CN113576610A - Ostomy appliance - Google Patents

Abstract

The embodiment of the invention discloses an ostomy appliance, which comprises a first pipe body, a second pipe body, a first transmission piece, a first grabbing piece, a second transmission piece, a second grabbing piece and a cutting piece, wherein one end of the first pipe body is provided with a containing opening, the second pipe body is movably arranged in the first pipe body in a penetrating manner, the first transmission piece is movably arranged in the second pipe body in a penetrating manner, the first grabbing piece is connected with one end, close to the containing opening, of the first transmission piece, the second transmission piece is movably arranged in the second pipe body in a penetrating manner, the second grabbing piece is connected with one end, close to the containing opening, of the second transmission piece, the cutting piece is positioned at the containing opening, and one end, close to the containing opening, of the second pipe body is provided with a puncture part for puncturing biological tissues. The first grabbing piece and the second grabbing piece are used for being folded in the second tube body after being radially deformed and penetrating the biological tissue along with the second tube body to move to two sides of the biological tissue respectively, and are also used for being radially expanded after leaving the second tube body and clamping the biological tissue on two sides under the action of the first transmission piece and the second transmission piece respectively, and used for grabbing the clamped biological tissue to the accommodating port, and the cutting piece is used for cutting the biological tissue.

Description

Ostomy appliance

Technical Field

The invention relates to the technical field of medical instruments, in particular to an ostomy instrument.

Background

Heart failure is a heart disease with a high incidence rate, and is classified into diastolic heart failure and systolic heart failure. For the treatment of diastolic heart failure, a small hole is made in the atrial septum of the heart of the patient to form a left-right shunt, thereby reducing the pressure in the left atrium of the heart failure patient.

The prior art ostomy appliances typically employ a balloon to expand the puncture site after puncturing the interatrial septum tissue to form a larger sized opening. Because the interatrial septum tissue has a certain resilience, when the balloon is withdrawn, the tissue is often retracted, resulting in the reduction or even the closure of the opening.

Disclosure of Invention

Based on this, there is a need for an ostomy appliance in which the posterior stoma opening is less prone to springing back.

An ostomy appliance comprises a first tube body, a second tube body, a first transmission piece, a first grabbing piece, a second transmission piece, a second grabbing piece and a cutting piece, wherein one end of the first tube body is provided with an accommodating opening;

the first grabbing piece and the second grabbing piece are used for being folded in the second tube body after being radially deformed and penetrating the biological tissue along with the second tube body so as to respectively move to two sides of the biological tissue, and are also used for being radially expanded after leaving the second tube body and respectively clamping the biological tissue at two sides under the action of the first transmission piece and the second transmission piece, grabbing the clamped biological tissue to the accommodating opening, and the cutting piece is used for cutting the biological tissue accommodated in the accommodating opening.

In some embodiments of the ostomy appliance, the first grasping member comprises a first fixing portion, a first bending portion and a first grasping portion connected in sequence, the first fixing portion is connected with the first transmission member, the first bending portion is used for bending to change the posture of the first grasping portion, and the first grasping portion is used for abutting against the biological tissue;

the second grabbing piece comprises a second fixing part, a second bending part and a second grabbing part which are sequentially connected, the second fixing part is connected with the second transmission part, the second bending part is used for bending to change the posture of the second grabbing part, and the second grabbing part is used for abutting against the biological tissue.

In some embodiments of the ostomy appliance, the number of the first gripping member and the second gripping member is two or more, the ostomy appliance further comprises a fixing ring for fixing the first fixing part or the second fixing part, and the fixing ring is fixedly connected with one end of the first transmission member or the second transmission member close to the receiving opening.

In some embodiments of the ostomy appliance, the first gripping portion and the second gripping portion each have barbs distributed thereon for embedding into the biological tissue;

when the first grasping part and the second grasping part clamp the biological tissue at two sides, the barbs face the biological tissue.

In some embodiments of the ostomy appliance, the barbs are plural in number and arranged at the side of the first and second gripping parts.

In some embodiments of the ostomy appliance, the second transmission member is hollow, and the first transmission member is movably disposed through the second transmission member.

In some embodiments of the ostomy appliance, when the first and second grasping elements clamp the biological tissue on both sides, the projections of the first and second grasping elements on a plane perpendicular to the axial direction of the first tube overlap.

In some embodiments of the ostomy appliance, the cutting member comprises a deformable cutting portion arranged around the receiving opening, a first stretching portion fixed inside the first tube, and a second stretching portion movably arranged inside the first tube for tensioning the cutting portion to cut the biological tissue.

In some embodiments of the ostomy appliance, the first tube defines two stretching channels extending axially through the first tube, and the first stretching portion and the second stretching portion are disposed in the two stretching channels, respectively.

In some embodiments of the ostomy appliance, the ostomy appliance further comprises a control handle fixed to an end of the first tube body away from the receiving opening, the second tube body, the first transmission member and the second transmission member are all connected to the control handle, and the control handle is used for controlling the second tube body, the first transmission member and the second transmission member to move axially along the first tube body.

The embodiment of the invention has the following beneficial effects:

according to the ostomy appliance provided by the embodiment, before the stoma, the first transmission piece and the second transmission piece are controlled so that the first grabbing piece and the second grabbing piece are gathered in the second tube body. After the ostomy device is close to the biological tissue, the second tube body is controlled to move towards the biological tissue and puncture the biological tissue through the puncture part, and the first grabbing piece and the second grabbing piece move along with the second tube body and respectively move to the inner side and the outer side of the biological tissue. Then, the second pipe body moves towards the direction close to the first pipe body so that the first grabbing piece and the second grabbing piece are separated from the constraint of the second pipe body, and the first grabbing piece and the second grabbing piece are both radially expanded. Then, the first transmission piece and the second transmission piece are controlled to enable the first grabbing piece and the second grabbing piece to be respectively abutted against two sides of the biological tissue, and then the first grabbing piece and the second grabbing piece are driven to move towards the first pipe body so as to drag the clamped biological tissue into the accommodating opening. Finally, the cutting piece cuts the biological tissue in the containing opening, thereby completing the stoma operation. Compared with the prior art, the ostomy appliance provided by the embodiment avoids the resilience of biological tissues through the opening formed by a cutting mode, thereby ensuring the stability of the opening.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Wherein:

figure 1 is a schematic structural view of an ostomy appliance provided in one embodiment.

Fig. 2 is an enlarged schematic view of a point a in fig. 1.

Figure 3 is a schematic view of a further state of the ostomy appliance provided in figure 1.

Figure 4 is a schematic view of a portion of the ostomy appliance provided in figure 3.

Figure 5 is a schematic view of a portion of the ostomy appliance provided in figure 4.

Fig. 6 is a schematic view of the first grasping element of fig. 5.

Figure 7 is a partial schematic structural view of the ostomy appliance provided in figure 4.

Fig. 8 is a schematic view of the second grasping element of fig. 7.

Fig. 9 is an assembly view of the first tube and the cutting member of fig. 1.

Fig. 10 is a cross-sectional view of the first tubular body of fig. 9.

Fig. 11 is a schematic view of the structure of the cutting member of fig. 9.

Reference numerals:

10-hook thorn;

110-a first tube, 112-a receiving opening, 114-a tension channel, 116-a through slot;

120-a second tube, 122-a piercing section;

130-a first transmission piece;

140-a first grasping member, 142-a first fixing portion, 144-a first bending portion, 146-a first grasping portion;

150-a second transmission member;

160-a second grasping member, 162-a second fixing portion, 164-a second bending portion, 166-a second grasping portion;

170-cutting, 172-cutting, 174-first stretching, 176-second stretching;

180-a fixed ring;

190-handle.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the embodiments of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the referred devices or elements must have specific orientations, be configured in specific orientations, and operate, and thus, should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present invention, it should be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "connected" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, interchangeably connected, or integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected through an intermediate medium, or communicated between two elements. Specific meanings of the above terms in the embodiments of the present invention can be understood in specific cases by those of ordinary skill in the art.

Referring to fig. 1 to 11, an embodiment of the present invention provides an ostomy apparatus, including a first tube 110 having a receiving opening 112 at one end, a second tube 120 movably inserted into the first tube 110, a first transmission member 130 movably inserted into the second tube 120, a first grasping member 140 connected to one end of the first transmission member 130 near the receiving opening 112, a second transmission member 150 movably inserted into the second tube 120, a second grasping member 160 connected to one end of the second transmission member 150 near the receiving opening 112, and a cutting member 170 located at the receiving opening 112, wherein one end of the second tube 120 near the receiving opening 112 has a puncturing portion 122 for puncturing biological tissue. The first grasping element 140 and the second grasping element 160 are configured to be radially deformed, then gathered in the second tube 120 and penetrate the biological tissue along with the second tube 120 to move to two sides of the biological tissue, respectively, and further configured to be radially expanded after leaving the second tube 120 and clamp the biological tissue on two sides under the action of the first transmission element 130 and the second transmission element 150, respectively, and further configured to grasp the clamped biological tissue to the receiving opening 112, and the cutting element 170 is configured to cut the biological tissue received in the receiving opening 112.

According to the ostomy appliance provided by the above embodiment, before the stoma, the first transmission member 130 and the second transmission member 150 are controlled to make the first gripping member 140 and the second gripping member 160 furled in the second tube 120. After the ostomy appliance approaches the biological tissue, the second tube 120 is controlled to move towards the biological tissue and the biological tissue is punctured by the puncturing part 122, and the first grasping element 140 and the second grasping element 160 move along with the second tube 120 and move to the inner side and the outer side of the biological tissue respectively. Then, the second tube 120 is moved toward the first tube 110 so that the first grasping element 140 and the second grasping element 160 are disengaged from the second tube 120, and both the first grasping element 140 and the second grasping element 160 are radially expanded. Then, the first transmission member 130 and the second transmission member 150 are controlled to make the first grasping member 140 and the second grasping member 160 respectively abut against two sides of the biological tissue, and then the first grasping member 140 and the second grasping member 160 are driven to move toward the first tube 110 to draw the clamped biological tissue into the receiving opening 112. Finally, the cutting member 170 cuts the biological tissue in the receiving port 112, thereby completing the stoma operation.

Compared with the prior art, the ostomy appliance provided by the embodiment avoids the resilience of biological tissues through the opening formed by a cutting mode, thereby ensuring the stability of the opening.

When the puncture portion 122 of the second tube 120 punctures the biological tissue, the puncture portion 122 forms a current path and punctures the biological tissue by an electrical cutting method. However, the main protection point of the present invention is the mechanical structure, and therefore, the circuit connection manner is not specifically described.

In addition, the ostomy appliance provided by the present embodiment is suitable for, but not limited to, cardiac ostomy procedures.

Referring to fig. 3-8, an ostomy appliance is described in detail below by way of one embodiment of the invention. It should be added that the radial and axial directions mentioned below are both radial and axial directions of the first tube 110, and therefore they are not described one by one.

Referring to fig. 6, in the present embodiment, the first grasping element 140 includes a first fixing portion 142, a first bending portion 144 and a first grasping portion 146, which are sequentially connected, the first fixing portion 142 is connected to the first transmission element 130, the first bending portion 144 is used for bending and changing a posture of the first grasping portion 146, and the first grasping portion 146 is used for abutting against a biological tissue.

Referring to fig. 8, in the present embodiment, the second grasping element 160 includes a second fixing portion 162, a second bending portion 164 and a second grasping portion 166, which are sequentially connected, the second fixing portion 162 is connected to the second transmission member 150, the second bending portion 164 is used for bending and changing the posture of the second grasping portion 166, and the second grasping portion 166 is used for abutting against the biological tissue.

As can be seen from fig. 6 and 8, the first grasping element 140 and the second grasping element 160 are similar in structure, and for the sake of brevity, only the first grasping element 140 will be described below. The first bending portion 144 has an arc-shaped structure, and the first fixing portion 142 and the first capturing portion 146 are straight sections. When the second tube 120 is accommodated, the first bending portion 144 is bent by the inner wall of the second tube 120, so that the first capturing portion 146 and the first fixing portion 142 are parallel or approximately parallel. When the second tube 120 is out of the first tube, the first bending portion 144 actively bends under the characteristic of the arc structure thereof, so that the first capturing portion 146 and the first fixing portion 142 form an angle, thereby enlarging the area of the first capturing portion 146 in the radial direction. With this structure, the range of the first grasping member 140 in the radial direction is easily controlled, and the operation is simple.

Of course, the straight section may be a plate-shaped straight section or an arc-shaped straight section.

Optionally, the first grasping element 140 is heat set to facilitate the first grasping element 140 to spring back to the expanded state when the first grasping element changes within the allowable range of deformation.

Optionally, the first grasping element 140 is made of a memory metal material.

Optionally, in the radially expanded state of the first grasping element 140, an included angle between the first grasping portion 146 and the first fixing portion 142 ranges from 90 ° to 180 °.

Preferably, the included angle between the first catching portion 146 and the first fixing portion 142 ranges from 120 ° to 150 °.

Referring to fig. 4, 5 or 7, in an embodiment of the invention, the number of the first grasping element 140 and the second grasping element 160 is two or more, the ostomy appliance further includes a fixing ring 180 for fixing the first fixing portion 142 or the second fixing portion 162, and the fixing ring 180 is fixedly connected to one end of the first transmission element 130 or the second transmission element 150 near the receiving opening 112. By designing two or more first grasping elements 140 and second grasping elements 160, the area of biological tissue that can be grasped by the ostomy appliance can be increased, increasing the diameter of the stoma.

Specifically, the first fixing portion 142 is fixedly connected to an inner wall of the fixing ring 180. The fixing mode can be welding or bonding.

Preferably, two or more first gripping members 140 are evenly disposed around the securing ring 180.

Referring still to fig. 4-8, in an embodiment of the present invention, barbs 10 for embedding into biological tissue are distributed on both the first gripping portion 146 and the second gripping portion 166. When the first grasping element 140 and the second grasping element 160 clamp the biological tissue on both sides, the barbs 10 are facing the biological tissue. When the first grasping portion 146 abuts against the biological tissue, the barb 10 pierces into the biological tissue, so that the first grasping portion 146 grasps the biological tissue more stably, and the biological tissue is prevented from being separated from the first grasping portion 146.

Of course, it should be noted that the radial width of the radially expanded first catching portion 146 is smaller than or equal to the diameter of the receiving opening 112.

Referring to fig. 5 to 8, in a more specific embodiment of the invention, the hooks 10 are plural and arranged at the side of the first catching portion 146 and the second catching portion 166.

Of course, the barbs 10 may be located on both sides of the first gripping portion 146 or on a single side of the first gripping portion 146.

The plurality of barbs 10 may be arranged uniformly or distributed in a staggered manner.

The shape formed by connecting the plurality of barbs 10 may be, but not limited to, a zigzag shape or a wavy shape.

The hook 10 may be an arc-shaped hook 10 bent in the direction of the first fixing portion 142 as shown in fig. 6, or may be a straight hook 10 extending in a plane as shown in fig. 7.

In this embodiment, the barb 10 is disposed on the side of the first catching portion 146, so that the barb 10 can be cut to facilitate manufacturing.

Referring to fig. 1-4, based on any of the above embodiments, another embodiment of the present invention is provided, in which the second transmission member 150 is disposed in a hollow manner, and the first transmission member 130 movably penetrates through the second transmission member 150. Compared with the first transmission member 130 and the second transmission member which are parallelly arranged in the second tube 120, the design can avoid the interference between the first transmission member 130 and the second transmission member 150 during movement, and in addition, the first transmission member 130, the second transmission member 150 and the second tube 120 can be coaxial, so that the subsequent grabbing and cutting work is facilitated.

In one embodiment, when the first grasping element 140 and the second grasping element 160 clamp the biological tissue on both sides, the projections of the first grasping element 140 and the second grasping element 160 on a plane perpendicular to the axial direction of the first tube 110 overlap. Thus, both sides of the same position of the biological tissue can be acted by force, which is beneficial to the grabbing work of the ostomy appliance.

It should be noted that when the barbs 10 of the first grasping element 140 and the second grasping element 160 are facing the biological tissue, the barbs 10 on the upper and lower sides of the biological tissue can cross each other, so as to clamp the biological tissue more stably.

Referring to fig. 9 and 11, the cutting member 170 includes a deformable cutting portion 172 surrounding the receiving opening 112, a first stretching portion 174 fixed in the first tube 110, and a second stretching portion 176 movably inserted in the first tube 110, wherein the second stretching portion 176 is used for tensioning the cutting portion 172 to cut the biological tissue. When the second stretching part 176 is stretched, the cutting part 172 receives a force from the second stretching part 176, so that the loop-shaped cutting part 172 is transformed into a straight line from the first stretching part 174 to the second stretching part 176, and the biological tissue gathered in the cutting part 172 is cut by the continuously contracted cutting part 172.

Of course, in order to facilitate the operation of the cutting member 170, the cutting member 170 also has a current loop, which is not specifically described herein.

Alternatively, the cutting portion 172 may be a flexible material, and the cutting portion 172 may be disposed on the outer circumference of the receiving opening 112 in any posture before cutting. The cutting portion 172 may be disposed to conform to an outer diameter of the first pipe 110 or may be disposed to conform to an inner diameter of the first pipe 110.

Specifically, the cut 172 is a combination of two opposing C-rings.

Referring to fig. 9 and 10, in an embodiment of the present invention, the first tube 110 is provided with two stretching passages 114 axially penetrating the first tube 110, and the first stretching portion 174 and the second stretching portion 176 are respectively disposed in the two stretching passages 114. This allows tensioning of the cutting section 172 by controlling the second stretching section 176 in the stretching tunnel 114. When the cutting portion 172 has the greatest tension, the cutting portion 172 forms a straight line from the first stretching portion 174 to the second stretching portion 176, and the rest is accommodated in the second stretching portion 176. A through groove 116 adapted to the second tube 120 is further disposed in the first tube 110, so that the second tube 120 slides, and the through groove 116 is communicated with the receiving opening 112.

Optionally, the depth of the receiving opening 112 is 0 to 20cm, preferably 5cm to 15 cm.

Referring to fig. 1 and 3, in another embodiment of the present invention, the ostomy appliance further includes a control handle 190 fixed to an end of the first tube 110 away from the receiving opening 112, the second tube 120, the first transmission member 130 and the second transmission member 150 are all connected to the control handle 190, and the control handle 190 is used for controlling the second tube 120, the first transmission member 130 and the second transmission member 150 to move along the axial direction of the first tube 110.

It should be noted that, the handle 190 has a button and other structures, and the movement of the second tube 120, the first transmission member 130 and the second transmission member 150 can be realized by controlling the button. The internal structure of the handle 190 is not essential and will not be described in detail.

The design of the handle 190 is adopted in this embodiment, so that the user can remotely control the first grasping element 140, the second grasping element 160 and the cutting element 170, and the operation is convenient for the user.

Of course, the handle 190 may also control the operation of the second stretching portion 176.

The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention, and it is therefore to be understood that the invention is not limited by the scope of the appended claims.

Claims (10)

1. An ostomy appliance is characterized by comprising a first tube body, a second tube body, a first transmission piece, a first grabbing piece, a second transmission piece, a second grabbing piece and a cutting piece, wherein one end of the first tube body is provided with an accommodating opening, the second tube body is movably arranged in the first tube body in a penetrating manner, the first transmission piece is movably arranged in the second tube body in a penetrating manner, the first grabbing piece is connected with one end, close to the accommodating opening, of the first transmission piece, the second transmission piece is movably arranged in the second tube body in a penetrating manner, the second grabbing piece is connected with one end, close to the accommodating opening, of the second transmission piece, and the cutting piece is positioned at the accommodating opening;

the first grabbing piece and the second grabbing piece are used for being folded in the second tube body after being radially deformed and penetrating the biological tissue along with the second tube body so as to respectively move to two sides of the biological tissue, and are also used for being radially expanded after leaving the second tube body and respectively clamping the biological tissue at two sides under the action of the first transmission piece and the second transmission piece, grabbing the clamped biological tissue to the accommodating opening, and the cutting piece is used for cutting the biological tissue accommodated in the accommodating opening.

2. The ostomy appliance of claim 1, wherein the first grasping member comprises a first fixed portion, a first bent portion and a first grasping portion connected in sequence, the first fixed portion is connected with the first transmission member, the first bent portion is used for bending and changing the posture of the first grasping portion, and the first grasping portion is used for abutting against the biological tissue;

the second grabbing piece comprises a second fixing part, a second bending part and a second grabbing part which are sequentially connected, the second fixing part is connected with the second transmission part, the second bending part is used for bending to change the posture of the second grabbing part, and the second grabbing part is used for abutting against the biological tissue.

3. The ostomy appliance of claim 2, wherein the number of the first grasping member and the second grasping member is two or more, the ostomy appliance further comprising a fixing ring for fixing the first fixing portion or the second fixing portion, the fixing ring being fixedly connected to one end of the first transmission member or the second transmission member near the receiving opening.

4. The ostomy appliance of claim 3, wherein the first and second grasping portions each have barbs distributed thereon for embedding within the biological tissue;

when the first grasping part and the second grasping part clamp the biological tissue at two sides, the barbs face the biological tissue.

5. The ostomy appliance of claim 4, wherein the barbs are plural in number and arranged on the sides of the first and second grasping portions.

6. An ostomy appliance according to any one of claims 2-5, characterised in that the second transmission member is hollow and the first transmission member is movably arranged through the second transmission member.

7. The ostomy appliance of claim 6, wherein projections of the first and second grasping elements on a plane perpendicular to an axial direction of the first tube overlap when the first and second grasping elements clamp the biological tissue on both sides.

8. An ostomy appliance according to any of claims 1-5, characterised in that the cutting member comprises a deformable cutting portion arranged around the receiving opening, a first stretching portion fixed in the first tube and a second stretching portion movably arranged in the first tube for tensioning the cutting portion for cutting the biological tissue.

9. The ostomy appliance of claim 8, wherein the first tube defines two tension channels extending axially therethrough, and wherein the first and second stretching portions are disposed in the two tension channels, respectively.

10. An ostomy appliance according to any one of claims 1-5, further comprising a control handle secured to an end of the first tube remote from the receiving opening, the second tube, the first transmission member and the second transmission member all being connected to the control handle for controlling the axial movement of the second tube, the first transmission member and the second transmission member along the first tube.

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