CN216257313U

CN216257313U - Ostomy appliance

Info

Publication number: CN216257313U
Application number: CN202121890571.9U
Authority: CN
Inventors: 张蕾
Original assignee: Shenzhen Baite Micro Medical Technology Co ltd
Current assignee: Shenzhen Baite Micro Medical Technology Co ltd
Priority date: 2021-08-12
Filing date: 2021-08-12
Publication date: 2022-04-12
Anticipated expiration: 2031-08-12

Abstract

The embodiment of the utility model discloses an ostomy appliance, which comprises a first pipe body, a second pipe body, a third pipe body, a grabbing piece, a puncturing piece and a cutting piece. One end of the first tube body is provided with a containing port for containing biological tissues. The second tube body is movably arranged in the first tube body in a penetrating way. The third tube body is movably arranged in the second tube body in a penetrating way. The grabbing piece is connected with one end, close to the containing opening, of the third pipe body, and the grabbing piece is used for radially contracting in the second pipe body after deformation so as to pass through biological tissues along with the second pipe body and radially expanding and moving towards the first pipe body after the grabbing piece passes through the biological tissues and leaves the second pipe body so as to grab the biological tissues into the containing opening. The puncture piece is connected with the one end of grabbing the piece and keeping away from the third body, and the puncture piece is used for acceping in the tip of second body in order to lead the second body to pass biological tissue. The cutting member is used for cutting the biological tissue at the containing opening. The opening obtained with the ostomy appliance is more stable compared to the prior art.

Description

Ostomy appliance

Technical Field

The utility model 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.

SUMMERY OF THE UTILITY MODEL

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 comprising:

the device comprises a first pipe body, a second pipe body and a third pipe body, wherein one end of the first pipe body is provided with a containing port for containing biological tissues;

the second pipe body is movably arranged in the first pipe body in a penetrating way;

the third pipe body is movably arranged in the second pipe body in a penetrating way;

the grabbing piece is connected with one end, close to the accommodating opening, of the third pipe body, and is used for radially contracting in the second pipe body after deformation so as to follow the second pipe body to penetrate through the biological tissue and radially expanding and moving towards the first pipe body to grab the biological tissue into the accommodating opening when the grabbing piece penetrates through the biological tissue and leaves the second pipe body;

the puncture piece is connected with one end, far away from the third pipe body, of the grabbing piece, and the puncture piece is used for being contained in the end part of the second pipe body so as to lead the second pipe body to penetrate through the biological tissue; and

a cutting member for cutting the biological tissue received at the receiving port.

In some embodiments of the ostomy appliance, the grasping element comprises a first connecting portion connected to the third tube, a second connecting portion connected to the piercing element, and a plurality of deformation portions connecting the first connecting portion and the second connecting portion, the first connecting portion and the second connecting portion extending in an axial direction of the third tube, the plurality of deformation portions being arranged around a central axis of the third tube.

In some embodiments of the ostomy appliance, the deformation portion is provided with barbs for gripping the biological tissue.

In some embodiments of the ostomy appliance, an end of the deformation portion near the first connecting portion is provided with an abutting surface for abutting against the biological tissue, the abutting surface is provided with the barb and a notch corresponding to the barb, and the barb is accommodated in the notch when the deformation portion contracts;

or the deformation part comprises a straight section positioned in the middle and arc sections positioned at two ends for connection, and the barbs are positioned at two sides of the straight section and extend towards the first connection part beyond the straight section;

or the barbs are arranged in a V shape, and two ends of each barb are connected with the side walls of the two adjacent deformation parts respectively.

In some embodiments of the ostomy appliance, the ostomy appliance further comprises a telescopic member movably disposed inside the third tube, the telescopic member being fixedly connected with the second connecting portion or the piercing member to control the grasping member to lock and expand; and/or

The grabbing piece is made of memory metal, and when the grabbing piece is separated from the second pipe body, the grabbing piece is restored to an expansion state.

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 first tube includes an extension portion and a stoma portion, the extension portion and the stoma portion both extend along an axial direction, a moving channel for the second tube to pass through and a plurality of channels are disposed in a middle portion of the extension portion, one end of the stoma portion away from the extension portion is provided with the receiving port, one end of the stoma portion close to the extension portion is provided with a plurality of projections adapted to the channels, and the projections are embedded and fixed in the channels.

In some embodiments of the ostomy appliance, the piercing member comprises a fixation portion fixedly connected to the grasping member and a piercing portion for piercing the biological tissue, the piercing portion being hemispherical.

In some embodiments of the ostomy appliance, the ostomy appliance further comprises a control handle fixed to an end of the first tube remote from the receiving port, the second tube and the third tube are both connected to the control handle, and the control handle is used for controlling axial movement of the second tube and the third tube.

The embodiment of the utility model has the following beneficial effects:

according to the ostomy appliance provided by the embodiment, before the stoma, the third tube body is moved so that the grabbing piece is accommodated in the second tube body, and the puncturing piece is positioned at the end part of the second tube body. Then the second tube body is driven to move, the grabbing piece and the puncturing piece move along with the second tube body, the puncturing piece at the end part is abutted against the biological tissue and punctures the biological tissue, so that the grabbing piece can penetrate through the biological tissue, and the first tube body does not penetrate through the biological tissue. Moreover, the second pipe body is driven to move relative to the third pipe body in the direction away from the puncture piece, the grabbing piece radially deforms and expands after leaving the second pipe body, and the radial area of the grabbing piece is increased. Then, the second tube and the third tube are driven to move towards the first tube integrally, the grasping piece is abutted against the biological tissue, and the biological tissue is pushed to the accommodating opening. Finally, the cutting member is operated to separate the biological tissue inside and outside the receiving opening. With the ostomy appliance provided by the above embodiment, the biological tissue is hard to rebound compared to the prior art through the cut-formed opening, 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 view of a stoma device in one state, provided by an embodiment.

Figure 2 is a schematic view of a further state of the ostomy appliance provided in figure 1.

Fig. 3 is a schematic structural view of a grasping element according to an embodiment.

Fig. 4 is a schematic structural view of a grasping element according to an embodiment.

Fig. 5 is a schematic structural view of a grasping element according to an embodiment.

Fig. 6 is a cross-sectional view of an extension of the first tubular body of fig. 1.

Fig. 7 is a schematic view of the stoma portion of the first tube shown in fig. 1.

Fig. 8 is a schematic view of the structure of the cutting member shown in fig. 1.

Fig. 9 is a schematic view of the configuration of the piercing member of fig. 1.

Reference numerals:

110-first tube, 112-extension, 1122-active channel, 1124-channel, 114-stoma, 1142-bump, 110 a-receiving port, 110 b-tension channel;

120-a second tube;

130-a third tube;

140-grasping element, 142-first connecting portion, 144-second connecting portion, 146(147, 148) -deformation portion, 1462(1472, 1482) -barb, 1464-abutment surface, 1474-straight segment, 1476-arc segment;

150-piercing element, 152-fixation, 154-piercing part;

160-cutting, 162-cutting, 164-first stretching, 166-second stretching;

170-control 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. 1-9, an embodiment of the present invention provides an ostomy appliance including a first tube 110, a second tube 120, a third tube 130, a grasping element 140, a piercing element 150 and a cutting element 160. One end of the first tube 110 is provided with a receiving opening 110a for receiving a biological tissue. The second tube 120 is movably disposed through the first tube 110. The third tube 130 is movably disposed through the second tube 120. The grasping member 140 is connected to an end of the third tube 130 near the receiving opening 110a, and the grasping member 140 is configured to be radially contracted within the second tube 120 after being deformed so as to follow the second tube 120 through the biological tissue, and to be radially expanded and moved toward the first tube 110 when the grasping member 140 leaves the second tube 120 after passing through the biological tissue so as to grasp the biological tissue into the receiving opening 110 a. The puncturing member 150 is connected to an end of the grasping member 140 away from the third tube 130, and the puncturing member 150 is adapted to be received in an end of the second tube 120 to guide the second tube 120 through the biological tissue. The cutting member 160 is used to cut the biological tissue at the receiving opening 110 a.

According to the ostomy appliance provided by the above embodiment, before the stoma, the third tube 130 is moved such that the grasping element 140 is accommodated in the second tube 120 and the piercing element 150 is located at the end of the second tube 120. Then, the second tube 120 is driven to move, the grasping element 140 and the puncturing element 150 move along with the second tube 120, and the puncturing element 150 at the end abuts against the biological tissue and punctures the biological tissue, so that the grasping element 140 passes through the biological tissue, where the first tube 110 does not pass through the biological tissue. Furthermore, the second tube 120 is driven to move relative to the third tube 130 in a direction away from the piercing member 150, and the grasping member 140 deforms and expands radially after leaving the second tube 120, so that the radial area of the grasping member increases. Then, the second tube 120 and the third tube 130 are driven to move toward the first tube 110, the grasping element 140 abuts against the biological tissue, and the biological tissue is pushed to the receiving opening 110 a. Finally, the cutting member 160 operates to separate the biological tissues inside and outside the receiving port 110 a.

With the ostomy appliance provided by the above embodiment, the biological tissue is hard to rebound compared to the prior art through the cut-formed opening, thereby ensuring the stability of the opening.

It should be noted that, in order to facilitate the puncture device 150 to puncture the biological tissue, the puncture device 150 is provided with a current loop to puncture 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, 4 or 5, in an embodiment of the present invention, the grabbing element 140 includes a first connecting portion 142 connected to the third tube 130, a second connecting portion 144 connected to the puncturing element 150, and a plurality of deformation portions 146 connecting the first connecting portion 142 and the second connecting portion 144, wherein the first connecting portion 142 and the second connecting portion 144 extend along an axial direction of the third tube 130, and the plurality of deformation portions 146 are disposed around a central axis of the third tube 130. Adopt the structure that this embodiment provided, be convenient for carry out radial expansion deformation after the biological tissue punctures.

Optionally, the deformation 146 is C-shaped.

Furthermore, the first connecting portion 142 and the second connecting portion 144 may be both hollow cylinders. The first connecting portion 142 and the third tube 130, and the second connecting portion 144 and the piercing member 150 can be overlapped by sleeving, and then gluing, welding or other fixing processes are performed.

Specifically, the puncturing member 150 includes a fixing portion 152 fixedly connected to the grasping member 140 and a puncturing portion 154 for puncturing the biological tissue, and the puncturing portion 154 has a hemispherical shape. The fixing portion 152 is fitted to the cylindrical second connecting portion 144.

In a specific embodiment, the deformation portion 146 is provided with barbs for grasping biological tissue. In this way, relative movement of the biological tissue with respect to grasping element 140, and thus passage of grasping element 140 through the opening, is avoided.

Referring to fig. 3, in a more specific embodiment, an abutting surface 1464 for abutting against a biological tissue is disposed at an end of the deformation portion 146 close to the first connecting portion 142, the abutting surface is provided with a hook 1462 and a notch corresponding to the hook 1462, and when the deformation portion 146 is contracted, the hook 1462 is received in the notch. By adopting the design, the interference of the barbs 1462 in the deformation process can be avoided, and the compactness of the structure is improved.

Referring to fig. 4, in another more specific embodiment, the shape-changing portion 147 includes a straight portion 1474 at the middle and an arc portion 1476 at both ends for connection, and the barbs 1472 are located at both sides of the straight portion and extend beyond the straight portion toward the first connection portion 142. It will be appreciated that when the shape-changing portion 147 is in the expanded state, the length of the straight portion is shorter and the barbs 1472 protrude from the straight portion, and when the shape-changing portion 147 is in the contracted state, the length of the straight portion is increased and the barbs 1472 are retracted in the straight portion.

Referring to fig. 5, in another more specific embodiment, the barb 1482 is disposed in a V-shape, and two ends of the barb 1482 are respectively connected to the sidewalls of two adjacent deformation portions 148. The state of barbs 1482 in this embodiment can be seen with reference to the embodiment provided in fig. 4, which is not specifically set forth herein.

In a more specific and specific embodiment, the ostomy appliance further comprises a telescopic member movably disposed within the third tube 130, the telescopic member being fixedly connected to the second connecting portion 144 or the piercing member 150 for controlling the locking and expansion of the grasping member 140. As the telescoping member is moved toward the piercing member 150, the gripping members 140 are stretched and thereby converted to a contracted state and vice versa to an expanded state. The gripping member 140 is controlled by the telescopic member, so that the gripping member 140 can work stably.

In other more specific and particular embodiments, the gripping member 140 is a memory metal, and the gripping member 140 returns to the expanded state when the gripping member 140 is disengaged from the second tube 120. It can be understood that when the grabbing member 140 is formed, the expansion state of the grabbing member 140 is set to be a normal state, and when the constraint of the second tube 120 is lost, the grabbing member 140 automatically returns to the normal state. Thus, the structure is relatively simplified, and the compactness of the structure is improved.

In addition, the two expanding and contracting manners of the grasping element 140 can exist at the same time, so as to further ensure the stability of the grasping element 140.

Referring to fig. 8, in another embodiment of the present invention, the cutting element 160 includes a deformable cutting portion 162 surrounding the receiving opening 110a, a first stretching portion 164 fixed in the first tube 110, and a second stretching portion 166 movably disposed in the first tube 110, wherein the second stretching portion 166 is used for tensioning the cutting portion 162 to cut the biological tissue. When the second stretching portion 166 is stretched, the cutting portion 162 receives a force from the second stretching portion 166, so that the loop-shaped cutting portion 162 is transformed into a straight line from the first stretching portion 164 to the second stretching portion 166, and the biological tissue gathered in the cutting portion 162 is cut by the continuously contracted cutting portion 162.

Of course, in order to facilitate the operation of the cutting member 160, the cutting member 160 also has a current loop, which is not specifically described herein.

Alternatively, the cutting portion 162 may be a flexible material, and the cutting portion 162 may be disposed on the outer circumference of the receiving opening 110a in any posture before cutting. The cutting portion 162 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 portion 162 is a combination of two opposing C-rings.

In one embodiment, the first tube 110 defines two stretching passages 110b axially penetrating the first tube 110, and the first stretching portion 164 and the second stretching portion 166 are respectively disposed in the two stretching passages 110 b.

Preferably, the connection of the first stretch 164 to the second stretch 166 coincides with the diameter of the first tube 110.

Referring to fig. 6 and 7, in a more specific embodiment, the first tube 110 includes an extending portion 112 and a mouth-making portion 114 both extending along an axial direction, a movable channel 1122 for the second tube 120 to pass through and a plurality of cavities 1124 are disposed in a middle portion of the extending portion 112, one end of the mouth-making portion 114 away from the extending portion 112 has a receiving opening 110a, one end of the mouth-making portion 114 close to the extending portion 112 is disposed with a plurality of protrusions 1142 adapted to the cavities 1124, and the plurality of protrusions 1142 are embedded and fixed in the cavities 1124. In terms of manufacturing, the combination of the extension portion 112 and the mouth portion 114 can obtain the first tube 110 with different lengths, and at the same time, the processing is convenient, and the manufacturing cost is reduced.

Of course, in other more specific embodiments, the first tube 110 can be directly machined through the extension 112.

Referring to fig. 1 and 2 again, the ostomy appliance further includes a control handle 170 fixed to an end of the first tube 110 away from the receiving opening 110a, the second tube 120 and the third tube 130 are both connected to the control handle 170, and the control handle 170 is used for controlling the axial movement of the second tube 120 and the third tube 130. Of course, the telescopic member and the second stretching portion 166 mentioned in the above embodiments are also connected to the control handle 170. By adopting the structure, remote operation is realized, and the phenomenon that other factors interfere with the stoma operation is avoided.

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 utility model is not limited by the scope of the appended claims.

Claims

1. An ostomy appliance, comprising:

2. An ostomy appliance according to claim 1, characterised in that the gripping member comprises a first connecting portion connected to the third tube, a second connecting portion connected to the piercing member and a plurality of deformations connecting the first and second connecting portions, the first and second connecting portions extending in the axial direction of the third tube, the plurality of deformations being arranged around the central axis of the third tube.

3. An ostomy appliance according to claim 2, characterised in that the deformation is provided with barbs for gripping the biological tissue.

4. The ostomy appliance of claim 3, wherein an abutting surface for abutting against the biological tissue is provided at one end of the deformation portion adjacent to the first connection portion, the abutting surface is provided with the barb and a notch corresponding to the barb, and the barb is received in the notch when the deformation portion is contracted;

5. The ostomy appliance of claim 4, further comprising a telescoping member movably disposed within the third tube, the telescoping member being fixedly connected to the second connecting portion or the piercing member to control the grasping member to lock and expand; and/or

6. 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.

7. The ostomy appliance of claim 6, wherein the first tube defines two stretching channels extending axially therethrough, and the first and second stretching portions are disposed in the two stretching channels, respectively.

8. The ostomy appliance of claim 7, wherein the first tube comprises an extension part and a stoma part, the extension part and the stoma part both extend along the axial direction, the middle part of the extension part is provided with a movable channel for the second tube to pass through and a plurality of channels, one end of the stoma part far away from the extension part is provided with the receiving port, one end of the stoma part near the extension part is provided with a plurality of lugs matched with the channels, and the lugs are embedded and fixed in the channels.

9. An ostomy appliance according to any of claims 1-5, characterised in that the piercing member comprises a fixation portion fixedly connected to the grabber and a piercing portion for piercing the biological tissue, the piercing portion being hemispherical.

10. An ostomy appliance as claimed in 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 and third tubes being connected to the control handle, the control handle being adapted to control axial movement of the second and third tubes.