CN111617392A - Radiotherapy thermoplastic film quick positioning and perforating device - Google Patents
Radiotherapy thermoplastic film quick positioning and perforating device Download PDFInfo
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- CN111617392A CN111617392A CN202010559889.2A CN202010559889A CN111617392A CN 111617392 A CN111617392 A CN 111617392A CN 202010559889 A CN202010559889 A CN 202010559889A CN 111617392 A CN111617392 A CN 111617392A
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- temperature thermoplastic
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/01—Means for holding or positioning work
- B26D7/02—Means for holding or positioning work with clamping means
- B26D7/025—Means for holding or positioning work with clamping means acting upon planar surfaces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/08—Means for treating work or cutting member to facilitate cutting
- B26D7/14—Means for treating work or cutting member to facilitate cutting by tensioning the work
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
- B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
- B26F1/02—Perforating by punching, e.g. with relatively-reciprocating punch and bed
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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
- A61N2005/1092—Details
- A61N2005/1097—Means for immobilizing the patient
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- Radiation-Therapy Devices (AREA)
Abstract
The invention discloses a radiotherapy thermoplastic film rapid positioning and tapping device, which comprises a sleeve with an open lower end; the sleeve is also internally provided with a plurality of liftable blade mounting plates and a plurality of barbs which are all positioned outside the blade mounting plates; still install a plurality of side pressure boards to the telescopic of sleeve center on the telescopic lateral wall, and install detachable cutting blade and lower clamp plate on the blade mounting panel, lower clamp plate is located cutting blade's inboard. In the process of perforating the low-temperature thermoplastic memory film, the on-line perforating can be realized at any position of the body surface of the patient without waiting for the cooling, hardening and shaping of the low-temperature thermoplastic memory film on the body surface of the patient, and the low-temperature thermoplastic memory film is far away from the body surface of the patient in the cutting process, so that the comfort of the patient is better; meanwhile, the invention can rapidly complete the tapping process, reduce the waiting time of patients, lighten the workload of technicians, and ensure that the incision after tapping of the low-temperature thermoplastic memory film is regular and smooth, and has simple structure and simple operation.
Description
Technical Field
The invention belongs to the technical field of radiotherapy human body positioning devices, and particularly relates to a radiotherapy thermoplastic film rapid positioning and tapping device.
Background
Radiotherapy is one of three main treatment methods of tumors, and has entered the precise individual radiotherapy age with the increasing development of radiotherapy technology. In the radiotherapy process, the fixed important link of developing accurate radiotherapy of radiotherapy position combines together through fixing device and the thermoplastic film that corresponds, carries out accurate position and fixes, powerful guarantee patient radiotherapy position repeatability and treatment accuracy. The existing radiotherapy body position fixation adopts a low-temperature thermoplastic memory film made of a high polymer material, the low-temperature thermoplastic memory film is distributed in a net shape, the X-ray transmittance is high (more than or equal to 99.9 percent), and thermoplastic films with various shapes can be selected according to the requirements of different clinical radiotherapy parts, so that the low-temperature thermoplastic memory film can be widely applied to the clinical radiotherapy process; meanwhile, the low-temperature thermoplastic memory film can be completely softened at about 65 ℃, is usually placed into 65 ℃ water for softening, is attached to the body surface of a patient after being stretched by a radiotherapy technician, presses a bony mark for individualized shaping, and is cooled, hardened and formed after the temperature is reduced, so that the repeatability and the accuracy of radiotherapy of the patient at each time can be ensured.
In radiotherapy, after a patient is fixed by the low-temperature thermoplastic memory film, the low-temperature thermoplastic memory film needs to be perforated in a focus area of the patient, so that the low-temperature thermoplastic memory film is used for reducing the skin dosage of the patient, assisting the body surface marking of the patient, relieving the stimulation of a stoma during operation, preventing the patient from vomiting and the like, reducing the treatment risk and uncertainty of the patient, and improving the accuracy and curative effect of treatment.
The existing method for opening the hole on the low-temperature thermoplastic memory film mostly adopts the modes of an art knife, scissors, a puncher and the like; when the low-temperature thermoplastic memory film is holed by adopting an art designer's knife and scissors, the thermoplastic film is thick and high in hardness, so that the holing process is time-consuming, labor-consuming, limited in position, low in quality and efficiency, easy to cause burrs at the edge of a cut, poor in comfort of a patient and easy to accidentally injure the patient and medical staff, and meanwhile, a large potential safety hazard exists in the holing operation process, and other areas outside a holing opening are easy to scratch; if a puncher is used for punching holes on the low-temperature thermoplastic memory film, but in order to be attached to the body surface of a patient, the hardened thermoplastic film is irregular and arched, so that the positioning punching is very inconvenient, and more areas on the thermoplastic film cannot be punched.
The above-mentioned trepanning mode, need after the low-temperature thermoplastic memory membrane plastic hardening, take off the "off-line" mode that the patient takes off from the body to trepanning, not merely difficult to guarantee accuracy, suitability and patient's position of trepanning and fixed comfort level; meanwhile, if the opening of the low-temperature thermoplastic memory film is used for marking the body surface of the patient, the patient needs to be required to keep the same body position as the original body position under the condition of separating from the thermoplastic film for fixing in the opening process of the medical staff, the body surface mark can be drawn only after the film buckling is finished until the opening is finished on the body surface of the patient, a large amount of time is needed for the whole process, the patient is difficult to keep the same body position in the whole process, and the marking precision is greatly reduced.
Disclosure of Invention
The invention aims to provide a device for quickly positioning and perforating a radiotherapy thermoplastic film, which adopts an 'online' mode, can adjust the position, shape, size and the like of a perforation according to the actual condition of a patient, and is far away from the body surface of the patient in the cutting process of a low-temperature thermoplastic memory film, so that the comfort of the patient is better; meanwhile, the invention can rapidly finish the hole opening, greatly shortens the waiting time of patients, has adjustable shape and size of the hole opening, accurate position and smooth edge after the hole opening, does not need to be polished, greatly improves the quality and efficiency of the hole opening, and can meet different clinical radiotherapy requirements.
In order to realize the purpose of the invention, the technical scheme is as follows: a radiotherapy thermoplastic film rapid positioning and perforating device comprises a sleeve with an open lower end; the sleeve is also internally provided with a plurality of liftable blade mounting plates and a plurality of barbs which are all positioned outside the blade mounting plates; still install a plurality of side pressure boards to the telescopic of sleeve center on the telescopic lateral wall, and install cutting blade and holding down plate on the blade mounting panel, the holding down plate is located cutting blade's inboard.
Furthermore, a second telescopic device which stretches downwards is further installed at the top of the sleeve, and the output end of the second telescopic device is fixed with the blade installation plate.
Further, the blade mounting plate is annular; the blade mounting panel is a plurality of, and a plurality of blade mounting panels set up with one heart, and is a plurality of all install cutting blade and holding down plate on the blade mounting panel.
Further, the cutting blade and the lower pressing plate are of an integral structure.
Further, the cutting blade or the lower pressing plate is any one of a circle, a triangle and a polygon.
Furthermore, an annular frame capable of moving up and down is installed in the sleeve, and the plurality of barbs are respectively located at the center and/or the edge of the annular frame.
Furthermore, a first telescopic device which stretches downwards is further installed at the top of the sleeve, and the output end of the first telescopic device is fixed with the annular frame.
Furthermore, the annular frame includes annular frame and the extension rod that extends to annular frame center, and the output of first telescoping device is fixed jointly with the extension end of a plurality of extension rods.
Further, the barb comprises a hook rod which is hinged on the annular frame, and a hook body is fixed at the lower end of the hook rod.
Furthermore, the hook body is V-shaped, two ends of the hook body are conical, and the lowest point of the hook body is arc-shaped.
Furthermore, the side pressing plates are uniformly distributed at intervals along the circumferential direction of the sleeve, and cutting grooves corresponding to the cutting blades are formed in the side pressing plates; the lower end of the lower pressing plate is higher than the cutting edge of the cutting blade.
Furthermore, a plurality of third expansion devices are fixedly installed in the circumferential direction of the sleeve, and a plurality of side pressure plates are fixed to the output ends of the third expansion devices one by one.
Furthermore, a limiting ring is further arranged at the edge of the lower end of the sleeve.
Furthermore, the outer side surface of the limiting ring is an arc surface.
Further, a handle is further mounted on the sleeve.
The beneficial effect of the invention is that,
when the low-temperature thermoplastic memory film needs to be perforated, the barb is moved downwards to enable the barb to hook up the low-temperature thermoplastic memory film, then the hooked low-temperature thermoplastic memory film is lifted upwards, the side pressing plate moves towards the center of the sleeve after the low-temperature thermoplastic memory film is lifted to a fixed height, the middle part of the lifted low-temperature thermoplastic memory film is sunken towards the center, at the moment, the cutting blade and the lower pressing plate synchronously move downwards, the cutting blade cuts the lifted low-temperature thermoplastic memory film when moving downwards, after the low-temperature thermoplastic memory film is cut, the cutting blade and the lower pressing plate continue to move downwards to enable the perforated edge of the low-temperature thermoplastic memory film to be folded by the lower pressing plate, then the side pressing plate moves outwards, the cutting blade and the lower pressing plate continue to move downwards to enable the perforated edge of the low-temperature thermoplastic memory film to be folded onto the outer surface of the low-temperature thermoplastic memory film, and enable the perforated edge of the low-temperature thermoplastic memory film to be folded and attached to the, not only accomplished the trompil to low temperature thermoplastic memory membrane, and made the edge smooth after the trompil, need not to polish, effectively prevented the trompil edge of low temperature thermoplastic memory membrane to patient's skin stab.
In the process of perforating the low-temperature thermoplastic memory film, the on-line perforating can be realized at any position of the body surface of the patient without waiting for the cooling, hardening and shaping of the low-temperature thermoplastic memory film on the body surface of the patient, and the low-temperature thermoplastic memory film is far away from the body surface of the patient in the cutting process, so that the comfort level of the patient is better; meanwhile, the invention can adjust the size of the opening by adopting cutting blades with different sizes, thereby realizing rapid opening, greatly shortening the waiting time of a patient, adjusting the opening position according to the actual condition of the patient, enabling the opening position to be more accurate, greatly improving the quality and efficiency of the opening and meeting different clinical radiotherapy requirements.
The invention can rapidly complete the tapping process, thereby greatly reducing the waiting time of patients and lightening the workload of technicians; meanwhile, the cut of the low-temperature thermoplastic memory film after being perforated is regular and smooth, the shaping is fast after being perforated, and the low-temperature thermoplastic memory film is simple in structure, simple to operate and convenient to carry. The invention can also increase marks on the body surface of the patient when the hole is opened, thereby improving the repeatability of radiotherapy positioning and the like.
Drawings
FIG. 1 is a schematic structural view of a device for rapidly positioning holes on a thermoplastic film for radiotherapy provided by the present invention;
FIG. 2 is a schematic diagram of the state that the radiotherapy thermoplastic film rapid positioning and tapping device provided by the invention lifts up the low-temperature thermoplastic memory film;
FIG. 3 is an enlarged view of a portion A of FIG. 1;
FIG. 4 is a cross-sectional schematic view of the cutting insert of FIG. 1;
FIG. 5 is a schematic structural view of the annular frame;
figure 6 is a schematic view of the barb of figure 1.
Reference numbers and corresponding part names in the drawings:
1. the cutting device comprises a sleeve, 2, a blade mounting plate, 3, a barb, 4, a side pressure plate, 5, a cutting blade, 6, a lower pressure plate, 7, an annular frame, 8, a first telescopic device, 9, a second telescopic device, 10, a third telescopic device, 11, a limiting ring, 12, a handle, 13 and a cutting groove;
31. a hook rod 32, a hook body;
71. annular frame, 72, extension rod.
Detailed Description
The present invention will be described in further detail below with reference to specific embodiments and with reference to the attached drawings.
As shown in fig. 1 to 6, the present invention provides a device for rapidly positioning and opening a thermoplastic film for radiotherapy, which comprises a sleeve 1 with an open lower end; the sleeve 1 is also internally provided with a plurality of liftable blade mounting plates 2 and a plurality of barbs 3, and the barbs 3 are all positioned outside the blade mounting plates 2; still install a plurality of side pressure boards 4 to the flexible in sleeve 1 center on the lateral wall of sleeve 1, and install cutting blade 5 and holding down plate 6 on the blade mounting panel 2, holding down plate 6 is located cutting blade 5's inboard.
The sleeve 1 is cylindrical, the upper end of the sleeve 1 is closed, and the lower end of the sleeve 1 is open; the blade mounting plate 2 is mainly used for mounting a cutting blade 5 and a lower pressing plate 6, and the up-and-down movement of the blade mounting plate 2 and the up-and-down movement of the barb 3 are separately performed; the barb 3 is used for hooking the low-temperature thermoplastic memory film, so that the position of the low-temperature thermoplastic memory film to be perforated is far away from the skin of a patient; the barbs 3 are uniformly arranged at intervals along the circumferential direction of the sleeve 1, the barbs 3 hook up the low-temperature thermoplastic memory film together, the top of the hooked low-temperature thermoplastic memory film is planar, and the periphery of the top of the low-temperature thermoplastic memory film is conical.
The side pressure plates 4 are arranged along the radial direction of the sleeve 1, the side pressure plates 4 are uniformly distributed at intervals along the circumferential direction of the sleeve 1, the inner sides of the side pressure plates 4 jointly enclose a ring shape, and the length of the side pressure plates 4 extending into the sleeve 1 is different through the extension and contraction of the side pressure plates 4, so that the diameters of the rings jointly enclosed by the inner sides of the side pressure plates 4 are different; when the barb 3 hooks the low-temperature thermoplastic memory film, the hooked periphery of the low-temperature thermoplastic memory film is conical, and when the plurality of side pressing plates 4 jointly extend into the sleeve 1, the plurality of side pressing plates 4 jointly support the middle part of the hooked low-temperature thermoplastic memory film, so that the middle part of the hooked low-temperature thermoplastic memory film is inwards recessed; when the length of the side pressure plate 4 extending into the sleeve 1 is larger than the distance between the lower pressure plate 6 and the inner side surface of the sleeve 1, the upper part of the hooked low-temperature thermoplastic memory film is in an inverted circular truncated cone shape, and the lower part of the hooked low-temperature thermoplastic memory film is in a circular truncated cone shape.
The cutting blade 5 is a direct use of the existing cutting blade 5, and the cutting blade 5 can open the hole of the low temperature thermoplastic memory film when the cutting blade 5 is moved downward. The lower pressing plate 6 is mainly used for flanging the opening edge of the low-temperature thermoplastic memory film.
When the low-temperature thermoplastic memory film needs to be perforated, the sleeve 1 is placed at the position, to be perforated, of the low-temperature thermoplastic memory film, the center of the sleeve 1 and the center, to be perforated, of the low-temperature thermoplastic memory film are located on the same straight line, then the hook moves downwards and is inserted into the low-temperature thermoplastic memory film, when the hook is hooked on the low-temperature thermoplastic memory film, the hook moves upwards, the position, to be perforated, of the low-temperature thermoplastic memory film is lifted, the top of the lifted low-temperature thermoplastic memory film is horizontal, and the periphery of the top of the lifted low-temperature thermoplastic memory film is conical.
Then, the side pressing plate 4 moves into the sleeve 1, when the length of the side pressing plate 4 extending into the sleeve 1 is larger than the distance between the lower pressing plate 6 and the inner side face of the sleeve 1, the upper part of the hooked low-temperature thermoplastic memory film is in an inverted circular truncated cone shape, and the lower part of the hooked low-temperature thermoplastic memory film is in a circular truncated cone shape; at this time, the blade mounting plate 2 moves downwards, when the blade mounting plate 2 moves downwards, the cutting blade 5 and the lower pressing plate 6 synchronously move downwards, the cutting blade 5 moves downwards, the cutting blade 5 cuts the low-temperature thermoplastic memory film along with the movement of the cutting blade 5 and the lower pressing plate 6, the lower pressing plate 6 compresses the cut thermoplastic film, when the cutting blade 5 cuts on the side pressing plate 4, the blade mounting plate 2 stops moving downwards, at this time, the cutting blade 5 finishes cutting the low-temperature thermoplastic memory film, the low-temperature thermoplastic memory film cut by the cutting blade 5 is two-layer, because the cutting blade 5 synchronously presses downwards the lower pressing plate 6 at the same time of cutting the low-temperature thermoplastic memory film, the second layer of low-temperature thermoplastic memory film cut by the cutting blade 5 is folded and compressed on the side pressing plate 4, and the opening edge of the low-temperature thermoplastic memory film is folded outside the low-temperature thermoplastic memory film, thereby effectively preventing the burrs at the edge of the opening hole of the low-temperature thermoplastic memory film from stabbing the skin of the patient.
And a second telescopic device 9 which is telescopic downwards is further installed at the top of the sleeve 1, and the output end of the second telescopic device 9 is fixed with the blade mounting plate 2. The number of the second telescopic devices 9 is at least one, the output ends of the second telescopic devices 9 are fixed with the blade mounting plate 2 through the flange plate by screws, and the second telescopic devices 9 jointly drive the blade mounting plate 2; when the blade mounting plate 2 is an annular plate, at least two second telescopic devices 9 are provided, and at the moment, the plurality of second telescopic devices 9 are symmetrically arranged along the blade mounting plate 2; when the blade mounting plate 2 is plate-shaped, the number of the second telescopic devices 9 is one, and the second telescopic devices 9 are positioned in the center of the blade mounting plate 2.
The blade mounting plate 2 is annular; the number of the blade mounting plates 2 is multiple, the blade mounting plates 2 are concentrically arranged, and the plurality of the blade mounting plates 2 are provided with cutting blades 5 and lower pressing plates 6; the circle centers of the blade mounting plates 2 are at the same point, and a radial gap is formed between every two adjacent blade mounting plates 2, so that the diameters of the blade mounting plates 2 are different; a plurality of cutting blade 5's diameter is all inequality, and a plurality of cutting blade 5 pass through modes such as screw or welding respectively one-to-one fix on a plurality of blade mounting panels 2, simultaneously, all install on every blade mounting panel 2 with cutting blade 5 complex holding down plate 6, and other modes such as screw or welding are fixed on blade mounting panel 2 to holding down plate 6. When needs carry out the trompil to low temperature thermoplastic memory membrane, no matter the cutting blade that adopts any kind of size carries out the trompil, cutting blade 5 all can realize carrying out the turn-ups to low temperature thermoplastic memory membrane when changeing the trompil to low temperature thermoplastic memory membrane.
Cutting blade 5 and holding down plate 6 structure as an organic whole not only make cutting blade 5 and holding down plate 6's installation save space more, and make cutting blade 5 can compress tightly the design when carrying out the trompil to the memory membrane is moulded to low temperature heat, make cutting blade 5 accomplish can realize the turn-ups when moulding the memory membrane trompil to low temperature heat, make the turn-ups effect of memory membrane is moulded to low temperature heat better.
An annular frame 7 capable of moving up and down is further installed in the sleeve 1, and the plurality of barbs 3 are respectively located at the center and/or the edge of the annular frame 7; the annular frame 7 is of a frame structure, the shape of the annular frame 7 is the same as that of the cutting blade 5, and the center of the annular frame 7 and the center of the cutting blade 5 are on the same straight line; the annular frame 7 is preferably circular in shape, so that the installation of the barbs 3 is facilitated, the annular frame 7 is matched with the sleeve 1 in shape, and the installation of the annular frame 7 is more space-saving. The upper end of the barb 3 is movably connected with the annular frame 7, so that the barb can swing on the annular frame 7, and the hook can be shaken to stably hang the low-temperature thermoplastic memory film on the hook when the hook is inserted into the low-temperature thermoplastic memory film.
When the barb 3 is installed at the center of the annular frame 7, the blade mounting plate 2 is in a circular ring shape, the barb 3 conveniently installed at the center of the annular frame 7 can penetrate through the blade mounting plate 2 to hook the low-temperature thermoplastic memory film, and the barb 3 is installed on the annular frame 7, so that the cut part of the center of the low-temperature thermoplastic memory film can be hooked on the hook at the center of the annular frame 7 after the low-temperature thermoplastic memory film is cut.
The top of the sleeve 1 is also provided with a first telescopic device 8 which is telescopic downwards, and the output end of the first telescopic device 8 is fixed with the annular frame 7; the number of the first telescopic devices 8 is at least one, and the plurality of first telescopic devices 8 jointly drive the annular frame 7 to move up and down; when the number of the first telescopic devices 8 is one, the first telescopic devices 8 are positioned at the center of the sleeve 1, and the annular frame 7 is driven to move up and down through the telescopic action of the first telescopic devices 8, so that the barbs 3 arranged on the annular frame 7 move up and down synchronously; when the number of the first telescopic devices 8 is multiple, the multiple first telescopic devices 8 are symmetrically arranged on the annular frame 7; the output end of the first telescopic device 8 is fixed with the annular frame 7 through screws or welding.
The annular frame 7 comprises an annular frame 71 and extension rods 72 extending towards the center of the annular frame 71, and the output end of the first telescopic device 8 is fixed with the extension ends of the extension rods 72; the annular frame 71 is circular, at least two extension rods 72 are arranged, and the extension rods 72 are arranged along the radius direction of the annular frame 71; in order to facilitate the fixing of the plurality of extension rods 72 and the first telescopic device 8, and the extension ends of the plurality of extension rods 72 are commonly provided with shaft sleeves, the shaft sleeves are fixed on the output end of the first telescopic device 8 through screws. When the barbs 3 are only mounted on the edge of the annular frame 7, a plurality of barbs 3 are mounted on the annular frame 71; when the barbs 3 are simultaneously mounted on the edge of the annular frame 7 and the center of the annular frame 7, the plurality of barbs 3 are mounted on the extension rod 72 and the annular frame 71, respectively.
The barb 3 comprises a hook rod 31 which is hinged on the annular frame 7, and a hook body 32 is fixed at the lower end of the hook rod 31; the upper end of the hook rod 31 is hinged on the annular frame 7, the hook body 32 and the hook body 32 are of an integrated structure, the barb 3 can shake on the annular frame 7, the hook body 32 is more stable after hooking the low-temperature thermoplastic memory film, and the hook body 32 is effectively prevented from falling off from the hook rod 31.
The hook body 32 is V-shaped, two ends of the hook body 32 are conical, and the lowest point of the hook body 32 is arc-shaped; by making the two ends of the hook body 32 higher than the middle part of the hook body 32, when the hook body 32 is inserted into the low-temperature thermoplastic memory film and then pulled upwards, the low-temperature thermoplastic memory film can be hung on the hook body 32, so that the low-temperature thermoplastic memory film is hooked by the barb 3, and the position of the low-temperature thermoplastic memory film to be punched is lifted when the barb 3 moves upwards. By setting the lowest point of the hook body 32 to be circular arc-shaped, the barb 3 is prevented from stabbing the skin of the patient when passing through the low-temperature thermoplastic memory film. The hook body 32 may also be U-shaped or arc-shaped.
The side pressing plates 4 are uniformly arranged at intervals along the circumferential direction of the sleeve 1, so that the distance between every two adjacent side pressing plates 4 is equal, and the force of the side pressing plates 4 on the low-temperature thermoplastic memory film after being lifted is uniformly distributed; meanwhile, one end of each side pressing plate 4 extending into the sleeve 1 is encircled into a circular ring with the center of the sleeve 1 as a circle, so that when the side pressing plates 4 extrude the lifted low-temperature thermoplastic memory film, the forming effect of the upper part of the lifted low-temperature thermoplastic memory film and the lower part of the lifted low-temperature thermoplastic memory film is better, the shape of the cut of the lifted low-temperature thermoplastic memory film after the hole is formed is more neat, and the hole formed by the lifted low-temperature thermoplastic memory film is more attractive.
Cutting grooves corresponding to the cutting blades 5 are formed in the side pressing plates 4, and the lower ends of the lower pressing plates 6 are higher than the cutting edges of the cutting blades 5; because cutting blade 5 is a plurality of, consequently, when adopting different cutting blade 5 to cut, side pressure plate 4 stretches into sleeve 1 interior length difference, but the cutting groove on side pressure plate 4 corresponds with cutting blade 5's blade all the time, can not only effectively avoid cutting blade 5 to cut the continuous condition when the memory membrane cutting is moulded to low temperature heat, it is better to the compressing tightly effect at the trompil edge still to make cutting blade 5 when holing to the memory membrane is moulded to low temperature heat, thereby make the effect of turning over of trompil edge better.
A plurality of third expansion devices 10 are fixedly arranged in the circumferential direction of the sleeve 1, and a plurality of side pressure plates 4 are fixed on the output ends of the third expansion devices 10 one by one; the third telescopic device 10 is mainly used for driving the side pressure plate 4, so that the side pressure plate 4 can be more conveniently extended into or withdrawn from the sleeve 1; the third expansion device 10 is fixedly arranged on the outer circular surface of the sleeve 1 through screws, and the side pressure plate 4 is fixedly arranged on the output end of the third expansion device 10 through screws. The first telescopic device 8, the second telescopic device 9 and the third telescopic device 10 are cylinders, hydraulic cylinders, electronic telescopic rods or other linear driving elements.
A limiting ring 11 is further arranged at the lower end edge of the sleeve 1; the limiting ring 11 is located the inward flange of sleeve 1 lower extreme, and the limiting ring 11 mainly used carries out the transition to low temperature thermoplastic memory membrane when being mentioned, reduces the friction between low temperature thermoplastic memory membrane and the sleeve 1, avoids low temperature thermoplastic memory membrane 1 lower limb to cause the damage to low temperature thermoplastic memory membrane when being mentioned by barb 3. The outer side surface of the limiting ring 11 is an arc surface, so that the lower end of the sleeve 1 is smoother, and the damage to the low-temperature thermoplastic memory film is effectively reduced.
The sleeve 1 is further provided with a handle 12, so that people can conveniently hold the low-temperature thermoplastic memory film when the hole is formed in the low-temperature thermoplastic memory film.
When the low-temperature thermoplastic memory film needs to be perforated, the sleeve 1 is firstly placed at the position of the low-temperature thermoplastic memory film to be perforated, the center of the sleeve 1 and the center of the low-temperature thermoplastic memory film to be perforated are on the same straight line, then the first expansion device 8 drives the annular frame 7 to move downwards, when the annular frame 7 moves downwards, the barb 3 on the annular frame 7 synchronously moves downwards, and after the barb 3 is inserted on the low-temperature thermoplastic memory film along with the gradual downward movement of the barb 3, the first expansion device 8 drives the annular frame 7 to move upwards, thereby driving the barb 3 to move upwards synchronously, leading the low-temperature thermoplastic memory film to be hung on the hook body 32, leading the ring-shaped frame 7 to move upwards continuously along with the driving of the first expansion device 8, leading the position of the low-temperature thermoplastic memory film to be punched to be lifted, the top of the lifted low-temperature thermoplastic memory film is horizontal, and the periphery of the top of the lifted low-temperature thermoplastic memory film is conical.
Then, the third telescopic device 10 drives the side pressure plate 4 to move towards the inside of the sleeve 1, when the length of the side pressure plate 4 extending into the sleeve 1 is larger than the distance between the lower pressure plate 6 and the inner side face of the sleeve 1, the third telescopic device 10 stops driving the side pressure plate 4, at the moment, the upper part of the hooked low-temperature thermoplastic memory film is in an inverted circular truncated cone shape, and the lower part of the hooked low-temperature thermoplastic memory film is in a circular truncated cone shape; then, the second stretching device 9 drives the blade mounting plate 2 to move downwards, when the blade mounting plate 2 moves downwards, the cutting blade 5 and the lower pressing plate 6 synchronously move downwards, the cutting blade 5 cuts the low-temperature thermoplastic memory film along with the movement of the cutting blade 5 and the lower pressing plate 6, the lower pressing plate 6 compresses the cut thermoplastic film, when the cutting blade 5 cuts on the side pressing plate 4, the blade mounting plate 2 stops moving downwards, at this time, the cutting blade 5 finishes cutting the low-temperature thermoplastic memory film, the low-temperature thermoplastic memory film cut by the cutting blade 5 is two layers, because the cutting blade 5 synchronously presses downwards the lower pressing plate 6 while cutting the low-temperature thermoplastic memory film, the second layer of low-temperature thermoplastic memory film cut by the cutting blade 5 is folded and compressed on the side pressing plate 4, and the opening edge of the low-temperature thermoplastic memory film is folded and compressed outside the low-temperature thermoplastic memory film, thereby effectively preventing the burrs at the edge of the opening hole of the low-temperature thermoplastic memory film from stabbing the skin of the patient.
Finally, the third telescopic device 10 drives the side pressure plate 4 to push out the sleeve 1, after the side pressure plate 4 exits the sleeve 1, the cut part of the low-temperature thermoplastic memory film is hung on the barb 3, the first telescopic device 8 drives the barb 3 to move downwards, and the medical staff takes the cut part of the low-temperature thermoplastic memory film off from the barb 3.
The invention can rapidly complete the tapping process, thereby greatly reducing the waiting time of patients and lightening the workload of technicians; meanwhile, the cut of the low-temperature thermoplastic memory film after being perforated is regular and smooth, the shaping is fast after being perforated, and the low-temperature thermoplastic memory film is simple in structure, simple to operate and convenient to carry. The invention can also increase marks on the body surface of the patient when the hole is opened, thereby improving the repeatability of radiotherapy positioning and the like.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A radiotherapy thermoplastic film rapid positioning and hole opening device is characterized by comprising a sleeve (1) with an open lower end; the sleeve (1) is also internally provided with a plurality of liftable blade mounting plates (2) and a plurality of barbs (3), and the barbs (3) are all positioned on the outer side of the blade mounting plates (2); still install a plurality of side pressure boards (4) to sleeve (1) center flexible on the lateral wall of sleeve (1), and install detachable cutting blade (5) and holding down plate (6) on blade mounting panel (2), holding down plate (6) are located the inboard of cutting blade (5).
2. Radiotherapy thermoplastic film quick positioning tapping device according to claim 1, characterized in that a second telescopic device (9) is further mounted on the top of the sleeve (1) and is telescopic downwards, and the output end of the second telescopic device (9) is fixed with the blade mounting plate (2).
3. Radiotherapy thermoplastic film quick positioning tapping device according to claim 1, characterised in that said blade mounting plate (2) is annular; blade mounting panel (2) are a plurality of, and a plurality of blade mounting panel (2) set up with one heart, and are a plurality of all install cutting blade (5) and holding down plate (6) on blade mounting panel (2).
4. Radiation therapy thermoplastic film quick positioning tapping device according to claim 1, characterized in that an annular shelf (7) which can move up and down is further installed in the sleeve (1), and a plurality of barbs (3) are respectively positioned at the center and/or the edge of the annular shelf (7).
5. Radiotherapy thermoplastic film quick positioning tapping device according to claim 1, characterized in that a first telescopic device (8) which is telescopic downwards is further installed on the top of the sleeve (1), and the output end of the first telescopic device (8) is fixed with the annular frame (7).
6. Thermoplastic film quick positioning tapping device for radiotherapy according to claim 4 or 5, characterized in that said annular frame (7) comprises an annular frame (71) and extension rods (72) extending towards the center of the annular frame (71), the output end of the first telescopic means (8) being co-fixed with the extension ends of the plurality of extension rods (72).
7. Radiotherapeutic thermoplastic film quick positioning tapping device according to any one of claims 1-6, characterised in that said barb (3) comprises a hooking rod (31) hingedly mounted on an annular frame (7), a hooking body (32) being fixed to the lower end of said hooking rod (31).
8. The radiotherapeutic thermoplastic film rapid positioning and tapping device as claimed in claim 7, wherein the hook body (32) is V-shaped, both ends of the hook body (32) are cone-shaped, and the lowest point of the hook body (32) is arc-shaped.
9. The radiotherapeutic thermoplastic film rapid positioning and perforating device as claimed in claim 1, characterized in that a plurality of the side pressing plates (4) are uniformly arranged at intervals along the circumferential direction of the sleeve (1), and a cutting groove (13) corresponding to the cutting blade (5) is further formed on the plurality of side pressing plates (4); the lower end of the lower pressing plate (6) is higher than the cutting edge of the cutting blade (5).
10. Radiation therapy thermoplastic film quick positioning tapping device according to any one of claims 1-9, characterized in that a plurality of third telescopic devices (10) are fixedly arranged in the circumferential direction of the sleeve (1), and a plurality of side pressure plates (4) are fixed on the output ends of the plurality of third telescopic devices (10) one by one.
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| CN202010559889.2A CN111617392B (en) | 2020-06-18 | 2020-06-18 | Radiotherapy thermoplastic film quick positioning and perforating device |
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| CN202010559889.2A CN111617392B (en) | 2020-06-18 | 2020-06-18 | Radiotherapy thermoplastic film quick positioning and perforating device |
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| CN111617392B CN111617392B (en) | 2022-04-15 |
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| WO2019212762A1 (en) * | 2018-05-01 | 2019-11-07 | Medtec, Inc. | System comprising a protective cover and a preform of a body part fixation device |
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| US5397333A (en) * | 1993-09-24 | 1995-03-14 | Nusurg Medical, Inc. | Surgical hook knife |
| CN205766263U (en) * | 2016-08-13 | 2016-12-07 | 杨焱 | A kind of special window opener of radiotherapy localization thermoplastic film |
| CN107913474A (en) * | 2017-11-14 | 2018-04-17 | 刘桂平 | A kind of special hot type window opener of radiotherapy localization thermoplastic film |
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