CN211067287U

CN211067287U - Wrist joint polymer memory splint

Info

Publication number: CN211067287U
Application number: CN201921345032.XU
Authority: CN
Inventors: 李辉; 沈乔; 胡燕霞
Original assignee: Hubei Yanzhang Medical Co Ltd
Current assignee: Hubei Yanzhang Medical Co Ltd
Priority date: 2019-08-19
Filing date: 2019-08-19
Publication date: 2020-07-24
Anticipated expiration: 2029-08-19

Abstract

The utility model discloses a wrist joint polymer memory splint, which comprises a splint body and a flexible skin-friendly layer wrapping the splint body, wherein the splint body comprises a fixed plate surface for fitting the face or the back of a palm and an arm, a first bending wrapping surface arranged on one side of the fixed plate surface for wrapping the palm and the arm on the side of a little finger, and a second bending wrapping surface and a third bending wrapping surface which are sequentially arranged on the other side of the fixed plate surface, wherein the second bending wrapping surface is used for wrapping the side part of the thumb and the side part of the arm, the second bending wrapping surface is provided with a thumb inserting hole for the thumb to penetrate through to form a fixed pivot, the third bending wrapping surface is used for wrapping the palm and the arm on the thumb side, the third bending wrapping surface and the first bending wrapping surface are symmetrically arranged, and the long edges on the outer side are both arranged in an inner arc edge, so as to form an arc-shaped gap between the third bending wrapping surface and the first bending wrapping surface which are wrapped on the wrist joint and the arm of the human body. The memory splint is not easy to displace, easy to assemble and disassemble, comfortable and breathable in the clamping process.

Description

Wrist joint polymer memory splint

Technical Field

The utility model relates to the technical field of medical equipment, concretely relates to wrist joint polymer memory splint.

Background

With the development of the medical science level, medical fixing materials are also continuously developed, shape memory polymer materials are intelligent materials capable of responding to external conditions, can memorize a set shape (original shape), are molded into various required shapes (temporary shapes), and can automatically return to the original shape when the external temperature, magnetic field, humidity, illumination and the like reach specific conditions. The shape memory polymer material has the advantages of easy forming, large deformation amount, adjustable response temperature, printing, light weight, low cost and the like, and has wide application prospect in the fields of biomedical treatment, aerospace, intelligent textile, sensors, self-repair and the like. In recent years, various new medical fixing materials have been made of shape memory polymer materials.

At present, most of medical fixing high polymer materials are thermal response type shape memory polymers. Firstly, heating a macromolecular fixing material with a certain shape to a certain temperature or placing the macromolecular fixing material in a water bath with a certain temperature, then applying a proper external force to deform the macromolecular fixing material to be tightly attached to a human body, and cooling and fixing the macromolecular fixing material in a state of keeping the macromolecular fixing material attached to the human body. When the fixing material needs to be detached, the fixing material can be detached easily only by heating to the original temperature.

However, when the wrist joint is fixed using a polymer material, there are the following problems:

at present, polymer fixing materials are standard rectangular plate surfaces, when the wrist joints of human hands need to be fixed, the clamping plates can only be attached to the wrist arms to form a hollow cylindrical wrapping wrist arm after being heated and softened, and the hollow cylindrical clamping plates can easily slide left and right without any fixed supporting points, so that the medical effect of fixing the wrist joints cannot be achieved. And two free ends of the hollow cylindrical clamping plate form a closed-loop connecting surface, the closed-loop connecting surface needs to be cut by scissors when the clamping plate needs to be removed, and accidents are easy to occur in the removing process. In addition, the closed-loop hollow cylindrical splint is not breathable, and bacteria are easily grown on the skin in the long-time clamping process.

In addition, polymer fixed material has the problem of roughness with human skin direct contact face, and long-term laminating skin uses, and the comfort level is not high, and polymer fixed material still can have the burr, also very big influence user's travelling comfort.

Meanwhile, when the existing medical polymer material is used, the material needs to be soaked in hot water, taken out of the water after being wetted, wiped to be dry and then wrapped on the injured part of the body of a patient, so that after the material is contacted with the skin, the discomfort of the patient can be caused due to the large water content and the relatively poor air permeability of the material, and the symptoms of pruritus, dermatitis and the like can be easily caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a wrist joint polymer memory splint for solve the problem that prior art exists.

In order to realize the above-mentioned purpose, the utility model provides a wrist joint polymer memory splint, including class rectangle polycaprolactone splint body and parcel splint body and supply in the human flexible close skin layer of laminating, four contained angles of splint body are the arc angle setting, the splint body is located including the fixed face that supplies in the face or the back of laminating palm and arm fixed face one side supplies in the first parcel face of bending of palm and the arm of parcel little finger side, and locates in proper order the second parcel face of bending and the third parcel face of fixing the face opposite side, the lateral part that the parcel thumb lateral part and arm are supplied to parcel to the second parcel face of bending, it wears to establish the thumb hole that supplies to form fixed fulcrum to be provided with the thumb on the second parcel face of bending, the third parcel face of bending supplies in the palm and the arm of parcel thumb side, the third parcel face of bending with first parcel face of bending symmetry sets up and the long limit in the outside all is the inner arc limit and establishes the inner arc limit And the third bending wrapping surface and the first bending wrapping surface form an arc-shaped gap.

Preferably, the width of the second bending wrapping surface is set corresponding to the diameter of the thumb inserting hole.

Preferably, fixed face, first parcel face of bending, the parcel face of bending of second and the parcel face of bending of third all include the contact terminal surface that supplies in the laminating human body and locate the observation terminal surface at the contact terminal surface back, the periphery of observing the terminal surface be equipped with the annular step that splint body integrated into one piece formed, flexible close skin layer parcel via behind the contact terminal surface splint body four walls are along stretching the parcel annular step sets up.

Preferably, a plurality of mounting holes are formed in the end face of the annular step, and the flexible skin-friendly layer wraps/fills each mounting hole.

Preferably, a plurality of vent holes are formed in the splint body, and the flexible skin-friendly layer wraps each vent hole.

Preferably, the flexible skin-friendly layer is a silica gel layer.

Preferably, the distance between the centers of the thumb inserting holes and the edge of the upper side of the second folded wrapping surface ranges from 40mm to 50 mm.

Preferably, the diameter of the inner arc edge ranges from 400mm to 600mm, the diameter of the arc angle ranges from 52mm to 78mm, and the diameter of the thumb insertion hole ranges from 20mm to 30 mm.

Preferably, still including supplying in the surrounding parcel rectangular form constraint area in splint body middle part, the free end of constraint area is provided with the magic subsides.

Preferably, the splint further comprises an elongated bandage wrapping the middle part of the splint body in a surrounding mode.

The utility model provides a wrist joint polymer memory splint, during the use, the water bath heating splint body earlier observes the splint body and softens the condition, treats the back that finishes of heating, takes out and wipes the moisture on dry flexible close skin layer surface and can directly be used for the fixed at patient's wrist joint position. Specifically, the back or the face of the palm and the arm is flatly placed on the fixed plate surface, then the thumb insertion hole is sleeved in the thumb, the second bending wrapping surface is turned over towards the palm or the hand surface, the second bending wrapping surface is attached to and wraps the side of the thumb and the side of the arm, finally the first bending wrapping surface and the third bending wrapping surface are turned over towards the palm or the hand surface or the back of the hand and the back of the arm, the first bending wrapping surface and the third bending wrapping surface are wrapped on two opposite sides of the palm and the arm respectively, and after the splint body is hardened, the wrist joint part is fixed. Wherein, the thumb is inserted the fixed fulcrum of hole for whole memory splint, puts on the thumb through the cover, realizes the fixed of whole memory splint, prevents the memory splint displacement. The four arc angle transitions can avoid the damage of the corners to the skin of the human body. The third curved parcel face sets up and the long limit in the outside all is interior arc limit setting with first curved parcel face symmetry for wrap up and form the arc breach between third curved parcel face on human wrist joint and arm and the first curved parcel face, this arc breach is compared with prior art's closed loop cavity drum splint, only need pull open the both sides of arc breach simultaneously when needs are dismantled and can realize that the arm is deviate from, convenient and practical, and the opening face of arc breach is great, make the memory splint ventilative, be difficult for breeding the bacterium.

In addition, through observing the terminal surface, can observe the soft condition of splint body, extend the parcel to the step department of observing the terminal surface through the four walls of splint body behind the close skin layer surface parcel contact terminal surface of flexibility, increased the contact surface area of flexible layer and splint body to effectively improve the structural strength of splint flexible layer all around, prevent to use or transport the storage in-process, because the flexible layer that splint body deformation and produced breaks away from the emergence of phenomenon with the splint body.

Drawings

Fig. 1 is a schematic structural view of an embodiment of a wrist high-molecular memory splint according to the present invention;

FIG. 2 is a schematic structural view of another embodiment of the polymeric memory splint for the wrist joint shown in FIG. 1;

FIG. 3 is a side view of FIG. 2;

fig. 4 is a first application diagram of the wrist joint polymer memory splint of the present invention;

fig. 5 is a second application diagram of the wrist joint polymer memory splint of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1 to 5, the utility model provides a wrist joint polymer memory splint, which comprises a similar rectangle polycaprolactone splint body 10, a wrapping splint body 10, a flexible skin-friendly layer 20 for being attached to a human body, and a strip-shaped constraint belt 30. Wherein, four contained angles 11 of splint body 10 are the arc angle setting, can avoid the corner to cause the injury to human skin. Rectangular form constraint area 30 encircles and wraps up in the middle part of splint body 10, and the free end of constraint area 30 all is provided with the magic subsides. In practice, the elongate restraining strip 30 may be replaced by an elongate bandage which is also wrapped around the middle of the splint body.

Splint body 10 is including supplying to the fixed face 12 at the face or the back of laminating palm and arm, locate fixed 12 one sides of face and supply in the first curved wrapping surface 13 of the palm of parcel little finger side and arm, and locate second curved wrapping surface 14 and the third curved wrapping surface 15 of fixed 12 opposite sides of face in proper order, second curved wrapping surface 14 supplies in the lateral part of parcel thumb lateral part and arm, be provided with on the second curved wrapping surface 14 and supply the thumb to wear to establish the thumb plug-in hole 141 that supplies to form fixed fulcrum, third curved wrapping surface 15 supplies in the palm and the arm of parcel thumb side, third curved wrapping surface 15 sets up with first curved wrapping surface 13 symmetry and outside long limit 16 all is the inner arc limit setting, form arc breach 40 between third curved wrapping surface 15 and the first curved wrapping surface 13 for wrapping up on human wrist and arm.

The utility model provides a wrist joint polymer memory splint, during the use, the water bath heating splint body 10 earlier observes the splint body 10 and softens the condition, treats the heating back that finishes, takes out the moisture of wiping dry flexible close skin layer 20 surface and can directly be used for the fixed at patient's wrist joint position. Specifically, the palm back and the arm back are flatly placed on the fixed plate surface 12, then the thumb insertion hole 141 is sleeved in the thumb and turns over the second bending wrapping surface 14 towards the palm direction, so that the second bending wrapping surface 14 is attached to and wraps the side part of the thumb and the side part of the arm, finally, the first bending wrapping surface 13 and the third bending wrapping surface 15 are turned over towards the palm direction and the inner surface of the arm, so that the first bending wrapping surface 13 and the third bending wrapping surface 15 are wrapped on the two opposite sides of the palm surface and the inner surface of the arm respectively, and after the splint body is hardened, the fixing of the back surface of the wrist joint is realized. When the inner surface of the wrist joint needs to be fixed, the palm center surface and the arm inner surface are flatly placed on the fixing plate surface 12, then the thumb inserting hole 141 is sleeved into the thumb and is turned over towards the palm back direction to form the second bending wrapping surface 14, the second bending wrapping surface 14 is attached to and wraps the side part of the thumb and the side part of the arm, finally, the first bending wrapping surface 13 and the third bending wrapping surface 15 are turned over towards the palm back direction and the arm back direction simultaneously, the first bending wrapping surface is wrapped on the two opposite sides of the palm back and the arm back respectively through the first bending wrapping surface 13 and the third bending wrapping surface 15, and after the splint body is hardened, the inner surface of the wrist joint is fixed.

The thumb insertion hole 141 is a fixed fulcrum of the whole memory splint, and the memory splint is fixed by being sleeved on the thumb to prevent the memory splint from moving. The four arc corners 11 can avoid the damage of the corners to the skin of the human body. Third curved parcel face 15 sets up and the long limit 16 in the outside all is interior arc limit setting with first curved parcel face 13 symmetry, make and wrap up and form arc breach 40 between third curved parcel face 15 on human wrist joint and arm and the first curved parcel face 13, this arc breach 40 is compared with closed loop cavity drum splint of prior art, only need pull open the both sides of arc breach 40 simultaneously when needs are dismantled and can realize that the arm is deviate from, convenience and practicality, and arc breach 40's opening face is great, make the memory splint ventilative, be difficult for breeding the bacterium.

Further, fixed face 12, first curved wrapping surface 13, second curved wrapping surface 14 and third curved wrapping surface 15 all include the observation terminal surface 112 that supplies in the human contact terminal surface 111 of laminating and locate the contact terminal surface 111 back, and the periphery of observing terminal surface 112 is equipped with the annular step 113 with splint body 10 integrated into one piece formation, and the setting of annular step 113 is followed to the four walls of parcel via splint body 10 behind the flexible close skin layer 20 parcel contact terminal surface.

In this embodiment, the end face of the annular step 113 is provided with a plurality of mounting holes, and the flexible skin-friendly layer 20 wraps/fills each mounting hole, so that the connection strength between the flexible skin-friendly layer 20 and the splint body 10 is enhanced. The splint body 10 is provided with a plurality of vent holes 114, and the flexible skin-friendly layer 20 wraps each vent hole 114, so that the memory splint has better air permeability.

Through observing terminal surface 111, can observe the soft condition of splint body 10, extend the parcel to the step department of observing terminal surface 111 via the four walls of splint body 10 behind the flexible close skin layer 20 surface parcel contact terminal surface 112, the contact surface area of flexible close skin layer 20 with splint body 10 has been increased, thereby effectively improve the structural strength of splint flexible layer all around, prevent to use or in the transportation storage process, because the flexible close skin layer 20 that splint body 10 deformation produced breaks away from the emergence of phenomenon with splint body 10 or breaks away from.

In practical application, flexible close skin layer 20 is the silica gel layer, the diameter setting that the width of second bending wrapping surface 14 corresponds thumb insertion hole 141, the centre of a circle interval second bending wrapping surface 14's of thumb insertion hole 141 upside marginal distance scope is 40mm to 50mm, the diameter scope of the inner arc limit of third bending wrapping surface 15 and first bending wrapping surface 13 is 400mm to 600mm, the diameter scope of arc angle 11 is 52mm to 78mm, the diameter scope of thumb insertion hole 141 is 20mm to 30 mm. In this embodiment, the length of the splint body 10 is 270mm, the width is 170mm, the direct of the thumb inserting hole 141 is 25mm, the distance between the circle centers of the thumb inserting hole 141 and the upper side edge of the second bending wrapping surface 14 is 45mm, the diameter of the inner arc edge 16 is 500mm, and the diameter of the arc angle 11 is 65 mm.

The utility model provides a wrist joint polymer memory splint, during the use, the water bath heating splint body earlier observes the splint body and softens the condition, treats the back that finishes of heating, takes out and wipes the moisture on dry flexible close skin layer surface and can directly be used for the fixed at patient's wrist joint position. Specifically speaking, keep flat palm back and arm back on fixed face, then embolia the thumb with thumb insertion hole and turn over a second bending parcel face towards the palm of the hand direction in and for the second bending parcel face pastes and wraps up the lateral part of thumb lateral part and arm, turn over a first bending parcel face and a third bending parcel face towards palm of the hand direction and arm inner face simultaneously at last, make first bending parcel face and third bending parcel face wrap up in the relative both sides of palm of the face and arm inner face respectively, treat the splint body sclerosis back, realize the fixed of wrist joint position promptly. Wherein, the thumb is inserted the fixed fulcrum of hole for whole memory splint, puts on the thumb through the cover, realizes the fixed of whole memory splint, prevents the memory splint displacement. The four arc angle transitions can avoid the damage of the corners to the skin of the human body. The third curved parcel face sets up and the long limit in the outside all is interior arc limit setting with first curved parcel face symmetry for wrap up and form the arc breach between third curved parcel face on human wrist joint and arm and the first curved parcel face, this arc breach is compared with prior art's closed loop cavity drum splint, only need pull open the both sides of arc breach simultaneously when needs are dismantled and can realize that the arm is deviate from, convenient and practical, and the opening face of arc breach is great, make the memory splint ventilative, be difficult for breeding the bacterium.

Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner.

The above is only the preferred embodiment of the present invention, and not the scope of the present invention, all the equivalent structures or equivalent flow changes made by the contents of the specification and the drawings or the direct or indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A wrist joint macromolecule memory splint is characterized by comprising a rectangular polycaprolactone-like splint body and a flexible skin-friendly layer wrapping the splint body and used for being attached to a human body, wherein four included angles of the splint body are arranged in arc angles, the splint body comprises a fixed plate surface used for being attached to the face or the back of a palm and an arm, a first bending wrapping surface arranged on one side of the fixed plate surface and used for wrapping the palm and the arm on the little finger side, and a second bending wrapping surface and a third bending wrapping surface which are arranged on the other side of the fixed plate surface in sequence, the second bending wrapping surface is used for wrapping the lateral part of a thumb and the lateral part of an arm, a thumb insertion hole for the thumb to penetrate to form a fixed fulcrum is arranged on the second bending wrapping surface, the third bending wrapping surface is used for wrapping the palm and the arm on the thumb side, the third bending wrapping surface is symmetrically arranged with the first bending wrapping surface, and the long edge of the outer side is arranged in an inner arc edge, so as to form an arc-shaped gap between the third bending wrapping surface and the first bending wrapping surface which are wrapped on the wrist joint and the arm of the human body.

2. The wrist joint polymer memory splint according to claim 1, wherein the width of the second folded wrapping surface is set to correspond to the diameter of the thumb insertion hole.

3. The wrist joint polymer memory splint according to claim 1, wherein the fixing plate surface, the first bending wrapping surface, the second bending wrapping surface and the third bending wrapping surface each comprise a contact end surface for being attached to a human body and an observation end surface arranged on the back of the contact end surface, the periphery of the observation end surface is provided with an annular step formed by integrally forming the splint body, and the flexible skin-friendly layer wraps the contact end surface and then wraps the annular step by extending the four walls of the splint body.

4. The wrist joint polymer memory splint according to claim 3, wherein a plurality of mounting holes are provided on the end face of the annular step, and the flexible skin-friendly layer is provided to wrap/fill each mounting hole.

5. The wrist joint polymer memory splint according to claim 1, wherein a plurality of vent holes are provided on the splint body, and the flexible skin-friendly layer is wrapped around each of the vent holes.

6. The wrist joint polymer memory splint according to claim 1, wherein the flexible skin-friendly layer is a silicone layer.

7. The wrist joint polymer memory splint according to claim 1, wherein the distance between the center of the thumb insertion hole and the upper edge of the second folded wrapping surface is in the range of 40mm to 50 mm.

8. The wrist joint polymer memory splint according to claim 1, wherein the inner arc edge has a diameter ranging from 400mm to 600mm, the arc angle has a diameter ranging from 52mm to 78mm, and the thumb insertion hole has a diameter ranging from 20mm to 30 mm.

9. The wrist joint polymer memory splint according to claim 1, further comprising a strip-shaped restraining strip for wrapping around the middle part of the splint body, wherein the free end of the restraining strip is provided with a magic tape.

10. The wrist joint polymer memory splint according to claim 1, further comprising a strip bandage wrapped around the middle portion of the splint body.