Drug stent gripping and storage device

Abstract

The present invention provides a device for crimping and holding a drug stent, comprising a crimping box, a crimping box cover adapted to the crimping box, and a crimping belt fixed in the crimping box, wherein the crimping belt is used to crimp the drug stent; the crimping box cover is used to press on the crimping box to prevent the drug stent in the crimping box from popping out. The device for crimping and holding a drug stent adds a crimping box cover adapted to the crimping box to the crimping box, and when the crimping belt is pulled to crimp the drug stent, the crimping box cover can play a role in pressing the drug stent, preventing the drug stent from becoming longer during the crimping process and popping out of the crimping box.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a drug stent compression and storage device. Background Art

[0002] Drug-eluting stents can directly contact the mucosa, accurately release a certain amount of hormones within a certain period of time, and maintain the sinus opening opened by surgery without considering the patient's compliance. They can also reduce postoperative complications and reduce postoperative interference to enhance the surgical effect.

[0003] However, when the drug stent is in use, it is necessary to compress and grip the drug stent, but there are deficiencies in the current drug stent compression and gripping storage devices.

[0004] For example, a Chinese patent with publication number CN 109620491A discloses a stent radial uniform crimping tool and a method of using the same, comprising a fixing box and a crimping ring; the fixing box comprises a hollow cylinder provided with a tangential groove, and a fixing bayonet is provided on the outer surface of the cylinder; the crimping ring is composed of a first and a second rectangular sheet connected; the first rectangular sheet is provided with a diameter control groove, and the end of the second rectangular sheet can pass through the diameter control groove and slide freely; the second rectangular sheet is provided with a plurality of linearly arranged fixing grooves; the end of the first rectangular sheet is fixed to the inner wall of the fixing box, the diameter control groove is located at the center of the tangential groove, and the end of the second rectangular sheet passes through the diameter control groove and the tangential groove in sequence, and by pulling the end of the second rectangular sheet, the crimping ring forms a cylindrical ring with uniform radial crimping force, and the diameter of the crimping ring is locked by the fixing bayonet on the fixing box and the fixing groove on the second rectangular sheet. The problem of low cost, disposable use, and sterilization treatment before use is met, but when doctors actually operate and use it, there is a risk of the stent popping out and the stent needs to be manually grasped to install it into the delivery system. If the stent pops out and touches the ground, it may easily cause infection, and if it is squeezed again, it may cause damage to the stent, making the operation impossible.

[0005] Therefore, it is necessary to provide a novel drug stent compression and storage device to solve the above problems existing in the prior art. Summary of the invention

[0006] The object of the present invention is to provide a drug stent crimping and storage device to prevent the drug stent from popping out during the crimping process.

[0007] To achieve the above-mentioned purpose, the drug stent crimping and storage device of the present invention includes a crimping box, a crimping box cover adapted to the crimping box, and a crimping belt fixed in the crimping box, the crimping belt is used to crimp the drug stent, and the crimping box cover is used to press on the crimping box to prevent the drug stent in the crimping box from popping out.

[0008] The beneficial effect of the present invention is that a crimping box cover adapted to the crimping box is added to the crimping box, and when the crimping belt is pulled to crimp the drug stent, the crimping box cover can press the drug stent to prevent the drug stent from becoming longer during the crimping process and popping out of the crimping box.

[0009] Preferably, the crimping box includes a first wall, on which a crimping belt outlet is provided, and the crimping box cover includes a second wall, on which a secondary crimping belt outlet adapted to the crimping belt outlet is provided. The beneficial effect is that the crimping belt outlet is provided to facilitate pulling the crimping belt.

[0010] Further preferably, a pressure plate is provided on the first wall, which has the beneficial effect of preventing the pressure grip belt from popping out of the pressure grip box when in a relaxed state.

[0011] Further preferably, a crimping belt connection part is also provided on the first wall, and the crimping belt connection part is opposite to the crimping belt outlet, the crimping belt is connected to the crimping belt connection part, the crimping belt passes through the crimping belt outlet, and the material of the crimping belt is an elastic medical material. Its beneficial effect is that it is convenient to pull the crimping belt from both sides, so that the drug stent can be maintained in the middle of the crimping box, and the drug stent is prevented from moving with the crimping belt, and the material of the crimping belt is an elastic medical material, so that the drug stent after crimping can be easily taken out.

[0012] Further preferably, a crimping belt connection portion is further provided on the first wall, the crimping belt connection portion is adjacent to the crimping belt outlet, the crimping belt is connected to the crimping belt connection portion, the crimping belt passes through the crimping belt outlet, and the crimping belt is made of an elastic medical material. The beneficial effect is that the crimping belt is made of an elastic medical material and can be restored in a relaxed state, so that the drug stent delivery system can install the crimped drug stent without manual installation, thereby avoiding contamination of the drug stent by hands.

[0013] Further preferably, the crimping box cover further includes a first cover portion, the first cover portion is connected to the second wall, and the first cover portion is convex.

[0014] Further preferably, the first cover is in a hollow cone shape, and the bottom surface of the first cover is a circular opening. The beneficial effect is that the first cover is in a hollow cone shape, which can make the top of the drug stent that is elongated by being pressed and gripped always close to the inner wall of the first cover, play a role in limiting the drug stent and preventing the drug stent from popping out of the pressing and gripping belt.

[0015] Further preferably, the first cover is in the shape of a hollow truncated cone, and the bottom surface with a larger area in the second cover is a circular opening. The beneficial effect is that the first cover is in the shape of a hollow truncated cone, which can make the top of the drug stent that is elongated by being pressed and gripped always close to the inner wall of the first cover, play a role in limiting the position of the drug stent, and prevent the drug stent from popping out of the pressing and gripping belt.

[0016] Further preferably, a central column is provided on the first cover, and the central column is arranged along the central axis of the first cover and extends into the second wall. The beneficial effects are: the central column is conducive to fixing the small-sized drug stent, preventing the small-sized drug stent from shaking in the crimping box; the central column is conducive to preventing the opposite surfaces of the drug stent from being tangled with each other, and preventing the drug stent from being difficult to rebound after being released; the central column is conducive to correcting the drug stent, preventing the drug stent from tilting after being crimped, and facilitating the subsequent storage of the drug stent.

[0017] Further preferably, the crimping box cover further comprises a second cover portion, the second cover portion is connected to the upper side of the second wall, the second cover portion comprises a first portion and a second portion, and the first portion and the second portion are not in the same plane. The beneficial effect is that the first portion and the second portion are not in the same plane, which is conducive to limiting the drug stent that is continuously lengthened due to crimping, preventing the sinus drug stent from popping out, and can also reduce the height of the crimping box cover and reduce the volume.

[0018] Further preferably, the first part includes a first side and a second side, the second part includes a third side and a fourth side, the first side and the third side are both arc-shaped, the second side and the fourth side are both straight sides, and the midpoint of the second side, the intersection of the vertical line on the midpoint of the second side and the first side, the midpoint of the fourth side, the intersection of the vertical line on the midpoint of the fourth side and the second side, and the center point of the secondary crimping belt outlet are located in the same plane. The beneficial effect is that the angle change of the second part can ensure that the top of the drug stent that is elongated by being crimped is always close to the second part, preventing the drug stent from popping out due to excessive space above the drug stent.

[0019] Further preferably, the first wall and the second wall are both hollow cylindrical, a block is provided on the first wall, and a slot matching the block is provided on the second wall. The beneficial effect is that the first wall and the second wall are both hollow cylindrical, which prevents the first wall and the second wall from rotating relative to each other during use.

[0020] Further preferably, one end of the card slot is provided with an open mouth, and the width of the open mouth is greater than or equal to the width of the other end of the card slot. The beneficial effect is that the card block is easy to be inserted into the card slot. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the drug stent compression and storage device of the present invention;

[0022] Figure 2 is a schematic diagram of the structure of a crimping box in some embodiments of the present invention;

[0023] Figure 3 is a schematic structural diagram of a crimping belt in some embodiments of the present invention;

[0024] Figure 4 Schematic diagram of the structure of the crimping box in some other embodiments of the present invention;

[0025] Figure 5 It is a schematic diagram of the structure of the crimping box cover in some embodiments of the present invention;

[0026] Figure 6 Schematic diagram of the structure of the crimping box cover in some other embodiments of the present invention. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Unless otherwise defined, the technical terms or scientific terms used herein should be understood by people with general skills in the field to which the present invention belongs. "Including" and similar words used in this article mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects.

[0028] In view of the problems existing in the prior art, an embodiment of the present invention provides a drug stent compression and storage device, referring to Figure 1 The drug stent crimping and storage device 10 comprises a crimping box 11, a crimping box cover 12 adapted to the crimping box 11, and a crimping belt 13 fixed in the crimping box 11. The crimping belt 13 is used to crimp the drug stent; the crimping box cover 12 is used to press on the crimping box 11 to prevent the drug stent in the crimping box 11 from popping out. Specifically, the drug stent is a sinus drug stent.

[0029] Figure 2 FIG. 1 is a schematic diagram of the structure of the crimping box in some embodiments of the present invention. Figure 1 and Figure 2The crimping box 11 includes a first wall 111 and a base 112. The first wall 111 is provided with a crimping belt outlet 113 and a crimping belt connecting portion 114 which are opposite to each other. The crimping belt 13 is connected to the crimping belt connecting portion 114. The crimping belt 13 passes through the crimping belt outlet 113. The crimping belt 13 is made of an elastic medical material. Preferably, the crimping belt 13 is made of medical polyethylene terephthalate (PET). After the drug stent is pressed and gripped, since the height of the pressing and gripping belt 13 is lower than the height of the drug stent after pressing and gripping, the funnel in the drug stent delivery system is pressed on the drug stent, and part of the drug stent will enter the funnel. The pressing and gripping belt 13 is released. Since the material of the pressing and gripping belt 13 is an elastic medical material, the pressing and gripping belt 13 will quickly recover and will not continue to be fixed on the bottom of the pressed and gripped drug stent. Continuing to press the funnel will allow the drug stent to completely enter the funnel, and there is no need for medical personnel to pinch the pressed and gripped drug stent by hand for installation, thus avoiding hand contact and thus avoiding hand contamination of the drug stent. The drug stent delivery system is a well-known technology in the art and will not be described in detail here.

[0030] In some specific embodiments of the present invention, referring to Figure 2 The base 112 is circular, the first wall 111 is hollow cylindrical, and the line connecting the crimping belt outlet 113 and the crimping belt connecting portion 114 intersects with the vertical line at the center of the base 112 .

[0031] Figure 3 Schematic diagram of the structure of the pressure grip belt in some embodiments of the present invention. Figure 2 and Figure 3 The crimping and gripping belt 13 is in the shape of a long strip, and includes a first crimping and gripping belt portion 131 and a second crimping and gripping belt portion 132 connected in sequence in the length direction, the width of the first crimping and gripping belt portion 131 is greater than the width of the second crimping and gripping belt portion 132, and the length of the second crimping and gripping belt portion 132 is greater than the length of the first crimping and gripping belt portion 131, and a cross-section 1311 is provided on one side where the first crimping and gripping belt portion 131 and the second crimping and gripping belt portion 132 are connected, and the length of the cross-section 1311 is greater than the width of the second crimping and gripping belt portion 132, so that the second crimping and gripping belt portion 132 can pass through the cross-section 1311 to form an annular crimping and gripping portion (not shown in the figure), and the annular crimping and gripping portion is used to place a drug stent, and when the other end of the second crimping and gripping belt portion is pulled, the annular crimping and gripping portion is contracted to crimp the drug stent. The other end of the first crimping belt portion 131 is connected to the crimping belt connecting portion 114 , and the other end of the second crimping belt portion 132 passes through the crimping belt outlet 113 .

[0032] In some other embodiments of the present invention, the crimping belt is in the shape of an elongated strip, and is provided with a first intersection portion and a second intersection portion, and the first intersection portion and the second intersection portion are both composed of a plurality of rectangular sheets, and there are gaps between the rectangular sheets, and the rectangular sheets of the first intersection portion and the rectangular sheets of the second intersection portion mutually pass through the corresponding gaps, so that the crimping belt crosses to form an annular crimping portion, and the annular crimping portion is used to place a drug stent, and contracts when the crimping belt is pulled to crimp the drug stent. One end of the crimping belt is connected to the crimping belt connection portion, and the other end of the crimping belt passes through the crimping belt outlet.

[0033] Figure 4 Schematic diagram of the structure of the crimping box in other embodiments of the present invention. Figure 4 The crimping box 11 includes a first wall 111 and a base 112. The first wall 111 is provided with a crimping belt outlet 113 and a crimping belt connecting portion 114 located adjacent to each other. The crimping belt 13 is connected to the crimping belt connecting portion 114. The crimping belt 13 passes through the crimping belt outlet 113. The crimping belt 13 is made of an elastic medical material. Preferably, the crimping belt is made of medical polyethylene terephthalate (PET). After the drug stent is crimped, since the height of the crimping belt 13 is lower than the height of the drug stent after crimping, the funnel in the drug stent delivery system is pressed onto the drug stent, and part of the drug stent will enter the funnel. The crimping belt 13 is released. Since the material of the crimping belt 13 is an elastic medical material, the crimping belt 13 will quickly recover and will not continue to be fixed on the bottom of the crimped drug stent. Continuing to press the funnel will allow the drug stent to completely enter the funnel, without the need for medical personnel to pinch the crimped drug stent for installation by hand, thus avoiding hand contact and correspondingly avoiding hand contamination of the drug stent.

[0034] In some embodiments of the present invention, the starting end of the crimping belt is arranged along the inner wall of the first wall, and one end is fixed to the crimping belt connecting part, so that when the crimping belt is in a natural state, it is tightly attached to the inner wall of the first wall in the crimping box.

[0035] In some embodiments of the present invention, referring to Figure 4 At least one pressing plate 116 is disposed on the first wall 111, and the pressing plate 116 faces the central axis of the first wall 111. Preferably, there are three pressing plates 116, wherein the centers of gravity of two pressing plates 116 and the central axis of the first wall 111 are located in the same plane.

[0036] Figure 5 Schematic diagram of the cross-sectional structure of the crimping box cover in some embodiments of the present invention. Figures 2 to 5The crimping box cover 12 includes a second wall 121 and a first cover portion 122. The first cover portion 122 is connected to the second wall 121, and the first cover portion 122 is convex. The second wall 121 is provided with a secondary crimping belt outlet 123 that is compatible with the crimping belt outlet 113.

[0037] In some preferred embodiments of the present invention, the first cover portion is in the shape of a hollow cone, and the bottom surface of the first cover portion is a circular opening, specifically a first circular opening. Wherein, the top of the drug stent that is lengthened by being pressed and gripped can be kept close to the inner wall of the first cover portion, which plays a role in limiting the drug stent and preventing the drug stent from popping out of the pressing and gripping belt. The second wall is in the shape of a hollow cylinder, including a second circular opening and a third circular opening with the same inner diameter. The first circular opening and the second circular opening have the same inner diameter, and the first circular opening and the second circular opening are connected so that the first cover portion and the second wall are connected. A central column is provided on the first cover portion, and the central column is arranged along the central axis of the first cover portion and extends into the second wall.

[0038] In some preferred embodiments of the present invention, referring to Figure 2 and Figure 5 , the first cover part 122 is in the shape of a hollow truncated cone, and the bottom surface with a larger area in the first cover part 122 is a circular opening, specifically a first circular opening 1221, and the other bottom surface of the first cover part is a truncated cone surface 1222. Among them, the top of the drug stent that is elongated by being pressed and gripped can always be close to the inner wall of the first cover part 122, which plays a role in limiting the drug stent and preventing the drug stent from popping out of the pressing and gripping belt 13. The second wall 121 is in the shape of a hollow cylinder, including a second circular opening 1211 and a third circular opening 1212 with the same inner diameter. The first circular opening 1221 and the second circular opening 1211 have the same inner diameter, and the first circular opening 1221 and the second circular opening 1211 are connected to connect the first cover part 122 and the second wall 121. A central column is provided on the first cover part 122. Specifically, a central column 1223 is provided on the truncated table surface 1222, and the central column 1223 is arranged along the central axis of the first cover portion 122 and extends into the second wall 121. The central column 1223 is conducive to fixing the small-sized drug stent, preventing the small-sized drug stent from shaking in the crimping box, preventing the opposite surfaces of the drug stent from being tangled with each other, and preventing the drug stent from being difficult to rebound after being released, and is also conducive to correcting the drug stent, preventing the drug stent from tilting after being crimped, and facilitating the subsequent storage of the drug stent.

[0039] In some preferred embodiments of the present invention, the secondary crimping belt outlet is arranged on the third circular opening.

[0040] In some preferred embodiments of the present invention, Figure 2 The crimping box and Figure 5 The crimping box covers shown are a set and are used in conjunction with each other.

[0041] Figure 6 Schematic diagram of the structure of the crimping box cover in some embodiments of the present invention. Figure 6 The crimping box cover 12 includes a second wall 121 and a second cover portion 124, the second cover portion 124 is connected to the upper side of the second wall 121, the second cover portion 124 includes a first portion 1241 and a second portion 1242, and the first portion 1241 and the second portion 1242 are not in the same plane, and the second wall 121 is provided with a secondary crimping belt outlet 123 that matches the crimping belt outlet 113. Preferably, the secondary crimping belt outlet 123 is provided on the third round opening 1212. The first part 1241 includes a first side (not marked in the figure) and a second side (not marked in the figure), and the second part 1242 includes a third side (not marked in the figure) and a fourth side (not marked in the figure), the first side and the third side are both arc-shaped, the second side and the fourth side are both straight sides, and the midpoint of the second side, the intersection of a vertical line on the midpoint of the second side and the first side, the midpoint of the fourth side, the intersection of a vertical line on the midpoint of the fourth side and the second side, and the center point of the secondary crimping belt outlet 123 are located in the same plane, ensuring that the angle change of the second part can make the top of the drug stent that is lengthened by being crimped always close to the second part, preventing the drug stent from popping out due to excessive space above the drug stent.

[0042] In some preferred embodiments of the present invention, referring to Figure 5 and Figure 6 The crimping belt outlet 113 is rectangular and matches the crimping belt 13 , which can prevent the crimping belt 13 from being twisted and squeezed in the crimping belt outlet 113 .

[0043] In some preferred embodiments of the present invention, referring to Figure 6 The second wall 121 is in a hollow cylindrical shape, including a circular opening 1213 and a special-shaped opening 1214, and the first portion 1241 and the second portion 1242 are arranged on the special-shaped opening 1214 to seal the special-shaped opening 1214. Specifically, the first portion 1241 is parallel to the circular opening 1213, and the minimum distance from the midpoint of the second side to the plane where the circular opening 1213 is located is greater than the minimum distance from the intersection of the vertical line on the midpoint of the fourth side and the second side to the plane where the circular opening 1213 is located.

[0044] In some preferred embodiments of the present invention, Figure 4 The crimping box and Figure 6 The crimping box covers shown are a set and are used in conjunction with each other.

[0045] In some specific embodiments of the present invention, referring to Figure 2 and Figure 4 The inner diameter of the first wall 111 is 45.05-45.15 mm, the outer diameter of the first wall 111 is 47.45-47.55 mm, and the height of the first wall 111 is 13.75-13.65 mm.

[0046] In some specific embodiments of the present invention, referring to Figure 5 and Figure 6 The inner diameters of the first circular opening 1221, the second circular opening 1211, the third circular opening 1212 and the circular opening are 48.35-48.45 mm, the outer diameters of the first circular opening 1221, the second circular opening 1211, the third circular opening 1212 and the circular opening are 50.95-51.05 mm, the diameter of the frustum 1222 is 6.95-7.05 mm, the height of the second wall 121 is 13.45-13.55 mm, the height of the first cover portion 122 is 13.45-13.55 mm, the center column 1223 is frustum-shaped, and the center column 1223 includes a first bottom surface (not shown in the figure) and a second bottom surface (not shown in the figure), and the diameter of the first bottom surface is smaller than the diameter of the second bottom surface. Specifically, the diameter of the first bottom surface is 1.45-1.55 mm, the diameter of the second bottom surface is 1.95-2.05 mm, the length of the central column is 18.25-18.35 mm, and the second bottom surface is connected to the first cover portion 122. The setting of each size can be suitable for the compression and gripping of drug stents of all specifications, so that the top of the drug stent of all specifications can move along the inner wall of the first cover portion 122 or the second cover portion 124 when the drug stents are compressed and gripped.

[0047] In some embodiments of the present invention, referring to Figure 2 , Figure 4 , Figure 5 and Figure 6 , the first wall 111 is in the shape of a hollow cylinder, and a block 115 is provided on the first wall 111. Preferably, the block 115 is arranged on the outer side of the first wall 111. A slot (not shown in the figure) matching the block is provided on the second wall 121, and an open mouth (not shown in the figure) is provided at one end of the slot, and the width of the open mouth is greater than or equal to the width of the other end of the slot. Specifically, the slot is rectangular, and the length of the rectangle is along the vertical direction of the second wall, and the open mouth faces downward. The first wall 111 and the second wall 121 are both in the shape of a hollow cylinder, and the mutual cooperation between the block 115 and the slot can prevent the first wall 111 and the second wall 121 from rotating relative to each other during use.

[0048] In some embodiments of the present invention, referring to Figure 2 , Figure 4 , Figure 5 and Figure 6 The inner diameter of the second wall 121 is greater than the outer diameter of the first wall 111 , so as to facilitate pressing the crimping box cover 12 onto the crimping box 11 .

[0049] Although the embodiments of the present invention are described in detail above, it is obvious to those skilled in the art that various modifications and variations can be made to these embodiments. However, it should be understood that such modifications and variations are within the scope and spirit of the present invention as described in the claims. Moreover, the present invention described herein may have other embodiments and may be implemented or realized in a variety of ways.

Claims

1. A drug stent compression and storage device, characterized in that: The invention comprises a crimping box, a crimping box cover matched with the crimping box, and a crimping belt fixed in the crimping box, wherein the crimping belt is used to crimp a drug holder, and the crimping box cover is used to press on the crimping box to prevent the drug holder in the crimping box from popping out, the crimping box comprises a first wall, a crimping belt outlet is arranged on the first wall, the crimping box cover comprises a second wall, a secondary crimping belt outlet matched with the crimping belt outlet is arranged on the second wall, a pressing plate is arranged on the first wall, and the crimping box cover also comprises a second cover part, and the second cover part and the second wall are connected to each other. The second cover portion includes a first portion and a second portion, and the first portion and the second portion are not in the same plane, the first portion includes a first side and a second side, the second portion includes a third side and a fourth side, the first side and the third side are both arc-shaped, the second side and the fourth side are both straight sides, and the midpoint of the second side, the intersection of a vertical line on the midpoint of the second side and the first side, the midpoint of the fourth side, the intersection of a vertical line on the midpoint of the fourth side and the second side, and the center point of the secondary crimping belt outlet are located in the same plane.

2. The drug stent crimping and storage device according to claim 1, characterized in that: A crimping belt connection portion is also provided on the first wall, and the crimping belt connection portion is opposite to the crimping belt outlet, the crimping belt is connected to the crimping belt connection portion, the crimping belt passes through the crimping belt outlet, and the crimping belt is made of elastic medical material.

3. The drug stent crimping and storage device according to claim 2, characterized in that: A crimping belt connection portion is also provided on the first wall. The crimping belt connection portion is adjacent to the crimping belt outlet. The crimping belt is connected to the crimping belt connection portion. The crimping belt passes through the crimping belt outlet. The crimping belt is made of elastic medical material.

4. The drug stent crimping and storage device according to claim 1, characterized in that: The first wall and the second wall are both hollow cylindrical, a clamping block is provided on the first wall, and a clamping groove matching the clamping block is provided on the second wall.

5. The drug stent crimping and storage device according to claim 4, characterized in that: An open mouth is provided at one end of the card slot, and the width of the open mouth is greater than or equal to the width of the other end of the card slot.

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