CN110575239A - locking device for particle implanter - Google Patents
locking device for particle implanter Download PDFInfo
- Publication number
- CN110575239A CN110575239A CN201910985676.3A CN201910985676A CN110575239A CN 110575239 A CN110575239 A CN 110575239A CN 201910985676 A CN201910985676 A CN 201910985676A CN 110575239 A CN110575239 A CN 110575239A
- Authority
- CN
- China
- Prior art keywords
- outer needle
- wedge
- slotted hole
- connecting rod
- connecting column
- 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
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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
- A61B17/3417—Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
- A61B17/3421—Cannulas
-
- 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
-
- 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
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B2017/347—Locking means, e.g. for locking instrument in cannula
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Surgery (AREA)
- Public Health (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Pathology (AREA)
- Veterinary Medicine (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Radiology & Medical Imaging (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
the invention discloses a locking device for a particle implanter, which relates to the technical field of medical treatment, wherein a connecting column is arranged at the tail end of an outer needle, a slotted hole is formed in the connecting column, a supporting plate and a wedge are welded and connected into a whole, one end of a spring is welded and connected with the supporting plate, the other end of the spring is welded and connected with a sleeve, and the relative position of the wedge relative to the slotted hole in the outer needle and the displacement of the wedge embedded in the slotted hole can be changed by the pulling force acting on a drag hook so as to facilitate the replacement of the outer needle. Compared with the existing threaded connection mode, the outer needle is more convenient to replace, the replacement of the outer needle can be completed through the action of lifting the draw hook, and the outer needle cannot be damaged. The invention adopts the modular design, has good interchangeability, can be suitable for locking the outer needle of the existing particle implanter, is convenient to install and position, is stable to lock, has simple structure and is beneficial to replacing the outer needle.
Description
Technical Field
The invention belongs to the technical field of medical treatment, and particularly relates to a locking device for a particle implanter.
Background
Currently, the operation of particle implantation radiotherapy is still one of effective means for treating cancer, and is a method of implanting radioactive particles into a target region of a lesion of a human body by using a particle implanter, and then destroying cancerous cells in the target region by the radioactivity of the implanted particles. With the development of science and technology, particle implanters are being improved by researchers and researchers to better ensure the therapeutic effect of patients. However, the number of implanted particles and the number of times of implanting the particles are different for the target region of the lesion in patients with different canceration degrees, so that there may be a case that the puncture needle is replaced many times during the course of the particle implantation radiotherapy operation. Therefore, a structure for locking the puncture needle needs to be designed, the puncture needle is divided into an inner needle and an outer needle, the inner needle is a solid cylindrical needle and is clamped by adopting a threaded connection mode, the outer needle is a capillary needle, the outer needle can be damaged by adopting the threaded connection mode, and the puncture needle is not convenient to replace frequently by adopting the threaded connection mode. In addition, the outer needle needs to ensure the stability of the outer needle during the operation process, and the play can not occur.
Based on the above situation, it is important to design a locking device for a particle implanter. The locking device can be used for conveniently replacing the puncture needle outer needle in the process of particle implantation radiotherapy operation so as to meet the treatment requirements of different patients. In addition, the locking device can not generate the play along the axial direction of the outer needle, so that the stability of the outer needle needs to be ensured in the operation process, and the treatment effect of a patient is further ensured.
Disclosure of Invention
In view of the above problems, the present invention provides a locking device for a particle implanter.
The invention relates to a locking device for a particle implanter, which comprises an outer needle, a connecting rod, a limiting device, a lifting device and a spring, and is characterized in that: the outer needle comprises a needle body and a connecting column, the needle body of the outer needle and the connecting column are coaxially installed and integrated, a sliding groove is formed in the connecting rod, the outer needle can linearly slide in the sliding groove of the connecting rod, a magazine groove arranged on the connecting rod can receive a particle magazine to be placed, a threaded hole C is formed in the connecting rod, the limiting device comprises a sleeve and a connecting plate, a threaded hole A is formed in the connecting plate, the limiting device is connected with the connecting rod through threads, a threaded hole B is formed in the connecting plate, the lower surface of the sleeve is parallel to the bottom surface of the connecting plate and is arranged on the upper surface of the bottom surface of the connecting plate, the sleeve is connected with the connecting plate through threads, the lifting device comprises a wedge, a rib plate, a pull rod, a pull hook and a supporting plate, the pull rod is connected with the pull hook through welding, the pull rod is connected with the, the other end is connected with the sleeve through welding.
Preferably, the connecting column is provided with a slotted hole, the position of the outer needle relative to the connecting rod is moved to the slotted hole so that the wedge iron is embedded into the slotted hole in the locking process, and the wedge iron is tightly embedded into the slotted hole due to the elastic force of the spring indirectly acting on the wedge iron, so that the connecting column is prevented from moving in the axial direction of the connecting column, and the stability of the locking outer needle is ensured.
Preferably, the outer needle is provided with a slotted hole, the support plate and the wedge are connected in a welding mode to form a whole, and the relative position of the wedge relative to the slotted hole in the outer needle and the displacement of the wedge embedded into the slotted hole can be changed through the pulling force acting on the draw hook so as to facilitate replacement of the outer needle.
The invention has the beneficial effects that:
(1) The connecting rod is provided with the chute, the needle body of the outer needle and the connecting column are coaxially arranged and integrated, the outer needle can linearly slide in the chute of the connecting rod, the outer needle can be arranged in the chute along the axis direction of the outer needle when the outer needle is arranged, and compared with the traditional outer needle arrangement mode, the outer needle arrangement mode can avoid the phenomenon of rotating around the axis direction of the outer needle when the outer needle is arranged, so that accurate positioning is realized. In addition, the connecting column is provided with a slotted hole, the position of the outer needle relative to the connecting rod is moved to the slotted hole so that the wedge iron is embedded into the slotted hole during locking, and the spring indirectly acts on the elasticity of the wedge iron, so that the wedge iron is tightly embedded into the slotted hole, the connecting column is prevented from moving along the axial direction of the connecting column, and the locking stability is ensured.
(2) The outer needle has simple structure and is convenient to replace, a connecting column is arranged at the tail end of the outer needle, a slotted hole is formed in the connecting column, a supporting plate and a wedge are welded and connected into a whole, one end of a spring is welded and connected with the supporting plate, the other end of the spring is welded and connected with a sleeve, and the relative position of the wedge relative to the slotted hole in the outer needle and the displacement of the wedge embedded into the slotted hole can be changed by the pulling force acting on a drag hook so as to replace the outer needle. Compared with the existing threaded connection mode, the outer needle is more convenient to replace, the replacement of the outer needle can be completed through the action of lifting the draw hook, and the outer needle cannot be damaged.
(3) The particle implanter has the advantages that the particle implanter adopts a modular design, has good interchangeability, and is suitable for locking an outer needle of the existing particle implanter, and a magazine groove arranged on a connecting rod can receive a particle magazine for placement.
Description of the drawings:
For ease of illustration, the invention is described in detail by the following detailed description and the accompanying drawings.
FIG. 1 is a schematic view of the overall structure of the present invention
FIG. 2 is an exploded view of the overall structure of the present invention
FIG. 3 is a schematic view of the structure of the connecting rod
FIG. 4 is a schematic view of the structure of the position limiting device
FIG. 5 is a schematic view showing the structure of a pulling apparatus
In the figure: the needle comprises an outer needle 1, a needle body 1-1, a connecting column 1-2, a slotted hole 1-3, a connecting rod 2, a sliding groove 2-1, a threaded hole 2-2C, a cartridge magazine groove 2-3, a limiting device 3-1 sleeve 3-2 connecting plates, a threaded hole 3-3A, a threaded hole 3-4B, a pulling device 4, a wedge 4-1, a ribbed plate 4-2, a pull rod 4-3, a pull hook 4-4, a supporting plate 4-5 and a spring 5.
The specific implementation mode is as follows:
In order that the objects, aspects and advantages of the invention will become more apparent, the invention will be described by way of example only, and in connection with the accompanying drawings. It is to be understood that such description is merely illustrative and not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
Example 1: as shown in fig. 1, fig. 2, fig. 3, fig. 4, and fig. 5, the following technical solutions are adopted in the specific embodiment of the present invention: a locking device for a particle implanter comprises an outer needle 1, a connecting rod 2, a limiting device 3, a lifting device 4 and a spring 5, and is characterized in that: the outer needle 1 comprises a needle body 1-1 and a connecting column 1-2, the needle body 1-1 of the outer needle 1 and the connecting column 1-2 are coaxially arranged and integrated, a chute 2-1 is arranged on the connecting rod 2, the outer needle 1 can linearly slide in the chute 2-1 of the connecting rod 2, a magazine groove 2-3 arranged on the connecting rod 2 can receive a particle magazine for placement, a threaded hole C2-2 is arranged on the connecting rod 2, a limiting device 3 comprises a sleeve 3-1 and a connecting plate 3-2, a threaded hole A3-3 is arranged on the connecting plate 3-2, the limiting device 3 is in threaded connection with the connecting rod 2, a threaded hole B3-4 is arranged on the connecting plate 3-2, the lower surface of the sleeve 3-1 is parallel to the bottom surface of the connecting plate 3-2 and is arranged on the upper surface of the bottom surface of the connecting plate 3, the sleeve 3-1 is connected with the connecting plate 3-2 through threads, the lifting device 4 comprises a wedge iron 4-1, a rib plate 4-2, a pull rod 4-3, a draw hook 4-4 and a supporting plate 4-5, the pull rod 4-3 is connected with the draw hook 4-4 through welding, the pull rod 4-3 is connected with the supporting plate 4-5 through welding, the supporting plate 4-5 is connected with the wedge iron 4-1 through welding to form a whole, one end of the spring 5 is connected with the supporting plate 4-5 through welding, and the other end of the spring is connected with the sleeve 3-1 through welding.
Furthermore, the connecting column 1-2 is provided with a slotted hole 1-3, the position of the outer needle 1 relative to the connecting rod 2 is moved to enable the wedge iron 4-1 to be embedded into the slotted hole 1-3 on the connecting column 1-2 during locking, and the spring 2 indirectly acts on the elasticity of the wedge iron 4-1, so that the wedge iron 4-1 is tightly embedded into the slotted hole 1-3, the connecting column 1-2 is prevented from moving along the axial direction of the connecting column, and the stability of the locking outer needle 1 is ensured.
furthermore, the outer needle 1 is provided with a slotted hole 1-3, the support plate 4-5 and the wedge iron 4-1 are welded and connected into a whole, and the relative position of the wedge iron 4-1 relative to the slotted hole 1-3 on the outer needle 1 and the displacement of the wedge iron 4-1 embedded into the slotted hole 1-3 can be changed by the pulling force acting on the draw hook 4-4, so that the outer needle 1 can be replaced conveniently.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (3)
1. A locking device for a particle implanter comprises an outer needle (1), a connecting rod (2), a limiting device (3), a lifting device (4) and a spring (5), and is characterized in that: the outer needle (1) comprises a needle body (1-1) and a connecting column (1-2), the needle body (1-1) of the outer needle (1) and the connecting column (1-2) are coaxially installed and integrated, a sliding groove (2-1) is formed in the connecting rod (2), the outer needle (1) can linearly slide in the sliding groove (2-1) of the connecting rod (2), a magazine groove (2-3) formed in the connecting rod (2) can receive a particle magazine for placement, a threaded hole C (2-2) is formed in the connecting rod (2), a limiting device (3) comprises a sleeve (3-1) and a connecting plate (3-2), a threaded hole A (3-3) is formed in the connecting plate (3-2), the limiting device (3) is connected with the connecting rod (2) through threads, a threaded hole B (3-4) is formed in the connecting plate (3-2), the lower surface of the sleeve (3-1) is parallel to the bottom surface of the connecting plate (3-2) and is arranged on the upper surface of the bottom surface of the connecting plate (3-2), the sleeve (3-1) is connected with the connecting plate (3-2) through threads, the lifting device (4) comprises a wedge iron (4-1), a ribbed plate (4-2) and a pull rod (4-3), the pull rod (4-3) is connected with the pull hook (4-4) in a welding mode, the pull rod (4-3) is connected with the support plate (4-5) in a welding mode, the support plate (4-5) is connected with the wedge iron (4-1) in a welding mode to form a whole, one end of the spring (5) is connected with the support plate (4-5) in a welding mode, and the other end of the spring (5) is connected with the sleeve (3-1) in a welding mode.
2. The locking device of claim 1, wherein: the connecting column (1-2) is provided with a slotted hole (1-3), the outer needle (1) is moved to the position relative to the connecting rod (2) during locking so that the wedge (4-1) is embedded into the slotted hole (1-3) on the connecting column (1-2), and the wedge (4-1) is tightly embedded into the slotted hole (1-3) due to the elastic force of the spring (2) indirectly acting on the wedge (4-1), so that the connecting column (1-2) is prevented from moving along the axial direction of the connecting column, and the stability of the outer needle (1) is ensured.
3. The locking device of claim 1, wherein: the outer needle (1) is provided with a slotted hole (1-3), the support plate (4-5) and the wedge iron (4-1) are connected in a welding mode to form a whole, and the relative position of the wedge iron (4-1) relative to the slotted hole (1-3) on the outer needle (1) and the displacement of the wedge iron (4-1) embedded into the slotted hole (1-3) can be changed through the pulling force acting on the draw hook (4-4), so that the outer needle (1) can be replaced conveniently.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910985676.3A CN110575239A (en) | 2019-10-17 | 2019-10-17 | locking device for particle implanter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910985676.3A CN110575239A (en) | 2019-10-17 | 2019-10-17 | locking device for particle implanter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110575239A true CN110575239A (en) | 2019-12-17 |
Family
ID=68815035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910985676.3A Pending CN110575239A (en) | 2019-10-17 | 2019-10-17 | locking device for particle implanter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110575239A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108310581A (en) * | 2018-03-27 | 2018-07-24 | 连俊杰 | A kind of respiratory delivery mask for lung ventilator |
| CN207913023U (en) * | 2017-08-02 | 2018-09-28 | 于江平 | The universal seeds implanted equipment of self-locking pen type |
| CN208552847U (en) * | 2017-09-12 | 2019-03-01 | 北京大学深圳医院 | Radioactive particle automation implantation equipment |
-
2019
- 2019-10-17 CN CN201910985676.3A patent/CN110575239A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207913023U (en) * | 2017-08-02 | 2018-09-28 | 于江平 | The universal seeds implanted equipment of self-locking pen type |
| CN208552847U (en) * | 2017-09-12 | 2019-03-01 | 北京大学深圳医院 | Radioactive particle automation implantation equipment |
| CN108310581A (en) * | 2018-03-27 | 2018-07-24 | 连俊杰 | A kind of respiratory delivery mask for lung ventilator |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191217 |
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| RJ01 | Rejection of invention patent application after publication |