CN113197717B

CN113197717B - A get type device for infant's head form profile

Info

Publication number: CN113197717B
Application number: CN202110488520.1A
Authority: CN
Inventors: 郭俊超; 王振泽; 樊瑜波
Original assignee: National Research Center for Rehabilitation Technical Aids
Current assignee: National Research Center for Rehabilitation Technical Aids
Priority date: 2021-05-06
Filing date: 2021-05-06
Publication date: 2022-04-08
Anticipated expiration: 2041-05-06
Also published as: CN113197717A

Abstract

A type taking device for an infant head-shaped contour comprises an inner layer structure and an outer layer structure, wherein the inner layer structure comprises a left sheet body and a right sheet body, the left sheet body and the right sheet body are partially overlapped at a joint part, the left sheet body is wrapped at the outer side of the right sheet body at an overlapping part A, an inner long hole is formed in the left sheet body, threads are arranged on the top wall and the bottom wall of the long hole, and a square clamping groove A is formed in the right sheet body, corresponding to the inner long hole, at the overlapping part; the outer layer structure comprises a front sheet body and a rear sheet body, wherein the front sheet body and the rear sheet body are partially overlapped at a joint, the front sheet body is arranged inside the outer rear sheet body at an overlapping part B, an outer long hole is formed at the overlapping part B, threads are formed on the top wall and the bottom wall of the outer long hole, and a clamping groove B is formed on the left sheet body and the right sheet body which respectively correspond to the two outer long holes; the front sheet body and the rear sheet body corresponding to the inner long-strip hole are provided with through holes, the four overlapped parts are respectively screwed with bolts matched with threads, each bolt comprises a nut and a screw rod, each screw rod comprises a thread section and a positioning section, each positioning section is square, and each positioning section is matched with the corresponding clamping groove A, B.

Description

A get type device for infant's head form profile

Technical Field

The invention relates to a type taking device for head contour of an infant, which is mainly used for a patient with head deformity of the infant to take the head contour of the infant.

Background

The orthopedic helmet is mainly applied to infants with cranial deformity, and the cranial deformity is developed between 3 months and 18 months after birth of the infants due to different degrees of abnormities of the front and back positions or the lateral positions of the skull of the infants, dislocation or limitation during growth and development of a brain structure, influence development of multiple regions of the brain, even influence development of nerves and other problems.

Aiming at the problem of skull deformity of infants, at present, there are about two orthopedic products at home and abroad: the first is a pillow with a special shape, which is used for sleeping and lying on a pillow for infants, but the shape correction method completely depends on the shape of the pillow, belongs to a passive type, cannot avoid the sleeping posture of the infants, and cannot ensure and quantify the shape correction effect; the second type is an orthopedic helmet provided by professional institutions, which is mainly used for children with head problems of infants of 4-15 months, and is manufactured manually by using materials such as thermoplastic plates through manual measurement data, but the manual manufacturing has the defects of large subjective error, multiple debugging or lack of theoretical basis during later use, and the like, the children need to return to the professional institutions for reexamination and debugging each time, and the debugging stage completely depends on manual subjective judgment without a quantitative debugging method; the third method for manufacturing the orthopedic helmet is to scan the outline of the head of a patient, and obtain the initial form of the helmet by means of manual debugging, 3D printing technology, male mold molding and the like, but the 3D printed finished product is fixed in shape and difficult to adjust locally, and data acquisition needs to be carried out again.

Disclosure of Invention

The technical problem to be solved by the invention is to provide a shape taking device for the head shape outline of an infant, which improves the convenience and the rapidness for obtaining the head outline of a patient, reduces the manufacturing time of an orthopedic helmet and improves the manufacturing precision of the orthopedic helmet.

In order to solve the technical problems, the invention adopts the following technical scheme:

a get type device for infant's head type outline, should get type device and human normal outline structure match of head type, the length of fore-and-aft direction is greater than the length of left and right directions, and present the symmetrical relation left and right, it includes inner structure and outer structure, the inner structure includes left lamellar body and right lamellar body, the left lamellar body overlaps with the right lamellar body in the part of the junction, overlap A this left lamellar body and press and cover outside this right lamellar body here, offer the inner rectangular hole on this left lamellar body, there are whorls on roof and bottom wall of the rectangular hole, offer the square draw-in groove A on this right lamellar body that overlap A corresponds to this inner rectangular hole; the outer layer structure comprises a front sheet body and a rear sheet body, wherein the front sheet body and the rear sheet body are partially overlapped at a joint, the front sheet body is pressed and covered in the rear sheet body at an overlapping part B, the rear sheet body is covered at the rear parts of the left sheet body and the right sheet body at the same time, an outer long strip hole is formed at the overlapping part B, threads are formed on the top wall and the bottom wall of the outer long strip hole, and a square clamping groove B is formed on the left sheet body and the right sheet body which respectively correspond to the two outer long strip holes; set up the perforation on corresponding the preceding slice of hole and the back slice of this interior rectangular hole, bolt that the spiro union matches with the screw thread respectively in four places of overlapping, this bolt includes nut and screw rod, and this screw rod includes screw thread section and location section, and this location section is located the bottom of screw rod, and this location section is the square, and the size of this location section is less than the diameter of screw rod, and each this location section matches with square draw-in groove A, B that corresponds.

Preferably, the thickness of each sheet is 3mm, and the material is polylactic acid high molecular material or acrylonitrile-butadiene-styrene copolymer.

Preferably, the depth of the square clamping groove A is 2mm, and the depth of the square clamping groove B is 2 mm.

The invention has the beneficial effects that: the shaping device is mainly characterized in that the adjustable helmet is worn to fit the outline of the head shape of a patient to approach the head shape of the patient, so that the deformed part of the head of the patient is fully fitted with the inner surface of the shaping device, the deformation development of the part is limited, the head of the patient grows towards the shape development of the shaping device, and the deformed structure of the head of the patient is effectively improved. The final orthopedic helmet can then be obtained by coating the inner and outer surfaces of the device with low or high temperature thermoplastic sheets, or by three-dimensional scanning of the device morphology. The method can effectively avoid that the infant is not concentrated in attention, cannot be taken out easily due to disorder movement, the accuracy of carrier taking is influenced, and the injury of light to the eyes of the infant when the head of a patient is directly scanned in a three-dimensional mode can be avoided.

Drawings

In order to more clearly explain the embodiments of the present invention, the embodiments will be described below with reference to the accompanying drawings.

Fig. 1 is a schematic view of the structure of a normal human skull.

Fig. 2 is a schematic view of the assembly of the cast device with a deformed skull.

Fig. 3 is a schematic top sectional view of the molding device without bolts.

Fig. 4 is a schematic perspective view of the mold removing device.

Fig. 5 is a schematic view of the structure of the adjusting bolt installed at the overlapping portion.

Fig. 6 is a schematic structural view of the adjusting bolt.

Detailed Description

The following description is given by way of example only, and is not intended to limit the scope of the invention.

The head deformity correction target is an infant of 4-15 months old, the skull shape is abnormal due to asymmetry caused by head shape development or environment, and no body limb structure is symmetrical and beautiful in anthropomorphic physique; functionally, the abnormal shape of the skull of the version leads to abnormal development of internal tissues, such as the problems of small left and right brain volumes, abnormal auditory nerve development, abnormal development of motor areas and the like, and influences the acquired limb functions. Aiming at the problems that the attention of the infant is difficult to concentrate, the stability of limb behaviors such as movement is poor, the stimulation of optical scanning imaging to eyes is too large and the like, the data of the skull outline of the infant in the early stage is difficult to obtain, so that as shown in fig. 1 and fig. 2, the invention provides a device for easily taking the skull outline of the infant in a preferred embodiment, and aims to realize the rapid taking of the shape of the skull of the infant. The specific implementation mode is as follows:

the utility model provides a get type device for infant's head form profile, at first need have the normal profile structure of human head form, and fore-and-aft direction length is slightly greater than left and right direction length, and left and right sides presents the symmetric relation, as shown in figure 1. According to the normal human head shape, when the patient takes the model of the head, a certain standard exists, and fig. 2 shows the assembly relation between the patient head A3 and the model taking device; as shown in fig. 3 to 5, the typing device includes an inner layer structure 1 and an outer layer structure 2, the inner layer structure includes a left sheet 11 and a right sheet 12, the left sheet 11 and the right sheet 12 are partially overlapped at a joint, the overlapping is referred to as an overlapping portion a13, the left sheet 11 covers the outer side of the right sheet 12 at an overlapping portion a13, inner elongated holes 111 are respectively formed at two ends of the left sheet 11, threads are formed on top and bottom walls of the two inner elongated holes 111, square clamping grooves a121 are respectively formed at two ends of the right sheet 12 corresponding to the inner elongated holes at the overlapping portion a13, and the depth of each square clamping groove a is 2 mm; the outer layer structure 2 comprises a front sheet body 21 and a rear sheet body 22, the rear sheet body is coated on the left sheet body, the front sheet body 21 and the rear sheet body 22 are partially overlapped at a joint, the overlapping is called as an overlapping part B14, the front sheet body 21 is coated on the outer side of the rear sheet body 22, the rear sheet body is coated on the rear parts of the left sheet body and the right sheet body, outer long strip holes 23 are formed in the front sheet body and the rear sheet body at two overlapping parts B, threads are formed in the top wall and the bottom wall of each outer long strip hole 23, square clamping grooves B122 are formed in the left sheet body 11 and the right sheet body 12 corresponding to the two outer long strip holes respectively, and the depth of each square clamping groove B is 2 mm; the thickness of each sheet body is 3mm, the material is polylactic acid high molecular material, the material can be directly implanted into a human body or contacted with the skin for use, and the material is also safe for infants; the material of the individual sheets can also be acrylonitrile-butadiene-styrene copolymer. The front sheet body and the rear sheet body corresponding to the inner strip hole 111 are provided with through holes 24, the four threads at the overlapped positions are respectively screwed with the adjusting bolts 3, as shown in fig. 6, each adjusting bolt 3 comprises a nut 31 and a screw rod, the nut 31 is of an inner hexagonal structure, each screw rod comprises a thread section 32 and a positioning section 33, the positioning section 33 is located at the bottom end of the screw rod 32, the positioning section 33 is square, the size of the positioning section is smaller than the diameter of the screw rod, and each positioning section is matched with the corresponding square clamping groove A, B. When the positioning section is adjusted to a proper position, the head of the positioning section is aligned to the notch of the square clamping groove, the positioning section is pushed into the clamping groove through the notch, the bolt is further screwed, and the head of the positioning section is clamped into the square clamping groove to realize positioning.

The inner layer structure 1 can be respectively meshed with the threads of the two overlapped parts A through the front adjusting bolt and the rear adjusting bolt to rotate, so that the left and right shrinkage or expansion can be realized. Similarly, the outer layer structure 2 can be respectively meshed with the thread structures of the two overlapped parts B through the right adjusting bolt and the left adjusting bolt, so that the contraction or expansion in the front-back direction can be realized. The contraction or expansion of the inner and outer layer structures aims to ensure that the surface contour of the inner layer structure of the model-taking device forms a tangent point T with the head model of the patient, and the tangent point is a protruding point of the head malformation and is also the highest point. The gap area between the head form and the inner side structure of the patient is an effective area for the growth of the head form in the future.

The adjustment of the assembly relation of the model taking device and the deformed skull of the infant is realized by rotating the front, the rear, the left and the right adjusting bolts clockwise or anticlockwise to realize tightness, and the model taking of the front, the rear, the left and the right head models can be realized.

After the tightness degree of each overlapped part of the model taking device is adjusted through the four adjusting bolts, the inner layer structure and the outer layer structure of the model taking device are scanned through the universal three-dimensional scanning equipment on the market at present, so that the outline of the malformed head of a patient can be obtained, and the problems that the attention is hard to concentrate, the stability of limb behaviors such as movement is poor, the stimulation of optical scanning imaging to eyes is overlarge and the like are avoided. The method is convenient and effective.

Claims

1. A get type device that is used for infant's head form profile which characterized in that: the shape taking device is matched with a normal outline structure of a human head shape, the length in the front-back direction is greater than that in the left-right direction, the left and right sides of the shape taking device are in a symmetrical relation, the shape taking device comprises an inner layer structure and an outer layer structure, the inner layer structure comprises a left sheet body and a right sheet body, the left sheet body and the right sheet body are partially overlapped at a joint part to form an overlapping part A, the left sheet body is pressed outside the right sheet body at the overlapping part A, an inner long hole is formed in the left sheet body, threads are arranged on the top wall and the bottom wall of the inner long hole, and a square clamping groove A is formed in the right sheet body, corresponding to the inner long hole, at the overlapping part A; the outer layer structure comprises a front sheet body and a rear sheet body, wherein the front sheet body and the rear sheet body are partially overlapped at a joint to form an overlapping part B, the front sheet body is pressed and covered in the rear sheet body at the overlapping part B, the rear sheet body is covered at the rear parts of the left sheet body and the right sheet body, an outer long hole is formed at the overlapping part B, threads are formed on the top wall and the bottom wall of the outer long hole, and a square clamping groove B is formed in the left sheet body and the right sheet body which respectively correspond to the two outer long holes; set up the perforation on corresponding the preceding slice of hole and the back slice of body in this interior rectangular hole, bolt that the spiro union matches with the screw thread respectively in four places of overlapping, this bolt includes nut and screw rod, and this screw rod includes screw thread section and location section, and this location section is located the bottom of screw rod, and this location section is the square, and the radial dimension of this location section is less than the diameter of screw rod, and each this location section matches with square draw-in groove A, B that corresponds.

2. The typing device for the head contour of an infant according to claim 1, wherein: the thickness of each sheet body is 3mm, and the material is polylactic acid high molecular material or acrylonitrile-butadiene-styrene copolymer.

3. The mold extraction device for infant head contour according to claim 1 or 2, characterized in that: the depth of the square clamping groove A is 2mm, and the depth of the square clamping groove B is 2 mm.