Fixing device for preventing newborn leg and foot deformity and manufacturing method thereof

Abstract

The invention relates to the technical field of medical instruments in the orthopedics department, and discloses a fixing device for preventing leg and foot deformity of newborns and a manufacturing method thereof.The fixing device comprises double-layer TPU foamed cotton and a connecting hose, and a coagulator runner used for coagulator flowing is formed in the double-layer TPU foamed cotton; the connecting hose is fixedly communicated with the upper side of the double-layer TPU foamed cotton and is used for filling a coagulator into the double-layer TPU foamed cotton, a coagulator filling bottle cap used for sealing a pipe opening of the connecting hose is additionally arranged outside the pipe opening of the connecting hose, and a flow stopping clamp used for improving the sealing effect and preventing coagulated liquid from flowing out is additionally arranged outside the connecting hose. The fixing splint can be independently operated by a trained person without multiple persons or doctors with higher professional skills, X-shaped or O-shaped leg and congenital foot deformity can be prevented and corrected at the same time through the fixing splint, meanwhile, the structural shape of the fixing splint conforms to the ergonomic design, and the comfort of a user can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of orthopedic medical devices, and in particular to a fixing device for preventing leg and foot deformities in newborns and a manufacturing method thereof. Background Art

[0002] Leg deformities are caused by the incorrect angles of bone growth during growth and development, which do not conform to the physiological angles. Common examples include O-shaped legs, also known as genu valgum, and X-shaped legs, also known as genu valgum. Leg deformities need to be corrected in a timely manner, so special fixation devices are used to prevent leg deformities.

[0003] At present, the common methods for correcting leg deformities are generally through splints, leg wraps, braces, and plasters. When splints, leg wraps, and braces are used for correction, the fixation operation is more troublesome. When plaster is used for correction, the operator is required to have a high level of medical expertise. For this reason, we provide a fixation device for preventing leg and foot deformities in newborns and a method for making the same. Summary of the invention

[0004] In order to solve the problem that the existing leg deformity correction devices in the above background technology are generally not convenient for quick and anytime use, the present invention provides a fixation device for preventing leg and foot deformities in newborns and a manufacturing method thereof.

[0005] The present invention is implemented by the following technical solution: a fixing device for preventing leg and foot deformities in newborns, comprising: A double-layer TPU foam, wherein the upper portion of the double-layer TPU foam is an isosceles trapezoidal portion, the lower portion of the double-layer TPU foam is an irregular-shaped portion symmetrically arranged and is designed as an integrated structure with the isosceles trapezoidal portion, a notch is arranged between the two groups of irregular-shaped portions at the lower portion of the double-layer TPU foam, and a coagulant flow channel for the flow of a coagulant is arranged inside the double-layer TPU foam; A connecting hose is fixedly connected to the upper side of the double-layer TPU foam and is used to inject coagulant into the interior of the double-layer TPU foam. A coagulant injection bottle cap for sealing the connecting hose mouth is provided on the outside of the connecting hose. A stop clamp is provided on the outside of the connecting hose to improve the sealing effect and prevent the coagulant liquid from flowing out.

[0006] As a further improvement of the above solution, the double-layer TPU foam is sealed by hot-melt sealing to ensure the sealing effect.

[0007] As a further improvement of the above solution, the double-layer TPU foam is provided with a hollow portion for increasing air permeability.

[0008] As a further improvement of the above solution, the upper and lower parts of the inner cavity of the isosceles trapezoidal portion are both provided with long bent forming wires, and two groups of short bent forming wires are symmetrically provided inside the rectangular structures similar to the two groups of irregular shaped portions.

[0009] As a further improvement of the above solution, the double-layer TPU foam cotton adopts breathable TPU foam cotton to ensure the breathable effect.

[0010] As a further improvement of the above solution, the inner side of the double-layer TPU foam is provided with a TPU inner film.

[0011] As a further improvement of the above scheme, the flow stop clamp includes an extrusion end and an elastic movable end. The flow stop clamp is also provided with latch teeth at equal intervals, and the top end of the elastic movable end is latched into the latch teeth to facilitate positioning of the elastic movable end.

[0012] As a further improvement of the above solution, the outside of the bottle cap where the coagulant is poured is provided with anti-slip patterns for increasing friction.

[0013] As a further improvement of the above solution, the angle of the double-layer TPU foam after bending is 120°.

[0014] A method for manufacturing a fixation device for preventing leg and foot deformities in newborns, comprising the following steps: S1. Cut the double-layer TPU foam into the required shape, that is, the upper part is an isosceles trapezoidal structure, the lower part is two groups of symmetrical irregular shapes, and the corners of the shape are arcs; S2. Place the connecting hose on the mold between the TPUs, and then connect and fix it with the coagulant flow channel inside the double-layer TPU foam by hot melting; S3, bending the two groups of irregular-shaped parts at the bottom of the double-layer TPU foam inward at the same time and hot-melting the edges of the two parts together; S4, inserting two groups of long bending forming wires and two groups of short bending forming wires into corresponding positions of the isosceles trapezoidal part and the irregular shape part of the double-layer TPU foam, and then hot-melt welding them; S5, placing the device after three hot melting processes into a mold for punching and trimming; S6. Insert the stop clamp onto the connecting hose and glue the bottle cap to the outside of the hose inlet.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The structure and shape of the present invention conform to ergonomic design and can increase the comfort of users.

[0016] 2. The present invention can be completed independently by a trained person, without the need for multiple people or doctors with superb professional skills to operate, and the fixation splint can simultaneously prevent and correct X- or O-shaped legs and congenital foot deformities.

[0017] 3. The fixing splint material of the present invention is internally made of TPU film and externally made of TPU foam, which has no side effects on the user's skin. In addition, the double-layer TPU foam is provided with multiple hollows to increase air permeability, making it easy to fix on the skin surface for a long time without causing adverse effects such as skin itching and ulceration. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a front view structural schematic diagram of the present invention; Figure 2 It is a front view structural schematic diagram of the present invention; Figure 3 It is a schematic diagram of the structure of the flow stop clamp of the present invention; Figure 4 This is a schematic diagram of the three-dimensional structure after secondary hot melting of the present invention; Figure 5 It is a schematic diagram of the three-dimensional structure after bending forming of the present invention.

[0019] Description of main symbols: 1. Double-layer TPU foam; 101. Isosceles trapezoidal portion; 102. Irregular shaped portion; 103. Notch; 2. Coagulant flow channel; 3. Connecting hose; 4. Coagulant is poured into the bottle cap; 5. Stop clamp; 6. Hollow part; 71. Long bending forming wire; 72. Short bending forming wire; 501. Extrusion end; 502. Elastic movable end; 503. Tooth. DETAILED DESCRIPTION

[0020] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment. Example 1

[0021] Please combine Figure 1-5 , a fixation device for preventing leg and foot deformities in newborns according to this embodiment comprises: A double-layer TPU foam 1, wherein the upper portion of the double-layer TPU foam 1 is an isosceles trapezoidal portion 101, and the lower portion of the double-layer TPU foam 1 is an irregularly shaped portion 102 symmetrically arranged and integrated with the isosceles trapezoidal portion 101. A notch 103 is arranged between the two groups of irregularly shaped portions 102 at the lower portion of the double-layer TPU foam 1, and a coagulant flow channel 2 for the flow of a coagulant is arranged inside the double-layer TPU foam 1; A connecting hose 3 is fixedly connected to the upper side of the double-layer TPU foam 1 and is used to inject a coagulant into the inside of the double-layer TPU foam 1. A coagulant injection bottle cap 4 for sealing the connecting hose 3 is provided on the outside of the connecting hose 3. A stopper 5 for improving the sealing effect and preventing the coagulant from flowing out is provided on the outside of the connecting hose 3. The double-layer TPU foam 1 is sealed by hot melt to ensure the sealing effect. A hollow part 6 for increasing air permeability is provided on the double-layer TPU foam 1. Long bending forming wires are provided on the upper and lower parts of the inner cavity of the isosceles trapezoidal part 101. 71, two groups of short bending forming wires 72 are symmetrically arranged inside the rectangular structure similar to the two groups of irregular shaped parts 102, the inner side of the double-layer TPU foam 1 is provided with a TPU inner membrane, the flow-stop clamp 5 includes an extrusion end 501 and an elastic movable end 502, and the flow-stop clamp 5 is also equidistantly provided with latch teeth 503, and the top of the elastic movable end 502 is inserted into the latch teeth 503 to facilitate positioning of the elastic movable end 502, and the outside of the coagulant injection bottle cap 4 is provided with anti-slip patterns for increasing friction, and the angle of the double-layer TPU foam 1 after bending and forming is 120°.

[0022] A method for manufacturing a fixation device for preventing leg and foot deformities in newborns, comprising the following steps: The first step is to cut the double-layer TPU foam 1 into a desired shape, that is, the upper part is an isosceles trapezoidal structure, the lower part is two groups of symmetrical irregular shapes, and the corners of the shape are arcs; Step 2: Place the connecting hose 3 on the mold between the TPUs, and then connect and fix it with the coagulant flow channel 2 inside the double-layer TPU foam 1 by hot melting; Step 3: bend the two groups of irregular-shaped portions 102 at the lower part of the double-layer TPU foam 1 inward at the same time and connect the edges of the two portions together by hot-melting; Step 4: insert two groups of long bending forming wires 71 and two groups of short bending forming wires 72 into corresponding positions of the isosceles trapezoidal portion 101 and the irregular shape portion 102 on the double-layer TPU foam 1, and then perform hot-melt welding on them; Step 5: Place the device after three hot melts into the mold for punching and trimming; Step 6: Insert the stop clamp 5 onto the connecting hose 3 and glue the bottle cap to the outside of the hose filling port with glue.

[0023] The implementation principle of a fixing device for preventing leg and foot deformities in newborns and its manufacturing method in the embodiment of the present application is as follows: during the manufacturing process, first cut the double-layer TPU foam 1 into the required shape, that is, the upper part is an isosceles trapezoidal structure, and the lower part is two groups of symmetrical irregular shapes, and the corners of the shape are arcs, and then place the connecting hose 3 on the mold between the TPU and connect and fix it with the coagulant flow channel 2 inside the double-layer TPU foam 1 by hot melting, and then bend the two groups of irregular shaped parts 102 at the lower part of the double-layer TPU foam 1 inward at the same time and hot-melt the edges of the two together, and then insert two groups of long bending forming wires 71 and two groups of short bending forming wires 72 into the corresponding positions of the isosceles trapezoidal part 101 and the irregular shaped part 102 on the double-layer TPU foam 1 respectively, and then hot-melt weld them, and then put the device after three hot melting into the mold for punching and cutting, and finally introduce the stop clamp 5 into the connecting hose 3, and glue the bottle cap to the outside of the hose filling port.

[0024] When in use, first pour the coagulant into the bottle cap 4 and remove it, then mix the solidifying liquid and add it into the double-layer TPU foam 1 through the connecting hose 3, the solidifying liquid will flow to every corner along the coagulant flow channel 2, then press the elastic movable end 502 to approach the extrusion end 501, and the top of the elastic movable end 502 is inserted into the latch tooth 503, so that the connecting hose 3 can be squeezed to prevent the solidifying liquid from flowing out, and then the device is wrapped at the corresponding leg and foot position and the fixed splint is folded into the corresponding shape Under the action of the built-in long bending forming wire 71 and the short bending forming wire 72, after the coagulant solidifies, a clamping fixture folded into a desired shape can be formed, so as to facilitate the prevention and correction of X-shaped or O-shaped legs and congenital foot deformities. The hollow part 6 can increase the air permeability and facilitate long-term fixation on the skin surface without causing adverse effects such as skin itching and ulceration. The overall structure of the device conforms to the ergonomic design. The angle of the double-layer TPU foam 1 after bending is 120°. Figure 2 .

[0025] In order to ensure that the curing time and hardness of the curing liquid reach the ideal effect, the formula and proportion of the curing liquid of the present invention are as follows: A glue: composed of aliphatic diisocyanate, trimethylpentanediol isobutyl ester (plasticizer), poly (ether) propylene glycol in a weight ratio of 3:1:3; B glue: special polyurethane (PU) catalyst, composed of butyl titanate, dibutyl laurate tin and cobalt isooctanoate in a weight ratio of 1:2:2. Ratio: weight A / B = 1.8:1. Example 2

[0026] Based on Example 1, this embodiment is further improved in that: the double-layer TPU foam cotton 1 uses breathable cotton that ensures a breathable effect, which can increase the air permeability of the device.

[0027] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A fixation device for preventing leg and foot deformities in newborns, characterized in that: include: A double-layer TPU foam (1), wherein the upper portion of the double-layer TPU foam (1) is an isosceles trapezoidal portion (101), the lower portion of the double-layer TPU foam (1) is an irregularly shaped portion (102) which is symmetrically arranged and is designed as an integral structure with the isosceles trapezoidal portion (101), a notch (103) is arranged between the two groups of irregularly shaped portions (102) at the lower portion of the double-layer TPU foam (1), and a coagulant flow channel (2) for the flow of a coagulant is arranged inside the double-layer TPU foam (1); A connecting hose (3) is fixedly connected to the upper side of the double-layer TPU foam cotton (1) and is used to inject a coagulant into the double-layer TPU foam cotton (1). A coagulant injection bottle cap (4) for sealing the connecting hose (3) is provided on the outside of the connecting hose (3). A stopper clamp (5) is provided on the outside of the connecting hose (3) to improve the sealing effect and prevent the coagulant from flowing out.

2. A fixation device for preventing leg and foot deformities in newborns as claimed in claim 1, characterized in that: The double-layer TPU foam (1) is sealed by hot-melt to ensure a sealing effect.

3. A fixation device for preventing leg and foot deformities in newborns as claimed in claim 1, characterized in that: The double-layer TPU foam (1) is provided with a hollow portion (6) for increasing air permeability.

4. A fixation device for preventing leg and foot deformities in newborns as claimed in claim 1, characterized in that: The upper and lower parts of the inner cavity of the isosceles trapezoidal portion (101) are both provided with long bent forming wires (71), and two groups of short bent forming wires (72) are symmetrically provided inside the rectangular structures similar to those in the two groups of irregular shaped portions (102).

5. A fixation device for preventing leg and foot deformities in newborns as claimed in claim 1, characterized in that: The double-layer TPU foam (1) is made of breathable TPU foam.

6. A fixation device for preventing leg and foot deformities in newborns as claimed in claim 1, characterized in that: The inner side of the double-layer TPU foam (1) is provided with a TPU inner film.

7. A fixation device for preventing leg and foot deformities in newborns as claimed in claim 1, characterized in that: The flow-stopping clamp (5) comprises an extrusion end (501) and an elastic movable end (502). The flow-stopping clamp (5) is also provided with latch teeth (503) at equal intervals. The top end of the elastic movable end (502) is latched into the latch teeth (503) so as to facilitate positioning of the elastic movable end (502).

8. A fixation device for preventing leg and foot deformities in newborns as claimed in claim 1, characterized in that: The outside of the coagulant filling bottle cap (4) is provided with anti-skid patterns for increasing friction.

9. A fixation device for preventing leg and foot deformities in newborns as claimed in claim 1, characterized in that: The angle of the double-layer TPU foam (1) after being bent is 120°.

10. A method for manufacturing a fixation device for preventing leg and foot deformities in newborns as claimed in claims 1 to 9, characterized in that: The following steps are involved: S1. Cutting the double-layer TPU foam (1) into a desired shape, i.e., the upper portion is an isosceles trapezoidal structure, and the lower portion is two groups of symmetrical irregular shapes, and the corners of the shape are arcs; S2, placing the connecting hose (3) on the mold between the TPUs, and then connecting and fixing it with the coagulant flow channel (2) inside the double-layer TPU foam (1) by hot melting; S3, bending the two groups of irregularly shaped parts (102) at the bottom of the double-layer TPU foam (1) inwards at the same time and hot-melting the edges of the two parts together; S4, inserting two groups of long bending forming wires (71) and two groups of short bending forming wires (72) into corresponding positions of the isosceles trapezoidal portion (101) and the irregular shape portion (102) of the double-layer TPU foam (1), and then hot-melt welding them; S5, placing the device after three hot melting processes into a mold for punching and trimming; S6. Insert the stopper clamp (5) onto the connecting hose (3) and glue the bottle cap to the outside of the hose inlet.

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