CN119837610B - A thoracentesis device - Google Patents
A thoracentesis device Download PDFInfo
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- CN119837610B CN119837610B CN202510241117.7A CN202510241117A CN119837610B CN 119837610 B CN119837610 B CN 119837610B CN 202510241117 A CN202510241117 A CN 202510241117A CN 119837610 B CN119837610 B CN 119837610B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/34—Trocars; Puncturing needles
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/34—Trocars; Puncturing needles
- A61B17/3417—Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
- A61B17/3421—Cannulas
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/34—Trocars; Puncturing needles
- A61B17/3494—Trocars; Puncturing needles with safety means for protection against accidental cutting or pricking, e.g. limiting insertion depth, pressure sensors
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/34—Trocars; Puncturing needles
- A61B17/3498—Valves therefor, e.g. flapper valves, slide valves
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/34—Trocars; Puncturing needles
- A61B17/3417—Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
- A61B2017/3454—Details of tips
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- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
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- Heart & Thoracic Surgery (AREA)
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- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
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- Veterinary Medicine (AREA)
- External Artificial Organs (AREA)
Abstract
本发明提供了一种胸腔穿刺装置，涉及医疗器械技术领域，包括固定支架，固定支架包括定位侧板，定位侧板前端横向滑动安装有活动定位板，活动定位板前端纵向旋转安装有调节定位架，调节定位架包括旋转底座，旋转底座顶部两侧横向旋转安装有一对夹持盘，两个夹持盘内侧的滚珠之间夹持有穿刺抽液针，穿刺抽液针包括穿刺针管，穿刺针管内沿轴线滑动安装有滑动支撑管，滑动支撑管前端固定安装有穿刺针头，滑动支撑管内部沿轴线滑动安装有滑动传输管，本发明通过可以伸缩的穿刺针头可以更全面有效的清理患者胸腔内的积液；本发明通过滑动传输管内部的两条通道分别进行排液和药物传输，可以避免排液和输药共用同一针管导致残留药液回流。
The present invention provides a thoracic puncture device, which relates to the technical field of medical devices, including a fixed bracket, the fixed bracket includes a positioning side plate, a movable positioning plate is installed with a transverse sliding front end of the positioning side plate, an adjustment positioning bracket is installed with a longitudinal rotation front end of the movable positioning plate, the adjustment positioning bracket includes a rotating base, a pair of clamping disks are installed with a transverse rotation on both sides of the top of the rotating base, a puncture and fluid extraction needle is clamped between the balls on the inner sides of the two clamping disks, the puncture and fluid extraction needle includes a puncture needle tube, a sliding support tube is installed in the puncture needle tube along the axis, a puncture needle is fixedly installed at the front end of the sliding support tube, and a sliding transmission tube is installed in the sliding support tube along the axis. The present invention can more comprehensively and effectively clean the effusion in the patient's thoracic cavity through the retractable puncture needle; the present invention performs drainage and drug transmission respectively through two channels inside the sliding transmission tube, which can avoid the reflux of residual drug liquid caused by sharing the same needle tube for drainage and drug delivery.
Description
Technical Field
The invention relates to the technical field of medical equipment, in particular to a thoracic cavity puncture device.
Background
Thoracocentesis is a common diagnostic and therapeutic method for clinical work in pulmonary surgery, and is usually performed by a sterilized puncture needle penetrating into skin tissue, intercostal tissue, parietal pleura and then entering into the pleural cavity, and extracting effusion in the pleural cavity for detection or extracting excessive effusion for treatment of patients, or by puncturing a puncture needle into the pleural cavity for drug delivery.
However, the existing puncture needle can only perform single execution in extracting effusion or delivering medicines, so that the treatment process is longer, and meanwhile, the puncture needle cannot move in the chest cavity to cause that local effusion cannot be extracted smoothly.
The invention provides a thoracocentesis device based on the above.
Disclosure of Invention
The invention provides a thoracic cavity puncture device which comprises a fixed bracket, wherein the fixed bracket comprises a positioning side plate, the front end of the positioning side plate is transversely and slidably provided with a movable positioning plate, the front end of the movable positioning plate is longitudinally and rotatably provided with an adjusting positioning frame, the adjusting positioning frame comprises a rotating base, two sides of the top of the rotating base are transversely and rotatably provided with a pair of clamping discs, the inner sides of the clamping discs are rotatably provided with a plurality of supporting balls, a puncture liquid suction needle is clamped between the balls on the inner sides of the two clamping discs, the puncture liquid suction needle comprises a puncture needle tube, the inner side of the puncture needle tube is slidably provided with a sliding support tube along an axis, the front end of the sliding support tube is fixedly provided with a puncture needle head, the puncture needle head is provided with a transmission hole, the front end of the inner wall of the transmission hole of the puncture needle head is fixedly provided with an annular support frame, the annular support frame shape is the ring of chamfer, and inclination is the same with puncture syringe needle top, and the slip stay tube rear end is equipped with the screw thread, the inside slip transmission pipe that has along axis slidable mounting of slip stay tube, slip transmission pipe top is equipped with the transmission storehouse, and the transmission storehouse back at slip transmission pipe top is equipped with the transmission mouth, and the inside baffle that is equipped with of slip transmission pipe, slip transmission pipe top fixed mounting have the pinhole baffle, and the pinhole baffle is the oval baffle of slope, and inclination is the same with puncture syringe needle top, pinhole baffle bottom and annular support frame contact cooperation, and the transmission storehouse at slip transmission pipe top is interior to have the current-limiting case along axis swivelling mounting, fixed mounting has torsion spring between current-limiting case and the slip transmission pipe.
Further, a deflector rod is fixedly arranged on the outer wall of the current-limiting valve core, the deflector rod is arranged at the symmetrical central line position of the current-limiting valve core, an adjusting plate is fixedly arranged on the inner wall of the pinhole baffle, and the deflector rod on the outer wall of the current-limiting valve core is in contact fit with the adjusting plate on the inner wall of the pinhole baffle.
Further, the baffle in the sliding transmission pipe divides the inner wall of the sliding transmission pipe into two channels, the two channels in the sliding transmission pipe are communicated with the transmission bin at the top of the sliding transmission pipe, and the flow limiting valve core is in contact fit with the top of the channel in the sliding transmission pipe.
Further, the transmission gear pole rear end is rotationally installed along the axis and is adjusted the handle first, and first adjustment handle rear end is rotationally installed the second and is adjusted the handle, first adjustment handle cooperates with the screw thread lead screw on the slip stay tube, slip transmission tube rear end is equipped with the gear line, and the transmission gear pole is transversely rotationally installed to puncture needle tubing rear end outer lane, and the gear line meshes with the gear line of slip transmission tube rear end, second adjustment handle inner circle is equipped with the gear line, and the gear line meshing of second adjustment handle inner circle.
Further, the outer tube connector is fixedly arranged at the bottom of the puncture needle tube, the supporting hard tube is fixedly arranged at the bottom of the puncture needle tube, the outer transmission tube is fixedly arranged on the inner wall of the rear end of the supporting hard tube, and the soft connecting tube is fixedly arranged between the outer transmission tube and the outer tube connector.
Further, the regulation bull stick is transversely rotatably installed at location curb plate top, and fixed mounting has the screw rod on the regulation bull stick, movable locating plate rear end is fixed with rack board, and rack board transverse sliding installs in the location curb plate, and rack board cooperates with the screw rod worm on the regulation bull stick.
Further, a plurality of first fixed sucking discs are fixedly arranged at the bottom of the positioning side plate, a first air suction rod is fixedly arranged at the top of the positioning side plate and communicated with the first fixed sucking discs, a second fixed sucking disc is fixedly arranged at the bottom of the movable positioning plate, a second air suction rod is fixedly arranged at the top of the movable positioning plate, and the second air suction rod is communicated with the second fixed sucking discs.
Further, the locating teeth are fixedly arranged on two sides of the top of the rotating base, the U-shaped clamping plate is transversely and rotatably arranged on the top of the rotating base, the adjusting pressure rods are fixedly arranged on the inner walls of two sides of the U-shaped clamping plate and rotatably arranged on the outer side of the clamping disc, a pair of locating rods are slidably arranged on the outer side of the clamping disc along the radial direction, compression springs are fixedly arranged between the bottoms of the locating rods and the clamping disc, the locating rods are in contact fit with the locating teeth, the trapezoidal keys are fixedly arranged on the outer side of the clamping disc, the inner walls of the adjusting pressure rods are conical surfaces, and the inclined surfaces of the trapezoidal keys on the outer sides of the locating rods are in contact fit with the inner walls of the adjusting pressure rods.
Further, the inside of the soft connecting pipe and the inside of the front half part of the outer conveying pipe are fixedly provided with baffle plates and fixedly connected, and the baffle plates inside the soft connecting pipe are fixedly connected with the baffle plates inside the sliding conveying pipe.
Compared with the prior art, the invention has the advantages that (1) the needle tube can swing through the telescopic puncture needle head when the needle tube is penetrated into the chest cavity of a patient without puncturing tissues in the patient, and can more comprehensively and effectively clean effusion in the chest cavity of the patient, (2) the invention can control the opening or closing of the transmission hole at the top of the puncture needle head through the sliding transmission tube and the pinhole baffle, can prevent the residual human tissues in the transmission hole from blocking an exhaust channel when the puncture needle head is penetrated into the patient, and can ensure smoother exhaust process, and (3) the invention can respectively perform liquid discharge and drug transmission through two channels in the sliding transmission tube, thereby avoiding residual liquid medicine backflow caused by sharing the same needle tube by liquid discharge and drug delivery, and simultaneously avoiding frequent replacement of the needle tube and reducing discomfort of the patient.
Drawings
FIG. 1 is a schematic top view of the present invention.
Fig. 2 is a schematic side view of the present invention.
FIG. 3 is a schematic diagram of the overall structure of the present invention.
Fig. 4 is a schematic view of the overall bottom structure of the present invention.
FIG. 5 is a schematic diagram showing the semi-sectional structure of the puncture and liquid suction needle of the present invention.
Fig. 6 is a schematic view of the whole structure of the sliding support tube of the present invention.
Fig. 7 is a schematic view showing a half-sectional structure of the sliding support rod of the present invention.
Fig. 8 is a schematic view of the whole structure of the sliding transmission pipe of the present invention.
Fig. 9 is a schematic view of an assembled structure of the sliding support tube of the present invention.
Fig. 10 is a schematic view of an assembly structure of the adjusting and positioning rack of the present invention.
Fig. 11 is an enlarged schematic view of the structure at A1 in fig. 4.
Fig. 12 is an enlarged schematic view of the structure at B1 in fig. 7.
Fig. 13 is an enlarged schematic view of the structure at C1 in fig. 8.
Fig. 14 is an enlarged schematic view of the structure at D1 in fig. 10.
The reference numerals comprise a 1-fixed bracket, a 2-puncture liquid suction needle, a 3-adjusting and locating bracket, a 101-locating side plate, a 102-first fixed sucker, a 103-first sucker rod, a 104-adjusting rotating rod, a 105-movable locating plate, a 106-second sucker rod, a 107-second fixed sucker, a 108-rack plate, a 201-puncture needle tube, a 202-first adjusting handle, a 203-second adjusting handle, a 204-supporting hard tube, a 205-outer transmission tube, a 206-soft connecting tube, a 207-puncture needle, a 208-sliding supporting tube, a 209-sliding transmission tube, a 210-transmission gear rod, a 211-annular supporting frame, a 212-current limiting valve core, a 213-pinhole baffle, a 214-outer tube connecting head, a 301-rotating base, a 302-U-shaped clamping plate, a 303-adjusting pressure rod, 304-locating teeth, a 305-clamping disc and a 306-locating rod.
Detailed Description
The technical scheme provided by the invention is further described below with reference to the accompanying drawings and according to the specific embodiments.
As shown in fig. 1-14, a thoracic cavity puncture device comprises a fixed support 1, the fixed support 1 comprises a positioning side plate 101, a movable positioning plate 105 is transversely and slidably installed at the front end of the positioning side plate 101, an adjusting positioning frame 3 is longitudinally and rotatably installed at the front end of the movable positioning plate 105, the adjusting positioning frame 3 comprises a rotating base 301, a pair of clamping discs 305 are transversely and rotatably installed at two sides of the top of the rotating base 301, a plurality of supporting balls are rotatably installed at the inner sides of the clamping discs 305, a puncture suction needle 2 is clamped between the balls at the inner sides of the two clamping discs 305, an adjusting rotating rod 104 is transversely and rotatably installed at the top of the positioning side plate 101, a screw is fixedly installed on the adjusting rotating rod 104, a toothed plate 108 is fixedly installed at the rear end of the movable positioning plate 105, the toothed plate 108 is transversely and slidably installed in the positioning side plate 101, the toothed plate 108 is matched with a screw worm on the adjusting rotating rod 104, the toothed plate 108 is used for adjusting the sliding position of the movable positioning plate 105 on the positioning side plate 101, the adjustment and fixation are facilitated, a plurality of first fixing suckers 102 are fixedly installed at the bottom of the positioning side plate 101, a first suction rod 103 is fixedly installed at the top of the positioning side plate 101, a second suction rod 103 is fixedly installed at the top of the first suction rod 102, a second suction rod 102 is fixedly connected with the first suction rod 102 and a second suction rod 107 fixedly connected to the second suction rod 107, and a patient is fixedly installed at the bottom of the second suction rod 107.
As shown in fig. 1-14, positioning teeth 304 are fixedly mounted on two sides of the top of the rotating base 301, a U-shaped clamping plate 302 is transversely and rotatably mounted on the top of the rotating base 301, an adjusting pressure lever 303 is fixedly mounted on two side inner walls of the U-shaped clamping plate 302, the adjusting pressure lever 303 is rotatably mounted on the outer side of the clamping plate 305, a pair of positioning rods 306 are slidably mounted on the outer side of the clamping plate 305 along the radial direction, compression springs are fixedly mounted between the bottoms of the positioning rods 306 and the clamping plate 305, the positioning rods 306 are in contact fit with the positioning teeth 304, trapezoidal keys are fixedly mounted on the outer side of the clamping plate 305, the inner walls of the adjusting pressure lever 303 are conical surfaces, inclined surfaces of the trapezoidal keys on the outer side of the positioning rods 306 are in contact fit with the inner walls of the adjusting pressure lever 303, the adjusting pressure lever 303 is pushed to slide in the clamping plate 305 through the cooperation of the conical surfaces on the inner side of the clamping plate 305 and the trapezoidal keys on the clamping plate 305, the positioning rods 306 are driven to slide in the clamping plate 305, and are not matched with the positioning teeth 304, so that the clamping plate 305 can rotate on the top of the rotating base 301 and are used for adjusting the rotation angle of the puncture liquid needle 2, and the puncture liquid needle 2 is convenient to fix and adjust the angle when the puncture liquid needle 2.
As shown in fig. 1-14, the puncture drainage needle 2 comprises a puncture needle tube 201, a sliding support tube 208 is slidably mounted in the puncture needle tube 201 along an axis, a puncture needle 207 is fixedly mounted at the front end of the sliding support tube 208, a transmission hole is formed in the puncture needle 207, the sliding support tube 208 is used for puncturing the skin of a patient, and simultaneously, the puncture drainage needle 2 is retracted into the puncture needle tube 201 after being punctured into the chest cavity of the patient, so that the puncture drainage needle 2 can shake in the chest cavity of the patient without scratching tissues in the patient, the puncture drainage needle 2 is convenient for removing accumulated liquid or air in dead angles in the chest cavity of the patient, threads are arranged at the rear end of the sliding support tube 208, a first adjusting handle 202 is rotatably mounted at the rear end of a transmission gear rod 210 along the axis, the first adjusting handle 202 is matched with a threaded screw rod on the sliding support tube 208, and the telescopic position of the sliding support tube 208 in the puncture needle tube 201 can be adjusted by rotating the first adjusting handle 202.
As shown in fig. 1-14, an annular supporting frame 211 is fixedly arranged at the front end of the inner wall of a transmission hole of a puncture needle 207, the shape of the annular supporting frame 211 is a bevel ring, the inclination angle is the same as that of the top of the puncture needle 207, a sliding transmission pipe 209 is slidably arranged inside a sliding supporting pipe 208 along the axis, the sliding transmission pipe 209 is used for discharging air or effusion in the chest of a patient, meanwhile, the medicine is transmitted into the chest of the patient, a transmission bin is arranged at the top of the sliding transmission pipe 209, a transmission port is arranged at the back of the transmission bin at the top of the sliding transmission pipe 209, the transmission port is a common inlet and outlet for discharging air and liquid medicine, a baffle is arranged inside the sliding transmission pipe 209 and used for dividing the inside of the sliding transmission pipe 209 into two pipelines for transmitting liquid medicine and discharging air, a pinhole baffle 213 is fixedly arranged at the top of the sliding transmission pipe 209, the pinhole baffle 213 is an inclined elliptic baffle, the inclination angle is the same as that of the top of the puncture needle 207 and is used for blocking the transmission hole in the puncture needle 207, and preventing foreign matters from adhering in an exhaust channel when the puncture needle 207 punctures the chest of the patient.
As shown in fig. 1 to 14, the bottom of the pinhole baffle 213 is in contact fit with the annular supporting frame 211, a current limiting valve core 212 is rotatably installed along an axis in a transmission bin at the top end of the sliding transmission pipe 209, a torsion spring is fixedly installed between the current limiting valve core 212 and the sliding transmission pipe 209, the current limiting valve core 212 is in contact fit with the top of an internal channel of the sliding transmission pipe 209 and is used for adjusting the opening or closing of the two channels, a deflector rod is fixedly installed on the outer wall of the current limiting valve core 212 and is installed at the symmetrical central line position of the current limiting valve core 212, an adjusting plate is fixedly installed on the inner wall of the pinhole baffle 213, the deflector rod on the outer wall of the current limiting valve core 212 is in contact fit with the adjusting plate on the inner wall of the pinhole baffle 213 and is used for controlling the current limiting valve core 212 to rotate in the transmission bin at the top of the sliding transmission pipe 209, a second adjusting handle 203 is rotatably installed at the rear end of the first adjusting handle 202, the rear end of the sliding transmission tube 209 is provided with gear patterns, the outer ring of the rear end of the puncture needle tube 201 is transversely and rotatably provided with a transmission gear rod 210, the transmission gear rod 210 is meshed with the gear patterns at the rear end of the sliding transmission tube 209, the inner ring of the second adjusting handle 203 is provided with the gear patterns, the gear patterns at the inner ring of the second adjusting handle 203 are meshed with the transmission gear rod 210, the transmission gear rod 210 is driven to rotate on the puncture needle tube 201 by rotating the second adjusting handle 203, the transmission gear rod 210 rotates to drive the sliding transmission tube 209 to rotate in the sliding support tube 208, simultaneously, the bottom of the pinhole baffle 213 is contacted and matched with the top of the annular support frame 211 to drive the pinhole baffle 213 to slide towards the top end direction of the puncture needle 207 along the inclined surface of the top of the annular support frame 211, so that the sliding transmission tube 209 slides out of the outer side of the puncture needle 207 for a certain distance, and leaks out of a transmission port at the rear end of the top transmission bin of the sliding transmission tube 209, meanwhile, when the sliding transmission pipe 209 rotates, the adjusting plate on the inner wall of the annular supporting frame 211 is contacted with the deflector rod on the outer wall of the flow-limiting valve core 212, so that the flow-limiting valve core 212 is driven to reversely rotate in the transmission bin at the top of the sliding transmission pipe 209, and a corresponding channel in the sliding transmission pipe 209 is closed, so that the device is controlled to exhaust or transmit medicines.
As shown in fig. 1-14, an outer pipe connector 214 is fixedly installed at the bottom of a puncture needle tube 201, a supporting hard pipe 204 is fixedly installed at the bottom of the puncture needle tube 201, an outer transmission pipe 205 is fixedly installed on the inner wall of the rear end of the supporting hard pipe 204, a soft connecting pipe 206 is fixedly installed between the outer transmission pipe 205 and the outer pipe connector 214, a partition plate is fixedly installed inside the soft connecting pipe 206 and the front half part of the outer transmission pipe 205 and fixedly connected with the partition plate inside the soft connecting pipe 206, the baffle plate inside the sliding transmission pipe 209 is fixedly connected with the baffle plate inside the sliding transmission pipe 206, and the soft connecting pipe 206 is used for counteracting torsional stress generated between the sliding transmission pipe 209 and the outer transmission pipe 205 when the sliding transmission pipe 209 rotates in a transmission gear rod 210, so that the sliding transmission pipe 209 is prevented from being damaged.
When the thoracentesis drainage treatment is carried out on a patient, firstly, a positioning side plate 101 is attached to the side surface of the thoracentesis of the patient, a first air suction rod 103 is pulled to enable a first fixed sucker 102 to be adsorbed on the body surface of the patient, then an adjusting rotating rod 104 is rotated to adjust the sliding position of a movable positioning plate 105 on the positioning side plate 101, the penetrating position of a puncture liquid suction needle 2 is adjusted, and then a second air suction rod 106 is pulled to enable a second fixed sucker 107 to be adsorbed on the surface of the thoracentesis of the patient, so that the penetrating position is fixed;
Then the two sides of the U-shaped clamping plate 302 are pressed according to the requirement to adjust the penetration angle of the puncture liquid suction needle 2, the sliding supporting tube 208 is driven to slide in the puncture needle tube 201 by rotating the first adjusting handle 202 after the fixed angle is reached, the puncture needle head 207 extends out of the puncture needle tube 201, the puncture needle tube 201 can be smoothly penetrated into the thoracic cavity of a patient, the first adjusting handle 202 is pulled to rotate unidirectionally on the puncture needle tube 201 after the puncture needle head 207 reaches the required position, the puncture needle head 207 is retracted into the puncture needle tube 201, the tissue in the patient is prevented from being damaged by the puncture needle head 207, the second adjusting handle 203 is rotated to drive the sliding transmission tube 209 to rotate in the sliding supporting tube 208, the sliding transmission tube 209 extends out of the top of the puncture needle head 207, waste gas or effusion in the patient is extracted through the transmission port at the top of the sliding transmission tube 209, and meanwhile the effusion at dead angle in the thoracic cavity of the patient can be adjusted at any time;
after the effusion is discharged, the second adjusting handle 203 is reversely rotated to reversely rotate the flow limiting valve core 212 in the sliding transmission pipe 209, a medicine discharging channel in the sliding transmission pipe 209 is opened, and the medicine liquid is conveyed into the chest of the patient for treatment through the puncture needle tube 201.
Claims (6)
1. The utility model provides a thoracocentesis device, including fixed bolster (1), a serial communication port, fixed bolster (1) include location curb plate (101), location curb plate (101) front end transversely slidable mounting has movable locating plate (105), movable locating plate (105) front end longitudinal rotation installs regulation locating rack (3), regulation locating rack (3) are including rotating base (301), rotating base (301) top both sides transversely rotatable installs a pair of grip block (305), grip block (305) inboard roll-mounting has a plurality of support balls, the centre gripping has puncture drainage needle (2) between the ball of two grip block (305) inboard, puncture drainage needle (2) include puncture needle tube (201), install sliding support tube (208) along axis slidable mounting in puncture needle tube (201), sliding support tube (208) front end fixed mounting has puncture needle (207), be equipped with the transmission hole on puncture needle (207), transmission hole inner wall front end fixed mounting of puncture needle (207) has annular support frame (211), annular support frame (211) shape is the chamfer, inclination is the same with puncture (207) top, sliding support tube (208) rear end is equipped with sliding support tube (208) inner slide tube (209) along axis slidable mounting has transmission tube (209), the back of a transmission bin at the top of the sliding transmission pipe (209) is provided with a transmission port, a baffle is arranged in the sliding transmission pipe (209), the top of the sliding transmission pipe (209) is fixedly provided with a pinhole baffle (213), the pinhole baffle (213) is an inclined elliptical baffle, the inclination angle is the same as that of the top of the puncture needle (207), the bottom of the pinhole baffle (213) is in contact fit with the annular support frame (211), a flow-limiting valve core (212) is rotatably arranged in the transmission bin at the top of the sliding transmission pipe (209) along an axis, and a torsion spring is fixedly arranged between the flow-limiting valve core (212) and the sliding transmission pipe (209);
The outer wall of the current limiting valve core (212) is fixedly provided with a deflector rod, the deflector rod is arranged at the symmetrical central line position of the current limiting valve core (212), the inner wall of the pinhole baffle (213) is fixedly provided with an adjusting plate, and the deflector rod on the outer wall of the current limiting valve core (212) is in contact fit with the adjusting plate on the inner wall of the pinhole baffle (213) and is used for controlling the current limiting valve core (212) to rotate in a transmission bin at the top of the sliding transmission pipe (209);
The baffle in the sliding transmission pipe (209) divides the inner wall of the sliding transmission pipe (209) into two channels, the two channels in the sliding transmission pipe (209) are communicated with the transmission bin at the top of the sliding transmission pipe (209), and the flow limiting valve core (212) is in contact fit with the top of the channel in the sliding transmission pipe (209);
The utility model discloses a puncture needle tube (201), including puncture needle tube (201), transmission gear pole (210) is installed in horizontal rotation of puncture needle tube (201) rear end outer lane, and first adjustment handle (202) is installed along the axis rotation to transmission gear pole (210) rear end, and second adjustment handle (203) is installed in rotation of first adjustment handle (202) rear end, screw thread lead screw cooperation on first adjustment handle (202) and the slip stay tube (208), slip transmission tube (209) rear end is equipped with the gear line, and transmission gear pole (210) and the gear line meshing of slip transmission tube (209) rear end, second adjustment handle (203) inner circle is equipped with the gear line, and the gear line and the transmission gear pole (210) meshing of second adjustment handle (203) inner circle.
2. The thoracocentesis device according to claim 1, wherein an outer tube connector (214) is fixedly mounted at the bottom of the puncture needle tube (201), a supporting hard tube (204) is fixedly mounted at the bottom of the puncture needle tube (201), an outer transmission tube (205) is fixedly mounted on the inner wall of the rear end of the supporting hard tube (204), and a soft connecting tube (206) is fixedly mounted between the outer transmission tube (205) and the outer tube connector (214).
3. The thoracocentesis device according to claim 1, wherein an adjusting rotating rod (104) is transversely and rotatably arranged at the top of the positioning side plate (101), a screw is fixedly arranged on the adjusting rotating rod (104), a rack plate (108) is fixedly arranged at the rear end of the movable positioning plate (105), the rack plate (108) is transversely and slidably arranged in the positioning side plate (101), and the rack plate (108) is matched with a screw worm on the adjusting rotating rod (104).
4. The thoracocentesis device according to claim 1, wherein a plurality of first fixing suckers (102) are fixedly mounted at the bottom of the positioning side plate (101), a first air suction rod (103) is fixedly mounted at the top of the positioning side plate (101), the first air suction rod (103) is communicated with the first fixing suckers (102), a second fixing sucker (107) is fixedly mounted at the bottom of the movable positioning plate (105), a second air suction rod (106) is fixedly mounted at the top of the movable positioning plate (105), and the second air suction rod (106) is communicated with the second fixing sucker (107).
5. The thoracic cavity puncture device according to claim 1, wherein positioning teeth (304) are fixedly mounted on two sides of the top of the rotating base (301), a U-shaped clamping plate (302) is transversely and rotatably mounted on the top of the rotating base (301), an adjusting pressure lever (303) is fixedly mounted on two inner walls of the two sides of the U-shaped clamping plate (302), the adjusting pressure lever (303) is rotatably mounted on the outer side of the clamping plate (305), a pair of positioning rods (306) are slidably mounted on the outer side of the clamping plate (305) along the radial direction, compression springs are fixedly mounted between the bottoms of the positioning rods (306) and the clamping plate (305), the positioning rods (306) are in contact fit with the positioning teeth (304), trapezoidal keys are fixedly mounted on the outer side of the clamping plate (305), the inner wall of the adjusting pressure lever (303) is a conical surface, and the inclined surfaces of the trapezoidal keys on the outer side of the positioning rods (306) are in contact fit with the inner wall of the adjusting pressure lever (303).
6. The thoracocentesis device according to claim 2, wherein the inner portion of the flexible connecting tube (206) and the inner portion of the front half portion of the outer transmission tube (205) are fixedly provided with a partition plate and fixedly connected, and the partition plate in the inner portion of the flexible connecting tube (206) is fixedly connected with the baffle plate in the inner portion of the sliding transmission tube (209).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202510241117.7A CN119837610B (en) | 2025-03-03 | 2025-03-03 | A thoracentesis device |
Applications Claiming Priority (1)
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| CN211460435U (en) * | 2019-12-11 | 2020-09-11 | 中国人民解放军第四军医大学 | Composite single thoracentesis drainage device |
| CN219021439U (en) * | 2022-09-20 | 2023-05-16 | 广东医科大学 | A thoracentesis needle fixing device |
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| JP4578868B2 (en) * | 2004-06-23 | 2010-11-10 | オリンパス株式会社 | Endoscopic puncture needle |
| US20060200041A1 (en) * | 2005-03-04 | 2006-09-07 | Ethicon Endo-Surgery, Inc. | Biopsy device incorporating an adjustable probe sleeve |
| CN112244952B (en) * | 2020-09-28 | 2021-07-06 | 南通大学附属医院 | Safety protection type breast tumor puncture device and working method |
| CN215458470U (en) * | 2021-06-11 | 2022-01-11 | 张鹏 | Controllable puncture-assisted liquid aspiration device based on ultrasound guidance |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN211460435U (en) * | 2019-12-11 | 2020-09-11 | 中国人民解放军第四军医大学 | Composite single thoracentesis drainage device |
| CN219021439U (en) * | 2022-09-20 | 2023-05-16 | 广东医科大学 | A thoracentesis needle fixing device |
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