CN214907538U - Intra-cavity blocking device - Google Patents
Intra-cavity blocking device Download PDFInfo
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- CN214907538U CN214907538U CN202023333739.4U CN202023333739U CN214907538U CN 214907538 U CN214907538 U CN 214907538U CN 202023333739 U CN202023333739 U CN 202023333739U CN 214907538 U CN214907538 U CN 214907538U
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Abstract
The utility model provides an intracavity plugging device, include: the plugging body is of a hollow reticular structure and can be radially contracted or expanded; the tail end of the plugging body is provided with a bolt head in a protruding way; retrieve the structure, it includes the cable and locates the first head of retrieving of cable head end, retrieves first and tie bolt head and can dismantle the connection to axial displacement and pulling shutoff body axial displacement to the tail end through the cable. Above-mentioned recovery structure realizes the recovery of shutoff body to replace the mode that adopts open operation directly to puncture on human epidermis to retrieve, convenient and fast, safe and reliable is less to patient's damage.
Description
Technical Field
The utility model relates to the technical field of medical equipment, in particular to intracavity plugging device.
Background
The plugging device is used as an implant for vascular interventional therapy to plug vascular lacerations so as to achieve the aim of stopping bleeding.
When the plugging device is in normal use, the plugging device is firstly folded and placed in the conveying sheath, and at the moment, the plugging device is in threaded connection with the conveying steel cable in the sheath. The conveying sheath is led into a blood vessel of a human body, the plugging device is driven to be conveyed to a predicted release position in the human body by external pushing, the head of the rotary conveying steel cable is disconnected with the thread, and the release of the plugging device is completed.
When the intracavity blocking device needs to be recovered due to the problems of position, size, shape and the like, an open operation is adopted at present, and an interventional therapy instrument is used for recovery by a percutaneous puncture mode, so that the recovery mode has high operation difficulty, great harm to a patient and high danger.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an intracavity plugging device to plugging device adopts open operation to retrieve and causes the damage scheduling problem to the human body among the solution prior art.
In order to solve the technical problem, the utility model adopts the following technical scheme:
an intraluminal occlusion device, comprising: the plugging body is of a hollow reticular structure and can be radially contracted or expanded; a bolt head is arranged at the tail end of the plugging body in a protruding mode; the recovery structure comprises a cable and a recovery head arranged at the head end of the cable, the recovery head is detachably connected with the plug head and pulls the plugging body to axially move through the axial movement of the cable to the tail end.
According to an embodiment of the invention, the recovery head is screwed to the bolt head.
According to an embodiment of the present invention, the bolt head is provided with a connecting hole having an internal thread; the recovery structure further comprises an auxiliary recovery part arranged on the bolt head around the connecting hole; the auxiliary recovery part is annular and is coaxial with the connecting hole; the recovery head comprises a body and a bulge protruding out of the body, the bulge is provided with an external thread, and the bulge is matched with the size of the connecting hole; the body is embedded into the auxiliary recovery part, and the protrusion is correspondingly screwed into the connecting hole.
According to an embodiment of the invention, the bolt head is made of ferromagnetic metal and the protrusion is made of magnetic material.
According to an embodiment of the present invention, the auxiliary recovery portion is integrally formed on the plug.
According to the utility model discloses an embodiment, supplementary recovery unit is a hollow tubular structure, supplementary recovery unit fixed cover is located the periphery of tieing the head.
According to an embodiment of the invention, the recovery head and the bolt head snap-fit connect.
According to an embodiment of the present invention, the end of the bolt head is provided with a protruding locking protrusion along the circumferential direction; the end part of the recovery head is provided with a clamping hook, and the clamping hook is connected with the clamping protrusion in a clamping manner.
According to an embodiment of the present invention, the hook includes a plurality of jaws that open and close relatively in a radial direction, and the jaws enclose to form a bayonet; the clamping hook is sleeved on the clamping protrusion through the clamping opening; the recovery structure further comprises an outer cylinder with a hollow inner part, the outer cylinder extends along the axial direction and is sleeved on the periphery of the cable and the clamping jaw; the outer cylinder is axially movable relative to the jaw to adjust the inner diameter of the bayonet.
According to an embodiment of the present invention, the claw includes a vertical section extending along the axial direction and a bent section bent and extending from a head end of the vertical section, the vertical section is disposed in the outer cylinder and connected with the cable, and the bent section extends out of the outer cylinder; the inner diameter of the bayonet is gradually increased in the direction away from the vertical section along the axial direction.
According to an embodiment of the present invention, the clamping process has a plurality of circumferential distribution of the clamping process.
According to an embodiment of the present invention, the locking protrusion is a hook-shaped structure, and an opening for the locking hook to engage with is provided on the locking protrusion.
According to an embodiment of the present invention, the locking protrusion is an annular structure, and the locking protrusion protrudes in a radial direction.
According to an embodiment of the present invention, the hook is an annular structure or a hook-shaped structure.
According to an embodiment of the present invention, the end of the bolt head is radially provided with a through hole; the end part of the recovery head is provided with a clamping hook, and the clamping hook can pass through the through hole to be clamped on the bolt head.
According to an embodiment of the present invention, the end of the bolt head is provided with a hollow cylinder; the through holes penetrate through the opposite side walls of the cylinder body.
According to the above technical scheme, the utility model provides a pair of intracavity plugging device has following advantage and positive effect at least:
the recovery of structure realization shutoff body is retrieved through setting up to replace the mode that adopts open operation directly to puncture on human epidermis to retrieve, convenient and fast, safe and reliable is less to patient's damage. And, retrieve the head and tie the head for can dismantle the connection among the recovery structure, can part and reconnect according to the in service behavior, convenient and reliable has improved the operability.
Drawings
Fig. 1 is a schematic structural view of an auxiliary recovery portion provided in a middle chamber plugging device according to an embodiment of the present invention.
Fig. 2 is another schematic structural diagram of the auxiliary recovery part in the first embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a recovery head in the second embodiment of the present invention.
Fig. 4 is a top view of the snap in fig. 3.
Fig. 5 is a schematic isometric view of the burl of fig. 3.
Fig. 6 is a schematic view of the connection between the recovery head and the bolt head according to the third embodiment of the present invention.
Fig. 7 is a schematic view illustrating the connection between the recovery head and the plug according to the fourth embodiment of the present invention.
Fig. 8 is a schematic structural view of a fifth middle hook according to an embodiment of the present invention.
The reference numerals are explained below:
1-plugging the body; 11-bolt head; 12a, 12b, 12 c-cartilages; 121-jaws; 1211-vertical section; 1213-bending section; 13-a barrel body; 101-a connection hole; 103-a through hole; 105-bayonet;
2-a recovery structure; 21-a cable; 22-recovery head; 221-recovery head body; 223-convex; 23a, 23b, 23c, 23 d-hook; 231-barbs; 232-axial portion; 233-a radial portion; 201-voids;
3-an auxiliary recovery part;
5-outer cylinder.
Detailed Description
Exemplary embodiments that embody features and advantages of the present invention will be described in detail in the following description. It is to be understood that the invention is capable of other and different embodiments and its several details are capable of modification without departing from the scope of the invention, and that the description and drawings are to be regarded as illustrative in nature and not as restrictive.
This embodiment provides a recoverable intracavity plugging device, retrieves the structure through setting up to replace and adopt open operation to directly puncture the mode of retrieving on human epidermis, convenient and fast, safe and reliable is less to patient's injury.
The different structures and methods of use of the endoluminal closure device described above are described in detail below with reference to several embodiments.
Detailed embodiment of the intraluminal occluding device
Referring to fig. 1, fig. 1 shows a specific structure of an intraluminal occlusion device provided in this embodiment, which includes an occlusion body 1 and a recovery structure 2. The plugging body 1 is a net structure with a hollow inner part and can be radially contracted or expanded. The tail end of the plugging body 1 is provided with a bolt head 11 in a protruding way. The recovery structure 2 comprises a cable 21 and a recovery head 22 arranged at the head end of the cable 21, the recovery head 22 is detachably connected with the plug head 11, and the axial movement of the cable 21 to the tail end is used for pulling the plugging body 1 to axially move, so that the recovery of the plugging body 1 is realized.
The plugging body 1 is a hollow reticular structure with or without a polymer flow resistance membrane on the surface and made of a memory metal woven mesh tube, and can be radially contracted or expanded. The axial two ends of the plugging body 1 are respectively provided with a closing end socket for plugging the net pipe. In use, the end of the occluding body 1 distal to the operator is considered a proximal end, while the end proximal to the operator is considered a trailing end. The closing end for closing the tail end of the body 1 is the plug head 11 provided in this embodiment, and the middle of the plug head 11 is provided with a connecting hole 101 with internal threads.
The cable 21 is made of a stainless steel material and has a certain rigidity, and can be linearly moved in the axial direction inside a conveying sheath (not shown).
In the embodiment, the recovery head 22 and the bolt head 11 are connected by screw threads, which is convenient and reliable.
When the plugging device is used normally, the plugging body 1 is folded in the conveying sheath, and at the moment, the plugging body 1 is in threaded connection with a conveying steel cable (not shown) through a bolt head 11. When the conveying sheath pipe extends into a human body and reaches a preset release position in the human body, the conveying steel cable moves along the axial direction of the conveying sheath pipe to push the plugging body 1 out of the sheath pipe, and the bolt head 11 is separated by rotating the conveying steel cable to complete the release of the plugging body 1. The threaded connection is reliable and release is controlled, but if the release is found to be out of position or otherwise problematic after the threaded connection is released, the delivery cable is difficult to re-thread with the plug head 11. When the cable head is screwed with the plug head 11, the cable head is ejected from the connecting hole 101 when the cable head has an angle, and the recovery difficulty is large.
In order to solve the above problem, in the present embodiment, the plug head 11 is additionally provided with the auxiliary recovery portion 3 for assisting recovery of the plug body 1. Due to the arrangement of the auxiliary recovery part 3, the recovery head 22 can obtain axial limitation, so that the recovery head cannot bounce off when being connected, and can be conveniently centered, and the success rate of recovery operation is improved.
Specifically, the auxiliary recovery portion 3 protrudes in the axial direction, and is provided in a ring shape around the connection hole 101. The auxiliary recovery unit 3 is coaxial with the connection hole 101, and the inner diameter of the auxiliary recovery unit 3 is larger than the inner diameter of the connection hole 101.
The recovery head 22 includes a recovery head body 221 and a projection 223 projecting axially from one end of the body. The circumferential dimension of the body 221 is matched with the inner diameter dimension of the auxiliary recovery part 3, the outer diameter dimension of the protrusion 223 is matched with the inner diameter dimension of the connecting hole 101, and the outer circumferential wall of the protrusion 223 is further provided with an external thread matched with the connecting hole 101.
As shown in fig. 1, the auxiliary recovery part 3 is integrally formed on the end of the plug 11, and the outer wall of the auxiliary recovery part 3 is flush with the outer wall of the body of the plug 11. The whole structure has high strength and is not easy to damage.
As shown in fig. 2, the auxiliary recovery part 3 is detachably connected to the plug head 11. The auxiliary recovery part 3 has a hollow cylindrical structure made of a polymer material, and is high in hardness and light in weight. The auxiliary recovery part 3 is fixed on the periphery of the plug head 11 in a sleeving manner in a sewing manner or a hot melting manner, and one end opening of the auxiliary recovery part 3, which is far away from the plugging body 1, is used for the recovery head 22 to enter.
In the process of threaded connection, the whole recovery head 22 is aligned and extends into the auxiliary recovery part 3; as the cable 21 is continuously pushed forward in the axial direction, the recovery head body 221 is retained by the auxiliary recovery part 3 and moves in the axial direction of the auxiliary recovery part 3. Since the auxiliary recovery part 3 is coaxial with the connection hole 101, the projection 223 at the head end of the recovery head body 221 is easily aligned with the connection hole 101; after the projection 223 is inserted into the connection hole 101, the cable 21 is rotated to rotate the recovery head 22 integrally, and the projection 223 is screwed into the connection hole 101 in the thread direction until being completely screwed and fixed with the connection hole 101. At this time, the recovery head 22 and the plug head 11 are connected and fixed. Under the action of external force, the cable 21 is pulled back towards the direction close to an operator, so as to drive the recovery head 22 and the plugging body 1 to retract into the conveying sheath; then the conveying sheath is withdrawn from the human body, and finally the recovery of the blocking body 1 is finished.
Preferably, the projection 223 is made of a magnetic material. In this way, in the case that the bolt head 11 is made of ferromagnetic metal, after the recovery structure 2 enters the human body along with the conveying sheath, the protrusion 223 is guided to the bolt head 11 under the action of the magnetic field, so that the protrusion 223 and the connection hole 101 of the bolt head 11 are easily aligned, and the accuracy and efficiency of the threaded connection are improved.
Second embodiment of the intraluminal occluding device
Referring to fig. 3 to 5, the present embodiment is different from the first embodiment in that the connection between the recovery head 22 and the plug head 11 is a snap connection.
The snap connection is represented as: the end of the bolt head 11 is provided with a protruding clamping projection 12a in the circumferential direction. The end of the recovery head 22 is provided with a hook 23a, and the hook 23a is connected with the clamping protrusion 12a in a clamping way, namely the recovery head 22 and the bolt head 11 can be connected in a clamping way. The clamping connection mode can replace threaded connection, the assembly and disassembly are more convenient, the structures of all the parts are simple, and the cost is lower.
The locking projection 12a is an annular flange projecting radially from the end periphery of the plug head 11.
The hook 23a comprises a plurality of jaws 121 which are oppositely opened and closed along the radial direction, and the jaws 121 surround to form the bayonet 105.
Referring to fig. 4, the cross section of the hook 23a is circular. A gap 201 between any two jaws 121 extends in the axial direction, and the gap 201 is communicated with the bayonet 105. The inner diameter of the bayonet 105 is made adjustable in size by elastic deformation or plastic deformation of the jaws 121. The hook 23a is hooked on the catch 12a by the bayonet 105, and fixed on the catch 12a by narrowing the bayonet 105.
The recovery structure 2 further comprises an outer cylinder 5 which is hollow inside. The outer cylinder 5 extends along the axial direction, and the outer cylinder 5 is sleeved on the periphery of the cable 21 and the part of the clamping jaw 121; the outer cylinder 5 is axially movable relative to the jaws 121, and during the axial reciprocating movement, the outer cylinder 5 presses or releases the jaws 121 to adjust the inner diameter of the bayonet 105.
Referring to fig. 5, the claw 121 includes a vertical section 1211 and a bent section 1213 formed integrally.
The vertical section 1211 extends in an axial direction, and a rear end of the vertical section 1211 is connected to a body of the recovery head 22. The vertical section 1211 is built in the outer tub 5 and connected to the cable 21. The bent section 1213 is bent and extended from the front end of the vertical section 1211 and extends out of the outer cylinder 5.
In use, the cable 21 is pushed by an external force, so that the cable 21 moves axially forward along the outer cylinder 5, and the jaws 121 then extend out of the outer cylinder 5. The claw 121 is sleeved on the clamping protrusion 12a of the bolt head 11 through the clamping opening 105 in a relaxed state. At this time, the jaw 121 has a certain gap from the catching protrusion 12 a. When the jack catch 121 and the clamping protrusion 12a are confirmed to form initial clamping, the cable 21 is pulled back, the jack catch 121 moves backwards along with the cable 21, at this time, the bending section 1213 of the jack catch 121 abuts against the inner wall of the outer cylinder 5, and under the continuous pulling of the cable 21, the bending section 1213 is more squeezed by the outer cylinder 5 to deform, so that the inner diameter of the bayonet 105 is continuously reduced until the jack catch 121 and the clamping protrusion 12a are in tight contact, and a stable clamping relation is formed. After confirming that the clamping is stable, the plugging body 1 is recovered to the conveying sheath tube through the integral withdrawing outer cylinder 5 and the cable 21 to complete recovery.
In this embodiment, the hook 23a with an annular cross section and the plug 11 have good centering performance when being connected, so that the plugging body 1 can be recycled in a smaller-sized conveying sheath, and the damage to the human body caused by recycling is reduced.
Third embodiment of the intraluminal occlusion device
Referring to fig. 6, the present embodiment is different from the first embodiment in that the connection manner between the recovery head 22 and the plug head 11 of the recovery structure 2 is a snap connection.
The concrete expression is as follows: the end of the bolt head 11 is provided with a plurality of protruding clamping protrusions 12b in the circumferential direction. The snap 12b is plural and arranged at intervals in the circumferential direction. The recovery head 22 has a hook 23b at its end. Any one or more clamping protrusions 12b can be clamped with the clamping hooks 23b, so that the connection stability is improved. The clamping connection mode can replace threaded connection, the assembly and disassembly are more convenient, the structures of all the parts are simple, and the cost is lower.
The catch 12b is of hook-like configuration.
The locking projection 12b protrudes from the outer peripheral wall of the body of the plug 11 and is bent to extend. An opening is formed between the snap 12b and the outer wall of the body of the plug head 11, the opening facing the plugging body 1. The opening is used for the hook 23b to enter and be clamped on the clamping projection 12 b.
Preferably, the burls 12b have two. The two locking protrusions 12b are symmetrically arranged and respectively extend from two opposite sides of the end edge of the body of the bolt head 11 in a bending manner towards the same direction.
The angle between the catch 12b and the outer wall of the head 11 is acute. So, the space between card process 12b and the outer wall is comparatively narrow, so can avoid trip 23b to break away from the opening part effectively, guarantees the stability of block connection, does benefit to the recovery.
In this embodiment, the locking protrusion 12b and the plug 11 are integrally formed, and are made of stainless steel, so that the strength is good, and the recycling process is ensured to be smoothly performed.
The hook 23b is a ring-shaped closed structure.
Preferably, the hook 23b is made of a circular multi-strand stainless steel wire, has certain rigidity, is not easy to deform, and facilitates the recycling operation. Meanwhile, the hook 23b has a certain deformation capability, so that the shape of the hook 23b can be adjusted in time according to the use condition, such as the shape of a shuttle or a triangle with a sharp corner from a conventional round shape or an elliptical shape, so that the hook 23b can hook the clamping protrusion 12b more easily.
In the using process, the complex operation does not need to be added in the recovery operation, the recovery head 22 is only needed to be conveyed to the position near the bolt head 11 through the conveying sheath, the clamping hook 23b is close to the clamping protrusion 12b on either side of the bolt head 11 along with the forward movement of the cable 21, and the clamping hook 23 is moved to the front of the opening of the clamping protrusion 12 b; then slightly pulling back the cable 21 to make the hook 23b extend into the opening so as to be clamped in the clamping projection 12 b; after confirming that the clamping is stable, the cable 21 is pulled back again to axially move the recovery head 22 and the plugging body 1 together so as to recover the plugging body into the conveying sheath tube to complete recovery.
In the present embodiment, the hook 23b has a ring structure. In other embodiments, the hook 23b is not limited to a single ring structure, and may be a plurality of ring structures separated from the head end of the recovery head 22, and a certain included angle is formed between adjacent ring structures, so that the hook can be engaged with the locking protrusions 12b at different angles more easily, and the operation difficulty is reduced. Moreover, the hook 23b may also be a hook-shaped structure, and the hook 23b has an external dimension that enables itself to extend into the opening of the locking protrusion 12b and hook the locking protrusion 12b, thereby realizing locking.
Fourth embodiment of the endoluminal occlusion device
Referring to fig. 7, the present embodiment is different from the first embodiment in that the connection manner between the recovery head 22 and the plug head 11 is a snap connection.
The concrete expression is as follows: the end of the bolt head 11 is provided with a plurality of protruding clamping protrusions 12c in the circumferential direction. The seizing portions 12c are plural and arranged at circumferential intervals. The recovery head 22 has a hook 23c at its end. Any one or more clamping protrusions 12c can be clamped with the clamping hooks 23c, so that the connection stability is improved. The clamping connection mode can replace threaded connection, the assembly and disassembly are more convenient, the structures of all the parts are simple, and the cost is lower.
The clamping protrusion 12c is of a circular ring-shaped closed structure.
The clamping projection 12c is fixedly connected with the outer wall of the body of the bolt head 11 and projects along the radial direction of the bolt head 11.
Preferably, the burls 12c have two. The two locking projections 12c are symmetrically arranged and radially project from opposite sides of the body of the bolt head 11 in opposite directions.
The catch 12c is perpendicular to the outer wall of the body of the plug head 11. The central axis of the locking projection 12c itself is perpendicular to the central axis of the plug head 11, based on the direction of the view of fig. 7.
The hook 23c has a hook-shaped structure.
The hook 23c includes an axial section axially protruding from the body of the recovery head 22 and a radial section bent and protruding radially from the front end of the axial section. A barb 231 is provided at the end of the radial segment. The barb 231 extends axially toward the head end of the recovery head 22, opposite the axial segment. The hook 23c passes through the inside of the catch 12c by the barb 231 and hooks the catch 12c, thereby forming a snap connection.
In the using process, the complex operation does not need to be added in the recovery operation, the recovery head 22 is only needed to be conveyed to the position near the bolt head 11 through the conveying sheath, the clamping hook 23c is close to the clamping protrusion 12c on either side of the bolt head 11 along with the forward movement of the cable 21 until the barb 231 extends into the clamping protrusion 12c, and the barb 231 is contacted with the periphery of the clamping protrusion 12c through adjusting the angle; then, the cable 21 is slightly pulled back to hook the barb 231 on the clamping projection 12c, and after the complete hooking is confirmed not to be separated from the clamping projection 12c, the cable 21 is pulled back again to axially move the recovery head 22 and the plugging body 1 together to recover into the conveying sheath tube to complete the recovery.
In the present embodiment, the locking protrusion 12c has an annular closed structure. In other embodiments, the sticking 12c is not limited to a ring-shaped closed structure, and the shape of the sticking 12c may also be an arc shape having a notch, a polygonal closed ring shape, an irregular ring shape, or the like. The hook 23c can be designed for different structures of the snap 12c to flexibly select a ring structure or a hook structure.
Fifth embodiment of the intraluminal occluding device
Referring to fig. 8, the present embodiment is different from the first embodiment in that the connection between the recovery head 22 and the plug head 11 is a snap connection.
The end of the bolt head 11 is provided with a through hole 103 along the radial direction. The hook 23d can pass through the through hole 103 to be clamped at the bolt head 11.
Specifically, the end of the bolt head 11 is provided with a hollow cylinder 13, the cylinder 13 is integrally formed with the body of the bolt head 11, and the cylinder 13 is coaxial with and communicated with the connecting hole 101. The through-holes 103 radially penetrate opposite sidewalls of the cylinder 13.
The end of the recovery head 22 is provided with a hook 23 d. The hook 23d includes an axial portion 232 axially protruding from the body of the recovery head 22 and a radial portion 233 bent and protruding in the radial direction from the front end of the axial portion 232.
Preferably, the included angle between the axial portion 232 and the radial portion 233 is acute, as the radial portion 233 is slightly inclined toward the head end of the recovery head 22. Thus, the radial portion 233 radially penetrates through the through hole 103, and a certain included angle is formed between the radial portion 233 and the through hole 103, so that the radial portion 233 can be effectively prevented from being separated from the through hole 103, and smooth recycling is guaranteed.
In the using process, complex operation does not need to be added in the recovery operation, the recovery head 22 is only required to be conveyed to the position near the bolt head 11 through the conveying sheath, along with the forward movement of the cable 21, the hook 23d is close to the side of the through hole 103 on the left side or the right side of the bolt head 11, the cable 21 is adjusted to swing, the radial part 233 of the hook 23d can stretch into the through hole 103 along the outer side, when the radial part 233 stretches into a certain length, the hook 23d is ensured not to be separated from the through hole 103, and the recovery head 22 and the plugging body 1 are axially moved together by the pull-back cable 21 to be recovered into the conveying sheath to complete recovery.
In the present embodiment, the hook 23d is engaged with the locking projection 12d, that is, the recovery head 22 and the plug 11 can be engaged with each other. The clamping connection mode can replace threaded connection, the assembly and disassembly are more convenient, the structures of all the parts are simple, and the cost is lower.
It should be noted that the above embodiments provide a recovery structure 2 that can also be used with a conventional catch. By providing the locking projections 12a, 12b, 12c, etc. on the plug head 11 of the plugging body 1, the capture device can be used to bypass the locking projections and complete the collection. In addition, because the plugging body 1 is made of a plurality of metal mesh pipes, when the capturing device is used for recovery, the capturing device can directly penetrate through one or more metal wires on the outer surface of the plugging body 1 to be connected with the plugging body 1, so that the recovery is completed.
While the present invention has been described with reference to several exemplary embodiments, it is understood that the terminology used is intended to be in the nature of words of description and illustration, rather than of limitation. As the present invention may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described embodiments are not limited by any of the details of the foregoing description, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the meets and bounds of the claims, or equivalences of such meets and bounds are therefore intended to be embraced by the appended claims.
Claims (16)
1. An endoluminal occlusion device, comprising:
the plugging body is of a hollow reticular structure and can be radially contracted or expanded; a bolt head is arranged at the tail end of the plugging body in a protruding mode;
the recovery structure comprises a cable and a recovery head arranged at the head end of the cable, the recovery head is detachably connected with the plug head and pulls the plugging body to axially move through the axial movement of the cable to the tail end.
2. The endoluminal occlusion device of claim 1, wherein:
the recovery head is in threaded connection with the bolt head.
3. The endoluminal occlusion device of claim 2, wherein:
the bolt head is provided with a connecting hole with internal threads;
the recovery structure further comprises an auxiliary recovery part arranged on the bolt head around the connecting hole; the auxiliary recovery part is annular and is coaxial with the connecting hole;
the recovery head comprises a body and a bulge protruding out of the body, the bulge is provided with an external thread, and the bulge is matched with the size of the connecting hole; the body is embedded into the auxiliary recovery part, and the protrusion is correspondingly screwed into the connecting hole.
4. The endoluminal occlusion device of claim 3, wherein:
the bolt head is made of ferromagnetic metal, and the protrusion is made of magnetic material.
5. The endoluminal occlusion device of claim 3, wherein:
the auxiliary recovery part is integrally formed on the bolt head.
6. The endoluminal occlusion device of claim 3, wherein:
the auxiliary recovery part is of a hollow tubular structure and is fixedly sleeved on the periphery of the bolt head.
7. The endoluminal occlusion device of claim 1, wherein:
the recovery head is connected with the bolt head in a clamping manner.
8. The endoluminal occlusion device of claim 7, wherein:
the end part of the bolt head is provided with a protruding clamping protrusion along the circumferential direction;
the end part of the recovery head is provided with a clamping hook, and the clamping hook is connected with the clamping protrusion in a clamping manner.
9. The endoluminal occlusion device of claim 8, wherein:
the clamping hook comprises a plurality of clamping jaws which are oppositely opened and closed along the radial direction, and the clamping jaws are enclosed to form a bayonet; the clamping hook is sleeved on the clamping protrusion through the clamping opening;
the recovery structure further comprises an outer cylinder with a hollow inner part, the outer cylinder extends along the axial direction and is sleeved on the periphery of the cable and the clamping jaw; the outer cylinder is axially movable relative to the jaw to adjust the inner diameter of the bayonet.
10. The endoluminal occlusion device of claim 9, wherein:
the jack catch comprises a vertical section extending along the axial direction and a bent section bent and extending from the head end of the vertical section, the vertical section is arranged in the outer cylinder and connected with the cable, and the bent section extends out of the outer cylinder;
the inner diameter of the bayonet is gradually increased in the direction away from the vertical section along the axial direction.
11. The endoluminal occlusion device of claim 8, wherein:
the clamping process is provided with a plurality of clamping processes which are distributed circumferentially.
12. The endoluminal occlusion device of claim 11, wherein:
the clamping protrusion is of a hook-shaped structure, and an opening for clamping and connecting the clamping hook is formed in the clamping protrusion.
13. The endoluminal occlusion device of claim 11, wherein:
the clamping protrusions are annular structures and protrude out along the radial direction.
14. The endoluminal occlusion device of claim 12 or 13, wherein:
the clamping hook is of an annular structure or a hook-shaped structure.
15. The endoluminal occlusion device of claim 7, wherein:
the end part of the bolt head is radially provided with a through hole;
the end part of the recovery head is provided with a clamping hook, and the clamping hook can pass through the through hole to be clamped on the bolt head.
16. The endoluminal occlusion device of claim 15, wherein:
the end part of the bolt head is provided with a hollow cylinder;
the through holes penetrate through the opposite side walls of the cylinder body.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023333739.4U CN214907538U (en) | 2020-12-30 | 2020-12-30 | Intra-cavity blocking device |
| PCT/CN2021/143068 WO2022143895A1 (en) | 2020-12-30 | 2021-12-30 | Intracavitary plugging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023333739.4U CN214907538U (en) | 2020-12-30 | 2020-12-30 | Intra-cavity blocking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214907538U true CN214907538U (en) | 2021-11-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023333739.4U Active CN214907538U (en) | 2020-12-30 | 2020-12-30 | Intra-cavity blocking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214907538U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022143895A1 (en) * | 2020-12-30 | 2022-07-07 | 杭州唯强医疗科技有限公司 | Intracavitary plugging device |
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2020
- 2020-12-30 CN CN202023333739.4U patent/CN214907538U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022143895A1 (en) * | 2020-12-30 | 2022-07-07 | 杭州唯强医疗科技有限公司 | Intracavitary plugging device |
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