Hepatobiliary surgery puncture device

Abstract

The present application relates to the technical field of liver and gall puncture, in particular to a liver and gall surgical puncture device, and the technical scheme adopted by the present application is the liver and gall surgical puncture device, which comprises a cannula puncture needle and a handle, a control mechanism is arranged on the handle, the control mechanism controls the cannula puncture needle to perform puncture and sampling operations, the puncture needle comprises an outer needle arranged on the outside and an inner needle arranged in the outer needle in a telescopic and sliding manner, the rear end of the outer needle is connected with an outer sleeve, the rear end of the inner needle is connected with a sampling mechanism, the sampling mechanism is located in the outer sleeve, an electric telescopic rod is arranged in the outer sleeve, the telescopic end of the electric telescopic rod is connected with the sampling mechanism, the front end of the outer needle is provided with a puncture outlet, and the inner needle can slide out of the puncture outlet. The present application solves the clinical problems of blood vessel mispuncture and postoperative bleeding in the puncture process, and the problems of insufficient sample acquisition, low efficiency, tedious sampling operation and large trauma to patients in the sampling process.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of puncture equipment, in particular to a liver and gall surgical puncture equipment. BACKGROUND

[0002] In liver and gall surgical operation, puncture operation is an important means to obtain tissue samples, make disease diagnosis and implement treatment. In the puncture process, the traditional puncture equipment usually adopts a sharp needle to puncture. Although this method can achieve the purpose of puncture, it has many disadvantages. The sharp needle is easy to directly pierce the blood vessel or bile duct in the puncture process, thereby causing intraoperative bleeding and increasing the risk of operation. Moreover, the cutting and puncture entering method adopted by the traditional puncture technology can cause great damage to the tissue, especially for important structures such as blood vessels. Once damaged, it can cause serious complications and affect the smooth progress of the operation and the postoperative recovery of the patient.

[0003] In addition, in the sampling process, the operation of the staff is more dependent, and the following problems also exist: the cutting efficiency is insufficient, the pushing speed of the cutting needle in the prior art is insufficient, the tissue cannot be quickly cut off, the sampling effect is poor, and the sampling amount is small. Furthermore, the prior art often needs to repeat puncture due to insufficient single sampling amount, thereby increasing the damage of repeated puncture to the tissue of the patient. SUMMARY

[0004] The present application provides a liver and gall surgical puncture equipment, which solves the technical problems of mispuncture of blood vessels and postoperative bleeding in the puncture process, and the problems of insufficient sample acquisition, low efficiency, tedious sampling operation and large trauma to the patient in the sampling process.

[0005] In order to achieve the above application purpose, the technical scheme adopted by the present application is a liver and gall surgical puncture equipment, which comprises a cannula puncture needle and a handle. A control mechanism is arranged on the handle. The control mechanism controls the cannula puncture needle to perform puncture and sampling operation. The puncture needle comprises an outer needle arranged outside and an inner needle arranged in the outer needle in a telescopic and sliding manner. The rear end of the outer needle is connected to an outer sleeve. The rear end of the inner needle is connected to a sampling mechanism. The sampling mechanism is located in the outer sleeve. An electric telescopic rod is arranged in the outer sleeve. The telescopic end of the electric telescopic rod is connected to the sampling mechanism. The front end of the outer needle is provided with a puncture outlet. The inner needle can slide out of the puncture outlet.

[0006] Further, the inner needle comprises a sampling needle and a cutting needle. The sampling needle is arranged in the cutting needle in a sliding manner. The cutting needle is in the shape of a circular tube, and the front end opening thereof is in the shape of a sharp needle and is provided with a blade. The front end of the sampling needle is in the shape of a sharp needle. The sampling needle is provided with a sampling groove near the front end position.

[0007] When the whole needle sampling, first pull the cutting needle, the sampling groove of the sampling needle leaks, at this time due to the elasticity of the tissue, there will be part of the tissue into the sampling groove, at this time push the cutting needle, the front end of the cutting needle will cut the tissue and store in the sampling groove, and thus completed the sampling.

[0008] Further, the sampling mechanism comprises a sampling shell and an ejection sampling device, the sampling shell is provided with an internal plate, the ejection sampling device is arranged on the internal plate, the ejection sampling device comprises a driving wheel, a rotating ring, a linkage rod, a sliding block, an ejection rod, an ejection frame and a sampling motor, the sampling motor is arranged on the internal plate and is drivingly connected with the driving wheel.

[0009] The driving wheel is rotatably arranged on the internal plate, the rotating ring is rotatably arranged on the internal plate and located on the outer side of the driving wheel, the driving wheel is provided with a driving arm extending therefrom, the rotating ring is provided with a driven arm extending therefrom, the driven arm is provided with a blocking head, when the driving wheel rotates, the blocking head is pushed to rotate the rotating ring, the internal plate is provided with a sliding groove, the sliding block is slidingly arranged in the sliding groove, the linkage rod is hingedly connected with the sliding block and the driven arm at two ends, the ejection rod is connected with the sliding block, the ejection frame is arranged on the internal plate, the ejection rod slidingly passes through the ejection frame, the ejection rod is provided with a spring plate, the spring plate is provided with a spring, the spring is sleeved on the ejection rod and located in the ejection frame, the ejection rod is connected with the cutting needle, and the sampling needle is connected with the ejection frame.

[0010] The sampling motor drives the driving wheel to rotate, and then the driving arm rotates, and then contacts and pushes the blocking head, and then drives the rotating ring to rotate, and then pulls the ejection rod through the linkage rod and squeezes the spring, and continuously squeezes the spring, when the rotating ring rotates half a circle, the driving arm is separated, at this time the spring loses the pulling force, and then the ejection rod is quickly pushed, and then the cutting needle is quickly pushed, and the cutting effect of sampling is improved.

[0011] Further, in order to facilitate the organization into the sampling groove, thereby improving the sampling effect, and improving the volume of the sampled tissue, the sampling shell is provided with an automatic adsorption mechanism, which is arranged on the built-in plate and located on both sides of the built-in plate with the ejection sampling device, and the automatic adsorption mechanism comprises a bidirectional kinetic frame, a ratchet wheel, a mounting rack and a non-powered vacuum pump, the sampling groove is a hollow structure, the bidirectional kinetic frame is connected with a sliding block, the sliding block drives the bidirectional kinetic frame to slide back and forth, both sides of the bidirectional kinetic frame are provided with pawls, and the directions of the pawls on both sides are opposite, the mounting rack is arranged on the built-in plate, the ratchet wheel is rotatably arranged on the mounting rack, and the ratchet wheel is connected with the pawls on both sides, when the bidirectional kinetic frame slides upward, the right pawl drives the ratchet wheel to rotate, and the left pawl does not drive the ratchet wheel, when the bidirectional kinetic frame slides downward, the left pawl drives the ratchet wheel to rotate, and the right pawl does not drive the ratchet wheel, therefore, when the bidirectional kinetic frame slides upward and downward, the ratchet wheel is driven to rotate in the same direction all the time;

[0012] The non-powered vacuum pump is arranged on the mounting rack, and the ratchet wheel is connected with the impeller of the non-powered vacuum pump through a shaft. The rotating force generated by the ratchet wheel is transmitted to the impeller of the non-powered vacuum pump, thereby generating a vacuum adsorption force.

[0013] The sampling needle is provided with a vacuum channel connected to the sampling groove, and the non-powered vacuum pump is connected with the vacuum channel of the sampling needle through a hose.

[0014] Further, the front end of the outer needle is blunt, which can avoid directly piercing the blood vessel or bile duct and reduce the risk of bleeding during the operation, and the blunt outer needle head design replaces the traditional technology of cutting and puncturing through a sharp needle head, realizes extrusion of the tissue through the axial pushing force of the outer needle, uses the ductility of the tissue itself to expand the gap between the tissue fibers, thereby forming a puncture channel, thereby reducing the piercing of the blood vessel and realizing the effect of penetration.

[0015] Further, in order to improve the penetration effect of the outer needle, the control mechanism comprises a vibration device, and the outer sleeve shell is connected with the vibration device.

[0016] In the embodiment, the vibration device is a high-frequency vibration motor, which reduces the adhesion of the tissue through vibration, so that the blunt head is more easily separated from the tissue. Through the blunt separation principle, the shear damage to the fragile structure such as the bile duct is avoided.

[0017] Further, in order to improve the penetration effect of the outer needle, the control mechanism further comprises a reciprocating rotation mechanism, the reciprocating rotation mechanism comprises a rotation housing, a driving gear, a driven gear and a reciprocating gear, the driving gear and the driven gear are rotatably arranged in the rotation housing, and the driving gear and the driven gear are engaged, the driving gear is provided with a first half gear, the driven gear is provided with a second half gear, the reciprocating gear is rotatably arranged in the rotation housing, and the reciprocating gear is engaged with the first half gear and the second half gear, when the first half gear is engaged with the reciprocating gear, the second half gear is not in contact with the reciprocating gear, when the second half gear is engaged with the reciprocating gear, the first half gear is not in contact with the reciprocating gear, and the rotation housing is provided with a motor engaged with the driving gear.

[0018] The reciprocating gear is provided with a rotation connecting shaft, the rotation connecting shaft is connected with the vibration device, and in the process of penetrating the outer needle, the effect of separating the tissue is further improved by means of rapid reciprocating rotation.

[0019] Further, in order to improve the penetration effect of the outer needle, the control mechanism further comprises a reciprocating rotation mechanism, the reciprocating rotation mechanism comprises a rotation housing, a driving gear, a driven gear and a reciprocating gear, the driving gear and the driven gear are rotatably arranged in the rotation housing, and the driving gear and the driven gear are engaged, the driving gear is provided with a first half gear, the driven gear is provided with a second half gear, the reciprocating gear is rotatably arranged in the rotation housing, and the reciprocating gear is engaged with the first half gear and the second half gear, when the first half gear is engaged with the reciprocating gear, the second half gear is not in contact with the reciprocating gear, when the second half gear is engaged with the reciprocating gear, the first half gear is not in contact with the reciprocating gear, and the rotation housing is provided with a motor engaged with the driving gear.

[0020] In one embodiment, the jet generator is a fluid sprayer connected to a fluid source or provided with a storage cavity, which can soften and separate the tissue by spraying physiological saline, and further cooperate with the high-frequency vibration and reciprocating rotation of the outer needle to further improve the penetration effect.

[0021] In one embodiment, the jet generator is a gas pump, which can expand the tissue gap by connecting or injecting CO2 gas through the gas cushion effect.

[0022] Further, the outer wall of the blunt circular front end of the outer needle is provided with a micro sensor window, and a micro sensor is integrated inside the micro sensor window.

[0023] The micro sensor is connected to a detector display, and the sensor detection data is displayed through the detector display to provide real-time data for the operator.

[0024] The beneficial effects of the present application are: the scheme is provided with a blunt outer needle combined with high-frequency vibration and reciprocating rotation, through the principle of blunt separation and micro-vibration, the traditional sharp cutting is replaced, the shear damage to the blood vessel wall is reduced, and the scheme is especially suitable for safe penetration of brittle tissue of patients with liver cirrhosis. The jet assembly is arranged to soften and expand the tissue gap, and the spring energy storage ejection mechanism is arranged through the arrangement of the ejection sampling device, the high-speed advancement of the cutting needle can be quickly completed, the efficiency is improved compared with the traditional manual cutting, the sampling amount is guaranteed by the design of the sampling groove. And the bidirectional kinetic energy frame and the ratchet transmission mechanism are creatively set, the vacuum pump is driven to continuously generate negative pressure through the reciprocating motion of the sliding block, the tissue adsorption effect is realized, and the sample integrity rate is further improved. The integrated design of the scheme links the puncture, sampling and adsorption function modules for linkage control, improves the sampling operation success rate, and avoids the secondary damage risk caused by repeated puncture sampling. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0026] Figure 2 It is a schematic diagram of the internal structure of the whole of the present application;

[0027] Figure 3 It is a schematic diagram of the structure of the outer needle;

[0028] Figure 4 It is Figure 3 the enlarged view of A;

[0029] Figure 5 It is a schematic diagram of the structure of the sampling mechanism;

[0030] Figure 6 It is a schematic diagram of the structure of the automatic adsorption mechanism;

[0031] Figure 7 It is a schematic diagram of the connection of the bidirectional kinetic energy frame and the ratchet;

[0032] Figure 8 It is a schematic diagram of the structure of the inner needle;

[0033] Figure 9 It is a schematic diagram of the structure of the sampling needle;

[0034] Correspondence table of reference signs:

[0035] 1, cannula puncture needle; 2, handle; 3, control mechanism; 4, outer needle; 5, inner needle; 6, outer sleeve; 7, electric telescopic rod; 8, sampling mechanism; 9, puncture outlet; 10, sampling needle; 11, cutting needle; 12, sampling groove; 13, sampling housing; 14, ejection sampling device; 15, built-in plate; 16, drive wheel; 17, rotating ring; 18, linkage rod; 19, sliding block; 20, ejection rod; 21, ejection frame; 22, sampling motor; 23, driving arm; 24, driven arm; 25, blocking head; 26, spring plate; 27, automatic adsorption mechanism; 28, bidirectional kinetic energy frame; 29, ratchet; 30, mounting bracket; 31, non-powered vacuum pump; 32, pawl; 33, speed increasing mechanism; 34, vacuum channel; 35, hose; 36, vibration device; 37, reciprocating rotation mechanism; 38, rotation housing; 39, driving gear; 40, driven gear; 41, reciprocating gear; 42, first half gear; 43, second half gear; 44, rotation connecting shaft; 45, jet pipe; 46, jet generator; 47, jet outlet; 48, miniature sensor window. DETAILED DESCRIPTION

[0036] The specific embodiments of the present application will be further described below with reference to the accompanying drawings. The same parts are denoted by the same reference numerals in the drawings.

[0037] It should be noted that the words "front", "back", "left", "right", "up" and "down" used in the following description refer to the directions in the drawings, and the words "inner" and "outer" refer to the directions towards or away from the geometric center of a particular part.

[0038] In order to make the content of the present application more easily understood, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present application.

[0039] EMBODIMENT

[0040] A kind of hepatobiliary surgery puncture equipment, including cannula puncture needle 1 and handle 2, control mechanism 3 is equipped on the handle 2, control mechanism 3 controls cannula puncture needle 1 to carry out puncture and sampling operation, the puncture needle includes the outer needle 4 for being equipped in the outside, and the inner needle 5 of telescopic, sliding is equipped in the outer needle 4, the outer needle 4 rear end is connected with outer sleeve 6, the inner needle 5 rear end is connected with sampling mechanism 8, sampling mechanism 8 is located in outer sleeve 6, electric telescopic rod 7 is equipped in outer sleeve 6, the telescopic end of electric telescopic rod 7 is connected on sampling mechanism 8, the outer needle 4 front end is equipped with puncture outlet 9, the inner needle 5 can slide and extend out of puncture outlet 9.

[0041] The inner needle 5 comprises a sampling needle 10 and a cutting needle 11, the sampling needle 10 is slidably arranged in the cutting needle 11, the cutting needle 11 is a circular tube, and the front end is open and has a sharp needle shape and a cutting edge; the front end of the sampling needle 10 is sharp, and the sampling groove 12 is arranged at the position close to the front end of the sampling needle 10.

[0042] When the whole inner needle 5 is sampled, the cutting needle 11 is first pulled, the sampling groove 12 of the sampling needle 10 is leaked, at this time, due to the elasticity of the tissue, part of the tissue will enter the sampling groove 12, at this time, the cutting needle 11 is pushed, the front end of the cutting needle 11 cuts the tissue and stores it in the sampling groove 12, thereby completing the sampling.

[0043] The sampling mechanism 8 comprises a sampling shell 13 and an ejection sampling device 14, the sampling shell 13 is provided with an internal plate 15, the ejection sampling device 14 is arranged on the internal plate 15, the ejection sampling device 14 comprises a driving wheel 16, a rotating ring 17, a linkage rod 18, a sliding block 19, an ejection rod 20, an ejection frame 21 and a sampling motor 22, the sampling motor 22 is arranged on the internal plate 15 and is drivingly connected with the driving wheel 16.

[0044] In the embodiment, the sampling motor 22 is a stepping motor.

[0045] The driving wheel 16 is rotatably arranged on the internal plate 15, the rotating ring 17 is rotatably arranged on the internal plate 15 and located on the outer side of the driving wheel 16, the driving arm 23 is extended on the driving wheel 16, the driven arm 24 is extended on the rotating ring 17, the blocking head 25 is arranged on the driven arm 24, when the driving wheel 16 rotates, the blocking head 25 is pushed, thereby driving the rotating ring to rotate, the sliding groove is arranged on the internal plate, the sliding block 19 is slidably arranged in the sliding groove, the linkage rod 18 is hingedly connected with the sliding block 19 and the driven arm 24 at both ends, the ejection rod 20 is connected with the sliding block 19, the ejection frame 21 is arranged on the internal plate 15, the ejection rod 20 slides through the ejection frame 21, the spring plate 26 is arranged on the ejection rod 20, the spring is arranged on the spring plate 26 and is sleeved on the ejection rod 20, and the spring is located in the ejection frame 21, the ejection rod 20 is connected with the cutting needle 11, and the sampling needle 10 is connected with the ejection frame 21.

[0046] The sampling motor 22 drives the driving wheel 16 to rotate, thereby driving the driving arm 23 to rotate, then the driving arm 23 contacts and pushes the blocking head 25, thereby driving the rotating ring to rotate, thereby pulling the ejection rod 20 through the linkage rod 18 and pressing the spring, and continuously pressing the spring, when the rotating ring rotates by half a circle, the driving arm 23 is separated, at this time, the spring loses the pulling force, thereby quickly pushing the ejection rod 20, thereby quickly pushing the cutting needle 11, and improving the cutting effect of sampling.

[0047] In order to facilitate the organization into the sampling groove 12, and improve the sampling effect, and improve the volume of the sampled tissue, the sampling shell 13 is provided with an automatic adsorption mechanism 27, which is arranged on the built-in plate 15, and is located on both sides of the built-in plate 15 with the ejection sampling device 14 respectively, the automatic adsorption mechanism 27 includes a bidirectional kinetic frame 28, a ratchet 29, a mounting bracket 30, a non-power source vacuum pump 31, the sampling groove 12 is a hollow structure, the bidirectional kinetic frame 28 is connected with the sliding block 19, the sliding block 19 drives the bidirectional kinetic frame 28 to slide back and forth, the bidirectional kinetic frame 28 is provided with pawls 32 on both sides, and the directions of the pawls 32 on both sides are opposite, the mounting bracket 30 is arranged on the built-in plate 15, the ratchet 29 is rotatably arranged on the mounting bracket 30, and the ratchet 29 is connected with the pawls 32 on both sides, when the bidirectional kinetic frame 28 slides upward, the right pawl 32 drives the ratchet 29 to rotate, and the left pawl 32 does not drive the ratchet 29, when the bidirectional kinetic frame 28 slides downward, the left pawl 32 drives the ratchet 29 to rotate, and the right pawl 32 does not drive the ratchet 29, therefore, when the bidirectional kinetic frame 28 slides upward and downward, the ratchet 29 is driven to rotate in the same direction all the time;

[0048] The non-power source vacuum pump 31 is arranged on the mounting bracket 30, and the ratchet 29 is connected with the impeller of the non-power source vacuum pump 31 through a shaft. The rotating force generated by the ratchet 29 is transmitted to the impeller of the non-power source vacuum pump 31, thereby generating a vacuum adsorption force.

[0049] In the embodiment, a speed increasing mechanism 33 is arranged between the non-power source vacuum pump 31 and the ratchet 29, and the driving force of the impeller is further improved through gear transmission, thereby further improving the vacuum adsorption force.

[0050] The sampling needle 10 is provided with a vacuum channel 34 connected to the sampling groove 12, and the non-power source vacuum pump 31 is connected with the vacuum channel 34 of the sampling needle 10 through a hose 35.

[0051] The front end of the outer needle 4 is blunt, which can avoid directly piercing the blood vessel or bile duct and reduce the risk of bleeding during the operation. Through the design of the blunt head of the outer needle 4, the traditional technology is replaced by the cutting and piercing entry mode of the sharp needle, the axial pushing force of the outer needle 4 is used to realize the extrusion of the tissue, the extensibility of the tissue itself is used to expand the gap between the tissue fibers, thereby forming a puncture channel, thereby reducing the piercing of the blood vessel and realizing the penetration effect.

[0052] Further, in order to improve the penetration effect of the outer needle 4, the control mechanism 3 includes a vibration device 36, and the outer sleeve shell 6 is connected with the vibration device 36.

[0053] In an embodiment, the vibration device 36 is a high-frequency vibration motor (frequency > 200 Hz, amplitude < 50 μm), which reduces the adhesion of tissues by vibration, making it easier for the blunt head to separate tissues. By the principle of blunt separation, shear damage to fragile structures such as bile ducts is avoided.

[0054] In order to further improve the penetration effect of the outer needle 4, the control mechanism 3 further comprises a reciprocating rotation mechanism 37, which comprises a rotation shell 38, a driving gear 39, a driven gear 40 and a reciprocating gear 41, the driving gear 39 and the driven gear 40 are rotatably arranged in the rotation shell 38, and the driving gear 39 and the driven gear 40 are engaged, the driving gear 39 is provided with a first half gear 42, the driven gear 40 is provided with a second half gear 43, the reciprocating gear 41 is rotatably arranged in the rotation shell 38, and the reciprocating gear 41 is engaged with the first half gear 42 and the second half gear 43, when the first half gear 42 and the reciprocating gear 41 are engaged, the second half gear 43 and the reciprocating gear 41 are not in contact, when the second half gear 43 and the reciprocating gear 41 are engaged, the first half gear 42 and the reciprocating gear 41 are not in contact, and the rotation shell 38 is provided with a motor engaged with the driving gear 39;

[0055] The reciprocating gear 41 is provided with a rotation connecting shaft 44, which is connected with the vibration device 36, and in the process of puncturing the outer needle 4, the effect of separating tissues is further improved by means of rapid reciprocating rotation.

[0056] In order to further improve the separation effect of the outer needle 4, a jet assembly is arranged in the outer sleeve 6, the jet assembly comprises a jet pipe 45 and a jet generator 46, the jet pipe 45 is arranged on the inner wall of the outer needle 4, the jet outlet 47 of the jet pipe 45 is located at the front end of the outer needle 4, and the jet generator 46 is connected with the jet pipe 45.

[0057] In an embodiment, the jet generator 46 is a fluid sprayer, which is connected with a fluid source or provided with a storage cavity, and by spraying physiological saline, the tissues can be softened and separated, further cooperating with the high-frequency vibration and reciprocating rotation of the outer needle 4, to further improve the penetration effect, and the physiological saline sprayed by the fluid sprayer has a pressure lower than 5 bar.

[0058] In an embodiment, the jet generator 46 is a gas pump, which is connected with or injected with CO2 gas, and uses the gas cushion effect to expand the tissue gap.

[0059] The outer wall of the blunt round front end of the outer needle 4 is provided with a micro sensor window 48, and a micro sensor is integrated inside the micro sensor window 48.

[0060] In an embodiment, the micro-sensor window 48 is provided with a fiber-optic temperature sensor to identify metabolically active areas (such as inflammation or tumors) and ischemic areas. The temperature of a tumor area is usually 1-3°C higher than that of normal tissue, which can assist in locating early cancer; when a sudden temperature drop (possibly a blood vessel) is detected, the system automatically triggers an avoidance warning.

[0061] The micro-sensor window 48 is provided with a near-infrared spectroscopy sensor, including a micro-LED light source and a photodiode array, which analyzes the oxygenation state (StO2) of the tissue and the concentration of hemoglobin by reflecting light spectrum (wavelength 650-950 nm). The StO2 of vascular areas is >80%, and the StO2 of solid tissues is <60%, which can accurately distinguish between blood vessels and liver parenchyma; the bile duct obstruction area shows a characteristic absorption peak (wavelength 940 nm) due to bile stasis.

[0062] The micro-sensor window 48 is provided with a micro-ultrasound probe, which emits high-frequency ultrasound waves (20-40 MHz) and receives echoes to generate a local microscopic image (resolution 50 μm). Real-time display of micro-calcification (liver cancer marker) or bile duct wall lamination structure within 0.5 mm in front of the needle tip. When a cystic structure (such as a liver cyst) is detected, the puncture is automatically paused.

[0063] The micro-sensor window 48 is provided with a pH sensor to detect the pH value of the interstitial fluid (range 5.0-8.0) and determine local ischemia or necrosis.

[0064] The micro-sensor is connected to a detector instrument display, which displays the sensor detection data on the detector instrument display, providing real-time data for the operator.

[0065] In specific use, first, the patient's puncture site is anesthetized, and a small incision is cut through surgery, and then the puncture operation is performed. The doctor holds the handle 2, inserts the outer needle 4, and starts the vibration device 36, which vibrates through the high-frequency vibration motor, and sets the frequency >200 Hz and the amplitude <50 μm, so that the outer needle 4 starts to vibrate, to reduce the adhesion of the tissue during subsequent puncture.

[0066] Start the reciprocating rotation mechanism 37, the motor in the rotating shell 38 drives the driving gear 39 to rotate, the driving gear 39 meshes with the driven gear 40, so that the first half gear 42 and the second half gear 43 alternately mesh with the reciprocating gear 41, thereby driving the reciprocating gear 41 to rotate quickly and reciprocally, and then driving the outer needle 4 and the vibration device 36 to rotate quickly and reciprocally synchronously through the rotating connecting shaft 44, further improving the puncture effect.

[0067] The blunt round tip of the outer needle 4 is aligned with the target puncture site, and the tissue is extruded by the axial pushing force of the outer needle 4, and the tissue fiber gap is expanded by the self-extensibility of the tissue to form a puncture channel. Because the front end of the outer needle 4 is blunt and round, it can effectively avoid directly piercing blood vessels or bile ducts, reducing the risk of intraoperative bleeding.

[0068] During the puncture process, the jet assembly on the outer needle 4 starts to work. When the jet generator 46 is a fluid sprayer, it sprays saline at a pressure of <5 bar to soften and separate the tissue, and cooperates with the high-frequency vibration and reciprocating rotation of the outer needle 4 to improve the penetration effect; when the jet generator 46 is a gas pump, it injects gas to expand the tissue gap by air cushion effect to assist puncture. Various micro sensors in the micro sensor window 48 work in real time. The optical fiber temperature sensor identifies the metabolic active area (such as inflammation or tumor) and the ischemic area, and triggers an avoidance warning when a sudden temperature drop (which may be a blood vessel) is detected; the near-infrared spectrum sensor analyzes the oxygenation state (StO2) of the tissue and the hemoglobin concentration through the reflected spectrum (wavelength 650-950 nm), accurately distinguishes blood vessels from liver parenchyma, and identifies the characteristic absorption peak (wavelength 940 nm) of the bile duct obstruction area; the miniature ultrasonic probe emits high-frequency ultrasonic waves (20-40 MHz), receives the echo to generate a local microscopic image (resolution 50 μm), and displays the microcalcification (liver cancer marker) or bile duct wall layered structure within 0.5 mm in front of the needle tip in real time, and automatically pauses the puncture when a cystic structure (such as a liver cyst) is detected; the pH sensor detects the interstitial fluid pH value (range 5.0-8.0) to determine local ischemia or necrosis. The detector display presents the data detected by these sensors in real time, providing a basis for the doctor's operation.

[0069] When the outer needle 4 is punctured in place, the doctor operates the electric telescopic rod 7 to push the inner needle 5 out of the outer needle 4, controls the sampling motor 22 to start, and the sampling motor 22 drives the driving wheel 16 to rotate, the driving arm 23 contacts and pushes the blocking head 25 after rotating, and then drives the rotating ring to rotate, and then pulls the ejection rod 20 through the linkage rod 18, and extrudes the spring, and continuously extrudes the spring, at this time the ejection rod 20 pulls the cutting needle 11, so that the sampling groove 12 on the sampling needle 10 leaks; when the rotating ring rotates half a turn, it is separated from the driving arm 23, at this time the spring loses tension, and then quickly pushes the ejection rod 20, and then quickly pushes the cutting needle 11, the instantaneous ejection force of the cutting needle 11 cuts the tissue and stores it in the sampling groove 12.

[0070] The cutting is simultaneous with the reciprocating sliding of the sliding block 19, and the reciprocating sliding of the bidirectional kinetic energy frame 28 is driven, when the bidirectional kinetic energy frame 28 slides upward, the ratchet wheel 29 is continuously rotated, the rotating force generated by the ratchet wheel 29 is transmitted to the impeller of the non-power source vacuum pump 31, and then the vacuum adsorption force is generated, the adsorption force is generated in the sampling groove 12, the adsorption tissue effect is improved, and then the sampling effect is improved.

[0071] The above only describes the preferred embodiments of the present application patent and is not used to limit the present application patent, any modification, equivalent replacement and improvement made within the spirit and principle of the present application patent should be included in the protection scope of the present application patent.

Claims

1. A hepatobiliary surgical puncture device, characterized in that: The invention comprises a cannula puncture needle (1) and a handle (2), wherein the handle (2) is provided with a control mechanism (3), wherein the control mechanism (3) controls the cannula puncture needle (1) to perform puncture and sampling operations, wherein the puncture needle comprises an outer needle (4) arranged on the outside, and an inner needle (5) arranged in the outer needle (4) in a telescopic and slidable manner, wherein the rear end of the outer needle (4) is connected to the outer shell (6), and the rear end of the inner needle (5) is connected to the sampling mechanism (8), wherein the sampling mechanism (8) is located in the outer shell (6). The outer shell (6) is provided with an electric telescopic rod (7), and the telescopic end of the electric telescopic rod (7) is connected to the sampling mechanism (8); the inner needle (5) includes a sampling needle (10) and a cutting needle (11), and the sampling needle (10) is slidably arranged in the cutting needle (11); the sampling needle (10) is provided with a sampling groove (12) near the front end; the sampling mechanism (8) includes a sampling shell (13), and the sampling shell (13) is provided with a built-in plate (15); the An automatic adsorption mechanism (27) is provided in the sampling housing (13), and the automatic adsorption mechanism (27) is provided on the built-in plate (15). The automatic adsorption mechanism (27) includes a bidirectional kinetic energy frame (28), a ratchet (29), a placement frame (30), and a non-powered vacuum pump (31). The bidirectional kinetic energy frame (28) is connected to the slider (19), and the slider (19) drives the bidirectional kinetic energy frame (28) to slide back and forth. Ratchets are provided on both sides of the bidirectional kinetic energy frame (28). 32), and the directions of the pawls (32) on both sides are opposite, the placement frame (30) is arranged on the built-in plate (15), the ratchet (29) is rotatably arranged on the placement frame (30), and the ratchet (29) and the pawls (32) on both sides are matched and connected; the unpowered vacuum pump (31) is arranged on the placement frame (30), and the ratchet (29) is connected to the impeller of the unpowered vacuum pump (31) through a shaft; the unpowered vacuum pump (31) is connected to the sampling tank (12).

2. The hepatobiliary surgical puncture device according to claim 1, characterized in that: The cutting needle (11) is in the shape of a circular tube, and the front end opening is in the shape of a sharp needle and is provided with a blade; the front end of the sampling needle (10) is in the shape of a sharp needle.

3. The hepatobiliary surgical puncture device according to claim 1, characterized in that: The sampling mechanism (8) includes an ejection sampling device (14), which is arranged on the built-in plate (15) and is respectively located on both sides of the built-in plate (15) with the automatic adsorption mechanism (27). The ejection sampling device (14) includes a driving wheel (16), a rotating ring (17), a linkage rod (18), a slider (19), an ejection rod (20), an ejection frame (21) and a sampling motor (22). The sampling motor (22) is arranged on the built-in plate (15) and is driven and connected to the driving wheel (16); the driving wheel (16) is rotatably arranged on the built-in plate (15), the rotating ring (17) is rotatably arranged on the built-in plate (15) and is located outside the driving wheel (16), a driving arm (23) is extended from the driving wheel (16), and a driven arm (24) is extended from the rotating ring (17). The driven arm (24) is provided with a blocking head (25). When the driving wheel (16) rotates, it pushes the blocking head (25), thereby pushing the rotating ring to rotate. A slide groove is provided on the built-in plate. The slider (19) is slidably arranged in the slide groove. The two ends of the linkage rod (18) are respectively hinged to the slider (19) and the driven arm (24). The ejection rod (20) is connected to the slider (19). The ejection frame (21) is provided on the built-in plate (15). The ejection rod (20) slides through the ejection frame (21). The ejection rod (20) is provided with a spring plate (26). The spring plate (26) is provided with a spring, and the spring is sleeved on the ejection rod (20). The spring is located in the ejection frame (21). The ejection rod (20) is connected to the cutting needle (11), and the ejection frame (21) is connected to the sampling needle (10).

4. The hepatobiliary surgical puncture device according to claim 1, characterized in that: The sampling groove (12) is a hollow structure, a vacuum channel (34) connected to the sampling groove (12) is provided in the sampling needle (10), and the unpowered vacuum pump (31) is connected to the vacuum channel (34) of the sampling needle (10) via a hose (35).

5. The hepatobiliary surgical puncture device according to claim 1, characterized in that: The front end of the outer needle (4) is blunt-circular, and a through-hole (9) is provided at the front end of the outer needle (4). The inner needle (5) can slide out of the through-hole (9).

6. The hepatobiliary surgical puncture device according to claim 1, characterized in that: The control mechanism (3) includes a vibration device (36), and the outer shell (6) is connected to the vibration device (36).

7. The hepatobiliary surgical puncture device according to claim 6, characterized in that: The control mechanism (3) further includes a reciprocating precession mechanism (37), the reciprocating precession mechanism (37) including a precession housing (38), a driving gear (39), a driven gear (40) and a reciprocating gear (41), the driving gear (39) and the driven gear (40) being rotatably disposed in the precession housing (38), and the driving gear (39) and the driven gear (40) being meshed with each other, the driving gear (39) being provided with a first half gear (42), the driven gear (40) being provided with a second half gear (43), and the reciprocating gear (41) being rotatably disposed in the precession housing (38). The reciprocating gear (41) is meshed with the first half gear (42) and the second half gear (43). When the first half gear (42) is meshed with the reciprocating gear (41), the second half gear (43) and the reciprocating gear (41) are not in contact. When the second half gear (43) is meshed with the reciprocating gear (41), the first half gear (42) and the reciprocating gear (41) are not in contact. A motor meshed with the driving gear (39) is provided in the precession housing (38). A precession connecting shaft (44) is provided on the reciprocating gear (41). The precession connecting shaft (44) is connected to the vibration device (36).

8. The hepatobiliary surgical puncture device according to claim 6, characterized in that: A jet assembly is provided in the outer shell (6), and the jet assembly includes a jet pipe (45) and a jet generator (46). The jet pipe (45) is provided on the inner wall of the outer needle (4), and the jet outlet (47) of the jet pipe (45) is located at the front end of the outer needle (4). The jet generator (46) and the jet pipe (45) are connected.

9. The hepatobiliary surgical puncture device according to claim 7, characterized in that: The outer wall of the blunt circular front end of the outer needle (4) is provided with a micro sensor window (48), and a micro sensor is integrated inside the micro sensor window (48).

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