CN204501105U - Breast prosthesis - Google Patents

Abstract

The utility model discloses a breast prosthesis, which comprises a flexible capsule body and a filling material accommodated in the capsule body. The capsule body includes a flat back and a front side protruding away from the back side; The projection of has a first end point and a second end point, the first end point and the second end point define a longitudinal axis, the projection of the capsule on the plane of the back surface is symmetrical with respect to the longitudinal axis, and the projection on the longitudinal axis The length is greater than the length of the projection in the direction perpendicular to the longitudinal axis; the outer contour of the capsule projection has a first arc through the first end point and a second arc through the second end point, the radius of the first arc is less than The radius of the second arc; when viewed from the front of the capsule in a direction perpendicular to the back of the capsule, at least one skirt is connected to and only on the outer edge of the capsule on the side of the first end point. The breast prosthesis of the utility model not only conforms to the wearing habits of modern women, but also can obtain realistic and beautiful plastic effects.

Description

Breast Prosthesis

technical field

The utility model relates to an implantable prosthesis, in particular to a breast prosthesis which can be implanted into body tissues to shape breasts.

Background technique

Implantable prostheses are generally used to replace or augment body tissue. For example, for patients with small breasts, mild breast sagging and breast defects, breast prostheses such as silicone gel breast prosthesis can be implanted in body tissues to support surrounding tissues to maintain body appearance. Capsular contracture is one of the most common complications after breast implant surgery. This complication will make the breast implant become spherical and stiff, leading to symptoms such as breast hardening, pain, and breast asymmetry. It will cause the capsule of the breast prosthesis to rupture, and the silicone gel filled in the capsule will leak out and induce breast cancer.

In order to solve the problems of prosthesis displacement, deformation and capsular contracture after breast prosthesis implantation, Chinese patent 00260102.8 discloses an artificial breast prosthesis, which consists of a breast-shaped capsule and a filler filled in the capsule Composed of materials, there is a skirt around the base of the capsule body. The skirt mainly acts as a placeholder to prevent body tissue from growing or contracting in the direction of the capsule body, so that the breast prosthesis is prevented from being compressed by the matrix tissue. out of shape. However, after the breast prosthesis is implanted in the body tissue, the soft skirt is prone to curling, and the capsule of the artificial breast prosthesis is provided with a skirt, so it is easy to feel the existence of the skirt when touching the breast , affecting aesthetics and surgical outcomes.

Chinese patent 201120474406.5 discloses a breast prosthesis, which includes a breast-shaped capsule and a filling material located in the breast-shaped capsule, and at least one fan-shaped skirt is attached to the base of the capsule. By setting a fan-shaped skirt at the base of the capsule, the cavity can be enlarged, and the incidence of prosthesis displacement, deformation, and capsular contracture after plastic surgery can be effectively reduced, and postoperative complications can be greatly reduced. The full circular skirt is felt to the touch, enhancing the visual and tactile realism while being more aesthetically pleasing. However, the breast is usually touched from the lower part or both sides near the lower part, while the fan-shaped skirt is randomly arranged at the base of the capsule, especially when multiple skirts are arranged along the breast prosthesis in its circumferential direction , the skirt remains easily tactile.

In addition, in the above existing technical solutions, the shape of the breast prosthesis is designed to be hemispherical, which causes the upper pole of the breast to bulge excessively, which does not conform to the female physiological structure, resulting in unrealistic breast prosthesis and lack of aesthetic feeling after implantation of the breast prosthesis.

In order to solve the problem that the hemispherical breast prosthesis is unrealistic and lacks aesthetic feeling, Chinese patent 200820151655.9 discloses a breast prosthesis, which has a drop-shaped capsule, which is not only more in line with female physiological structure, but also fully Taking into account the slight sagging of natural breasts due to gravity and age, the shape of the breasts is more in line with the female physiological curve, achieving a more natural and realistic plastic surgery effect. At the same time, four positioning points are arranged on the front and rear surfaces of the capsule so as to accurately position the breast prosthesis during surgical implantation.

But the design of the above-mentioned teardrop-shaped breast prosthesis still has the following disadvantages:

First, the design doesn't take into account the dressing habits of the modern woman. Modern women all wear corsets that support the breasts. Under the support of the corsets, the breasts will naturally move upward and bulge. However, after the above-mentioned drop-shaped breast prosthesis is implanted into the breast, it is completely wrapped by the surrounding tissues, lacks a space for upward movement, and cannot fully move upward, so it cannot achieve the full, smooth and smooth effect of the natural breast under the support of the corset. Natural lift effect.

Secondly, when the human body is upright without a corset, the natural breasts will sag due to the action of gravity or with age, so that the size of the breast in the height direction of the human body will be larger than the size in the horizontal direction, and the lower part will be larger than the top pole. However, viewed from the front of the breast prosthesis, the breast prosthesis appears as a perfect circle, so the shape of the breast prosthesis is still quite different from that of the natural breast, and the plastic surgery effect is not good.

Finally, among the four positioning points on the capsule of the breast prosthesis, three positioning points are set on the back of the capsule, and one positioning point is set on the lower part of the front of the capsule. The breast prosthesis can be accurately positioned, but after the breast prosthesis is implanted into the body tissue during the operation, the positioning point on the back of the capsule cannot be captured by the doctor, while the positioning point on the front of the capsule is located at the center of the capsule. In the lower part, the patient is in a lying position during plastic surgery. It is not easy for the doctor to touch the positioning points on the front and lower part of the capsule with his fingers during the operation, resulting in inconvenient or even inaccurate positioning. At the same time, since the breast is usually touched from the bottom or both sides near the bottom, it is easy to feel the positioning points arranged on the front and bottom of the capsule when touching the breast, which reduces the authenticity and aesthetic feeling of the breast after plastic surgery.

In view of the deficiencies of the above breast prosthesis, there is still a need to provide a breast prosthesis that not only conforms to the wearing habits of modern women but also has a good plastic effect.

Contents of the invention

Aiming at the deficiencies of the prior art, the main purpose of this utility model is to provide a breast prosthesis that not only conforms to the wearing habits of modern women but also has a good plastic effect.

In order to achieve the above main purpose, the utility model provides a breast prosthesis, which includes a flexible capsule and a filling material contained in the capsule. The capsule includes a flat back and a protruding front facing away from the back; The projection on the plane of the back surface has a first end point and a second end point, the first end point and the second end point define a longitudinal axis, the projection of the capsule on the plane of the back surface is symmetrical with respect to the longitudinal axis, and the projection The length on the longitudinal axis is greater than the length of the projection in a direction perpendicular to the longitudinal axis; the outer contour of the projection of the capsule has a first arc through a first end point and a second arc through a second end point, the first The radius of the arc is smaller than the radius of the second arc; viewed from the front of the capsule in a direction perpendicular to the back of the capsule, at least one skirt is connected to and only on the outer edge of the capsule on the side of the first end point .

It is worth noting that due to the flexibility and weight of the breast prosthesis, even if it is placed naturally, it will have different shapes in different placement states. In the present invention, unless otherwise specified, the described breast prosthesis is naturally placed on a horizontal and flat support surface with its back facing downward.

In the utility model, the mid-vertical plane of the line segment connecting the first end point and the second end point is used as the interface, and the interface divides the capsule into two components, that is, the part on the side of the first end point and the part on the side of the first end point. The portion on one side of the second endpoint.

In the present utility model, a single skirt can be set on the outer edge of the capsule on the side of the first end point, or a plurality of skirts spaced from each other and/or stacked can be set; The entire outer edge of the capsule on one side of the end point may also be arranged only on a partial outer edge.

Due to the effect of gravity and aging, when the human body is in an upright state, the natural breasts will sag more or less without the support of the bra, resulting in the lower pole of the breast being larger than the upper pole, and the size of the breast in the height direction of the human body is larger than that of the breast. Dimensions in the horizontal direction. After the breast prosthesis of the present utility model is implanted into the body tissue, one side of the first end point is arranged above the height direction of the human body, and the longitudinal axis is roughly parallel to the height direction of the human body or has a small angle. The radius is designed to be less than the radius of the second arc, and the length of the capsule on the longitudinal axis is greater than the length of the capsule in the direction perpendicular to the longitudinal axis, therefore, in the absence of a bra support, the utility model The breast obtained by breast implant surgery has basically the same shape as the natural breast, achieving a good plastic effect.

In the breast prosthesis of the present utility model, at least one skirt is connected to the outer edge of the capsule located on the side of the first end point. After the breast prosthesis is implanted in the body tissue, the capsule is connected with the skirt. One side is set above the height direction of the human body, and the skirt can create a reserved space in the body tissue and the upper part of the breast prosthesis. Move within the reserved space and bulge up like natural breasts. Therefore, even in the state of wearing a bra, the breasts after plastic surgery also have a shape close to natural breasts. Moreover, when the breast is touched from the lower part of the breast or the two sides close to the lower part, the existence of the skirt will not be felt, which increases the authenticity and beauty of the breast after plastic surgery.

According to a specific embodiment of the present invention, the ratio of the length of the capsule projected on the longitudinal axis to the length of the capsule projected in the direction perpendicular to the longitudinal axis is greater than 1:1 and less than 4:3. Preferably, the ratio of the length of the capsule projected on the longitudinal axis to the length of the capsule projected in the direction perpendicular to the longitudinal axis is greater than 11:10 and less than 6:5.

According to another specific embodiment of the present invention, the ratio of the radius of the second arc to the radius of the first arc is greater than 1:1 and less than 5:4. Preferably, the ratio of the radii of the second arc to that of the first arc is greater than 1:1 and less than 6:5.

According to another specific embodiment of the present utility model, at least one marking point is provided on the front side on the side of the first end point.

In the above technical solution, since the marking point is set on the front of the capsule body and on the side where the first end point is located, that is, on the side where the skirt is located, even if the breast prosthesis is implanted After being inserted into the body tissue, the doctor can also touch the mark point conveniently, and the positioning of the breast prosthesis is very convenient, which is convenient for the doctor to perform the implantation operation. Simultaneously, since the side of the capsule body connected with the skirt (that is, the side where the first end point is located) is arranged above the height direction of the human body, it is not easy to touch the breast from the lower part of the breast or the two sides close to the lower part. The presence of marking points increases the realism and beauty of the breast after plastic surgery.

According to another specific embodiment of the present invention, at least two marking points are provided on the front side on the side of the first end point.

In the above technical solution, since at least two marking points are arranged on the front of the capsule and on the side connected to the skirt, the positioning of the breast prosthesis is more convenient and accurate, which is convenient for doctors to perform implantation operations.

According to another specific embodiment of the present invention, the center distance between adjacent marking points is 5 mm to 20 mm. Preferably, the center distance between adjacent marking points is 8mm to 15mm.

In the above technical solution, the distance between adjacent marking points is controlled within an appropriate range, so that the doctor can feel the positions of multiple marking points with only one finger, which is convenient for surgical operation.

According to another specific embodiment of the present invention, the projection of the marking point on the plane where the back of the capsule is located is located on the longitudinal axis of the projection of the capsule.

In the above technical solution, when the projection of the marking point on the plane where the back of the capsule is located is located on the longitudinal axis of the projection of the capsule, it is especially convenient for the doctor to quickly locate, and it also allows the recipient of the operation to conveniently and accurately judge whether there is a problem after plastic surgery. Displacement and deformation of breast prosthesis.

In the breast prosthesis of the present invention, the marking point can be set close to the skirt to reduce the possibility of being tactile after plastic surgery and facilitate the positioning of the breast prosthesis during plastic surgery. Therefore, the shortest distance between the marking point and the skirt can be controlled to be 5mm to 40mm; preferably 5mm to 30mm; more preferably 8mm to 25mm.

According to another specific embodiment of the present utility model, the outer surface side of the capsule is formed with a porous textured surface layer, the average thickness of the textured surface layer is controlled to be 50 μm to 1000 μm, and the average pore diameter of the pores constituting the porous structure is controlled to be 50 μm to 800 μm.

Preferably, the average thickness of the wool surface layer is controlled to be 100 μm to 500 μm, and the average pore diameter of the pores is controlled to be 100 μm to 500 μm; more preferably, the average thickness of the wool surface layer is controlled to be 150 μm to 350 μm, and the average pore diameter of the pores is controlled to be 150 μm to 350 μm .

Preferably, the surface area of the capsule that is formed with the hair surface layer is 2-8 times of the capsule surface area before forming the hair surface layer; 4-6 times the surface area.

Setting a hairy layer with a porous structure on the outer surface of the capsule can increase the surface area of the capsule, enhance the adhesion between the breast prosthesis and the surrounding tissue, and reduce the degree of capsular contracture. Handfeel, especially if the cystic surface area is too large, the breast may not feel smooth to the touch. The thickness of the hair surface layer and the aperture of the hole are controlled within the above numerical range, especially within the preferred numerical range, so as to reasonably increase the surface area of the capsule body, which can ensure that the breast has a good smooth feel after plastic surgery, and can Effective fixation between breast prosthesis and surrounding tissue and reduction of capsular contracture.

According to another specific embodiment of the present utility model, the skirt has a smooth surface, and the thickness of the skirt is 0.1 mm to 1.0 mm. Preferably, the skirt has a thickness of 0.2 mm to 0.7 mm.

In order to enable the skirt to achieve an effective space-occupying role and create a reserved space without causing other adverse consequences, the skirt is preferably required to have a thinner thickness. In the utility model, the skirt has a smooth surface, which is beneficial for reducing the thickness of the skirt. Controlling the thickness of the skirt at 0.1 mm to 1.0 mm, especially at 0.2 mm to 0.7 mm, can achieve a better shaping effect.

According to another specific embodiment of the present invention, the skirt has a maximum width controlled to be 4-20mm at the first end point, and the width of the skirt gradually decreases on the way away from the first end point.

Preferably, the maximum width of the skirt is controlled to be 6mm to 15mm. More preferably, the maximum width of the skirt is controlled to be 8mm to 12mm.

In the present invention, the shaping effect can be further improved by controlling the width of the skirt. Under the support of the corset, the breast prosthesis mainly moves upward along the longitudinal axis and less moves to both sides close to the upper part. Therefore, the skirt has a larger width near the first end point, And there is a smaller width at the position away from the first end point, so that the skirt will make a larger reserved space on the upper part and a relatively small reserved space on both sides near the upper part, so that the skirt The distribution of the manufactured headroom matches the movement tendency of the breast implant, improving the plastic surgery effect.

In addition, when the width of the skirt is too large, it is easy to be felt after the skirt is curled, and when the width of the skirt is too small, the reserved space cannot be reasonably produced. Therefore, in the utility model, the maximum width of the skirt is reasonably controlled, so that the skirt is not easy to be felt, and a reasonable reserved space can be created.

Compared with the prior art, the breast prosthesis of the present invention not only fully considers the clothing characteristics of modern women, but also has a shape and structure design that conforms to the characteristics of women's physiological structure, so that more beautiful and realistic plastic effects can be obtained. In addition, the marking points are set on the front side of the capsule and the side connected to the skirt, which not only facilitates the positioning of the breast prosthesis during plastic surgery, but also makes it difficult to feel the existence of the marking points after plastic surgery, and the plastic surgery effect is better.

Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail.

Description of drawings

Fig. 1 is the perspective view of the breast prosthesis embodiment of the present utility model;

Fig. 2 is the top view of breast prosthesis shown in Fig. 1;

Fig. 3 is the left view of breast prosthesis shown in Fig. 1;

Fig. 4 is a front view of the breast prosthesis shown in Fig. 1 .

Detailed ways

Figures 1-4 show a breast prosthesis 1 as an embodiment of the present invention, which is naturally placed on a horizontal and flat support surface with its back facing down. After the breast prosthesis 1 is implanted in the body tissue, it has a distribution orientation similar to that shown in FIG. 2 , that is, the skirt 20 is located above the height direction of the human body, and the front side 12 of the capsule 10 faces the front side of the human body. In this utility model, "top", "bottom", "upper", "lower", "left", "right", "upper" and "lower" are all described with reference to the orientation shown in Figure 2, " The directions "inside", "back", and "outside", "front" correspond to the left side and the right side shown in FIG. 3, respectively.

As shown in FIGS. 1-4 , the breast prosthesis 1 is an anatomical breast prosthesis, including a flexible capsule 10 formed into a roughly half-drop shape and a filling material (not shown) contained in the capsule 10 . In this embodiment, both the capsule body 10 and the filling material are silicone gel. Of course, other materials suitable for making implantable prostheses can also be used, for example, physiological saline can be used as the filling material.

Referring to FIGS. 2-3 , the capsule 10 has a flat back 11 and a front 12 that protrudes away from the back 11 . Viewed from the front side 12 of the capsule body 10, the projection of the capsule body 10 on the plane where the back surface 11 is located has a first endpoint P1 at the top and a second endpoint P2 at the bottom, the first endpoint P1 and the second endpoint P2 define A longitudinal axis M with respect to which the projection of the capsule 10 is symmetrical.

The length of the capsule 10 projected on the longitudinal axis M is H, the length in the direction perpendicular to the longitudinal axis M is L, and the ratio of the length H to the length L is 8:7. The projected outer contour of the capsule 10 has a first circular arc passing through the first endpoint P1 and a second circular arc passing through the second endpoint P2, and a curve is passed between the corresponding endpoints of the first circular arc and the second circular arc Smooth connection. The radius of the first arc is r, the radius of the second arc is R, and the ratio of the radii of the second arc to the first arc is 11:10.

As shown in FIG. 2 , a skirt 20 is connected to the outer edge 13 of the capsule 10 on and only on the side where the first end point P1 is located. The skirt 20 has a smooth surface and a thickness of 0.5mm. The skirt 20 has a maximum width of 10mm at the first end point P1, and the width of the skirt 20 gradually decreases to 0 on the way away from the first end point P1. Those skilled in the art can easily understand that in this embodiment, multiple skirts can also be provided on the outer edge 13 of the capsule 10 on the side where the first end point P1 is located. For example, a plurality of skirts are arranged at intervals or stacked.

As shown in Figure 2, two marking points 30 are arranged on the front and upper part of the capsule body 10, and the distance between the centers of the two marking points 30 is 10mm, and the shortest distance between the upper marking point 30 and the skirt 20 is the same. 10mm. When viewed from the front side 12 of the capsule 10 , the projections of the two marking points 30 on the plane of the back side 11 are both distributed on the longitudinal axis M. Those skilled in the art can easily understand that the marking point 30 may not be arranged on the longitudinal axis M; in addition, since the skirt 20 is provided, although it is not a preferred choice, only one marking point 30 is also possible. Those skilled in the art can easily understand that although not necessary, the number of marking points 30 can also be more than two.

As shown in Figure 3, viewed from the left side of the breast prosthesis 1, in the direction from top to bottom, the front face 12 of the capsule body 10 first gradually protrudes outwards, and protrudes to the bottom of the center of the capsule body 10. The maximum size, and then gradually shrink inward, that is, the capsule body 10 is asymmetrical up and down, and the center of gravity of the capsule body 10 is located at the bottom of the capsule body 10, so as to simulate the shape of the natural breast slightly drooping due to gravity or external force.

As shown in Figure 4, viewed from the bottom of the breast prosthesis 1, in the direction from left to right, the front face 12 of the capsule body 10 protrudes outward gradually at first, and protrudes to the maximum size at the central position of the capsule body 10. , and then gradually shrink inward, that is, the capsule body 10 is left and right symmetrical.

On the outer surface side of the capsule body 10 is formed a matte layer (not shown in the figure) with a porous structure, and the porous structure is composed of interconnected or non-interconnected pores. The average thickness of the wool surface layer is 250±50 μm, the average pore diameter of the pores is 240 μm±50 μm, and the surface area of the capsule 10 formed with the wool surface layer is 5 times that of the capsule body before forming the wool surface layer.

Those skilled in the art can easily understand that the outer surface of the capsule body 10 can also be a smooth surface, or a combination of a smooth surface and a rough surface can also be used.

Although the preferred embodiments of the present invention are disclosed above, they are not intended to limit the implementation scope of the present invention. Those of ordinary skill in the art, without departing from the scope of the invention of the utility model, equivalent improvements made according to the utility model shall be covered by the scope of the invention of the utility model.

Claims (10)

1. a breast prosthesis, the packing material comprising flexible utricule and be contained in described utricule, the front that described utricule comprises the smooth back side and protrudes towards the direction away from the described back side, is characterized in that:

Described utricule at the described back side projection in the plane there is the first end points and the second end points, described first end points and described second end points limit a longitudinal axis, described projection is symmetrical relative to described longitudinal axis, and described in the length be projected on described longitudinal axis be greater than described in be projected in and the length on the direction of described longitudinal axis orthogonal;

The outline of described projection has by the first circular arc of described first end points with by described double-pointed second circular arc, and the radius of described first circular arc is less than the radius of described second circular arc;

Direction perpendicular to the described back side is observed from described front, and be only connected with at least one shirt rim in the outer of the utricule being positioned at described first end points side.

2. breast prosthesis according to claim 1, is characterized in that: described in be projected in length on described longitudinal axis and described being projected in is greater than 1:1 with the length ratio on the direction of described longitudinal axis orthogonal and is less than 4:3.

3. breast prosthesis according to claim 1, is characterized in that: the radius of described second circular arc is greater than 1:1 with the ratio of the radius of described first circular arc and is less than 5:4.

4. breast prosthesis according to claim 1, is characterized in that: the front being positioned at described first end points side is provided with at least one gauge point.

5. breast prosthesis according to claim 1, is characterized in that: the front being positioned at described first end points side is provided with at least two gauge points.

6. breast prosthesis according to claim 5, is characterized in that: the centre distance between adjacent described gauge point is 5mm to 20mm.

7. the breast prosthesis according to any one of claim 4 to 6, is characterized in that: described gauge point at the described back side projection be in the plane positioned on described longitudinal axis.

8. breast prosthesis according to claim 1, it is characterized in that: the outer surface side of described utricule is formed with the flocked layer of loose structure, the average thickness of described flocked layer controls to be 50 μm to 1000 μm, and the average pore size in described hole controls to be 50 μm to 800 μm.

9. breast prosthesis according to claim 1, is characterized in that: described shirt rim has smooth surface, and the thickness of described shirt rim is 0.1mm to 1.0mm.

10. breast prosthesis according to claim 1, is characterized in that: described shirt rim has the Breadth Maximum controlled as 4mm to 20mm at described first end points place, and the width of described shirt rim reduces gradually on the path away from described first end points.