Liquid injection system of self-puncturing reamer

Abstract

The self-puncturing reamer liquid injection system comprises a reamer, the reamer comprises a guide rod, a reaming pipe and an outer pipe body, the guide rod is tubular, one end of the guide rod is provided with a needling part, the needling part is provided with a liquid injection opening, and the needling part is obliquely arranged relative to the axial direction of the guide rod; the guide rod is sleeved with the reaming pipe, one end of the reaming pipe is provided with a reaming tip, the reaming tip is obliquely arranged relative to the axial direction of the reaming pipe, and when the needling part of the guide rod is located at the reaming tip, the inclination direction of the needling part is the same as the inclination direction of the reaming tip so that the sharpness can be improved; the outer pipe body is arranged on the reaming pipe in a sleeving mode, an inserting part is arranged at the end of the outer pipe body, and when the reaming tip end of the reaming pipe is located on the inserting part, the outer wall of the reaming tip end is attached to the inner wall of the inserting part to improve sharpness. Through the arrangement of the acupuncture part, the reaming tip and the insertion part, the device can be conveniently inserted into the human body to puncture the skin and inject liquid, a scalpel does not need to be used for opening treatment, the operation complexity is reduced, and the convenience of an operator is improved.

Description

Technical Field

[0001] This application relates to the field of surgical instrument technology, and in particular to a self-puncture dilator injection system. Background Technology

[0002] A wound reamer is a fundamental tool in orthopedic surgery. It is typically made of stainless steel, titanium alloy, or polymer materials. Provided non-sterile, it is a commonly used tool in most surgical departments, used to widen the wound after skin incision to facilitate exposure of the surgical area.

[0003] Before using a reamer, a scalpel or puncture tool is used to make an incision in the skin and determine the surgical location. Then, the incision needs to be gradually expanded to the required size according to the needs of the surgery before the procedure can be performed, making the operation cumbersome. Utility Model Content

[0004] Based on this, a self-puncture expander injection system is provided, which eliminates the need to break open the skin and determine the surgical location beforehand using a scalpel or puncture tool, thus improving the convenience of operation for the operator.

[0005] Therefore, this application provides a self-piercing expander injection system, including an expander. The expander includes: a guide rod, which is tubular in shape, with a needle-shaped portion at one end and an injection port at the needle-shaped portion, the needle-shaped portion being inclined relative to the axial direction of the guide rod; an expanding tube, which is sleeved on the guide rod, with an expanding tip at one end, the expanding tip being inclined relative to the axial direction of the expanding tube, wherein when the needle-shaped portion of the guide rod is located at the expanding tip, the inclination direction of the needle-shaped portion is the same as the inclination direction of the expanding tip to improve sharpness; and an outer tube body, which is sleeved on the expanding tube, with an insertion portion at the end of the outer tube body, wherein when the expanding tip of the expanding tube is located at the insertion portion, the outer wall of the expanding tip fits against the inner wall of the insertion portion to improve sharpness.

[0006] In one embodiment, a tracking component is also included, comprising: a first tracker detachably connected to the guide rod; and a second tracker detachably connected to the reaming tube.

[0007] In one embodiment, the first tracker is connected to the guide rod via a clip, the guide rod has a locking groove on its periphery, the clip has a first elastic element and a first locking element, one end of the first elastic element is connected to the clip and the other end is connected to the first locking element, and the first locking element is used to engage with the locking groove.

[0008] In one embodiment, the engaging groove is an annular groove.

[0009] In one embodiment, the jacket is further provided with a liquid injection component, the liquid injection component is provided with a liquid inlet, and the liquid injection component is provided with a surrounding edge around the liquid inlet.

[0010] In one embodiment, the end of the outer tube away from the insertion part is also connected to a handheld part, the second tracker is connected to an open sleeve, the opening of the open sleeve is opposite to the second tracker, the side of the handheld part is provided with a second elastic member and a second engaging part, one end of the second elastic member is connected to the handheld part, the other end of the second elastic member is connected to the second engaging part, and the inner sidewall of the open sleeve is provided with an engaging hole adapted to the second engaging part.

[0011] In one embodiment, the end of the handheld part away from the outer tube is connected to a gripping part. The handheld part and the gripping part are connected by a snap-fit ​​assembly, which includes a snap-fit ​​protrusion and a snap-fit ​​arm. The snap-fit ​​arm is disposed on the outer peripheral wall of the gripping part, and a snap-fit ​​groove is formed on the inward side of the snap-fit ​​arm. The snap-fit ​​protrusion is disposed on the outer peripheral wall of the handheld part and extends circumferentially. The snap-fit ​​protrusion extends into the snap-fit ​​groove of the snap-fit ​​arm to connect the snap-fit ​​protrusion with the snap-fit ​​arm.

[0012] In one embodiment, the handle has a lug protruding from the outer periphery of the end opposite to the expanded tube.

[0013] In one embodiment, the gripping part is provided with a hollowed-out handle, and the middle part of the handle is provided with an insertion hole for the guide rod to be inserted.

[0014] In one embodiment, the first tracker includes: a first frame detachably connected to the guide rod; a first LED disposed on the side of the first frame opposite to the guide rod; a first power supply assembly disposed on the first frame and electrically connected to the first LED; and a first switch disposed on the first frame and electrically connected to the first LED and / or the first power supply assembly for controlling the opening and closing of the first LED; and the second tracker includes: a second frame detachably connected to the guide rod; a second LED disposed on the side of the second frame opposite to the guide rod; a second power supply assembly disposed on the second frame and electrically connected to the second LED; and a second switch disposed on the second frame and electrically connected to the second LED and / or the second power supply assembly for controlling the opening and closing of the second LED.

[0015] The self-piercing expander injection system provided in this application includes a expander comprising a guide rod, an expanding tube, and an outer tube. The guide rod is tubular, with a needle-like portion at one end and an injection port at the needle-like portion. The needle-like portion is inclined relative to the axial direction of the guide rod. The expanding tube is sleeved on the guide rod, with an expanding tip at one end. The expanding tip is inclined relative to the axial direction of the expanding tube. When the needle-like portion of the guide rod is located at the expanding tip, the inclination direction of the needle-like portion is the same as that of the expanding tip to improve sharpness. The outer tube is sleeved on the expanding tube, with an insertion portion at its end. When the expanding tip of the expanding tube is located at the insertion portion, the outer wall of the expanding tip fits against the inner wall of the insertion portion to improve sharpness. The needle-like portion, expanding tip, and insertion portion of this application facilitate insertion into the human body to pierce the skin and inject fluid, eliminating the need for surgical incision, reducing operational complexity, and improving operator convenience. Attached Figure Description

[0016] Figure 1 This invention provides a schematic diagram of the structure of a self-piercing expander injection system.

[0017] Figure 2 This invention provides a partial schematic diagram of a guide rod, a borehole expander, and an outer tube.

[0018] Figure 3 This application provides a cross-sectional view of a guide rod, a borehole expander, and an outer tube.

[0019] Figure 4 This application provides a schematic diagram of the structure of a first tracker and a guide rod.

[0020] Figure 5 A cross-sectional view of a first tracker and guide rod provided in this application is shown;

[0021] Figure 6 This paper presents a schematic diagram of the structure of a second tracker and an outer tube provided in this application.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Guide rod; 11. Needle part; 12. Engaging groove; 13. Injection port; 2. Expanding tube; 21. Expanding tip; 3. Outer tube body; 31. Insertion part; 4. Tracking assembly; 41. First tracker; 411. First frame; 412. First LED bead; 413. First power supply assembly; 414. First switch; 42. Second tracker; 421. Second frame; 422. Second LED bead; 423. Second power supply assembly; 424. Second switch; 43. Jacket; 431. Injection part; 4311. Inlet; 4312. Edge; 44. Opening sleeve; 441. Engaging hole; 5. Handhold part; 51. Second engaging part; 52. Support ear; 6. Grip part; 61. Handle; 7. Buckle assembly; 71. Snap-fit ​​protrusion; 72. Snap-fit ​​arm. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0025] It should be noted that the illustrations provided in this embodiment are only schematic representations of the basic concept of this utility model. Therefore, the drawings only show the components related to this utility model and are not drawn according to the actual number, shape and size of the components. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0026] The structures, proportions, sizes, etc., illustrated in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportional relationships, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0027] The orientations or positional relationships indicated by terms such as "upper," "lower," "left," "right," "middle," "longitudinal," "transverse," "horizontal," "inner," "outer," "radial," and "circumferential" used in this specification are based on the orientations or positional relationships shown in the accompanying drawings and are only for the purpose of simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] Before using a reamer, a scalpel or puncture tool is used to make an incision in the skin and determine the surgical location. Then, the incision needs to be gradually expanded to the required size according to the needs of the surgery before the procedure can be performed, making the operation cumbersome.

[0029] To solve the above technical problems, refer to Figures 1-3 , Figure 1 This diagram illustrates the structure of a self-piercing expander injection system provided in this application. Figure 2 This diagram shows a partial schematic of a guide rod, a borehole expander, and an outer tube body provided in this application. Figure 3 This paper shows a cross-sectional view of a guide rod, a borehole expander, and an outer tube provided in this application.

[0030] This application provides a self-piercing expander injection system, including an expander. The expander includes a guide rod 1, an expanding tube 2, and an outer tube 3. The guide rod 1 is tubular, with a needle-shaped part 11 at one end and an injection port 13 at the needle-shaped part 11. The needle-shaped part 11 is inclined relative to the axial direction of the guide rod 1. The expanding tube 2 is sleeved on the guide rod 1, with an expanding tip 21 at one end. The expanding tip 21 is inclined relative to the axial direction of the expanding tube 2. When the needle-shaped part 11 of the guide rod 1 is located at the expanding tip 21, the inclination direction of the needle-shaped part 11 is the same as the inclination direction of the expanding tip 21 to improve sharpness. The outer tube 3 is sleeved on the expanding tube 2, with an insertion part 31 at the end of the outer tube 3. When the expanding tip 21 of the expanding tube 2 is located at the insertion part 31, the outer wall of the expanding tip 21 fits against the inner wall of the insertion part 31 to improve sharpness.

[0031] It should be understood that the guide rod 1 is arranged in a cylindrical shape to facilitate the transport of liquid. The guide rod 1 is provided with a needle-like part 11, which is inclined relative to the axial direction of the guide rod 1. Compared with a conical shape, the inclined needle-like part 11 can maximize the sharpness of the needle-like part 11 without changing the inner cavity size of the guide rod 1, so as to facilitate the insertion of the needle-like part 11 into the human body. A liquid injection port 13 is provided at the needle-like part 11 to facilitate the entry of liquid in the guide rod 1 into the human body.

[0032] The expanding tube 2 is also cylindrical, and its inner cavity is a working channel. The expanding tube 2 is fitted with a guide rod 1. The expanding tube 2 and the guide rod 1 are respectively provided with a expanding tip 21 at one end. The expanding tip 21 is inclined relative to the axial direction of the expanding tube 2. Compared with the conical shape of the expanding tip 21, the inclined expanding tip 21 can maximize the sharpness of the expanding tip 21 without changing the inner cavity size of the expanding tube 2, so as to facilitate the insertion of the expanding tip 21 into the human body. When the guide rod 1 is located at the expanding tip 21, the inclination direction of the needle part 11 is the same as the inclination direction of the expanding tip 21, so as to improve the sharpness of this application.

[0033] The outer tube 3 is also cylindrical. The outer tube 3 is fitted with the expansion tube 2. The outer tube 3 and the expansion tip 21 of the expansion tube 2 are provided with an insertion part 31. When the expansion tip 21 of the expansion tube 2 is located at the insertion part 31, the outer wall of the expansion tip 21 and the inner wall of the insertion part 31 are still attached to form an inclined sharp end to improve the sharpness.

[0034] This application has two working modes. In the first working mode, the guide rod 1 is punctured and anesthesia is injected simultaneously. The guide rod 1 is punctured to the required position. The guide rod can be used as a guide wire or Kirschner wire. Then, the assembled dilator tube 2 and outer tube body 3 are inserted into the human body expansion working area through the guide rod 1 and placed in the required position. At this time, the outer tube body 3 and guide rod 1 are removed, leaving the dilator tube 2. At this time, other tools can be put into the working channel of the dilator tube 2 to carry out the next surgical procedure.

[0035] The second working mode involves directly combining the guide rod 1, the reaming tube 2, and the outer tube body 3, so that the needle part 11, the reaming tip 21, and the insertion part 31 fit together to form a tip. Then, the tip is inserted into the human skin to puncture and inject fluid. After that, the outer tube body 3 and the guide rod 1 are removed, leaving the reaming tube 2. At this point, other tools can be placed into the working channel of the reaming tube 2 to carry out the next surgical procedure.

[0036] The needle-piercing part 11, the expanding tip 21, and the insertion part 31 of this application are designed to facilitate insertion into the human body to pierce the skin and inject fluid, eliminating the need for scalpel incision, reducing the complexity of the operation, and improving the convenience for the operator.

[0037] Reference Figure 1 , Figures 4-6 , Figure 4 This diagram illustrates the structure of a first tracker and guide rod provided in this application. Figure 5 This application provides a cross-sectional view of a first tracker and guide rod. Figure 6 This paper presents a schematic diagram of the structure of a second tracker and an outer tube provided in this application.

[0038] In some optional embodiments, a tracking component 4 is also included. The tracking component 4 includes a first tracker 41 and a second tracker 42. The first tracker 41 is detachably connected to the guide rod 1, and the second tracker 42 is detachably connected to the reaming tube 2. In the first working mode, the first tracker 41 is first installed on the guide rod 1. According to the instructions given by the first tracker 41, puncture and anesthesia are performed. When the designated position is reached, the first tracker 41 is removed, and the guide rod 1 is used as a guide wire or Kirschner wire. Then, the second tracker 42 is installed at the outer tube 3. The assembled reaming tube 2 and outer tube 3 are inserted into the human body expansion working area through the guide rod 1. The position is placed according to the position given by the second tracker 42. The outer tube 3 and guide rod 1 are removed, leaving the reaming tube 2. Other tools can then be placed into the working channel of the reaming tube 2 for the next surgical procedure.

[0039] In the second working mode, a second tracker 42 can be installed only at the outer tube 3 to detect the position of the expanding tube 2, or a first tracker 41 can be installed at the guide rod 1 at the same time to understand the position of the guide rod 1.

[0040] Reference Figure 4 and Figure 5 In some optional embodiments, the first tracker 41 is connected to the guide rod 1 via a sleeve 43. The guide rod 1 is provided with a locking groove 12 on its periphery. The sleeve 43 is provided with a first elastic member (not shown in the figure) and a first locking member (not shown in the figure). One end of the first elastic member is connected to the sleeve 43 and the other end is connected to the first locking member. The first locking member is used to engage with the locking groove 12.

[0041] The sleeve 43 is cylindrical, and a first elastic element is provided inside the sleeve 43. The first elastic element can be a spring, disc spring, or other elastic element. The first engaging element can be any shape, such as a block or a ball, and this application does not impose any restrictions. However, in order to allow the first engaging element to better extend into the engaging groove 12, the first engaging element is spherically shaped, and the engaging groove 12 can be adapted to fit the first engaging element. During installation, the sleeve 43 is placed on the outer periphery of the guide rod 1, and then the first engaging element is inserted into the engaging groove 12 of the guide rod 1 for engagement and fixation, thereby connecting the first tracker 41 to the guide rod 1. Compared with threaded or bolted connections, the connection of this application is more convenient and easier for the operator to assemble.

[0042] In some optional embodiments, the engaging groove 12 is an annular groove. Compared to the engaging groove 12 being adapted to the first engaging member, the annular groove makes it easier for the first engaging member to extend into it, avoiding the need for the operator to repeatedly rotate the guide rod 1 or the clip 43 to allow the first engaging member to extend into the engaging groove 12, thus further improving the convenience of operation.

[0043] The first elastic element and the first engaging element can be provided in multiples and arranged at intervals along the circumference of the sleeve 43.

[0044] In some optional embodiments, the jacket 43 is further provided with a liquid injection component 431, which has a liquid inlet 4311 and a surrounding edge 4312 around the liquid inlet 4311. The liquid injection component 431 is located at the end of the jacket 43 away from the needle-punching part 11, and the liquid injection component 431 is provided with a liquid inlet 4311 to facilitate the injection of liquid into the guide rod 1. The surrounding edge 4312 is integrally formed with the liquid injection component 431, and the surrounding edge 4312 is fitted around the liquid inlet 4311 and spaced apart from the liquid inlet 4311. The surrounding edge 4312 can provide hand protection for the operator. The lower end of the surrounding edge 4312 is open to allow spilled liquid to flow out and avoid accumulation at the surrounding edge 4312, so as not to affect the operator.

[0045] Reference Figure 1 and Figure 6 In some optional embodiments, the end of the outer tube 3 away from the insertion part 31 is also connected to the hand-held part 5, the second tracker 42 is connected to the opening sleeve 44, the opening of the opening sleeve 44 is away from the second tracker 42, the side of the hand-held part 5 is provided with a second elastic member (not shown in the figure) and a second engaging part 51, one end of the second elastic member is connected to the hand-held part 5, the other end of the second elastic member is connected to the second engaging part 51, and the inner side wall of the opening sleeve 44 is provided with an engaging hole 441 adapted to the second engaging part 51.

[0046] The opening sleeve 44 is U-shaped, with its opening facing downwards. The side wall of the opening sleeve 44 has a locking hole 441. This application does not limit the number of locking holes 441. The side wall of the handle 5 has a second elastic member and a second locking part 51. The second elastic member can be a spring, disc spring, or other elastic member; this application does not limit this. The second locking part 51 is adapted to the locking hole 441. In one example, the locking hole 441 is circular, and the second locking part 51 is cylindrical.

[0047] The device includes four locking holes 441, four second elastic elements, and four second locking parts 51, arranged in two groups. One group is located on one side of the handheld part 5, and the other group is located on the other side of the handheld part 5. The locking holes 441, the second elastic elements, and the second locking parts 51 facilitate the installation of the second tracker 42 and the outer tube 3. Furthermore, if the operator strikes the outer tube 3, it will not affect the installation of the second tracker 42 and the outer tube 3, thus improving the stability of the installation of the second tracker 42 and the outer tube 3.

[0048] In some optional embodiments, the end of the handheld part 5 away from the outer tube 3 is connected to the gripping part 6. The handheld part 5 and the gripping part 6 are connected by a snap-fit ​​assembly 7, which includes a snap-fit ​​protrusion 71 and a snap-fit ​​arm 72. The snap-fit ​​arm 72 is disposed on the outer peripheral wall of the gripping part 6, and a snap-fit ​​groove is formed on the inward side of the snap-fit ​​arm 72. The snap-fit ​​protrusion 71 is disposed on the outer peripheral wall of the handheld part 5 and extends circumferentially. The snap-fit ​​protrusion 71 extends into the snap-fit ​​groove of the snap-fit ​​arm 72 so that the snap-fit ​​protrusion 71 is connected to the snap-fit ​​arm 72.

[0049] When the latching assembly 7 needs to be engaged, align the latching groove of the latching arm 72 with the latching protrusion 71, and then rotate the latching arm 72 and the latching protrusion 71 relative to each other in a first direction, so that the latching protrusion 71 moves into the latching groove. When the latching assembly 7 needs to be unlocked, rotate the latching arm 72 and the latching protrusion 71 relative to each other in a second direction, which is opposite to the first direction, and then pull the latching protrusion 71 out of the latching groove. The latching assembly 7 is simple to operate and easy to use.

[0050] To further improve the stability of the connection between the latching components 7, at least two latching arms 72 are provided and arranged at intervals along the circumference of the grip portion 6, and at least two latching protrusions 71 are provided and arranged at intervals along the circumference of the hand grip portion 5.

[0051] In some optional embodiments, a lug 52 protrudes from the outer periphery of the end of the handpiece 5 opposite to the outer tube 3. The lug 52 is made of the same material as the handpiece 5, and the lug 52 and the handpiece 5 are integrally formed. The lug 52 facilitates the operator's rotation of the handpiece 5, improving the operator's ease of operation. Furthermore, there are two lugs 52, spaced apart along the circumference of the handpiece 5.

[0052] The locking protrusion 71 is also provided between the two lugs 52, which not only makes the lugs 52 easy to hold, but also limits the rotation angle of the locking arm 72 relative to the locking protrusion 71, preventing the locking arm 72 from rotating to other locking protrusions 71.

[0053] In some optional embodiments, the grip 6 is provided with a hollowed-out handle 61, and the center of the handle 61 is provided with an insertion hole for the guide rod 1 to be inserted. The hollowed-out handle 61 provides a distance between the operator's hand and the insertion hole of the guide rod 1, preventing the guide rod 1 from accidentally injuring the operator during insertion and improving the protection of the operator.

[0054] Reference Figure 1 , Figures 4-6In some optional embodiments, the first tracker 41 includes a first frame 411, a first LED bead 412, a first power supply assembly 413, and a first switch 414. The first frame 411 is detachably connected to the guide rod 1. The first LED bead 412 is disposed on the side of the first frame 411 opposite to the guide rod 1. The first power supply assembly 413 is disposed on the first frame 411 and electrically connected to the first LED bead 412. The first switch 414 is disposed on the first frame 411 and electrically connected to the first LED bead 412 and / or the first power supply assembly 413 to control the opening and closing of the first LED bead 412. The first frame 411 is formed by injection molding and is detachably connected to the guide rod 1 via a sleeve 43. The first LED bead 412 is located on the side of the first frame 411 opposite to the guide rod 1, making it easy for the operator to identify. The first LED bead 412 is automatically emitting light, which can increase brightness, thereby improving the positioning of the guide rod 1 and improving the operator's operation accuracy. The first power supply assembly 413 is installed on the first frame 411 and is electrically connected to the first LED bead 412 to supply power to the first LED bead 412. The first switch 414 is installed on the first frame 411 and is electrically connected to the first power supply assembly 413 and / or the first LED bead 412, that is, the first switch 414 can be used to control the opening and closing of the first LED bead 412.

[0055] The first power supply component 413 includes a battery and an external interface, which is also used to connect other external power sources.

[0056] When in operation, the first switch 414 is turned on to electrically connect the first power supply component 413 to the first LED bead 412, supplying power to the LED bead 412, causing it to illuminate for easy operation. When not in use, the first switch 414 is turned off to disconnect the power supply component 413 from the LED bead 412, stopping the LED bead 412 from illuminating and saving electricity.

[0057] In some optional embodiments, the second tracker 42 includes a second frame 421, a second LED 422, a second power supply assembly 423, and a second switch 424. The second frame 421 is detachably connected to the outer tube 3. The second LED 422 is disposed on the side of the second frame 421 opposite to the guide rod 1. The second power supply assembly 423 is disposed on the second frame 421 and electrically connected to the second LED 422. The second switch 424 is disposed on the second frame 421 and electrically connected to the second LED 422 and / or the second power supply assembly 423 to control the opening and closing of the second LED 422. The second frame 421 is formed by injection molding and is detachably connected to the outer tube 3 through an opening sleeve 44. The second LED bead 422 is located on the side of the second frame 421 opposite to the outer tube 3, making it easy for the operator to identify. The second LED bead 422 is automatically emitting light, which can increase brightness and thus improve the positioning of the outer tube 3, improving the operator's precision. The second power supply assembly 423 is installed on the second frame 421 and is electrically connected to the second LED bead 422 to supply power to it. The second switch 424 is installed on the second frame 421 and is electrically connected to the second power supply assembly 423 and / or the second LED bead 422, meaning the second switch 424 can be used to control the opening and closing of the second LED bead 422.

[0058] The second power supply component 423 includes a battery and an external interface, which is also used to connect other external power sources.

[0059] When in operation, the second switch 424 is turned on to electrically connect the second power supply component 423 to the second LED bead 422, supplying power to the LED bead 422, causing it to illuminate for easy operation. When not in use, the second switch 424 is turned off to disconnect the power supply component 423 from the LED bead 422, stopping the LED bead 422 from illuminating and saving electricity.

[0060] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0061] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A self-piercing tap liquid injection system, characterized by, Includes a hole expander, said hole expander comprising: The guide rod (1) is tubular in shape. One end of the guide rod (1) is provided with a needle-punched part (11). The needle-punched part (11) is provided with an injection port (13). The needle-punched part (11) is inclined relative to the axial direction of the guide rod (1). A reaming tube (2) is sleeved on the guide rod (1). One end of the reaming tube (2) is provided with a reaming tip (21). The reaming tip (21) is inclined relative to the axial direction of the reaming tube (2). When the needle-punched part (11) of the guide rod (1) is located at the reaming tip (21), the inclination direction of the needle-punched part (11) is the same as the inclination direction of the reaming tip (21) to improve sharpness; and An outer tube (3) is fitted onto the expanded tube (2). An insertion part (31) is provided at the end of the outer tube (3). When the expanded tip (21) of the expanded tube (2) is located in the insertion part (31), the outer wall of the expanded tip (21) fits against the inner wall of the insertion part (31) to improve sharpness.

2. The self-piercing tapping fluid injection system of claim 1, wherein, It also includes a tracking component (4), which includes: The first tracker (41) is detachably connected to the guide rod (1); and, The second tracker (42) is detachably connected to the enlarged tube (2).

3. The self-piercing tapping fluid injection system of claim 2, wherein, The first tracker (41) is connected to the guide rod (1) through a sleeve (43). The guide rod (1) has a locking groove (12) on its periphery. The sleeve (43) is provided with a first elastic member and a first locking member. One end of the first elastic member is connected to the sleeve (43) and the other end is connected to the first locking member. The first locking member is used to engage with the locking groove (12).

4. The self-piercing tapping fluid injection system of claim 3, wherein, The engaging groove (12) is an annular groove.

5. The self-piercing tapping fluid injection system of claim 3, wherein, The jacket (43) is also provided with a liquid injection component (431), the liquid injection component (431) is provided with a liquid inlet (4311), and the liquid injection component (431) is provided with a surrounding edge (4312) around the liquid inlet (4311).

6. The self-piercing tapping fluid injection system of claim 2, wherein, The outer tube (3) is connected to a handheld part (5) at one end away from the insertion part (31). The second tracker (42) is connected to an opening sleeve (44). The opening of the opening sleeve (44) is away from the second tracker (42). The side of the handheld part (5) is provided with a second elastic member and a second engaging part (51). One end of the second elastic member is connected to the handheld part (5), and the other end of the second elastic member is connected to the second engaging part (51). The inner sidewall of the opening sleeve (44) is provided with an engaging hole (441) adapted to the second engaging part (51).

7. The self-piercing tapping fluid injection system of claim 6, wherein, The handheld part (5) is connected to a gripping part (6) at one end away from the outer tube (3). The handheld part (5) and the gripping part (6) are connected by a snap-fit ​​assembly (7). The snap-fit ​​assembly (7) includes a snap-fit ​​protrusion (71) and a snap-fit ​​arm (72). The snap-fit ​​arm (72) is located on the outer peripheral wall of the gripping part (6), and a snap-fit ​​groove is opened on the inward side of the snap-fit ​​arm (72). The snap-fit ​​protrusion (71) is located on the outer peripheral wall of the handheld part (5) and extends circumferentially. The snap-fit ​​protrusion (71) extends into the snap-fit ​​groove of the snap-fit ​​arm (72) so that the snap-fit ​​protrusion (71) is connected to the snap-fit ​​arm (72).

8. The self-piercing tapping fluid injection system of claim 7, wherein, The hand-held part (5) has a lug (52) protruding from the outer periphery of the end opposite to the expanding tube (2).

9. The self-piercing tapping fluid injection system of claim 7, wherein, The grip (6) is provided with a hollow handle (61), and the middle part of the handle (61) is provided with an insertion hole for the guide rod (1) to be inserted.

10. The self-piercing tapping fluid injection system of claim 2, wherein, The first tracker (41) includes: The first frame (411) is detachably connected to the guide rod (1); The first light-emitting lamp bead (412) is disposed on the side of the first frame (411) away from the guide rod (1); A first power supply assembly (413) is disposed on the first frame (411), and the first power supply assembly (413) is electrically connected to the first light-emitting lamp bead (412); and A first switch (414) is disposed on the first frame (411). The first switch (414) is electrically connected to the first light-emitting lamp (412) and / or the first power supply assembly (413) to control the opening and closing of the first light-emitting lamp (412). And, the second tracker (42) includes: The second frame (421) is detachably connected to the guide rod (1); The second light-emitting lamp bead (422) is disposed on the side of the second frame (421) away from the guide rod (1); A second power supply assembly (423) is disposed on the second frame (421), and the second power supply assembly (423) is electrically connected to the second light-emitting lamp (422); and A second switch (424) is disposed on the second frame (421). The second switch (424) is electrically connected to the second light-emitting lamp (422) and / or the second power supply assembly (423) for controlling the opening and closing of the second light-emitting lamp (422).

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