CN212415853U - 3D prints baffle device based on supplementary percutaneous lung puncture of body surface sign - Google Patents
3D prints baffle device based on supplementary percutaneous lung puncture of body surface sign Download PDFInfo
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- CN212415853U CN212415853U CN202020308362.8U CN202020308362U CN212415853U CN 212415853 U CN212415853 U CN 212415853U CN 202020308362 U CN202020308362 U CN 202020308362U CN 212415853 U CN212415853 U CN 212415853U
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Abstract
The utility model discloses a 3D prints baffle device based on supplementary percutaneous lung puncture of body surface sign, including puncture needle insertion subassembly and assistance-localization real-time subassembly. The auxiliary positioning component comprises a suprasternal fossa identification device, a front median line identification device, a sternum corner identification device, a xiphoid process identification device, a clavicle upper edge identification device, a costal arch identification device and a rear median line identification device; the puncture needle inserting component comprises a puncture needle inserting sleeve and an auxiliary needle inserting plane at the bottom of the sleeve, and the puncture needle inserting plane is attached to the thorax. This 3D prints baffle device increases on original 3D prints preceding location baffle basis that the bone nature of discernment body surface marks subassembly and satisfies the requirement of inserting the needle from front portion, side or rear, does not receive the respiratory motion's of lung influence, can improve the accuracy of using baffle percutaneous lung puncture, supplementary preoperative location and puncture biopsy, make percutaneous lung puncture break away from the dependence to CT scanning and reduce the radiation dose that the patient received.
Description
Technical Field
The utility model relates to a medical treatment auxiliary instrument technical field especially relates to a 3D prints baffle device based on supplementary percutaneous lung puncture of body surface sign.
Background
Percutaneous pulmonary puncture is a clinical examination means applied to preoperative localization of pulmonary nodules and biopsy of lung masses which cannot be excised through surgery.
Since the widespread use of television assisted thoracoscopic surgery (VATS) in the clinic in the nineties of the last century, this surgical approach has now become the standard surgical modality for thoracic surgery. VATS reduces lung function damage, reduces post-operative pain and shortens hospital stays compared to traditional open chest surgery. For patients with early stage lung cancer, VATS descending wedge resection of the lung lobes preserves as much of the lung parenchyma as possible and is therefore becoming the primary procedure of more and more physicians.
With the widespread use of low dose ct (ldct) in lung tumor screening, an increasing number of pulmonary nodules of undetermined nature are being identified in large numbers, and VATS is being applied as a minimally invasive surgical tool for the qualitative diagnosis and surgical treatment of these pulmonary nodules. In order to determine the position of the target nodule and the proper surgical margin, the traditional method is that the surgeon defines the resection area by observing and touching, but the accuracy of the operation is highly dependent on the experience of the operator, and once the nodule cannot be accurately positioned, the lung lobe resection is inevitably converted into anatomical resection, even cannot be completed by VATS and needs to be converted into open-chest surgery. To overcome this clinical problem, various means of preoperative localization have been developed.
The preoperative positioning means reported at present mainly comprise the following four methods: a physical marking method, namely, the position of a nodule is determined by percutaneous lung puncture by using physical markers such as a hooked steel wire, a micro spring ring and the like under the guidance of electronic Computed Tomography (CT); staining method, i.e. staining the lung parenchyma by fine needle injection under the cooperation of CT for the distinction in the operation, the commonly used staining agent includes methylene blue, ink, iodine oil, etc.; the ultrasonic auxiliary method is that ultrasonic waves are used for determining the position of a nodule in the thoracoscope operation; molecular targeting method, i.e. using specific molecular targeting agent to gather in tumor cells to determine the excision range.
The preoperative positioning method widely applied at present is a physical marking method under the guidance of CT, the method determines the position of a nodule and delimits an excision range by inserting a marker through preoperative percutaneous puncture, and the success rate can reach more than 95 percent. However, whether using hooked wire or micro-spring coils for preoperative positioning, this method relies on CT scanning, which somewhat complicates the procedure and inevitably subjects the patient to more radiation.
Furthermore, for some imaging examinations of suspected malignant lung tumors, CT-guided percutaneous lung biopsy is an important means for definitive diagnosis. After the tumor cast-off cells and tumor tissues obtained by the puncture biopsy are smeared or embedded for liquid-based cytology examination, the pathological subtype and tumor gene mutation condition of the lung tumor can be determined, and basic information is provided for the formulation of the next treatment scheme.
CT guided needle biopsy is currently the most widely used biopsy method, but because it relies on CT imaging, some operators are limited in experience by repeated scanning to confirm the needle path and depth, which increases the radiation dose to the patient and prolongs the operation time. The biopsy precision of this method still needs to be improved.
The 3D printing technology is widely applied to the field of medical treatment and health at present, and has great development prospect due to the fact that personalized design can be carried out on different patients. By obtaining the preoperative scanning CT image of the patient, a personalized three-dimensional image is constructed, the needle insertion path of the percutaneous lung puncture patient can be simulated, and the optimal needle insertion pore channel is designed. Then, a more remarkable bony mark on the three-dimensional image is selected as a mark, and a 3D printing guide plate which is based on the bony mark, comprises a needle inlet hole and is tightly attached to the chest wall is designed, so that the precision of positioning and biopsy before percutaneous puncture can be improved, the radiation dose of a patient can be reduced, and the operation time can be shortened.
The 3D printing guide plate designed in the early stage does not have a component for determining the body surface mark, so that the position of the guide plate is greatly influenced by respiratory motion in the actual positioning process. Because the construction of the individualized three-dimensional imaging of the patient is based on the static image of preoperative scanning CT, after the positioning guide plate designed according to the static image is placed on the thorax of the patient, the deviation between the actual needle inserting pore passage and the initial design path is often caused due to the dynamic influence factor of the respiratory motion of the lung. This deviation is more pronounced when the nodule location is slightly inferior to the diaphragm. Therefore, by adding the body surface mark identification assembly, the change of the position of a pulmonary nodule caused by the influence of respiratory motion is reduced as much as possible, and the puncture needle insertion accuracy is improved.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an above-mentioned problem among the prior art is solved, a 3D prints baffle device based on supplementary percutaneous lung puncture of body surface sign is proposed, increases discernment body surface bony sign subassembly on original 3D prints preceding operation location baffle basis for the bony sign of discernment includes that the edge of going up before the both sides clavicle and clearance, sternum fossa superior, sternum angle, preceding median line, xiphoid process and both sides costal arch. For patients with lateral or dorsal needle insertion, it is also necessary to add a component for identifying the posterior midline.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a 3D printing guide plate device based on body surface mark assisted percutaneous lung puncture, which is integrally formed by adopting a 3D printing technology and mainly comprises an auxiliary positioning component, a puncture needle insertion component, an auxiliary positioning component and a puncture needle insertion component connecting arm; wherein:
the auxiliary positioning assembly comprises a main body and upper and lower edge structures which are arranged on the main body and distributed in an X-shaped structure, and the auxiliary positioning assembly is integrally bent inwards; from top to bottom, on the main body are a suprasternal fossa identification device, a front median line identification device, a sternal angle identification device and a xiphoid process identification device respectively; the clavicle upper edge identification device is positioned on the upper edge structure and is bilaterally symmetrical; the rib bow identification device is positioned on the lower edge structure and is symmetrical on two sides;
the connecting arm is a D-shaped structure with the main body extending outwards;
the puncture needle inserting component comprises a puncture needle inserting sleeve and an auxiliary needle inserting plane at the bottom of the sleeve, and the puncture needle inserting plane is attached to the thorax.
Further, when the needle is inserted from the front or partially from the side, the puncture needle assembly is positioned at the upper right corner of the connecting arm.
Further, when the needle is inserted from the side or the back, the device also comprises a back structure which is buckled and fixed with the connecting arms through the connecting grooves, and the back structure comprises a back main body, the back connecting arms which are formed by extending the back main body outwards and are in a triangular shape, and a back median line recognition device which is positioned in the middle of the back main body;
the puncture needle inserting assembly is positioned at the part of the bevel edge of the rear connecting arm extending to the lateral part of the thorax.
Furthermore, the puncture needle-inserting sleeve is positioned at the center of the fan-shaped auxiliary needle-inserting plane, and the metal sheath used in puncture positioning is placed in the puncture needle-inserting sleeve.
Furthermore, the auxiliary needle insertion plane at the bottom of the sleeve is provided with a fan-shaped notch which is closely adjacent to the sleeve, after the guide plate is arranged on the thorax of the patient according to the bony body surface mark, an operator can confirm the position of the target intercostal space again by a finger through the notch, and the puncture sleeve is ensured to be over against the target intercostal space so as to smoothly insert the needle. In addition, the fan-shaped notch can be used for disinfecting and locally anaesthetizing the skin and assisting in determining the entry of the positioning needle from the center of the sleeve.
Further, the position structure of the clavicle upper edge identification device is consistent with the clavicle front upper edges on two sides.
Further, the suprasternal fossa identification means is recessed downward to determine the location of the suprasternal fossa and assist in securing the guide plate.
Furthermore, the front median line recognition device is a longitudinal rectangular hollow structure in the center of the main body, and the position of the front median line recognition device corresponds to the mark line marked with the front median line on the skin of the patient.
Furthermore, the sternum angle identification device is a transverse rectangular hollow structure which is arranged on the upper center of the main body, and the position of the transverse rectangular hollow structure corresponds to a mark line for marking the sternum angle on the skin of the patient.
Furthermore, the xiphoid process recognition device is characterized in that the lower edge of the main body is upwards sunken to assist in fixing the lower edge of the guide plate device.
Furthermore, the two sides of the costal arch identification device are symmetrically in a splayed shape, the splayed shape is bent to the lower part of the thorax at a certain angle, the individualized customization is carried out according to the scanned image of the patient, and the position of the lower edge of the device is consistent with that of the lower edge of the costal arch.
Further, the posterior midline recognition device is a longitudinal rectangular hollow structure in the center of the posterior main body, and the position of the posterior midline recognition device corresponds to the position of the posterior midline marked according to the spinous process of the spine.
Further, the material of the 3D integrated printing is selected from metal, ABS resin, photosensitive resin, polylactic acid, polyvinyl alcohol, or nylon.
Further, the material of the 3D integral printing is preferably liquid photosensitive resin.
The above technical scheme is adopted in the utility model, compared with the prior art, following technological effect has:
the utility model provides a 3D prints baffle device based on supplementary percutaneous lung puncture of body surface mark increases discernment body surface bony nature mark subassembly on original 3D prints preceding location baffle basis of art for the bony nature mark of discernment includes that the reason goes up before the both sides clavicle and clearance, sternum supraclavicular fossa, sternum angle, preceding median, xiphoid process and both sides costal arch, and the patient that partial edgewise needle insertion and rear portion needle insertion need increase the median device after the discernment. By adding the bony sign recognition device, the influence of the dynamic factor of lung respiratory motion is reduced, the accuracy of percutaneous lung puncture by using the guide plate can be improved, the preoperative positioning of pulmonary nodules and the puncture biopsy can get rid of the dependence on CT scanning in the future, and the radiation dose of a patient is reduced.
Drawings
Fig. 1 is a schematic structural view of the 3D printing guide plate device for assisting percutaneous lung puncture based on body surface markers, at which time the patient takes a horizontal position and inserts a needle;
fig. 2 is a schematic structural view of the 3D printing guide plate device for assisting percutaneous lung puncture based on body surface markers, at this time, the patient takes a lateral recumbent position and inserts a needle, and the view is a front view;
fig. 3 is a schematic structural view of the 3D printing guide plate device for assisting percutaneous lung puncture based on body surface markers, at this time, the patient takes a lateral recumbent position and inserts a needle, and the view is a side view;
FIG. 4 is a schematic view of the 3D printing guide plate device for assisting the percutaneous lung puncture and the digital simulation of the surface topography of the patient in the first embodiment of the present invention, wherein the patient is inserted into the needle in the horizontal position;
fig. 5 is a schematic diagram illustrating CT scanning comparison before preoperative positioning (a), placement of an auxiliary puncture guide plate (B), and after puncture needle insertion (C) for a patient in an embodiment of the present invention;
FIG. 6 is a schematic view of the 3D printing guide plate device for assisting the percutaneous lung puncture and the digital simulation of the surface morphology of the patient in the second application of the present invention, wherein the patient is inserted into the needle in the lateral decubitus position, and the front view is shown in the figure;
FIG. 7 is a schematic view of the 3D printing guide plate device for assisting the percutaneous lung puncture and the digital simulation of the surface topography of the patient in the second application of the present invention, wherein the patient takes the lateral decubitus position and inserts the needle, and the view is a rear view;
FIG. 8 is a schematic diagram showing the CT scanning comparison of the patient before the needle biopsy (A), before the auxiliary needle guide (B) and after the needle insertion (C);
wherein, 1-clavicle upper edge identification device; 2-a sternal suprafossa identification device; 3-anterior midline recognition means; 4-sternal angle identification means; 5-xiphoid process identification means; 6-a costal arch identification device; 7-a linker arm; 8-puncturing and inserting the needle sleeve; 9-auxiliary needle inserting plane; 10-a puncture needle insertion assembly; 11-posterior midline identification means; 12-a rear connecting arm; 20-an auxiliary positioning assembly; 21-a body; 22-a rear body; 30-connecting the grooves.
Detailed Description
The utility model provides a 3D prints baffle device based on supplementary percutaneous lung puncture of body surface sign increases discernment body surface bony nature mark subassembly on original 3D prints preceding operation location baffle basis.
The following describes the present invention in further detail with reference to the following examples and drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
Example one
The embodiment is the structure of a 3D printing guide plate device for assisting the positioning before the percutaneous lung puncture operation based on body surface marks, and the device is applied to a patient who performs the positioning before the operation by taking a horizontal position through a front part and a part of a side part needle insertion.
As shown in figure 1, the device is integrally formed by adopting a 3D printing technology and mainly comprises an auxiliary positioning assembly 20, a puncture needle inserting assembly 10 and a connecting arm 7. The auxiliary positioning assembly 20 comprises a main body 21 and upper and lower edge structures arranged on the main body 21 and distributed in an X-shaped structure, and the whole body is bent inwards; from top to bottom, on the main body 21 are a suprasternal fossa identification device 2, a front median line identification device 3, a sternal angle identification device 4 and a xiphoid process identification device 5, respectively; the clavicle upper edge identification device 1 is positioned on the upper edge structure and is bilaterally symmetrical; on the lower edge structure are bilaterally symmetrical rib bow identification means 6.
The connecting arm 7 is a structure extending outwards from the main body 21 and is in a D shape;
the puncture needle assembly 10 is located at the upper right corner of the main body 21 extending outwards and has a D-shaped structure, and comprises a puncture needle cannula 8 and an auxiliary needle inserting plane 9 which are attached to the thorax.
Puncture needle insertion cannula 8: the angle and the length of the needle inserting metal sheath are designed according to the needle inserting path. Before puncture positioning, a two-dimensional CT scanning image of a patient needs to be exported, and then the image is imported into 3D design software (MimicsResearch 20.0). Firstly, initially designing a needle insertion path on a two-dimensional CT scanning plane by using a cylindrical model, then carrying out three-dimensional reconstruction on a CT image, clearly displaying a patient thoracic bone mark and a target pulmonary nodule, and adjusting the needle insertion angle and depth according to the relative position of the cylindrical model and the thoracic bone mark of the patient to ensure that a cylindrical simulated needle channel is inserted from the middle part close to the intercostal space.
The cylindrical model represents a puncture needle inlet hole channel, the puncture needle inlet sleeve is a hollow cylindrical structure which surrounds the cylindrical model in space, and the space angle of the puncture needle inlet sleeve is determined by the simulated needle inlet model. The distance from the conventional puncture cannula opening to the auxiliary needle inserting plane is 2 cm. The functions are as follows: after the sterilized needle inserting metal sheath is arranged in the needle inserting sleeve, a needle inserting path can be limited to assist in positioning.
Auxiliary needle insertion plane 9: the bottom of the needle insertion sleeve is an auxiliary needle insertion plane, a fan-shaped gap is arranged on the auxiliary needle insertion plane and is closely adjacent to the sleeve, the target intercostal space position and the needle insertion condition can be determined in an auxiliary mode, and skin can be disinfected and locally anesthetized through the gap.
Collarbone upper edge identification device 1: the two sides are symmetrical, the personalized customization is realized, and the position structure is consistent with the front upper edges of the clavicles at the two sides. The functions are as follows: the position of the upper edge of the clavicle is determined, and the upper end of the guide plate is fixed during preoperative positioning.
Sternal fossa identification device 2: the upper edge of the main body 21 is concave downwards, so that the suprasternal fossa can be identified conveniently. The functions are as follows: determining the position of the suprasternal fossa and assisting in fixing the guide plate.
Front median line recognition device 3: the main body 21 has a longitudinal rectangular hollow structure in the center, and the position of the longitudinal rectangular hollow structure corresponds to a mark line on the skin of the patient, which marks the front center line. The functions are as follows: and determining a front median line and fixing the position of the guide plate.
Sternal angle identification device 4: the center of the main body 21 is deviated from a transverse rectangular hollow structure, and the position of the transverse rectangular hollow structure corresponds to a mark line for marking the sternum angle on the skin of a patient. The functions are as follows: the sternal angular position is determined.
Xiphoid process recognition device 5: the lower edge of the main body 21 is concave upwards, so that the xiphoid process can be conveniently identified. The functions are as follows: and determining the position of the xiphoid process and assisting in fixing the lower edge of the guide plate.
Rib-arch identifying device 6: the two sides of the device are symmetrically in a shape of Chinese character 'ba', the two sides are bent to the lower part of the lateral thorax at a certain angle, the device is customized according to the scanned image of a patient, and the lower edge of the device is consistent with the lower edge of the rib arch. The functions are as follows: the position of the costal arch is determined, and the lower end of the guide plate is fixed during the preoperative positioning.
Connecting arm 7: extends to the side from the collarbone upper edge identification device 1 in the auxiliary positioning assembly until being connected with the puncture needle inserting assembly and clings to the surface of the thorax. The functions are as follows: connect auxiliary positioning subassembly and puncture needle inserting subassembly, fixed baffle structure.
In the actual operation process, the device increases discernment body surface bony nature sign subassembly on original 3D prints preceding operation location baffle basis. The bony marks for identification include the anterior upper edges and gaps of the clavicles on both sides, the suprasternal fossa, the sternal angle, the anterior midline, the xiphoid process and the costal arches on both sides, so that the accuracy of preoperative positioning by using the guide plate can be improved.
The embodiment utilizes the 3D who designs based on body surface mark to print baffle device and carries out the location of lung nodule, and its specific step includes:
And then designing a corresponding guide plate auxiliary positioning component on the body surface based on the thoracic bone markers (suprasternal fossa, sternal angle, anterior-posterior median line, bilateral costal arches and the like) of the patient.
Then, a connecting arm of the puncture needle inserting component and the auxiliary positioning component is designed along the body surface of the patient.
And then modifying and perfecting the structure of the guide plate, and adding information such as the name of the patient, the needle insertion depth and the like in the blank. And (3) performing stereolithography printing on the liquid photosensitive resin to obtain the solid guide plate structure.
And 4, finishing positioning: and if the distance between the needle inserting path of the puncture needle and the target nodule is not more than 2cm, determining that preoperative positioning is successful. And releasing the steel wire in the needle core of the positioning puncture needle, pulling out the puncture needle, gently taking down the guide plate, covering sterile gauze at the needle insertion position and fixing to complete positioning.
The clinical application of the 3D printing guide plate device for assisting the percutaneous pre-pneumopuncture positioning of the patient in the horizontal position based on the body surface markers in the first embodiment is provided.
One male patient is 72 years old, one of the upper lobes of the left lung is grinded into one vitreous nodule by physical examination, and the puncture positioning before the operation is planned. A pre-operative CT scan image of the patient was derived (see fig. 5-a), and three-dimensional reconstruction was performed using the micsresearch20.0 software, as shown in fig. 4. And (3) simulating an initial needle insertion path by using a cylindrical model, determining that the needle insertion path avoids the ribs and inserts the needle from a position close to the middle of a intercostal space, wherein the body surface projection of a pulmonary nodule is positioned between the second rib and the third rib on the midline of the clavicle on the left side, and the needle is inserted from the anterior chest wall on the left side in a horizontal position.
A draft of the guide plate device is drawn by using MimicsResearch20.0 software, an auxiliary positioning component main body and upper and lower edge structures which are arranged on the main body and distributed in an X-shaped structure are attached to the chest wall of a patient, and a puncture needle inserting component at the side part is connected through a connecting arm; the auxiliary positioning component main body is provided with identification devices of the upper edges and gaps of clavicles at two sides, suprasternal fossa, sternal angle, anterior median line and xiphoid processes at two sides, which are designed according to the thoracic bone markers from top to bottom, and the puncture needle insertion component is positioned on a D-shaped structure part extending outwards from the auxiliary positioning component main body; the puncture point of the nodule on the surface of the body is taken as a needle insertion point, the connecting line between the puncture point and the nodule is taken as a needle insertion angle, the distance from the deep part of the target puncture needle channel to the outer opening of the puncture needle assembly is taken as the needle insertion depth, and a puncture needle channel and a metal needle insertion sheath tube are designed. And after all the designs are finished, generating a three-dimensional digital model file. And importing the generated three-dimensional digital model into a printer driver, performing layered analysis and internal structure calculation, and printing the positioning auxiliary device model before the percutaneous lung puncture by using a hot melting layered accumulation method by using liquid photosensitive resin as a 3D printing raw material. The printed preoperative positioning auxiliary device is integrally sterilized by epoxy ethane in a hospital supply room and then packaged in a sterile bag for later use, and the needle insertion metal sheath tube is sterilized at high temperature and high pressure and then packaged in the sterile bag for later use.
The patient lies on the CT machine examining table, the thorax is fully exposed, and the positions of the suprasternal fossa, the sternal angle and the anterior median line of the patient are marked by the assistant with a marker pen; take out the device in from aseptic bag, put the baffle according to the body surface sign, the order patient breathes deeply and confirms baffle and patient's thorax laminating, and a finger is confirmed through puncture needle inlet hole side fan-shaped breach and is just to the intercostal clearance next, then uses the fixed baffle of sticky tape. The body surface recognition devices are accurately positioned by the examination of the thoracic surgeon, and the placement of the guide plates is not influenced by abnormal external force; the thoracic surgeon checks the patient information and confirms the depth of the needle insertion; the ideal position of the guide plate is determined by the first CT scan, and the guide plate is suitable for needle insertion, as shown in figure 5-B. An assistant carries out routine preoperative disinfection along a fan-shaped area beside a puncture needle inserting pore passage, a thoracic surgeon takes sterile gloves, takes out a needle inserting metal sheath from a sterile package, puts the needle inserting metal sheath into a puncture cannula, takes one puncture positioning needle, firstly punctures the subcutaneous tissue, then orders a patient to deeply inhale, and quickly inserts the needle to a target depth along the pore passage at the center of the metal needle inserting sheath. The positioning hook is released, the puncture needle is pulled out, and then the second CT scanning (figure 5-C) is carried out to confirm that the puncture hook is within the range of 2cm from the nodule, the needle inserting path is accurate, the positioning requirement before the percutaneous lung puncture is met, and the positioning operation before the percutaneous lung puncture is successful. The guide plate is taken down and covered with sterile gauze. After the preoperative positioning is finished and the complication-free performance is observed for half an hour, the patient is sent back to a ward to wait for the operation. And a second CT scan.
Example two
The embodiment is a structure of a 3D printing guide plate device for assisting percutaneous lung puncture biopsy based on body surface markers. This device is applied to patients taking a lateral position for a needle biopsy from the back and partly from a lateral needle insertion.
As shown in figures 2 and 3, the device is integrally formed by adopting a 3D printing technology and mainly comprises an auxiliary positioning component 20, a connecting groove 30, a puncture needle inserting component 10, a connecting arm 7 and a rear connecting arm 12. The auxiliary positioning assembly is composed of a front part and a rear part which are connected through a connecting groove 30. The front structure is similar to the structure of the auxiliary positioning assembly for the patient in the horizontal position, and comprises a main body and upper and lower edge structures which are arranged on the main body and distributed in an X-shaped structure, and the whole body is bent inwards; from top to bottom, on the main body 21 are a suprasternal fossa identification device 2, a front median line identification device 3, a sternal angle identification device 4 and a xiphoid process identification device 5, respectively; the clavicle upper edge identification device 1 is positioned on the upper edge structure and is bilaterally symmetrical; on the lower edge structure are bilaterally symmetrical rib bow identification means 6.
The rear structure of the auxiliary positioning assembly comprises a rear main body 22 and a rear connecting arm 12 of a triangular structure connecting the rear structure and the front structure, and a rear median line identification device 11 is arranged in the center of the main body. The front and rear auxiliary positioning components are fastened and fixed by the connecting groove 30.
Puncture needle insertion cannula 8: the design flow is consistent with the design of a guide plate puncture needle insertion sleeve for preoperative positioning of a horizontal position.
Auxiliary needle insertion plane 9: the bottom of the needle insertion sleeve is an auxiliary needle insertion plane, a fan-shaped notch is arranged on the needle insertion sleeve, the fan-shaped notch is closely adjacent to the sleeve, and the function of the fan-shaped notch is consistent with that of the auxiliary needle insertion plane designed for preoperative positioning.
The structure and the function of the clavicle upper edge recognition device 1, the suprasternal fossa recognition device 2, the anterior median line recognition device 3, the sternum corner recognition device 4, the xiphoid process recognition device 5, the costal arch recognition device 6, the auxiliary positioning component and the puncture needle insertion component connecting arm 7 are consistent with those of the corresponding preoperative positioning device.
Posterior midline recognition device 11: the auxiliary positioning component is provided with a longitudinal rectangular hollow structure in the front of the main body of the rear structure, and the position of the longitudinal rectangular hollow structure corresponds to the rear median line marked according to the spinous process of the spine of the patient. The functions are as follows: and determining a rear median line and fixing the position of the guide plate.
In the actual operation process, the device increases discernment body surface bony nature sign subassembly on original 3D prints preceding operation location baffle basis. The bony marks for identification include anterior superior edges and gaps of clavicles on both sides, suprasternal fossa, sternal angle, anterior median line, xiphoid process, costal arches on both sides and posterior median line, thereby improving the accuracy of percutaneous lung aspiration biopsy using the guide plate.
Utilize the 3D who provides based on body surface mark design to print guide plate device to carry out percutaneous lung aspiration biopsy, the patient is got the lateral decubitus puncture by the back or part, and its concrete step includes:
Application example two
The clinical application of the 3D printing guide plate device for assisting the percutaneous lung puncture biopsy of the lateral recumbent patient based on the body surface markers is described in the second embodiment.
One male patient is 69 years old, the soft tissue mass of the left lung inferior lobe is found by physical examination, the malignancy is possible, and the pathological subtype is determined by the skin-skin lung puncture biopsy. CT scan images of the patient (see fig. 8-a) were derived and reconstructed three-dimensionally using the micsresearch20.0 software, as shown in fig. 6 and 7. And (3) simulating an initial needle insertion path by using a cylindrical model, determining that the needle insertion path avoids the ribs and inserts the needle from the middle part close to the intercostal space, wherein the needle insertion duct is positioned between the seventh rib and the eighth rib on the left side, and the needle is inserted from the chest wall on the left side in the lateral decubitus position.
The method comprises the following steps of drawing a draft of the guide plate device by using MimicrosReech 20.0 software, wherein an auxiliary positioning assembly of the draft comprises a front part and a rear part, a front part structure of the draft comprises a center main body and upper and lower edge structures which are arranged on the main body and distributed in an X-shaped structure, a rear part structure of the draft comprises the center main body and a triangular connecting arm arranged beside the main body, the front part and the rear part are buckled and connected through a groove and are attached to the chest wall of a patient, and a puncture needle-inserting assembly is positioned at the extending position of the connecting arm; the front main body of the auxiliary positioning component is provided with identification devices of the upper edges and gaps of clavicles at two sides, suprasternal fossa, sternal angle, anterior median line and xiphoid processes at two sides, which are designed according to the thoracic bone markers, from top to bottom, and the center of the rear main body is provided with a posterior median line identification device. The puncture point of a cylindrical model simulating a needle insertion hole channel on the surface of a body is taken as a needle insertion point, a connecting line between the needle insertion point and the puncture point is taken as a needle insertion angle, and the distance from the deep part of a target puncture needle insertion channel to the outer opening of a puncture needle insertion assembly is taken as a needle insertion depth, so that the puncture needle insertion hole channel and a metal needle insertion sheath tube are designed. And after all the designs are finished, generating a three-dimensional digital model file. And importing the generated three-dimensional digital model into a printer driver, performing layered analysis and internal structure calculation, and printing the positioning auxiliary device model before the percutaneous lung puncture by using a hot melting layered accumulation method by using liquid photosensitive resin as a 3D printing raw material. The printed preoperative positioning auxiliary device is integrally sterilized by epoxy ethane in a hospital supply room and then packaged in a sterile bag for later use, and the needle insertion metal sheath tube is sterilized at high temperature and high pressure and then packaged in the sterile bag for later use.
The patient lies on the side on the CT machine examination bed, the thorax is fully exposed, and the positions of the suprasternal fossa, the sternal angle, the anterior median line and the posterior median line of the patient are marked by an assistant with a marker pen; the device is taken out of the sterile bag, the front part and the rear part are connected, the guide plate is placed from the front part according to the body surface mark, the position of the guide plate is confirmed through the rear median line, the patient is ordered to inhale deeply to confirm that the guide plate is attached to the thorax, then a finger confirms that the puncture hole is opposite to the target intercostal space through the fan-shaped notch beside the puncture needle inserting hole, and then the guide plate is fixed by using an adhesive tape. The body surface recognition devices are accurately positioned by examining by a physician, and the arrangement of the guide plate is not influenced by abnormal external force; the physician checks the information of the patient and confirms the depth of the needle insertion; the ideal position of the guide plate is determined by the first CT scan, and the guide plate is suitable for needle insertion, as shown in figure 8-B. An assistant carries out routine preoperative disinfection along a fan-shaped area beside a puncture needle inserting hole, a thoracic surgeon carries sterile gloves, subcutaneous local anesthesia is firstly carried out, then a needle inserting metal sheath tube is taken out from a sterile package and placed into a puncture cannula, one puncture biopsy needle is taken out, the subcutaneous part is firstly inserted, then a patient is ordered to deeply inhale, and the needle is quickly inserted to the target depth along the hole in the center of the metal needle inserting sheath tube. Then, the second CT scan (as shown in figure 8-C) is carried out to confirm that the needle inserting path is accurate, and the biopsy needle hits the target tumor mass and meets the requirements of needle biopsy. Then the physician takes out the biopsy needle core, connects with a 50ml syringe and applies certain negative pressure to suck the tumor cast-off cells, and after the tumor tissue fluid with the target amount is sucked, the biopsy needle core is quickly pulled out together with the puncture needle, and meanwhile, sterile gauze is covered. The aspirated tumor tissue may be smeared or embedded for liquid-based cytology. After the puncture biopsy is finished and no complication appears for half an hour, the patient is returned to the ward.
According to the above embodiment, the utility model provides a 3D prints baffle device based on supplementary percutaneous lung puncture of body surface mark increases discernment body surface bony landmark subassembly on original 3D prints supplementary puncture baffle basis for the bony landmark of discernment includes that both sides collar clavicle are preceding to go up reason and clearance, sternal suprafossa, sternal angle, preceding median line, xiphoid process, both sides costal arch and back median line. By adding the bony sign recognition device, the influence of the dynamic factor of lung respiratory motion is reduced, the accuracy of preoperative positioning by using the guide plate can be improved, the preoperative positioning of lung nodules and percutaneous lung puncture biopsy can get rid of the dependence on CT scanning in the future, and the radiation dose of a patient is reduced.
The above detailed description of the embodiments of the present invention is only for exemplary purposes, and the present invention is not limited to the above described embodiments. Any equivalent modifications and substitutions to those skilled in the art are also within the scope of the present invention. Accordingly, variations and modifications in equivalents may be made without departing from the spirit and scope of the invention, which is intended to be covered by the following claims.
Claims (12)
1. The utility model provides a 3D prints baffle device based on supplementary percutaneous lung puncture of body surface sign, a serial communication port, the device adopts 3D printing technique integrated into one piece, and its assistance-localization real-time subassembly (20), puncture needle insertion subassembly (10) and linking arm (7) are constituteed, wherein:
the auxiliary positioning assembly (20) comprises a main body (21) and upper and lower edge structures which are arranged on the main body (21) and distributed in an X-shaped structure, and the whole body is bent inwards; from top to bottom, a suprasternal fossa recognition device (2), a front median line recognition device (3), a sternal angle recognition device (4) and a xiphoid process recognition device (5) are respectively positioned on the main body (21); the clavicle upper edge recognition device (1) is positioned on the upper edge structure and is bilaterally symmetrical; the rib bow recognition device (6) is positioned on the lower edge structure and is symmetrical on two sides;
the connecting arm (7) is of a D-shaped structure extending outwards from the main body (21);
the puncture needle inserting assembly (10) comprises a puncture needle inserting sleeve (8) and an auxiliary needle inserting plane (9) and is attached to the thorax.
2. A body surface marker-based 3D-printed guide plate device for assisted percutaneous lung puncture according to claim 1, wherein the puncture needle assembly (10) is located in the upper right corner of the connecting arm (7) when the needle is inserted from the front or partially from the side.
3. The 3D printing guide plate device for assisting percutaneous lung puncture based on body surface markers is characterized by further comprising a rear structure buckled and fixed with the connecting arms (7) through connecting grooves (30) when a needle is inserted from the side or the rear part, wherein the rear structure comprises a rear main body (22), triangular rear connecting arms (12) formed by outwards extending the rear main body (22) and a rear median line identification device (11) positioned in the middle of the rear main body (22);
the puncture needle-inserting component (10) is positioned at the part of the bevel edge of the rear connecting arm (12) extending to the lateral part of the thorax.
4. The 3D printing guide plate device for assisting percutaneous lung puncture based on body surface markers is characterized in that the puncture needle inserting sleeve (8) is matched with a needle inserting sheath to be used, and the angle and the length of the puncture needle inserting sleeve are designed according to a needle inserting path; the auxiliary needle inserting plane (9) is positioned at the bottom of the puncture needle inserting sleeve (8), is provided with a fan-shaped gap and is closely adjacent to the puncture needle inserting sleeve (8), can assist in determining the position of a target intercostal space and positioning the needle inserting condition, and can disinfect and locally anaesthetize the skin through the gap.
5. The 3D printing guide plate device for assisting percutaneous lung puncture based on body surface markers is characterized in that the position structure of the clavicle upper edge identification device (1) is consistent with the clavicle anterior upper edges on two sides.
6. The 3D printing guide plate device for assisting percutaneous lung puncture based on body surface markers is characterized in that the suprasternal fossa identification device (2) is concave downwards to determine the position of the suprasternal fossa and assist in fixing the guide plate.
7. The 3D printing guide plate device for assisting percutaneous lung puncture based on body surface markers is characterized in that the front median line identification device (3) is a longitudinal rectangular hollow structure in the center of the main body (21), and the position of the longitudinal rectangular hollow structure corresponds to a mark line on the skin for marking the median line of the sternum.
8. The 3D printing guide plate device for assisting percutaneous lung puncture based on body surface markers is characterized in that the sternum angle identification device (4) is a transverse rectangular hollow structure which is positioned right above the center of the main body (21) and corresponds to a mark line for marking the sternum angle on the skin.
9. The 3D printing guide plate device for assisting percutaneous lung puncture based on body surface markers is characterized in that the xiphoid process identification device (5) is located on the lower edge of the main body (21), is concave upwards, and assists in fixing the lower edge of the guide plate device.
10. The 3D printing guide plate device for assisting percutaneous lung puncture based on the body surface markers is characterized in that the costal arch recognition device (6) is symmetrically shaped like a Chinese character 'ba' from two sides and is bent to the lower part of the thorax at a certain angle, and the lower edge of the costal arch recognition device (6) is customized according to the scanned image and is consistent with the position of the lower edge of the costal arch.
11. A3D printing guide plate device for assisting percutaneous lung puncture based on body surface markers, as claimed in claim 3, wherein the posterior midline recognition device (11) is a longitudinal rectangular hollow structure in the middle of the rear body (22), and the position of the longitudinal rectangular hollow structure corresponds to the position of the posterior midline marked according to the spinous process of the spine.
12. The 3D printing guide plate device for assisting percutaneous lung puncture based on body surface markers, according to claim 1, wherein the 3D integrally printed material is selected from metal, ABS resin, photosensitive resin, polylactic acid, polyvinyl alcohol or nylon.
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| CN202020308362.8U CN212415853U (en) | 2020-03-12 | 2020-03-12 | 3D prints baffle device based on supplementary percutaneous lung puncture of body surface sign |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113244518A (en) * | 2021-07-06 | 2021-08-13 | 真实维度科技控股(珠海)有限公司 | Non-coplanar puncture template based on multi-point positioning |
| CN113244516A (en) * | 2021-07-05 | 2021-08-13 | 真实维度科技控股(珠海)有限公司 | Non-coplanar puncture template manufacturing method based on bony multipoint positioning and template |
-
2020
- 2020-03-12 CN CN202020308362.8U patent/CN212415853U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113244516A (en) * | 2021-07-05 | 2021-08-13 | 真实维度科技控股(珠海)有限公司 | Non-coplanar puncture template manufacturing method based on bony multipoint positioning and template |
| CN113244516B (en) * | 2021-07-05 | 2021-10-08 | 真实维度科技控股(珠海)有限公司 | Non-coplanar puncture template manufacturing method based on bony multipoint positioning and template |
| CN113244518A (en) * | 2021-07-06 | 2021-08-13 | 真实维度科技控股(珠海)有限公司 | Non-coplanar puncture template based on multi-point positioning |
| CN113244518B (en) * | 2021-07-06 | 2021-10-08 | 真实维度科技控股(珠海)有限公司 | Non-coplanar puncture template based on multi-point positioning |
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