Orthopedic joint puncture instrument convenient to position

Abstract

The utility model discloses an orthopaedic joint puncture instrument convenient to position, which belongs to the technical field of orthopaedic joint puncture and comprises a placing device, a fixing device and a positioning device, and the fixing device used for fixing legs of a patient and the positioning device used for facilitating puncture positioning are mounted on the placing device. The positioning device comprises a locking assembly used for mounting and locking, a positioning assembly used for quick positioning and a puncturing assembly used for puncturing treatment, the locking assembly is mounted on the placing device, the positioning assembly is mounted on the locking assembly, and the puncturing assembly is connected with the positioning assembly. By means of the mode, through the rotary arrangement of the observation plate and the rotary adjusting ring, the angle of the puncture assembly can be conveniently adjusted, a puncture point can be punctured more accurately, the puncture point can be rapidly positioned through the corresponding position of the observation plate and the knee of a patient, and follow-up puncture is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of orthopedic joint puncture technology, specifically to an orthopedic joint puncture instrument that is easy to locate. Background Technology

[0002] For patients with gout or rheumatoid arthritis, joint aspiration and local injection are quick and easy treatment methods. For example, when performing knee joint aspiration, a puncture device is usually used to puncture and aspirate or inject fluid at the puncture point near the patient's patella.

[0003] For example, Chinese patent application CN209032557U discloses a joint puncture needle, including an outer needle body, an inner needle body, a first connecting end, a connecting end seat, a second connecting end, an adapter mounting head, a fixed mounting seat, a puncture needle plug rod, scale lines, an anti-slip connecting surface, a matching mirror pin, and a puncture needle plug; the first connecting end connects the outer needle body and the connecting end seat, the second connecting end connects the connecting end seat and the adapter mounting head, the fixed mounting seat is mounted on the connecting end seat, the puncture needle plug is inserted into the outer needle body through the puncture needle plug rod, the inner needle body penetrates the outer needle body, the first connecting end, the connecting end seat, and the fixed mounting seat, the scale lines are set on the surfaces of the outer needle body and the inner needle body; the anti-slip connecting surface is set on the outer wall of the outer needle body, and the matching mirror pin is sleeved on the outer needle body through the anti-slip connecting surface.

[0004] However, this joint puncture needle is difficult to use to accurately locate the puncture point, and the patient's movement during the puncture process can lead to inaccurate puncture.

[0005] Based on this, this utility model designs an orthopedic joint puncture instrument that is easy to position in order to solve the above problems. Utility Model Content

[0006] In view of the above-mentioned shortcomings of the existing technology, the present invention provides an orthopedic joint puncture instrument that is easy to locate.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] An orthopedic joint puncture instrument for easy positioning includes a placement device, a fixation device, and a positioning device. The placement device is equipped with a fixation device for fixing the patient's leg and a positioning device for facilitating puncture positioning.

[0009] The positioning device includes a locking component for mounting and locking, a positioning component for rapid positioning, and a puncture component for puncture treatment. The locking component is mounted on the placement device, the positioning component is mounted on the locking component, and the puncture component is connected to the positioning component.

[0010] The positioning assembly includes an outer mounting sleeve, a rotating adjusting ring, an observation plate, and a limiting cylinder. The outer mounting sleeve is connected to the locking assembly. The front and rear ends of the outer mounting sleeve have through holes for use with the rotating adjusting ring. The front and rear ends of the rotating adjusting ring are provided with convex cylinders. The convex cylinders of the rotating adjusting ring are located in the through holes of the outer mounting sleeve and are rotatably connected to the outer mounting sleeve. The left and right ends of the rotating adjusting ring have through grooves for use with the observation plate. The left and right ends of the observation plate are provided with convex cylinders. The convex cylinders of the observation plate are located in the through grooves of the rotating adjusting ring and are rotatably connected to the rotating adjusting ring. The middle part of the observation plate has a through hole for use with the puncture assembly. The limiting cylinder is fixedly installed on the upper end of the observation plate. The observation plate and the limiting cylinder are connected to the puncture assembly.

[0011] Furthermore, the positioning components are provided in three parts: two positioning components are located on the left side of the front and rear ends of the locking component, and the other positioning component is located on the right end of the locking component. The three positioning components correspond to the medial side of the patella, the lateral side of the patella, and the suprapatellar bursa of the patient's knee, respectively. The puncture component is connected to one of the positioning components.

[0012] Furthermore, the observation plate is made of a transparent material that facilitates observation, and the convex cylinders and rotating adjustment rings at the left and right ends of the observation plate are detachably set.

[0013] Furthermore, the placement device includes a fixing body and a soft pad. The upper end of the fixing body has a semi-circular groove for placing the patient's leg. The soft pad is fixedly installed at the bottom of the semi-circular groove of the fixing body. The fixing body is connected to the fixing device and the locking component. The bottom left and right sides of the fixing body have U-shaped grooves for use with the fixing device.

[0014] Furthermore, there are two fixing devices, which are symmetrically arranged and installed on the left and right ends of the fixing body.

[0015] Furthermore, the fixing device includes two mounting rings, a strap, and a Velcro strap. The two mounting rings are fixedly installed on the upper front and rear ends of the fixing body, respectively. One end of the strap is fixedly installed on the inner side of the fixing body, and the other end of the strap passes through the U-shaped groove and then through a mounting ring. The Velcro strap is fixedly installed on one side of the strap.

[0016] Furthermore, the hook side and the loop side of the Velcro are located on the lower side of the end of the strap away from the fixing body and on the lower side of the middle section of the strap, respectively.

[0017] Furthermore, the locking assembly includes an arc-shaped plate, a locking block, a limiting post, a handle, a mounting shell, a first spring, and a lifting component. The rear end of the arc-shaped plate is rotatably connected to the fixed body, and the front end of the arc-shaped plate is in contact with the fixed body. The arc-shaped plate has a through hole for accommodating an outer mounting sleeve, which is fixedly installed in the through hole of the arc-shaped plate. The locking block is fixedly installed on the lower side of the front end of the arc-shaped plate, and has a through hole for the limiting post to pass through. The front end of the fixed body has a through groove for accommodating the locking block and the lifting component, which is located in the through groove at the front end of the fixed body and in contact with the fixed body. The limiting post passes through the fixed body and the mounting shell and is slidably connected to the fixed body and the mounting shell. The limiting post is inserted into the locking block. The mounting shell is fixedly installed on the front end face of the fixed body. The first spring is sleeved on the outside of the limiting post, and both ends of the first spring are fixedly connected to the mounting shell and the limiting post, respectively. The front end of the limiting post is fixedly connected to the handle. The lifting component is located in the through groove at the front end of the fixed body and is connected to the locking block. The lower side of the front end of the locking block is inclined.

[0018] Furthermore, the lifting assembly includes a lifting plate and multiple second springs. The lifting plate is located in the through groove at the front end of the fixed body and is in contact with the fixed body. The upper end of the lifting plate is in contact with the locking block. The multiple second springs are located at the lower end of the lifting plate, and the two ends of the second springs are fixedly connected to the lifting plate and the fixed body, respectively.

[0019] Furthermore, the puncture assembly is located at the upper end of an observation plate, and the puncture assembly is slidably connected to the inner side of the limiting cylinder, and the puncture assembly is in contact with the observation plate.

[0020] Compared with the prior art, the advantages of this utility model are as follows: 1. By rotating the observation plate and the rotating adjustment ring, the angle of the puncture component can be easily adjusted, making the puncture point more accurately inserted. By observing the corresponding position of the observation plate and the patient's knee, the puncture point can be quickly located, which facilitates subsequent puncture.

[0021] 2. The detachable design of the observation plate and the rotating adjustment ring allows for the replacement of the observation plate and the limiting cylinder to accommodate puncture components of different sizes. By passing the strap through the U-shaped groove, the patient's leg can be kept as close to the soft pad as possible, improving patient comfort. At the same time, space is left above the patient's leg to facilitate observation of the lower end of the puncture component.

[0022] 3. The locking of the block by the limiting post ensures the stability of the arc plate and facilitates piercing. The lifting plate and the second spring make it easy to unlock with one hand, improving the ease of use. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This utility model provides a three-dimensional orthopedic joint puncture instrument for easy positioning. Figure 1 ;

[0025] Figure 2 This is a front view of an orthopedic joint puncture instrument of the present invention that is easy to position;

[0026] Figure 3 This is a top view of an orthopedic joint puncture instrument of the present invention that is easy to position.

[0027] Figure 4 This utility model provides a three-dimensional orthopedic joint puncture instrument for easy positioning. Figure 2 ;

[0028] Figure 5 For along Figure 3 A three-dimensional diagram of AA with a portion removed;

[0029] Figure 6 This is a partial disassembly diagram of the positioning device of this utility model;

[0030] Figure 7 For along Figure 3 A 3D image of a BB with a portion cut off;

[0031] Figure 8 for Figure 7 A magnified view of point C in the middle.

[0032] The labels in the diagram represent:

[0033] 1. Placement device; 11. Fixing body; 12. Soft pad; 13. U-shaped groove; 2. Fixing device; 21. Mounting ring; 22. Strap; 23. Velcro; 3. Positioning device; 31. Locking assembly; 311. Arc plate; 312. Locking block; 313. Limiting post; 314. Handle; 315. Mounting shell; 316. First spring; 317. Lifting plate; 318. Second spring; 32. Positioning assembly; 321. Outer mounting sleeve; 322. Rotary adjusting ring; 323. Observation plate; 324. Limiting cylinder; 33. Puncture assembly. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0035] The terms "left," "right," "front," "back," "up," and "down" used in the following description refer to the orientation from the perspective of the front view.

[0036] Example 1: In some embodiments, please refer to the accompanying drawings. Figures 1-8 An orthopedic joint puncture instrument that is easy to position, including a placement device 1;

[0037] It also includes a fixation device 2 and a positioning device 3. The placement device 1 is equipped with a fixation device 2 for fixing the patient's leg and a positioning device 3 for facilitating puncture positioning.

[0038] The positioning device 3 includes a locking component 31 for mounting and locking, a positioning component 32 for rapid positioning, and a puncture component 33 for puncture treatment. The locking component 31 is mounted on the placement device 1, the positioning component 32 is mounted on the locking component 31, and the puncture component 33 is connected to the positioning component 32.

[0039] The positioning component 32 includes an outer mounting sleeve 321, a rotating adjusting ring 322, an observation plate 323, and a limiting cylinder 324. The outer mounting sleeve 321 is connected to the locking component 31. The outer mounting sleeve 321 has through holes at its front and rear ends that cooperate with the rotating adjusting ring 322. The rotating adjusting ring 322 has convex cylinders at its front and rear ends. The convex cylinders of the rotating adjusting ring 322 are located in the through holes of the outer mounting sleeve 321 and are rotatably connected to the outer mounting sleeve 321. The left and right ends of the rotating adjusting ring 322 have through grooves that cooperate with the observation plate 323. The left and right ends of the observation plate 323 have convex cylinders. The convex cylinders of the observation plate 323 are located in the through grooves of the rotating adjusting ring 322 and are rotatably connected to the rotating adjusting ring 322. The middle part of the observation plate 323 has a through hole that cooperates with the puncture component 33. The limiting cylinder 324 is fixedly installed on the upper end of the observation plate 323. The observation plate 323 and the limiting cylinder 324 are connected to the puncture component 33.

[0040] In normal use, this easy-to-position orthopedic joint puncture instrument involves placing the patient's leg inside the placement device 1, using the locking component 31 to position the patient's knee by observing the observation plate 323, and then using the fixing device 2 to fix the patient's leg. Depending on the patient's condition, the puncture component 33 is inserted into a limiting cylinder 324. The lower end position of the puncture component 33 is observed from one side. Rotating the puncture component 33 causes the observation plate 323 to rotate along the rotating adjustment ring 322 or causes the rotating adjustment ring 322 to rotate along the outer mounting sleeve 321, allowing the lower end of the puncture component 33 to be punctured. The rotation of the observation plate 323 and the rotating adjustment ring 322 allows for easy adjustment of the angle of the puncture component 33, resulting in more accurate insertion of the puncture point. By observing the corresponding position of the observation plate 323 and the patient's knee, the puncture point can be quickly located, facilitating subsequent punctures.

[0041] Example 2: In some embodiments, such as Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, this is a preferred embodiment of the present invention;

[0042] The positioning component 32 is provided in three parts. Two positioning components 32 are located on the left side of the front and rear ends of the locking component 31, and the other positioning component 32 is located on the right side of the locking component 31. The three positioning components 32 correspond to the medial side of the patella, the lateral side of the patella, and the suprapatellar bursa of the patient's knee, respectively. The puncture component 33 is connected to one of the positioning components 32.

[0043] The observation plate 323 is made of a transparent material that facilitates observation, and the convex cylinders and the rotating adjustment ring 322 at the left and right ends of the observation plate 323 are detachable.

[0044] When this easy-to-position orthopedic joint puncture instrument is in normal use, the patient's knee is positioned by aligning the medial patella, lateral patella, and suprapatellar bursa with the three positions of the transparent observation plate 323, which facilitates subsequent puncture. The detachable arrangement of the observation plate 323 and the rotating adjustment ring 322 allows for the replacement of the observation plate 323 and the limiting cylinder 324 to accommodate puncture components 33 of different sizes.

[0045] The placement device 1 includes a fixing body 11 and a soft pad 12. The upper end of the fixing body 11 is provided with a semi-circular groove to accommodate the placement of the patient's leg. The soft pad 12 is fixedly installed at the bottom of the semi-circular groove of the fixing body 11. The fixing body 11 is connected to the fixing device 2 and the locking component 31. The bottom left and right sides of the fixing body 11 are provided with U-shaped grooves 13 to accommodate the fixing device 2.

[0046] Two fixing devices 2 are provided, and the two fixing devices 2 are symmetrically arranged and installed on the left and right ends of the fixing body 11.

[0047] The fixing device 2 includes two mounting rings 21, a strap 22, and a Velcro 23. The two mounting rings 21 are fixedly installed on the upper front and rear ends of the fixing body 11, respectively. One end of the strap 22 is fixedly installed on the inner side of the fixing body 11, and the other end of the strap 22 passes through the U-shaped groove 13 and then through a mounting ring 21. The Velcro 23 is fixedly installed on one side of the strap 22.

[0048] The hook side and the loop side of the Velcro 23 are located on the lower side of the end of the strap 22 away from the fixing body 11 and the lower side of the middle section of the strap 22, respectively.

[0049] When using this easy-to-position orthopedic joint puncture instrument, place the patient's leg in the semi-circular groove of the fixation body 11, so that the patient's leg is in contact with the soft pad 12. After viewing through the observation plate 323 and using the locking component 31 to position the patient's knee, wrap the end of the strap 22 away from the fixation body 11 around the patient's leg and pass through the front mounting ring 21. Then pull the strap 22 back to make the hook and loop sides of the Velcro 23 adhere and fix it. The straps 22 on both sides can stably fix the patient's leg and prevent the patient from moving during the puncture process, which would lead to inaccurate puncture. By passing the strap 22 through the U-shaped groove 13, the patient's leg can be kept in close contact with the soft pad 12 as much as possible, improving the patient's comfort. At the same time, space is left above the patient's leg to facilitate observation of the lower end of the puncture component 33.

[0050] Example 3: In some embodiments, such as Figures 1-8 As shown, this is a preferred embodiment of the present invention;

[0051] The locking assembly 31 includes an arc-shaped plate 311, a locking block 312, a limiting post 313, a handle 314, a mounting shell 315, a first spring 316, and a lifting component. The rear end of the arc-shaped plate 311 is rotatably connected to the fixed body 11, and the front end of the arc-shaped plate 311 is in contact with the fixed body 11. The locking block 312 is fixedly installed on the lower side of the front end of the arc-shaped plate 311. The locking block 312 has a through hole for the limiting post 313 to pass through. The front end of the fixed body 11 has a through groove for accommodating the locking block 312 and the lifting component. The locking block 312 is located in the through groove at the front end of the fixed body 11 and is in contact with the fixed body 11. The arc-shaped plate 311 has a fitting for accommodating the outer mounting sleeve. The outer mounting sleeve 321 is fixedly installed in the through hole of the arc plate 311. The limiting post 313 passes through the fixed body 11 and the mounting shell 315 and is slidably connected to the fixed body 11 and the mounting shell 315. The limiting post 313 is inserted into the locking block 312. The mounting shell 315 is fixedly installed on the front end face of the fixed body 11. The first spring 316 is sleeved on the outside of the limiting post 313. The two ends of the first spring 316 are fixedly connected to the mounting shell 315 and the limiting post 313 respectively. The front end of the limiting post 313 is fixedly connected to the handle 314. The lifting component is located in the through groove at the front end of the fixed body 11. The lifting component is connected to the locking block 312. The lower side of the front end of the locking block 312 is inclined.

[0052] The lifting assembly includes a lifting plate 317 and a plurality of second springs 318. The lifting plate 317 is located in the through groove at the front end of the fixed body 11 and is in contact with the fixed body 11. The upper end of the lifting plate 317 is in contact with the locking block 312. The plurality of second springs 318 are located at the lower end of the lifting plate 317, and the two ends of the second springs 318 are fixedly connected to the lifting plate 317 and the fixed body 11, respectively.

[0053] The puncture assembly 33 is located on the upper end of an observation plate 323. The puncture assembly 33 is slidably connected to the inner side of the limiting cylinder 324. The puncture assembly 33 is in contact with the observation plate 323. The puncture assembly 33 is a medical puncture needle.

[0054] When this easily positioned orthopedic joint puncture instrument is in normal use, after placing the patient's leg inside the fixation body 11, the arc-shaped plate 311 is rotated. The arc-shaped plate 311 moves the locking block 312 to the compression limiting post 313. The limiting post 313 moves forward and compresses the first spring 316. The locking block 312 continues to move downward and compresses the lifting plate 317. The lifting plate 317 compresses the second spring 318. When the through hole of the locking block 312 corresponds to the limiting post 313, the first spring 316 pushes the limiting post 313 into the through hole of the locking block 312 to complete the locking. The puncture assembly 33 is then inserted into a limiting cylinder 324 to complete the puncture. To unlock, pull the handle 314 forward. The handle 314 causes the limiting post 313 to compress the first spring 316, disengaging the limiting post 313 from the through hole of the locking block 312. The second spring 318 pushes the lifting plate 317 upward, which in turn pushes the locking block 312 upward, causing the limiting post 313 to no longer correspond to the through hole of the locking block 312, thus completing the unlocking. The locking of the locking block 312 by the limiting post 313 ensures the stability of the arc plate 311, facilitating piercing. The lifting plate 317 and the second spring 318 allow for easy unlocking with one hand, improving ease of use.

[0055] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. An orthopedic joint puncture instrument for easy positioning, comprising a placement device (1), characterized in that: It also includes a fixation device (2) and a positioning device (3), wherein the placement device (1) is equipped with a fixation device (2) for fixing the patient's leg and a positioning device (3) for facilitating puncture positioning; The positioning device (3) includes a locking component (31) for mounting and locking, a positioning component (32) for rapid positioning, and a puncture component (33) for puncture treatment. The locking component (31) is mounted on the placement device (1), the positioning component (32) is mounted on the locking component (31), and the puncture component (33) is connected to the positioning component (32). The positioning component (32) includes an outer mounting sleeve (321), a rotating adjusting ring (322), an observation plate (323), and a limiting cylinder (324). The outer mounting sleeve (321) is connected to the locking component (31). The outer mounting sleeve (321) has through holes at its front and rear ends for use with the rotating adjusting ring (322). The rotating adjusting ring (322) has convex cylinders at its front and rear ends. The convex cylinders of the rotating adjusting ring (322) are located in the through holes of the outer mounting sleeve (321) and are rotatably connected to the outer mounting sleeve (321). The left and right ends of the rotating adjustment ring (322) are provided with through grooves for use with the observation plate (323). The left and right ends of the observation plate (323) are provided with convex cylinders. The convex cylinders of the observation plate (323) are located in the through grooves of the rotating adjustment ring (322) and are rotatably connected to the rotating adjustment ring (322). The middle part of the observation plate (323) is provided with through holes for use with the puncture assembly (33). The limiting cylinder (324) is fixedly installed on the upper end of the observation plate (323). The observation plate (323) and the limiting cylinder (324) are connected to the puncture assembly (33).

2. The orthopedic joint puncture instrument for easy positioning according to claim 1, characterized in that, The positioning component (32) is provided in three parts. Two positioning components (32) are located on the left side of the front and rear ends of the locking component (31), and the other positioning component (32) is located on the right side of the locking component (31). The three positioning components (32) correspond to the medial side of the patella, the lateral side of the patella, and the suprapatellar bursa of the patient's knee, respectively. The puncture component (33) is connected to one of the positioning components (32).

3. The orthopedic joint puncture instrument for easy positioning according to claim 2, characterized in that, The observation plate (323) is made of a transparent material that is easy to observe, and the convex cylinders on the left and right ends of the observation plate (323) and the rotating adjustment ring (322) are detachable.

4. The orthopedic joint puncture instrument for easy positioning according to claim 3, characterized in that, The placement device (1) includes a fixing body (11) and a soft pad (12). The upper end of the fixing body (11) is provided with a semi-circular groove for placing the patient's leg. The soft pad (12) is fixedly installed in the bottom of the semi-circular groove of the fixing body (11). The fixing body (11) is connected to the fixing device (2) and the locking component (31). The bottom left and right sides of the fixing body (11) are provided with U-shaped grooves (13) for use with the fixing device (2).

5. The orthopedic joint puncture instrument for easy positioning according to claim 4, characterized in that, There are two fixing devices (2), which are symmetrically installed on the left and right ends of the fixing body (11).

6. The orthopedic joint puncture instrument for easy positioning according to claim 5, characterized in that, The fixing device (2) includes two mounting rings (21), a strap (22) and a Velcro (23). The two mounting rings (21) are fixedly installed on the upper front and rear ends of the fixing body (11), one end of the strap (22) is fixedly installed on the inner side of the fixing body (11), and the other end of the strap (22) passes through the U-shaped groove (13) and then through another mounting ring (21). The Velcro (23) is fixedly installed on one side of the strap (22).

7. The orthopedic joint puncture instrument for easy positioning according to claim 6, characterized in that, The hook side and the loop side of the Velcro (23) are located on the lower side of the end of the strap (22) away from the fixing body (11) and the lower side of the middle section of the strap (22), respectively.

8. The orthopedic joint puncture instrument for easy positioning according to claim 7, characterized in that, The locking assembly (31) includes an arc-shaped plate (311), a locking block (312), a limiting post (313), a handle (314), a mounting shell (315), a first spring (316), and a lifting component. The rear end of the arc-shaped plate (311) is rotatably connected to the fixed body (11), and the front end of the arc-shaped plate (311) is in contact with the fixed body (11). The arc-shaped plate (311) has a through hole for accommodating an outer mounting sleeve (321), and the outer mounting sleeve (321) is fixedly installed in the through hole of the arc-shaped plate (311). The locking block (312) is fixedly installed on the lower side of the front end of the arc-shaped plate (311), and the locking block (312) has a through hole for the limiting post (313) to pass through. The front end of the fixed body (11) has a through groove for accommodating the locking block (312) and the lifting component. The locking block (312) is located in the through groove at the front end of the fixed body (11) and is in contact with the fixed body (11). The limiting post (313) passes through the fixed body (11) and the mounting shell (315) and is slidably connected to the fixed body (11) and the mounting shell (315). The limiting post (313) is inserted into the locking block (312). The mounting shell (315) is fixedly installed on the front end face of the fixed body (11). The first spring (316) is sleeved on the outside of the limiting post (313). The two ends of the first spring (316) are fixedly connected to the mounting shell (315) and the limiting post (313) respectively. The front end of the limiting post (313) is fixedly connected to the handle (314). The lifting component is located in the through groove at the front end of the fixed body (11). The lifting component is connected to the locking block (312). The lower side of the front end of the locking block (312) is inclined.

9. The orthopedic joint puncture instrument for easy positioning according to claim 8, characterized in that, The lifting assembly includes a lifting plate (317) and a plurality of second springs (318). The lifting plate (317) is located in the through groove at the front end of the fixed body (11) and is in contact with the fixed body (11). The upper end of the lifting plate (317) is in contact with the locking block (312). The plurality of second springs (318) are located at the lower end of the lifting plate (317). The two ends of the second springs (318) are fixedly connected to the lifting plate (317) and the fixed body (11) respectively.

10. The orthopedic joint puncture instrument for easy positioning according to claim 9, characterized in that, The puncture assembly (33) is located at the upper end of an observation plate (323), and the puncture assembly (33) is slidably connected to the inner side of the limiting cylinder (324), and the puncture assembly (33) is in contact with the observation plate (323).

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