CN113017801A - Buoy for puncture needle - Google Patents
Buoy for puncture needle Download PDFInfo
- Publication number
- CN113017801A CN113017801A CN202110350563.3A CN202110350563A CN113017801A CN 113017801 A CN113017801 A CN 113017801A CN 202110350563 A CN202110350563 A CN 202110350563A CN 113017801 A CN113017801 A CN 113017801A
- Authority
- CN
- China
- Prior art keywords
- puncture needle
- buoy
- opening
- pressing
- float
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000004308 accommodation Effects 0.000 claims 1
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000001574 biopsy Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000013188 needle biopsy Methods 0.000 description 1
- 238000010827 pathological analysis Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- 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—Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; 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
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3403—Needle locating or guiding means
- A61B2017/3405—Needle locating or guiding means using mechanical guide means
Landscapes
- 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 discloses a buoy for a puncture needle, which comprises a body part and a pressing part, wherein the pressing part is arranged on the body part, the body part is provided with a diameter-variable accommodating cavity, and the accommodating cavity is used for clamping the puncture needle. According to the technical scheme of the invention, when the puncture needle is assembled, the inner diameter of the accommodating cavity in the body part is adjusted by pressing the pressing part, when the inner diameter of the accommodating cavity is larger than the outer diameter of the puncture needle, the puncture needle is placed in the accommodating cavity, then the pressing part is stopped being pressed, and the puncture needle is clamped by the buoy, so that the assembly is completed; when the buoy position needs to be adjusted, the inner diameter of the accommodating cavity is adjusted through the pressing part, so that the inner diameter of the accommodating cavity is larger than the outer diameter of the puncture needle, then the buoy is moved, and when the buoy reaches the target position, the pressing part is stopped being pressed, so that the puncture needle is clamped by the buoy.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a buoy for a puncture needle.
Background
Needle biopsy is the primary way to obtain a pathological diagnosis. In the puncture biopsy, a buoy of a puncture needle is used for marking a position on the puncture needle so as to calibrate or assist in judging the puncture depth. However, the puncture needle is usually ejected in less than one thousandth of a second, and the puncture needle stops instantly after the puncture stroke is completed, so that the buoy is subjected to large inertia, and therefore, the buoy generates large displacement every time the puncture is completed, and needs to be calibrated again. Therefore, the reliability and practicability of the buoy are greatly weakened, and many doctors do not use the buoy due to distrust during the puncture surgery.
The prior buoy device is generally in a ring shape and mainly comprises a plastic ring structure buoy and a torsion spring structure buoy. The plastic ring structure buoy is sleeved on the puncture needle through the self friction force and can slide easily, but the positioning effect is very poor. The torsion spring structure buoy is sleeved on the puncture needle, and the inner diameter is changed when the torsion spring is pressed or loosened so as to realize locking or unlocking relative to the puncture. The torsion spring structure buoy has a good marking effect relative to the plastic ring structure buoy, is not easy to move relatively, but still cannot meet the marking requirement, and the buoy position still needs to be readjusted after each puncture.
In addition, the two buoys are required to be sleeved from the needle tip during installation, so that the use is inconvenient, and when a doctor uses the buoy, if the sterile gloves are punctured or scratched by the needle tip of the puncture needle, the sterile environment of the puncture needle can be damaged. In addition, although the annular buoy can be provided with a larger interference to reduce the displacement of the buoy during puncture, the displacement of the buoy during adjustment is also difficult, and the requirements of the operation cannot be met.
Disclosure of Invention
In view of the above, the present invention provides a float for a puncture needle, wherein the inner diameter of the accommodating cavity in the main body is adjusted by the pressing part so that the puncture needle is clamped in the accommodating cavity, and when the position of the float needs to be adjusted, the inner diameter of the accommodating cavity is adjusted by the pressing part so that the float is moved.
In order to achieve the above object, according to one aspect of the present invention, there is provided a float for a puncture needle, including a body portion and a pressing portion, the pressing portion being disposed on the body portion, the body portion having a diameter-variable receiving cavity for holding the puncture needle.
Optionally, the body portion is a hollow elastic body, and an opening is provided in the elastic body in the axial direction.
Optionally, the opening is communicated with the accommodating cavity, the opening has two states of opening and closing, and the closing, opening and opening sizes of the opening are adjusted through the pressing part, so that the radial size of the accommodating cavity is adjusted; when the opening is in a closed state, the accommodating chamber has a minimum radial dimension which is not greater than the outer diameter of the puncture needle.
Optionally, the elastomer is a hollow cylindrical or mesa structure.
Optionally, the inner wall of the elastic body forms a containing cavity, and the inner wall of the elastic body is smooth.
Optionally, the pressing portion includes two pressing components, and the two pressing components are integrally formed on the body portion.
Optionally, the two pressing assemblies are respectively located at two sides of the opening, and are symmetrically arranged with the accommodating cavity as an axis.
Optionally, the pressing member is of an annular or plate-like structure.
According to the technical scheme of the invention, when the puncture needle is assembled, the inner diameter of the accommodating cavity in the body part is adjusted by pressing the pressing part, when the inner diameter of the accommodating cavity is larger than the outer diameter of the puncture needle, the puncture needle is placed in the accommodating cavity, then the pressing part is stopped being pressed, and the puncture needle is clamped by the buoy, so that the assembly is completed; when the buoy position needs to be adjusted, the inner diameter of the accommodating cavity is adjusted through the pressing part, so that the inner diameter of the accommodating cavity is larger than the outer diameter of the puncture needle, then the buoy is moved, and when the buoy reaches the target position, the pressing part is stopped being pressed, so that the puncture needle is clamped by the buoy.
Drawings
For purposes of illustration and not limitation, the present invention will now be described in accordance with its preferred embodiments, particularly with reference to the accompanying drawings, in which:
fig. 1 is a schematic structural view of a float for a puncture needle according to the present invention in a closed state.
Fig. 2 is a schematic structural view of a float for a puncture needle according to the present invention in an open state.
Fig. 3 is a schematic structural view showing that the float for the puncture needle provided by the present invention is assembled on the puncture needle.
Description of the reference numerals
1-body part, 11-containing cavity, 12-opening, 2-pressing component and 3-puncture needle.
Detailed Description
Exemplary embodiments of the present invention are described below with reference to the accompanying drawings, in which various details of embodiments of the invention are included to assist understanding, and which are to be considered as merely exemplary. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the invention. Also, descriptions of well-known functions and constructions are omitted in the following description for clarity and conciseness.
As shown in fig. 1 to 3, the float for a puncture needle according to the embodiment of the present invention includes a main body 1 and a pressing portion, the pressing portion is disposed on the main body 1, the main body 1 has a variable diameter accommodating chamber 11, and the accommodating chamber 11 is used for holding the puncture needle 3. The inner diameter of the receiving chamber 11 can be adjusted by the pressing portion, so that the float can be used to hold puncture needles 3 of different diameters. When the buoy is assembled with the puncture needle 3, the inner diameter of the accommodating cavity 11 in the body part 1 is adjusted by pressing the pressing part, when the inner diameter of the accommodating cavity 11 is larger than the outer diameter of the puncture needle 3, the puncture needle 3 is placed in the accommodating cavity 11, then the pressing part is stopped being pressed, and the puncture needle 3 is clamped by the buoy, so that the assembly is completed; when the buoy position needs to be adjusted, the inner diameter of the accommodating cavity 11 is adjusted through the pressing part, so that the inner diameter of the accommodating cavity 11 is larger than the outer diameter of the puncture needle 3, then the buoy is moved, and when the buoy reaches the target position, the pressing part is stopped being pressed, so that the puncture needle 3 is clamped by the buoy. The cross-section of the receiving cavity 11 may be circular or multi-variable.
The main body 1 is a hollow elastic body, and an opening 12 is provided in the elastic body in the axial direction. The opening 12 is communicated with the accommodating cavity 11, the opening 12 has an opening state and a closing state, and the closing, opening and opening sizes of the opening 12 are adjusted through the pressing part, so that the radial size of the accommodating cavity 11 is adjusted; when the opening 12 is in the closed state, the accommodating chamber 11 has a minimum radial dimension, and the minimum radial dimension of the accommodating chamber 11 is not larger than the outer diameter of the puncture needle 3. When the minimum radial dimension of the accommodating cavity 11 is smaller than the outer diameter of the puncture needle 3, when the puncture needle 3 is clamped on the buoy, the elastic body deforms, the opening 12 is in an opening state, and the larger the outer diameter of the puncture thick needle is, the larger the radial dimension of the accommodating cavity 11 is, the larger the deformation of the elastic body is, and the larger the opening dimension of the opening 12 is. When the minimum radial dimension of the housing 11 is equal to the outer diameter of the puncture needle 3, the opening 12 is in a closed state when the puncture needle 3 is held on the float.
The elastic body is a hollow columnar or table-shaped structure. For example, the elastic body may have a hollow cylindrical, prismatic, truncated cone, or truncated pyramid structure.
The inner wall of the elastic body forms an accommodating cavity 11, the inner wall of the elastic body is smooth, the inner wall of the elastic body can be tightly attached to the surface of the puncture needle 3, sufficient friction force is provided for the puncture needle 3 through atmospheric pressure, and the friction force between the puncture needle 3 and the elastic body is enough to overcome the inertia of the puncture needle 3 generated in the puncture process, so that the buoy is not easy to displace in the puncture process; when the buoy needs to be moved to other positions, the inner diameter of the accommodating cavity 11 is larger than the outer diameter of the puncture needle 3 through the pressing part, and the friction force between the puncture needle 3 and the elastic body is small due to the smooth inner wall of the elastic body, so that the buoy is favorably moved to a target position.
The pressing part comprises two pressing components 2, and the two pressing components 2 are integrally formed on the body part 1. The two pressing components 2 are respectively positioned at two sides of the opening 12 and are symmetrically arranged by taking the accommodating cavity 11 as an axis. The pressing member 2 has a ring-shaped or plate-shaped structure.
The above-described embodiments should not be construed as limiting the scope of the invention. Those skilled in the art will appreciate that various modifications, combinations, sub-combinations, and substitutions can occur, depending on design requirements and other factors. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The buoy for the puncture needle is characterized by comprising a body part and a pressing part, wherein the pressing part is arranged on the body part, the body part is provided with a containing cavity with a variable diameter, and the containing cavity is used for clamping the puncture needle.
2. The float for a puncture needle according to claim 1, wherein the body portion is a hollow elastic body, and an opening is provided in the elastic body in an axial direction.
3. The float for puncture needle according to claim 2, wherein the opening communicates with the accommodating chamber, the opening has two states of open and closed, and the radial size of the accommodating chamber is adjusted by adjusting the sizes of the opening, the opening and the closing by the pressing portion;
when the opening is in a closed state, the accommodating cavity has a minimum radial dimension, and the minimum radial dimension of the accommodating cavity is not larger than the outer diameter of the puncture needle.
4. The float for a puncture needle according to claim 2, wherein the elastic body is a hollow cylindrical or mesa structure.
5. The float for a puncture needle according to claim 2, wherein the inner wall of the elastic body forms the accommodation chamber and the inner wall of the elastic body is smooth.
6. The float for a puncture needle according to claim 1, wherein the pressing portion includes two pressing members integrally formed on the body portion.
7. The float for a puncture needle according to claim 6, wherein the two pressing members are located on both sides of the opening, respectively, and are symmetrically arranged with respect to the accommodating chamber.
8. The float for a puncture needle of claim 6, wherein the pressing assembly is of an annular or plate-like configuration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110350563.3A CN113017801A (en) | 2021-03-31 | 2021-03-31 | Buoy for puncture needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110350563.3A CN113017801A (en) | 2021-03-31 | 2021-03-31 | Buoy for puncture needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113017801A true CN113017801A (en) | 2021-06-25 |
Family
ID=76453319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110350563.3A Pending CN113017801A (en) | 2021-03-31 | 2021-03-31 | Buoy for puncture needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113017801A (en) |
-
2021
- 2021-03-31 CN CN202110350563.3A patent/CN113017801A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3025668B1 (en) | Tool holding articulated arm | |
| US8911143B2 (en) | Switch device | |
| JP4737453B2 (en) | Fluid pressure cylinder | |
| JP5393491B2 (en) | Ultrasound endoscope puncture needle device | |
| US9066754B2 (en) | Trocar and cannula assembly having improved conical valve, and methods related thereto | |
| WO2016114248A1 (en) | Force sensor unit | |
| WO2018222950A1 (en) | Diaphragm and stethoscope head assembly thereof | |
| JP2008164164A (en) | Retaining ring to be used for fluid pressure cylinder | |
| CN214857272U (en) | Buoy for puncture needle | |
| CN113017801A (en) | Buoy for puncture needle | |
| CN112673201A (en) | Valve with a valve body | |
| JP6403071B2 (en) | Fluid pressure cylinder | |
| CN109915678B (en) | Ventilating joint for fast clamping threaded air tap | |
| WO2017126565A1 (en) | Cannula | |
| US11879592B2 (en) | Gas pressure vessel | |
| US10981269B2 (en) | Ancillary handle and surgical instrumentation set comprising such an ancillary handle | |
| CA2648760A1 (en) | Shank attachment structure | |
| JP7135198B2 (en) | Hemostasis valve device and guiding sheath | |
| JP6403073B2 (en) | Fluid pressure cylinder | |
| US8827056B2 (en) | Damper device | |
| US20200062022A1 (en) | Writing instrument holder and writing instrument holder set | |
| WO2018181043A1 (en) | Damper device | |
| JP5583527B2 (en) | Button type fistula tube | |
| CN107743553B (en) | Fluid pressure cylinder | |
| CN214712611U (en) | Buoy for puncture needle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |