AU2021103868A4

AU2021103868A4 - Precise guiding device for medical puncture needle

Info

Publication number: AU2021103868A4
Application number: AU2021103868A
Authority: AU
Inventors: Yong Feng; Wei QIAO; Yufeng Zhang
Original assignee: Jiangsu Cancer Hospital
Current assignee: Jiangsu Cancer Hospital
Priority date: 2021-04-16
Filing date: 2021-07-05
Publication date: 2021-08-26
Anticipated expiration: 2029-07-05
Also published as: CN215938770U

Abstract

The present invention provides a precise guiding device for a medical puncture needle, comprising a puncture needle guiding assembly, wherein the puncture needle guiding assembly comprises a balance plate, a universal level is arranged on a top surface of the balance plate, a puncture angle disc is arranged on a left side of the balance plate, a left side surface of the puncture angle disc is provided with scales in the circumferential direction, a right side of the puncture angle disc is fixedly connected to the left side of the balance plate through two connecting blocks, a puncture needle holder rod is also arranged on the left side of the puncture angle disc, the puncture needle holder rod is provided with a strip puncture needle groove, a middle part of the puncture needle holder rod is rotatably connected to the puncture angle disc through a rotating rod, a left end of the rotating rod is fixedly connected to the puncture needle holder rod, a right end of the rotating rod passes through the puncture angle disc and is connected to an abutment plate, a spring is sleeved outside the rotating rod, a right side surface of the abutment plate is a friction surface A, and a left side surface of the balance plate is a friction surface B. The precise guiding device is not only convenient to carry, can be placed in a sterile surgical kit after disinfection, but also is simple in operation and suitable for quick start by young practitioners, and can precisely guide the puncture needle into a target tumor according to a preset path. ,4 5 1 3 9 FIG1 5 2 3 - 1 4 FIG2

Description

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FIG1

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FIG2

PRECISE GUIDING DEVICE FOR MEDICAL PUNCTURE NEEDLE

Field of the Invention The present invention relates to the technical field of medical devices, and in particular to a precise guiding device for a medical puncture needle.

Background of the Invention Radiation emitted by medical 1-125 radioactive particles has the advantages of high energy, short range, high bio-equivalent dose, etc. Although radioactive particle implantation provides a low-toxic and effective treatment means for tumor patients, radioactive particles need to be manually implanted throughout the entire process, so the operator's technique and hand feel are critical to whether radioactive particles can be precisely implanted into predetermined positions during the operation, and directly affect the treatment effect and prognosis of the patients. If the particles are not accurately implanted into predetermined tumors and stagnate in normal tissues around the tumors, it may cause poor tumor treatment effect and radioactive damage to surrounding normal tissues, and even cause second primary cancers. Radioactive particle implantation is a level II operation, which requires high sterile operation. The instruments used during particle implantation should strictly follow the sterile operation.

Summary of the Invention In order to solve the above problems, the present invention discloses a precise guiding device for a medical puncture needle, which is not only convenient to carry, can be placed in a sterile surgical kit after disinfection, but also is simple in operation and suitable for quick start by young practitioners, and can precisely guide the puncture needle into a target tumor according to a preset path. The specific solution is as follows: A precise guiding device for a medical puncture needle includes a puncture needle guiding assembly, the puncture needle guiding assembly includes a balance plate, the balance plate is a horizontal rectangular plate, a universal level is arranged on a top surface of the balance plate, a vertical puncture angle disc is arranged on a left side of the balance plate, a left side surface of the puncture angle disc is provided with scales in the circumferential direction, a right side of the puncture angle disc is fixedly connected to the left side of the balance plate through two connecting blocks arranged symmetrically front and back, a puncture needle holder rod is also arranged on the left side of the puncture angle disc, the puncture needle holder rod is provided with a strip puncture needle groove along its length, and two ends of the strip puncture needle groove are respectively communicated with two ends of the puncture needle holder rod; the puncture needle holder rod is parallel to the puncture angle disc, a middle part of the puncture needle holder rod is rotatably connected to the puncture angle disc through a rotating rod, the rotating rod is perpendicular to the puncture angle disc, a left end of the rotating rod is fixedly connected to the puncture needle holder rod, a right end of the rotating rod passes through the puncture angle disc and is connected to an abutment plate, a spring is sleeved outside the rotating rod, two ends of the spring respectively abut against the puncture angle disc and the abutment plate, a right side surface of the abutment plate is a friction surface A, and a left side surface of the balance plate is a friction surface B that can prevent the abutment plate from rotating after being in contact with the friction surface A. The precise guiding device for a medical puncture needle according to the claim further includes an auxiliary bracket, the auxiliary bracket includes a longitudinal telescopic rod, a lower end of the longitudinal telescopic rod is fitted with a fixing member, an upper end of the longitudinal telescopic rod is connected with a transverse telescopic rod perpendicular to the longitudinal telescopic rod, one end of the transverse telescopic rod is connected to the upper end of the longitudinal telescopic rod, the other end of the transverse telescopic rod is connected to a connecting rod, an upper end of the connecting rod is connected to the end of the transverse telescopic rod, a lower end of the connecting rod is rotatably connected with an adjusting column, an upper end of the adjusting column is rotatably connected with the connecting rod by a first screw horizontally arranged, a rear end of the first screw is fixedly connected to the connecting rod, a front end of the first screw passes through the adjusting column and is in threaded connection with a first adjusting disc, a lower end of the adjusting column is rotatably connected with the balance plate by a second screw horizontally arranged, a left end of the second screw is fixedly connected to the balance plate by threads, a right end of the second screw passes through the adjusting column and is in threaded connection with a second adjusting disc, the first screw is perpendicular to the second screw, and the second screw is coaxial with the rotating rod. The precise guiding device for a medical puncture needle according to the claim, wherein the fixing member is a fixing clip, and the fixing clip is fitted on a lower end of the longitudinal telescopic rod through a bolt and a nut. The precise guiding device for a medical puncture needle according to the claim, wherein the fixing member is a mobile trolley, the mobile trolley has a cuboid structure, four universal wheels with brakes are uniformly distributed on a bottom surface of the mobile trolley, and a top surface of the mobile trolley is provided with a slot adapted to the lower end of the longitudinal telescopic rod. The beneficial effects of the present invention are as follows: 1. The puncture needle guiding assembly is small in size and convenient to carry, and can '5 be placed in a sterile surgical kit after disinfection; 2. When the puncture needle guiding assembly is used, the puncture needle holder rod is first pulled out and rotated according to the angle requirement, the spring is compressed, the puncture needle holder rod is loosened when rotated to a corresponding angle, the friction surface A of the abutment plate is in close contact with the friction surface B of the balance plate under elastic force, and the abutment plate cannot rotate under friction force, so that the angular position of the puncture needle holder rod is stable; then after the universal level is horizontal, corresponding puncture operation is carried out, so the overall operation is simple and quick, the precise guiding device is suitable for young practitioners to get started quickly, and a puncture needle can be precisely guided into a target tumor according to a preset path; 3. The auxiliary bracket cooperatively designed can assist in supporting the puncture needle guiding assembly, so that the precise guiding device can be adapted to different surgical environment requirements, and the stability during puncture is further improved.

Brief Description of the Drawings FIG. 1 is a top view of a puncture needle guiding assembly in the present invention. FIG. 2 is a front view of the puncture needle guiding assembly in the present invention. FIG. 3 is a left view of the puncture needle guiding assembly in the present invention. FIG. 4 is a schematic structural diagram of a puncture needle holder rod in the present invention. FIG. 5 is a schematic diagram illustrating a combination of the puncture needle guiding assembly and an auxiliary bracket in the present invention, wherein a fixing member of the auxiliary bracket is a fixing clip. FIG. 6 is a cross-sectional view of A-A'in FIG. 5. FIG. 7 is a schematic diagram illustrating a combination of the puncture needle guiding assembly and the auxiliary bracket in the present invention, wherein the fixing member of the auxiliary bracket is a mobile trolley. List of reference numerals:

1 - balance plate, 2 - universal level, 3 - puncture angle disc, 4 - connecting block, 5

puncture needle holder rod, 6 - strip puncture needle groove, 7 - rotating rod, 8 - abutment '5 plate, 9 - spring, 10 - longitudinal telescopic rod, 11- transverse telescopic rod, 12 connecting rod, 13 - adjusting column, 14 - first screw, 15- first adjusting disc, 16 - second screw, 17 - second adjusting disc, 18 - fixing clip, 19 - mobile trolley, 20 - universal wheel with brake, 21 - slot.

Detailed Description of the Embodiments The present invention will be further illustrated below in conjunction with the drawings and specific embodiments. It should be understood that the following specific embodiments are only used to illustrate the present invention and not to limit the scope of the present invention. As shown in the figures, a precise guiding device for a medical puncture needle includes a puncture needle guiding assembly, the puncture needle guiding assembly includes a balance plate 1, the balance plate 1 is a horizontal rectangular plate, a universal level 2 is arranged on a top surface of the balance plate 1, a vertical puncture angle disc 3 is arranged on a left side of the balance plate 1, a left side surface of the puncture angle disc 3 is provided with scales in the circumferential direction, a right side of the puncture angle disc 3 is fixedly connected to the left side of the balance plate1 through two connecting blocks 4 arranged symmetrically front and back, a puncture needle holder rod 5 is also arranged on the left side of the puncture angle disc 3, the puncture needle holder rod 5 is provided with a strip puncture needle groove 6 along its length, and two ends of the strip puncture needle groove 6 are respectively communicated with two ends of the puncture needle holder rod 5; the puncture needle holder rod 5 is parallel to the puncture angle disc 3, a middle part of the puncture needle holder rod 5 is rotatably connected to the puncture angle disc 3 through a rotating rod 7, the rotating rod 7 is perpendicular to the puncture angle disc 3, a left end of the rotating rod 7 is fixedly connected to the puncture needle holder rod 5, a right end of the rotating rod 7 passes through the puncture angle disc 3 and is connected to an abutment plate 8, a spring 9 is sleeved outside the rotating rod 7, two ends of the spring 9 respectively abut against the puncture angle disc 3 and the abutment plate 8, a right side surface of the abutment plate 8 is a friction surface A, and a left side surface of the balance plate 1 is a friction surface B that can prevent the abutment plate 8 from rotating after being in contact with the friction surface A. In this embodiment, the precise guiding device further includes an auxiliary bracket, the auxiliary bracket includes a longitudinal telescopic rod 10, a lower end of the longitudinal telescopic rod 10 is fitted with a fixing member, an upper end of the longitudinal telescopic rod 10 is connected with a transverse telescopic rod 11 perpendicular to the longitudinal telescopic rod 10, one end of the transverse telescopic rod 11 is connected to the upper end of the longitudinal telescopic rod 10, the other end of the transverse telescopic rod 11 is connected to a connecting rod 12, an upper end of the connecting rod 12 is connected to the end of the transverse telescopic rod 11, a lower end of the connecting rod 12 is rotatably connected with an adjusting column 13, an upper end of the adjusting column 13 is rotatably connected with the connecting rod 12 by a first screw 14 horizontally arranged, a rear end of the first screw 14 is fixedly connected to the connecting rod 12, a front end of thefirst screw 14 passes through the adjusting column 13 and is in threaded connection with a first adjusting disc 15, a lower end of the adjusting column 13 is rotatably connected with the balance plate 1 by a second screw 16 horizontally arranged, a left end of the second screw 16 is fixedly connected to the balance plate 1 by threads, a right end of the second screw 16 passes through the adjusting column 13 and is in threaded connection with a second adjusting disc 17, the first screw 14 is perpendicular to the second screw 16, and the second screw 16 is coaxial with the rotating rod 7. In this embodiment, the fixing member is a fixing clip 18, and the fixing clip 18 is fitted on a lower end of the longitudinal telescopic rod 10 through a bolt and a nut. In this embodiment, the fixing member is a mobile trolley 19, the mobile trolley 19 has a cuboid structure, four universal wheels 20 with brakes are uniformly distributed on a bottom surface of the mobile trolley 19, and a top surface of the mobile trolley 19 is provided with a slot 21 adapted to the lower end of the longitudinal telescopic rod 10. The puncture needle guiding assembly of the present invention is small in size and convenient to carry, and can be placed in a sterile surgical kit after disinfection; when the puncture needle guiding assembly is used, the puncture needle holder rod is first pulled out and rotated according to the angle requirement, the spring is compressed, the puncture needle holder rod is loosened when rotated to a corresponding angle, the friction surface A of the abutment plate is in close contact with the friction surface B of the balance plate under elastic force, and the abutment plate cannot rotate under friction force, so that the angular position of the puncture needle holder rod is stable; then after the universal level is horizontal, corresponding puncture operation is carried out, so the overall operation is simple and quick, the precise guiding device is suitable for young practitioners to get started quickly, and a puncture needle can be precisely guided into a target tumor according to a preset path; in addition, the auxiliary bracket cooperatively designed can assist in supporting the puncture needle guiding assembly, so that the precise guiding device can be adapted to different surgical environment requirements, and the stability during puncture is further improved. The technical means disclosed in the solution of the present invention are not limited to the technical means disclosed in the above-mentioned embodiments, but also include '5 technical solutions formed by any combination of the above technical features. It should be pointed out that a person of ordinary skill in the art may further make improvements and modifications without departing from the principle of the present invention, and these improvements and modifications shall fall within the protection scope of the present invention. The reference to any prior art in this specification is not, and should not be taken as, an acknowledgement or any form of suggestion that such prior art forms part of the common general knowledge. It will be understood that the terms "comprise" and "include" and any of their derivatives (e.g. comprises, comprising, includes, including) as used in this specification, and the claims that follow, is to be taken to be inclusive of features to which the term refers, and is not meant to exclude the presence of any additional features unless otherwise stated or implied. In some cases, a single embodiment may, for succinctness and/or to assist in understanding the scope of the disclosure, combine multiple features. It is to be understood that in such a case, these multiple features may be provided separately (in separate embodiments), or in any other suitable combination. Alternatively, where separate features are described in separate embodiments, these separate features may be combined into a single embodiment unless otherwise stated or implied. This also applies to the claims which can be recombined in any combination. That is a claim may be amended to include a feature defined in any other claim. Further a phrase referring to "at least one of' a list of items refers to any combination of those items, including single members. As an example, "at least one of: a, b, or c" is intended to cover: a, b, c, a-b, a-c, b-c, and a-b-c.

Claims

1. A precise guiding device for a medical puncture needle, comprising a puncture needle guiding assembly, wherein the puncture needle guiding assembly comprises a balance plate (1), the balance plate (1) is a horizontal rectangular plate, a universal level (2) is arranged on a top surface of the balance plate (1), a vertical puncture angle disc (3) is arranged on a left side of the balance plate (1), a left side surface of the puncture angle disc (3) is provided with scales in the circumferential direction, a right side of the puncture angle disc (3) is fixedly connected to the left side of the balance plate (1) through two connecting blocks (4) arranged symmetrically front and back, a puncture needle holder rod (5) is also arranged on the left side of the puncture angle disc (3), the puncture needle holder rod (5) is provided with a strip puncture needle groove (6) along its length, and two ends of the strip puncture needle groove (6) are respectively communicated with two ends of the puncture needle holder rod (5); the puncture needle holder rod (5) is parallel to the puncture angle disc (3), a middle part of the puncture needle holder rod (5) is rotatably connected to the puncture angle disc (3) through a rotating rod (7), the rotating rod (7) is perpendicular to the puncture angle disc (3), a left end of the rotating rod (7) is fixedly connected to the puncture needle holder rod (5), a right end of the rotating rod (7) passes through the puncture angle disc (3) and is connected to an abutment plate (8), a spring (9) is sleeved outside the rotating rod (7), two ends of the spring (9) respectively abut against the puncture angle disc (3) and the abutment plate (8), a right side surface of the abutment plate (8) is a friction surface A, and a left side surface of the balance plate (1) is a friction surface B that can prevent the abutment plate (8) from rotating after being in contact with the friction surface A.

2. The precise guiding device for a medical puncture needle according to claim 1, further comprising an auxiliary bracket, wherein the auxiliary bracket comprises a longitudinal telescopic rod (10), a lower end of the longitudinal telescopic rod (10) is fitted with a fixing member, an upper end of the longitudinal telescopic rod (10) is connected with a transverse telescopic rod (11) perpendicular to the longitudinal telescopic rod (10), one end of the transverse telescopic rod (11) is connected to the upper end of the longitudinal telescopic rod (10), the other end of the transverse telescopic rod (11) is connected to a connecting rod (12), an upper end of the connecting rod (12) is connected to the end of the transverse telescopic rod (11), a lower end of the connecting rod (12) is rotatably connected with an adjusting column (13), an upper end of the adjusting column (13) is rotatably connected with the connecting rod (12) by a first screw (14) horizontally arranged, a rear end of the first screw

(14) is fixedly connected to the connecting rod (12), a front end of the first screw (14) passes through the adjusting column (13) and is in threaded connection with a first adjusting disc (15), a lower end of the adjusting column (13) is rotatably connected with the balance plate (1) by a second screw (16) horizontally arranged, a left end of the second screw (16) isfixedly connected to the balance plate (1) by threads, a right end of the second screw (16) passes through the adjusting column (13) and is in threaded connection with a second adjusting disc (17), the first screw (14) is perpendicular to the second screw (16), and the second screw (16) is coaxial with the rotating rod (7).

3. The precise guiding device for a medical puncture needle according to claim 2, wherein the fixing member is a fixing clip (18), and the fixing clip (18) is fitted on a lower end of the longitudinal telescopic rod (10) through a bolt and a nut.

4. The precise guiding device for a medical puncture needle according to claim 2, wherein the fixing member is a mobile trolley (19), the mobile trolley (19) has a cuboid structure, four universal wheels (20) with brakes are uniformly distributed on a bottom surface of the mobile trolley (19), and a top surface of the mobile trolley (19) is provided with a slot (21) adapted to the lower end of the longitudinal telescopic rod (10).