Medical catheter connector with guiding function
The design of the bevel and lug guides solves the problem of limited internal space in the male conduit connector, simplifies the processing and assembly process, and reduces costs.
Patent Information
- Application Number
- CN202620054727.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2026-01-16
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2036-01-16
AI Technical Summary
The internal space of the male connector of the existing conduit is limited, which increases the difficulty of processing and assembly, and results in high material and labor costs.
The design employs a bevel and lug guide mechanism, allowing the lug to slide into the slot when the male connector is inserted into the female connector under thrust, thus achieving the correspondence between the insertion hole and the pin.
The number of parts was reduced, the structure was simplified, the processing and assembly difficulty was lowered, and material and labor costs were reduced.
Smart Images
Figure CN223944775U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of catheter joint, specifically is a medical catheter joint with guiding function. BACKGROUND
[0002] At present, the minimally invasive surgery in the body has the advantages of small incision, high safety, fast recovery and low cost compared with ordinary surgery, and accounts for a very large proportion in the diagnosis and treatment surgery, and the catheter is almost used in the surgery, and various signal lines, grounding wires, identification lines and shielding lines are often used in some catheters, which are conveniently and reliably connected with the driver or host through the catheter joint, but the catheter joint must be small in shape while being automatically guided to dock, so that the volume of all internal structures is as small as possible and the structure is as simple as possible.
[0003] The existing catheter joint is generally designed with two-azimuth slot guiding, and the two slots in the female head are distributed about the axis at 180 degrees, when the male head is inserted into the female head, the two lugs on the male head will randomly contact any two of the four inclined surfaces (the two inclined surfaces are distributed about the axis at 180 degrees) of the female head and slide into the two slots, since the two slots are also distributed about the axis at 180 degrees, so two insertion holes about the axis at 180 degrees must be reserved on the male head for the insertion pins in the female head, but this will make the internal space of the male head more crowded, increase the processing and assembly difficulty, and also increase the material and labor costs.
[0004] Therefore, we propose a medical catheter joint with guiding function. CONTENT OF THE UTILITY MODEL
[0005] The utility model aims at providing a medical catheter joint with guiding function to solve the problem of making the internal space of the male head more crowded, increasing the processing and assembly difficulty, and also increasing the material and labor costs as proposed in the background technology.
[0006] To achieve the above object, the utility model provides the following technical scheme: A medical catheter joint with guiding function, including catheter, shell, female head and male head, a part of the catheter inserts the shell inside, the female head sets up in the shell, the shell inside is equipped with bearing, the bearing outer ring is fixed with the shell, the bearing inner ring fixedly connected female head is close to the catheter one side, the female head is provided with the inner chamber in the side away from the catheter, the inner chamber is cylindrical, the inner chamber is close to the inner wall of the catheter one side and is provided with PCB board, a plurality of insertion pins are welded to the side of the PCB board towards the male head, the male head is movably arranged in the inner chamber of the female head, the male head is provided with a plurality of insertion holes matched with the insertion pins towards the PCB board one end, the female head side wall surface is also provided with bevel and notch, the bevel extends towards the notch and is connected with the notch, the male head is provided with lug, the lug is rotatably arranged and is used for contacting the bevel or the notch.
[0007] In some embodiments, the catheter is fixedly connected with a drive shaft at one end inside the shell, the drive shaft is provided with a cable at an end away from the catheter, and the cable is welded to the PCB board.
[0008] In some embodiments, the bevel is symmetrically arranged along the axis of the notch, the bottom of the notch is the lowest point, and the position of the bevel opposite to the bottom of the notch is the highest point.
[0009] In some embodiments, the size of the notch is consistent with the lug.
[0010] In some embodiments, the lug is cylindrical, when half of the lug enters the notch, the insertion pins are aligned with the insertion holes and are about to be inserted into the insertion holes, and when the lug reaches the bottom of the notch, the insertion pins are completely inserted into the insertion holes.
[0011] In some embodiments, the insertion holes in the male head correspond one-to-one with the insertion pins on the PCB board.
[0012] In some embodiments, the depth of the notch is greater than the length of the insertion pins.
[0013] The utility model at least has the following beneficial effects:
[0014] The medical catheter joint of the application adopts the bevel and lug guiding mode, so that when the male head is inserted into the female head under the action of the thrust, the lug cooperates with the bevel to finally make the lug slide into the notch, and the correspondence between the insertion holes and the insertion pins can be directly realized. In this way, the number of parts is reduced, the structure is simplified, the processing and assembly difficulty is reduced, and the material and labor costs are reduced. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 It is the whole structure perspective schematic view of the medical catheter joint of the utility model;
[0016] Figure 2 It is the female head structure perspective schematic view of the medical cathater joint of the utility model;
[0017] Figure 3 It is the male head structure schematic view of the medical catheter joint of the utility model;
[0018] Figure 4 It is the PCB board structure schematic view of the medical catheter joint of the utility model;
[0019] Figure 5 It is the sectional view schematic view of the medical catheter joint of the utility model.
[0020] In the drawing: 1, catheter; 2, shell; 3, drive shaft; 4, bearing; 5, cable; 6, PCB board; 61, pin; 7, male head; 71, jack; 72, lug; 8, female head; 81, notch; 82, inclined surface, 9, inner cavity. DETAILED DESCRIPTION
[0021] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.
[0022] Please refer to Figure 1 and Figure 5 The utility model provides a kind of medical catheter joint with guiding function, and medical catheter joint includes catheter 1, shell 2, female head 8 and male head 7. Among them, catheter 1 is inserted into shell 2 inside part, female head 8 is arranged in shell 2, bearing 4 is arranged in shell 2 inside, bearing 4 outer ring is fixed with shell 2, bearing 4 inner ring is fixedly connected with female head 8 close to catheter 1 side, female head 8 is provided with inner cavity 9 away from catheter 1 side, the inner cavity 9 is cylindrical, and the inner wall of the inner cavity 9 close to catheter 1 side is provided with PCB board 6. Please refer to Figure 4 , PCB board 6 is welded with multiple pins 61 towards male head 7 side, male head 7 is movably arranged in female head 8 inner cavity 9, and male head 7 is provided with multiple jacks 71 matched with pin 61 towards PCB board 6 end. Please refer to Figure 2 and Figure 3 , female head 8 side wall surface is also provided with inclined surface 82 and notch 81, inclined surface 82 extends to notch 81 and is connected with notch 81, inclined surface 82 extends to notch 81, male head 7 is provided with lug 72, lug 72 is rotatably arranged and is used to contact inclined surface 82 or notch 81.
[0023] In some embodiments, referring to Figure 1 , Figure 4 and Figure 5 , the catheter 1 is fixedly connected to the driving shaft 3 at one end inside the shell 2, the driving shaft 3 is provided with a cable 5 at the end away from the catheter 1, and the cable 5 is welded to a PCB board 6. The cable 5, the PCB board 6 and the pin 61 are electrically connected, and the three cooperate to realize stable interaction of signals and power. The PCB board 6 receives the sensor signals such as pressure and flow rate from the cable 5, performs simple processing such as filtering and conversion, and then transmits the processed signals to an external device such as a monitor through the pin 61, while receiving external power supply, and then supplying power to the sensor through the cable 5 after voltage stabilization by the circuit. In addition, the PCB board 6 can also undertake the functions of anti-interference and circuit protection to ensure the safety of use in medical scenarios.
[0024] In some embodiments, referring to Figure 1 and Figure 2 , the inclined surface 82 is symmetrically arranged along the axis of the slot 81, and the surface of the inclined surface 82 and the slot 81 is arranged such that the bottom position of the slot 81 is the lowest point and the position of the inclined surface 82 opposite to the bottom position of the slot 81 is the highest point. In this way, no matter from which angle the male head 7 is inserted into the female head 8, it can finally be moved into the slot 81 under the action of external force through the lug 72 and the inclined surface 82.
[0025] In some embodiments, the size of the slot 81 is consistent with that of the lug 72. In this way, the fixation of the male head 7 is facilitated.
[0026] In some embodiments, the lug 72 is in a cylindrical shape, when half of the lug 72 enters the slot 81, the pin 61 is aligned with the insertion hole 71 and the pin 61 is about to be inserted into the insertion hole 71, and when the lug 72 reaches the bottom of the slot 81, the pin 61 is completely inserted into the insertion hole 71.
[0027] Specifically, in use, in the process of pushing the male head 7 into the female head 8, after the lug 72 contacts the inclined surface 82, the lug 72 rotates along the inclined surface 82 and pushes the male head 7 into the female head 8. The lug 72 rotates along the inclined surface 82 and moves to the position of the slot 81, when half of the lug 72 enters the slot 81, the pin 61 is exactly aligned with the insertion hole 71. The male head 7 continues to be pushed into the female head 8, and when the lug 72 enters the bottom of the slot 81, the insertion depth of the pin 61 reaches the preset matching value of the pin 61 and the insertion hole 71, at this time, the connection process of the medical catheter connector with the host or driver is completed.
[0028] In some embodiments, the insertion hole 71 in the male head 7 corresponds to the pin 61 on the PCB board 6 one by one.
[0029] In some embodiments, the depth of the slot 81 is greater than the length of the pin 61.
[0030] The medical catheter joint of the present application adopts the inclined surface 82 and lug 72 guiding mode, so that when the male head 7 is inserted into the female head 8 under the action of the thrust, the lug 72 cooperates with the inclined surface 82 to finally make the lug 72 slide into the notch 81, and the insertion hole 71 and the insertion pin 61 can be directly matched. In this way, the number of parts is reduced, the structure is simplified, the processing and assembly difficulty is reduced, and the material and labor cost is reduced.
[0031] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one from another entity or action without necessarily requiring or implying such entity or action are in any specific sequence, manner or order. Also, the terms "comprising," "including," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.
[0032] Although the embodiments of the present application have been shown and described, it is to be understood that for the purpose of the present application, the embodiments change, modify, replace, and vary in many ways without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.
Claims
1. A medical catheter connector with a guiding function, characterized in that: The utility model provides a connector, including conduit, shell, female head and male head, the conduit part inserts the inside of shell, the female head sets up in the shell, the inside of shell is equipped with bearing, the outer ring of bearing is fixed with the shell, the inner ring of bearing is fixedly connected female head near the one side of conduit, the female head is provided with the inner chamber in the one side away from the conduit, the inner chamber is cylindrical, the inner wall of the one side near the conduit of inner chamber is provided with PCB board, a plurality of insertion pins are welded to the one side of PCB board towards male head, the male head is movably arranged in the inner chamber of female head, the male head is equipped with a plurality of insertion holes towards the one end of PCB board, the female head side wall surface is also provided with bevel and notch, the bevel extends to the notch and is connected with the notch, the male head is provided with lug, the lug is rotatably arranged and is used for contacting the bevel or the notch.
2. The medical catheter connector with guiding function according to claim 1, characterized in that: The conduit is fixedly connected with a drive shaft at one end inside the shell, the drive shaft is provided with a cable wire at an end away from the conduit, and the cable wire is welded to the PCB board.
3. The medical catheter connector with guiding function according to claim 1, characterized in that: The bevel is symmetrically arranged along the axis of the notch, the bottom of the notch is the lowest point, and the position of the bevel opposite to the bottom of the notch is the highest point.
4. The medical catheter connector with guiding function according to claim 1, characterized in that: The size of the notch is consistent with the lug.
5. The medical catheter connector with guiding function according to claim 4, characterized in that: The lug is cylindrical, when half of the lug enters the notch, the insertion pins are aligned with the insertion holes and are about to be inserted into the insertion holes, and when the lug reaches the bottom of the notch, the insertion pins are completely inserted into the insertion holes.
6. The medical catheter connector with guiding function according to claim 1, characterized in that: The insertion holes in the male head correspond one-to-one with the insertion pins on the PCB board.
7. The medical catheter connector with guiding function according to claim 1, characterized in that: The depth of the notch is greater than the length of the insertion pins.