A device for lumbar puncture anesthesia and analgesia using an intraspinal indwelling needle

Abstract

The present application provides a device for lumbar puncture anesthesia and analgesia with an intraspinal indwelling needle, the indwelling needle comprises a needle holding isolation part, the bottom end of the needle holding isolation part is connected to a catheter, a steel needle tube wall is penetrated by the inner side of the needle holding isolation part and the catheter, a steel needle column is penetrated by the inner side of the steel needle tube wall, a limiting rebound part is provided at the position where the upper and lower ends of the steel needle tube wall are connected to the steel needle column, the steel needle column is rotatably connected to the inner side of the steel needle tube wall through the limiting rebound part, and a two-way blocking part is provided at the connection position between the sharp end of the bottom of the steel needle tube wall and the catheter; the present invention uses the two-way blocking part to ensure that the catheter stably enters the patient's body when following the steel needle into the patient's body, thereby improving the success rate of puncture use of the indwelling needle, and at the same time, the outer wall of the catheter can be opened after the catheter puncture is completed or before the puncture, so that when the anesthetic analgesic agent is transported inside the catheter, the patient's puncture position can be injected with multiple depths at the same time, thereby accelerating the effects of anesthesia and analgesia.

Description

Technical Field

[0001] The invention relates to the field of medical devices, in particular to a device for using an intraspinal indwelling needle for lumbar puncture anesthesia and analgesia. Background Art

[0002] A spinal canal catheter usually refers to a catheter left in place after puncture in the spinal canal. This operation is mainly used for anesthesia, analgesia, diagnosis and treatment of various diseases, such as headache, abnormal cerebrospinal fluid pressure, spinal pain, etc. When performing spinal puncture, it is crucial to choose the appropriate puncture needle and model and strictly adhere to the principles of aseptic operation to reduce the risk of infection and complications.

[0003] The use of a spinal puncture catheter requires the use of the steel needle of the catheter to drive the catheter into the patient's spinal canal. Spinal puncture is used for anesthesia and analgesia. This type of needle puncture is generally a muscle puncture. During the needle puncture process, the steel needle is required to drive the catheter to puncture the muscle into the patient's spinal canal. However, during traditional needle puncture, the end of the catheter and the steel needle are slidingly connected, which will cause the catheter to be resisted by the muscle and unable to follow the steel needle into the inner side of the catheter inside the patient's muscle. In addition, anesthesia and analgesia require the injection of anesthetics at multiple depths at the puncture site. Existing spinal needles cannot inject drugs at multiple depths at the puncture site.

[0004] Therefore, we have made improvements on this and proposed a device with an intraspinal needle for lumbar puncture anesthesia and analgesia. Summary of the invention

[0005] The purpose of the present invention is to solve the problem that the existing indwelling needle catheter is difficult to follow the steel needle into the patient's body due to resistance and the indwelling needle cannot inject medicine at multiple depths of the puncture position.

[0006] In order to achieve the above-mentioned purpose of the invention, the present invention provides the following device for using an intraspinal indwelling needle for lumbar puncture anesthesia and analgesia to improve the above-mentioned problem.

[0007] The specific application is as follows:

[0008] A device for lumbar puncture anesthesia and analgesia, the indwelling needle comprises a needle holding isolation part, the bottom end of the needle holding isolation part is connected to a catheter, a steel needle tube wall is penetrated inside the needle holding isolation part and the catheter, a steel needle column is penetrated inside the steel needle tube wall, a limiting rebound part is provided at the position where the upper and lower ends of the steel needle tube wall are connected to the steel needle column, the steel needle column is rotatably connected to the inner side of the steel needle tube wall through the limiting rebound part, a two-way blocking part is provided at the position where the sharp end of the bottom of the steel needle tube wall is connected to the catheter, The catheter is limited and clamped on the outer wall of the steel needle tube through a two-way blocking part. The steel needle column is located at a section of the outer wall inside the steel needle tube wall, which is transmission-connected with tube wall opening parts arranged equidistantly. A tube wall piercing part is provided on the upper side of the position where the steel needle column is connected to the tube wall opening part. The tube wall opening part and the tube wall piercing part are both fixed on the inner wall of the steel needle tube wall. The tube wall opening part and the tube wall piercing part are transmission-connected to the steel needle column. When the steel needle column is in the reverse rotation state, the output ends of the tube wall opening part and the tube wall piercing part extend to the outside of the steel needle tube wall.

[0009] As a preferred technical solution of the present application, an opening hole and a puncture hole are provided at the position where the steel needle tube wall connects the tube wall opening piece and the tube wall puncture piece. When the steel needle column is in the reverse rotation state, the output ends of the tube wall opening piece and the tube wall puncture piece are penetrated on the outside of the opening hole and the puncture hole. A C-shaped groove and an annular groove are respectively provided at the position where the steel needle column connects the tube wall opening piece and the tube wall puncture piece. One end of the tube wall opening piece is located on the inner side of the C-shaped groove and is transmission-connected to the steel needle column. One end of the tube wall puncture piece is located on the inner side of the annular groove and is transmission-connected to the steel needle column. The top end of the steel needle column is penetrated on the outside of the top of the needle holding isolation part, and the top end of the steel needle column is connected to the needle holding handle.

[0010] As a preferred technical solution of the present application, the bidirectional blocking part includes a separation vertical groove, which is opened on the outer surface of the bottom end of the steel needle tube wall. The bottom of the separation vertical groove is connected to the outside of the bottom end of the steel needle tube wall. The top of the separation vertical groove is connected to a blocking horizontal groove. A blocking block is fixed at the bottom of the position where the catheter is connected to the steel needle tube wall, and the blocking block is embedded and slides inside the separation vertical groove and the blocking horizontal groove.

[0011] As a preferred technical solution of the present application, the limit rebound part includes a C-shaped rotating groove, which is opened at the upper and lower ends of the inner wall of the steel needle tube, and a C-end limit block is fixed on the inner side of the C-shaped rotating groove away from the steel needle column, and the C-end limit block is fixed to one side of the inner part of the C-shaped rotating groove, and the side of the C-shaped rotating groove away from the C-end limit block is rotatably connected to a limit plate, one side of the limit plate fits and slides on the surface of the C-end limit block, and a limit slider is fixed on the side of the limit plate connected to the C-end limit block, and the limit slider is fit with the C-end limit block, and a reset spring is connected to the inner side of a side of the C-end limit block facing away from the limit slider, and the other end of the reset spring abuts against the outer surface of the limit slider, and the upper and lower ends of the steel needle column are fixed at the center of the limit plate.

[0012] As a preferred technical solution of the present application, the tube wall opening piece includes an opening transmission rod, the opening transmission rod is arranged in the middle of the opening hole, the end of the opening transmission rod away from the opening hole is limitedly connected with a first limiting ring, the outside of the first limiting ring is sleeved with an opening conical column, the other end of the opening conical column is fixed to the inner wall of the steel needle tube wall, the opening transmission rod is internally connected with an opening driven rod for transmission, the end of the inner side of the opening transmission rod close to the first limiting ring is fixed with a first meshing rod that is symmetrically connected, the first meshing rod meshes with the outer wall of the opening driven rod for transmission, the end of the opening transmission rod away from the first limiting ring is fixed with a first transmission gear, a driving toothed disk is fixed in the middle of the top surface of the C-shaped groove, the driving toothed disk meshes with the first transmission gear for transmission, the end of the opening driven rod away from the opening transmission rod is limitedly slid inside the opening conical column, and when the opening transmission rod is rotated, the end of the opening driven rod slides to the outside of the opening hole.

[0013] As a preferred technical solution of the present application, a first positioning groove is provided at one end of the open conical column connected to the first limiting ring, and the first limiting ring is limited to rotate on the inner side of the first positioning groove, and a ring knife sliding groove is provided on the side of the open conical column away from the first positioning groove, and the ring knife sliding groove is connected to the opening hole, and the end of the open driven rod away from the open transmission rod is limited to slide on the inner side of the ring knife sliding groove.

[0014] As a preferred technical solution of the present application, a first thread groove is provided on the outer wall of one end of the opening driven rod located inside the opening transmission rod, and the end of the first engaging rod is engaged with the inner side of the first thread groove, and a ring knife fixing block is connected to the end of the opening driven rod away from the first thread groove, and symmetrical sliding limit blocks are fixed on both sides of the ring knife fixing block, and the ring knife fixing block and the sliding limit blocks slide within the ring knife sliding groove, and a ring knife is fixed on the end of the ring knife fixing block away from the opening driven rod, and the ring knife slides at the center of the ring knife sliding groove, and when the opening transmission rod is rotated, the ring knife slides horizontally to the outside of the opening hole, and a avoidance groove is provided at the bottom of the ring knife.

[0015] As a preferred technical solution of the present application, the tube wall piercing device includes a piercing conical column, one end of the piercing conical column is fixed to the inner wall of the steel needle tube wall, and a second positioning groove is provided on the inner side of the other end of the piercing conical column, and a piercing rod sliding groove is provided on the inner side of one side of the piercing conical column connected to the steel needle tube wall, and the piercing rod sliding groove is connected to the piercing hole, and a piercing transmission rod is connected to the inner side of the second positioning groove for limited rotation, and the end of the piercing transmission rod away from the piercing conical column is penetrated in the middle of the annular groove, and a driving gear ring is provided on the top surface of the annular groove, and the driving gear ring is meshed with the end of the piercing transmission rod for transmission, and a piercing driven rod is penetrated on the inner side of the piercing transmission rod, and the end of the piercing driven rod located inside the piercing transmission rod is meshed with the inner wall of the piercing transmission rod for transmission, and the end of the piercing driven rod away from the piercing transmission rod is limited and slid on the inner side of the piercing conical column.

[0016] As a preferred technical solution of the present application, a second limiting ring is fixed to one end of the puncture transmission rod connected to the second positioning groove, and the second limiting ring is limited to rotate on the inner side of the second positioning groove. A symmetrical second engaging rod is fixed to the inner wall of one end of the puncture transmission rod connected to the second limiting ring, and the second engaging rod is engaged with the puncture driven rod for transmission. A second transmission gear is fixed to the end of the puncture transmission rod away from the second limiting ring, and the second transmission gear is engaged with the driving gear ring.

[0017] As a preferred technical solution of the present application, a section of the outer wall of the puncture driven rod is penetrated by the puncture transmission rod and is provided with a second thread groove, the second engaging rod is engaged with the inner side of the second thread groove, a puncture rod limiting block is fixed to the end of the puncture driven rod away from the second thread groove, the second thread groove is limited and slides on the inner side of the puncture rod sliding groove, a puncture rod is fixed at the center of a side of the puncture rod limiting block away from the puncture driven rod, and the puncture rod slides horizontally to the outside of the puncture hole when the puncture transmission rod is rotated.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] In the scheme of the present application: by providing a two-way blocking portion at the connection between the sharp end of the steel needle and the catheter, the catheter and the steel needle can be engaged and blocked to limit the position, so that the catheter can withstand greater resistance when following the steel needle into the patient's body, stably enter the patient's body, and improve the success rate of puncture use of the indwelling needle. At the same time, multiple tube wall opening parts and tube wall puncture parts are provided inside the steel needle. The outer wall of the catheter can be opened after the catheter puncture is completed or before the puncture, so that when the anesthetic analgesic agent is transported inside the catheter, multiple depth injections can be performed on the patient's puncture site at the same time, thereby accelerating the effects of anesthesia and analgesia.

[0020] 1. The present invention divides the steel needle into two parts, namely the steel needle tube wall and the steel needle column, so that the steel needle column can drive the inside of the steel needle tube wall, thereby realizing the lateral opening and puncture functions of the steel needle. Before the indwelling needle is used or after the puncture is completed, the catheter punctured into the patient's body by the indwelling needle can be opened laterally, thereby realizing the indwelling needle has the function of multi-depth injection of medicines, and the opening hole and the puncture hole can be freely operated and controlled to realize the adjustment of the opening size of the outer wall of the catheter.

[0021] 2. The present invention provides a bidirectional blocking portion at the position where the sharp end of the bottom of the steel needle tube wall is connected to the end of the catheter, so that the catheter can be locked and limited with the end of the steel needle tube wall through the blocking block. During the steel needle puncture process, the locking resistance of the blocking block locked in the blocking transverse groove can prevent the catheter from sliding to the bottom of the steel needle tube wall due to resistance, thereby ensuring that the steel needle can stably drive the catheter into the patient's body during puncture.

[0022] 3. The present invention provides limiting rebound parts at both ends of the connection position between the steel needle tube wall and the steel needle column. The limiting rebound parts can limit the steel needle column in the vertical and horizontal directions when the steel needle column is operated and rotated, so as to prevent the steel needle column from being separated from the steel needle tube wall. At the same time, the rotation angle of the rotating steel needle column is limited, and the elastic force for restoring the rotated steel needle column is provided.

[0023] 4. In the present invention, the outer wall of the steel needle column is transmission-connected with equidistantly arranged tube wall opening parts fixed on the inner wall of the steel needle tube wall. When the steel needle column rotates, the opening driven rod inside the tube wall opening parts drives the annular knife to slide horizontally to the outside of the steel needle tube wall, thereby cutting an opening of the catheter, thereby realizing the function of multiple depths and multiple openings on the outer wall of the catheter, so that the catheter can have the function of injecting medicines at multiple depths.

[0024] 5. The present invention provides a tube wall puncturing piece at the upper part of the position where the steel needle column is connected to the tube wall opening piece, so that when the steel needle column rotates, it can first drive the tube wall puncturing piece to puncture and open a hole in the catheter wall before driving the tube wall opening piece, so that the part of the catheter puncturing into the patient's body can have puncture holes of multiple depths, and the drug can be injected into the patient's body at multiple depths.

[0025] 6. The present invention can simultaneously drive and connect the steel needle column with the tube wall opening piece and the tube wall puncture piece, so that the catheter can have two opening modes. The two openings have apertures of different sizes and can be suitable for a variety of anesthetic and analgesic drug injection environments. In addition, full driving can simultaneously open two holes in the catheter to ensure that the catheter can have sufficient drug delivery volume and inject to various depths of the patient's puncture position. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A schematic structural diagram of a preferred embodiment of a device for lumbar puncture anesthesia and analgesia using an intraspinal indwelling needle provided by the present invention;

[0027] Figure 2 for Figure 1 The schematic diagram of the decomposition of the steel needle wall structure inside the catheter is shown;

[0028] Figure 3 for Figure 1 The enlarged schematic diagram of the structure of the bottom end of the catheter shown;

[0029] Figure 4 for Figure 3 The schematic diagram of the structure in which the catheter is separated from the wall of the steel needle;

[0030] Figure 5 for Figure 4 The structure of the bidirectional blocking portion is shown in an exploded and enlarged schematic cross-sectional view;

[0031] Figure 6 for Figure 2 The schematic diagram of the structure decomposition and enlargement inside the steel needle tube wall shown;

[0032] Figure 7 for Figure 6 The structural exploded and enlarged schematic diagram of the middle part of the steel needle column shown;

[0033] Figure 8 for Figure 7 The enlarged schematic diagram of the structure of the pipe wall opening position shown;

[0034] Fig. 9 for Figure 8 The structural section exploded schematic diagram of the tube wall opening member shown;

[0035] Fig.10 for Fig. 9 The side view structure of the tube wall opening piece is shown as an exploded enlarged cross-sectional view;

[0036] Fig.11 for Figure 7 An enlarged schematic diagram of the structure of the tube wall piercing member position shown;

[0037] Fig.12 for Fig.11 The structure of the tube wall piercing member is shown in an exploded and enlarged schematic diagram.

[0038] Indicated in the figure:

[0039] 1. Needle holder isolation part; 11. Transparent tee; 12. Extension tube; 13. Y-type conical connector; 14. Single-end protective cap; 15. Heparin cap;

[0040] 2. Catheter;

[0041] 3. Steel needle tube wall; 31. Opening hole; 32. Puncture hole; 33. Needle handle;

[0042] 30, steel needle column; 301, C-shaped groove; 302, annular groove;

[0043] 4. Bidirectional blocking portion; 41. Separation vertical groove; 42. Blocking horizontal groove; 43. Blocking block;

[0044] 5. Limiting rebound part; 51. C-shaped rotating groove; 52. C-end limiting block; 53. Limiting plate; 54. Limiting slider; 55. Return spring;

[0045] 6. Tube wall opening member; 61. Opening transmission rod; 611. First limiting ring; 612. First meshing rod; 613. First transmission gear; 62. Opening conical column; 621. Ring knife sliding groove; 622. First positioning groove; 63. Opening driven rod; 631. First thread groove; 632. Ring knife fixing block; 633. Sliding limiting block; 634. Ring knife; 635. Avoidance groove; 64. Driving gear plate;

[0046] 7. Piercing member for the tube wall; 71. Piercing conical column; 711. Piercing rod sliding groove; 712. Second positioning groove; 72. Piercing transmission rod; 721. Second limiting ring; 722. Second meshing rod; 723. Second transmission gear; 73. Piercing driven rod; 731. Second threaded groove; 732. Piercing rod limiting block; 733. Piercing rod; 74. Driving gear ring. DETAILED DESCRIPTION

[0047] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0048] As described in the background art, the indwelling needle catheter is difficult to follow the steel needle into the patient's body due to resistance, and the indwelling needle cannot inject drugs at multiple depths of the puncture site.

[0049] In order to solve this technical problem, the present invention provides a device for anesthesia and analgesia of lumbar puncture with an intraspinal catheter, which is used to ensure that the catheter of the intraspinal needle stably follows the steel needle into the patient's body, and to inject anesthetics and other analgesics to multiple depths of the puncture site.

[0050] Specifically, please refer to Figure 1-Figure 12 The device for lumbar puncture anesthesia and analgesia with a spinal canal indwelling needle specifically comprises:

[0051] The indwelling needle includes a needle holding isolation part 1, the bottom end of the needle holding isolation part 1 is connected to a catheter 2, a steel needle tube wall 3 is penetrated inside the needle holding isolation part 1 and the catheter 2, a steel needle column 30 is penetrated inside the steel needle tube wall 3, a limiting rebound part 5 is provided at the position where the upper and lower ends of the steel needle tube wall 3 are connected to the steel needle column 30, the steel needle column 30 is rotatably connected to the inner side of the steel needle tube wall 3 through the limiting rebound part 5, a two-way blocking part 4 is provided at the position where the sharp end of the bottom of the steel needle tube wall 3 is connected to the catheter 2, and the catheter 2 is limited by the two-way blocking part 4 The steel needle column 30 is located on a section of the outer wall of the steel needle tube wall 3, and is transmission-connected to an equidistantly arranged tube wall opening piece 6. A tube wall piercing piece 7 is provided on the upper side of the position where the steel needle column 30 is connected to the tube wall opening piece 6. The tube wall opening piece 6 and the tube wall piercing piece 7 are both fixed on the inner wall of the steel needle tube wall 3. The tube wall opening piece 6 and the tube wall piercing piece 7 are transmission-connected to the steel needle column 30. When the steel needle column 30 is in the reverse rotation state, the output ends of the tube wall opening piece 6 and the tube wall piercing piece 7 extend to the outside of the steel needle tube wall 3.

[0052] The present invention provides a device for lumbar puncture anesthesia and analgesia using an intraspinal catheter. The bidirectional blocking portion 4 provided at the connection between the sharp end of the steel needle and the catheter 2 can allow the catheter 2 to engage with the steel needle to block and limit, so that the catheter 2 can withstand greater resistance when following the steel needle into the patient's body, stably enter the patient's body, and improve the success rate of puncture using the catheter. At the same time, a plurality of tube wall opening members 6 and tube wall puncture members 7 are provided inside the steel needle, and the outer wall of the catheter 2 can be opened after the puncture of the catheter 2 is completed or before the puncture, so that when the anesthetic analgesic agent is transported inside the catheter 2, the patient's puncture position can be injected at multiple depths at the same time, thereby accelerating the effects of anesthesia and analgesia.

[0053] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings.

[0054] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0055] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0056] Example 1

[0057] Please refer to Figure 1-Figure 12A device for lumbar puncture anesthesia and analgesia with an intraspinal needle, wherein an opening hole 31 and a puncture hole 32 are provided at the position where the steel needle tube wall 3 connects the tube wall opening piece 6 and the tube wall puncture piece 7, and when the steel needle column 30 is in the reverse rotation state, the output ends of the tube wall opening piece 6 and the tube wall puncture piece 7 are penetrated on the outside of the opening hole 31 and the puncture hole 32, and a C-shaped groove 301 and an annular groove 302 are respectively provided at the position where the steel needle column 30 connects the tube wall opening piece 6 and the tube wall puncture piece 7, one end of the tube wall opening piece 6 is located on the inner side of the C-shaped groove 301 and is transmission-connected to the steel needle column 30, and one end of the tube wall puncture piece 7 is located on the inner side of the annular groove 302 and is transmission-connected to the steel needle column 30, and the top end of the steel needle column 30 is penetrated on the outside of the top of the needle holding isolation part 1, and the top end of the steel needle column 30 is connected to the needle holding handle 33.

[0058] The steel needle is divided into two parts, a steel needle tube wall 3 and a steel needle column 30, so that the steel needle column 30 can drive the inside of the steel needle tube wall 3, thereby realizing the lateral opening and puncture functions of the steel needle. Before the use of the indwelling needle or after the puncture is completed, the indwelling needle can be opened laterally on the catheter 2 that punctures the patient's body, thereby realizing the indwelling needle has the function of multi-depth injection of drugs, and the opening hole 31 and the puncture hole 32 can be freely operated and controlled to realize the adjustment of the opening size of the outer wall of the catheter 2.

[0059] Example 2

[0060] The device for lumbar puncture anesthesia and analgesia using a spinal canal indwelling needle provided in Example 1 is further optimized. Specifically, Figure 1-Figure 12 The bidirectional blocking part 4 includes a separation vertical groove 41, which is opened on the outer surface of the bottom end of the steel needle tube wall 3. The bottom of the separation vertical groove 41 is connected to the outer side of the bottom end of the steel needle tube wall 3. The top of the separation vertical groove 41 is connected to a blocking transverse groove 42. A blocking block 43 is fixed at the bottom of the position where the catheter 2 connects to the steel needle tube wall 3. The blocking block 43 is embedded and slides inside the separation vertical groove 41 and the blocking transverse groove 42.

[0061] A bidirectional blocking portion 4 is provided at the position where the sharp end of the bottom of the steel needle tube wall 3 is connected to the end of the catheter 2, so that the catheter 2 can be engaged and limited with the end of the steel needle tube wall 3 through the blocking block 43. During the steel needle puncture process, the engagement resistance of the blocking block 43 engaged in the blocking transverse groove 42 can prevent the catheter 2 from sliding to the bottom of the steel needle tube wall 3 due to resistance, thereby ensuring that the steel needle can stably drive the catheter 2 into the patient's body during puncture.

[0062] Example 3

[0063] The device for lumbar puncture anesthesia and analgesia using a spinal canal indwelling needle provided in Example 1 or 2 is further optimized. Specifically, Figure 1-Figure 12As shown, the limit rebound portion 5 includes a C-shaped rotating groove 51, and the C-shaped rotating groove 51 is opened at the upper and lower ends of the steel needle tube wall 3. A C-end limit block 52 is fixed on the inner side of the C-shaped rotating groove 51 away from the steel needle column 30, and the C-end limit block 52 is fixed to one side of the inside of the C-shaped rotating groove 51. The side of the C-shaped rotating groove 51 away from the C-end limit block 52 is rotatably connected to a limit plate 53, and one side of the limit plate 53 slides on the surface of the C-end limit block 52, and a limit slider 54 is fixed on the side of the limit plate 53 connected to the C-end limit block 52, and the limit slider 54 is fitted with the C-end limit block 52, and a return spring 55 is connected to the inner side of the side of the C-end limit block 52 away from the limit slider 54, and the other end of the return spring 55 abuts against the outer surface of the limit slider 54, and the upper and lower ends of the steel needle column 30 are fixed at the center of the limit plate 53.

[0064] Limiting rebound parts 5 are provided at both ends of the connection position between the steel needle tube wall 3 and the steel needle column 30. The limiting rebound parts 5 can limit the steel needle column 30 in the vertical and horizontal directions when the steel needle column 30 is operated and rotated, thereby preventing the steel needle column 30 from being separated from the steel needle tube wall 3, and at the same time limit the rotation angle of the rotating steel needle column 30 and provide a restoring elastic force for the rotated steel needle column 30.

[0065] Example 4

[0066] The device for lumbar puncture anesthesia and analgesia with a spinal canal indwelling needle provided in Examples 1-3 is further optimized. Specifically, Figure 1-Figure 12 As shown, the tube wall opening member 6 includes an opening transmission rod 61, the opening transmission rod 61 is inserted into the middle of the opening hole 31, the end of the opening transmission rod 61 away from the opening hole 31 is limitedly connected with a first limiting ring 611, the outer side of the first limiting ring 611 is sleeved with an opening conical column 62, the other end of the opening conical column 62 is fixed to the inner wall of the steel needle tube wall 3, the opening transmission rod 61 is internally connected with an opening driven rod 63, and the end of the inner side of the opening transmission rod 61 close to the first limiting ring 611 is fixed with a first engaging rod symmetrically connected 612, the first engaging rod 612 is meshed with the outer wall of the opening driven rod 63 for transmission, the first transmission gear 613 is fixed to the end of the opening transmission rod 61 away from the first limiting ring 611, and a driving gear plate 64 is fixed to the middle of the top surface of the C-shaped groove 301, and the driving gear plate 64 is meshed with the first transmission gear 613 for transmission, and the end of the opening driven rod 63 away from the opening transmission rod 61 is limited and slid inside the opening conical column 62, and when the opening transmission rod 61 is in the rotating state, the end of the opening driven rod 63 slides to the outside of the opening hole 31.

[0067] A first positioning groove 622 is provided at one end of the open conical column 62 connected to the first limiting ring 611, and the first limiting ring 611 is limited to rotate on the inner side of the first positioning groove 622. A ring knife sliding groove 621 is provided on the side of the open conical column 62 away from the first positioning groove 622, and the ring knife sliding groove 621 is connected to the opening hole 31. The end of the open driven rod 63 away from the open transmission rod 61 is limited to slide on the inner side of the ring knife sliding groove 621.

[0068] The outer wall of one end of the opening driven rod 63 located inside the opening transmission rod 61 is provided with a first thread groove 631, and the end of the first engaging rod 612 is engaged with the inner side of the first thread groove 631, and the end of the opening driven rod 63 away from the first thread groove 631 is connected to a ring knife fixing block 632, and symmetrical sliding limit blocks 633 are fixed on both sides of the ring knife fixing block 632. The ring knife fixing block 632 and the sliding limit blocks 633 are limited to slide on the inner side of the ring knife sliding groove 621, and an annular knife 634 is fixed on the end of the ring knife fixing block 632 facing away from the opening driven rod 63, and the annular knife 634 slides at the center of the ring knife sliding groove 621. When the opening transmission rod 61 is rotated, the annular knife 634 slides horizontally to the outside of the opening hole 31, and a avoidance groove 635 is provided at the bottom of the annular knife 634.

[0069] The outer wall of the steel needle column 30 is transmission-connected with equidistantly arranged tube wall opening pieces 6 fixed on the inner wall of the steel needle tube wall 3. When the steel needle column 30 rotates, it can drive the opening follower rod 63 inside the tube wall opening piece 6 to drive the annular knife 634 to slide horizontally to the outside of the steel needle tube wall 3, thereby cutting an opening of the catheter 2, thereby realizing the function of multiple depths and multiple openings on the outer wall of the catheter 2, so that the catheter 2 can have the function of injecting medicines at multiple depths.

[0070] Example 5

[0071] The device for lumbar puncture anesthesia and analgesia with a spinal canal indwelling needle provided in Examples 1-4 is further optimized. Specifically, Figure 1-Figure 12As shown, the tube wall piercing member 7 includes a piercing conical column 71, one end of the piercing conical column 71 is fixed to the inner wall of the steel needle tube wall 3, and the other end of the piercing conical column 71 is provided with a second positioning groove 712 on the inner side, and a piercing rod sliding groove 711 is provided on the inner side of a side of the piercing conical column 71 connected to the steel needle tube wall 3, and the piercing rod sliding groove 711 is connected to the piercing hole 32, and the inner side of the second positioning groove 712 is limitedly rotatably connected to the piercing transmission rod 72, and the piercing transmission rod 72 is away from the piercing hole 32. One end of the puncture conical column 71 is penetrated in the middle of the annular groove 302, and a driving gear ring 74 is provided on the top surface of the annular groove 302. The driving gear ring 74 is meshed with the end of the puncture transmission rod 72 for transmission. A puncture driven rod 73 is penetrated on the inner side of the puncture transmission rod 72. One end of the puncture driven rod 73 located inside the puncture transmission rod 72 is meshed with the inner wall of the puncture transmission rod 72 for transmission. One end of the puncture driven rod 73 away from the puncture transmission rod 72 is limitedly slid on the inner side of the puncture conical column 71.

[0072] A second limiting ring 721 is fixed to one end of the puncture transmission rod 72 connected to the second positioning groove 712, and the second limiting ring 721 limits rotation inside the second positioning groove 712. A symmetrical second meshing rod 722 is fixed to the inner wall of one end of the puncture transmission rod 72 connected to the second limiting ring 721, and the second meshing rod 722 meshes with the puncture driven rod 73 for transmission. A second transmission gear 723 is fixed to one end of the puncture transmission rod 72 away from the second limiting ring 721, and the second transmission gear 723 meshes with the driving gear ring 74.

[0073] The puncture driven rod 73 is penetrated through a section of the outer wall inside the puncture transmission rod 72 and is provided with a second thread groove 731. The second engaging rod 722 is engaged with the inner side of the second thread groove 731. A puncture rod limiting block 732 is fixed to the end of the puncture driven rod 73 away from the second thread groove 731. The second thread groove 731 is limited and slides on the inner side of the puncture rod sliding groove 711. A puncture rod 733 is fixed to the center of a side of the puncture rod limiting block 732 away from the puncture driven rod 73. When the puncture transmission rod 72 is in a rotating state, the puncture rod 733 slides horizontally to the outside of the puncture hole 32.

[0074] A tube wall puncture piece 7 is provided on the upper part of the position where the steel needle column 30 is connected to the tube wall opening piece 6, so that when the steel needle column 30 rotates, it can first drive the tube wall puncture piece 7 to puncture and open a hole in the tube wall of the catheter 2 before driving the tube wall opening piece 6, so that the part of the catheter 2 that punctures into the patient's body can have puncture holes 32 of multiple depths, and the drug can be injected into the patient's body at multiple depths.

[0075] Working steps:

[0076] The first way of using: take out the indwelling needle, rotate the needle holding handle 33 in the opposite direction, drive the steel needle column 30 to rotate, the steel needle column 30 rotates and the limit plates 53 connected at both ends follow the rotation, the limit plate 53 rotates the limit slider 54 on its outer wall, the limit slider 54 rotates in a circular shape, thereby pushing the reset spring 55, the other end of the reset spring 55 applies a thrust to the C-end limit block 52, the C-end limit block 52 is forced to push the steel needle tube wall 3, the steel needle tube wall 3 is forced to make the end of the blocking horizontal groove 42 away from the separation vertical groove 41 apply a thrust to the blocking block 43, the rotational force applied by the steel needle column 30 is transmitted to the catheter 2, the catheter 2 is in a fixed state, so the steel needle column 30 rotates, driving the C-shaped groove 301 and the annular groove 302 in the middle to rotate, and the driving gear plate 64 and the driving gear ring 74 fixed inside the C-shaped groove 301 and the annular groove 302 rotate.

[0077] The driving gear disc 64 drives the first transmission gear 613 meshing with it to rotate, and the first transmission gear 613 drives the opening transmission rod 61 to limit the rotation inside the opening conical column 62. During the rotation of the opening transmission rod 61, the opening conical column 62 is used as a support point to maintain the stability of its own structural drive. When the opening transmission rod 61 rotates, the opening driven rod 63 penetrated therein is driven by the meshing of the first meshing rod 612 and the first threaded groove 631. Since the ring knife fixing block 632 and the sliding limit block 633 connected to one end of the opening driven rod 63 limit the sliding inside the ring knife sliding groove 621, the opening transmission rod 61 is When the movable rod 61 rotates, the first engaging rod 612 inside it will drive the opening driven rod 63 to slide horizontally through the first threaded groove 631. When the opening driven rod 63 slides horizontally, it will drive the annular knife 634 at the end of the annular knife fixing block 632 to move, so that the annular knife 634 moves toward the inside of the opening hole 31. When the rotation angle of the steel needle column 30 reaches the maximum, the annular knife 634 will cut an opening on the inner wall of the catheter 2. When the opening is completed, the steel needle column 30 loses the force to rotate, and the reset spring 55 drives the steel needle column 30 to reset, driving the toothed disc 64 to rotate in the opposite direction, and driving the annular knife 634 to shrink to the inside of the opening conical column 62.

[0078] The driving gear ring 74 drives the second transmission gear 723 meshing with it to rotate, and the second transmission gear 723 drives the puncture transmission rod 72 to rotate inside the puncture conical column 71. During the rotation of the puncture transmission rod 72, the puncture conical column 71 is used as a support point to maintain the stability of its own structural drive. When the puncture transmission rod 72 rotates, the puncture driven rod 73 penetrated therein is driven by the meshing of the second meshing rod 722 and the second thread groove 731, and due to the puncture rod limit block 732 connected to one end of the puncture driven rod 73 The limited sliding is on the inner side of the puncture rod sliding groove 711, so the puncture transmission rod 72 rotates, and the second engaging rod 722 inside it will drive the puncture driven rod 73 to slide horizontally through the second threaded groove 731. When the puncture driven rod 73 slides horizontally, it will drive the puncture rod 733 to move to the outside of the puncture hole 32. When the steel needle column 30 rotates half an angle, the puncture rod 733 will penetrate the catheter 2 and complete the opening of the outer wall of the catheter 2. At this time, the annular knife 634 inside the tube wall opening piece 6 is in a position to contact the inner wall of the catheter 2.

[0079] At this time, the indwelling needle catheter 2 will complete multiple depth holes in the outer wall. The needle holding isolation part 1 is held and the catheter 2 and the steel needle tube wall 3 are inserted into the patient's spinal canal. After the catheter 2 completes puncturing the spinal canal, the needle holding handle 33 is rotated forward, so that the limiting sliders 54 on the surfaces of the limiting plates 53 at both ends of the steel needle column 30 and the C-end limiting blocks 52 apply thrust. The C-end limiting block 52 is subjected to the thrust and will push the steel needle tube wall 3 to rotate forward, so that the blocking transverse groove 42 on the outer surface of the steel needle tube wall 3 slides, and the blocking block 43 located inside the blocking transverse groove 42 will move to the inside of the separation vertical groove 41. After the needle holding handle 33 is rotated, the needle holding handle 33 is pulled to make the steel needle tube wall 3 slide out from the inside of the catheter 2, completing the indwelling of the catheter 2 and the use of the catheter 2 for the injection of multiple depth anesthetics and analgesics.

[0080] After the indwelling needle catheter 2 punctures the patient's skin, the extension tube 12 connected to the transparent three-way 11 in the middle of the needle-holding isolation part 1 can be connected to the injection drug pusher through the Y-shaped conical joint to deliver drugs to the inner side of the catheter 2. The device can deliver analgesics or anesthetics to the patient's spinal canal to relieve the patient's lumbar pain or anesthetize the patient. After the drug injection is completed, a heparin cap 15 can be placed at the injection port of the Y-shaped conical joint 13 to seal the injection port for the next use, and the other end of the Y-shaped conical joint 13 is sealed by a single-end protective cap 14, which can be retained for multiple uses.

[0081] The second way of using: directly remove the indwelling needle, hold the needle holding isolation part 1 to puncture the catheter 2 through the steel needle tube wall 3 into the patient's lumbar spinal canal, and then rotate the needle holding handle 33 according to the anesthetic or analgesic drugs that need to be injected. If a small amount of drugs needs to be injected through different depths of puncture, the needle holding handle 33 can be rotated half a circle. If a large amount of drugs needs to be injected at the puncture site, it can be directly rotated to the limit to complete the puncture of the outer wall opening of the catheter 2. The injected drug can be completely in contact with multiple positions of the puncture port to achieve rapid anesthesia treatment.

[0082] When the outer wall opening or the puncture hole 32 of the catheter 2 is completed, the needle holding handle 33 is rotated forward to make the separation vertical groove 41 of the steel needle tube wall 3 parallel to the blocking block 43, and the needle holding handle 33 is pulled to complete the removal of the steel needle and the retention of the catheter 2.

[0083] When the indwelling needle does not need to inject drugs at multiple depths at the puncture site, after the catheter 2 punctures into the patient's lumbar spinal canal, the needle handle 33 can be directly rotated forward to remove the steel needle, thereby completing the indwelling use of the indwelling needle.

[0084] The intraspinal indwelling needle of the present invention is a drug delivery device used for lumbar puncture anesthesia and analgesia.

[0085] It should be noted that the design of the C-shaped groove 301 and the annular groove 302 can allow the tube wall opening piece 6 to have a longer transmission distance than the tube wall piercing piece 7, so that the tube wall piercing piece 7 can pierce the catheter 2 first, and the actual transmission distances of the first thread groove 631 and the second thread groove 731 inside the tube wall opening piece 6 and the tube wall piercing piece 7 are the same, but the piercing rod 733 is shorter than the catheter 2. Therefore, when the steel needle column 30 is rotated, the piercing rod 733 will first pierce the catheter 2. After the piercing rod 733 pierces the catheter 2, the annular knife 634 will contact the inner wall of the catheter 2. When the steel needle column 30 rotates to the limit, the annular knife 634 will completely cut the catheter 2.

[0086] The opening of the avoidance groove 635 allows the annular knife 634 to leave a connection point when cutting the catheter 2, thereby preventing the fragments of the cut catheter 2 from falling into the catheter 2 or the patient's body. When the catheter 2 is taken out, the fragments can be taken out along with the catheter 2. The opening position of the avoidance groove 635 is opposite to the direction in which the catheter 2 transports the drug solution. When the drug solution passes through the fragment position, the drug solution will impact the fragment cutting position, so that the drug solution can be transported through the opening to multiple depths of the patient's puncture position. Therefore, the fragments of the catheter 2 will not block the opening and interior of the catheter 2.

[0087] It should be noted that the forward rotation of the steel needle column 30 will cause the limiting slider 54 on the bottom surface of the limiting plate 53 to directly apply a thrust to the C-end limiting block 52, so that the C-end limiting block 52 drives the steel needle tube wall 3 to rotate, allowing the steel needle tube wall 3 to rotate forward, so that the blocking block 43 engaged in the blocking horizontal groove 42 slides into the separation vertical groove 41. When the blocking block 43 completely slides into the separation vertical groove 41, pulling the needle holding handle 33 can complete the separation of the steel needle tube wall 3 and the steel needle column 30 from the catheter 2.

[0088] When it is necessary to puncture a hole or an opening in the outer wall of the catheter 2, it is necessary to rotate the steel needle column 30 in the opposite direction when the blocking transverse groove 42 of the steel needle tube wall 3 is engaged with the blocking block 43, so that the limiting slider 54 of the limiting plate 53 is separated from the C-end limiting block 52, and the steel needle column 30 is driven to the tube wall opening member 6 and the tube wall puncture member 7 by squeezing the reset spring 55.

[0089] It should be noted that: when the blocking block 43 is located inside the blocking transverse groove 42, the steel needle column 30 rotates in the opposite direction, and the blocking block 43 will apply a rotational force to the side of the blocking transverse groove 42 away from the separation vertical groove 41, and the blocking block 43 is engaged inside the end of the blocking transverse groove 42 away from the separation vertical groove 41, so the blocking block 43 of the catheter 2 can provide a fixed blocking force for the rotation of the steel needle column 30.

[0090] It should be noted that the elastic force of the return spring 55 is smaller than the blocking force of the engagement between the blocking block 43 and the blocking transverse groove 42 .

[0091] The present invention drives and connects the steel needle column 30 to the tube wall opening piece 6 and the tube wall puncture piece 7 at the same time, so that the catheter 2 can have two opening modes. The two openings have apertures of different sizes and can be suitable for a variety of anesthetic and analgesic drug injection environments. In addition, full driving can simultaneously open two holes in the catheter 2 to ensure that the catheter 2 can have a sufficient drug delivery volume and inject to various depths of the patient's puncture position.

[0092] The use process of the device for lumbar puncture anesthesia and analgesia with an intraspinal indwelling needle provided by the present invention is as follows:

[0093] Working principle: take out the indwelling needle, insert the indwelling needle catheter 2 into the patient's lumbar spinal canal through the steel needle, and then if you need to inject medicine at the puncture position, rotate the needle handle 33 in the opposite direction. Here, you can rotate the needle handle 33 according to the amount of medicine you need to inject at the puncture position. When the catheter 2 is pierced or opened, rotate the needle handle 33 forward, pull the needle handle 33, and remove the steel needle to complete the puncture of the indwelling needle. Then, connect the interfaces at both ends of the Y-shaped conical connector 13 through the syringe to inject into the patient's lumbar spinal canal. The medicine, the Y-shaped conical connector 13 after use, is sealed and covered by the heparin cap 15, and the unused part is protected by the single-ended protective cap 14. The injected medicine enters the transparent tee 11 through the extension tube 12, and the medicine entering the transparent tee 11 enters the catheter 2 through the needle holding isolation part 1 and is delivered to the patient's lumbar spinal canal. When the medicine passes through the catheter 2, if the catheter 2 is punctured and opened, a small amount of medicine enters multiple depths of the puncture position, and if the catheter 2 is opened, a large amount of medicine enters multiple depths of the puncture position.

[0094] The remaining amount of the separated medicine enters the end of the catheter 2 and is delivered to the patient's spinal canal.

[0095] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0096] Obviously, the embodiments described above are only some embodiments of the present invention, rather than all embodiments. The preferred embodiments of the present invention are given in the accompanying drawings, but they do not limit the patent scope of the present invention. The present invention can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive. Although the present invention has been described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific embodiments, or to perform equivalent replacements for some of the technical features therein. Any equivalent structure made using the contents of the specification and drawings of the present invention, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the present invention.

Claims

1. A device for lumbar puncture anesthesia and analgesia using a spinal canal indwelling needle, characterized in that: The indwelling needle comprises a needle holding isolation part (1), the bottom end of the needle holding isolation part (1) is connected to a catheter (2), a steel needle tube wall (3) is passed through the inner side of the needle holding isolation part (1) and the catheter (2), a steel needle column (30) is passed through the inner side of the steel needle tube wall (3), a limit rebound part (5) is provided at the position where the upper and lower ends of the steel needle tube wall (3) are connected to the steel needle column (30), the steel needle column (30) is rotatably connected to the inner side of the steel needle tube wall (3) through the limit rebound part (5), a two-way blocking part (4) is provided at the position where the sharp end of the bottom of the steel needle tube wall (3) is connected to the catheter (2), and the catheter (2) is blocked by the two-way blocking part (4) ) is limitedly engaged on the outer wall of the steel needle tube wall (3), the steel needle column (30) is located at a section of the outer wall inside the steel needle tube wall (3) and is transmission-connected with tube wall opening pieces (6) arranged equidistantly, and a tube wall piercing piece (7) is provided on the upper side of the position where the steel needle column (30) is connected to the tube wall opening piece (6), the tube wall opening piece (6) and the tube wall piercing piece (7) are both fixed on the inner wall of the steel needle tube wall (3), the tube wall opening piece (6) and the tube wall piercing piece (7) are transmission-connected with the steel needle column (30), and when the steel needle column (30) is in the reverse rotation state, the output ends of the tube wall opening piece (6) and the tube wall piercing piece (7) extend to the outside of the steel needle tube wall (3); A plurality of tube wall opening members (6) and tube wall puncturing members (7) are provided inside the steel needle, which can open the outer wall of the catheter (2) after or before the puncture of the catheter (2), so that when an anesthetic analgesic agent is delivered inside the catheter (2), multiple depth injections can be performed simultaneously on the patient's puncture site.

2. A device for lumbar puncture anesthesia and analgesia using a spinal canal indwelling needle according to claim 1, characterized in that: An opening hole (31) and a puncture hole (32) are provided at the position where the steel needle tube wall (3) connects the tube wall opening piece (6) and the tube wall puncture piece (7); when the steel needle column (30) is in the reverse rotation state, the output ends of the tube wall opening piece (6) and the tube wall puncture piece (7) are arranged outside the opening hole (31) and the puncture hole (32); a C-shaped groove (301) and an annular groove (302) are provided at the position where the steel needle column (30) connects the tube wall opening piece (6) and the tube wall puncture piece (7), one end of the tube wall opening piece (6) is located inside the C-shaped groove (301) and is transmission-connected to the steel needle column (30); one end of the tube wall puncture piece (7) is located inside the annular groove (302) and is transmission-connected to the steel needle column (30); the top end of the steel needle column (30) is arranged outside the top of the needle holding isolation part (1); and the top end of the steel needle column (30) is connected to a needle holding handle (33).

3. A device for lumbar puncture anesthesia and analgesia using a spinal canal indwelling needle according to claim 1, characterized in that: The bidirectional blocking portion (4) comprises a separation vertical groove (41), the separation vertical groove (41) is provided on the outer surface of the bottom end of the steel needle tube wall (3), the bottom of the separation vertical groove (41) is connected to the outer side of the bottom end of the steel needle tube wall (3), the top of the separation vertical groove (41) is connected to a blocking transverse groove (42), a blocking block (43) is fixed at the bottom of the position where the catheter (2) is connected to the steel needle tube wall (3), and the blocking block (43) is embedded and slidable inside the separation vertical groove (41) and the blocking transverse groove (42).

4. A device for lumbar puncture anesthesia and analgesia using a spinal canal indwelling needle according to claim 1, characterized in that: The limit rebound part (5) comprises a C-shaped rotating groove (51), the C-shaped rotating groove (51) is provided at the upper and lower ends of the steel needle tube wall (3), a C-end limit block (52) is fixed on the inner side of the C-shaped rotating groove (51) away from the steel needle column (30), the C-end limit block (52) is fixed on one side of the inner side of the C-shaped rotating groove (51), and the inner side of the C-shaped rotating groove (51) away from the C-end limit block (52) is rotatably connected to a limit plate (53), and one side of the limit plate (53) is The limit plate (53) is fitted and slid on the surface of the C-end limit block (52); a limit slider (54) is fixed on one side of the limit plate (53) connected to the C-end limit block (52); the limit slider (54) fits the C-end limit block (52); a return spring (55) is connected to the inner side of a side of the C-end limit block (52) away from the limit slider (54); the other end of the return spring (55) abuts against the outer surface of the limit slider (54); the upper and lower ends of the steel needle column (30) are fixed at the center of the limit plate (53).

5. A device for lumbar puncture anesthesia and analgesia using a spinal canal indwelling needle according to claim 2, characterized in that: The tube wall opening member (6) comprises an opening transmission rod (61), the opening transmission rod (61) is passed through the middle of the opening hole (31), one end of the opening transmission rod (61) away from the opening hole (31) is limitedly connected to a first limiting ring (611), an opening conical column (62) is sleeved on the outer side of the first limiting ring (611), the other end of the opening conical column (62) is fixed to the inner wall of the steel needle tube wall (3), the opening transmission rod (61) is internally transmission-connected to an opening driven rod (63), and one end of the inner side of the opening transmission rod (61) close to the first limiting ring (611) is fixedly connected to a symmetrical first meshing rod (61 2), the first meshing rod (612) meshes with the outer wall of the open driven rod (63) for transmission, the end of the open transmission rod (61) away from the first limiting ring (611) is fixed with a first transmission gear (613), a driving toothed disc (64) is fixed in the middle of the top surface of the C-shaped groove (301), the driving toothed disc (64) meshes with the first transmission gear (613) for transmission, the end of the open driven rod (63) away from the open transmission rod (61) is limitedly slid inside the open conical column (62), and when the open transmission rod (61) is in a rotating state, the end of the open driven rod (63) slides to the outside of the opening hole (31).

6. A device for lumbar puncture anesthesia and analgesia using an intraspinal indwelling needle according to claim 5, characterized in that: A first positioning groove (622) is provided at one end of the open conical column (62) connected to the first limiting ring (611); the first limiting ring (611) is limitedly rotated on the inner side of the first positioning groove (622); a ring knife sliding groove (621) is provided on the side of the open conical column (62) away from the first positioning groove (622); the ring knife sliding groove (621) is connected to the opening hole (31); and one end of the open driven rod (63) away from the open transmission rod (61) is limitedly slid on the inner side of the ring knife sliding groove (621).

7. A device for lumbar puncture anesthesia and analgesia using a spinal canal indwelling needle according to claim 6, characterized in that: The outer wall of one end of the opening driven rod (63) located inside the opening transmission rod (61) is provided with a first thread groove (631), the end of the first engagement rod (612) is engaged with the inner side of the first thread groove (631), the end of the opening driven rod (63) away from the first thread groove (631) is connected to a ring knife fixing block (632), symmetrical sliding limit blocks (633) are fixed on both sides of the ring knife fixing block (632), and the ring knife fixing block (632) The sliding limit block (633) slides in a limited manner on the inner side of the ring knife sliding groove (621); an annular knife (634) is fixed to one end of the ring knife fixing block (632) which is away from the opening driven rod (63); the annular knife (634) slides in the center of the ring knife sliding groove (621); when the opening transmission rod (61) is in a rotating state, the annular knife (634) slides horizontally to the outside of the opening hole (31); and an avoidance groove (635) is provided at the bottom of the annular knife (634).

8. The device for lumbar puncture anesthesia and analgesia using a spinal canal indwelling needle according to claim 1, characterized in that: The tube wall piercing member (7) comprises a piercing conical column (71), one end of the piercing conical column (71) is fixed to the inner wall of the steel needle tube wall (3), a second positioning groove (712) is provided on the inner side of the other end of the piercing conical column (71), a piercing rod sliding groove (711) is provided on the inner side of a side of the piercing conical column (71) connected to the steel needle tube wall (3), the piercing rod sliding groove (711) is connected to the piercing hole (32), a piercing transmission rod (72) is connected to the inner side of the second positioning groove (712) for limited rotation, and the piercing transmission rod (72) is away from the piercing hole (32). One end of the conical column (71) is inserted into the middle of the annular groove (302), and a driving toothed ring (74) is provided on the top surface of the annular groove (302). The driving toothed ring (74) is meshed with the end of the puncture transmission rod (72) for transmission. A puncture driven rod (73) is inserted into the inner side of the puncture transmission rod (72), and one end of the puncture driven rod (73) located inside the puncture transmission rod (72) is meshed with the inner wall of the puncture transmission rod (72) for transmission. One end of the puncture driven rod (73) away from the puncture transmission rod (72) is limitedly slid on the inner side of the puncture conical column (71).

9. A device for lumbar puncture anesthesia and analgesia using an intraspinal indwelling needle according to claim 8, characterized in that: A second limiting ring (721) is fixed to one end of the puncture transmission rod (72) connected to the second positioning groove (712), and the second limiting ring (721) is limitedly rotated inside the second positioning groove (712). A symmetrical second meshing rod (722) is fixed to the inner wall of one end of the puncture transmission rod (72) connected to the second limiting ring (721), and the second meshing rod (722) meshes with the puncture driven rod (73) for transmission. A second transmission gear (723) is fixed to one end of the puncture transmission rod (72) away from the second limiting ring (721), and the second transmission gear (723) meshes with the driving gear ring (74).

10. A device for lumbar puncture anesthesia and analgesia using a spinal canal indwelling needle according to claim 9, characterized in that: The puncture driven rod (73) is provided with a second thread groove (731) on a section of the outer wall inside the puncture transmission rod (72), and the second engagement rod (722) is engaged with the inner side of the second thread groove (731). A puncture rod limiting block (732) is fixed to the end of the puncture driven rod (73) away from the second thread groove (731), and the second thread groove (731) is limited and slidable inside the puncture rod sliding groove (711). The puncture rod (733) is fixed at the center of a side of the puncture rod limiting block (732) away from the puncture driven rod (73), and the puncture rod (733) slides horizontally to the outer side of the puncture hole (32) when the puncture transmission rod (72) is in a rotating state.

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