Nerve block puncture guide frame for orthopedic surgery

Abstract

The invention relates to the technical field of medical instruments, in particular to a nerve block puncture guide frame for orthopedic surgery. The angle fan is connected with the side part of the connecting frame, and an angle mark is arranged on the surface of the angle fan; the guiding device is rotationally arranged on the angle fan and is concentrically distributed with the angle fan, the extension line of the guiding device intersects with the length axis of the ultrasonic probe, the guiding device is used for penetrating and guiding a puncture needle, the guiding device is provided with a fixing bolt connected with the angle fan, and the fixing bolt can fix the position of the guiding device. And through the cooperation of the connecting frame, the angle fan and the guider, the requirements of different puncture environments can be quickly met by adjusting the position and orientation of the guider.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to a nerve block puncture guide frame for orthopedic surgery. Background Technology

[0002] Currently, during orthopedic surgery, in order to reduce patient pain, targeted anesthesia is performed on the corresponding nerves, which is a nerve block procedure that temporarily blocks the transmission of nerve impulses to achieve local pain relief or pain control.

[0003] Compared to manual puncture, ultrasound imaging and guide frames are now used to assist in the puncture operation in order to improve the accuracy of puncture. However, in actual operation, general guide frames can only be used for puncture at a single fixed puncture angle, which makes them inconvenient and inflexible to adjust. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention proposes a nerve block puncture guide frame for orthopedic surgery, which solves the technical problems of inconvenient operation and inflexible adjustment range during puncture in existing technologies.

[0005] The technical solution adopted in this invention is a nerve block puncture guide frame for orthopedic surgery, comprising: Connector; Angle fan, wherein the angle fan is connected to the side of the connecting frame and has an angle mark on its surface; The guide is rotatably mounted on the angle sector and concentrically distributed with the angle sector. The extension line of the guide intersects the length axis of the ultrasound probe. The guide is used to insert and guide the puncture needle. The guide is provided with a fixing bolt connected to the angle sector, which can fix the position of the guide.

[0006] This structure, supported by a connecting frame and combined with an angle fan, allows for convenient and quick adjustment of the guide's angle, thus facilitating puncture operations.

[0007] An adjustment component is provided between the angle fan and the guide, which can adjust and lock the angle position of the guide.

[0008] The adjustment assembly includes a worm gear and a worm wheel. The worm gear is rotatably connected to the angle fan via a connecting lug, and the worm wheel is coaxially connected to the guide and driven by the worm gear.

[0009] This structure, utilizing the self-locking mechanism between the worm gear and worm, allows for more convenient synchronous adjustment and locking, improving operational convenience and stability after adjustment.

[0010] The angle fan is also provided with a pushing component at its center, which can push the guide through a piercing motion.

[0011] The pushing component includes: a tube body, a first plug, an extension rod, an operating handle, and a conduit. The tube body is rotatably connected to the center of the angle fan, and the axis of the tube body is perpendicular to the extension line of the center of the angle fan. The first plug body is slidably sealed inside the tube body. The extension rod is concentrically connected to the first plug body and then slides out of the tube body and is connected to the guide. The operating handle is connected to the tube body through the conduit to form a hydraulic circuit, and the connection point between the conduit and the tube body is located at the end away from the extension rod. The operating handle can deliver hydraulic oil into the tube body.

[0012] This structure allows for the input or withdrawal of hydraulic oil into or from the tube by controlling the operating handle, thereby controlling the pushing or withdrawing of the puncture needle. Compared to manual pushing, it offers higher stability and reduces the need for manual intervention.

[0013] The operating handle includes a handle body, an oil supply device, and a switching valve. The handle body has a liquid groove. The oil supply device is located on the handle body and can pump hydraulic oil from the liquid groove. The number of switching valves is at least two and is used to control the switching of hydraulic oil pumping.

[0014] With this structure, the handle is easy for the operator to hold, the oil supply device can work with the liquid tank to deliver hydraulic oil accordingly, and the switching valve can switch the direction of hydraulic oil delivery in the liquid tank or directly cut off the liquid circuit to meet the hydraulic oil delivery needs under different conditions, that is, to meet the needs of different operating environments.

[0015] The liquid tank includes a pumping chamber, a group of side chambers, and a channel. The pumping chamber is located in the middle of the handle. The oil supply device extends into the pumping chamber. There are at least two groups of side chambers, which are symmetrically distributed on the left and right sides of the center line of the handle. Each side chamber group includes two bypass slots symmetrically opened with respect to the axis of the pumping chamber. There are at least two channels, which are symmetrically opened with respect to the axis of the pumping chamber on the handle. Each channel communicates with the side chamber group on the same side. The pumping chamber communicates with the side chamber group. The switching valve is located between the bypass slot and the channel on the same side. The upper channel is connected to the liquid circuit of the pipe body through a conduit, and the lower channel is connected to an external liquid storage container through a conduit.

[0016] This structure, when used with an oil supply unit and a switching valve, enables continuous and uninterrupted hydraulic oil delivery and filling. In other words, hydraulic oil is delivered simply by operating the oil supply unit, which reduces the reset gap, decreases the number of operations, and improves stability.

[0017] The oil supply device includes: a second plug, a connecting rod, and a handle. The second plug is slidably sealed inside the pumping chamber. The connecting rod is concentrically connected to the second plug and slidably seals through both ends of the handle. There are two handles, each connected to one end of the connecting rod.

[0018] This structure allows for a more continuous delivery of hydraulic oil simply by pressing the handle, in conjunction with the reciprocating motion of the second plug within the pumping chamber, making it easy to operate.

[0019] The switching valve includes: a valve body, a valve assembly, and a chamber. The chamber is located in the middle of the valve body. The valve body is rotatably sealed within the handle. The valve assembly has at least two valve bodies, and each valve assembly has two valve bodies. Adjacent valve assemblies are spaced 90° apart. The two valve bodies are connected to two bypass slots at the same horizontal level. One of the valve assemblies is a one-way drain valve, and the other valve assembly is a one-way inlet valve. When the valve assembly corresponds to the bypass slot, the valve body can communicate with the corresponding side cavity through the slot chamber.

[0020] This structure allows for switching the direction of hydraulic oil delivery or cutting off the delivery of hydraulic oil by rotating the valve body to correspond different valve groups to the pumping chamber. The operation is convenient, quick, and stable.

[0021] As can be seen from the above technical solution, the beneficial technical effects of the present invention are as follows: 1. By combining the connecting frame, angle fan, and guide, the position and orientation of the guide can be adjusted to quickly meet the needs of different puncture environments.

[0022] 2. The adjustment components can unify angle adjustment and position locking, forming a convenient and quick adjustment operation state, improving convenience and stability.

[0023] 3. The push component can be set up to operate the puncture needle more stably through continuous hydraulic oil extraction and extraction. At the same time, the hydraulic oil delivery direction can be switched according to different operating environments to achieve switching between pushing or extracting the puncture needle, or to limit the position of the puncture needle. Attached Figure Description

[0024] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0025] Figure 1 This is a schematic diagram of the overall structure of a nerve block puncture guide frame for orthopedic surgery according to the present invention; Figure 2 This is a schematic diagram of the structure of a nerve block puncture guide frame for orthopedic surgery according to the present invention, specifically a schematic diagram of the structure with adjustment components; Figure 3 This is a cross-sectional view of the structure of a nerve block puncture guide frame for orthopedic surgery according to the present invention; Figure 4 This is a cross-sectional view of the structure of a nerve block puncture guide frame for orthopedic surgery according to the present invention, with the operating handle at the midline. Figure 5 This is a schematic diagram of the structure of a nerve block puncture guide valve for orthopedic surgery according to the present invention; Figure 6 This is a schematic diagram of the structure of a nerve block puncture guide frame for orthopedic surgery according to the present invention, specifically a schematic diagram of the part connected to the ultrasound probe.

[0026] Figure label: Connecting bracket 1, angle fan 11, guide 12, limit ruler 121, retaining ring 122; Adjustment component 2, worm gear 21, worm wheel 22; Pushing component 3, pipe body 31, first plug 32, extension rod 33, operating handle 34, handle body 341, oil supply device 342, second plug 3421, connecting rod 3422, grip 3423, switching valve 343, valve body 3431, valve group 3432, one-way inlet valve 3432a, one-way drain valve 3432b, tank 3433, conduit 35; Pumping chamber 4, side chamber group 41, bypass groove 411, cavity 42. Detailed Implementation

[0027] The embodiments of the technical solution of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the technical solution of the present invention and are therefore intended to limit the scope of protection of the present invention.

[0028] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application should have the ordinary meaning as understood by one of ordinary skill in the art to which this invention pertains.

[0029] Example 1: like Figure 1 As shown, this embodiment provides a nerve block puncture guide for orthopedic surgery, comprising: Connector 1; Angle fan 11, angle fan 11 is connected to the side of connecting frame 1 and has an angle mark on its surface; The guide 12 is rotatably mounted on the angle sector 11 and is concentrically distributed with the angle sector 11. The extension line of the guide 12 intersects the length axis of the ultrasound probe. The guide 12 is used to insert and guide the puncture needle. The guide 12 is provided with a fixing bolt connected to the angle sector 11. The fixing bolt can fix the position of the guide 12.

[0030] The working principle of Example 1 is explained in detail below: The connecting bracket 1 is used to connect with the ultrasound probe so that the position of the puncture needle can be observed with ultrasound imaging during the puncture operation, thereby improving the accuracy. The angle mark set on the angle sector 11 can be used to adjust the angle orientation of the guide 12, thereby adjusting the puncture angle according to the location of the nerve block point. After the adjustment is completed, the guide 12 can be fixed with a fixing bolt to keep its position and angle fixed during the puncture process, so as to prevent the guide 12 from moving and affecting the puncture. The fixing bolt can be a bolt, which is tightened by rotating and abutting against the angle sector 11 for limiting. Alternatively, a pin can be used for limiting.

[0031] In this application, the guide 12 specifically refers to a track structure through which the puncture needle can pass, thereby guiding and limiting the puncture needle and forcing the puncture needle to move in the correct direction during puncture.

[0032] In practice, the ultrasound probe is already clamped and fixed using an external bracket. Therefore, for those skilled in the art, the ultrasound probe can be understood as a stable fixed surface that does not require human control or hand-holding. Thus, it is feasible to connect the ultrasound probe with a connecting frame to form a stable support structure. The connecting frame refers to a structure that uses a clamp or similar structure to form a connection and clamp with the ultrasound probe. Of course, other more convenient fixing structures can also be used for connection.

[0033] Example 2: like Figure 1-2 As shown, the only difference in technical features compared to Embodiment 1 is that an adjustment component 2 is provided between the angle fan 11 and the guide 12, and the adjustment component 2 can adjust and lock the angle position of the guide 12.

[0034] The adjustment assembly 2 includes a worm gear 21 and a worm wheel 22. The worm gear 21 is rotatably connected to the angle fan 11 via a connecting lug, and the worm wheel 22 is coaxially connected to the guide 12 and is driven by the worm gear 21.

[0035] Apart from the above, the rest of the structure is exactly the same as in Example 1.

[0036] The working principle of Example 2 is explained in detail below: Specifically, to further improve the ease of adjustment and the stability of the limit position of the guide 12, the worm 21 can be manually rotated during adjustment. The worm 21 drives the worm wheel 22 according to the direction of rotation, thereby using the worm wheel 22 to drive the guide 12 to rotate and adjust the angle. After the adjustment is completed, due to the self-locking characteristics between the worm wheel 22 and the worm 21, the position of the guide 12 will be in a relatively locked state, so as to achieve quick adjustment and direct locking after the adjustment is completed.

[0037] In some other embodiments, in order to avoid the guide 12 from shifting due to accidental contact with the worm gear 21 during puncture, a corresponding cover can be provided on the angle fan 11 to shield the entire adjustment assembly 2 after the guide 12 is adjusted, thereby preventing the influence of accidental external contact.

[0038] Example 3: like Figure 1-6 As shown, the only difference in technical features compared to Embodiment 2 is that a pushing component 3 is also provided at the center of the angle fan 11, which can push the guide 12 through a piercing motion.

[0039] The push assembly 3 includes: a tube body 31, a first plug 32, an extension rod 33, an operating handle 34, and a conduit 35. The tube body 31 is rotatably connected to the center of the angle fan 11, and the axis of the tube body 31 is perpendicular to the extension line of the center of the angle fan 11. The first plug 32 is slidably sealed inside the tube body 31. The extension rod 33 is concentrically connected to the first plug 32 and then slides out of the tube body 31 and is connected to the guide 12. The operating handle 34 is connected to the tube body 31 through the conduit 35 to form a hydraulic circuit, and the connection point between the conduit 35 and the tube body 31 is located at the end away from the extension rod 33. The operating handle 34 can deliver hydraulic oil into the tube body 31.

[0040] Apart from the above, the rest of the structure is exactly the same as in Example 1.

[0041] The working principle of Example 3 is explained in detail below: During the puncture procedure, to improve the stability and continuity of the puncture, the guide 12 can be pushed by the pushing component 3. The cooperation of the operating handle 34 and the catheter 35 can pump hydraulic oil into the tube body 31, thereby causing the first plug 32 to move within the tube body 31 according to the flow of hydraulic oil. This, in turn, drives the extension rod 33 and the guide frame to move, achieving the pushing or withdrawing operation of the puncture needle. Compared with manual pushing or pushing by electronic control components such as motors or electronically controlled telescopic rods, the pushing operation is more convenient and does not require manual intervention. In particular, it can reduce the risk of muscle fatigue caused by maintaining the corresponding posture during manual operation. On the other hand, it can reduce the impact of electronic control components on the imaging of the ultrasound probe, improve the image stability and clarity during puncture, and due to the almost incompressibility of the liquid, it can also reduce the risk of displacement caused by external force compared with manual pushing, thus improving the safety and stability of the puncture.

[0042] The operating handle 34 includes: handle body 341, oil supply device 342 and switching valve 343. The handle body 341 has a liquid groove. The oil supply device 342 is located on the handle body 341 and can pump hydraulic oil in the liquid groove. The number of switching valves 343 is at least two and is used to control the switching of hydraulic oil pumping.

[0043] The handle 341 of the operating handle 34 is easy for the operator to hold and for installing corresponding structural accessories. The oil supply device 342 is used in conjunction with manual pressing to input external hydraulic oil into the tube 31 through the liquid tank and conduit 35, or to extract hydraulic oil from the tube 31 to meet the needs of the puncture needle extraction and delivery operation. The switching valve 343 is used to switch the flow direction of the liquid in the liquid tank, or to directly cut off the liquid circuit of the liquid tank to meet the corresponding operating environment requirements, such as the need for puncture needle extraction and delivery or the need for relative stability when injecting anesthetic solution.

[0044] The liquid tank includes a pumping chamber 4, a side chamber group 41, and a channel 42. The pumping chamber 4 is located in the middle of the handle 341, and the oil supply device 342 extends into the pumping chamber 4. There are at least two side chamber groups 41, which are symmetrically distributed on the left and right sides of the center line of the handle 341. The side chamber group 41 includes two bypass grooves 411 symmetrically opened with respect to the axis of the pumping chamber 4. There are at least two channels 42, which are symmetrically opened with respect to the axis of the pumping chamber 4 on the handle 341. The channel 42 is connected to the side chamber group 41 on the same side. The pumping chamber 4 is connected to the side chamber group 41. The switching valve 343 is located between the bypass groove 411 and the channel 42 on the same side. The upper channel 42 is connected to the liquid path of the pipe body 31 through the conduit 35, and the lower channel 42 is connected to the external liquid storage container through the conduit 35.

[0045] When the pumping chamber 4 works with the oil supply device 342, it mainly serves to push the hydraulic oil. The side chamber group 41 and the cavity 42 work together with the pumping chamber 4 to form a continuous closed hydraulic channel. When the oil supply device 342 is operated to generate a corresponding positive or negative pressure in the pumping chamber 4, the hydraulic oil can be delivered in the corresponding direction to achieve the effect of pushing or withdrawing the puncture needle.

[0046] In this embodiment, two sets of side cavity groups 41 are used. This, in conjunction with the operation of the oil supply device 342, allows hydraulic oil to be driven in both directions, i.e., when operating the oil supply device 342 and when resetting the oil supply device 342. This ensures that the hydraulic oil supply and discharge are continuous, improving the efficiency and continuity of operation and reducing the blank reset waiting time. In other embodiments, only one set of side cavity groups 41 may be set, i.e., hydraulic oil is pumped out only once per operation.

[0047] The oil supply device 342 includes: a second plug body 3421, a connecting rod 3422, and a handle 3423. The second plug body 3421 is slidably sealed in the pumping chamber 4. The connecting rod 3422 is concentrically connected to the second plug body 3421 and slidably sealed through both ends of the handle body 341. There are two handles 3423, which are respectively connected to both ends of the connecting rod 3422.

[0048] When operating the oil supply device 342, the operator holds the handle 341 by hand, with their fingers gripping the handles 3423 on both sides of the handle 341. Due to the linkage 3422, when the operator presses one side of the handle 3423, the other side of the handle 3423 will move synchronously in the pressing direction. At this time, the second plug 3421 moves synchronously in the pumping chamber 4, and forms a pushing and squeezing pressure and a negative pressure on both sides of the pumping chamber 4 according to the direction of movement. In this way, the hydraulic oil on the pushing and squeezing side can be discharged and the hydraulic oil under negative pressure can be extracted by the side cavity group 41 and the cavity 42 on the pre-side. With the switching valve 343 restricting the flow direction of the hydraulic oil in the cavity 42, the actual discharge side and extraction side of the hydraulic oil can be switched to achieve the effect of controlling the movement of the puncture needle.

[0049] Once one side of the grip 3423 is fully in contact with the handle 341, press the other side of the grip 3423 repeatedly, and repeat the above operation.

[0050] The switching valve 343 includes: a valve body 3431, a valve assembly 3432, and a chamber 3433. The chamber 3433 is located in the middle of the valve body 3431. The valve body 3431 is rotatably sealed inside the handle 341. The number of valve assemblies 3432 is at least two, and the number of valve bodies 3431 in a single valve assembly 3432 is two. Adjacent valve assemblies 3432 are spaced 90° apart. The two valve bodies 3431 are connected one-to-one with two bypass slots 411 at the same horizontal level. One valve assembly 3432 is a one-way drain valve 3432b, and the other valve assembly 3432 is a one-way inlet valve 3432a. When valve assembly 3432 corresponds to bypass groove 411, valve body 3431 can communicate with cavity 42 on the corresponding side through groove chamber 3433.

[0051] The valve body 3431 directly connects the cavity 42 and the bypass groove 411. In contrast, the two bypass grooves 411 on the same side of the pumping cavity 4 are not connected to each other, and the two bypass grooves 411 respectively connect the two sides of the space separated by the second plug 3421 in the pumping cavity 4.

[0052] When it is necessary to control the movement of the puncture needle, such as to perform a pushing operation, the positions of the two valve bodies 3431 are adjusted. The valve body 3431 on the side closer to the conduit 35 has a valve group 3432 of one-way drain valve 3432b corresponding to the pumping chamber 4, while the other valve body 3431 has a valve group 3432 of one-way inlet valve 3432a corresponding to the pumping chamber 4. At this time, when the second plug 3421 moves in the pumping chamber 4, the positive pressure side of the pumping chamber 4 will output hydraulic oil through the valve group 3432 on the side of one-way drain valve 3432b, that is, input into the tube body 31 through the conduit 35. The negative pressure side of the pumping chamber 4 will draw hydraulic oil from the external reservoir and replenish the pumping chamber 4 through the valve group 3432 on the side of one-way inlet valve 3432a. Afterwards, when the second valve body 3431 moves in the opposite direction, the aforementioned positive and negative pressure hydraulic oil drawing and discharging state is formed, thus realizing the continuous delivery of hydraulic oil.

[0053] Conversely, when it is necessary to remove the puncture needle, the valve group 3432 of the valve body 3431 on the side closer to the catheter 35 is switched to the pumping chamber 4, which is the one-way inlet valve 3432a. The other valve body 3431 is the one-way drain valve group 3432 corresponding to the pumping chamber 4. At this time, the movement of the second plug 3421 will draw hydraulic oil from the tube body 31.

[0054] When it is necessary to restrict the position of the puncture needle, the one-way inlet valve 3432a or one-way outlet valve 3432b on both valve bodies 3431 are simultaneously positioned in the pumping chamber 4, so that the second plug 3421 cannot move within the pumping chamber 4, thus achieving the limiting effect.

[0055] In some embodiments, the number of valve groups 3432 on a single valve body 3431 is four, with valve groups 3432 of one-way drain valve 3432b and one-way inlet valve 3432a distributed at intervals. In this way, the current liquid circuit state can be switched by rotating 90° once. The corresponding valve body 3431 is also provided with a rotating handle that extends from the handle body 341. The handle can be provided with an indicator to help the operator judge the current liquid circuit state. In some embodiments, the valve body 3431 can also be directly controlled by a motor. Since the operating handle 34 is far away from the ultrasonic probe, the motor here will not affect the ultrasonic probe. By setting the opening and closing rotation logic of the motor, that is, the corresponding control circuit, the state of the valve body 3431 can be switched more stably and accurately directly through control buttons or computers, avoiding errors during manual switching operations.

[0056] Example 4: like Figure 6 As shown, the only technical difference compared to Embodiment 3 is that the guide 12 is also provided with a limiting ruler 121. The other end of the limiting ruler 121 is provided with a retaining ring 122 that can be engaged with the tube body 31. The length of the limiting ruler is 5cm-25cm. At the same time, the guide 12 and the extension rod 33 are detachably connected, such as by using bolts and buckles. This method can further target the different puncture depths of the limiting ruler according to the different puncture positions, and use the limiting cooperation between the retaining ring and the tube body 31 to directly limit the puncture depth of the puncture needle, thereby achieving a more convenient puncture operation.

[0057] Apart from that, the rest of the structure is exactly the same as in Example 3.

[0058] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention 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 or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered within the scope of the claims and specification of the present invention.

Claims

1. A nerve block puncture guide frame for orthopedic surgery, characterized in that, include: Connector (1); Angle fan (11), the angle fan (11) is connected to the side of the connecting frame (1) and has an angle mark on its surface; The guide (12) is rotatably mounted on the angle fan (11) and is concentrically distributed with the angle fan (11). The extension line of the guide (12) intersects the length axis of the ultrasound probe. The guide (12) is used to insert and guide the puncture needle. The guide (12) is provided with a fixing bolt connected to the angle fan (11). The fixing bolt can fix the position of the guide (12).

2. The nerve block puncture guide frame for orthopedic surgery according to claim 1, characterized in that, An adjustment component (2) is provided between the angle fan (11) and the guide (12), and the adjustment component (2) can adjust and lock the angle position of the guide (12).

3. A nerve block puncture guide frame for orthopedic surgery according to claim 2, characterized in that, The adjustment assembly (2) includes a worm (21) and a worm wheel (22). The worm (21) is rotatably connected to the angle fan (11) via a connecting lug. The worm wheel (22) is coaxially connected to the guide (12) and is drivenly connected to the worm (21).

4. A nerve block puncture guide frame for orthopedic surgery according to claim 2, characterized in that, The center of the angle fan (11) is also provided with a push component (3), which can puncture and push the guide (12).

5. A nerve block puncture guide frame for orthopedic surgery according to claim 4, characterized in that, The pushing component (3) includes: a tube (31), a first plug (32), an extension rod (33), an operating handle (34), and a conduit (35). The tube (31) is rotatably connected to the center of the angle fan (11), and the axis of the tube (31) is perpendicular to the extension line of the center of the angle fan (11). The first plug (32) is slidably sealed inside the tube (31). The extension rod (33) is concentrically connected to the first plug (32) and then slides out of the tube (31) and is connected to the guide (12). The operating handle (34) is connected to the tube (31) through the conduit (35) to form a fluid circuit, and the connection point between the conduit (35) and the tube (31) is located at the end away from the extension rod (33). The operating handle (34) can deliver hydraulic oil into the tube (31).

6. A nerve block puncture guide frame for orthopedic surgery according to claim 5, characterized in that, The operating handle (34) includes: handle body (341), oil supply device (342) and switching valve (343). The handle body (341) has a liquid groove. The oil supply device (342) is located on the handle body (341) and can pump hydraulic oil in the liquid groove. The number of switching valves (343) is at least two and is used to control the switching of hydraulic oil pumping.

7. A nerve block puncture guide frame for orthopedic surgery according to claim 6, characterized in that, The liquid tank includes a pumping chamber (4), a set of side chambers (41), and channels (42). The pumping chamber (4) is located in the middle of the handle (341), and the oil supply device (342) extends into the pumping chamber (4). The number of the set of side chambers (41) is at least two and they are symmetrically distributed on the left and right sides of the center line of the handle (341). The set of side chambers (41) includes two bypass slots (411) symmetrically opened with respect to the axis of the pumping chamber (4). The number of channels (42) is at least two. The pumping chamber (4) is symmetrically opened on the handle (341) along the axis of the pumping chamber (4). The chamber (42) is connected to the side chamber group (41) on the same side. The pumping chamber (4) is connected to the side chamber group (41). The switching valve (343) is located between the bypass groove (411) and the chamber (42) on the same side. The upper chamber (42) is connected to the liquid path of the pipe body (31) through the conduit (35). The lower chamber (42) is connected to the external liquid storage container through the conduit (35).

8. A nerve block puncture guide frame for orthopedic surgery according to claim 7, characterized in that, The oil supply device (342) includes: a second plug (3421), a connecting rod (3422) and a handle (3423). The second plug (3421) is slidably sealed in the pumping chamber (4). The connecting rod (3422) is concentrically connected to the second plug (3421) and slidably sealed through both ends of the handle (341). There are two handles (3423) and they are respectively connected to both ends of the connecting rod (3422).

9. A nerve block puncture guide frame for orthopedic surgery according to claim 6, characterized in that, The switching valve (343) includes: a valve body (3431), a valve assembly (3432), and a chamber (3433). The chamber (3433) is located in the middle of the valve body (3431). The valve body (3431) is rotatably sealed within the handle (341). The valve assembly (3432) has at least two valve bodies (3431) and each valve assembly (3432) has two valve bodies (3431). Adjacent valve assemblies (3432) are spaced 90° apart. The two valve bodies (3431) are connected one-to-one with two bypass slots (411) at the same horizontal level. One valve assembly (3432) is a one-way drain valve (3432b), and the other valve assembly (3432) is a one-way inlet valve (3432a). When the valve assembly (3432) corresponds to the bypass groove (411), the valve body (3431) can communicate with the cavity (42) on the corresponding side through the groove chamber (3433).

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