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CN-122005019-A - Pericardial puncture needle with intra-needle ultrasound and puncture system

CN122005019ACN 122005019 ACN122005019 ACN 122005019ACN-122005019-A

Abstract

The invention provides a pericardial puncture needle with intra-needle ultrasound and a puncture system, which belong to the technical field of medical appliances, puncture is performed under the guidance of conventional transthoracic ultrasound, the ultrasound plane is inconsistent with the needle point in position and direction, the guidance effect on the puncture process is limited, and the puncture system is highly dependent on the hand feeling and technology of a puncture person. The ultrasonic needle comprises a needle body, a needle tail shell, an ultrasonic rod and a piston rod, wherein an axial cavity channel is formed in the rear end of the needle body, a channel disc is arranged at the rear end of the needle body, a pipe body connecting port communicated with the cavity channel is formed in the channel disc, an axial piston channel is formed in the needle tail shell, one end of the needle tail shell is connected to the tail end of the needle body, the cavity channel is communicated with the piston channel, the other end of the needle tail shell is connected with a hydraulic source pipeline, the ultrasonic rod is provided with an ultrasonic head at one end, the piston disc is arranged at the other end of the ultrasonic rod, one end of the ultrasonic head of the ultrasonic rod is arranged in the cavity channel in a sliding mode, and one end of the piston disc of the ultrasonic rod is arranged in the piston channel in a sliding mode. Has the technical effects of improving puncture positioning precision, depth controllability, operation safety and clinical operability.

Inventors

  • QIAN DEHUI
  • YANG WENTAO
  • WANG WEI

Assignees

  • 中国人民解放军陆军军医大学第二附属医院

Dates

Publication Date
20260512
Application Date
20260302

Claims (10)

  1. 1. A pericardial puncture needle with intra-needle ultrasound, comprising: The needle body (11) is provided with an axial cavity channel, the rear end of the needle body (11) is provided with a channel disc (111), and a pipe body connecting port (112) communicated with the cavity channel is arranged on the channel disc (111); The needle tail shell (12) is provided with an axial piston channel, one end of the needle tail shell (12) is connected to the tail end of the needle body (11), the cavity channel is communicated with the piston channel, and the other end of the needle tail shell (12) is connected with a hydraulic source pipeline (122); And an ultrasonic rod (13), wherein an ultrasonic head (131) is arranged at one end of the ultrasonic rod (13), a piston disc (132) is arranged at the other end of the ultrasonic rod, the ultrasonic head (131) of the ultrasonic rod (13) is slidably arranged in the cavity channel, the piston disc (132) of the ultrasonic rod (13) is slidably arranged in the piston channel, and the sliding position of the piston disc is controlled by the hydraulic source pipeline (122).
  2. 2. A pericardial puncture system with intra-needle ultrasound, characterized by: a pericardial puncture needle comprising an intraneedle ultrasound as recited in claim 1; The needle tail machine further comprises a driver (2), the driver (2) comprises a driving shell (21) and a driving gear (22), the driving gear (22) is rotatably arranged in the driving shell (21), the needle tail shell (12) axially penetrates through the driving gear (22) and is in threaded fit (23) with the driving gear (22), and the needle tail shell (12) simultaneously axially penetrates through the driving shell (21) and is in sliding fit with the driving shell (21); The needle tail shell (12) is matched with the driving shell (21), a limit convex strip (211) is arranged in an inner hole of the driving shell (21), a limit groove (121) is formed in the periphery of the needle tail shell (12), and the limit convex strip (211) is embedded with the limit groove (121) and is in sliding fit with the limit groove, so that the maximum sliding range between the driving shell (21) and the needle tail shell (12) can be limited.
  3. 3. A pericardial puncture system with intra-needle ultrasound as set forth in claim 2, wherein: The driver (2) further comprises a driving gear ring (24) and a planetary gear (25); the driving gear ring (24) and the driving gear (22) are coaxially arranged, the driving gear ring (24) is located on the outer side of the driving gear (22), the driving gear ring (24) is also rotationally arranged in the driving shell (21), the planetary gear (25) is arranged between the driving gear (22) and the driving gear ring (24) and is meshed with the driving gear ring and the driving gear ring at the same time, and a gear shaft of the planetary gear (25) is rotationally arranged in the driving shell (21).
  4. 4. A pericardial puncture system with in-needle ultrasound as set forth in claim 3, wherein: the driving gear ring (24) is wider than the planetary gear (25), one part of the inner ring of the driving gear ring (24) in the width direction is meshed with the planetary gear (25), and the other part is meshed with the input gear (26) and driven by the motor (27).
  5. 5. A pericardial puncture system with in-needle ultrasound as set forth in claim 3, wherein: Still include support frame (3), support frame (3) one end detachable connect in the terminal surface of drive shell (21), the other end extends towards needle body (11) pointed end and the tip of this end is equipped with contact pad (32), support frame (3) are equipped with the cavity that is used for holding needle body (11).
  6. 6. A pericardial puncture system with in-needle ultrasound as set forth in claim 5, wherein: The support frame (3) further comprises a transmission gear (34), a transmission rack (35) and a handle (3311), wherein the handle (3311) is arranged in the middle of the support frame (3); The end face of the driving gear ring (24) facing one end of the supporting frame (3) is provided with a fluted disc (241), the transmission gear (34) is arranged at one end of the supporting frame (3) facing the driver (2) through a one-way bearing (37), the axis of the transmission gear (34) is perpendicular to the axis of the fluted disc (241), the transmission rack (35) is axially parallel to the needle body (11), the transmission rack (35) is provided with a pressing handle (341), the handle (3311) of the supporting frame (3) is provided with a guide groove (3312) for sliding of the pressing handle (341), and a reset elastic piece (36) is arranged between the pressing handle (341) and the bottom of the guide groove (3312); When the supporting frame (3) is installed on the driving shell (21), the transmission gear (34) is meshed with the fluted disc (241), and the transmission gear (34) can be driven by the transmission rack (35).
  7. 7. A pericardial puncture system with intra-needle ultrasound according to claim 6, characterized in that the support frame (3) has a contact pad (32) at one end and an end plate (31) connected to the drive housing (21) at the other end, the contact pad (32) and the end plate (31) are connected by a bottom housing (33), the drive rack (35) is located in the bottom housing (33), and the needle body (11) is located outside the bottom housing (33).
  8. 8. A pericardial puncture system with intra-needle ultrasound as set forth in claim 7, wherein a transparent cover (38) is connected between the bottom case (33) and the end plate (31), the needle body (11) is located in the transparent cover (38), a through hole is provided in the middle of the contact pad (32), and the tip of the needle body (11) faces the through hole and is located outside the transparent cover (38).
  9. 9. A pericardial puncture system with in-needle ultrasound according to claim 5, characterized in that a camera (331) is further provided on the support (3), the camera (331) facing the contact pad (32).
  10. 10. A pericardial puncture system with intra-needle ultrasound according to claim 2, characterized in that the driver (2) is further provided with a transparent housing (28) on the side facing away from the needle body (11), said needle tail housing (12) being always located in said transparent housing (28) during axial movement.

Description

Pericardial puncture needle with intra-needle ultrasound and puncture system Technical Field The invention relates to the technical field of medical instruments, in particular to a pericardial puncture needle with intra-needle ultrasound and a puncture system. Background Pericardial puncture is an important means for diagnosing and treating pericardial diseases in clinic, and the puncture needle can be used for extracting effusion in pericardial cavity or injecting medicine, thereby defining the cause of disease and effectively diagnosing and treating heart diseases. The technique has extremely high operation precision requirement, and the pericardial cavity position needs to be accurately positioned so as to avoid damaging surrounding structures such as cardiac muscle, coronary artery or lung tissue. Traditional pericardial puncture mainly relies on transthoracic ultrasound guidance, but has the significant limitation that the spatial position and the advancing direction of an ultrasound plane and a puncture needle point are difficult to match in real time, so that the image guidance effect in operation is limited. This misalignment of the ultrasound plane with the penetration path makes the procedure highly dependent on the operator's experience judgment and manual control capability. Disclosure of Invention Aiming at the defects of the prior art, the invention provides a pericardial puncture needle with intra-needle ultrasound and a puncture system, which are used for solving the problems that the puncture is conducted under the guidance of conventional chest ultrasound, the ultrasound plane is inconsistent with the needle point in position and direction, the guiding effect on the puncture process is limited, and the hand feeling and the technology of a puncture person are highly dependent. The invention adopts the technical scheme that the pericardial puncture needle and the puncture system are provided with an intra-needle ultrasonic. Wherein, a pericardial puncture needle with intra-needle ultrasound, comprising: The needle body is provided with an axial cavity channel, the rear end of the needle body is provided with a channel disc, and the channel disc is provided with a pipe body connecting port communicated with the cavity channel; the needle tail shell is provided with an axial piston channel, one end of the needle tail shell is connected to the tail end of the needle body, the cavity channel is communicated with the piston channel, and the other end of the needle tail shell is connected with a hydraulic source pipeline; and the ultrasonic rod is provided with an ultrasonic head at one end and a piston disc at the other end, one end of the ultrasonic head of the ultrasonic rod is slidably arranged in the cavity channel, one end of the piston disc of the ultrasonic rod is slidably arranged in the piston channel, and the sliding position of the piston disc is controlled by the hydraulic source pipeline. Wherein, a pericardial puncture system with an intra-needle ultrasound, Including a pericardial puncture needle with intra-needle ultrasound as described above; The needle tail shell axially penetrates through the driving gear and is in threaded fit with the driving gear, and simultaneously axially penetrates through the driving shell and is in sliding fit with the driving shell; the needle tail shell is matched with the driving shell, the inner hole of the driving shell is provided with a limit convex strip, the periphery of the needle tail shell is provided with a limit groove, the limit convex strips are embedded with the limit grooves and are in sliding fit, and the maximum sliding range between the driving shell and the needle tail shell can be limited. Optionally, the driver further comprises a driving gear ring and a planetary gear, wherein the driving gear ring and the driving gear are coaxially arranged, the driving gear ring is positioned on the outer side of the driving gear, the driving gear ring is also rotatably arranged in the driving shell, the planetary gear is arranged between the driving gear and the driving gear ring and is meshed with the driving gear ring and the driving gear ring at the same time, and a gear shaft of the planetary gear is rotatably arranged in the driving shell. Alternatively, the driving gear ring is wider than the planetary gear, and a part of an inner ring of the driving gear ring in the width direction is meshed with the planetary gear, and the other part is meshed with the input gear and driven by the motor. Optionally, the needle body comprises a driving shell, a needle body tip and a needle body, wherein the needle body tip is provided with a needle body, the needle body tip is provided with a needle body tip, and the needle body tip is provided with a needle body. Optionally, the support frame further comprises a transmission gear, a transmission rack and a handle, the handle is arranged in the middle of the support frame, a fluted disc is arranged on