CN110897767A - Method for adjusting gypsum female model of artificial limb - Google Patents
Method for adjusting gypsum female model of artificial limb Download PDFInfo
- Publication number
- CN110897767A CN110897767A CN201911318315.XA CN201911318315A CN110897767A CN 110897767 A CN110897767 A CN 110897767A CN 201911318315 A CN201911318315 A CN 201911318315A CN 110897767 A CN110897767 A CN 110897767A
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- CN
- China
- Prior art keywords
- plaster
- stump
- model
- residual limb
- female
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/50—Prostheses not implantable in the body
- A61F2/78—Means for protecting prostheses or for attaching them to the body, e.g. bandages, harnesses, straps, or stockings for the limb stump
- A61F2/80—Sockets, e.g. of suction type
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2240/00—Manufacturing or designing of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2240/001—Designing or manufacturing processes
- A61F2240/002—Designing or making customized prostheses
- A61F2240/004—Using a positive or negative model, e.g. moulds
Abstract
The invention discloses a method for adjusting the shape of a plaster female prosthesis, which comprises the following steps: (1) taking a plaster female model of the stump, and enabling a patient to avoid taking down a preservative film or silk stockings; (2) cutting the mouth shape of the plaster female model according to the size of the stump; cutting two openings at the front and rear parts of the inner side of the stump, and opening 3-5 cm downwards, and opening 5-8 cm from the middle part of the outer side to the stump; (3) sleeving the cut plaster female model back on the residual limb again to ensure that the plaster female model corresponds to the residual limb; (4) and (3) supporting the plaster female model, adducting the residual limb for 5-15 degrees, then reducing the gap at the outer side of the plaster female model, sticking the residual limb at the opening in the middle of the outer side to mark the lap, repairing the model, reducing the girth of the model, and completing the shape adjustment. The invention adjusts the plaster female model according to the adduction gravity line required by the walking of the patient, the stress is uniform and the comfort level is improved after the trial wearing, and the gait is closer to the gait of a normal person.
Description
Technical Field
The invention relates to a manufacturing process of an artificial limb, in particular to a method for adjusting a plaster female model of the artificial limb.
Background
In recent years, the number of amputations due to traffic accidents, natural disasters, cardiovascular diseases, diabetes and other diseases has been increasing. According to the statistics of the main data bulletin of the second national disabled people sampling survey, the total number of various disabled people in China is about 8296 thousands of people, wherein the number of the disabled people is about 2412 thousands of people, the number of the amputated people is about 226 thousands of people, and the number of the amputated people of the lower limbs is large. The artificial limb is an important means for helping the disabled users to recover and return to the society in a way of compensating the form and the function of the limb. The artificial limb mainly comprises three parts, including a support part which simulates the function of a human body and can bear the weight of the human body, a decoration part which simulates the appearance of the human body and an artificial limb receiving cavity which contains the residual limb. With the prosthetic socket being one of the most critical and important components. The socket acts as an interface for the biomechanical transfer between the human and prosthetic systems with which the residual limb is in direct contact. Forces between the body and the prosthesis are transmitted through the interface between the residual limb and the socket. Because the conditions such as the shape of the stump, the muscle strength and the like of each amputee user are different, the receiving cavity can not be produced in batches according to the standard, and the individual design is needed to be carried out according to different people and different stumps.
The design and manufacture method of the artificial limb socket comprises the steps of obtaining the geometric shape of the residual limb of a user by utilizing a plaster model, and obtaining the final socket by continuously modifying and trying on a plaster model. In the existing artificial limb manufacturing process, a plaster female model with a cut mouth shape is directly poured, the plaster female model is taken down, the mouth shape is very loose, the plaster required to be removed by the sun repair model can be used for obtaining the model with the actual size, the shape repair time is long, the more the repaired plaster is easy to deviate from the actual prototype, the stress is uneven, the comfort level is not high, and the adaptation rate is low.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a method for adjusting the shape of the artificial limb plaster female, which greatly simplifies the shape-correcting process in the design process of the artificial limb receiving cavity, reduces the design cost of the receiving cavity and improves the wearing comfort and functionality of the product.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a method of plaster female contouring a prosthesis comprising the steps of:
(1) taking a plaster female model of the stump, and enabling a patient to avoid taking down a preservative film or silk stockings;
(2) cutting the mouth shape of the plaster female model according to the size of the stump; cutting two openings at the front and rear parts of the inner side of the stump, and opening 3-5 cm downwards, and opening 5-8 cm from the middle part of the outer side to the stump;
(3) sleeving the cut plaster female model back on the residual limb again to ensure that the plaster female model corresponds to the residual limb;
(4) and (3) supporting the plaster female model, adducting the residual limb for 5-15 degrees, then reducing the gap at the outer side of the plaster female model, sticking the residual limb at the opening in the middle of the outer side to mark the lap, repairing the model, reducing the girth of the model, and completing the shape adjustment.
The method is applied to the gypsum female type adjustment of the thigh artificial limb, and comprises the following steps:
(1) preparing a preservative film, a shaping pen, water, a knife, scissors, a plaster bandage, a cutting strip, a caliper and a tape measure, allowing a patient to sit on a chair, and winding the preservative film on the stump; drawing a bony mark and a pressure-free part of the stump, rechecking the wound healing condition after stump operation, and drawing a negative pressure sensitive part, a bony bulge part, a skin grafting part and a scar part of the stump; drawing an apostrophe-facing profile and a frontal-facing profile;
(2) measuring the length of the residual limb, the height from the residual limb to the ground and the thinnest and thickest circumference of the residual limb;
(3) preparing a plaster reinforcing strip, and wrapping the reinforcing strip to the thigh belly from the lower end of the residual limb along the residual limb bottom; placing a cutting strip along the femoral spine to the upper end of the stump, winding a plaster bandage from bottom to top from inside to outside, uniformly winding four layers, not internally or externally rotating the femoral spine during winding, uniformly smearing plaster after winding, standing the legs of the patient when the plaster is not cured, smearing the shapes of the knee joint, the outer side and the inner side of the stump by hands, and shaping; correcting the associated internal/external deformities and prolapse by manipulation; confirming the angle of the knee joint before the plaster bandage is cured; drawing an opening line and a contra-opening transverse line along the cutting strip after curing; taking down the female type along the cutting strip, and sealing after adding marks by a pen; the patient preservative film does not need to be taken down;
(4) cutting the mouth shape of the plaster female model according to the size of the stump; two openings are cut at the front and the rear of the inner tendon, and are opened downwards by 3-5 cm, and the opening at the middle of the outer side is opened to the stump by 5-8 cm;
(5) sleeving the cut plaster female model back on the residual limb again to ensure that the plaster female model corresponds to the residual limb;
(6) let the patient keep balance with the help of the handrail and stand, waist level, one person holds gypsum female type model, one person adduction 5 ~ 15 with the residual limb, again reduce gypsum female type model outside clearance, and the residual limb is pasted to the department opening in the middle of the outside and is made the mark to the joint to repair the model, reduce the model and enclose to grow to 3 ~ 5 centimetres, accomplish and transfer the type.
Compared with the prior art, the invention has the following advantages and positive effects:
before filling the male mold, adjusting the female plaster model according to the adduction gravity line required by the patient to enable the adjusted female mold to be closer to the shape when the patient is stressed during walking; meanwhile, the time of the subsequent step of repairing the sun is saved; the stress uniformity and comfort level after the test-type wearing are greatly improved, the injury of the stump is reduced, the walking stability is improved, and the gait is closer to the gait of a normal person.
Detailed Description
The following is a detailed description of specific embodiments of the invention.
A method for gypsum female type adjustment of a prosthesis, which is used for gypsum female type adjustment of a thigh prosthesis, comprises the following steps:
(1) preparing a preservative film, a shaping pen, water, a knife, scissors, a plaster bandage, a cutting strip, a caliper and a tape measure, allowing a patient to sit on a chair, and winding the preservative film on the stump; drawing a bony mark and a pressure-free part of the stump, rechecking the wound healing condition after stump operation, and drawing a negative pressure sensitive part, a bony bulge part, a skin grafting part and a scar part of the stump; drawing an apostrophe-facing profile and a frontal-facing profile;
(2) measuring the length of the residual limb, the height from the residual limb to the ground and the thinnest and thickest circumference of the residual limb;
(3) preparing a plaster reinforcing strip, and wrapping the reinforcing strip to the thigh belly from the lower end of the residual limb along the residual limb bottom; placing a cutting strip along the femoral spine to the upper end of the stump, winding a plaster bandage from bottom to top from inside to outside, uniformly winding four layers, not internally or externally rotating the femoral spine during winding, uniformly smearing plaster after winding, standing the legs of the patient when the plaster is not cured, smearing the shapes of the knee joint, the outer side and the inner side of the stump by hands, and shaping; correcting the associated internal/external deformities and prolapse by manipulation; confirming the angle of the knee joint before the plaster bandage is cured; drawing an opening line and a contra-opening transverse line along the cutting strip after curing; taking down the female type along the cutting strip, and sealing after adding marks by a pen; the patient preservative film does not need to be taken down;
(4) cutting the mouth shape of the plaster female model according to the size of the stump; two openings are cut at the front and the back of the internal tendon and are opened 4 cm downwards, and the opening at the middle of the outer side is opened to the stump 6.5 cm;
(5) sleeving the cut plaster female model back on the residual limb again to ensure that the plaster female model corresponds to the residual limb;
(6) let the patient keep balance with the help of the handrail and stand, waist level, one person holds gypsum female type model, one person adduction 10 with the residual limb, again with the reduction of gypsum female type model outside clearance, the residual limb is pasted to the department opening in the middle of the outside and is done the mark to the joint to repair the model, reduce the model and enclose to grow to 4 centimetres, accomplish the accent type.
The method for adjusting the gypsum female model is applied to the artificial limb manufacturing process and comprises the following subsequent steps: casting the male mold according to a conventional method (7); (8) molding resin; (9) polishing; (10) secondary vacuum; (11) and (5) polishing a finished product.
The method is applied to the artificial limb manufacturing process, after the plaster female model is adjusted, the plaster is poured to manufacture the male model, so that the adjusted model is closer to the shape when the artificial limb is stressed during walking; the stress uniformity and comfort level after the test-type wearing are greatly improved, the injury of the stump is reduced, the walking stability is improved, and the gait is closer to the gait of a normal person.
The above embodiments are merely preferred embodiments of the present invention, and any simple modification, modification and substitution changes made to the above embodiments according to the technical spirit of the present invention are within the scope of the technical solution of the present invention.
Claims (3)
1. A method of plaster female contouring a prosthesis, comprising the steps of:
(1) taking a plaster female model of the stump, and enabling a patient to avoid taking down a preservative film or silk stockings;
(2) cutting the mouth shape of the plaster female model according to the size of the stump; cutting two openings at the front and rear parts of the inner side of the stump, and opening 3-5 cm downwards, and opening 5-8 cm from the middle part of the outer side to the stump;
(3) sleeving the cut plaster female model back on the residual limb again to ensure that the plaster female model corresponds to the residual limb;
(4) and (3) supporting the plaster female model, adducting the residual limb for 5-15 degrees, then reducing the gap at the outer side of the plaster female model, sticking the residual limb at the opening in the middle of the outer side to mark the lap, repairing the model, reducing the girth of the model, and completing the shape adjustment.
2. A method of plaster female molding for a prosthesis according to claim 1, for plaster female molding for a thigh prosthesis, comprising the steps of:
(1) preparing a preservative film, a shaping pen, water, a knife, scissors, a plaster bandage, a cutting strip, a caliper and a tape measure, allowing a patient to sit on a chair, and winding the preservative film on the stump; drawing a bony mark and a pressure-free part of the stump, rechecking the wound healing condition after stump operation, and drawing a negative pressure sensitive part, a bony bulge part, a skin grafting part and a scar part of the stump; drawing an apostrophe-facing profile and a frontal-facing profile;
(2) measuring the length of the residual limb, the height from the residual limb to the ground and the thinnest and thickest circumference of the residual limb;
(3) preparing a plaster reinforcing strip, and wrapping the reinforcing strip to the thigh belly from the lower end of the residual limb along the residual limb bottom; placing a cutting strip along the femoral spine to the upper end of the stump, winding a plaster bandage from bottom to top from inside to outside, uniformly winding four layers, not internally or externally rotating the femoral spine during winding, uniformly smearing plaster after winding, standing the legs of the patient when the plaster is not cured, smearing the shapes of the knee joint, the outer side and the inner side of the stump by hands, and shaping; correcting the associated internal/external deformities and prolapse by manipulation; confirming the angle of the knee joint before the plaster bandage is cured; drawing an opening line and a contra-opening transverse line along the cutting strip after curing; taking down the female type along the cutting strip, and sealing after adding marks by a pen; the patient preservative film does not need to be taken down;
(4) cutting the mouth shape of the plaster female model according to the size of the stump; two openings are cut at the front and the rear of the inner tendon, and are opened downwards by 3-5 cm, and the opening at the middle of the outer side is opened to the stump by 5-8 cm;
(5) sleeving the cut plaster female model back on the residual limb again to ensure that the plaster female model corresponds to the residual limb;
(6) let the patient keep balance with the help of the handrail and stand, waist level, one person holds gypsum female type model, one person adduction 5 ~ 15 with the residual limb, again reduce gypsum female type model outside clearance, and the residual limb is pasted to the department opening in the middle of the outside and is made the mark to the joint to repair the model, reduce the model and enclose to grow to 3 ~ 5 centimetres, accomplish and transfer the type.
3. Use of the method of gypsum negative profiling according to claim 1 or 2 in a prosthesis manufacturing process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911318315.XA CN110897767A (en) | 2019-12-19 | 2019-12-19 | Method for adjusting gypsum female model of artificial limb |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911318315.XA CN110897767A (en) | 2019-12-19 | 2019-12-19 | Method for adjusting gypsum female model of artificial limb |
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| Publication Number | Publication Date |
|---|---|
| CN110897767A true CN110897767A (en) | 2020-03-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911318315.XA Pending CN110897767A (en) | 2019-12-19 | 2019-12-19 | Method for adjusting gypsum female model of artificial limb |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112972079A (en) * | 2021-03-29 | 2021-06-18 | 恩德莱(湖北)健康科技有限公司 | Process for copying and locally adjusting receiving cavity |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112972079A (en) * | 2021-03-29 | 2021-06-18 | 恩德莱(湖北)健康科技有限公司 | Process for copying and locally adjusting receiving cavity |
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