Bone marrow puncture extraction device for department of hematology

Abstract

The invention relates to the field of medical technical equipment, in particular to a bone marrow puncture extraction device for the hematology department, and aims to solve the problems that in the prior art, injection uniformity is not high, and child friendliness is not high. The bone marrow puncture extraction device comprises a shell, and the shell comprises a hard shell body and a soft shell body which are connected with each other. An air bag anesthesia mechanism and a puncture extraction mechanism are arranged on the hard shell in a sliding mode, a force storage control mechanism is arranged on the soft shell in a sliding mode, and the force storage control mechanism is in threaded connection with the hard shell. The air bag anesthesia mechanism is provided with an air bag structure containing anesthesia steam fog and can inject the steam fog into the body of a patient. Efficient puncture and anesthesia in the same equipment are achieved, and the structural design is more compact; and all the components are arranged in the hard shell, so that a patient is prevented from directly looking at the needle, the unease and fear of the patient are reduced, and the device is more suitable for teenagers and children. The bone marrow puncture can be automatically completed, the operation difficulty of doctors is reduced, and the manual puncture risk is reduced. The dispersion injection assembly distributes anesthesia steam mist through subdivision injection points, and the anesthesia efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the field of medical technical equipment, and particularly to a bone marrow puncture and extraction device for hematology department. Background Art

[0002] Bone marrow puncture, as a common medical procedure, is mainly used to collect bone marrow samples of patients for related diagnoses, such as the detection of blood diseases like leukemia and anemia. In the traditional bone marrow puncture process, doctors usually rely on rich experience to control the depth and strength of the puncture to ensure the accuracy and safety of sampling. However, the bone marrow puncture operation is somewhat challenging, especially when operating on some patients with relatively weak psychological endurance (such as children, the elderly, etc.), the pain and fear of the patients are often more obvious.

[0003] In the traditional puncture process, due to the inability to effectively control the anesthetic effect during the operation, patients often feel severe pain or discomfort, resulting in the occurrence of postoperative adverse reactions. At the same time, repeated operations and misoperations during the puncture process may also increase the risk of infection, and the technical requirements for the operating doctor are relatively high, leading to the failure of the operation or the occurrence of complications.

[0004] To solve the above problems, the medical community has been continuously exploring more efficient, safe and comfortable bone marrow puncture techniques. The introduction of balloon anesthesia and precise puncture techniques provides new solutions for improving traditional puncture operations. Through the balloon anesthesia technique, anesthetic drugs can be injected more evenly and slowly, reducing the discomfort of patients. The precise puncture and extraction technique can effectively avoid improper puncture depth and reduce the risk of medical accidents and puncture failures.

[0005] The invention patent with the publication number CN112472150A discloses a bone marrow puncture and extraction device for leukemia patients in the hematology department, which realizes the effect of anesthesia and bone marrow extraction with only one puncture of the patient. However, it still has the following problems: 1. The overall structure is complex and troublesome, with a lot of components used, which will increase the cost and the difficulty of maintenance; 2. The dispersion and efficiency of anesthetic injection are still not high; 3. The structure is loose, and the bottom puncture surface is not easy to align with the puncture site, and it may cause psychological discomfort to the patient. Summary of the Invention

[0006] The present invention aims to provide a bone marrow puncture and extraction device for hematology department to solve the above problems.

[0007] To achieve the above object, the technical solutions adopted by the present invention are as follows: A bone marrow puncture and extraction device for hematology comprises a shell, wherein the shell comprises a hard shell and a soft shell connected to each other, an airbag anesthesia mechanism and a puncture and extraction mechanism are arranged in the hard shell, a power storage control mechanism is sleeved on the soft shell, and the power storage control mechanism is threadedly connected to the hard shell; the front end of the power storage control mechanism is connected to the airbag anesthesia mechanism, and the rear end of the airbag anesthesia mechanism is connected to the puncture and extraction mechanism; the airbag anesthesia mechanism is used for performing multi-point dispersed injection anesthesia on patients.

[0008] Furthermore, a ring platform is provided at the rear end of the hard shell, an external threaded tube and a soft shell are connected to the ring platform, the external threaded tube is located inside the soft shell, and the puncture and extraction mechanism is slidably sleeved inside the external threaded tube; a limiting tube is provided at the front end inside the hard shell, and the airbag anesthesia mechanism is provided between the hard shell and the limiting tube.

[0009] Furthermore, the airbag anesthesia mechanism includes a dispersed injection component and an airbag, the airbag is located between the hard shell and the limiting tube, and the front end of the airbag is connected to a plurality of anesthesia needles, and the plurality of anesthesia needles are all connected to the dispersed injection component.

[0010] Furthermore, the dispersed injection assembly includes a functional hose, which is connected to the front end of the hard shell, and a positioning ring is slidably provided on the inner side of the functional hose, and the positioning ring is connected to a plurality of anesthesia needles.

[0011] Furthermore, a pressing plate is connected inside the functional hose via a plurality of connecting ropes.

[0012] Furthermore, the puncture and extraction mechanism comprises a puncture needle tube, the puncture needle tube is sleeved in the external threaded tube, and a piston is arranged in the puncture needle tube.

[0013] Furthermore, the piston is connected to a threaded column, the threaded column is threadedly connected to the puncture needle tube, and the end of the threaded column is connected to a handle.

[0014] Furthermore, a plurality of connecting platforms are arranged on the puncture needle tube ring, each of which is connected with an elastic rope, and the elastic rope is connected to the airbag; a limiting platform is arranged inside the external threaded tube, and a releasing groove cooperating with the connecting platform is arranged on the limiting platform.

[0015] Furthermore, the power storage control mechanism includes a threaded cap, which is sleeved on the soft shell and threadedly connected to the external threaded tube; a plurality of push rods are rotatably arranged inside the threaded cap, and the plurality of push rods are connected to a push ring, which penetrates the soft shell and abuts against the airbag.

[0016] Furthermore, the present invention also provides a method for using the aforementioned bone marrow puncture and extraction device for hematology, comprising the following steps: S1: Adjust the position of the housing and align the dispersed injection assembly with the puncture site; S2: Use the power storage control mechanism to control the airbag anesthesia mechanism to start the anesthesia vapor injection, and at the same time, the puncture extraction mechanism starts to store power; S3: The dispersion injection mechanism disperses and injects anesthetic mist while the puncture extraction mechanism is fully charged; S4: Activate the puncture extraction mechanism to perform bone marrow puncture and extract samples.

[0017] The present invention has the following beneficial effects: 1. The airbag anesthesia mechanism of the present invention squeezes the airbag through the energy storage control mechanism, so that the anesthetic mist in the airbag slowly and evenly anesthetizes the patient through the anesthetic needle, effectively reducing the pain and discomfort of the patient, avoiding the common discomfort in the traditional anesthesia process. At the same time, by hiding the needle in the device, it reduces the patient's visual fear and anxiety, especially suitable for teenagers and children with relatively fragile minds.

[0018] 2. The energy storage control mechanism rotates the threaded cap on the external threaded tube, squeezes the soft shell and makes the push rod axially displace. The push rod is used to push the airbag to inject anesthetic mist, and the airbag drives the elastic rope to stretch and store energy, which can control the coordinated work of the airbag anesthesia mechanism and the puncture extraction mechanism, ensure the continuity of the anesthesia and puncture processes, and reduce the surgical risk. The puncture depth is accurately controlled by the limit tube to avoid over-puncturing and ensure the safety and accuracy of the surgery.

[0019] 3. The overall equipment structure of the puncture extraction device in the present invention is compact and reasonable, with high space utilization rate. The airbag anesthesia mechanism, the puncture extraction mechanism and the energy storage control mechanism are integrated and optimized to achieve the efficient coordination of multiple functions.

[0020] 4. In the present invention, when the puncture extraction mechanism squeezes the airbag, it drives the elastic rope to stretch and store energy. After rotating the puncture needle tube, the connecting platform cooperates with the release groove, and the puncture needle tube is released and punctured under the action of the elastic rope. Finally, the puncture depth is controlled by the limit tube blocking the connecting platform to complete the puncture process. This automatic energy storage and simple release function reduces the repetitive work and technical difficulty of doctors in operation, and at the same time reduces the risk of mistakes in manual puncture, improving the efficiency and safety of the overall operation.

[0021] 5. The dispersion injection component has the function of multi-point anesthesia and can adjust the depth of the anesthetic needle. When the functional hose is aligned with the anesthetic site and pressed down, the pressing effect of the pressing disc can also prevent the skin from being squeezed and bulged, avoiding single-point injection and making the anesthesia more uniform and comfortable. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The specification drawings forming a part of this application are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings: Figure 1 is a schematic structural diagram of the bone marrow puncture and extraction device for hematology department of the present invention; Figure 2 Cross-sectional view of the bone marrow puncture and extraction device for hematology department of the present invention; Figure 3 Three-dimensional cross-sectional view of the bone marrow puncture and extraction device for hematology department of the present invention; Figure 4 Structural schematic diagram of the housing of the present invention; Figure 5 Cross-sectional view of the housing of the present invention; Figure 6 Cross-sectional view of the hard housing of the present invention; Figure 7 Cross-sectional view of the housing and airbag anesthesia mechanism of the present invention; Figure 8 Structural schematic diagram of the airbag anesthesia mechanism of the present invention; Figure 9 Bottom view of the dispersion injection assembly of the present invention; Figure 10 Structural schematic diagram of the functional hose of the present invention; Figure 11 Structural schematic diagram of the dispersion injection assembly of the present invention after removing the functional hose; Figure 12 Cross-sectional view of the housing and puncture extraction mechanism of the present invention; Figure 13 Structural schematic diagram of the puncture extraction mechanism and airbag of the present invention; Figure 14 Cross-sectional view of the puncture extraction mechanism of the present invention; Figure 15 Structural schematic diagram of the energy storage control mechanism and airbag of the present invention; Figure 16 Structural schematic diagram of the threaded cap of the present invention; Wherein: 1. Housing; 11. Hard housing; 111. Ring platform; 112. External threaded tube; 1121. Limit platform; 1122. Release groove; 113. Limit tube; 114. Observation window; 12. Soft housing; 2. Airbag anesthesia mechanism; 21. Dispersion injection assembly; 211. Functional hose; 2111. Adjusting slot; 212. Positioning ring; 213. Adjusting ring; 214. Adjusting bolt; 215. Connecting rope; 216. Pressing plate; 22. Airbag; 221. Communication hole; 23. Anesthesia needle; 3. Puncture extraction mechanism; 31. Puncture needle tube; 311. Piston; 312. Threaded column; 313. Handle; 314. Connecting platform; 315. Elastic rope; 4. Energy storage control mechanism; 41. Threaded cap; 42. Pushing rod; 43. Pushing ring; 5. Lid. Detailed implementation method

[0023] To enable those of ordinary skill in the art to better understand the technical solution of the present invention, the technical solution of the present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "front", "rear", "left", "right", "front end", "rear end", "inner side", "outer side", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.

[0025] In the description of the present application, it should also be noted that unless otherwise clearly specified and defined, the terms "set", "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0026] Embodiment 1: This embodiment provides a bone marrow puncture extraction device for hematology department, as Figures 1 to 16 shown, which includes a housing 1. The housing includes a hard housing 11 and a soft housing 12 that are connected to each other. An airbag anesthesia mechanism 2 and a puncture extraction mechanism 3 are provided in the hard housing 11. A power storage control mechanism 4 is sleeved on the soft housing 12, and the power storage control mechanism 4 is threadedly connected to the hard housing 11; the front end of the power storage control mechanism 4 is connected to the airbag anesthesia mechanism 2, and the rear end of the airbag anesthesia mechanism 2 is connected to the puncture extraction mechanism 3; the airbag anesthesia mechanism 2 is used for multi-point dispersed injection anesthesia of patients. Both the airbag anesthesia mechanism 2 and the puncture extraction mechanism 3 slide in the hard housing 11, realizing efficient bone marrow puncture and anesthesia in the same device, reducing the complexity of the operation and the repeatability of the puncture. At the same time, the structure is more compact; and both are arranged inside the hard housing 11, avoiding the patient's direct view of the needle, reducing the patient's uneasiness and fear of the operation, especially suitable for teenagers and children with relatively fragile minds. The power storage control mechanism 4 is used to precisely control the injection of the anesthesia mist of the airbag anesthesia mechanism 2, and at the same time can store power for the puncture extraction mechanism 3. After the power storage is released, the puncture extraction mechanism 3 automatically completes the bone marrow puncture, reducing the operation difficulty of the doctor and also reducing the risk of manual puncture errors; and it can ensure the continuity of anesthesia and puncture, thereby improving the safety and efficiency of the operation. The airbag anesthesia mechanism 2 includes a dispersed injection assembly 21. By subdividing the injection point distribution of the anesthesia mist, the puncture site can be anesthetized more evenly, improving the anesthesia efficiency.

[0027] Among them, the hard shell 11 is made of a material that is not easily deformed, and specifically can be made of medical metal, hard plastic or other materials; the soft shell 12 is made of a relatively soft elastic material, and specifically can be made of medical rubber, silica gel or other materials.

[0028] Furthermore, a ring platform 111 is provided at the rear end of the hard shell 11. An external threaded tube 112 and a soft shell 12 are connected to the ring platform 111. The external threaded tube 112 is located inside the soft shell 12. The puncture and extraction mechanism 3 is slidably sleeved inside the external threaded tube 112. A limiting tube 113 is provided at the front end inside the hard shell 11. The airbag anesthesia mechanism 2 is provided between the hard shell 11 and the limiting tube 113. The other end of the hard shell 11 is connected to the end of the limiting tube 113, and the limiting tube 113 is located inside the hard shell 11. The airbag anesthesia mechanism 2 is slidably sleeved outside the limiting tube 113. A force storage control mechanism 4 is slidably sleeved on the soft shell 12, and the force storage control mechanism 4 is threadedly connected to the external threaded tube 112. Specifically, the structures and connection relationships of the hard shell 11 and the soft shell 12 are described. The overall structure design is very compact and reasonable, with high space utilization. At the same time, the three functional modules of the airbag anesthesia mechanism 2, the puncture and extraction mechanism 3, and the force storage control mechanism 4 are integrated, and the structural optimization degree is extremely high on the premise of meeting the functions.

[0029] Furthermore, the airbag anesthesia mechanism 2 includes a dispersion injection assembly 21 and an airbag 22. The airbag 22 is located between the hard shell 11 and the limiting tube 113. A plurality of anesthesia needles 23 are communicated and provided at the front end of the airbag 22. The plurality of anesthesia needles 23 are all connected to the dispersion injection assembly 21. The airbag 22 is filled with anesthetic mist. The internal anesthetic mist of the airbag 22 reaches the dispersion injection assembly 21 through the communication hole 221, and then the anesthetic mist is dispersed and injected into the patient's body through the dispersion injection assembly 21. The injection of the anesthetic mist is realized by pressing the airbag 22, making the injection process more gentle. Specifically, an observation window 114 is provided at the corresponding position of the hard shell 11 to observe the pressure situation of the airbag 22, which is convenient for accurately controlling the injection amount of the anesthetic mist. In addition, the sliding installation of the anesthesia needles 23 provides a basis for the position adjustment of the anesthesia needles 23.

[0030] Furthermore, the dispersed injection component 21 includes a functional hose 211, which is connected to the end of the hard shell 11. A positioning ring 212 is slidably provided on the inner side of the functional hose 211. The positioning ring 212 is connected to multiple anesthetic needles 23. The anesthetic needles 23 are evenly provided with multiple small holes for dispersed injection of anesthetic vapor; a plurality of adjustment strip holes 2111 are provided on the functional hose 211, and an adjustment ring 213 is slidably provided on the outer side of the functional hose 211. The adjustment ring 213 is connected to multiple adjustment bolts 214 corresponding to the adjustment strip holes 2111. The adjustment bolts 214 pass through the adjustment strip holes 2111 and are connected to the positioning ring 212. The functional hose 211 is used to contact the puncture site of the patient; the positioning ring 212 is parallel to the above-mentioned multiple connecting holes 221, and the positioning ring 212 is fixedly connected to multiple anesthesia needles 23; when the adjustment bolt 214 is loose, the adjustment ring 213 on the functional hose 211 can be manually adjusted to adjust the extension length of the anesthesia needle 23 to suit different patients; when the adjustment bolt 214 is locked, the adjustment ring 213 is clamped with the positioning ring 212, and the adjustment ring 213 cannot move, and needle anesthesia can be performed at this time. It should be noted that before anesthesia is performed, the extension length of the anesthesia needle 23 needs to be adjusted in advance.

[0031] Furthermore, the puncture extraction mechanism 3 includes a puncture needle tube 31, which is slidably arranged in the external threaded tube 112, and a piston 311 is arranged in the puncture needle tube 31, and the piston 311 is connected to a threaded column 312, and the threaded column 312 is threadedly connected in the puncture needle tube 31, and a handle 313 is connected to the end of the threaded column 312. The puncture needle tube 31 is slidably arranged in the external threaded tube 112 to ensure the accuracy and stability of the puncture operation; after the puncture is completed, the handle 313 can be rotated to rotate the threaded column 312, thereby moving the position of the piston 311, and the negative pressure generated in the piston 311 and the puncture needle tube 31 is used to realize the extraction of the bone marrow sample. Specifically, an extraction chamber is arranged in the puncture needle tube 31, and the piston 311 is located in the extraction chamber. The extracted sample is temporarily stored in the extraction chamber. After completion, the handle 313 can be reversed to push the piston 311 to remove it.

[0032] Furthermore, a plurality of connecting platforms 314 are provided on the puncture needle tube 31, and elastic ropes 315 are connected to the connecting platforms 314, and the elastic ropes 315 are connected to the airbag 22; a limiting platform 1121 is provided in the external threaded tube 112, and a circular hole for the puncture needle tube 31 to pass through is reserved in the middle of the limiting platform 1121, and a release groove 1122 cooperating with the connecting platform 314 is provided on the limiting platform 1121. The limiting platform 1121 is used to resist and limit the connecting platform 314. When the puncture needle tube 31 is rotated, the relative positions of the connecting platform 314 and the limiting platform 1121 change until the connecting platform 314 reaches the slot position of the release groove 1122, and the connecting platform 314 can pass through the release groove 1122 under the action of the elastic rope 315, so that the puncture needle tube 31 can move and complete the puncture.

[0033] Furthermore, the power storage control mechanism 4 includes a threaded cap 41, which is sleeved on the soft shell 12 and is threadedly connected to the external threaded tube 112; a plurality of push rods 42 are rotatably arranged inside the threaded cap 41, and the plurality of push rods 42 are connected to a push ring 43, and the push ring 43 penetrates the soft shell 12 and then abuts against the airbag 22. Specifically, the push rod 42 slides through the ring platform 111 of the hard shell 11; when the threaded cap 41 is rotated, due to the threaded connection between the threaded cap 41 and the external threaded tube 112, the threaded cap 41 moves along the external threaded tube 112 toward the hard shell 11, and at this time, due to the sliding sleeve relationship between the threaded cap 41 and the soft shell 12, the soft shell 12 is compressed by the threaded cap 41 and its axial length is reduced, and specifically, a plurality of strip holes are provided on the soft shell 12 to facilitate the deformation and expansion of the soft shell 12 and reduce its axial length; a plurality of The push rod 42 is displaced under the drive of the threaded cap 41, and squeezes the airbag 22 through the push ring 43 to achieve control of the airbag anesthesia mechanism 2; at the same time, the elastic rope 315 of the puncture and extraction mechanism 3 is stretched and stored due to the compressed movement of the airbag 22, thereby achieving the storage of force of the entire puncture and extraction mechanism 3; when the force is stored to an appropriate degree, the puncture needle tube 31 is manually rotated so that the above-mentioned connecting platform 314 corresponds to the release groove 1122, and the puncture needle tube 31 contacts the limit and completes the puncture under the traction of the elastic rope 315.

[0034] It should be noted that, during specific use, the limiting tube 113 in the hard shell 11 realizes the control of the puncture depth, and the end of the limiting tube 113 can limit the connecting platform 314 of the puncture needle tube 31 to avoid excessive puncture; therefore, a buffer layer should be provided at the end of the limiting tube 113 to avoid rebound and mechanical damage to the puncture needle tube 31; and the length of the limiting tube 113 needs to be strictly controlled and set through conventional tests. If necessary, in other embodiments, an existing length adjustment structure can be provided in the middle of the hard shell 11 to more conveniently control the puncture depth.

[0035] Embodiment 2: On the basis of the first embodiment, in the second embodiment, further, a pressing disc 216 is connected inside the functional hose 211 through a plurality of connecting ropes 215. There is a hole in the middle of the pressing disc 216 for the puncture needle tube 31 to pass through. After the functional hose 211 is aligned with and presses the patient's puncture site, since the end of the functional hose 211 expands outward, the connecting rope 215 is pulled to stabilize the pressing disc 216. Continuing to squeeze the functional hose 211, the pressing disc 216 abuts against the corresponding part, preventing the skin of this part from bulging under the pressure of the edge of the functional hose 211 and affecting the dispersion effect of the anesthesia; at the same time, the functional hose 211 cannot be further squeezed under the limit of the pressing disc 216, which can standardize the pressing degree of the entire device at the puncture site; it should be ensured that when the maximum pressing depth is reached, the anesthesia needle 23 should penetrate the skin of the part to be anesthetized. The pressing disc 216 can not only ensure a more uniform anesthesia effect, but also improve the operation convenience and control accuracy of the device.

[0036] Working principle: The bone marrow puncture and extraction device for hematology department of the present invention integrates functions of balloon anesthesia, precise puncture and automatic sample extraction, providing an efficient, safe and comfortable bone marrow puncture solution. Its working principle is based on the following design and function integration: 1. Working principle of the balloon anesthesia mechanism 2: The balloon anesthesia mechanism 2 includes a balloon 22 filled with anesthetic mist. The anesthetic mist in the balloon 22 is delivered to the anesthesia needle 23 through a plurality of communication holes 221 during the operation, and further injected into the patient's body through the dispersion injection assembly 21. The pressing action on the balloon 22 controls the injection of the anesthetic mist, ensuring a slow and uniform anesthesia process and avoiding discomfort caused by excessive injection. The pressing situation of the balloon 22 can be observed through the observation window 114 on the hard shell 11, so as to accurately control the anesthetic dose and injection speed and ensure the anesthesia effect.

[0037] 2. Working principle of the puncture and extraction mechanism 3: The puncture needle tube 31 is slidably installed in the external thread tube 112, and the puncture operation controls the puncture depth by adjusting the relative position of the threaded column 312 and the puncture needle tube 31. A piston 311 is provided inside the puncture needle tube 31, and the negative pressure of the piston 311 enables the bone marrow sample to be effectively extracted. A plurality of connecting platforms 314 are provided on the puncture needle tube 31 in a ring shape, and the connecting platforms 314 are connected to the balloon 22 through elastic ropes 315. The compression of the balloon 22 enables the puncture and extraction mechanism 3 to store energy, and the puncture needle tube 31 can stably complete the puncture operation. When the energy storage reaches an appropriate degree, the puncture needle tube 31 completes automatic puncture through the rotation release groove 1122.

[0038] 3. Working principle of the energy storage control mechanism 4: The force storage control mechanism 4 is threadedly connected to the external threaded tube 112 through the threaded cap 41 to achieve precise control of the airbag anesthesia mechanism 2 and the puncture extraction mechanism 3. The rotation of the threaded cap 41 reduces the axial length of the soft shell 12, thereby pushing the multiple push rods 42, squeezing the airbag 22 through the push ring 43, and controlling the injection process of the anesthetic vapor. The elastic rope 315 of the force storage control mechanism 4 cooperates with the compression of the airbag 22 to store enough energy, so that the puncture extraction mechanism 3 can automatically complete the puncture operation after the force storage is released, reducing the difficulty of the doctor's operation and also reducing the risk of errors in manual puncture.

[0039] 4. Accurately control the puncture depth: The limiting tube 113 in the hard shell 11 plays a role in controlling the puncture depth. The end of the limiting tube 113 can limit the puncture depth of the puncture needle tube 31 to avoid excessive puncture. After the puncture is completed, the limiting tube 113 reduces the risk of rebound of the puncture needle tube 31 through the buffer layer to ensure accurate control of the puncture depth. In other embodiments, a length-adjustable structure can be set in the middle of the hard shell 11 to more conveniently adjust the puncture depth in different patients.

[0040] 5. Working principle of the dispersed injection assembly 21: The dispersed injection assembly 21 includes a functional hose 211 and an anesthesia needle 23. An adjustment ring 213 and an adjustment bolt 214 are provided in the functional hose 211. By loosening the adjustment bolt 214, the extension length of the anesthesia needle 23 can be adjusted to adapt to the body shape and puncture site of different patients. The cooperation between the adjustment ring 213 and the positioning ring 212 ensures the accurate positioning of the anesthesia needle 23, thereby improving the accuracy of the anesthesia dose and distribution. A plurality of small holes are evenly arranged on the anesthesia needle 23 to disperse the anesthesia vapor and ensure the uniformity of the anesthesia effect.

[0041] 6. Functions of the pressing plate 216: The pressing plate 216 is connected to the functional hose 211 through a plurality of connecting ropes 215. The pressing plate 216 can stably press against the puncture site of the patient to avoid uneven anesthesia distribution due to uneven pressure during anesthesia. The design of the pressing plate 216 not only improves the uniformity of anesthetic distribution, but also improves the operating accuracy of the device, ensuring that the anesthesia needle 23 punctures the skin smoothly.

[0042] Specific application cases: In hematology, bone marrow puncture and extraction is one of the common diagnostic and treatment methods, which is used to obtain bone marrow samples from patients for relevant examinations. However, the traditional puncture process is often accompanied by strong pain and discomfort in patients, especially for patients with weak psychological tolerance (such as children, adolescents, the elderly, etc.). At the same time, there are certain technical difficulties in the operation. Doctors need to accurately control the puncture depth and strength to reduce surgical risks. At this time, the bone marrow puncture and extraction device for hematology of the present invention can be applied. The needle is hidden in the shell 1. At the same time, the design is compact and reasonable, and it has the function of auxiliary anesthesia. The specific application method steps are as follows: 1. Preparation: Assemble the bone marrow puncture extraction device and check the connection of each component to ensure the stability and complete function of the device. Pay special attention to adjusting the length of the limit tube 113 to strictly control the puncture depth; adjust the adjustment ring 213 according to the actual situation of the patient's puncture site to ensure the adaptability of the extended length of the anesthesia needle 23.

[0043] 2. Positioning and anesthesia: By dispersing the injection component 21, align the functional hose 211 with the patient's puncture site, squeeze and insert the anesthetic needle 23 into the corresponding site until the pressing plate 216 presses against the patient's skin; then start the power storage control mechanism 4, rotate the threaded cap 41, and accurately control the airbag anesthesia mechanism 2 to start injecting anesthetic vapor to ensure uniform and comfortable anesthesia effect.

[0044] 3. Puncture extraction: After anesthesia is completed, the puncture needle tube 31 is rotated to adjust the position of the connecting platform 314, and the puncture needle tube 31 is released through the release groove 1122, and the end of the limiting tube 113 is pressed against the connecting platform 314 to control the puncture depth.

[0045] After the puncture is completed, the puncture needle tube 31 is stabilized, and the handle 313 is turned to extract the bone marrow sample through the negative pressure generated by the piston 311, and the sample extraction amount is controlled by the number of turns of the threaded column 312.

[0046] 4. End the operation: Clean and maintain equipment ready for next use.

[0047] The present invention integrates the functions of airbag anesthesia, precise puncture and sample extraction. The hidden needle design effectively reduces the patient's discomfort, while the optimized design of the housing 1 improves the safety and success rate of puncture, and is suitable for various clinical environments, especially for patients with greater psychological pressure.

[0048] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and what is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. A bone marrow puncture extraction device for hematology, comprising a housing (1), characterized in that: The shell (1) comprises a hard shell (11) and a soft shell (12) which are connected to each other, an airbag anesthesia mechanism (2) and a puncture extraction mechanism (3) are arranged in the hard shell (11), a power storage control mechanism (4) is sleeved on the soft shell (12), and the power storage control mechanism (4) is threadedly connected to the hard shell (11); The front end of the power storage control mechanism (4) is connected to the air bag anesthesia mechanism (2), and the rear end of the air bag anesthesia mechanism (2) is connected to the puncture extraction mechanism (3); The airbag anesthesia mechanism (2) is used to perform multi-point dispersed injection anesthesia on a patient.

2. The bone marrow puncture and extraction device for hematology according to claim 1, characterized in that: The rear end of the hard shell (11) is provided with a ring platform (111), the ring platform (111) is connected to an externally threaded tube (112) and the soft shell (12), the externally threaded tube (112) is located inside the soft shell (12), and the puncture extraction mechanism (3) is slidably sleeved inside the externally threaded tube (112); A limiting tube (113) is provided at the front end of the inner side of the hard shell (11), and the airbag anesthesia mechanism (2) is provided between the hard shell (11) and the limiting tube (113).

3. The bone marrow puncture and extraction device for hematology according to claim 2, characterized in that: The airbag anesthesia mechanism (2) comprises a dispersion injection component (21) and an airbag (22); the airbag (22) is located between the hard shell (11) and the limiting tube (113); a front end of the airbag (22) is connected to a plurality of anesthesia needles (23); the plurality of anesthesia needles (23) are all connected to the dispersion injection component (21).

4. The bone marrow puncture and extraction device for hematology according to claim 3, characterized in that: The dispersed injection assembly (21) comprises a functional hose (211), wherein the functional hose (211) is connected to the front end of the hard shell (11), and a positioning ring (212) is slidably provided inside the functional hose (211), and the positioning ring (212) is connected to the plurality of anesthesia needles (23).

5. The bone marrow puncture and extraction device for hematology according to claim 4, characterized in that: The functional hose (211) is also connected to a pressing plate (216) via a plurality of connecting ropes (215).

6. The bone marrow puncture and extraction device for hematology according to claim 3, characterized in that: The puncture and extraction mechanism (3) comprises a puncture needle tube (31), the puncture needle tube (31) is sleeved in the externally threaded tube (112), and a piston (311) is provided in the puncture needle tube (31).

7. The bone marrow puncture and extraction device for hematology according to claim 6, characterized in that: The piston (311) is connected to a threaded column (312), the threaded column (312) is threadedly connected inside the puncture needle tube (31), and the end of the threaded column (312) is connected to a handle (313).

8. The bone marrow puncture and extraction device for hematology according to claim 6, characterized in that: A plurality of connecting platforms (314) are provided on the puncture needle tube (31), each of the connecting platforms (314) is connected to an elastic rope (315), and the elastic rope (315) is connected to the air bag (22); A limiting platform (1121) is provided inside the externally threaded tube (112), and a releasing groove (1122) cooperating with the connecting platform (314) is provided on the limiting platform (1121).

9. The bone marrow puncture and extraction device for hematology according to claim 3, characterized in that: The power storage control mechanism (4) comprises a threaded cap (41), the threaded cap (41) being sleeved on the soft shell (12), and the threaded cap (41) being threadedly connected to the external threaded tube (112); A plurality of push rods (42) are rotatably disposed inside the threaded cap (41), and the plurality of push rods (42) are connected to a push ring (43). The push ring (43) penetrates the soft shell (12) and abuts against the air bag (22).

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