locking ring structure;

[0024] Figure 8 This is a schematic diagram of the structure when the first clamping member and the second clamping member are engaged.

[0025] Figure 9 This is a schematic diagram of the structure when the clamping component is clamped onto the conduit;

[0026] Figure 10 This is a schematic diagram of the installation structure of the V-shaped clamp, mounting base, and clamping components.

[0027] Figure 11 This is a schematic diagram of the installation structure of the V-shaped clamp, mounting base, infusion port, clamping assembly, and catheter.

[0028] Explanation of reference numerals in the attached figures:

[0029] 1-First clamping component, 2-Second clamping component, 3-Clamping tube, 4-First rubber layer, 5-Clamping piece, 6-Conduit, 7-Second rubber layer, 8-Anti-slip texture, 9-Connecting post, 10-Mounting hole, 11-First connecting part, 12-Second connecting part, 13-Locking ring, 14-First stop bar, 15-Second stop bar, 16-Finger receiving groove, 17-V-clamp, 18-Infusion port seat, 19-Mounting base, 20-Metal connector 21-Third connecting part, 22-Fourth connecting part, 23-Conduit lock, 24-Clamping hole, 25-Third protrusion, 26-Second limiting groove, 27-Fourth protrusion, 28-Snap fastener, 30-Base, 31-First protrusion, 32-Card plate, 41-First limiting groove, 42-Second protrusion, 101-First receiving groove, 201-Second receiving groove, 281-First snap-fit, 282-Second snap-fit. Detailed Implementation

[0030] The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0031] Embodiments of this utility model:

[0032] like Figures 1-9 As shown, an auxiliary device for connecting a port-of-care catheter includes a clamping assembly. The clamping assembly includes a first clamping member 1 and a second clamping member 2. The first clamping member 1 is provided with a first connecting member, and the second clamping member 2 is provided with a second connecting member. The first connecting member and the second connecting member are detachably connected. The first clamping member 1 is provided with a first receiving groove 101, and the second clamping member 2 is provided with a second receiving groove 201 corresponding to the first receiving groove 101. The first receiving groove 101 and the second receiving groove 201 constitute a clamping hole 24 for accommodating the catheter 6. During use, after determining the implantation depth, place the end of catheter 6 in the first receiving groove 101. Then, fasten the second clamping member 2 onto the first clamping member 1 so that the second receiving groove 201 aligns with the first receiving groove 101, positioning catheter 6 within the clamping hole 24. Secure catheter 6 by locking it with the first and second connectors to prevent movement. Trim the end of catheter 6, then manually squeeze the clamping assembly to connect catheter 6 to the metal interface 20 of the infusion port 18. This allows for quick connection and effectively prevents catheter 6 from slipping due to direct hand gripping of catheter 6 or gauze during connection to the metal interface 20 of the infusion port 18. During connection, to facilitate observation of alignment between the catheter 6 end and the metal interface 20 of the infusion port 18, leave a 0.5-1mm margin when trimming the end of catheter 6.

[0033] As one implementation method, to further improve the clamping force of the clamping assembly on the conduit 6 and prevent the conduit 6 from slipping, the following measures are further adopted: A C-shaped clamping tube 3 is provided in the first receiving groove 101. The clamping tube 3 is fixedly connected to the inner wall of the first receiving groove 101 by adhesive. The opening on the side wall of the clamping tube 3 faces away from the first clamping member 1. This arrangement facilitates the placement of the conduit 6 into the clamping tube 3 through the opening on the side wall of the clamping tube 3. At the same time, when the second clamping member 2 is engaged with the first clamping member 1, the conduit 6 can be clamped more tightly by squeezing the clamping tube 3. To avoid damage to the conduit 6 during clamping, a first rubber layer 4 is provided on the inner wall of the clamping tube 3; a clamping piece 5 that matches the opening on the side wall of the clamping tube 3 is provided in the second receiving groove 201. A second rubber layer 7 is provided on the side of the clamping piece 5 closest to the conduit 6. When the second clamping member 2 is engaged with the first clamping member 1, the clamping tube 3 and the clamping piece 5 can surround the conduit 6 from the circumferential side of the conduit 6 to clamp it, so that the circumferential side of the conduit 6 is subjected to uniform force.

[0034] To further increase friction and prevent the conduit 6 from slipping, anti-slip textures (not shown in the figure) can be provided on the side of the first rubber layer 4 and the second rubber layer 7 near the conduit 6.

[0035] Furthermore, to prevent the catheter 6 from sliding away from the metal interface 20 when passing over the protrusion on the metal interface 20, thus making it difficult for the catheter 6 to pass over the protrusion on the metal interface 20, the following measures are adopted:

[0036] The inner wall of one end of the clamping tube 3 has a first protrusion 31 along the circumferential direction. The first rubber layer 4 has a first limiting groove 41 that matches the first protrusion 31. The clamping piece 5 has a third protrusion 25 on the side near the second rubber layer 7. The second rubber layer 7 has a second limiting groove 26 that matches the third protrusion 25. The first protrusion 31 and the third protrusion 25 cooperate to form an annular structure, and the first limiting groove 41 and the second limiting groove 26 cooperate to form an annular groove. When the conduit 6 passes over the protrusion on the metal interface 20, the first protrusion 31 and the third protrusion 25 can press the conduit 6, further preventing the conduit 6 from slipping and making it easier for the conduit 6 to pass over the protrusion on the metal interface 20. In a preferred embodiment, a second protrusion 42 corresponding to the first protrusion 31 can be provided on the inner wall side of the first rubber layer 4 away from the clamping tube 3. A guide surface is provided on the side of the second protrusion 42 near the metal interface 20. A fourth protrusion 27 is provided on the side of the second rubber layer 7 away from the clamping piece 5. The fourth protrusion 27 corresponds to the third protrusion 25. A guide surface is provided on the side of the fourth protrusion 27 near the metal interface 20. The fourth protrusion 27 and the second protrusion 42 form an annular structure. This arrangement can further increase the clamping force on the conduit 6, making it easier for the conduit 6 to pass over the protrusion on the metal interface 20 and thus connect the conduit 6 to the metal interface 20 in place.

[0037] Further, as one embodiment, the first clamping member 1 includes a first connecting portion 11 and a second connecting portion 12, both of which are semi-cylindrical, and their center lines are on the same straight line. The first receiving groove 101 is arranged along the center line direction of the first connecting portion 11 and the second connecting portion 12. The second clamping member 2 includes a third connecting portion 21 and a fourth connecting portion 22, both of which are semi-cylindrical, and their center lines are on the same straight line. The second receiving groove 201 is arranged along the center line direction of the third connecting portion 21 and the fourth connecting portion 22. The first connecting part 11 and the third connecting part 21 form a columnar structure, and the second connecting part 12 and the fourth connecting part 22 also form a columnar structure. Anti-slip textures 8 are provided on the peripheral surfaces of the columnar structures formed by the first connecting part 11 and the third connecting part 21. The anti-slip textures 8 on the first connecting part 11 and the third connecting part 21 are symmetrically arranged. This arrangement facilitates hand gripping of the columnar structures formed by the first connecting part 11 and the third connecting part 21, increasing friction and preventing slippage. A first protrusion 31 is located at the end of the clamping tube 3 located at the second connecting part 12 away from the first connecting part 11. The first connecting member is a connecting post 9, which is fixedly located on the side of the second connecting part 12 near the fourth connecting part 22. There are two connecting posts 9, symmetrically arranged on both sides of the first receiving groove 101. The second connecting member is a mounting hole 10 opened on the fourth connecting part 22, with each mounting hole 10 corresponding to a connecting post 9. In specific implementation, the connecting post 9 and the mounting hole 10 are interference-fitted.

[0038] To further improve the locking tightness and prevent the catheter 6 from slipping out of the clamping hole 24, a locking ring 13 is also included. The locking ring 13 is sleeved on the columnar structure formed by the second connecting part 12 and the fourth connecting part 22. The second connecting part 12 has a first stop bar 14 on its peripheral side, and the fourth connecting part 22 has a second stop bar 15 on its peripheral side. The first stop bar 14 and the second stop bar 15 form a retaining ring, and the locking ring 13 abuts against the retaining ring. The diameter of the columnar structure formed by the first connecting part 11 and the third connecting part 21 is smaller than the diameter of the columnar structure formed by the second connecting part 12 and the fourth connecting part 22. With this arrangement, when the columnar structure formed by the first connecting part 11 and the third connecting part 21 is squeezed to connect the catheter 6 to the metal interface 20 of the infusion port 18, the second connecting part 12 and the fourth connecting part 22 can block the hand, further preventing the hand from slipping off the clamping assembly, making it easier to apply force to the clamping assembly, and improving the connection efficiency between the catheter 6 and the metal interface 20.

[0039] To facilitate the installation of the locking ring 13, a guide surface is provided on the side of the locking ring 13 near the retaining ring.

[0040] The existing infusion port 18 is fixed by the catheter lock 23 after being connected to the catheter 6. The catheter lock 23 and the infusion port 18 are existing technologies and will not be described in detail here.

[0041] In practical use, during surgery, after the catheter 6 is placed in the designated position, the catheter lock 23 and locking ring 13 are sequentially slipped onto the catheter 6 from its end. Then, the first clamping member 1 and the second clamping member 2 are clamped at the appropriate position at the end of the catheter 6. The locking ring 13 is slipped onto the columnar structure formed by the second connecting part 12 and the fourth connecting part 22 and abuts against the retaining ring. The end of the catheter 6 is trimmed. (The clamping position of the first clamping member 1 and the second clamping member 2 at the end of the catheter 6 is determined according to the implantation depth. For example, if the required implantation depth is 35cm, the first clamping member 1 and the second clamping member 2 can be clamped near 35cm according to the markings on the catheter 6, so that the 35cm mark...) The length of the clamping assembly slightly protruding from the guideline is 0.5-1mm. When trimming the end of the catheter 6, cut the catheter at 35cm. Pinch the columnar structure formed by the first connecting part 11 and the third connecting part 21 to fit the end of the catheter 6 onto the metal interface 20 of the infusion port 18 and ensure it is in place. Then, move the locking ring 13 back onto the catheter 6, disengaging it from the first clamping member 1 and the second clamping member 2. Remove the first clamping member 1 and the second clamping member 2, and remove the locking ring 13 over the infusion port 18. Finally, install the catheter lock 23 onto the metal interface 20 to lock the catheter 6 to the metal interface 20, completing the connection between the catheter 6 and the metal interface 20. The inner ring size of the locking ring 13 is larger than the size of the infusion port 18 to ensure that the infusion port 18 can pass through the locking ring 13.

[0042] To facilitate the removal of the second clamping member 2 from the first clamping member 1, the following measures are adopted: The first stop bar 14 and the second stop bar 15 are each provided with a guide surface at their respective ends. The guide surface on the first stop bar 14 and the guide surface on the second stop bar 15 form a finger receiving groove 16. When it is necessary to remove the second clamping member 2 from the first clamping member 1, hold the first clamping member 1 with one hand, insert the thumb and forefinger of the other hand into the two-finger receiving groove 16 respectively, and then pull the second clamping member 2 away from the first clamping member 1. The second clamping member 2 can then be easily separated from the first clamping member 1.

[0043] In one embodiment, the first connector and the second connector can also be the male and female buckles of a hook and loop fastener, respectively. To facilitate positioning when the first clamping member 1 and the second clamping member 2 are fastened, a magnetic buckle can be provided on the side of the first clamping member 1 and the second clamping member 2 that are close to each other. When using, when the first clamping member 1 and the second clamping member 2 are fastened, the magnetic buckle is used for positioning first, and then the hook and loop fastener is used for fixing, so that the first clamping member 1 and the second clamping member 2 clamp the guide tube 6.

[0044] See Figures 10-11As shown, as one implementation, it also includes a V-clamp 17. The clamping assembly is fixedly disposed at one end of the V-clamp 17, and the other end of the V-clamp 17 is provided with a mounting base 19 for fixing the infusion port 18. The infusion port 18 is engaged with the mounting base 19. When the V-clamp 17 is clamped, the metal interface 20 on the infusion port 18 is aligned with the clamping hole 24. Specifically, the mounting base 19 includes a base 30 and a clamping plate 32. The clamping plate 32 is fixedly disposed on the base 30, and a groove for accommodating the infusion port 18 is formed between the clamping plate 32 and the base 30. The base 30 is fixedly connected to one end of the V-clamp 17, and the first clamping member 1 of the clamping assembly is fixedly connected to the other end of the V-clamp 17.

[0045] During use, after the catheter 6 is placed in the designated position during surgery, the catheter lock 23 and locking ring 13 are sequentially slipped onto the catheter 6 from its end. Then, the first clamping member 1 and the second clamping member 2 are clamped at the appropriate position at the end of the catheter 6. The locking ring 13 is slipped onto the columnar structure formed by the second connecting part 12 and the fourth connecting part 22 and abuts against the retaining ring. The end of the catheter 6 is trimmed. Then, the V-shaped clamp 17 is squeezed to close, thereby aligning the metal interface 20 on the infusion port 18 with the clamping hole 24. After alignment, the first connecting part 11 and the third connecting part 21 are squeezed together. The cylindrical structure of the catheter 6 is fitted onto the metal interface 20 of the infusion port 18 and positioned correctly. Then, the locking ring 13 is moved back onto the catheter 6, disengaging it from the first clamp 1 and the second clamp 2. The second clamp 2 is removed, and the infusion port 18 is taken off the mounting base 19 (at this point, the V-clamp 17 is disengaged from the infusion port 18 and the catheter 6 and can be removed). Next, the locking ring 13 is removed over the infusion port 18. Finally, the catheter lock 23 is installed onto the metal interface 20, locking the catheter 6 to the metal interface 20, thus completing the connection between the catheter 6 and the metal interface 20. The locking ring 13 can also be removed after the catheter lock 23 is installed onto the metal interface 20. The V-clamp 17 facilitates alignment of the open end of the catheter 6 with the metal interface 20. During use, simply squeezing the V-clamp 17 closes the connection, eliminating the need for visual inspection and effectively improving the connection efficiency between the catheter 6 and the metal interface 20.

[0046] Furthermore, the V-shaped clamp 17 has latches 28 on its opposite side walls. Specifically, each latch 28 includes a first latching member 281 and a second latching member 282. The first latching member 281 is fixedly installed on one side wall of the V-shaped clamp 17, and the second latching member 282 is installed on the other side wall of the V-shaped clamp 17. When the first latching member 281 and the second latching member 282 engage, the metal interface 20 on the infusion port 18 aligns with the clamping hole 24. The specific structure of the latches 28 is prior art and can be implemented by those skilled in the art; therefore, it will not be described in detail here.

[0047] The above description, based on the embodiments shown in the drawings, details the structure, features, and effects of this utility model. The above description is only a preferred embodiment of this utility model, but the scope of implementation of this utility model is not limited to what is shown in the drawings. Any changes made in accordance with the concept of this utility model, or modifications to equivalent embodiments, that do not exceed the spirit covered by the specification and drawings, shall be within the protection scope of this utility model.

Claims

1. An auxiliary device for connecting a port-of-care catheter, characterized in that: The device includes a clamping assembly, which includes a first clamping member (1) and a second clamping member (2). The first clamping member (1) is provided with a first connecting member, and the second clamping member (2) is provided with a second connecting member. The first connecting member and the second connecting member are detachably connected. The first clamping member (1) is provided with a first receiving groove (101), and the second clamping member (2) is provided with a second receiving groove (201) corresponding to the first receiving groove (101). The first receiving groove (101) and the second receiving groove (201) constitute a clamping hole (24) for receiving the conduit (6).

2. The infusion port catheter connection auxiliary device according to claim 1, characterized in that: The first receiving groove (101) is provided with a clamping tube (3) with a C-shaped cross section, and the opening on the side wall of the clamping tube (3) is away from the first clamping member (1); the inner wall of the clamping tube (3) is provided with a first rubber layer (4); the second receiving groove (201) is provided with a clamping piece (5) that matches the opening on the side wall of the clamping tube (3), and the clamping piece (5) is provided with a second rubber layer (7) on the side near the guide tube (6).

3. The infusion port catheter connection auxiliary device according to claim 2, characterized in that: The inner wall of one end of the clamping tube (3) is provided with a first protrusion (31) along the circumferential direction. The first rubber layer (4) is provided with a first limiting groove (41) that matches the first protrusion (31). The clamping piece (5) is provided with a third protrusion (25) on the side near the second rubber layer (7). The second rubber layer (7) is provided with a second limiting groove (26) that matches the third protrusion (25). The first protrusion (31) and the third protrusion (25) cooperate to form an annular structure. The first limiting groove (41) and the second limiting groove (26) cooperate to form an annular groove.

4. The infusion port catheter connection auxiliary device according to claim 3, characterized in that: The first clamping member (1) includes a first connecting part (11) and a second connecting part (12). Both the first connecting part (11) and the second connecting part (12) are semi-cylindrical. The center lines of the first connecting part (11) and the second connecting part (12) are on the same straight line. The first receiving groove (101) is arranged along the center line direction of the first connecting part (11) and the second connecting part (12). The second clamping member (2) includes a third connecting part (21) and a fourth connecting part (22). The third connecting part (21) and the fourth connecting part (22) are both semi-cylindrical, and the center lines of the third connecting part (21) and the fourth connecting part (22) are on the same straight line. The second receiving groove (201) is arranged along the center line direction of the third connecting part (21) and the fourth connecting part (22).

5. The infusion port catheter connection auxiliary device according to claim 4, characterized in that: The first connecting part (11) and the third connecting part (21) form a columnar structure, the second connecting part (12) and the fourth connecting part (22) form a columnar structure, and the peripheral side of the columnar structure formed by the first connecting part (11) and the third connecting part (21) is provided with anti-slip texture (8).

6. The infusion port catheter connection auxiliary device according to claim 5, characterized in that, The first protrusion (31) is located at the end of the clamping tube (3) located at the second connecting part (12) away from the first connecting part (11).

7. The infusion port catheter connection auxiliary device according to claim 6, characterized in that: The first connector is a connecting post (9), which is fixedly disposed on the side of the second connecting part (12) near the fourth connecting part (22). There are two connecting posts (9), which are symmetrically disposed on both sides of the first receiving groove (101). The second connector is a mounting hole (10) opened on the fourth connecting part (22), and the mounting hole (10) corresponds one-to-one with the connecting post (9).

8. The infusion port catheter connection auxiliary device according to claim 7, characterized in that: It also includes a locking ring (13), which is sleeved on the columnar structure formed by the second connecting part (12) and the fourth connecting part (22). The second connecting part (12) has a first stop bar (14) on its peripheral side and the fourth connecting part (22) has a second stop bar (15) on its peripheral side. The first stop bar (14) and the second stop bar (15) form a retaining ring, and the locking ring (13) abuts against the retaining ring.

9. The infusion port catheter connection auxiliary device according to claim 8, characterized in that: The first stop bar (14) and the second stop bar (15) are provided with guide surfaces at their ends close to each other. The guide surface on the first stop bar (14) and the guide surface on the second stop bar (15) form a finger receiving groove (16).

10. The infusion port catheter connection auxiliary device according to claim 1, characterized in that: It also includes a V-shaped clamp (17), the clamping assembly is fixedly disposed at one end of the V-shaped clamp (17), and the other end of the V-shaped clamp (17) is provided with a mounting base (19) for fixing the infusion port seat (18), the infusion port seat (18) is engaged with the mounting base (19); when the V-shaped clamp (17) is clamped, the metal interface (20) on the infusion port seat (18) is aligned with the clamping hole (24).

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