Needle loading device and lancing apparatus

Abstract

The present application provides a needle mounting device and a puncture device. The needle mounting device comprises a base, a fixed part and a stop part being spaced on the base, a handle being located between the fixed part and the stop part and being hingedly mounted on the base, a mounting member provided with a first through needle hole, a matching member provided with a second through needle hole, and a sliding block provided on the base. A surgical needle passes through the matching member and the mounting member and is fixed on the fixed part. The handle is driven so that the mounting member and the matching member are pressed and connected and the needle body is clamped. The clamping position of the mounting member and the matching member on the surgical needle can be limited by adjusting the position of the sliding block. The matching member with different inner holes clamps surgical needles with different diameters and is suitable for most surgical needles. The doctor can quickly assemble the surgical needle with suitable length and size by using the device, then performs hand operation or machine intervention operation, and the puncture depth can be limited. The precision of the puncture depth of the surgical needle is improved by 80%, the operation efficiency is improved, and the complications are reduced.

Description

Technical Field

[0001] This article relates to medical device technology, particularly a needle loading device and a puncture device. Background Technology

[0002] The mounting component has a first needle hole, which includes a tapered hole. The inner circumferential surface of the tapered hole has an inner groove, and the outer circumferential surface of the mounting component has transmission teeth. The mating component has a tapered protrusion, and a second needle hole is located at the axis of the tapered protrusion, penetrating the mating component. The outer circumferential surface of the tapered protrusion has an outer groove, and the peripheral wall of the tapered protrusion has multiple elongated notches spaced circumferentially. The tapered protrusion is used to mate with the tapered hole for installation, and before installation, the open end of the elongated notch faces the tapered hole.

[0003] Before the surgery, the doctor selects a suitable surgical needle and passes it through the mounting and fitting components. The required length of the surgical needle is then set by adjusting the slider. Pressing the handle then compresses the mounting and fitting components. As the cylindrical protrusion notch is compressed and retracts, it tightens around the needle body, fixing the mounting and fitting components to the designated position on the needle.

[0004] This device allows doctors to quickly assemble surgical needles of appropriate length and size for manual or machine-assisted surgery. It can limit the puncture depth in both manual and machine-assisted procedures. It improves the accuracy of surgical needle puncture depth by 80%, increasing surgical efficiency and reducing complications. Summary of the Invention

[0005] This application provides a needle loading device. The assembly process of the surgical needle, mounting component, and mating component is simple and easy, and it can also hold surgical needles of different lengths and diameters, making it suitable for most surgical needles. Surgical needles loaded through the described needle loading device can be used by doctors in manual or machine-assisted surgery.

[0006] This application also provides a puncture device.

[0007] This application provides a needle loading device, comprising: a base having a fixing portion and a stop portion spaced apart thereon; and a handle located between the fixing portion and the stop portion and hinged to the base, wherein a holding portion protrudes from the side of the handle facing the stop portion; wherein, a mounting member has a through first needle hole, and a mating member has a through second needle hole; the mounting member and the mating member are placed between the holding portion and the stop portion, the needle body of the surgical needle passes through the mating member and the mounting member and is fixed to the fixing portion, driving the handle to move the holding portion toward the stop portion, and the mounting member and the mating member are pressed and connected between the holding portion and the stop portion to clamp the needle body.

[0008] This application provides a needle loading device, comprising: a base having a fixing portion and a stop portion spaced apart thereon; a handle located between the fixing portion and the stop portion and hinged to the base, the handle having a pressing portion protruding on the side facing the stop portion; a mounting member having a through first needle hole; and a fitting member having a through second needle hole; wherein the mounting member and the fitting member are placed between the pressing portion and the stop portion, the needle body of the surgical needle passes through the fitting member and the mounting member and is fixed to the fixing portion, the handle is driven to move, causing the pressing portion to move toward the stop portion, the mounting member and the fitting member are pressed and connected between the pressing portion and the stop portion, and the needle body is clamped.

[0009] In one exemplary embodiment, one of the mounting member and the mating member is provided with an insertion portion and the other is provided with a mating portion. The insertion portion is inserted into the mating portion, and the mating portion squeezes the insertion portion to clamp the needle body.

[0010] In an exemplary embodiment, the insertion part is a conical protrusion, the mating part is a conical hole, the peripheral wall of the conical protrusion is provided with a notch, and the opening end of the notch faces the conical hole.

[0011] In one exemplary embodiment, the notches include a plurality of notches, which are circumferentially spaced apart on the conical protrusion.

[0012] In an exemplary embodiment, one of the insertion part and the mating part is provided with a first snap-fit ​​part and the other is provided with a second snap-fit ​​part. The first snap-fit ​​part and the second snap-fit ​​part are snap-fitted together to keep the insertion part holding the needle body.

[0013] In an exemplary embodiment, one of the insertion part and the mating part is provided with a third snap-fit ​​part and the other is provided with a fourth snap-fit ​​part. The third snap-fit ​​part and the fourth snap-fit ​​part are snap-fitted together to achieve pre-positioning of the insertion part and the mating part.

[0014] In an exemplary embodiment, the fixing part is an elastic clip, the peripheral wall of the mounting member is provided with transmission teeth, and the pressing part includes two sets, which are located on both sides of the axis of the first needle hole.

[0015] In one exemplary embodiment, the needle loading device further includes: a push block located between the holding portion and the stop portion, and movable toward and away from the stop portion; wherein, driving the handle to move the holding portion toward the stop portion pushes the push block toward the stop portion, and the mounting member and the mating member are pressed between the push block and the stop portion to be inserted and connected, and to clamp the needle body.

[0016] In one exemplary embodiment, the needle loading device further includes a reset spring, which is installed in conjunction with the push block; wherein, driving the handle to reset, the pressing portion moves away from the stop portion, and the reset spring drives the push block to move away from the stop portion to reset.

[0017] In one exemplary embodiment, the needle loading device further includes: a slider mounted on the base, the fixing portion being located between the slider and the handle, and the slider being movable toward and away from the fixing portion.

[0018] This application provides a puncture device, including the needle loading device described in any of the above embodiments.

[0019] Compared to related technologies, this device places the mounting component and mating component between the holding part and the stop part. The needle body passes through the mating component and mounting component and is fixed to the fixing part. Driving the handle moves the holding part towards the stop part, whereby the mounting component and mating component are pressed and connected between the holding and stop parts, clamping the needle body. The assembly process of this surgical needle, mounting component, and mating component is simple and easy. Doctors can quickly assemble surgical needles of suitable length and size using this device, and then perform manual or machine-assisted interventional surgery. For both manual and machine-assisted interventional surgeries, it can limit the puncture depth, achieving an 80% improvement in surgical needle puncture depth accuracy, increasing surgical efficiency, and reducing complications.

[0020] Furthermore, by adjusting the position of the slider, the clamping position of the mounting part and the mating part on the surgical needle can be limited. Mounting parts and mating parts with different inner holes can clamp surgical needles of different diameters, which has a wide range of applications and is suitable for most surgical needles.

[0021] Other features and advantages of this application will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the application. Other advantages of this application can be realized and obtained by means of the solutions described in the description and the accompanying drawings. Attached Figure Description

[0022] The accompanying drawings are used to provide an understanding of the technical solutions of this application and constitute a part of the specification. They are used together with the embodiments of this application to explain the technical solutions of this application and do not constitute a limitation on the technical solutions of this application.

[0023] Figure 1 This is a three-dimensional structural diagram of the needle loading device according to an embodiment of the present invention;

[0024] Figure 2 for Figure 1 A schematic cross-sectional view of the main structure of the needle loading device shown.

[0025] Figure 3 for Figure 2 A magnified structural diagram of part A in the diagram;

[0026] Figure 4 for Figure 1 A three-dimensional structural diagram of the mounting components;

[0027] Figure 5 for Figure 4 A cross-sectional view of the mounting component shown.

[0028] Figure 6 for Figure 1 A three-dimensional structural diagram of the mating components;

[0029] Figure 7 for Figure 1 A schematic diagram of the three-dimensional structure after the surgical needle, mounting parts, and mating parts are assembled.

[0030] in, Figures 1 to 7 The correspondence between the reference numerals and component names in the attached drawings is as follows:

[0031] 100 Base, 110 Fixing part, 120 Stop part, 130 Pressing surface, 200 Handle, 210 Holding part, 300 Mounting part, 310 First needle hole, 320 Mating part, 330 First locking part, 340 Third locking part, 350 Transmission gear, 400 Mating part, 410 Second needle hole, 420 Insertion part, 421 Notch, 430 Second locking part, 440 Fourth locking part, 500 Surgical needle, 510 Needle body, 600 Push block, 610 Groove, 700 Return spring, 800 Slider, 810 Anti-tilting hole. Detailed Implementation

[0032] This application describes several embodiments, but these descriptions are exemplary and not restrictive. To make the objectives, technical solutions, and advantages of the present invention clearer, the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other.

[0033] This application provides a needle loading device, such as Figures 1 to 7As shown, it includes: a base 100, on which a fixing part 110 and a stop part 120 are spaced apart; a handle 200, located between the fixing part 110 and the stop part 120 and hinged to the base 100, the handle 200 having a pressing part 210 protruding on the side facing the stop part 120; a mounting member 300, on which a through first needle hole 310 is provided; and a mating member 400, on which a through second needle hole 410 is provided; wherein, The mounting part 300 and the mating part 400 are placed between the holding part 210 and the stop part 120. The needle body 510 of the surgical needle 500 passes through the mating part 400 and the mounting part 300 and is fixed to the fixing part 110. The drive handle 200 is activated, causing the holding part 210 to move toward the stop part 120. The mounting part 300 and the mating part 400 are pressed and connected between the holding part 210 and the stop part 120, and the needle body 510 is clamped.

[0034] In this needle loading device, the mounting component 300 and the mating component 400 are positioned between the holding part 210 and the stop part 120. The needle body 510 of the surgical needle 500 passes through the mating component 400 and the mounting component 300 and is fixed to the fixing part 110. The drive handle 200 is activated, causing the holding part 210 to move toward the stop part 120. The mounting component 300 and the mating component 400 are pressed and connected between the holding part 210 and the stop part 120, and the needle body 510 is held in place. The assembly process of the surgical needle 500, the mounting component 300 and the mating component 400 is simple and easy. Moreover, the length of the handle 200 conforms to the lever principle, and the pressing part conforms to ergonomics. Only a very small force is required to drive the mounting component 300 and the mating component 400 into place, which is suitable for medical use environments.

[0035] In one embodiment, the handle 200 has a press-in feedback point on its side, providing the user with clear indication of the correct position through sound and touch, preventing excessive pressing and improving the stability of the device.

[0036] In one exemplary embodiment, such as Figures 2 to 7 As shown, one of the mounting part 300 and the mating part 400 is provided with an insertion part 420 and the other is provided with a mating part 320. The insertion part 420 is inserted into the mating part 320, and the mating part 320 presses the insertion part 420 toward the axis of the insertion part 420, so that the insertion part 420 clamps the needle body 510.

[0037] In one embodiment, such as Figure 3 , Figure 5 and Figure 6As shown, the insertion part 420 is configured as a conical protrusion, and the mating part 320 is configured as a conical hole. The peripheral wall of the conical protrusion has a notch 421, and the opening end of the notch 421 faces the conical hole. When the drive handle 200 is activated, the holding part 210 moves toward the stop part 120. The mounting part 300 and the mating part 400 are held between the holding part 210 and the stop part 120, so that the conical protrusion is inserted into the conical hole. The wall of the conical hole presses the conical protrusion toward the axis of the conical protrusion, which reduces the width of the notch 421 and the inner diameter of the conical protrusion. This allows the conical protrusion to clamp the needle body 510, ensuring that there is no positional change between the mounting part 300, the mating part 320, and the surgical needle 500, thereby improving surgical safety.

[0038] Alternatively, the tapered protrusion may be located on the mounting part 300, and the tapered hole may be located on the mating part 400. In this case, the second needle hole 410 includes a tapered hole, and the tapered protrusion surrounds the first needle hole 310 along its axis; or it may be, as... Figure 5 and Figure 6 As shown, the tapered protrusion is located on the mating part 400, and the tapered hole is located on the mounting part 300. At this time, the first needle hole 310 includes the tapered hole, and the tapered protrusion surrounds the second needle hole 410 along its axis. All of the above can achieve the purpose of this application. Their purpose has not departed from the design concept of this invention, and will not be repeated here. All of them should fall within the protection scope of this application.

[0039] Of course, the conical protrusion and conical hole can also be correspondingly set as cylindrical protrusion and cylindrical hole, etc., which can also achieve the purpose of this application. The purpose has not departed from the design concept of this invention, and will not be elaborated here. It should also fall within the protection scope of this application.

[0040] In one embodiment, such as Figure 6 As shown, at least two notches 421 are provided circumferentially at intervals on the conical protrusion. This allows for a better reduction in the inner diameter of the conical protrusion when the wall of the conical hole presses against the axis of the conical protrusion. This results in a better effect of the conical protrusion clamping the needle body 510, ensuring that there is no positional change between the mounting part 300, the mating part 320, and the surgical needle 500, thereby improving surgical safety.

[0041] In one example, such as Figure 3 , Figure 5 and Figure 6 As shown, one of the conical protrusion and the wall of the conical hole is provided with a first locking part 330 and the other is provided with a second locking part 430. The first locking part 330 and the second locking part 430 are locked together to keep the conical protrusion holding the needle body 510 and prevent the conical protrusion from retracting relative to the conical hole and falling out of the conical hole. This ensures that there will be no positional change between the mounting part 300, the mating part 320 and the surgical needle 500, thereby improving surgical safety.

[0042] In one embodiment, such as Figure 3 , Figure 5 and Figure 6 As shown, one of the conical protrusion and the wall of the conical hole is provided with a third snap-fit ​​part 340 and the other is provided with a fourth snap-fit ​​part 440. The third snap-fit ​​part 340 and the fourth snap-fit ​​part 440 are snap-fitted together to realize the pre-positioning mounting part 300 and the mating part 400, and to ensure that the insertion part 420 is accurately inserted into the mating part 320.

[0043] It can be, such as Figure 3 , Figure 5 and Figure 6 As shown, the first engaging portion 330 and the third engaging portion 340 are located on the inner circumferential surface of the conical hole, and the second engaging portion 430 and the fourth engaging portion 440 are located on the outer circumferential surface of the conical protrusion. The first engaging portion 330 and the third engaging portion 340 are configured with the same structure, while the second engaging portion 430 and the fourth engaging portion 440 are configured with different structures spaced apart axially on the conical protrusion. Alternatively, the first engaging portion 330 and the third engaging portion 340 may be located on the inner circumferential surface of the conical hole, while the second engaging portion 430 and the fourth engaging portion 440 are located on the outer circumferential surface of the conical protrusion, and the first engaging portion 330 and the third engaging portion 340 may be spaced apart axially on the conical hole. Different structures can be used, with the second latching portion 430 and the fourth latching portion 440 having the same structure; or the first latching portion 330 and the third latching portion 340 being located on the inner circumferential surface of the conical hole, and the second latching portion 430 and the fourth latching portion 440 being located on the outer circumferential surface of the conical protrusion, with the first latching portion 330 and the third latching portion 340 having different structures spaced apart on the axis of the conical hole, and the second latching portion 430 and the fourth latching portion 440 having different structures spaced apart on the axial direction of the conical protrusion; all of the above can achieve the purpose of this application, and their purpose has not departed from the design concept of this invention, and will not be elaborated here, and should all fall within the protection scope of this application.

[0044] In one example, such as Figure 1 and Figure 2 As shown, the fixing part 110 is configured as an elastic clip, which holds the needle body 510, ensuring that the needle body 510 is firmly held and making the process of assembling and disassembling the needle body 510 simple and easy. The peripheral wall of the mounting part 300 is provided with transmission teeth 350, which are used to mesh with the drive gear on the puncture device. Of course, the mounting part 300 can also be designed as a cylindrical structure, a toothed structure, or a square structure, etc., to facilitate doctors to better hold it for manual puncture, and can also achieve the purpose of this application. Its purpose has not departed from the design concept of this invention, and will not be elaborated here, and should also fall within the protection scope of this application.

[0045] In one example, such as Figure 1As shown, the holding part 210 includes two sets, which are located on both sides of the axis of the first needle hole 310 (which is also the axis of the second needle hole 410). This can improve the uniformity of circumferential force when the mounting part 300 and the mating part 400 are connected by insertion, and the insertion effect of the tapered hole and the tapered protrusion is better.

[0046] In one example, such as Figures 1 to 3 As shown, the needle loading device further includes: a push block 600, located between the holding part 210 and the stop part 120, and movable toward and away from the stop part 120; and a return spring 700. The base 100 is provided with a pressing surface 130, located between the stop part 120 and the push block 600, and facing the push block 600. The return spring 700 presses between the push block 600 and the pressing surface 130. The push block 600 is provided with a slot 610 for avoiding the needle body 510.

[0047] In one embodiment, the push block 600 has a limiting edge protruding on its side facing the stop portion 120. The limiting edge is used to reduce the angular deviation between the mounting part 300 and the mating part 400, so that the first locking part 330 can be smoothly locked onto the second locking part 430, thereby improving assembly stability.

[0048] In one embodiment, such as Figures 1 to 7 As shown, the mounting part 300 is located between the push block 600 and the mating part 400. One end of the mating part 400 facing away from the mounting part 300 abuts against the stop part 120, and the other end of the mounting part 300 facing away from the mating part 400 abuts against the push block 600. When the drive handle 200 is activated, the holding part 210 moves toward the mating part 400 and pushes the push block 600 toward the mating part 400. The push block 600 pushes the mounting part 300 toward the mating part 400. The third locking part 340 and the fourth locking part 440 are unlocked. Finally, the conical protrusion is inserted into the conical hole and the conical protrusion tightens the needle body 510. At this time, the first locking part 330 is locked on the second locking part 430. When the drive handle 200 is reset, the holding part 210 moves away from the stop part 120, and the reset spring 700 pushes the push block 600 to move away from the stop part 120 to reset. At this time, the combination structure of the surgical needle 500, the mounting part 300 and the mating part 400 can be removed from the base 100.

[0049] In one example, such as Figure 1 and Figure 2As shown, the needle loading device also includes: a slider 800, which is adjustablely fixed on the base 100; a fixing part 110 located between the slider 800 and the handle 200; the slider 800 can move towards and away from the fixing part 110; the base 100 is provided with scale markings; the doctor determines the fixed position of the slider 800 on the base 100 according to the puncture depth of the surgical needle 500 and the scale markings, thus ensuring that the fixed positions of the mounting part 300 and the mating part 400 on the needle body 510 match the puncture depth. The slider 800 is provided with an anti-lifting hole 810.

[0050] In one embodiment, the slider 800 is limited by an elastic positioning bead and a positioning point on the base 100, employing ergonomic flexible damping technology. The slider 800 achieves self-positioning as it approaches the positioning point, thus allowing for rapid positioning without conscious user intervention, improving needle loading speed. The slider 800 is made of a special material that avoids rigid contact with the tip of the surgical needle 500 while ensuring the deformation meets requirements, thereby maintaining the sharpness of the surgical needle 500's tip.

[0051] In one example, such as Figures 1 to 3 , Figure 7 As shown, the needle loading device also includes a surgical needle 500. The mounting component 300, the mating component 400, and the surgical needle 500 comprise multiple sets for coordinated use. The inner diameters of the mounting components 300, the mating components 400, and the needle body 510 of each surgical needle 500 are different, allowing the surgeon to select the most suitable surgical needle 500 for operation.

[0052] It could be that the base 100 is a single-piece structure; or it could be, as... Figure 1 and Figure 2 As shown, the base 100 is a split structure; all of the above can achieve the purpose of this application, and their purpose has not departed from the design concept of this invention, so they will not be repeated here, and should all fall within the protection scope of this application.

[0053] The needle loading device is used as follows:

[0054] like Figure 1 and Figure 2As shown, the slider 800 is moved to the corresponding scale position according to the puncture depth of the surgical needle 500, and the slider 800 is fixed. The mounting part 300 and the mating part 400 are placed between the push block 600 and the stop part 120. One end of the mounting part 300 facing away from the mating part 400 abuts against the push block 600, and one end of the mating part 400 facing away from the mounting part 300 abuts against the stop part 120. The third locking part 340 is locked onto the fourth locking part 440. After the needle body 510 of the surgical needle 500 passes through the second needle hole 410 and the first needle hole 310 in sequence, it is held and fixed by the elastic clip. The needle tip of the surgical needle 500 is inserted into the anti-lifting hole 810 on the slider 800. Pressing the handle 200 causes the holding part 210 to push the slider 800, which in turn presses the mounting part 300 against the mating part 400. The third locking part 340 and the fourth locking part 440 then disengage, allowing the conical protrusion to insert into the conical hole. At this point, the conical protrusion tightens the needle body 510, and the first locking part 330 engages with the second locking part 430. The mounting part 300, the mating part 400, and the surgical needle 500 are then fixed together. Lifting the handle 200 causes the holding part 210 to move away from the stop part 120. The return spring 700 pushes the push block 600 away from the stop part 120 to reset the mounting part 300 and the mating part 400. This releases the pressure on the mounting part 300 and the mating part 400, causing the slider 800 to retract a certain distance, disengaging the tip of the surgical needle 500 from the anti-lifting hole 810. At this point, the combined structure of the surgical needle 500, the mounting part 300, and the mating part 400 can be removed from the base 100. It can be performed manually by the doctor holding the installer 300, or it can be performed in conjunction with a machine. Both manual and machine-assisted interventional procedures can limit the puncture depth. This can improve the accuracy of surgical needle puncture depth by 80%, increasing surgical efficiency and reducing complications.

[0055] This application provides a puncture device, including the needle loading device described in any of the above embodiments.

[0056] This puncture device possesses all the advantages of the needle loading device provided in any of the above embodiments, and will not be repeated here.

[0057] In one example, the puncture device also includes a puncture mechanism having a drive gear for engaging with a transmission gear 350 on the mounting 300.

[0058] In summary, the present application provides a needle loading device, wherein a mounting member and a fitting member are arranged between a pressing portion and a stop portion, the needle body of a surgical needle passes through the fitting member and the mounting member and is fixed on a fixing portion, a driving handle operates to move the pressing portion toward the stop portion, the mounting member and the fitting member are pressed between the pressing portion and the stop portion to form an inserted connection and clamp the needle body. The assembling process of the surgical needle, the mounting member and the fitting member is simple and easy, a doctor can quickly assemble a surgical needle with a suitable length and size through the device, and then perform manual or robot-assisted surgery. For both manual and robot-assisted surgery, the puncture depth can be limited, the puncture depth accuracy of the surgical needle can be improved by 80%, the surgical efficiency is improved, and complications are reduced.

[0059] In the description of the present invention, it should be noted that the positional or positional relationship indicated by terms such as "upper", "lower", "one side", "the other side", "one end", "the other end", "side", "opposite", "four corners", "periphery", "square-shaped structure" is based on the positional or positional relationship shown in the accompanying drawings, which is only for facilitating the description of the present invention and simplifying the description, rather than indicating or implying that the indicated structure must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0060] In the description of embodiments of the present invention, unless otherwise expressly specified and limited, terms such as "connection", "direct connection", "indirect connection", "fixed connection", "mounting", "assembly" should be understood in a broad sense. For example, it may be a fixed connection, or a detachable connection, or an integrated connection; the terms "mounting", "connection", "fixed connection" may be directly connected, or indirectly connected through an intermediate medium, or may be an internal connection between two elements. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0061] Although the embodiments disclosed in the present invention are as above, the content described is only the embodiments adopted for facilitating understanding of the present invention, and is not intended to limit the present invention. Any person skilled in the art to which the present invention pertains can make any modifications and changes in the form and details without departing from the spirit and scope disclosed by the present invention, but the scope of patent protection of the present invention shall still be determined by the appended claims.

Claims

1. A needle loading device, characterized in that, include: The base is provided with a fixing part and a stop part at intervals; and A handle is located between the fixed part and the stop part and is hinged to the machine base. A pressing part protrudes from the side of the handle facing the stop part. The needle loading device also includes a mounting part and a mating part. The mounting component has a through first needle hole, and the mating component has a through second needle hole. The mounting component and the mating component are placed between the holding part and the stop part. The needle body of the surgical needle passes through the mating component and the mounting component and is fixed to the fixing part. The handle is driven to move, so that the holding part moves toward the stop part. The mounting component and the mating component are pressed and connected between the holding part and the stop part, and the needle body is clamped.

2. The needle loading device according to claim 1, characterized in that, The mounting component has a mating part, and the mating component has an insertion part. The insertion part is inserted into the mating part, and the mating part squeezes the insertion part to clamp the needle body.

3. The needle loading device according to claim 2, characterized in that, The insertion part is a conical protrusion, the mating part is a conical hole, and the peripheral wall of the conical protrusion has a notch, with the opening end of the notch facing the conical hole.

4. The needle loading device according to claim 3, characterized in that, The notches include multiple notches, which are spaced apart circumferentially on the conical protrusion.

5. The needle loading device according to claim 2, characterized in that, One of the insertion part and the mating part is provided with a first snap-fit ​​part and the other is provided with a second snap-fit ​​part. The first snap-fit ​​part and the second snap-fit ​​part are snap-fitted together to keep the insertion part holding the needle body.

6. The needle loading device according to claim 2, characterized in that, One of the insertion part and the mating part is provided with a third snap-fit ​​part and the other is provided with a fourth snap-fit ​​part. The third snap-fit ​​part and the fourth snap-fit ​​part are snap-fitted together to achieve pre-positioning of the insertion part and the mating part.

7. The needle loading device according to claim 1, characterized in that, The fixing part is an elastic clip, the peripheral wall of the mounting part is provided with transmission teeth, and the pressing part includes two sets, which are located on both sides of the axis of the first needle hole.

8. The needle loading device according to any one of claims 1 to 7, characterized in that, Also includes: The push block is located between the pressing part and the stop part, and can move toward and away from the stop part; The handle is driven to move, the pressing part moves toward the stop part and pushes the push block toward the stop part, the mounting part and the mating part are pressed between the push block and the stop part and connected to each other, and clamp the needle body.

9. The needle loading device according to claim 8, characterized in that, Also includes: A reset spring is installed in conjunction with the push block. Specifically, the handle is driven to reset, the pressing part moves away from the stop part, and the reset spring drives the push block to move away from the stop part to reset.

10. The needle loading device according to any one of claims 1 to 7, characterized in that, Also includes: A slider is mounted on the base, and the fixing part is located between the slider and the handle. The slider can move toward and away from the fixing part.

11. A puncture device, characterized in that, Includes the needle loading device as described in any one of claims 1 to 10.

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