Marrow cavity puncture gun with auxiliary guiding function and operation method of marrow cavity puncture gun

Abstract

The invention provides a marrow cavity puncture gun with an auxiliary guiding function and an operation method thereof, and belongs to the technical field of puncture guns, the marrow cavity puncture gun comprises a positioning sleeve, an operation sleeve, an adjusting sleeve, an elastic force storage assembly and a puncture needle assembly, and further comprises an operation gear ring piece rotationally arranged at one end of the positioning sleeve; the threaded section of the adjusting sleeve penetrates through the operation gear ring piece and is in threaded fit with the operation gear ring piece. The adjusting sleeve is in sliding fit with the positioning sleeve; the rotary measuring piece is erected on the outer side of the positioning sleeve and is in transmission connection with the operation gear ring piece through a detection gear; the first pressing sensing piece is arranged on the outer side of the top end of the operation sleeve; the second pressing sensing piece is arranged at the other end of the positioning sleeve; and the voice prompt system is used for carrying out voice prompt operation guidance according to the obtained sensing information of the first pressing sensing piece and the second pressing sensing piece and the rotation detection information of the rotation measuring piece. The auxiliary guiding device can guide an operator to execute puncture operation in sequence according to the operation state of the operator.

Description

Technical Field

[0001] The present invention relates to the technical field of puncture guns, and in particular to a bone marrow cavity puncture gun with an auxiliary guidance function. Background Art

[0002] The intraosseous puncture gun is an invasive instrument designed specifically for emergency medical scenarios, primarily used to quickly establish an intraosseous drug delivery route. Its structure consists of a puncture needle, a safety locking device, and an ergonomic handle. The needle is made of medical-grade stainless steel, and the surface is specially coated to reduce puncture resistance. The device penetrates the bone cortex to enter the intraosseous cavity, utilizing the rich capillary network in the bone marrow to achieve rapid absorption of drugs or fluids. It is particularly suitable for situations requiring immediate medication, such as cardiac arrest, shock, and burns. It is faster and has a higher success rate than traditional intravenous access. Strict sterility and positioning are required during the operation. The proximal tibia, distal tibia, and proximal humerus are often selected as puncture points. Rapid rehydration and drug delivery can be achieved in conjunction with an infusion device. Its portability, ease of use, and low risk of complications give it significant advantages in pre-hospital emergency care, battlefield medical care, and pediatric emergency care, making it an important auxiliary tool in the modern emergency care system.

[0003] Existing intraosseous puncture guns consist of multiple interlocking sleeves and a flexible member. Pressing a sleeve unlocks the flexible member, triggering the gun to fire the puncture needle. However, these intraosseous puncture guns are dangerous to use, and incorrect operation techniques or sequence can easily lead to injury to oneself or others. Summary of the Invention

[0004] In order to solve the above technical problems, the present invention provides a bone marrow cavity puncture gun with an auxiliary guidance function, which can guide the operator to perform the puncture operation in sequence according to the operator's operating status.

[0005] The present invention provides the following technical solutions: A bone marrow puncture gun with an auxiliary guidance function includes a positioning sleeve, an operating sleeve, an adjustment sleeve, an elastic force storage component, and a puncture needle assembly; one end of the operating sleeve penetrates the adjustment sleeve; one end of the adjustment sleeve penetrates the positioning sleeve; the elastic force storage component and the puncture needle assembly are arranged in the operating sleeve, and by pressing the operating sleeve, the elastic force storage component is triggered to push the puncture needle assembly to perform puncture; Also includes: An operating gear ring is rotatably mounted on one end of the positioning sleeve; one section of the adjusting sleeve is a threaded section, which passes through the operating gear ring and is threadably engaged with the operating gear ring; the adjusting sleeve and the positioning sleeve are slidably engaged along the axial direction; A limiting member passes through one end of the inner sleeve, with its bottom abutting against the inner top of the pressing sleeve for limiting position; A rotating measuring member is fixedly mounted on the outer side of the positioning sleeve and is connected to the operating gear ring member through a detection gear transmission; A first pressure sensor is provided on the outer side of the top end of the operating sleeve; a second pressure sensor, disposed at the other end of the positioning sleeve; The voice prompt system is arranged on the top of the pressing sleeve and provides voice prompt operation guidance based on the acquired sensing information of the first pressing sensor and the second pressing sensor, as well as the rotation detection information of the rotating measuring member.

[0006] Preferably, a sliding strip is provided on the outer side of the adjusting sleeve along the axial direction, and a sliding groove cooperating with the sliding strip is provided on the inner side wall of the positioning sleeve; The operating gear ring member comprises: A driving gear ring is rotatably arranged at one end of the positioning sleeve; a threaded section of the adjusting sleeve passes through the driving gear ring and is threadably engaged with the driving gear ring; The adjusting ring is fixedly arranged on the top of the driving gear ring.

[0007] Preferably, the rotation measuring member comprises: A frame plate is fixedly arranged on one side of the positioning sleeve; the detection gear is rotatably arranged on the top of the frame plate; the detection gear is engaged with the driving gear ring; The encoder is arranged at the bottom of the frame plate, and the detection shaft thereof is transmission-connected with the detection gear.

[0008] Preferably, the first pressure sensor comprises: a first pressure sensor, disposed on the outer side of the top end of the operating sleeve; The pressing ball is arranged on the outer side of the top end of the operating sleeve and covers the first pressure sensor.

[0009] Preferably, the second pressure sensor includes a detection ring and two symmetrically arranged elastic parts; the other end of the positioning sleeve is provided with two limit grooves; the elastic part includes a moving block, a second pressure sensor and a connecting spring; the moving block is slidably arranged in the limit groove; the second pressure sensor is arranged at the bottom of the limit groove; the two ends of the connecting spring are respectively connected to the moving block and the second pressure sensor; one end of the detection ring has an annular baffle, which is sleeved on the other end of the positioning sleeve and fixedly connected to the two moving blocks.

[0010] Preferably, the adjusting sleeve has two connected channels of different radii, with a step surface formed at the connecting point; the operating sleeve includes: A rotating sleeve is rotatably disposed in the adjusting sleeve, one end of which is a ball screw end, which is threadedly engaged with the adjusting sleeve, and the end of one end is connected to the step surface through a limit spring; A pressing sleeve, one end of which is rotatably engaged with the other end of the rotating sleeve, and the other end of which is closed; the first pressure sensor is arranged outside the other end of the pressing sleeve; The elastic force storage component includes: an inner sleeve, one end of which is closed and disposed inside the pressing sleeve and the rotating sleeve; A pressure accumulator spring is disposed in the inner sleeve, with one end thereof abutting against one end of the inner sleeve; the puncture needle assembly is disposed in the adjustment sleeve, with an end thereof abutting against the other end of the pressure accumulator spring; The limiting plate is fixedly arranged at the bottom of the rotating sleeve. In the initial state, the top plate surface of the limiting plate limits the puncture needle assembly and one end of the inner sleeve, and the pressure storage spring is in the pressure storage state.

[0011] Preferably, the rotating sleeve and the pressing sleeve are rotationally matched through an inverted trapezoidal annular guide rail; the driving gear ring and one end of the positioning sleeve are rotationally matched through an inverted trapezoidal annular guide rail.

[0012] Preferably, the puncture needle assembly includes a puncture needle end portion having a drainage assembly and a puncture needle body connected to the puncture needle end portion; the limiting plate is limited to a step surface formed by the puncture needle end portion and the puncture needle body; The limiting member is a limiting rod, which penetrates the pressing sleeve transversely, and the bottom of the limiting rod abuts against one end of the inner sleeve.

[0013] Preferably, the voice prompt system obtains the values ​​of the encoder, the second pressure sensor and the first pressure sensor in sequence, and gives voice prompts for adjusting the puncture depth by rotating the adjustment ring to adjust the position of the positioning sleeve, determining the puncture site, and removing the limit rod and pressing the pressing ball.

[0014] The present invention also provides a method for operating a bone marrow cavity puncture gun with an auxiliary guidance function, comprising the following steps: When the pressure ball is pressed for the first time, the voice prompt system starts the voice guidance program based on the pressure detected by the first pressure sensor. The voice prompt system gives a voice prompt of "Starting the auxiliary guidance program of the bone marrow puncture gun" and repeats the safety angle prompt of "Keep the gun muzzle downward" until both second pressure sensors are pressurized and the pressure difference does not exceed the threshold value, at which time the safety angle prompt stops; A voice prompt system is used to give a voice reminder of "turn the adjustment ring to adjust the position of the positioning sleeve". A specific depth prompt is given according to the rotation amount of the measuring piece. After waiting for a preset time, the voice prompt system gives the instruction of "move to the target puncture site" until the pressure value detected by the second sensor exceeds the preset pressure value, and then stops the voice prompt; The voice prompt system gives a voice prompt of "pull out the limit rod"; The voice prompt system gives a voice prompt of "press the pressing ball again, press the pressing sleeve into the adjusting sleeve, and fire the puncture needle". The voice prompt stops after the first pressure sensor is pressurized again; The voice prompt system will give a voice prompt of "withdraw the syringe to confirm whether the puncture is successful"; the syringe and puncture needle assembly are connected and withdrawn, and the bone marrow fluid is drawn out to confirm that the position is correct and the puncture is successful; After waiting for a preset time, the voice prompt system will give a voice prompt of "pull out the needle core and fix the puncture needle", and the needle core will be pulled out and the puncture needle assembly will be fixed; After waiting for the preset time, the voice prompt system will give the voice prompt of "flush the tube with normal saline" and flush the tube with normal saline; After waiting for a preset time, the voice prompt system will give a voice prompt of "connecting the puncture needle assembly to the infusion set", and the puncture needle assembly is connected to the infusion set.

[0015] Beneficial effects of the present invention: The present invention proposes a bone marrow cavity puncture gun with an auxiliary guidance function. The operator starts the workflow by pressing the first press sensor and drives the adjusting sleeve to slide axially by operating the gear ring, thereby controlling the needle insertion depth. The sliding fit design of the adjusting sleeve and the positioning sleeve not only ensures the stable guidance of the puncture needle, but also enables adaptive puncture of different bone structures through the rotation adjustment of the threaded section. The rotating measuring part fixedly mounted on the outside of the positioning sleeve forms a mechanical transmission chain through the detection gear and the operating gear ring, which can monitor and record the rotation angle of the gear ring in real time, and then convert it into the precise displacement of the puncture needle. This double-insurance measurement mechanism effectively avoids the displacement error that may be caused by manual operation.

[0016] This device features dual pressure sensors: a first sensor, located outside the top of the operating sleeve, detects activation and triggering of the device; a second sensor, located at the end of the positioning sleeve, monitors contact with the surface to be punctured. Data from both sensors is wirelessly transmitted to a voice prompt system located at the top of the pressure sleeve. This system simultaneously receives the rotation angle data from the rotating measuring element and, after processing using a built-in algorithm, provides step-by-step voice guidance throughout the puncture process. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is an overall assembly diagram of a bone marrow puncture gun with an auxiliary guidance function according to an embodiment of the present invention; Figure 2This is a partial internal structural diagram of a bone marrow puncture gun with an auxiliary guidance function according to an embodiment of the present invention; Figure 3 This is a partial structural diagram of the second pressure sensor of the bone marrow puncture gun with auxiliary guidance function according to an embodiment of the present invention; Figure 4 This is a cross-sectional view of the internal structure of a bone marrow puncture gun with an auxiliary guidance function according to an embodiment of the present invention; Figure 5 This is a diagram showing the assembly state of the limit rod of the bone marrow puncture gun with auxiliary guidance function according to an embodiment of the present invention; Figure 6 This is a flow chart of auxiliary guidance for a bone marrow puncture gun according to an embodiment of the present invention.

[0018] Among them, 1. limit rod; 2. adjustment sleeve; 3. detection gear; 4. frame plate; 5. positioning sleeve; 6. detection ring; 7. connecting spring; 8. encoder; 9. drive gear ring; 10. pressing sleeve; 11. pressing ball; 12. rotating sleeve; 13. inner sleeve; 14. pressure storage spring; 15. limit spring; 16. limit plate; 17. puncture needle end; 18. puncture needle body; 19. adjustment ring; 20. moving block; 21. second pressure sensor. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0020] To make the objectives, technical solutions, and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. In the description of the present invention, it should be understood that terms such as "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate positions or locations based on the positions or locations shown in the accompanying drawings. These terms are intended solely to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting the present invention. The terms "first" and "second" are used for descriptive purposes only and should not be construed to indicate or imply relative importance or to implicitly specify the number of the technical features referred to. Therefore, features designated "first" or "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0021] Example Existing intramedullary puncture guns utilize a multi-sleeve nested design with an elastic energy storage mechanism. The working principle is that the sleeves are pressed step by step to compress an elastic element (typically a high-strength spring or elastic polymer). When a critical pressure is reached, the safety mechanism is triggered to release, propelling the puncture needle into the intramedullary cavity at high speed (typically 2-3 m / s). While this design allows for rapid puncture, it carries significant safety risks: the operator must precisely control the sequence of pressing the multiple sleeves. Triggering the subsequent sleeves before fully locking the previous one can cause the elastic element to release unexpectedly, leading to non-directional discharge of the puncture needle. Clinical cases have shown cases in which operator error has caused the needle to deviate from its intended path, resulting in injuries to the operator's hand or adjacent tissue. Furthermore, the psychological stress of medical staff in emergency situations can further increase the risk of misuse. While some newer puncture guns have incorporated double-locking or electronic safety systems, most primary healthcare institutions still use traditional mechanical mechanisms, with safety warnings relying solely on color coding or simple text instructions, lacking proactive safety mechanisms. Industry standards recommend adding a pressure-sensitive safety valve or infrared positioning auxiliary system, and emphasize that operators need to undergo standardized simulation training to minimize the risk of use. To this end, this embodiment proposes a bone marrow puncture gun with auxiliary guidance function, such as Figure 1 As shown, it specifically includes a positioning sleeve 5, an operating sleeve, an adjusting sleeve 2, an elastic force storage component and a puncture needle component; one end of the operating sleeve is inserted into the adjusting sleeve 2; one end of the adjusting sleeve 2 is inserted into the positioning sleeve 5; the elastic force storage component and the puncture needle component are arranged in the operating sleeve, and by pressing the operating sleeve, the elastic force storage component is triggered to push the puncture needle assembly to perform puncture.

[0022] In order to increase safety, the present invention sets up multiple types of sensor components and rotation measurement components to further obtain the actual operation process and provide timely reminders and monitoring feedback at each operation stage. Figure 1 and Figure 3 As shown, Figure 3 This is a partial structural diagram of the second pressure sensor, which specifically includes an operating gear ring, a rotating measuring component, a first pressure sensor, a second pressure sensor, and a voice prompt system.

[0023] The operating gear ring is rotatably mounted on one end of the positioning sleeve 5. A threaded section of the adjusting sleeve 2 passes through the operating gear ring and engages with it. The adjusting sleeve 2 and the positioning sleeve 5 slide along the axis. A sliding strip is provided on the outer side of the adjusting sleeve 2 along the axis, and a sliding groove is provided on the inner sidewall of the positioning sleeve 5 to engage with the sliding strip. The operating gear ring includes a driving gear ring 9 and an adjusting ring 19. The driving gear ring 9 is rotatably mounted on one end of the positioning sleeve 5. The threaded section of the adjusting sleeve 2 passes through the driving gear ring 9 and engages with it. The adjusting ring 19 is fixedly mounted on the top of the driving gear ring 9. A rotating measuring unit is fixedly mounted on the outer side of the positioning sleeve 5 and is connected to the operating gear ring via a detection gear 3. This embodiment adopts a gear transmission mode and uses the gear rotation status and specific parameters of the threaded section of the adjusting sleeve 2 to convert the feed rate of the adjusting sleeve 2 within the positioning sleeve 5. Furthermore, the rotating measuring unit includes a frame plate 4 and an encoder 8. The frame plate 4 is fixedly set on one side of the positioning sleeve 5; the detection gear 3 is rotatably set on the top of the frame plate 4; the detection gear 3 is engaged with the drive gear ring 9; the encoder 8 is set at the bottom of the frame plate 4, and its detection shaft is transmission connected with the detection gear 3.

[0024] Further, such as Figure 1 As shown, the first pressure sensor is arranged outside the top of the operating sleeve; the first pressure sensor includes a first pressure sensor and a pressing ball 11. The first pressure sensor is arranged outside the top of the operating sleeve; the pressing ball 11 is arranged outside the top of the operating sleeve, covering the first pressure sensor.

[0025] Further, such as Figure 2As shown, the second press sensor is arranged at the other end of the positioning sleeve 5; the second press sensor includes a detection ring 6 and two symmetrically arranged elastic members; the other end of the positioning sleeve 5 is provided with two limit grooves; the elastic member includes a moving block 20, a second pressure sensor 21 and a connecting spring 7; the moving block 20 is slidably arranged in the limit groove; the second pressure sensor 21 is arranged at the bottom of the limit groove; the two ends of the connecting spring 7 are respectively connected to the moving block 20 and the second pressure sensor 21; one end of the detection ring 6 has an annular baffle, which is sleeved on the other end of the positioning sleeve 5 and fixedly connected to the two moving blocks 20. The second press sensor presses the detection ring 6 to make the detection ring 6 completely fit with the target part, and when the pressure value obtained by the second pressure sensor 21 exceeds the threshold, that is, the annular baffle of the detection ring 6 is completely fitted with the positioning sleeve 5, the positioning of the positioning sleeve 5 is completed, so that the subsequent puncture needle can be launched.

[0026] The present invention also improves the internal structure and realizes a simpler triggering method of the puncture gun, such as Figure 2 and Figure 4 As shown, they are a three-dimensional view and a half-section front view of the internal structure diagram, wherein the adjusting sleeve 2 has two connected channels of different radii, and a step surface is formed at the connection point; the operating sleeve includes: a rotating sleeve 12, which is rotatably arranged in the adjusting sleeve 2, one end of which is a ball screw end, which is threadedly matched with the adjusting sleeve 2, and the end of one end is connected to the step surface through a limit spring 15; a pressing sleeve 10, one end of which is rotatably matched with the other end of the rotating sleeve 12, and the other end is closed; a first pressure sensor is arranged on the pressing sleeve 1 0 on the outside of the other end; the elastic force storage component includes: an inner sleeve 13, one end of which is closed and is arranged in the pressing sleeve 10 and the rotating sleeve 12; a pressure storage spring 14, which is arranged in the inner sleeve 13, and one end of which abuts against one end of the inner sleeve 13; the puncture needle assembly is arranged in the adjusting sleeve 2, and its end abuts against the other end of the pressure storage spring 14; a limiting plate 16, which is fixedly arranged at the bottom of the rotating sleeve 12, and in the initial state, its top plate surface limits the puncture needle assembly and one end of the inner sleeve 13, and the pressure storage spring 14 is in a pressure storage state. Further, the puncture needle assembly includes a puncture needle end 17 with a drainage assembly and a puncture needle body 18 connected to the puncture needle end 17; the limiting plate 16 is limited to the step surface formed by the puncture needle end 17 and the puncture needle body 18. One end of the inner sleeve 13 is limited by the limiting member and the inner top end of the pressing sleeve 10; as Figure 5 As shown, the limiting member is a limiting rod 1, which is inserted horizontally into the pressing sleeve 10, with its bottom abutting one end of the inner sleeve 13. To ensure stable rotational engagement and prevent separation, the rotating sleeve 12 and the pressing sleeve 10 are rotationally engaged via an inverted trapezoidal annular guide; the driving gear ring 9 and one end of the positioning sleeve 5 are also rotationally engaged via an inverted trapezoidal annular guide.

[0027] During operation, after the limit of the limit rod 1 is released, the pressing ball 11 is pressed, that is, the pressing sleeve 10 drives the rotating sleeve 12 to feed. Since the end is the ball screw end, it forms a threaded fit with the adjusting sleeve 2, and the rotation is passively performed, causing the limit plate 16 to turn away until the limit is released, and the puncture needle assembly is launched after the pressure storage spring 14 is depressurized.

[0028] The voice prompt system is set on the top of the pressing sleeve 10, and has a built-in processor and voice execution program. It provides voice prompts and operation instructions based on the sensor information obtained from the first pressing sensor and the second pressing sensor, as well as the rotation detection information of the rotating measuring part. The voice prompt system sequentially obtains the values ​​of the encoder 8, the second pressure sensor 21, and the first pressure sensor, and gives voice prompts for adjusting the position of the positioning sleeve 5 by rotating the adjustment ring 19 to adjust the insertion depth, the voice prompt for determining the puncture site, and the voice prompt for removing the limit rod 1 and pressing the pressing ball 11. Specifically, Figure 6 As shown:

[0029] S1: Press the pressing ball 11 for the first time, and start the voice guidance program of the voice prompt system according to the pressure obtained by the first pressure sensor. The voice prompt system gives a voice prompt of "Start the bone marrow cavity puncture gun auxiliary guidance program" and repeats the safety angle prompt of "Keep the muzzle down" until both second pressure sensors 21 are pressurized and the pressure value difference does not exceed the threshold value, and then stops the safety angle prompt.

[0030] S2: A voice prompt system is used to give a voice reminder of "turn the adjustment ring to adjust the position of the positioning sleeve". Turn the adjustment ring 19 to adjust the position of the positioning sleeve 5, and give a specific depth prompt according to the rotation amount of the rotating measuring member; S3: After waiting for a preset time, the voice prompt system gives the instruction of "move to the target puncture site" until the pressure value detected by the second sensor 21 exceeds the preset pressure value, and then stops the voice prompt.

[0031] S4: A voice prompt of “Pull out the limit rod” is given through the voice prompt system.

[0032] S5: A voice prompt of "press the pressing ball again, press the pressing sleeve into the adjusting sleeve, and fire the puncture needle" is given through the voice prompt system. The voice prompt stops after the first pressure sensor is pressurized again.

[0033] S6: The voice prompt system gives a voice prompt of "withdraw the syringe to confirm whether the puncture is successful"; the syringe is connected to the puncture needle assembly and withdrawn. The bone marrow fluid is drawn out to confirm that the position is correct and the puncture is successful.

[0034] S7: After waiting for a preset time, the voice prompt system gives a voice prompt of "pull out the needle core and fix the puncture needle", and the needle core is pulled out and the puncture needle assembly is fixed.

[0035] S8: After waiting for the preset time, the voice prompt system will give a voice prompt of "flush the tube with normal saline" and flush the tube with normal saline.

[0036] S9: After waiting for a preset time, a voice prompt of "connect the puncture needle assembly to the infusion set" is given through the voice prompt system, and the puncture needle assembly is connected to the infusion set.

[0037] Furthermore, if the operator fails to follow standard operating procedures (e.g., incorrect muzzle angle, insufficient pressure, excessive rotation angle, or abnormal needle insertion speed), the voice prompt system immediately issues a warning signal and provides guidance on corrective action. This triple-core mechanism (mechanical sensing + displacement monitoring + voice feedback) forms a closed-loop safety control system, enabling visual and audible management of key parameters during the puncture process. This reduces the error rate of traditional instruments from approximately 23% to below 0.7%, significantly improving the safety and accuracy of clinical procedures.

[0038] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A bone marrow cavity puncture gun with an auxiliary guidance function, comprising a positioning sleeve (5), an operating sleeve, an adjusting sleeve (2), an elastic force storage component and a puncture needle component; one end of the operating sleeve penetrates the adjusting sleeve (2); one end of the adjusting sleeve (2) penetrates the positioning sleeve (5); the elastic force storage component and the puncture needle component are arranged in the operating sleeve, and by pressing the operating sleeve, the elastic force storage component is triggered to push the puncture needle component to perform puncture; characterized in that, Also includes: An operating gear ring is rotatably arranged at one end of the positioning sleeve (5); one section of the adjusting sleeve (2) is a threaded section, and the threaded section of the adjusting sleeve (2) passes through the operating gear ring and is threadedly engaged with the operating gear ring; the adjusting sleeve (2) and the positioning sleeve (5) are slidably engaged along the axial direction; A limiting member passes through one end of the inner sleeve (13), with its bottom abutting against the inner top end of the pressing sleeve (10) for limiting position; A rotating measuring piece is fixedly mounted on the outside of the positioning sleeve (5) and is connected to the operating gear ring piece via a detection gear (3); A first pressure sensor is provided on the outer side of the top end of the operating sleeve; A second pressure sensor is provided at the other end of the positioning sleeve (5); A voice prompt system is arranged on the top of the pressing sleeve (10) and provides voice prompt operation guidance based on the acquired sensing information of the first pressing sensor and the second pressing sensor, as well as the rotation detection information of the rotating measuring part.

2. The bone marrow puncture gun with auxiliary guidance function according to claim 1, characterized in that: The outer side of the adjusting sleeve (2) is provided with a sliding strip along the axial direction, and the inner side wall of the positioning sleeve (5) is provided with a sliding groove that cooperates with the sliding strip; The operating gear ring member comprises: A driving gear ring (9) is rotatably arranged at one end of the positioning sleeve (5); a threaded section of the adjusting sleeve (2) passes through the driving gear ring (9) and is threadably engaged with the driving gear ring (9); An adjusting ring (19) is fixedly arranged on the top of the driving gear ring (9).

3. The bone marrow puncture gun with auxiliary guidance function according to claim 2, characterized in that: The rotating measuring member comprises: A frame plate (4) is fixedly arranged on one side of the positioning sleeve (5); the detection gear (3) is rotatably arranged on the top of the frame plate (4); the detection gear (3) is meshed with the driving gear ring (9); An encoder (8) is arranged at the bottom of the frame plate (4), and its detection shaft is in transmission connection with the detection gear (4).

4. The bone marrow puncture gun with auxiliary guidance function according to claim 3, characterized in that: The first pressure sensor comprises: a first pressure sensor, disposed on the outer side of the top end of the operating sleeve; A pressing ball (11) is arranged on the outside of the top end of the operating sleeve and covers the first pressure sensor.

5. The bone marrow puncture gun with auxiliary guidance function according to claim 4, characterized in that: The second pressure sensor comprises a detection ring (6) and two symmetrically arranged elastic members; the other end of the positioning sleeve (5) is provided with two limiting grooves; the elastic member comprises a moving block (20), a second pressure sensor (21) and a connecting spring (7); the moving block (20) is slidably arranged in the limiting groove; the second pressure sensor (21) is arranged at the bottom of the limiting groove; the two ends of the connecting spring (7) are respectively connected to the moving block (20) and the second pressure sensor (21); one end of the detection ring (6) has an annular baffle, which is sleeved on the other end of the positioning sleeve (5) and fixedly connected to the two moving blocks (20).

6. The bone marrow cavity puncture gun with auxiliary guidance function according to claim 5, characterized in that: The adjusting sleeve (2) has two connected channels of different radii, with a step surface formed at the connection point; the operating sleeve comprises: A rotating sleeve (12) is rotatably disposed in the adjusting sleeve (2), one end of which is a ball screw end, threadedly engaged with the adjusting sleeve (2), and an end portion of which is connected to the step surface via a limit spring (15); A pressing sleeve (10), one end of which is rotatably engaged with the other end of the rotating sleeve (12), and the other end of which is closed; the first pressure sensor is arranged outside the other end of the pressing sleeve (10); The elastic force storage component includes: An inner sleeve (13), one end of which is closed, and is disposed inside the pressing sleeve (10) and the rotating sleeve (12); A pressure accumulator spring (14) is disposed in the inner sleeve (13), with one end thereof abutting against one end of the inner sleeve (13); the puncture needle assembly is disposed in the adjustment sleeve (2), with an end thereof abutting against the other end of the pressure accumulator spring (14); The limiting plate (16) is fixedly arranged at the bottom of the rotating sleeve (12). In the initial state, the top plate surface of the limiting plate limits the puncture needle assembly and one end of the inner sleeve (13), and the pressure storage spring (14) is in a pressure storage state.

7. The bone marrow puncture gun with auxiliary guidance function according to claim 6, characterized in that: The rotating sleeve (12) and the pressing sleeve (10) are rotationally matched via an inverted trapezoidal annular guide rail; the driving gear ring (9) and one end of the positioning sleeve (5) are rotationally matched via an inverted trapezoidal annular guide rail.

8. The bone marrow puncture gun with auxiliary guidance function according to claim 6, characterized in that: The puncture needle assembly includes a puncture needle end (17) having a drainage assembly and a puncture needle body (18) connected to the puncture needle end (17); the limiting plate (16) is limited to a step surface formed by the puncture needle end (17) and the puncture needle body (18); The limiting member is a limiting rod (1), and the limiting rod (1) is laterally inserted into the pressing sleeve (10), and the bottom of the limiting rod abuts against one end of the inner sleeve (13).

9. The bone marrow puncture gun with auxiliary guidance function according to claim 8, characterized in that: The voice prompt system sequentially obtains the values ​​of the encoder (8), the second pressure sensor (21), and the first pressure sensor, and respectively gives a voice prompt for adjusting the puncture depth by rotating the adjustment ring (19) to adjust the position of the positioning sleeve (5), a voice prompt for determining the puncture site, and a voice prompt for removing the limit rod (1) and pressing the pressing ball (11).

10. A method for operating a bone marrow puncture gun with auxiliary guidance function according to any one of claims 4 to 9, characterized in that: The following steps are involved: When the pressing ball (11) is pressed for the first time, the voice guidance program of the voice prompt system is started according to the pressure obtained by the first pressure sensor. The voice prompt system gives a voice prompt of "starting the auxiliary guidance program of the bone marrow puncture gun" and repeats the safety angle prompt of "keeping the muzzle downward" until both second pressure sensors (21) are pressurized and the pressure value difference does not exceed the threshold value, and then stops the safety angle prompt; A voice prompt system is used to give a voice prompt of "turn the adjustment ring to adjust the position of the positioning sleeve" and to turn the adjustment ring (19) to adjust the position of the positioning sleeve (5), and a specific depth prompt is given according to the rotation amount of the rotating measuring member; After waiting for a preset time, the voice prompt system gives the instruction "move to the target puncture site" until the pressure value detected by the second sensor (21) exceeds the preset pressure value, and then stops the voice prompt; The voice prompt system gives a voice prompt of "pull out the limit rod"; The voice prompt system gives a voice prompt of "Press the pressing ball again, press the pressing sleeve into the adjusting sleeve, and fire the puncture needle." The voice prompt stops after the first pressure sensor is pressurized again; The voice prompt system will give a voice prompt of "withdraw the syringe to confirm whether the puncture is successful"; the syringe and puncture needle assembly are connected and withdrawn, and the presence of bone marrow fluid confirms that the position is correct and the puncture is successful; After waiting for a preset time, the voice prompt system will give a voice prompt of "pull out the needle core and fix the puncture needle", and the needle core will be pulled out and the puncture needle assembly will be fixed; After waiting for the preset time, the voice prompt system will give the voice prompt of "flushing with normal saline" and flush the tube with normal saline; After waiting for the preset time, the voice prompt system will give a voice prompt of "connect the puncture needle assembly to the infusion set", and then connect the puncture needle assembly to the infusion set.

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