CN111671504A - Multifunctional trocar for distributed particle implantation and biopsy - Google Patents
Multifunctional trocar for distributed particle implantation and biopsy Download PDFInfo
- Publication number
- CN111671504A CN111671504A CN202010656564.6A CN202010656564A CN111671504A CN 111671504 A CN111671504 A CN 111671504A CN 202010656564 A CN202010656564 A CN 202010656564A CN 111671504 A CN111671504 A CN 111671504A
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- Prior art keywords
- needle
- particle implantation
- sheath
- biopsy
- trocar
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- 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
- A61B17/3468—Trocars; Puncturing needles for implanting or removing devices, e.g. prostheses, implants, seeds, wires
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- 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
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
- A61N5/1001—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy using radiation sources introduced into or applied onto the body; brachytherapy
- A61N5/1007—Arrangements or means for the introduction of sources into the body
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
- A61N5/1001—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy using radiation sources introduced into or applied onto the body; brachytherapy
- A61N5/1007—Arrangements or means for the introduction of sources into the body
- A61N2005/1009—Apparatus for loading seeds into magazines or needles
Abstract
The invention discloses a multifunctional trocar for distributed particle implantation and biopsy, which is characterized by comprising: the side wall of the sheath tube is provided with a plurality of side holes which are distributed in a single spiral shape, and the end part of the sheath tube is provided with an end hole; the sleeve is arranged in the sheath in a sliding manner; the needle core is arranged in the sheath tube and penetrates out of the side hole or the end hole, the needle core comprises a particle implantation needle and a biopsy needle, the particle implantation needle penetrates into the sleeve, and the sharp end of the particle implantation needle is bent. According to the invention, the side holes are formed in the sheath tube, and the needle tip of the particle implantation needle is bent, so that the particle implantation needle can penetrate out through the side holes; and the biopsy needle can penetrate out of the end hole, so that the device also has a biopsy function, and the particle implantation and biopsy operation are carried out in one interventional operation.
Description
Technical Field
The invention relates to the technical field of medical equipment, in particular to a multifunctional trocar for distributed particle implantation and biopsy.
Background
The particle implantation is called as radioactive particle implantation treatment technology, and is to implant miniature radioactive sources (particles) into the tumor or the tissues infiltrated by the tumor, including the tissues spread along the lymphatic path of malignant tumor, and to emit continuous low-energy gamma rays through radioactive particle sources, so that the tumor tissues are subjected to maximum radiation damage and destruction, and the normal tissues are not damaged or only slightly damaged, thereby achieving the purpose of treatment. The existing radioactive particle implantation needs a plurality of puncture channels for needle arrangement, needs uniform needle arrangement, is complex to operate, has large wound surface of a patient, increases the risk of bleeding, is not beneficial to the later recovery of the patient, and is difficult to insert the needle when encountering parts with bones or special organs and tissues.
In addition, prior art particle implantation is separated from biopsy procedures, which can cause greater trauma to the patient.
In view of this, there is an urgent need to improve the existing particle implantation needle, simplify the operation, accurately position, and reduce the wound surface of the patient.
Disclosure of Invention
The invention discloses a multifunctional trocar for distributed particle implantation and biopsy, which is used for solving the problems that in the prior art, the particle implantation needle is difficult to position and complex to operate and only can relate to a limited direction to cause the wound surface of a patient to be enlarged.
In order to solve the problems, the invention adopts the following technical scheme:
a multi-functional trocar for distributed particle implantation and biopsy is provided, comprising:
the side wall of the sheath tube is provided with a plurality of side holes which are distributed in a single spiral shape, and the end part of the sheath tube is provided with an end hole;
a cannula slidably disposed within the sheath;
the needle core is arranged in the sheath tube and penetrates out of the side hole or the end hole, the needle core comprises a particle implantation needle and a biopsy needle, the particle implantation needle penetrates into the sheath tube, and the needle tip of the particle implantation needle is bent.
In the above scheme, the sheath is provided with scales.
In the above scheme, the scale corresponds each the position of side opening to set up to imbed the metal block of the lateral wall of sheath pipe, sheathed tube tip is followed the lateral wall of sheathed tube is equipped with the becket, metal block and becket are visible under the X-ray.
In the above scheme, the side hole is arranged to penetrate through the particle implantation needle, the end hole is arranged to penetrate through the biopsy needle, and the particle implantation needle is made of elastic memory alloy.
In the above scheme, the projections of the side holes on the axis of the sheath are equally spaced.
In the above scheme, an included angle between the opening direction of at least one side hole and the side wall of the sheath tube is an acute angle and/or the opening direction of at least one side hole is perpendicular to the side wall of the sheath tube.
In the above scheme, the opening direction of the side hole is perpendicular to the side wall of the sheath tube.
In the above scheme, the number of the side holes is 13, wherein the seventh side hole along the direction of the end hole is perpendicular to the side wall of the sheath, the included angle between the side holes at the two sides of the side hole and the side wall of the sheath decreases gradually one by one with an arithmetic progression with a tolerance of-10, and the included angle is towards the two ends of the sheath.
In the above aspect, the biopsy needle is linear and is disposed coaxially with the sheath.
In the above scheme, the side hole is provided with a chamfer at the inner wall of the sheath tube.
The technical scheme adopted by the invention can achieve the following beneficial effects:
the sheath is provided with the side holes, the needle tip of the particle implantation needle is bent, so that the particle implantation needle can penetrate out through the side holes, and the side holes are distributed in a single spiral shape, so that the selection of each side hole can be uniquely determined by the insertion position, the particle implantation is accurate and easy to operate, the accurate control of the implantation direction and angle is realized, the secondary puncture is not needed, the operation is simplified, and the wound surface of a patient is reduced; and the biopsy needle can penetrate out of the end hole, so that the device also has a biopsy function, and the particle implantation and biopsy operation are carried out in one interventional operation.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below to form a part of the present invention, and the exemplary embodiments and the description thereof illustrate the present invention and do not constitute a limitation of the present invention. In the drawings:
FIG. 1 is a perspective view of a sheath disclosed in an embodiment of the present invention;
FIG. 2 is a front view of a sheath disclosed in an embodiment of the present invention;
FIG. 3 is a cross-sectional view A-A of FIG. 2;
FIG. 4 is a schematic structural diagram of a side hole disclosed in the embodiment of the present invention;
FIG. 5 is a schematic view of the entire structure of the penetration hole of the particle implantation needle disclosed in embodiment 1 of the present invention;
FIG. 6 is a schematic view of the overall structure of the exit end hole of the biopsy needle disclosed in embodiment 2 of the present invention;
FIG. 7 is a schematic view of the entire structure of the penetration hole of the particle implantation needle disclosed in embodiment 3 of the present invention;
fig. 8 is a schematic diagram of an application of embodiment 3 of the present invention.
Including the following reference numerals:
sheath-10; a sleeve-20; a needle core-30; a side hole-11; end hole-12; metal block-13; a metal ring-21.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
As shown in figures 1-5, the trocar for implantation of a seed of the present invention comprises:
the side surface of the sheath tube 10 is provided with a plurality of side holes 11, the side holes 11 are distributed in a single spiral shape, and one end of the sheath tube 10 is provided with an end hole 12; the sleeve 20 is arranged in the sheath tube 10 in a sliding manner; the needle tip of the particle implantation needle 30 is bent for penetrating into the cannula 20 and out of the side hole 11. The side holes 11 are formed in the sheath tube 10, so that the sharp ends of the bent particle implantation needles 30 can penetrate out through the side holes 11, and the side holes 11 are distributed in a single spiral shape, so that the selection of each side hole 11 can be uniquely determined by the insertion position, the particles are implanted accurately and conveniently, the particles are implanted in multiple directions, secondary puncture is not needed, the operation is simplified, and the wound surface of a patient is reduced.
The sheath 10 is provided with graduations. The scales correspond to the positions of the side holes 11 and are arranged as metal blocks 13 fixed on the inner wall of the sheath tube 10, the end part of the sleeve 20 is provided with a surrounding metal ring 21 along the outer side wall of the sleeve 20, and the metal blocks 13 and the metal ring 21 generate shadows when irradiated by X-rays. In particular, in use, the position of the sleeve 20 is determined by the shadow of the X-ray, which, when the shadow of the metal ring 21 coincides with the shadow of a certain metal block 13, proves that the sleeve 20 is at the edge of the lateral hole 11 there. It is convenient to control the penetration length of the cannula 20.
The projections of the side holes 11 on the axis of the sheath 10 are equally spaced. That is, the distance between each side hole 11 in the length direction of the sheath tube 10 is equal, and in this embodiment, 13 side holes 11 are provided, which are 720 ° in total around the sheath tube 10, and when the sheath tube 10 is placed vertically to the ground, the projection angle of the intersection between the axis of each two adjacent side holes 11 and the axis of the sheath tube 10 is 60 °. The side holes 11 are uniformly distributed.
The opening direction of the at least one side hole 11 forms an acute angle with the side wall of the sheath 10 and/or the opening direction of the at least one side hole 11 is perpendicular to the side wall of the sheath 10. In the present embodiment, the opening directions of the side holes 11 are all perpendicular to the side wall of the sheath tube 10.
One end of the needle tip of the particle implanting needle 30 is curved and made of an elastic memory alloy. Can be inserted into the linear sleeve 20 and exit through the side hole 11.
The side hole 11 is chamfered at the inner wall of the sheath tube 10. Which is equivalent to increase the inner aperture of the side hole to facilitate the extension of the particle implantation needle 30.
In this example, the specific application method of the present invention is as follows:
sleeving the particle implantation needle 30 into the sleeve 20, sending the sleeve 20 to a position in which a specific particle implantation direction is selected in advance, if a No. 3 side hole is selected, sending the sleeve 20 to a position close to the No. 3 side hole 11 through X-ray, then keeping the position of the particle implantation needle 30, withdrawing the sleeve 20, bending the particle implantation needle 30 to the side wall of the sheath 10 under the action of bending elasticity, keeping the insertion depth, rotating for a certain angle, enabling the tip of the particle implantation needle 30 to automatically fall into the chamfer area of the No. 3 side hole, further pushing the particle implantation needle 30, enabling the particle implantation needle to penetrate out of the No. 3 side hole, and executing particle implantation injection operation. And multiple injections may be performed without pulling out the sheath 10, including simultaneous injection of multiple particle implantation needles 30 or multiple injections of a single particle implantation needle 30.
Example 2
As shown in fig. 6, unlike embodiment 1, in this embodiment, the particle implantation needle 30 is replaced with a biopsy needle 31, and the biopsy needle 31 is passed out from the end hole 12 to perform a biopsy operation.
The biopsy needle 31 is linear and can conveniently penetrate out of the end hole 12, when the biopsy needle is used, the biopsy needle 31 and the sheath tube 10 are coaxially arranged, the biopsy needle 31 is conveniently positioned, the sleeve 20 is not needed, and the operation is convenient. The invention also has biopsy function and enhanced functionality.
Example 3
As shown in fig. 7, unlike embodiment 1, in this embodiment, the opening direction of each side hole 11 is different, the seventh side hole 11 is perpendicular to the side wall of the sheath tube 10 along the direction of the end hole 12, the included angle between the opening direction of the side holes 11 at both sides and the side wall of the sheath tube 10 decreases from the middle position to both sides, and the acute angle direction points to both ends of the sheath tube 10, and in a preferred embodiment, the included angle between the opening direction of the side holes 11 and the side wall of the sheath tube 10 has an arithmetic progression with a tolerance of-10 from the middle position to both ends.
As shown in FIG. 8, this embodiment can control the direction of penetration of the particle implantation needle 30 into the tumor tissue more precisely. Due to the great improvement of the flexibility, when the region needing to be avoided such as bones, blood vessels, nerves and the like is met, the region can be avoided by utilizing the change of the needle outlet angle.
According to the invention, the side holes are arranged on the sheath tube, the needle tip end of the particle implantation needle is bent, so that the particle implantation needle can penetrate out through the side holes, and the side holes are distributed in a single spiral shape, so that the selection of each side hole can be uniquely determined by the insertion position, the particle implantation is accurate, the multi-direction implantation is realized, the secondary puncture is not needed, the operation is simplified, the wound surface of a patient is reduced, the biopsy needle can penetrate out from the end hole, the device also has a biopsy function, and the functionality of the device is enhanced.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. A multi-functional trocar for distributed particle implantation and biopsy, comprising:
the side wall of the sheath tube is provided with a plurality of side holes which are distributed in a single spiral shape, and the end part of the sheath tube is provided with an end hole;
a cannula slidably disposed within the sheath;
the needle core is arranged in the sheath tube and penetrates out of the side hole or the end hole, the needle core comprises a particle implantation needle and a biopsy needle, the particle implantation needle penetrates into the sheath tube, and the needle tip of the particle implantation needle is bent.
2. The multi-functional trocar for distributed particle implantation and biopsy of claim 1, wherein a scale is provided on the sheath.
3. The multi-functional trocar for distributed particle implantation and biopsy according to claim 2, wherein the graduations correspond to the location of each of the side holes and are provided as metal blocks embedded in the side wall of the sheath, the end of the cannula being provided with a surrounding metal ring along the outer side wall of the cannula, the metal blocks and metal rings being visible under X-rays.
4. The multi-functional trocar for distributed particle implantation and biopsy according to claim 1, wherein the side hole is configured to pass through the particle implantation needle, the end hole is configured to pass through the biopsy needle, and the particle implantation needle is made of an elastic memory alloy.
5. The multi-functional trocar for distributed particle implantation and biopsy according to any one of claims 1-4, wherein projections of the side holes on the axis of the sheath are equally spaced.
6. The multi-functional trocar for distributed particle implantation and biopsy according to any one of claims 1-4, wherein an opening direction of at least one of the side holes is at an acute angle to a side wall of the sheath and/or an opening direction of at least one of the side holes is perpendicular to the side wall of the sheath.
7. The multi-functional trocar for distributed particle implantation and biopsy according to any one of claims 1-4, wherein the directions of the openings of the side holes are both perpendicular to the side wall of the sheath.
8. The multi-functional trocar for distributed particle implantation and biopsy according to any one of claims 1-4, wherein the number of the side holes is 13, wherein the seventh side hole is perpendicular to the side wall of the sheath along the direction of the end hole, and the included angles between the side holes at two sides and the side wall of the sheath are gradually decreased in an arithmetic progression with a tolerance of-10, and the included angles are directed towards two ends of the sheath.
9. The multi-functional trocar for distributed particle implantation and biopsy according to any one of claims 1-8, wherein the biopsy needle is linear and disposed coaxially with the sheath.
10. The multi-functional trocar for distributed particle implantation and biopsy according to any one of claims 1-8, wherein the side hole is chamfered at an inner wall of the sheath.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010656564.6A CN111671504B (en) | 2020-07-09 | 2020-07-09 | Multifunctional trocar for distributed particle implantation and biopsy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010656564.6A CN111671504B (en) | 2020-07-09 | 2020-07-09 | Multifunctional trocar for distributed particle implantation and biopsy |
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| Publication Number | Publication Date |
|---|---|
| CN111671504A true CN111671504A (en) | 2020-09-18 |
| CN111671504B CN111671504B (en) | 2021-05-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010656564.6A Active CN111671504B (en) | 2020-07-09 | 2020-07-09 | Multifunctional trocar for distributed particle implantation and biopsy |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022222177A1 (en) * | 2021-04-22 | 2022-10-27 | 华中科技大学 | Suction cutting type multi-point sampling needle with active deformation function |
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| WO2006063046A2 (en) * | 2004-12-07 | 2006-06-15 | Texas Instruments Incorporated | Charged particle implantation for transistor symmetry |
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| CN102770085A (en) * | 2009-08-03 | 2012-11-07 | 沙丘医疗设备有限公司 | Surgical tool |
| CN203988265U (en) * | 2014-02-07 | 2014-12-10 | 王洪武 | Scope universal trocar |
| CN205494633U (en) * | 2015-12-28 | 2016-08-24 | 王万胜 | Active particles biliary tract drainage |
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2020
- 2020-07-09 CN CN202010656564.6A patent/CN111671504B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000015274A1 (en) * | 1998-09-11 | 2000-03-23 | Tissue Science Laboratories Limited | Collagenous tissue compositions |
| WO2006063046A2 (en) * | 2004-12-07 | 2006-06-15 | Texas Instruments Incorporated | Charged particle implantation for transistor symmetry |
| WO2007056372A2 (en) * | 2005-11-04 | 2007-05-18 | Boston Scientific Scimed, Inc. | Medical devices having particle-containing regions with diamond-like coatings |
| CN102770085A (en) * | 2009-08-03 | 2012-11-07 | 沙丘医疗设备有限公司 | Surgical tool |
| CN102599878A (en) * | 2010-07-15 | 2012-07-25 | 广州宝胆医疗器械科技有限公司 | Integrative con-focal laparoscopic system for diagnosis and treatment |
| CN201734787U (en) * | 2010-07-16 | 2011-02-09 | 李玉宝 | Body ct precision positioning puncture device |
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| CN102294080A (en) * | 2011-09-30 | 2011-12-28 | 南京乐翔科技发展有限公司 | Helium-neon laser treatment device and manufacturing method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2022222177A1 (en) * | 2021-04-22 | 2022-10-27 | 华中科技大学 | Suction cutting type multi-point sampling needle with active deformation function |
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| Publication number | Publication date |
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| CN111671504B (en) | 2021-05-07 |
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