An angle-adjustable ultrasound-guided puncture needle

Abstract

The application provides an angle-adjustable ultrasonic guiding puncture needle, which comprises an inner core needle (6) arranged in the inner cavity of an outer needle (7); an inner core needle slot coaxial with the needle body is arranged at the inner core needle; a connecting rod structure (1) is swingably arranged in the inner core needle slot; an ultrasonic transducer (5) is arranged at the head end of the connecting rod structure at the needle tip of the inner core needle; when the target tissue is punctured, the connecting rod structure and the ultrasonic transducer enter the target tissue along with the inner core needle, and the ultrasonic wave emission direction of the ultrasonic transducer changes along with the swing of the connecting rod structure; the application can adjust the ultrasonic detection range by variable angle or variable direction ultrasonic wave during the puncture detection process.

Description

Technical Field

[0001] The present invention relates to the technical field of medical equipment, in particular to an angle-adjustable ultrasound-guided puncture needle. Background Art

[0002] Currently, there are numerous types and models of puncture needles, but real-time guidance of their trajectory is not yet complete. Ultrasound guidance can provide the operator with information on the distribution of specific structures within the punctured tissue, guiding the needle's trajectory to avoid sensitive tissues. This can significantly reduce the risk of over-puncture. Summary of the Invention

[0003] The present invention provides an angle-adjustable ultrasound-guided puncture needle, which can adjust the ultrasonic detection range by using ultrasonic waves with variable angles or directions during the puncture detection process.

[0004] The present invention adopts the following technical solutions.

[0005] An angle-adjustable ultrasound-guided puncture needle comprises an inner core needle (6) disposed in the inner cavity of an outer needle (7); an inner core needle groove is provided on the inner core needle in the same direction as the needle body; a connecting rod structure (1) is mounted in the inner core needle groove in a swingable manner; an ultrasonic transducer (5) is mounted at the head end of the connecting rod structure located at the needle tip of the inner core needle; when puncturing a target tissue, the connecting rod structure and the ultrasonic transducer enter the target tissue along with the inner core needle, and the ultrasonic wave emission direction of the ultrasonic transducer changes with the swing of the connecting rod structure.

[0006] A handle (2) is provided at the rear of the puncture detection needle; the tail of the connecting rod structure is fixed to the handle.

[0007] A push-pull handle (9) is also provided at the rear of the puncture detection needle; the push-pull handle is supported on the handle (2) by a spring structure.

[0008] The tail of the inner core needle is arc-shaped, so that the moving direction of the ultrasonic transducer during the puncture operation is more consistent with the moving direction of the puncture detection needle.

[0009] The connecting rod structure is installed at the inner core needle groove of the inner core needle in an adhesive manner.

[0010] The cross section of the connecting rod structure is circular.

[0011] The connecting rod structure is fixed in the inner core needle groove of the inner core needle via a pin shaft (4) in a swingable manner; a dial head is provided at the tail end of the rear handle at the rear of the puncture detection needle; when the dial head is manually dialed, the connecting rod structure rotates around the pin shaft.

[0012] The tail of the connecting rod structure is provided with a balance limiting structure for limiting the toggling direction of the toggle head to a direction perpendicular to the pin shaft, so as to prevent the connecting rod from rotating around the connecting rod axis when being toggled.

[0013] The portion of the connecting rod structure inserted into the inner core needle groove is provided with an elastic damping member (3) between the connecting rod structure and the wall of the inner core needle groove for resetting the connecting rod; the damping member enables the connecting rod structure to remain consistent with the direction of travel of the puncture detection needle when in a free position, and when the dial head is turned to deflect the connecting rod structure in the inner core needle groove, the damping member uses elastic force to reset the connecting rod structure in the inner core needle groove.

[0014] A method for using an ultrasonically guided puncture needle with adjustable angle, using the ultrasonically guided puncture needle described above, when performing puncture, the user places the ultrasonic transducer of the transmitting end of the ultrasonic detection device on the needle tip of the inner core needle, and attaches the receiving end of the ultrasonic detection device to the outer wall of the tissue to be tested, and the ultrasonic transducer penetrates into the tissue to be tested together with the puncture probe. If the needle tip of the inner core needle reaches the ultrasonic detection position in the tissue to be tested, the operator turns the dial head to make the connecting rod structure in the inner core needle groove form an angle with its initial position, so that when the puncture needle is stationary, the ultrasonic transducer in the puncture needle is in a swing to expand the ultrasonic scanning range. When the receiving end at the outer wall of the tissue to be tested receives the ultrasonic signal emitted by the ultrasonic transducer in the puncture needle, it can provide more complete information and path selection for the puncture route to be performed subsequently for the puncture detection, so that the subsequent puncture process can more easily avoid specific tissues and prevent excessive puncture.

[0015] Compared with existing technologies, the present invention offers the following advantages: it changes the current situation of blind and experience-based puncture operations, uses a more intuitive method to determine the distribution and status of target tissues during puncture, and evaluates the puncture path in real time. This significantly reduces the risk of puncture operations and avoids puncture failures.

[0016] In the present invention, the ultrasonic transducer is a single-element, adhesively mounted device. By adhering to the connecting rod structure, it enters the target along with the puncture needle, obtaining real-time information during the puncture process. Unlike traditional puncture needles, the connecting rod structure is fixed to the inner core needle via a pin, with the pin acting as the rotating shaft. By turning the dial, the inner core needle can be rotated a certain angle within the slotted inner core needle, significantly increasing the area covered by the ultrasonic signal and thereby obtaining more comprehensive position information. During the puncture operation, the ultrasonic feedback signal from the ultrasonic transducer can be used to assess the position of the puncture needle and the internal conditions of the target, thus avoiding excessive puncture. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments:

[0018] Attachment Figure 1is a schematic diagram of the present invention;

[0019] Attachment Figure 2 Schematic diagram of the ultrasonic transducer swinging as the connecting rod moves in the present invention;

[0020] Attachment Figure 3 is a schematic diagram of the connecting rod being fixed by a pin in the present invention;

[0021] Attachment Figure 4 Schematic diagram of the cross section of the puncture detection needle including the connecting rod;

[0022] Attachment Figure 5 It is a schematic diagram of the cooperation between the connecting rod and the elastic damping member;

[0023] Attachment Figure 6 Schematic diagram of an inner core needle, an inner core needle groove, and an inner core needle head;

[0024] In the figure: 1-connecting rod structure; 2-handle; 3-elastic damping member; 4-pin shaft; 5-ultrasonic transducer; 6-inner needle; 7-outer needle; 8-spring structure; 9-push-pull handle. DETAILED DESCRIPTION

[0025] As shown in the figure, an ultrasonically guided puncture needle with adjustable angle is shown. The puncture needle includes an inner core needle 6 placed in the inner cavity of an outer needle 7; an inner core needle groove is provided at the inner core needle in the same direction as the needle body; a connecting rod structure 1 is installed in the inner core needle groove in a swingable manner; an ultrasonic transducer 5 is installed at the head end of the connecting rod structure located at the needle tip of the inner core needle. When puncturing the target tissue, the connecting rod structure and the ultrasonic transducer enter the target tissue along with the inner core needle, and the ultrasonic emission direction of the ultrasonic transducer changes with the swing of the connecting rod structure.

[0026] A handle 2 is provided at the rear of the puncture detection needle; the tail of the connecting rod structure is fixed to the handle.

[0027] A push-pull handle 9 is further provided at the rear of the puncture detection needle; the push-pull handle is supported on the handle 2 by a spring structure 8 .

[0028] The tail of the inner core needle is arc-shaped, so that the moving direction of the ultrasonic transducer during the puncture operation is more consistent with the moving direction of the puncture detection needle.

[0029] The connecting rod structure is installed at the inner core needle groove of the inner core needle in an adhesive manner.

[0030] The cross section of the connecting rod structure is circular.

[0031] The connecting rod structure is fixed in the inner core needle groove of the inner core needle in a swingable manner via the pin shaft 4; a dial head is provided at the tail end of the rear handle of the puncture detection needle; when the dial head is manually dialed, the connecting rod structure rotates around the pin shaft.

[0032] The tail of the connecting rod structure is provided with a balance limiting structure for limiting the toggling direction of the toggle head to a direction perpendicular to the pin shaft, so as to prevent the connecting rod from rotating around the connecting rod axis when being toggled.

[0033] The part of the connecting rod structure that passes through the inner core needle groove is provided with an elastic damping member 3 for resetting the connecting rod between it and the wall of the inner core needle groove; the damping member enables the connecting rod structure to remain consistent with the direction of travel of the puncture detection needle when it is in the free position. When the dial head is turned to deflect the connecting rod structure in the inner core needle groove, the damping member uses elastic force to reset the connecting rod structure in the inner core needle groove.

[0034] A method for using an ultrasonically guided puncture needle with adjustable angle, using the ultrasonically guided puncture needle described above, when performing puncture, the user places the ultrasonic transducer of the transmitting end of the ultrasonic detection device on the needle tip of the inner core needle, and attaches the receiving end of the ultrasonic detection device to the outer wall of the tissue to be tested, and the ultrasonic transducer penetrates into the tissue to be tested together with the puncture probe. If the needle tip of the inner core needle reaches the ultrasonic detection position in the tissue to be tested, the operator turns the dial head to make the connecting rod structure in the inner core needle groove form an angle with its initial position, so that when the puncture needle is stationary, the ultrasonic transducer in the puncture needle is in a swing to expand the ultrasonic scanning range. When the receiving end at the outer wall of the tissue to be tested receives the ultrasonic signal emitted by the ultrasonic transducer in the puncture needle, it can provide more complete information and path selection for the puncture route to be performed subsequently for the puncture detection, so that the subsequent puncture process can more easily avoid specific tissues and prevent excessive puncture.

[0035] Example:

[0036] This example is a medical device used for puncture surgery, an adjustable-angle ultrasound-guided puncture needle. It consists of a connecting rod structure to which the ultrasonic transducer is attached, an inner core needle with an optimized tip and a slot for the connecting rod structure, an outer needle, a handle, a pin to secure the connecting rod, two dampers located within the inner needle slot, and a spring return mechanism at the rear. During puncture, the doctor adjusts the dial to create an angle between the connecting rod structure and its initial position, thereby expanding the scanning range. This provides more complete information and path selection for the puncture procedure, ensuring that the patient's organs and tissues are avoided during the puncture process and reducing the possibility of over-puncture.

[0037] In this case, the needle is improved by designing a puncture needle with an arc-shaped tail and a groove opened in the arc-shaped part to accommodate the connecting rod structure equipped with the ultrasonic transducer;

[0038] Place two dampers with strong elasticity in the gap between the inner core needle groove and the connecting rod structure, such as Figure 5As shown. When the connecting rod structure is in the free position (i.e. the dial head is not toggled), it can keep consistent with the forward direction of the needle and will not be deflected due to resistance of the puncture needle entering the human body or foreign matter entering the groove. After the connecting rod structure rotates, the connecting rod structure can also return to the free position without toggling the dial head, as shown. Figure 4 shown.

[0039] The pin serves as the rotating shaft of the connecting rod structure, such as Figure 3 When the dial is turned, the connecting rod structure deflects in the slot, and the area covered by the ultrasonic signal is similar to a fan shape, as shown in Figure 2 As shown in the figure, the scanning area is expanded, providing doctors with more comprehensive information about the patient and more options for the direction of puncture, greatly reducing the possibility of excessive puncture causing harm to the patient.

[0040] This medical device changes the current blind and empirical nature of puncture procedures. It uses a more intuitive method to determine the distribution and condition of various tissues during the puncture process, allowing for real-time assessment of the puncture path. This significantly reduces the risk of puncture surgery and avoids harm to the patient or even puncture failure due to individual patient circumstances. The ultrasonic transducer is a single-element, adhesively mounted device. Adhered to a connecting rod structure, it enters the patient's body along with the puncture needle, providing real-time information about the puncture process. Unlike traditional puncture needles, the connecting rod is secured to the inner core needle via a pin. Using the pin as a pivot, the dial can be rotated within the slotted inner core needle to a certain angle, significantly increasing the area covered by the ultrasonic signal and providing more comprehensive position information. By utilizing the ultrasonic feedback signal from the ultrasonic transducer during the puncture procedure, the position of the puncture needle and the patient's internal condition can be assessed, preventing over-puncture or injury to the patient.

Claims

1. An angle-adjustable ultrasound-guided puncture needle, characterized by: The puncture needle comprises an inner core needle (6) placed in the inner cavity of an outer needle (7); an inner core needle groove is provided on the inner core needle in the same direction as the needle body; a connecting rod structure (1) is installed in the inner core needle groove in a swingable manner; an ultrasonic transducer (5) is installed at the head end of the connecting rod structure located at the needle tip of the inner core needle, and when puncturing the target tissue, the connecting rod structure and the ultrasonic transducer enter the target tissue along with the inner core needle, and the ultrasonic wave emission direction of the ultrasonic transducer changes with the swing of the connecting rod structure; A handle (2) is provided at the rear of the puncture needle; the tail of the connecting rod structure is fixed to the handle; The connecting rod structure is fixed in the inner core needle groove of the inner core needle via a pin shaft (4) in a swingable manner; a dial head is provided at the tail end of the rear handle of the puncture needle; when the dial head is manually dialed, the connecting rod structure rotates around the pin shaft; The tail of the connecting rod structure is provided with a balance limit structure for limiting the toggling direction of the toggle head to a direction perpendicular to the pin shaft, so as to prevent the connecting rod from rotating around the connecting rod axis when being toggled; The portion of the connecting rod structure inserted into the inner core needle groove is provided with an elastic damping member (3) between the connecting rod structure and the wall of the inner core needle groove for resetting the connecting rod; the damping member enables the connecting rod structure to remain consistent with the direction of travel of the puncture needle when in a free position, and when the dial head is turned to deflect the connecting rod structure in the inner core needle groove, the damping member uses elastic force to reset the connecting rod structure in the inner core needle groove; The tail of the inner core needle is arc-shaped, so that the moving direction of the ultrasonic transducer during the puncture operation is more consistent with the moving direction of the puncture needle.

2. The angle-adjustable ultrasound-guided puncture needle according to claim 1, characterized in that: A push-pull handle (9) is also provided at the rear of the puncture needle; the push-pull handle is supported on the handle (2) by a spring structure.

3. The angle-adjustable ultrasound-guided puncture needle according to claim 1, characterized in that: The cross section of the connecting rod structure is circular.

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