Retractable structure and medical device

Abstract

The utility model provides a collapsible structure and a medical device, the collapsible structure comprises a collapsible band, the collapsible band is provided with a plurality of raised fixing assemblies, and the fixing assemblies are internally provided with expandable bags; the closing piece is connected with one end of the contraction band; the connecting piece is connected with the contraction band, the connecting piece and the contraction band are arranged in the same direction, a plurality of matched protrusions are arranged on the connecting piece, and the matched protrusions are arranged in the circumferential direction of the connecting piece; movement of the connecting piece on the contraction band is limited through the fixing assembly and the matched protrusion. When the expandable bag is in a contraction state, the fixing assembly contracts to enable the contraction band to loosen the organ; when the expandable bag is in an expanded state, the fixing assembly expands to enable the contraction band to tighten the organ. The technical problem that the tightness of the retractable structure cannot be adjusted in the prior art is solved.

Description

Technical Field

[0001] The utility model relates to the field of medical technology, and particularly to a retractable structure and a medical device. Background Art

[0002] The artificial retractable structure technology is a medical device, which is usually used to treat diseases such as urinary incontinence, fecal incontinence, gastroesophageal reflux disease, etc. In order to reduce the diameter of the organ, the artificial retractable structure applies pressure to the organ. Especially in the case of urinary incontinence, the retractable structure substantially forms an artificial sphincter that can open and close the urethral sphincter by controlling the pressure exerted by the hoop.

[0003] However, in the actual application process, there is such a problem: once the two ends of the retractable structure are closed into a ring, it is difficult to adjust the inner diameter again. When the urethral sphincter function of the patient gradually recovers or further relaxes, the inner diameter of the retractable structure cannot be adjusted as needed, resulting in the inability to adjust the tightness of the retractable structure. Summary of the Utility Model

[0004] The utility model solves the technical problem that the tightness of the retractable structure cannot be adjusted in the prior art.

[0005] To solve the above problems, the utility model provides a retractable structure, which includes: a retractable band, on which a plurality of raised fixing components are provided, and an expandable bladder is arranged inside the fixing components; a closing member, which is connected to one end of the retractable band; a connecting member, which is connected to the retractable band and arranged in the same direction as the retractable band, and a plurality of mating protrusions are provided on the connecting member, and the mating protrusions are arranged along the circumferential direction of the connecting member; wherein, the movement of the connecting member on the retractable band is restricted by the fixing components and the mating protrusions; when the expandable bladder is in a contracted state, the fixing components contract to loosen the retractable band from the organ; when the expandable bladder is in an expanded state, the fixing components expand to tighten the retractable band on the organ.

[0006] Compared with the prior art, the technical effects achieved by adopting this technical solution are as follows: The D1 direction is the length direction of the shrinkable belt, i.e., the first direction; the D2 direction is the width direction of the shrinkable belt, i.e., the second direction; the D3 direction is the thickness direction of the shrinkable belt, i.e., the third direction; the second plane is the plane formed by the D1 direction and the D2 direction. The shrinkable structure includes: a shrinkable belt, a closure, and a connecting member. The shrinkable belt and the connecting member both extend along the first direction, and at least part of the connecting member is connected to the shrinkable belt. A convex fixing component is provided on the first surface of the shrinkable belt. The connecting member contacts the shrinkable belt on the first surface and is arranged in a circular ring around the outer periphery of the connecting member in cooperation with the convexity. The movement of the connecting member on the shrinkable belt is restricted by the fixing component and the cooperating convexity, so that the cooperation between the shrinkable belt and the connecting member realizes a buckling function. At the same time, the size of the annular structure is adjusted through the cooperation of multiple fixing components and multiple cooperating convexities, achieving the effect of adjusting the size of the shrinkable belt. At the same time, an inflatable bladder is provided in the fixing component, and the volume of the inflatable bladder is variable. Through the expansion or contraction of the inflatable bladder, the expansion or contraction of the fixing component is driven. When the fixing component limits the cooperating convexity, the size of the annular structure is further adjusted, realizing the adjustment of the tightness of the organ, so that the shrinkable belt can both realize the buckling function and the contraction function.

[0007] In an example of the present utility model, the inflatable bladder is provided with an expansion direction, and the expansion direction is opposite to the convex direction of the fixing component.

[0008] Compared with the prior art, the technical effects achieved by adopting this technical solution are as follows: The convex fixing component provides a certain resistance and limit to the movement of the cooperating convexity along the first direction; the expansion direction is opposite to the convex direction of the fixing component, avoiding the influence of the inflatable bladder on the limiting effect of the fixing component during the process of switching between the contraction state and the expansion state.

[0009] In an example of the present utility model, the fixing component includes: a first fixing member, and a first inflatable bladder is provided in the first fixing member; a second fixing member, the second fixing member and the first fixing member are respectively arranged on both sides of the shrinkable belt, and a second inflatable bladder is provided in the second fixing member; wherein, there is a first distance between the second fixing member and the first fixing member to form an accommodation space.

[0010] Compared with the prior art, the technical effects achieved by adopting this technical solution are as follows: A first inflatable bladder and a second inflatable bladder are respectively provided in the first fixing member and the first fixing member, improving the stability when the shrinkable belt expands or contracts; the first fixing member and the second fixing member are both arranged on the same surface of the shrinkable belt and are respectively arranged on both sides of the shrinkable belt. There is a first distance between the second fixing member and the first fixing member to form an accommodation space for accommodating at least part of the connecting member.

[0011] In an example of the present utility model, when the fixing component and the mating protrusion are in the first state, at least one of the plurality of mating protrusions is disposed between two adjacent fixing components, and at least one of the plurality of fixing components is disposed between two adjacent mating protrusions; when the fixing component and the mating protrusion are in the second state, at least one mating protrusion is disposed within the receiving space; wherein, when the fixing component and the mating protrusion are switched between the first state and the second state, the connecting member is subjected to a force in the first direction to tighten the contraction belt tightening organ.

[0012] Compared with the prior art, the technical effects achieved by adopting this technical solution: when the fixing component and the mating protrusion are in the first state, at least one of the plurality of mating protrusions is disposed between two adjacent fixing components, and at least one of the plurality of fixing components is disposed between two adjacent mating protrusions, it can be obtained that the number of the plurality of fixing components and the plurality of mating protrusions is the same, which can avoid waste of resources; and the fixing component and the mating protrusion are arranged in one-to-one correspondence, which can better cooperate when the fixing component and the mating protrusion are in the second state.

[0013] In an example of the present utility model, the mating protrusion is provided with a highest protrusion, and the thickness of the mating protrusion gradually decreases from the highest protrusion to both ends.

[0014] Compared with the prior art, the technical effects achieved by adopting this technical solution: the mating protrusion can more easily pass through the receiving space formed by the fixing component, and can make the switching between the first state and the second state of the fixing component and the mating protrusion smoother.

[0015] In an example of the present utility model, the cross-section of the mating protrusion on the second plane is circular; at the highest protrusion, the diameter of the circle is greater than the first distance.

[0016] Compared with the prior art, the technical effects achieved by adopting this technical solution: the circular cross-section of the mating protrusion on the second plane can make the mating protrusion more easily switch between the first state and the second state; at the highest protrusion, by making the diameter of the circle greater than the first distance, the movement of the mating protrusion is restricted to a certain extent.

[0017] In an example of the present utility model, the contraction belt, the fixing component, the connecting member and the mating protrusion are all elastic members.

[0018] Compared with the prior art, the technical effects achieved by adopting this technical solution: the contraction belt, the fixing component, the connecting member and the mating protrusion are made of silica gel, and silica gel has the advantages of being safe, non-toxic, insoluble in water and any solvent, and having stable chemical properties.

[0019] In an example of the present utility model, the fixing component and the contraction belt are integrally formed; the mating protrusion and the connecting member are integrally formed.

[0020] Compared with the prior art, the technical effects achieved by adopting this technical solution are as follows: The manufacturing process is simple. The integrally formed structure can enhance the firmness of the connection between the fixing component and the shrinkage band, and the integrally formed structure can enhance the firmness of the connection between the mating protrusion and the connecting member, making the structures of the shrinkage band and the connecting member more compact.

[0021] On the other hand, the present utility model also provides a medical device, including: a brake for timing control of the contraction and expansion of the inflatable bladder; a connector, one end of the connector is connected to the brake; a shrinkable structure as in any of the above embodiments, and the shrinkable structure is connected to the other end of the connector.

[0022] Compared with the prior art, the technical effects achieved by adopting this technical solution are as follows: The medical device in this embodiment has all the beneficial effects of the shrinkable structure in any embodiment of the present utility model, which will not be elaborated here.

[0023] After adopting the technical solution of the present utility model, the following technical effects can be achieved:

[0024] (1) The movement of the connecting member on the shrinkage band is restricted by the fixing component and the mating protrusion, so that the cooperation between the shrinkage band and the connecting member realizes a buckling function. At the same time, the size of the annular structure is adjusted by the cooperation of multiple fixing components and multiple mating protrusions, achieving the effect of adjusting the size of the shrinkage band.

[0025] (2) An inflatable bladder is provided in the fixing component, and the volume of the inflatable bladder is variable. By the expansion or contraction of the inflatable bladder, the expansion or contraction of the fixing component is driven. When the fixing component limits the mating protrusion, the size of the annular structure is further adjusted, realizing the adjustment of the tightness of the organ, so that the shrinkage band can not only realize the buckling function but also the contraction function. Description of the Drawings

[0026] Figure 1 It is a schematic structural diagram of a shrinkable structure provided by Embodiment 1 of the present utility model.

[0027] Figure 2 It is a schematic structural diagram when the connector and the shrinkable structure are connected in Embodiment 2 of the present utility model.

[0028] Figure 3 It is Figure 2 Another perspective schematic structural diagram when the connector and the shrinkable structure are connected in

[0029] Figure 4 It is Figure 3 The cross-sectional view at A-A in

[0030] Figure 5 When the inflatable bladder is in a contracted state,Figure 4 Partial enlarged view at position B in [Chinese description].

[0031] Figure 6 When the inflatable sac is in the inflated state, Figure 4 Partial enlarged view at position B in [Chinese description].

[0032] Explanation of reference numerals:

[0033] 10 - Contraction structure; 100 - Contraction band; 110 - Fixing component; 111 - First fixing part; 112 - Second fixing part; 113 - Accommodating space; 120 - Inflatable sac; 131 - First groove; 132 - Second groove; 200 - Closing part; 300 - Connecting part; 310 - Matching protrusion; 311 - Highest protrusion point; 20 - Connector. Detailed implementation manners

[0034] To make the above - mentioned objects, features, and advantages of the present utility model more obvious and understandable, the technical solutions in the embodiments of the present utility model are clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0035]

Embodiment 1

[0036] Refer to Figure 1 , this embodiment provides a contraction structure 10, and the contraction structure 10 includes: a contraction band 100, a closing part 200, and a connecting part 300. A plurality of protruding fixing components 110 are provided on the contraction band 100, and an inflatable sac 120 is provided inside the fixing component 110; the closing part 200 is connected to one end of the contraction band 100; the connecting part 300 is connected to the contraction band 100 and is arranged in the same direction as the contraction band 100, and a plurality of matching protrusions 310 are provided on the connecting part 300, and the matching protrusions 310 are arranged along the circumferential direction of the connecting part 300; wherein, the movement of the connecting part 300 on the contraction band 100 is restricted by the fixing component 110 and the matching protrusion 310; when the inflatable sac 120 is in the contraction state, the fixing component 110 contracts to loosen the contraction band 100 from the organ; when the inflatable sac 120 is in the inflated state, the fixing component 110 expands to tighten the contraction band 100 on the organ.

[0037] Further, the fixing assembly 110 includes: a first fixing member 111 and a second fixing member 112. A first inflatable bladder is provided inside the first fixing member 111; the second fixing member 112 and the first fixing member 111 are respectively disposed on both sides of the contraction band 100, and a second inflatable bladder is provided inside the second fixing member 112; wherein, there is a first distance between the second fixing member 112 and the first fixing member 111 to form an accommodation space 113.

[0038] In a specific embodiment, in combination with Figures 2 - 6 , the D1 direction is the length direction of the contraction band 100, i.e., the first direction; the D2 direction is the width direction of the contraction band 100, i.e., the second direction; the D3 direction is the thickness direction of the contraction band 100, i.e., the third direction; the second plane is the plane formed by the D1 direction and the D2 direction. The retractable structure 10 includes: a contraction band 100, a closing member 200, and a connecting member 300. The contraction band 100 and the connecting member 300 both extend along the first direction, and at least a part of the connecting member 300 is connected to the contraction band 100; a plurality of fixing assemblies 110 are provided in the length direction of the contraction band 100. The fixing assembly 110 includes: a first fixing member 111 and a second fixing member 112, both of which are disposed on the same surface of the contraction band 100 and are respectively disposed on both sides of the contraction band 100. There is a first distance between the second fixing member 112 and the first fixing member 111 to form an accommodation space 113 for accommodating at least a part of the connecting member 300; a first inflatable bladder and a second inflatable bladder are respectively provided inside the first fixing member 111 and the first fixing member 111 to improve the stability when the contraction band 100 expands or contracts. The closing member 200 is used to pass through the contraction band 100 and form an annular structure with the contraction band 100 for binding an organ (the organ in this embodiment may be the urethra).

[0039] The first surface of the contraction band 100 is provided with the protruding fixing assembly 110. The connecting member 300 contacts the contraction band 100 on the first surface, and the mating protrusion 310 is arranged in a circular shape around the outer periphery of the connecting member 300. The movement of the connecting member 300 on the contraction band 100 is restricted by the fixing assembly 110 and the mating protrusion 310, so that the cooperation between the contraction band 100 and the connecting member 300 realizes a buckling function. At the same time, the size of the annular structure is adjusted through the cooperation of a plurality of fixing assemblies 110 and a plurality of mating protrusions 310, achieving the effect of adjusting the size of the contraction band 100; at the same time, an inflatable bladder 120 is provided inside the fixing assembly 110, and the volume of the inflatable bladder 120 is variable. Through the expansion or contraction of the inflatable bladder 120, the expansion or contraction of the fixing assembly 110 is driven. When the fixing assembly 110 limits the mating protrusion 310, the size of the annular structure is further adjusted to realize the adjustment of the tightness of the organ, so that the contraction band 100 can not only realize the buckling function but also realize the contraction function.

[0040] The connecting member 300 is provided with a ventilation duct extending in the first direction, and the ventilation duct is connected to the expandable bladder 120, that is, the ventilation duct is in communication with the expandable bladder 120. The expandable bladder 120 is inflated or deflated by injecting gas into or extracting gas from the ventilation duct. When gas is injected into the ventilation duct, the expandable bladder 120 drives the fixing assembly 110 to expand, so that the fixing assembly 110 generates a squeezing force approaching the organ direction, thereby tightening the organ. When the gas in the ventilation duct is extracted, the contraction of the expandable bladder 120 drives the fixing assembly 110 to contract, so that the fixing assembly 110 generates a force away from the organ direction, thereby loosening the organ. By adjusting the air pressure in the ventilation duct, the degree of inflation of the expandable bladder 120 can be controlled, and then the tightness of the retractable structure 10 can be adjusted, so as to realize the adjustment of the tightness of the retractable structure 10 on the organ.

[0041] In other words, a first groove 131 and a plurality of second grooves 132 are provided on the contraction belt 100. The first groove 131 is recessed in the third direction and extends in the first direction. The second grooves 132 have the same recessed direction as the first groove 131 and extend in the second direction, and the first groove 131 and the second grooves 132 communicate with each other. The plurality of second grooves 132 are arranged at equal intervals in the first direction to form a plurality of fixing assemblies 110 arranged at equal intervals and protruding on the contraction belt 100. The first groove 131 divides the fixing assembly 110 into a first fixing member 111 and a second fixing member 112. The first fixing member 111 and the second fixing member 112 have a first distance equal to the width of the first groove 131 and form a receiving space 113 for receiving the connecting member 300.

[0042] Preferably, a switch for controlling its on / off is provided at the opening of the expandable bladder 120, and the contraction of the contraction belt 100 on the organ can be further controlled by controlling the on / off of each expandable bladder 120. The expandable bladder 120 is made of an elastic material. When the expandable bladder 120 contracts to a certain extent, the expandable bladder 120 is in a sheet shape.

[0043] Preferably, the second groove 132 penetrates through the contraction belt 100 in the second direction, which can further reduce the material consumption of the contraction belt 100.

[0044] Furthermore, the expandable bladder 120 is provided with an inflation direction, and the inflation direction is opposite to the protruding direction of the fixing assembly 110.

[0045] Specifically, the protruding fixing assembly 110 provides a certain resistance and limit to the movement of the mating protrusion 310 in the first direction. The inflation direction is opposite to the protruding direction of the fixing assembly 110, avoiding the influence of the expandable bladder 120 on the limiting effect of the fixing assembly 110 during the switching process between the contracted state and the inflated state.

[0046] Further, when the fixing component 110 and the mating protrusion 310 are in the first state, at least one of the plurality of mating protrusions 310 is disposed between two adjacent fixing components 110, and at least one of the plurality of fixing components 110 is disposed between two adjacent mating protrusions 310; when the fixing component 110 and the mating protrusion 310 are in the second state, at least one mating protrusion 310 is disposed in the accommodation space 113; wherein, when the fixing component 110 and the mating protrusion 310 are switched between the first state and the second state, the connecting member 300 is subjected to a force in the first direction to tighten the constriction band 100 around the organ.

[0047] Specifically, when the fixing component 110 and the mating protrusion 310 are in the first state, at least one of the plurality of mating protrusions 310 is disposed between two adjacent fixing components 110, and at least one of the plurality of fixing components 110 is disposed between two adjacent mating protrusions 310. It can be obtained that the number of the plurality of fixing components 110 and the plurality of mating protrusions 310 is the same, which can avoid waste of resources; and the fixing component 110 and the mating protrusion 310 are arranged in one-to-one correspondence, so that when the fixing component 110 and the mating protrusion 310 are in the second state, the fixing component 110 and the mating protrusion 310 can cooperate better.

[0048] Preferably, when at least part of the mating protrusion 310 is disposed in the first groove 131 and the second groove 132, the fixing component 110 and the mating protrusion 310 are in the first state; when at least part of the mating protrusion 310 is disposed in the first groove 131 and not in the second groove 132, the fixing component 110 and the mating protrusion 310 are in the second state.

[0049] Further, the mating protrusion 310 is provided with a highest protrusion 311, and the thickness of the mating protrusion 310 gradually decreases from the highest protrusion 311 towards both ends.

[0050] Specifically, the mating protrusion 310 is provided with a highest protrusion 311, and its thickness gradually decreases from the highest protrusion 311 towards both ends, making it easier for the mating protrusion 310 to pass through the accommodation space 113 formed by the fixing component 110, and enabling the switching between the first state and the second state of the fixing component 110 and the mating protrusion 310 to be more smooth.

[0051] Further, the cross-section of the mating protrusion 310 on the second plane is circular; at the highest protrusion 311, the diameter of the circle is greater than the first distance.

[0052] Specifically, the second plane is the plane formed by the D1 direction and the D2 direction. The cross-section of the mating projection 310 on the second plane being circular enables the mating projection 310 to more easily switch between the first state and the second state; at the highest projection 311, by making the diameter of the circle larger than the first distance, the movement of the mating projection 310 is restricted to a certain extent.

[0053] Furthermore, the shrinkable band 100, the fixing component 110, the connecting member 300, and the mating projection 310 are all elastic members.

[0054] Specifically, the shrinkable band 100, the fixing component 110, the connecting member 300, and the mating projection 310 are made of silica gel, which has the advantages of being safe, non-toxic, insoluble in water and any solvent, and having stable chemical properties.

[0055] Furthermore, the fixing component 110 and the shrinkable band 100 are integrally formed; the mating projection 310 and the connecting member 300 are integrally formed.

[0056] Specifically, the fixing component 110 and the shrinkable band 100 are integrally formed and connected. The manufacturing process is simple, and the integral structure can enhance the firmness of the connection between the fixing component 110 and the shrinkable band 100, making the structure of the shrinkable band 100 more compact; the mating projection 310 and the connecting member 300 are integrally formed and connected. The manufacturing process is simple, and the integral structure can enhance the firmness of the connection between the mating projection 310 and the connecting member 300, making the structure of the connecting member 300 more compact.

[0057]

Embodiment 2

[0058] Refer to Figures 2 - 6 , this embodiment also provides a medical device, including a brake, a connector 20, and a shrinkable structure 10 as described in the first embodiment above. The brake is used to control the contraction and expansion of the inflatable bladder 120 at regular intervals; one end of the connector 20 is connected to the brake; the shrinkable structure 10 is connected to the other end of the connector 20.

[0059] Specifically, this embodiment can achieve the technical effects of the shrinkable structure 10 corresponding to any of the technical solutions in the first embodiment above, which will not be elaborated here.

[0060] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A collapsible structure (10), characterized in that: The collapsible structure (10) comprises: A contraction belt (100), wherein a plurality of protruding fixing components (110) are provided on the contraction belt (100), an expandable bladder (120) is provided inside the fixing component (110), and the expandable bladder (120) is provided with an expansion direction, and the expansion direction is opposite to the protruding direction of the fixing component (110); A closing piece (200), the closing piece (200) being connected to one end of the shrink band (100); A connecting piece (300), the connecting piece (300) is connected to the shrink band (100) and is arranged in the same direction as the shrink band (100), and the connecting piece (300) is provided with a plurality of matching protrusions (310), and the matching protrusions (310) are arranged along the circumference of the connecting piece (300); The movement of the connecting member (300) on the contraction band (100) is limited by the fixing assembly (110) and the matching protrusion (310); when the inflatable bladder (120) is in a contracted state, the fixing assembly (110) contracts to allow the contraction band (100) to loosen the organ; when the inflatable bladder (120) is in an inflated state, the fixing assembly (110) expands to allow the contraction band (100) to tighten the organ; The fixing assembly (110) comprises: A first fixing member (111), wherein a first expandable bag is provided in the first fixing member (111); a second fixing member (112), wherein the second fixing member (112) and the first fixing member (111) are respectively arranged on two sides of the shrinkage band (100), and a second expandable bag is arranged inside the second fixing member (112); There is a first distance between the second fixing member (112) and the first fixing member (111), and a receiving space (113) is formed.

2. The collapsible structure (10) according to claim 1, characterized in that When the fixing component (110) and the matching protrusion (310) are in a first state, at least one matching protrusion (310) among the plurality of matching protrusions (310) is disposed between two adjacent fixing components (110), and at least one fixing component (110) among the plurality of fixing components (110) is disposed between two adjacent matching protrusions (310); When the fixing assembly (110) and the matching protrusion (310) are in a second state, at least one matching protrusion (310) is disposed in the accommodating space (113); Wherein, when the fixing assembly (110) and the matching protrusion (310) are switched between the first state and the second state, the connecting member (300) is subjected to a force in a first direction so that the contraction band (100) tightens the organ.

3. The collapsible structure (10) according to claim 1, characterized in that The matching protrusion (310) is provided with a highest protrusion (311), and the thickness of the matching protrusion (310) gradually decreases from the highest protrusion (311) toward both ends.

4. The collapsible structure (10) according to claim 3, characterized in that The cross section of the matching protrusion (310) on the second plane is circular; At the highest protrusion (311), the diameter of the circle is greater than the first spacing.

5. The collapsible structure (10) according to claim 1, characterized in that The shrink band (100), the fixing assembly (110), the connecting member (300) and the matching protrusion (310) are all elastic members.

6. The collapsible structure (10) according to claim 1, characterized in that The fixing assembly (110) and the shrink band (100) are integrally formed; The matching protrusion (310) and the connecting piece (300) are integrally formed.

7. A medical device, characterized in that: The medical device comprises: A brake, the brake being used to control the contraction and expansion of the inflatable bladder (120) in a timely manner; A connector (20), one end of which is connected to the brake; The contractible structure (10) according to any one of claims 1 to 6, wherein the contractible structure (10) is connected to the other end of the connector (20).

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