One-handed control of a lumbar puncture assist marker device

Abstract

The application discloses a single-hand control lumbar puncture auxiliary marking device and belongs to the technical field of medical auxiliary equipment. The single-hand control lumbar puncture auxiliary marking device comprises a device body, at least two groups of positioning modules, a marking disinfection module and two groups of glue fixing modules; the positioning module is used for clamping and positioning the human body surface bony mark; the fixing module is arranged at the circumferential position of the device body and is used for forming an adhering fixing point around the puncture area; the marking disinfection module comprises a pressing piece, a connecting piece and a marking piece; the connecting piece is slidingly arranged in a through groove; the pressing piece is detachably embedded in one end of the connecting piece; the marking piece is arranged at the end of the connecting piece away from the pressing piece; the marking disinfection module is internally provided with a liquid storage structure; when the pressing piece is pressed, the marking piece can form a mark on the human body skin surface and release disinfectant through the liquid storage structure; and thus the marking and disinfection of the lumbar puncture point can be realized by single-hand operation.

Description

Technical Field

[0001] This invention belongs to the field of medical auxiliary equipment technology, and more specifically, relates to a single-handed controlled lumbar puncture auxiliary marking device. Background Technology

[0002] Modern lumbar puncture is a technique in which a physician inserts a lumbar puncture needle into the space between the spinous processes of the upper and lower vertebrae (clinically L3-L4, i.e., the 3rd and 4th lumbar vertebrae) (generally 0.8 mm ± 1-2 mm in adults), in conjunction with the patient's lateral flexion position (to maximize the exposure of the space between the lumbar vertebrae), with a perforated drape (to prevent contamination), to perform a series of procedures. Currently, in clinical practice, lumbar puncture in ordinary adults mainly relies on manual palpation by physicians to determine the puncture point and marking it with fingernail scratches. This method has many drawbacks: the accuracy of manual palpation is easily affected by the physician's experience, the feel of the gloves, and the patient's skin condition (elasticity, smoothness); the scratch marks are easily erased or blurred due to the recovery of skin elasticity and subsequent wiping with disinfectant; and the physician's repositioning after putting on gloves is prone to errors; marking and disinfection are separate steps, which are cumbersome and increase the risk of contamination; the entire process of positioning, marking, and draping requires the physician's two hands to work together, resulting in low operational efficiency. Therefore, there is an urgent need to develop a lumbar puncture auxiliary device that can be operated with one hand, with precise positioning, simultaneous marking and disinfection, and auxiliary drape fixation. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a single-hand controllable lumbar puncture auxiliary marking device, which can realize single-hand operation to confirm the marking and disinfection of the lumbar puncture point.

[0004] The present invention provides a single-hand controlled lumbar puncture auxiliary marking device, comprising a device body, at least two sets of positioning modules, a marking and disinfection module, and two sets of adhesive fixing modules; A through groove is provided through the middle of the device body, and the marking and disinfection module is slidably inserted into the through groove. The marking and disinfection module can slide along the axial direction of the through groove. A limit structure is provided on the inner circumference of the through groove. The marking and disinfection module cooperates with the limit structure to limit the range of movement of the marking and disinfection module along the axial direction of the through groove. The positioning module is embedded at intervals on the device body and is used to clamp and position bony landmarks on the human body surface; the fixing module is set at the circumferential position of the device body and is used to form adhesion and fixing points around the puncture area; both the positioning module and the fixing module are set on the same side of the device body. The marking and disinfection module includes a pressing component, a connecting component, and a marking component. The connecting component is slidably disposed in the through groove. The pressing component is detachably embedded in one end of the connecting component. The marking component is disposed at the end of the connecting component away from the pressing component. The marking component and the positioning module are on the same side. The marking and disinfection module has a liquid storage structure inside. When the pressing component is pressed, it can form a mark on the surface of human skin through the marking component and release disinfectant through the liquid storage structure.

[0005] As a further improvement of the present invention, the outer periphery of the side of the through groove away from the device body where the positioning module is located is recessed to form a first step layer; the outer periphery of the end of the connector away from the marker extends radially outward along the connector to form a stop portion; the stop portion is connected to the stop of the first step layer to restrict the radial movement of the connector from back to front. The outer periphery of the through groove away from the marker is recessed to form a second step layer; the side of the marker facing the connector is connected to the stop of the second step layer.

[0006] As a further improvement of the present invention, the second step layer extends radially inward along the through groove and then extends axially into the through groove to form a limiting part; the limiting part is recessed outward from the inside of the through groove to provide one or more receiving grooves, and the receiving grooves are connected to the inside of the through groove. A reset component is slidably embedded in the receiving groove, with one end of the reset component abutting against the bottom of the receiving groove; the end of the reset component away from the marking component abutting against the third step layer, which is used to drive the marking disinfection module to reset after the pressing component is released.

[0007] As a further improvement of the present invention, one or more transition posts are fixedly provided at one end of the pressing member embedded in the mounting groove. One or more connecting posts are fixedly installed on the side of the connector away from the pressing member; one or more transition grooves are opened through the marking member; the connecting posts are inserted into the transition grooves; the connecting posts are opened through the through grooves; the transition posts are detachably inserted into the through grooves, and the end of the transition posts away from the pressing member is exposed at the opening of the through groove.

[0008] As a further improvement of the present invention, a cavity is hollowly provided inside the pressing member or the part embedded in the mounting groove, and a cavity is hollowly provided inside the transition column; the cavity in the pressing member and the cavity in the transition column are connected through each other to form a liquid storage structure, which is filled with disinfectant; a cross-shaped cut is provided at the end of the transition column away from the pressing member, which opens when the pressing member is squeezed, and the disinfectant in the liquid storage structure is sprayed onto the patient's skin that needs to be marked. The pressing part is a flexible part made of silicone, and it is a disposable consumable.

[0009] As a further improvement of the present invention, a marking structure is provided on the side of the marker away from the connector, the marking structure including a graphic mark for marking the puncture position.

[0010] As a further improvement of the present invention, the two ends of one side of the device body are provided with second mounting grooves, and the positioning modules are respectively installed in the corresponding second mounting grooves. The positioning module includes a rolling positioning component, an elastic driving component, and a control component. The rolling positioning component can be slidably set on the device body and clamps and positions the human body surface structure under the action of the elastic driving component. The control component is slidably embedded in the outer periphery of the device body. The control component is installed and connected to the elastic driving component to drive the rolling positioning component to move along the device body through the elastic driving component.

[0011] As a further improvement of the present invention, the rolling positioning component includes four sliding bearings and two long rollers; the long rollers are divided into inner long rollers and outer long rollers, which are arranged side by side at intervals; a sliding bearing is respectively fitted at both ends of the two long rollers and is rotatably connected to the sliding bearings; the sliding bearings are respectively slidably embedded in the sliding tracks recessed at both ends of the bottom of the corresponding second mounting groove; The elastic drive component includes several elastic elements; both ends of the side wall of the second mounting groove near the marking and disinfection module are recessed and provided with first receiving grooves; a first mounting post is fixedly provided at the bottom of the first receiving groove; the axial direction of the first mounting post coincides with that of the sliding bearing; a corresponding elastic element is sleeved on the outer periphery of each first mounting post, and one end of the corresponding elastic element abuts against the bottom of the first receiving groove; the end of the elastic element away from the first receiving groove abuts against the side wall of the corresponding sliding bearing sleeved on the inner long roller away from the outer long roller, and is fixedly connected to the sliding bearing, which is used to realize the clamping and resetting of the long roller of the rolling positioning component, and to adapt to the clamping of bony landmarks of different body types.

[0012] As a further improvement of the present invention, the device body is provided with a first mounting groove in the upper, lower, left and right directions on the side where the second positioning module is located, and the glue fixing module is respectively installed in the corresponding first mounting groove. The adhesive fixing module includes a rotating component and an adhesive material. The adhesive material is wrapped around the rotating component and led out from the opening of the first mounting groove of the device body for adhesion and fixing.

[0013] As a further improvement of the present invention, the rotating assembly includes a large gear, a small gear, two rotating shafts and a conversion column; the rotating shafts are rotatably disposed in the first mounting groove, and the two ends of the rotating shafts are rotatably embedded in the side wall of the first mounting groove; the two rotating shafts are arranged side by side at intervals; A large gear is fixedly sleeved on the outer circumference of one end of one rotating shaft, and a small gear is fixedly sleeved on the outer circumference of one end of the other rotating shaft; the large gear and the small gear are on the same side and meshed; the two rotating shafts are connected by transmission through the large gear and the small gear. The maximum outer diameter of the large gear is greater than the maximum outer diameter of the small gear. The two ends of the conversion column are embedded in the side wall of the slot at the opening of the first mounting groove; the two rotating shafts and the conversion column are arranged in parallel. The adhesive material is wrapped around the outer circumference of the rotating shaft with a large gear, and the tape head on the outer side of the adhesive material passes through the outer circumference of the conversion column and is fixedly connected to the rotating shaft with a small gear.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: By setting a positioning module, a marking and disinfection module, and an adhesive fixation module on the device body, medical staff can complete operations such as positioning, marking, disinfection, and adhesive fixation (adhesive dots are used to fix the drape) while holding the device with one hand, realizing single-handed operation and improving operational efficiency; The positioning module controls two sets of relatively movable long rollers through the control components, which work in conjunction with elastic components to achieve mechanical clamping and positioning of the spinous processes of the 3rd and 4th lumbar vertebrae. This replaces the traditional manual palpation method, avoids interference from factors such as skin condition and glove feel, and achieves high positioning accuracy. Meanwhile, the marking structure of the marker can leave a clear puncture point mark on the skin surface, and the marking module is equipped with a liquid storage structure. When the pressing operation is performed, the flexible pressing part is subjected to force, which compresses the liquid storage structure inside, opens the cross-shaped incision on the transition column, and sprays out the disinfectant inside the liquid storage structure, thereby realizing the simultaneous marking and disinfection, reducing operation steps and reducing the risk of contamination. By setting a limiting structure and a reset component in the through groove, the connecting component can automatically reset after being pressed, while preventing the component from coming off, thus improving the stability and durability of the device. The adhesive fixation module on the device body can form multiple adhesion anchor points around the puncture point, which facilitates the laying and fixation of the drape, making the sterile area more stable and improving the standardization of clinical operations. The marking and pressing parts are detachable and can be replaced as disposable parts, which ensures hygiene and safety and reduces the cost of use. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure of the device body of the present invention; Figure 3 This is a cross-sectional structural diagram of the present invention; Figure 4 For the present invention Figure 3 A schematic diagram of the structure of section B circled in the middle; Figure 5 This is a schematic cross-sectional view of the device body of the present invention; Figure 6 This is a schematic diagram of the adhesive fixing module structure of the present invention; Figure 7 This is a schematic diagram of the marker structure of the present invention; Figure 8 This is a schematic diagram of the device body structure of the present invention; Figure 9 This is a schematic diagram of the positioning module structure of the present invention; Figure 10 This is a partial structural diagram of the marking and disinfection module of the present invention.

[0016] Explanation of the labels in the diagram: 1. Device body; 11. Through groove; 111. Limiting part; 112. Receiving groove; 113. First step layer; 2. Positioning module; 21. Control component; 22. Sliding track; 23. Sliding bearing; 24. Long roller; 25. Elastic component; 3. Marking and disinfection module; 31. Pressing component; 32. Connecting component; 33. Marking component; 34. Reset component; 35. Third step layer; 36. Connecting column; 4. Adhesive fixing module; 41. Large gear; 42. Small gear; 43. Rotating shaft; 44. Sterile double-sided adhesive; 45. Conversion column. Detailed Implementation

[0017] The present invention will be further described in detail below with reference to the embodiments. The following embodiments are explanations of the present invention, but the present invention is not limited to the following embodiments.

[0018] For the sake of clarity and simplicity in describing this application, Figure 1 In the auxiliary marking device, the left end of the device body 1 is defined as the left side, the right end of the device body 1 is defined as the right side, the front of the device body 1 where several modules are provided is defined as the front side, and the back of the device body 1 is defined as the rear side; the orientation or positional relationship of the above indication is based on the auxiliary marking device. Figure 1 The orientations or positional relationships shown are for the purpose of facilitating and simplifying the description of this application, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0019] Specific Implementation Example 1: Please refer to... Figure 1 - Figure 9A single-handed controlled lumbar puncture auxiliary marking device includes an integrated device body 1, two sets of positioning modules 2, a marking and disinfection module 3, and four sets of adhesive fixing modules 4. The front side of the device body 1 has four recessed first mounting grooves at the top, bottom, left, and right positions, and the four sets of adhesive fixing modules 4 are respectively installed in the corresponding first mounting grooves. The front sides of the device body 1 also have two recessed second mounting grooves, and the positioning modules 2 are respectively installed in the corresponding second mounting grooves. A through groove 11 runs from the front to the back of the middle position of the device body 1, and the marking and disinfection module 3 slides through the through groove 11.

[0020] The outer periphery of the rear side of the through groove 11 is recessed to form a first step layer 113; the rear end of the marking disinfection module 3 is connected to the stop of the first step layer 113 to restrict the radial movement of the marking disinfection module 3 from back to front.

[0021] The outer periphery of the front side of the through groove 11 is recessed to form a second step layer; the second step layer extends radially inward along the through groove and then extends axially into the through groove to form a limiting part 111; the limiting part 111 is recessed outward (from back to front) from the inside of the through groove to provide one or more receiving grooves 112, and the receiving grooves 112 are connected to the inside of the through groove.

[0022] The marking and disinfection module 3 includes a pressing member 31, a connecting member 32, and a marking member 33; the connecting member 32 is slidably inserted into the through groove 11; the rear side of the connecting member 32 is recessed and has an embedding groove; one end of the pressing member 31 is embedded in the embedding groove of the connecting member 32 and is detachably connected to the connecting member 32.

[0023] The marker 33 is installed at the end of the connector 32 away from the pressing member 31; the end of the marker 33 away from the connector 32 is partially recessed to form an identification structure, which includes a cross mark and a circular mark, with the cross mark fixedly set inside the circle of the circular mark.

[0024] One or more connecting posts 36 are fixedly provided on the side of the connector 32 away from the pressing member 31; one or more transition grooves are opened through the recessed part of the marking member 33; the number of connecting posts 36 is the same as the number of transition grooves; the connecting posts 36 are inserted into the transition grooves.

[0025] One or more transition posts are fixedly provided at one end of the pressing member 31 embedded in the mounting groove. The transition posts are hollow and have cavities. The number of transition posts is the same as the number of connecting posts 36. The connecting posts 36 are provided with through grooves that are connected to the mounting groove. The transition posts are detachable and are installed in the through grooves. The end of the transition post away from the pressing member 31 is exposed at the opening of the through groove.

[0026] The pressing component 31 is a flexible component; the pressing component 31 is made of silicone; the pressing component 31 is a disposable consumable component and can be replaced during use. The pressing component 31 will deform when subjected to external pressure.

[0027] The pressing element 31 has a hollow chamber inside or in the part embedded in the mounting groove, and the transition column has a hollow cavity inside. The chamber inside the pressing element 31 and the cavity inside the transition column are connected to form a liquid storage structure, which is filled with disinfectant. The end of the transition column away from the pressing element 31 has a cross-shaped cut, which opens when the pressing element 31 is squeezed, and the disinfectant in the liquid storage structure is sprayed onto the skin of the patient that needs to be marked.

[0028] The capacity of the liquid storage structure is 5-10 ml.

[0029] A third step layer 35 is formed by recessing the outer periphery of the end of the connector 32 that is connected to the marker 33, and an annular groove is formed between the marker 33 and the connector 32; the limiting part 111 is slidably embedded in the annular groove, and the limiting part 111 can reciprocate in the limiting groove along the axial direction of the connector 32.

[0030] A reset member 34 is slidably embedded in the receiving groove 112, with the front end of the reset member 34 abutting against the bottom of the receiving groove 112; the end of the reset member 34 away from the marker 33 abutting against the third step layer 35.

[0031] Preferably, the reset element 34 is a compression spring.

[0032] Optionally, the two ends of the reset member 34 are fixedly connected to the bottom of the receiving groove 112 and the connector 32, respectively.

[0033] The side of the marker 33 facing the connector 32 is connected to the stop of the second step layer.

[0034] The outer periphery of the end of the connector 32 away from the marker 33 extends radially outward along the connector 32 to form a stop portion; the stop portion is connected to the first step layer 113 stop to restrict the radial movement of the connector 32 from back to front.

[0035] The distance between the side of the limiting part 111 away from the marker 33 and the second step layer in the axial direction of the through groove 11 is h. The distance between the side of the marker 33 facing the connector 32 and the third step layer 35 in the axial direction of the through groove 11 is H, and the distance H is greater than the distance h. The distance between the side of the limiting part 111 away from the marker 33 and the first step layer 113 in the axial direction of the through groove 11 is D. The distance between the third step layer 35 and the side of the stop facing the marker 33 in the axial direction of the through groove 11 is d, and the distance D is less than the distance d. This arrangement allows the marking and disinfection module 3 to have sufficient space to slide on the device body 1.

[0036] The bottom of the second mounting groove has recessed sliding rails 22 at both the top and bottom ends; the two ends of the positioning module 2 are slidably embedded in the sliding rails 22.

[0037] The positioning module 2 includes two control components 21, four sliding bearings 23, two long rollers 24, and four elastic components 25. The long rollers 24 are divided into inner long rollers and outer long rollers, which are arranged side by side with intervals. Each end of the two long rollers is fitted with a sliding bearing 23 and is rotatably connected to the sliding bearing 23. The sliding bearings 23 are slidably embedded in the corresponding sliding tracks 22.

[0038] The inner walls at both ends of the second mounting groove are recessed with slide rails; the two ends of the long rollers are respectively slidably embedded in the slide rails.

[0039] The second mounting slot has two recessed first receiving slots on the side wall near the marking and disinfection module 3; a first mounting post is fixedly installed at the bottom of the first receiving slot; from left to right, the axial direction of the first mounting post coincides with that of the sliding bearing 23.

[0040] Each of the first mounting posts is fitted with a corresponding elastic element 25. One end of the corresponding elastic element 25 is abutted against the bottom of the first receiving groove. The end of the elastic element 25 away from the first receiving groove is abutted against the side wall of the sliding bearing 23 on the inner long roller away from the outer long roller, and is fixedly connected to the sliding bearing 23.

[0041] Optionally, the device body 1 is arranged in a cross shape.

[0042] The two sets of positioning modules 2 have a total of four control components 21.

[0043] In one embodiment, a third mounting groove is recessed on one side of the second mounting groove near the edge of the device body 1, and a fourth mounting groove is recessed at both the upper and lower ends of the third mounting groove; the control member 21 is slidably embedded in the fourth mounting groove; a cover plate is provided on the third mounting groove, and the upper and lower ends of the cover plate extend upward and downward respectively to cover the side of the control member 21 away from the bottom of the fourth mounting groove, so as to restrict the control member 21 in the fourth mounting groove.

[0044] Each control component 21 has a second mounting post fixedly installed on the side facing the third mounting groove. From left to right, the axial direction of the first mounting post coincides with that of the sliding bearing 23.

[0045] A corresponding elastic element 25 is fitted around the outer periphery of the second mounting post. One end of the corresponding elastic element 25 abuts against the side wall of the control element 21 at the bottom of the second mounting post. The end of the elastic element 25 away from the control element 21 abuts against the side wall of the sliding bearing 23 on the outer long roller away from the inner long roller, and is fixedly connected to the sliding bearing 23.

[0046] By pressing the control component 21, the control component pushes the outer long roller to slide within the sliding track 22 via the elastic component 25, thereby driving the long roller to slide within the track.

[0047] The outer side of the control component 21 is arc-shaped to facilitate the gripping and pressing by medical staff.

[0048] The adhesive fixing module 4 includes a large gear 41, a small gear 42, two rotating shafts 43, sterile double-sided adhesive 44, and a conversion column 45; the rotating shafts 43 are rotatably mounted in the first mounting groove, and the two ends of the rotating shafts 43 are rotatably embedded in the side wall of the first mounting groove; the two rotating shafts 43 are arranged side by side at intervals.

[0049] A large gear 41 is fixedly sleeved on the outer periphery of one end of one of the rotating shafts 43, and a small gear 42 is fixedly sleeved on the outer periphery of one end of the other rotating shaft 43; the large gear 41 and the small gear 42 are on the same side and meshed; the two rotating shafts 43 are connected by transmission through the large gear 41 and the small gear 42.

[0050] The maximum outer diameter of the large gear 41 is greater than the maximum outer diameter of the small gear 42.

[0051] The two ends of the conversion column 45 are embedded in the side wall of the slot of the first mounting groove; the two rotating shafts 43 and the conversion column 45 are arranged in parallel.

[0052] The sterile double-sided tape 44 is wrapped around the outer periphery of the rotating shaft 43 on which the large gear 41 is provided. The tape head on the outer side of the sterile double-sided tape 44 passes through the outer periphery of the conversion column 45 and is fixedly connected to the rotating shaft 43 on which the small gear 42 is provided.

[0053] The distance between the conversion column 45 and the bottom of the first mounting groove is greater than the distance between the two rotating shafts 43 and the bottom of the first mounting groove.

[0054] The outer surface of the sterile double-sided adhesive 44, which is wrapped around the outer periphery of the conversion column 45, protrudes from the opening of the first mounting groove.

[0055] The adhesive fixing modules 4 on opposite sides are oriented in the same direction, that is, the central axis of the conversion column 45 on opposite sides is coaxial.

[0056] Working principle: In clinical use, the operator holds the main body 1 of the device with one hand, and presses the four control pieces 21 with four fingers respectively. The control pieces 21 slide towards the inner long roller by pressing the outer long roller through the corresponding elastic piece 25. After feeling the bony landmark on the body surface, the operator stops pressing the control piece 21, thus completing the clamping and positioning of the spinous processes of the 3rd and 4th lumbar vertebrae. The palm presses the pressing piece 31, and the liquid storage structure inside the pressing piece 31 is squeezed. The cross-shaped incision on the transition column opens, and the disinfectant in the liquid storage structure sprays out, leaving a positioning mark and spraying disinfectant, leaving an imprint. The device is then slid left or right, and then up or down to attach double-sided tape around the puncture point. Four adhesive fixing modules 4 are used to attach double-sided tape around the puncture point to form anchor points. When laying the drape later, the edges of the drape are attached with double-sided tape to fix the drape. The entire operation can be completed by a single person. The positioning is accurate and the drape is firmly fixed, effectively improving the standardization and safety of lumbar puncture operation.

[0057] Specific Embodiment Two: Unlike Specific Embodiment One, both ends of the conversion column 45 are fixedly provided with support members, which are respectively fixedly provided on the side wall of the groove of the first mounting groove.

Claims

1. A single-handed controlled lumbar puncture auxiliary marking device, characterized in that: It includes the device body (1), at least two sets of positioning modules (2), a marking and disinfection module (3), and two sets of adhesive fixing modules (4); A through groove (11) is provided through the middle of the device body (1). The marking and disinfection module (3) is slidably inserted in the through groove (11). The marking and disinfection module (3) can slide along the axial direction of the through groove (11). A limiting structure is provided on the inner circumference of the through groove (11). The marking and disinfection module (3) cooperates with the limiting structure to limit the range of movement of the marking and disinfection module (3) along the axial direction of the through groove (11). The positioning module (2) is embedded in the device body at intervals and is used to clamp and position the bony landmarks on the human body surface; the fixing module (4) is set in the circumferential position of the device body (1) and is used to form adhesion fixing points around the puncture area; the positioning module (2) and the fixing module (4) are both set on the same side of the device body (1). The marking and disinfection module (3) includes a pressing component (31), a connecting component (32), and a marking component (33). The connecting component (32) is slidably disposed in the through groove (11). The pressing component (31) is detachably embedded in one end of the connecting component (32). The marking component (33) is disposed at the end of the connecting component (32) away from the pressing component (31). The marking component (33) and the positioning module (2) are on the same side. The marking disinfection module has a liquid storage structure inside. When the pressing part (31) is pressed, it can form a mark on the surface of human skin through the marking part (33) and release disinfectant through the liquid storage structure.

2. The single-handed controlled lumbar puncture auxiliary marking device according to claim 1, characterized in that: The outer periphery of the through groove (11) away from the device body (1) where the positioning module (2) is located is recessed to form a first step layer (113); the outer periphery of the end of the connector (32) away from the marker (33) extends radially outward along the connector (32) to form a stop portion; the stop portion is connected to the stop of the first step layer (113) to restrict the radial movement of the connector (32) from back to front; The groove (11) is recessed on the outer periphery of the side away from the marker (33) to form a second step layer; the side of the marker (33) facing the connector (32) is connected to the stop of the second step layer.

3. The single-handed controlled lumbar puncture auxiliary marking device according to claim 2, characterized in that: After the second step extends radially inward along the through groove, it extends axially into the through groove to form a limiting part (111); the limiting part (111) is recessed outward from the inside of the through groove to provide one or more receiving grooves (112), and the receiving grooves (112) are connected to the inside of the through groove. A reset member (34) is slidably embedded in the receiving groove (112). One end of the reset member (34) is abutted against the bottom of the receiving groove (112). The end of the reset member (34) away from the marker (33) is abutted against the third step layer (35) and is used to drive the marking disinfection module (3) to reset after the pressing member (31) is released.

4. The single-handed controlled lumbar puncture auxiliary marking device according to claim 1, characterized in that: One or more transition posts are fixedly provided at one end of the pressing part (31) embedded in the mounting groove; One or more connecting posts (36) are fixedly provided on the side of the connector (32) away from the pressing member (31); one or more transition grooves are opened through the marking member (33); the connecting posts (36) are inserted into the transition grooves; the connecting posts (36) are opened through the through grooves; the transition posts are detachably inserted into the through grooves, and the end of the transition posts away from the pressing member (31) is exposed at the opening of the through groove.

5. The single-handed controlled lumbar puncture auxiliary marking device according to claim 1, characterized in that: The pressing element (31) has a hollow chamber inside or in the part embedded in the mounting groove, and the transition column has a hollow cavity inside; the chamber inside the pressing element (31) and the cavity inside the transition column are connected to form a liquid storage structure, which is filled with disinfectant; the end of the transition column away from the pressing element (31) has a cross-shaped cut, which opens when the pressing element (31) is squeezed, and the disinfectant in the liquid storage structure is sprayed onto the skin of the patient that needs to be marked; The pressing part (31) is a flexible part made of silicone material, and the pressing part (31) is a disposable consumable part.

6. The single-handed controlled lumbar puncture auxiliary marking device according to claim 1, characterized in that: The marker (33) has an identification structure on the side away from the connector (32), the identification structure including a graphic identifier for marking the puncture position.

7. The single-handed controlled lumbar puncture auxiliary marking device according to claim 1, characterized in that: The device body (1) has two recessed second mounting slots on one side, and the positioning modules (2) are respectively installed in the corresponding second mounting slots; The positioning module (2) includes a rolling positioning component, an elastic driving component, and a control component (21). The rolling positioning component can slide on the device body (1) and clamp and position the human body surface structure under the action of the elastic driving component. The control component (21) is slidably embedded in the outer periphery of the device body (1). The control component (21) is mounted and connected to the elastic drive component for driving the rolling positioning component to move along the device body (1) via the elastic drive component.

8. A single-handed controlled lumbar puncture auxiliary marking device according to claim 7, characterized in that: The rolling positioning component includes four sliding bearings (23) and two long rollers (24); the long rollers (24) are divided into inner long rollers and outer long rollers, which are arranged side by side at intervals; a sliding bearing (23) is fitted at each end of the two long rollers and is rotatably connected to the sliding bearings (23); the sliding bearings (23) are respectively slidably embedded in the sliding tracks (22) that are recessed at both ends of the bottom of the corresponding second mounting groove; The elastic drive component includes several elastic elements (25); the two ends of the side wall of the second mounting groove near the marking and disinfection module (3) are recessed and provided with first receiving grooves; the bottom of the first receiving groove is fixedly provided with a first mounting post; the axial direction of the first mounting post coincides with the sliding bearing (23); a corresponding elastic element (25) is sleeved on the outer periphery of the first mounting post, and one end of the corresponding elastic element (25) abuts against the bottom of the first receiving groove; the end of the elastic element (25) away from the first receiving groove abuts against the side wall of the corresponding sliding bearing (23) sleeved on the inner long roller away from the outer long roller, and is fixedly connected with the sliding bearing (23) to realize the clamping and resetting of the long roller of the rolling positioning component, and to adapt to the clamping of the bony landmarks of different body types.

9. A single-handed controlled lumbar puncture auxiliary marking device according to claim 1, characterized in that: The device body (1) is provided with a first mounting groove in the upper, lower, left and right directions on one side where the second positioning module (2) is located. The glue fixing module (4) is installed in the corresponding first mounting groove. The adhesive fixing module (4) includes a rotating component and an adhesive material, which is wrapped around the rotating component and led out from the opening of the first mounting groove of the device body (1) for adhesive fixing.

10. A single-handed controlled lumbar puncture auxiliary marking device according to claim 9, characterized in that: The rotating assembly includes a large gear (41), a small gear (42), two rotating shafts (43) and a conversion column (45); the rotating shafts (43) are rotatably mounted in the first mounting groove, and the two ends of the rotating shafts (43) are rotatably embedded in the side wall of the first mounting groove; the two rotating shafts (43) are arranged side by side at intervals; A large gear (41) is fixedly sleeved on the outer periphery of one end of one of the rotating shafts (43), and a small gear (42) is fixedly sleeved on the outer periphery of one end of the other rotating shaft (43); the large gear (41) and the small gear (42) are on the same side and meshed; the two rotating shafts (43) are connected by transmission through the large gear (41) and the small gear (42); The maximum outer diameter of the large gear (41) is greater than the maximum outer diameter of the small gear (42); The two ends of the conversion column (45) are embedded in the side wall of the slot of the first mounting groove; the two rotating shafts (43) and the conversion column (45) are arranged in parallel; The adhesive material is wrapped around the outer periphery of the rotating shaft (43) with a large gear (41), and the tape head on the outside of the adhesive material passes through the outer periphery of the conversion column (45) and is fixedly connected to the rotating shaft (43) with a small gear (42).

Images