Endoscopic living body sampling device for breathing and critical diseases

Abstract

The invention discloses an endoscopic living body sampling device for respiration and critical diseases, and belongs to the technical field of medical instruments, the endoscopic living body sampling device for respiration and critical diseases comprises a bent pipe section and a straight pipe section, and the straight pipe section is located at one end of the bent pipe section. An inner groove body, an outer through groove and a cylindrical sliding groove are formed in the straight pipe section, a main control rod is slidably connected into the cylindrical sliding groove, a first-class control assembly is arranged in the inner groove body and controls the main control rod to slide up and down, biopsy three-jaw forceps are arranged at the bottom end of the main control rod, and a second-class control assembly is arranged in the cylindrical sliding groove and controls the main control rod to slide up and down. The second-class control assembly controls the biopsy three-jaw forceps to be opened or closed. According to the device, the sampling precision can be ensured, a etiology or pathology definite diagnosis basis is provided, the peripheral lesion diagnosis condition can be clearly observed, the device is simple to operate, compression can be performed during sampling, hemostasis is assisted by medicines, the bleeding risk is reduced, the sampling position precision is ensured, and the sample quality is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and more particularly to an endoscopic living body sampling device for respiratory and critical illnesses. Background Art

[0002] Respiratory diseases are among the most common diseases with the highest morbidity and mortality rates worldwide, including chronic obstructive pulmonary disease (COPD), lung cancer, tuberculosis, interstitial lung disease, and many other conditions. According to statistics from the World Health Organization (WHO), respiratory diseases cause approximately 4 million deaths worldwide each year, with lung cancer being the leading cause of cancer-related deaths. Traditional diagnostic methods for respiratory diseases primarily include imaging studies (such as X-rays and CT scans), sputum examinations, bronchoalveolar lavage (BAL), and transbronchial lung biopsy (TBLB).

[0003] Currently, traditional diagnostic methods for respiratory diseases each have obvious limitations: imaging examinations cannot provide a basis for etiological or pathological confirmation; sputum examinations are easily affected by upper respiratory tract contamination and have low specificity; although bronchoalveolar lavage can obtain lower respiratory tract samples, its diagnostic rate for peripheral lesions is limited; and traditional bronchoscopic lung biopsy has problems such as complex operation, high risk of bleeding, and unstable sample quality.

[0004] Therefore, in view of this, the existing structure is studied and improved to provide an endoscopic biopsy device for respiratory and critical illnesses, in order to achieve a more practical purpose. Summary of the Invention

[0005] 1. Technical problems to be solved

[0006] In response to the problems existing in the prior art, the purpose of the present invention is to provide an endoscopic biopsy device for respiratory and critical illnesses, which can ensure the accuracy of sampling, provide a basis for etiological or pathological diagnosis, and clearly observe the diagnosis of peripheral lesions. The device is simple to operate, can perform compression during sampling, and can assist in hemostasis with drugs to reduce the risk of bleeding, ensure the accuracy of the sampling position, and ensure the quality of the sample.

[0007] 2. Technical solution

[0008] To solve the above problems, the present invention adopts the following technical solutions.

[0009] An endoscopic living body sampling device for respiratory and critical illnesses comprises a curved pipe section and a straight pipe section, wherein the straight pipe section is located at one end of the curved pipe section.

[0010] The curved pipe section and the straight pipe section both adopt a three-layer composite structure. The interior of the straight pipe section is provided with an inner trough body, an outer through trough and a cylindrical slide. The inner trough body is close to the curved pipe section, and the outer through trough is far away from the curved pipe section. The inner trough body and the outer through trough are connected through the cylindrical slide. The interior of the cylindrical slide is slidably connected with a main control rod. A type of control component is provided in the inner trough body, and the type of control component controls the main control rod to slide up and down. A three-claw clamp for living body sampling is provided at the bottom end of the main control rod. A second type of control component is provided inside the cylindrical slide, and the second type of control component controls the opening or closing of the three-claw clamp for living body sampling.

[0011] Furthermore, the outer diameters of the curved pipe section and the straight pipe section are the same, and the curved pipe section includes a plurality of universal joints;

[0012] The length of the straight pipe section is much shorter than that of the curved pipe section.

[0013] Furthermore, the three-layer composite structure is an outer PTFE coating, a middle nickel-titanium alloy braided mesh, and an inner silicone lining. The PTFE coating, the nickel-titanium alloy braided mesh, and the silicone lining are melted to form an integrated structure, and the thickness of the silicone lining is much greater than that of the PTFE coating and the nickel-titanium alloy braided mesh.

[0014] Furthermore, the type of control assembly includes a fixing sleeve, which is fixed to the side of the main control rod;

[0015] A spring rod is hinged between one side of the fixing sleeve and the inner bottom of the inner groove body, and the spring rod is always kept in a compressed state.

[0016] Furthermore, a fiber rope is hinged on the other side of the fixed sleeve, a first liquid path is opened on the straight pipe section, a first piston is slidably connected in the first liquid path, and the bottom end of the first piston is fixed to one end of the fiber rope.

[0017] Furthermore, the first fluid path includes two continuous cavities, an upper cavity and a lower cavity, the inner diameter of the lower cavity is larger than the inner diameter of the upper cavity, and the first piston slides in the lower cavity.

[0018] Furthermore, the second type of control component includes a universal ball, a ball sleeve is provided on the outside of the universal ball, the ball sleeve slides along the outside of the universal ball, and the living body sampling three-claw clamp is fixed to the bottom end of the ball sleeve.

[0019] Furthermore, a continuous passage is provided inside the universal ball and the main control rod, and a T-shaped push rod with a piston head is pushed in the passage;

[0020] A hose is connected to the side of the internal passage of the main control rod, and a second liquid path is opened on the side of the straight pipe section, and the second liquid path is communicated with the hose.

[0021] Furthermore, the three claws of the three-claw forceps for taking living things samples are in close contact with each other when closed;

[0022] A cutter is provided at the bottom end of one of the claw hooks.

[0023] Furthermore, the bottom end side surface of the straight pipe section is coated with a lubricating layer.

[0024] 3. Beneficial effects

[0025] Compared with the prior art, the advantages of the present invention are:

[0026] This solution uses curved and straight pipe sections to form the device's probe pipe, which is then inserted into the respiratory tract and, at the designated sampling location, completes the incision, separation, fixed sampling, and removal of the living organism. During this process, a lubricating layer can monitor the entire sampling process to ensure sampling accuracy, providing a basis for etiological or pathological diagnosis, and clearly observing the diagnosis of peripheral lesions.

[0027] During the living body sampling process, the device only needs to control the first liquid path and the second liquid path, which is simple to operate. Pressure can be applied during sampling, and drugs can be used to assist in hemostasis, reducing the risk of bleeding, ensuring the accuracy of the sampling position, and ensuring the quality of the sample. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 Schematic diagram of the structure of the combined curved pipe section and the straight pipe section in the present invention;

[0029] Figure 2 Schematic diagram of the structure inside the straight pipe section of the present invention;

[0030] Figure 3 For the present invention Figure 2 A schematic diagram of the structure of the enlarged part A (a type of control component);

[0031] Figure 4 For the present invention Figure 2 The schematic diagram of the structure of the enlarged part B (second type control component);

[0032] Figure 5 The structure of the three-claw forceps for taking living samples in the present invention is shown as follows: Figure 1 ;

[0033] Figure 6 The structure of the three-claw forceps for taking living samples in the present invention is shown as follows: Figure 2 .

[0034] Description of the numbers in the figure:

[0035] 1. Bend section;

[0036] 2. Straight pipe section; 201. Inner tank; 202. External through tank; 203. Cylindrical chute; 204. First fluid path; 2041. First piston; 205. Second fluid path; 206. Lubricating layer;

[0037] 3. Main control lever;

[0038] 4. Class I control assembly; 401. Fixed sleeve; 402. Spring rod; 403. Fiber rope;

[0039] 5. Three-claw forceps for biopsy; 501. Cutter;

[0040] 6. Class II control components; 601. Universal ball transfer; 6011. Passage; 6012. T-type push rod with piston head; 6013. Hose;

[0041] 602. Ball sleeve. DETAILED DESCRIPTION

[0042] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0043] Example 1:

[0044] See also Figure 1 - Figure 6 An endoscopic biopsy device for respiratory and critical illnesses includes a curved tube section 1 and a straight tube section 2, wherein the straight tube section 2 is located at one end of the curved tube section 1.

[0045] The straight tube section 2 will not bend when inserted, which can ensure stability during subsequent live sampling, while the curved tube section 1 will bend when inserted, which can adapt to the curvature of the respiratory tract.

[0046] Both the curved pipe section 1 and the straight pipe section 2 adopt a three-layer composite structure. The interior of the straight pipe section 2 is provided with an inner trough 201, an outer through groove 202 and a cylindrical slide 203. The inner trough 201 is close to the curved pipe section 1, and the outer through groove 202 is far away from the curved pipe section 1. The inner trough 201 and the outer through groove 202 are connected through the cylindrical slide 203. The interior of the cylindrical slide 203 is slidably connected with a main control rod 3. A type of control component 4 is provided in the inner trough 201. The type of control component 4 controls the main control rod 3 to slide up and down. The bottom end of the main control rod 3 is provided with a living sampling three-claw clamp 5. A type of control component 6 is provided inside the cylindrical slide 203. The type of control component 6 controls the living sampling three-claw clamp 5 to open or close.

[0047] Example 2:

[0048] Based on the above embodiment 1, further description is given.

[0049] See Figure 1 、 Figure 2 Specifically, the outer diameters of the curved pipe section 1 and the straight pipe section 2 are the same, and the curved pipe section 1 includes several universal joints;

[0050] During use, the straight tube section 2 is completely inserted into the respiratory tract, and the curved tube section 1 is partially inserted into the respiratory tract. Since the internal fluid paths of the curved tube section 1 and the straight tube section 2 are interconnected, the fluid path at the extracorporeal end of the straight tube section 2 can be controlled, thereby facilitating the control of the sampling part of the straight tube section 2 inside the body, ensuring smooth sampling and convenient sampling operation.

[0051] The length of the straight pipe section 2 is much shorter than that of the curved pipe section 1.

[0052] When the straight pipe section 2 moves in the respiratory tract, the turning of the respiratory tract is prevented from affecting the movement of the straight pipe section 2. At the same time, the length of the curved pipe section 1 can ensure that the straight pipe section 2 reaches the designated sampling position.

[0053] Specifically, the three-layer composite structure consists of an outer PTFE coating, a middle nickel-titanium alloy braided mesh, and an inner silicone lining. The PTFE coating, the nickel-titanium alloy braided mesh, and the silicone lining are melted to form an integrated structure, and the thickness of the silicone lining is much greater than that of the PTFE coating and the nickel-titanium alloy braided mesh.

[0054] The outer PTFE coating reduces airway friction and effectively prevents tracheal damage during tubing movement. The middle nickel-titanium alloy braided mesh improves bending resistance, preventing damage to the entire tubing within the human body. The inner silicone lining ensures the tubing's toughness and facilitates movement.

[0055] The three-layer composite structure can effectively isolate the space inside and outside the pipe, avoid material exchange inside and outside the pipe, and ultimately ensure that the end of the straight pipe section 2 can smoothly reach the designated position.

[0056] See Figure 2 、 Figure 3 ,Specifically, a type of control assembly 4 includes a fixing sleeve 401, which is fixed to the side of the main control rod 3;

[0057] When the fixing sleeve 401 moves, the main control rod 3 moves synchronously.

[0058] A spring rod 402 is hinged between one side of the fixing sleeve 401 and the inner bottom of the inner tank 201 , and the spring rod 402 is always kept in a compressed state.

[0059] By utilizing the elasticity of the spring rod 402, without applying any other external force, the fixing sleeve 401 is pushed to the highest point, and the living body sampling three-claw forceps 5 is retracted into the inside of the cylindrical slide groove 203. At this time, it is suitable to push the entire pipeline into the respiratory tract to avoid the living body sampling three-claw forceps 5 from causing damage to human tissue during the movement.

[0060] Specifically, a fiber rope 403 is hinged on the other side of the fixed sleeve 401 , a first liquid path 204 is opened on the straight pipe section 2 , a first piston 2041 is slidably connected in the first liquid path 204 , and the bottom end of the first piston 2041 is fixed to one end of the fiber rope 403 .

[0061] The curved pipe section 1 is provided with a liquid path matching the first liquid path 204 . By controlling the liquid in the first liquid path 204 , hydraulic pressure is formed, thereby controlling the position of the first piston 2041 and ultimately controlling the state of the fiber rope 403 .

[0062] Under the action of the liquid level, when the height of the first piston 2041 rises, the height of the fixed sleeve 401 decreases, and at the same time, the height of the main control rod 3 is driven to decrease, and the three-claw forceps 5 for biopsy are extended from the cylindrical slide groove 203, and the spring rod 402 is further compressed.

[0063] Under the action of the liquid level, when the height of the first piston 2041 decreases, the height of the fixed sleeve 401 increases, and at the same time, the main control rod 3 is driven to increase in height, and the living body sampling three-claw forceps 5 are retracted into the cylindrical slide groove 203. At the same time, the length of the spring rod 402 increases, but still remains in a compressed state. At this time, the living body sampling three-claw forceps 5 can be prevented from directly contacting human tissue, avoiding scratch accidents.

[0064] Specifically, the first fluid path 204 includes two continuous cavities, an upper cavity and a lower cavity. The inner diameter of the lower cavity is larger than that of the upper cavity, and the first piston 2041 slides in the lower cavity.

[0065] The cavity in the lower section can limit the range of movement of the first piston 2041 , thereby preventing the first piston 2041 from falling out of the first fluid path 204 .

[0066] See Figure 2 、 Figure 4 、 Figure 5 、 Figure 6 Specifically, the second type control component 6 includes a universal ball 601, a ball sleeve 602 is provided on the outside of the universal ball 601, the ball sleeve 602 slides along the outside of the universal ball 601, and the living body sampling three-claw forceps 5 is fixed at the bottom end of the ball sleeve 602.

[0067] The ball sleeve 602 can rotate within a certain range, thereby adjusting the direction of the three-claw forceps 5 for taking living body samples, thereby increasing the sampling range of the three-claw forceps 5 for taking living body samples.

[0068] Specifically, a continuous passage 6011 is provided inside the universal ball 601 and the main control rod 3, and a T-shaped push rod 6012 with a piston head is pushed in the passage 6011;

[0069] When the T-shaped push rod 6012 with a piston head descends, the three-clawed living body sampling forceps 5 are controlled to be unfolded, and when the T-shaped push rod 6012 with a piston head rises, the three-clawed living body sampling forceps 5 are controlled to be retracted.

[0070] A hose 6013 is connected to the side of the internal passage 6011 of the main control rod 3 , and a second liquid path 205 is opened on the side of the straight pipe section 2 , and the second liquid path 205 is connected to the hose 6013 .

[0071] The working principle of the second liquid circuit 205 is similar to that of the first liquid circuit 204 , ie, controlling the height of the T-shaped push rod 6012 with a piston head.

[0072] At the same time, the hose 6013 can adapt to the height change of the main control rod 3.

[0073] Specifically, the three claws of the three-claw forceps 5 for taking living organism samples are pressed against each other when they are closed.

[0074] In this way, the living organism for sampling can be easily fixed between the three claw hooks.

[0075] A cutter 501 is provided at the bottom end of one of the claw hooks.

[0076] The cutter 501 can be used to assist in cutting and sampling of a living body.

[0077] The sampling process is as follows: the three-clawed living body sampling forceps 5 is inserted into the outer groove 202 and contacts the tissue at the sampling site. The direction of the three-clawed living body sampling forceps 5 is adjusted by utilizing the characteristic of the ball sleeve 602 sliding along the outer side of the universal ball 601. Then the three-clawed living body sampling forceps 5 is opened, and the position of the three-clawed living body sampling forceps 5 is adjusted at the same time so that the sampled living body is between the three claws. The three claws are slowly closed, and the cutter 501 cuts part of the living body to separate the living tissue. Then the degree of closing is controlled until the cut living body is fixed under the three-clawed living body sampling forceps 5, and finally put into the inside of the outer groove 202 for easy removal from the body.

[0078] After the three claws of the living body sampling three-claw forceps 5 are closed, the cutter 501 will no longer cause damage to other tissues. At this time, the living body sampling three-claw forceps 5 can be moved close to the sampling position. The bottom surface of the living body sampling three-claw forceps 5 can be provided with an inner groove for storing hemostatic drugs, and protected by a fat-soluble membrane. When the living body sampling three-claw forceps 5 presses the sampling position, the fat-soluble membrane dissolves, and the hemostatic drugs are released to assist in hemostasis. At the same time, the living body sampling three-claw forceps 5 can slow down the speed of blood outflow to a certain extent.

[0079] Specifically, the bottom side surface of the straight pipe section 2 is coated with a lubricating layer 206 .

[0080] With the lubricating layer 206, the smoothness of the tube probe can be improved when the tube probe is inserted into the human body, and the discomfort of the human body can be appropriately reduced.

[0081] When the straight tube section 2 is inserted, it can be used in combination with an electronic bronchoscope to perform local magnification of the biopsy site, facilitating the insertion of the straight tube section 2 and accurately reaching the designated position.

[0082] Working principle:

[0083] When the device is in use, the straight tube section 2 is inserted from the respiratory tract. At this time, the characteristics of the curved tube section 1 are utilized to adapt to the changes in the respiratory tract, allowing the straight tube section 2 to reach the sampling position of the living body, and the liquid path in the straight tube section 2 enters the corresponding liquid path control equipment.

[0084] Then, by controlling the liquid in the first liquid path 204, hydraulic pressure is formed to raise the height of the first piston 2041 and lower the height of the fixed sleeve 401, while simultaneously lowering the height of the main control rod 3, and the living body sampling three-jawed clamp 5 is extended from the cylindrical chute 203, and the spring rod 402 is further compressed.

[0085] Then, the living body sampling three-jawed clamp 5 contacts the tissue at the sampling site, and the ball sleeve 602 is adjusted to slide along the outside of the universal ball 601 to adjust the orientation of the living body sampling three-jawed clamp 5. Then, the living body sampling three-jawed clamp 5 is opened, and the position of the living body sampling three-jawed clamp 5 is adjusted so that the sampled living body is between the three claws. Slowly close the three claws, and the cutter 501 cuts part of the living body to separate the living body tissue. Then, the closing degree is controlled until the cut living body is fixed under the living body sampling three-jawed clamp 5. After the three claws of the living body sampling three-jawed clamp 5 are closed, the cutter 501 will not harm other tissue assemblies. At this time, the living body sampling three-jawed clamp 5 can be pressed against the sampling position to assist in hemostasis with the release of medication.

[0086] After a certain period of time, the living body sampling three-jawed clamp 5 is controlled to be retracted into the outer channel 202, and it can be removed from the body. In this way, the living body sampling is completed.

[0087] Example 3:

[0088] Based on the above examples 1 and 2, further descriptions are made.

[0089] The opening and closing angle of the living body sampling three-jawed clamp 5 is adjustable within the range of 0-120°.

[0090] An integrated micro force sensor can be installed on the lubricating layer 206, and the sampling pressure feedback range is 0-5N.

[0091] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any person skilled in the art who, within the technical scope disclosed by the present invention, makes equivalent substitutions or modifications based on the technical solutions and improved concepts of the present invention shall be covered by the scope of protection of the present invention.

Claims

1. An endoscopic biopsy device for respiratory and critical illnesses, comprising a curved tube section (1) and a straight tube section (2), wherein the straight tube section (2) is located at one end of the curved tube section (1), and is characterized in that: The curved pipe section (1) and the straight pipe section (2) both adopt a three-layer composite structure. The straight pipe section (2) is provided with an inner groove body (201), an outer through groove (202) and a cylindrical slide groove (203). The inner groove body (201) is close to the curved pipe section (1), and the outer through groove (202) is far away from the curved pipe section (1). The inner groove body (201) and the outer through groove (202) are connected through the cylindrical slide groove (203). The inner part of the cylindrical slide groove (203) is slidably connected with a main control rod (3). A type of control component (4) is provided in the inner groove body (201). The type of control component (4) controls the main control rod (3) to slide up and down. A three-claw clamp (5) for sampling living organisms is provided at the bottom end of the main control rod (3). A second type of control component (6) is provided in the cylindrical slide groove (203). The second type of control component (6) controls the three-claw clamp (5) for sampling living organisms to open or close.

2. The endoscopic biopsy device for respiratory and critical illness according to claim 1, characterized in that: The outer diameters of the curved pipe section (1) and the straight pipe section (2) are the same, and the curved pipe section (1) includes a plurality of universal joints; The length of the straight pipe section (2) is much shorter than the length of the curved pipe section (1).

3. The endoscopic biopsy device for respiratory and critical illness according to claim 1, characterized in that: The three-layer composite structure consists of an outer PTFE coating, a middle nickel-titanium alloy braided mesh, and an inner silicone lining. The PTFE coating, nickel-titanium alloy braided mesh, and silicone lining are melted to form an integrated structure, and the thickness of the silicone lining is much greater than that of the PTFE coating and nickel-titanium alloy braided mesh.

4. The endoscopic biopsy device for respiratory and critical illness according to claim 1, characterized in that: The first type of control assembly (4) comprises a fixing sleeve (401), wherein the fixing sleeve (401) is fixed to the side of the main control rod (3); A spring rod (402) is hinged between one side of the fixing sleeve (401) and the inner bottom of the inner tank (201), and the spring rod (402) always remains in a compressed state.

5. The endoscopic biopsy device for respiratory and critical illness according to claim 4, characterized in that: A fiber rope (403) is hinged on the other side of the fixed sleeve (401), a first liquid path (204) is opened on the straight pipe section (2), a first piston (2041) is slidably connected in the first liquid path (204), and the bottom end of the first piston (2041) is fixed to one end of the fiber rope (403).

6. The endoscopic biopsy device for respiratory and critical illness according to claim 5, characterized in that: The first liquid path (204) comprises two continuous cavities, an upper cavity and a lower cavity, the inner diameter of the lower cavity is larger than the inner diameter of the upper cavity, and the first piston (2041) slides in the lower cavity.

7. The endoscopic biopsy device for respiratory and critical illness according to claim 1, characterized in that: The second type control component (6) includes a universal ball (601), a ball sleeve (602) is provided on the outside of the universal ball (601), the ball sleeve (602) slides along the outside of the universal ball (601), and the living body sampling three-claw forceps (5) is fixed to the bottom end of the ball sleeve (602).

8. The endoscopic biopsy device for respiratory and critical illness according to claim 7, characterized in that: A continuous passage (6011) is provided inside the universal ball (601) and the main control rod (3), and a T-shaped push rod (6012) with a piston head is pushed in the passage (6011); A hose (6013) is connected to the side of the internal passage (6011) of the main control rod (3), and a second liquid path (205) is opened on the side of the straight pipe section (2), and the second liquid path (205) is communicated with the hose (6013).

9. The endoscopic biopsy device for respiratory and critical illness according to claim 1, characterized in that: The three claws of the three-clawed forceps (5) for taking living organism samples are pressed against each other when closed; A cutter (501) is provided at the bottom end of one of the claw hooks.

10. The endoscopic biopsy device for respiratory and critical illness according to claim 1, characterized in that: The bottom end side surface of the straight pipe section (2) is coated with a lubricating layer (206).

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