CN114391929A - Ultrasonic endoscope puncture needle - Google Patents

Ultrasonic endoscope puncture needle Download PDF

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Publication number
CN114391929A
CN114391929A CN202111621566.2A CN202111621566A CN114391929A CN 114391929 A CN114391929 A CN 114391929A CN 202111621566 A CN202111621566 A CN 202111621566A CN 114391929 A CN114391929 A CN 114391929A
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CN
China
Prior art keywords
needle
puncture needle
cavity
handle
spring
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Withdrawn
Application number
CN202111621566.2A
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Chinese (zh)
Inventor
曹洋辉
马瑾
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Nanyang Second General Hospital
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Nanyang Second General Hospital
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Publication date
Application filed by Nanyang Second General Hospital filed Critical Nanyang Second General Hospital
Priority to CN202111621566.2A priority Critical patent/CN114391929A/en
Publication of CN114391929A publication Critical patent/CN114391929A/en
Withdrawn legal-status Critical Current

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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
    • A61B17/3403—Needle locating or guiding means
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B10/00—Instruments for taking body samples for diagnostic purposes; Other methods or instruments for diagnosis, e.g. for vaccination diagnosis, sex determination or ovulation-period determination; Throat striking implements
    • A61B10/02—Instruments for taking cell samples or for biopsy
    • A61B10/0233—Pointed or sharp biopsy instruments
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B10/00—Instruments for taking body samples for diagnostic purposes; Other methods or instruments for diagnosis, e.g. for vaccination diagnosis, sex determination or ovulation-period determination; Throat striking implements
    • A61B10/02—Instruments for taking cell samples or for biopsy
    • A61B2010/0208—Biopsy devices with actuators, e.g. with triggered spring mechanisms
    • 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
    • A61B17/3403—Needle locating or guiding means
    • A61B2017/3413—Needle locating or guiding means guided by ultrasound

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • Biomedical Technology (AREA)
  • Engineering & Computer Science (AREA)
  • Pathology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)

Abstract

The invention belongs to the technical field of medical instruments, and particularly relates to an ultrasonic endoscope puncture needle. The novel catapult comprises a handle, wherein a cavity is arranged in the handle, an outer puncture needle is fixedly arranged at one end of the handle, an inner puncture needle is connected in the outer puncture needle in a sliding manner, the inner puncture needle penetrates through the cavity and is connected with a negative pressure connector, an ejection part and a blocking part are arranged in the cavity, the blocking part is positioned in front of the advancing direction of the ejection part, the ejection part is connected with the inner puncture needle, a limiting part is arranged in the cavity and is connected with the ejection part, a starting part is arranged on the handle, and the starting part is matched with the limiting part. The invention provides an ultrasonic endoscope puncture needle, aiming at improving the amount of acquired pathological samples and reducing the difficulty of acquiring tissues.

Description

Ultrasonic endoscope puncture needle
Technical Field
The invention belongs to the technical field of medical instruments, and particularly relates to an ultrasonic endoscope puncture needle.
Background
Interventional therapy under ultrasonic endoscopy is gradually applied to multiple aspects: comprises puncture biopsy under an ultrasonic endoscope, bile duct drainage, pancreatic duct drainage, medicine injection, particle implantation and the like. Regardless of the type of interventional procedure, it is necessary to first insert an ultrasonically guided needle into the target area, and prior art sonoendoscopic needles use explosive forces to insert the needle into the target area. The main structure includes: the biopsy needle consists of a stainless steel cutting sleeve, a needle core, a plastic handle and a trigger. The QCS biopsy needle consists of a coaxial puncture needle (consisting of a needle tube and a needle core) and a QC biopsy needle.
The clinical diagnosis under the guidance of the ultrasonic endoscope mainly comprises fine needle aspiration biopsy under the guidance of the EUS-FNA ultrasonic endoscope and fine needle aspiration biopsy under the guidance of the EUS-FNB ultrasonic endoscope. Due to the difference of the structures of the internal and external puncture needles, the theme core bar of the puncture needle under the endoscope is a plastic piece, and the rigid conduction during puncture cannot be compared with the surgical short straight type all-metal puncture needle. The traditional ultrasonic endoscope puncture needle structure generally adopts a cutting type and a suction type, so that the amount and the positive rate of pathological samples obtained by ultrasonic puncture under an endoscope are low; meanwhile, when the existing endoscopic ultrasonic puncture needle is used for puncture, the details such as strength, direction and the like are completely mastered by the personal experience of an operator.
Disclosure of Invention
In order to solve the above-mentioned problems, the present invention provides an ultrasonic endoscope puncture needle, which aims to increase the amount of pathological specimens obtained and reduce the difficulty of obtaining tissues.
The technical scheme adopted by the invention is as follows:
the utility model provides an supersound scope pjncture needle, includes the handle, be provided with the cavity in the handle, one of handle serves the fixed outer puncture needle that is provided with, outer puncture needle sliding connection has interior pjncture needle, interior pjncture needle passes the cavity and is connected with the negative pressure connector, be provided with in the cavity and launch the part and block the part, it is located the place ahead of launching the part advancing direction to block the part, launch the part and be connected with interior pjncture needle, be provided with spacing unit in the cavity, spacing unit with launch the part and connect, be provided with the starting component on the handle, the starting component with spacing unit cooperation.
By adopting the technical scheme, the inner puncture needle is connected in the outer puncture needle in a sliding manner, the inner puncture needle is connected with the ejection device, the outer puncture needle is used for probing the pathological sample, when the probing path reaches a sampling area, the ejection device is started to eject the inner puncture needle, the inner puncture needle is inserted into the tissue by using elasticity to obtain the sample, the negative pressure connector at the tail end of the inner puncture needle is connected with the negative pressure device, suction is generated on the needle channel of the inner puncture needle, and the sample is guaranteed not to drop when being taken out.
Furthermore, the ejection component comprises a support plate, a first spring is arranged on the support plate, the first spring is connected with a fixed plate, the fixed plate is fixedly connected to the inner puncture needle, the limiting component comprises a rocker, the rocker is hinged to the inner wall of the cavity through a rotating shaft, one end of the rocker is matched with the fixed plate, a compression spring is arranged at one end, close to the fixed plate, of the rocker, one end of the compression spring is fixedly connected to the inner wall of the cavity, an annular groove is formed in the side wall of the cavity, the starting component comprises a button, a through hole is formed in the handle, the button is slidably connected into the through hole, an annular groove is formed in the side wall of the through hole, a third spring is arranged in the annular groove, one end of the third spring is fixed to the inner wall of the annular groove, and the other end of the third spring is fixedly connected to the button, the through hole is positioned at one end of the rocker plate far away from the fixed plate.
Adopt above-mentioned preferred technical scheme, can utilize the elasticity of first spring to pop out fixed plate and interior pjncture needle after pulling back interior pjncture needle, and the fixed plate stops in the stopping plate department after popping out, and the wane is used for restricting the fixed plate, be provided with the second spring on the one side that the wane deviates from the fixed plate, the elasticity of second spring makes the wane to push down the fixed plate, and when the button was pressed, the one end that the fixed plate was kept away from to the wane was received the pressure and is pushed down, because the wane middle part articulates there is the pivot to form the lever, and the one end that the fixed plate was kept away from to the wane is pushed down and is made the fixed plate break away from the restriction of wane, reaches the effect that the pjncture needle was jettised in the start.
Preferably, the blocking component comprises an annular blocking plate, and a groove is formed in the annular blocking plate.
Preferably, a cushion is disposed within the recess.
Adopt above-mentioned preferred technical scheme, through be provided with the blotter in the recess, can utilize the blotter to stop the fixed plate including the pjncture needle ejection back, can avoid interior pjncture needle to pop out and receive resilience when blockking, reduce the effect of sample.
Preferably, the inner puncture needle is provided with a handle, and the handle is positioned on the inner puncture needle outside the handle.
By adopting the preferable technical scheme, the grip is arranged at the position, close to the negative pressure connector, on the inner puncture needle, so that the inner puncture needle can be pulled to reset after the inner puncture needle is ejected.
Preferably, the front needle path of the inner puncture needle is a spiral needle path.
By adopting the preferable technical scheme, the front needle channel of the inner puncture needle is a spiral needle channel, so that when sampling is carried out, the spiral needle channel and the obtained cell tissue have enough relative acting force, and the cell tissue is easier to be smoothly taken out.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. through sliding connection have interior pjncture needle in outer pjncture needle, interior pjncture needle connection jettison device can use outer pjncture needle route of exploring when pathology sample is taken, and when exploring way to the sample area, start jettison device pops out interior pjncture needle, utilizes elasticity to insert interior pjncture needle tissue and gain the sample, and the negative pressure connector and the negative pressure device of interior pjncture needle tail end are connected, produce suction to the needle track of interior pjncture needle, guarantee not drop when taking out the sample.
2. Can utilize the elasticity of first spring to pop out fixed plate and interior pjncture needle after pulling back interior pjncture needle, and the fixed plate pops out the back and stops in the stopping plate department, and the wane is used for restricting the fixed plate, be provided with the second spring in the one side that the wane deviates from the fixed plate, the elasticity of second spring makes the wane to push down the fixed plate, and when the button was pressed, the one end that the fixed plate was kept away from to the wane was received pressure and is pushed down, because the wane middle part articulates there is the pivot to form the lever, and the one end that the fixed plate was kept away from to the wane is pushed down and can be made the fixed plate break away from the restriction of wane, reaches the effect that the pjncture needle was jettised in the start.
3. Through be provided with the blotter in the recess, can utilize the blotter to stop the fixed plate after interior pjncture needle launches, kick-backs when can avoiding interior pjncture needle to receive after popping out and block, reduce the effect of sample.
4. The front needle channel of the inner puncture needle is a spiral needle channel, so that when sampling is carried out, the spiral needle channel and the obtained cell tissue have enough relative acting force, and the cell tissue is easier to take out smoothly.
Drawings
The invention will now be described, by way of example, with reference to the accompanying drawings, in which:
FIG. 1 is a schematic cross-sectional result of the present invention;
FIG. 2 is an enlarged view of part A;
FIG. 3 is a partial cross-sectional view of the inner lancet.
Reference numerals: 1-handle, 2-external puncture needle, 3-internal puncture needle, 4-handle, 5-negative pressure connector, 6-support plate, 7-first spring, 8-fixing plate, 9-blocking plate, 10-buffer pad, 11-wane, 12-rotating shaft, 13-button, 14-third spring, 15-ring groove and 16-second spring.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all the embodiments. The components of embodiments of the present application, generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present application without making any creative effort, shall fall within the protection scope of the present application.
In the description of the embodiments of the present application, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are usually placed in when used, and are only used for convenience of description and simplicity of description, but do not indicate or imply that the devices or elements that are referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
The present invention will be described in detail with reference to fig. 1 to 3.
Example 1:
as shown in fig. 1, an ultrasonic endoscope puncture needle, including handle 1, be provided with the cavity in the handle 1, handle 1 serves fixed outer puncture needle 2 that is provided with, outer puncture needle 2 sliding connection has interior pjncture needle 3, interior pjncture needle 3 passes the cavity and is connected with negative pressure connector 5, be provided with ejection part and block part in the cavity, block part position in the place ahead of ejecting the part advancing direction, ejection part is connected with interior pjncture needle 3, be provided with spacing part in the cavity, spacing part with the ejection part is connected, be provided with the starting member on the handle, the starting member with spacing part cooperation.
Further, as shown in fig. 2, the ejection member includes a support plate 6, a first spring 7 is disposed on the support plate 6, the first spring 7 is connected to a fixing plate 8, the fixing plate 8 is fixedly connected to the internal puncture needle 3, the limiting member includes a rocker 11, the rocker 11 is hinged to the inner wall of the cavity through a rotating shaft 12, one end of the rocker 11 is matched with the fixing plate 8, a compression spring 16 is disposed at one end of the rocker 11 close to the fixing plate 8, one end of the compression spring 16 is fixedly connected to the inner wall of the cavity, an annular groove 15 is disposed on the side wall of the cavity, the starting member includes a button 13, a through hole is disposed on the handle 1, the button 13 is slidably connected in the through hole, an annular groove 15 is disposed on the side wall of the through hole, a third spring 14 is disposed in the annular groove 15, one end of the third spring 14 is fixed to the inner wall of the annular groove 15, the other end of the third spring 14 is fixedly connected to the button 13, and the through hole is located at one end of the rocker 11 far away from the fixed plate 8.
Further, the blocking component comprises an annular blocking plate 9, and a groove is formed in the annular blocking plate 9.
Further, a cushion pad 10 is disposed in the groove.
Further, a handle 4 is arranged on the inner puncture needle 3, and the handle 4 is positioned on the inner puncture needle 3 outside the handle.
Further, as shown in fig. 3, the front end needle track of the inner puncture needle 3 is a spiral needle track.
When in use:
1. firstly, connecting a negative pressure connector 5 with a negative pressure device of a hospital;
2. the outer puncture needle 2 is inserted to the vicinity of the target area by observing the ultrasonic endoscope, and the distance between the needle head of the outer puncture needle 2 and the target area is judged and adjusted.
3. Pressing the button 13, pressing down the end of the rocker 11 far from the fixed plate 8 under pressure, forming a lever by hinging a rotating shaft 12 in the middle of the rocker 11, pressing down the end of the rocker 11 far from the fixed plate 8 to enable the other end of the rocker 11 to ascend, enabling the fixed plate 8 to be separated from the limitation of a hook on the rocker 11, popping up the inner puncture needle 3 under the action of the first spring 7, inserting the needle head of the inner puncture needle 3 into a target area after popping up, enabling tissues in the target area to enter a spiral needle channel 31 of the inner puncture needle 3, stopping under the action of the barrier 9 and the cushion pad 10 after the inner puncture needle 3 is popped up, opening a negative pressure device, and providing suction; after pressing, the button 13 is reset under the elastic force of the third spring 14;
4. the device is taken out, the specimen is taken down, and then the inner puncture needle 3 is reset by pulling the grip 4.
The above-mentioned embodiments only express the specific embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for those skilled in the art, without departing from the technical idea of the present application, several changes and modifications can be made, which are all within the protection scope of the present application.

Claims (6)

1. The utility model provides an supersound scope pjncture needle, a serial communication port, includes handle (1), be provided with the cavity in handle (1), one of handle (1) is served fixedly and is provided with outer puncture needle (2), outer puncture needle (2) sliding connection has interior pjncture needle (3), interior pjncture needle (3) pass the cavity and are connected with negative pressure connector (5), be provided with in the cavity and launch the part and block the part, it is located the place ahead of launching the part advancing direction to block the part, launch the part and be connected with interior pjncture needle (3), be provided with spacing part in the cavity, spacing part with launch the part and connect, be provided with the starting component on the handle, the starting component with spacing part cooperation.
2. The ultrasonic endoscope puncture needle according to claim 1, wherein the ejection member comprises a support plate (6), a first spring (7) is arranged on the support plate (6), the first spring (7) is connected with a fixing plate (8), the fixing plate (8) is fixedly connected to the inner puncture needle (3), the limiting member comprises a rocker (11), the rocker (11) is hinged to the inner wall of the cavity through a rotating shaft (12), one end of the rocker (11) is matched with the fixing plate (8), a compression spring (16) is arranged at one end of the rocker (11) close to the fixing plate (8), one end of the compression spring (16) is fixedly connected to the inner wall of the cavity, an annular groove (15) is arranged on the side wall of the cavity, the starting member comprises a button (13), and a through hole is arranged on the handle (1), button (13) sliding connection is in the through-hole, be provided with ring channel (15) on the lateral wall of through-hole, be provided with third spring (14) in ring channel (15), the one end of third spring (14) is fixed in on the inner wall of ring channel (15), the other end fixed connection of third spring (14) is on button (13), the through-hole is located wane (11) and keeps away from the one end department of fixed plate (8).
3. An endoultrasound needle according to claim 1, characterised in that said blocking means comprise an annular blocking plate (9), said annular blocking plate (9) being provided with a recess.
4. An endoultrasound needle according to claim 3, characterised in that a cushion (10) is provided in the recess.
5. An ultrasonic endoscope puncture needle according to claim 1, characterized in that a grip (4) is arranged on the inner puncture needle (3), and the grip (4) is positioned on the inner puncture needle (3) outside the handle.
6. An endoultrasound needle according to claim 1, characterised in that the front needle track of the endoultrasound needle (3) is a spiral needle track.
CN202111621566.2A 2021-12-28 2021-12-28 Ultrasonic endoscope puncture needle Withdrawn CN114391929A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111621566.2A CN114391929A (en) 2021-12-28 2021-12-28 Ultrasonic endoscope puncture needle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111621566.2A CN114391929A (en) 2021-12-28 2021-12-28 Ultrasonic endoscope puncture needle

Publications (1)

Publication Number Publication Date
CN114391929A true CN114391929A (en) 2022-04-26

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CN202111621566.2A Withdrawn CN114391929A (en) 2021-12-28 2021-12-28 Ultrasonic endoscope puncture needle

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117796855A (en) * 2023-12-29 2024-04-02 苏州大学附属第二医院 Multi-angle biopsy sampling device for breast tumor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117796855A (en) * 2023-12-29 2024-04-02 苏州大学附属第二医院 Multi-angle biopsy sampling device for breast tumor
CN117796855B (en) * 2023-12-29 2024-06-18 苏州大学附属第二医院 A multi-angle biopsy sampling device for breast tumors

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Application publication date: 20220426