CN114848073A - In vivo implant delivery device and delivery system - Google Patents
In vivo implant delivery device and delivery system Download PDFInfo
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- CN114848073A CN114848073A CN202210581056.5A CN202210581056A CN114848073A CN 114848073 A CN114848073 A CN 114848073A CN 202210581056 A CN202210581056 A CN 202210581056A CN 114848073 A CN114848073 A CN 114848073A
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- 239000007943 implant Substances 0.000 title claims abstract description 51
- 238000001727 in vivo Methods 0.000 title claims description 12
- 239000004033 plastic Substances 0.000 claims description 4
- 229920003023 plastic Polymers 0.000 claims description 4
- 206010002329 Aneurysm Diseases 0.000 description 6
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000003073 embolic effect Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 201000008450 Intracranial aneurysm Diseases 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 208000007536 Thrombosis Diseases 0.000 description 1
- 210000001367 artery Anatomy 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000010102 embolization Effects 0.000 description 1
- 230000035876 healing Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
- A61B17/12099—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder
- A61B17/12109—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder in a blood vessel
- A61B17/12113—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder in a blood vessel within an aneurysm
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
- A61B17/12131—Occluding by internal devices, e.g. balloons or releasable wires characterised by the type of occluding device
- A61B17/1214—Coils or wires
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
- A61B2017/1205—Introduction devices
- A61B2017/12054—Details concerning the detachment of the occluding device from the introduction device
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- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- Medical Informatics (AREA)
- Vascular Medicine (AREA)
- Reproductive Health (AREA)
- Engineering & Computer Science (AREA)
- Veterinary Medicine (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Neurosurgery (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Abstract
The invention discloses an intracorporeal implant delivery device, the end of the implant is provided with a connecting member (1), the intracorporeal implant delivery device comprises: the pipe body (4), wherein the front end of the pipe body (4) is provided with a collision structure, one end of the collision structure, facing the connecting member (1), is provided with an inlet through which the connecting member (1) passes, when the connecting member (1) is inserted from the inlet and pushed to reach a specified position, the inlet is reduced, and the collision structure forms collision on the connecting member (1) so as to fix the connecting member (1); a rope (2), one end of said rope (2) being connected to an opening means, said opening means being able to reopen said inlet when said rope (2) is pulled, in order to release said connecting member (1).
Description
Technical Field
The invention belongs to the field of medical instruments, and particularly relates to an implant delivery device in a body and a delivery system.
Background
Aneurysms are bumps or bumps formed on the walls of human arteries, where cerebral aneurysms can cause severe pain, with a fatal risk once ruptured; in the non-invasive or minimally invasive treatment of aneurysms, delivery systems are generally used to deliver embolization devices or implants (such as coils, stents or intracapsular meshes) into or at the aneurysm to prevent the aneurysm from being impacted by blood flow, promote thrombosis in the aneurysm, and gradually shrink the aneurysm to achieve the purpose of healing.
In the conventional mechanical separation system for delivering the embolic device, the reliability of fixation and release of the embolic device or the implant is to be improved, i.e., there is still room for improvement in the delivery device and delivery system of the implant for treating cerebral aneurysm, and clinically, there is also a need to provide a delivery device and delivery system capable of reliably fixing and releasing the embolic device.
Disclosure of Invention
It is an object of the present invention to provide an implant delivery device in vivo to solve the problems set forth in the background above.
In order to achieve the purpose, the invention provides the following technical scheme:
an intracorporeal implant delivery device, an end of the implant being provided with a connecting member, the intracorporeal implant delivery device comprising:
the front end of the pipe body is provided with a collision structure, one end, facing the connecting member, of the collision structure is provided with an inlet through which the connecting member passes, when the connecting member is inserted from the inlet and pushed to reach a specified position, the inlet is reduced, and the collision structure collides the connecting member to fix the connecting member;
a rope having one end connected to an opening part capable of reopening the inlet to release the connection member when the rope is pulled.
Conflict structure including the slope set up in the conflict pole of the spine form of body inner wall, the conflict pole has a plurality of, a plurality of the conflict pole encloses into the entry, the entry by the root of conflict pole to the most advanced extension of conflict pole, its diameter reduces gradually, a plurality of the equidistant setting of conflict pole, a plurality of the most advanced position of conflict pole is close to each other, the material of conflict pole is plastics.
The opening part comprises a contact ring arranged above the contact rod, the contact ring is fixedly connected with the inner wall of the pipe body through a connecting part, the connecting part is provided with at least two, and the connecting part is provided with a transverse cutting groove.
The inner wall of the tube body is also provided with a limiting bulge, and the limiting bulge is arranged on the outer side of the spine-shaped touch bar and is fixedly connected with the inner wall of the tube body.
The limiting bulge is annular or arc-shaped.
The connection rope is installed below the contact ring, and one end of the connection rope, which is far away from the contact ring, is connected with the rope-shaped object.
A limiting plate is arranged below the spine-shaped abutting rod, and a first through hole for the connecting rope to pass through is formed in the limiting plate.
An intracorporeal implant delivery device, an end of the implant being provided with a connecting member, the intracorporeal implant delivery device comprising:
the front end of the pipe body is provided with a collision structure, one end, facing the connecting member, of the collision structure is provided with an inlet through which the connecting member passes, when the connecting member is inserted from the inlet and pushed to reach a specified position, the inlet is reduced, and the collision structure collides the connecting member to fix the connecting member;
a rope having one end connected to an opening part capable of reopening the inlet to release the connection member when the rope is pulled.
The conflict structure is including holding the piece, be connected with the hook under the holding the piece, the upper end of holding the piece forms the entry.
The containing piece is an angular piece, the angular piece comprises a baffle and a connecting plate, the connecting end of the baffle and the connecting plate is movably connected with the inner wall of the pipe body, and one side, far away from the baffle, of the connecting plate is connected with the hook body.
The movable plate is arranged below the accommodating piece, the hook body is matched with the movable plate, and the lower portion of the movable plate is fixedly connected with the rope-shaped object.
And a support plate is arranged below the movable plate, and a second through hole for the rope-shaped object to pass through is formed in the support plate.
And a spring is arranged between the abutting plate and the movable plate, and two ends of the spring are respectively connected with the movable plate and the abutting plate.
An extension plate is arranged between the abutting plate and the movable plate and connected with the pipe body, the extension plate is matched with the movable plate, and a rubber layer is arranged on the extension plate or the movable plate.
The edge of the extension plate is provided with an annular cutting groove.
An intracorporeal implant delivery system comprising an intracorporeal implant delivery device of the above embodiments.
The implant delivery system in vivo also comprises an end sleeve, the end sleeve is detachably connected with the tube body, and the other end of the rope-shaped object is fixedly connected with the inner wall of the end sleeve.
And a flexible section is arranged on the pipe body close to the front end of the pipe body.
The beneficial technical effects of the invention compared with the prior art are that,
inserting a connecting member from the inlet, and pushing the connecting member to a specified position, wherein the inlet is reduced, and the collision structure is in collision with the connecting member to fix the connecting member; the opening part is capable of reopening the inlet to release the connecting member when the rope is pulled; the invention can effectively fix and release the connecting component and has higher reliability and clinical use value.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a sectional view of the first embodiment;
FIG. 3 is an enlarged view of a portion of FIG. 2;
FIG. 4 is a perspective view of the first embodiment;
FIG. 5 is an enlarged view of a portion of FIG. 4;
FIG. 6 is a sectional view of the second embodiment;
FIG. 7 is an enlarged view of a portion of FIG. 6;
FIG. 8 is a perspective view of a second embodiment;
fig. 9 is a partially enlarged view of fig. 8.
1. A connecting member; 2. a rope-like object; 3. a flexible section; 4. a pipe body; 5. end sleeves; 61. a contact ring; 62. transversely grooving; 63. a connecting portion; 64. a touch bar; 65. connecting ropes; 66. a limiting plate; 67. a limiting bulge; 68. a first through hole; 70. annular grooving; 71. a movable plate; 72. a hook body; 73. a baffle plate; 74. a connecting plate; 75. a spring; 76. a resisting plate; 77. a second through hole; 78. an extension plate; 79. a rubber layer.
Detailed Description
The invention is further described with reference to the following figures and specific embodiments.
Example 1
An intracorporeal implant delivery device, an end of the implant being provided with a connecting member 1, comprising:
a pipe body 4, wherein a collision structure is arranged at the front end of the pipe body 4, an inlet through which the connecting member 1 passes is arranged at one end of the collision structure facing the connecting member 1, when the connecting member 1 is inserted from the inlet and pushed to reach a designated position, the inlet is reduced, and the collision structure forms collision on the connecting member 1 so as to fix the connecting member 1;
a rope 2, one end of which is connected to an opening part, which can reopen the inlet to release the connection member 1 when the rope 2 is pulled.
In order to ensure the identification at the designated position, a mark may be previously formed at the rear of the connecting member 1, and when the mark is inserted to the position, the pushing operation is stopped (example 2 and example 3 are the same).
Conflict structure including the slope set up in the conflict pole 64 of the spine form of 4 inner walls of body, conflict pole 64 has a plurality of, a plurality of conflict pole 64 encloses into the entry, the entry by conflict pole 64 the root to the most advanced extension of conflict pole 64, its diameter reduces gradually, a plurality of the equidistant setting of conflict pole 64, a plurality of the most advanced position of conflict pole 64 is close to each other, the material of conflict pole 64 is plastics to guarantee that elastic deformation can take place for the conflict pole 64.
The connecting member 1 may be a sphere, the smallest diameter of the inlet (the diameter of the inlet bounded by the tip region of the abutment rod 64) should be much smaller than the diameter of the sphere; during the installation, promote connecting elements 1, when making it remove to its other end by the one end of entry, along with the reduction of entry diameter, connecting elements 1 can extrapolate conflict pole 64, elastic deformation can take place for plastic material's conflict pole 64, finally, connecting elements 1 breaks away from the tip part of conflict pole 64, get into body 4, and this moment, conflict pole 64 reconversion, if connecting elements 1 is stimulateeed in the opposite direction, it is unanimous and synchronous expanding outward to hardly guarantee the tip part deformation direction of a plurality of conflict pole 64, connecting elements 1 can't be backward through the entry, consequently, can carry out better fixed to connecting elements 1 through this structure.
The opening part comprises a contact ring 61 arranged above a contact rod 64, the contact ring 61 is fixedly connected with the inner wall of the pipe body 4 through a connecting part 63, the number of the connecting parts 63 is at least two, a transverse cutting groove 62 is formed in the connecting part 63, and the cross section of the transverse cutting groove can be inverted triangle in order to facilitate the fracture of the transverse cutting groove 62.
When the opening member is pulled, the opening member is easily separated from the inner wall of the tube body 4 due to the existence of the slit 62.
The inner wall of the pipe body 4 is further provided with a limiting bulge 67, and the limiting bulge 67 is arranged on the outer side of the spike-shaped touch bar 64 and fixedly connected with the inner wall of the pipe body 4.
When pulling the interference ring 61, prevent that the interference ring 61 breaks away from with the conflict pole 64 via the entry, can also set up spacing arch 67, avoid the implant to be delivered to the assigned position after, can't break away from with body 4 smoothly.
The limiting protrusion 67 is annular or arc-shaped.
A connecting rope 65 is installed below the contact ring 61, and one end of the connecting rope 65, which is far away from the contact ring 61, is connected with the rope-shaped object 2.
After delivering the implant in place, the coupling member 1 can be detached from the tubular body 4 when the minimum diameter of the access opening is greater than the diameter of the coupling member 1, by pulling the opening member, i.e. the interference ring 61, towards said interference rod 64, in order to prop open the access opening formed by the interference rod 64.
A limiting plate 66 is arranged below the spike-shaped touch bar 64, and a first through hole 68 for the connecting rope 65 to pass through is arranged on the limiting plate 66.
The connecting string 65 is positioned between the two abutting rods 64, and therefore, when the string-like object 2 is pulled, the connecting string 65 does not interfere with the abutting rods 64.
Example 2
An intracorporeal implant delivery device, an end of the implant being provided with a connecting member 1, comprising:
a pipe body 4, wherein a collision structure is arranged at the front end of the pipe body 4, an inlet through which the connecting member 1 passes is arranged at one end of the collision structure facing the connecting member 1, when the connecting member 1 is inserted from the inlet and pushed to reach a designated position, the inlet is reduced, and the collision structure forms collision on the connecting member 1 so as to fix the connecting member 1;
a rope 2, one end of which is connected to an opening part, which can reopen the inlet to release the connection member 1 when the rope 2 is pulled.
The interference structure comprises an accommodating piece, a hook body 72 is connected below the accommodating piece, and the upper end of the accommodating piece forms the inlet.
The receiving means should at least be able to receive the connecting member 1. When the coupling member 1 is pushed in from one side of the receiving member, the receiving member can be rotated relative to the inner wall of the tubular body 4 so that the diameter of the inlet formed at the upper end of the receiving member is reduced.
Further, the accommodating member is an angle member, the angle member includes a baffle 73 and a connecting plate 74, the connecting end of the baffle 73 and the connecting plate 74 is movably connected with the inner wall of the tube body 4, and the side of the connecting plate 74 away from the baffle 73 is connected with the hook body 72.
The receiving member is an angle-shaped member, which is an alternative, and when the connecting member 1 is pushed, the connecting member 1 enters from the inlet, the hooks 72 are pressed down, the spacing between the hooks 72 is increased, and the spacing of the free ends of the baffles 73 is decreased, so that the connecting member 1 is closed and blocked.
A movable plate 71 is arranged below the accommodating piece, the hook body 72 is matched with the movable plate 71, under a certain condition, the hook body 72 can hook the edge of the movable plate 71, and the lower part of the movable plate 71 is fixedly connected with the rope-shaped object 2.
A supporting plate 76 is arranged below the movable plate 71, and a second through hole 77 for the rope-shaped object 2 to pass through is arranged on the supporting plate 76.
A spring 75 is arranged between the abutting plate 76 and the movable plate 71, and two ends of the spring 75 are respectively connected with the movable plate 71 and the abutting plate 76.
When the connecting member 1 is mounted and fixed, as the connecting member 1 is continuously pushed in, the distance between the hooks 72 gradually increases, the movable plate 71 synchronously compresses the spring 75, when the distance between two connecting points (the connecting points of the hooks 72 and the connecting plate 74) is larger than the diameter of the movable plate 71, the hooks 72 are separated from the movable plate 71, at this time, the movable plate 71 is rapidly reset and abutted against the connecting member 1 under the action of the spring 75, the movable plate 71 pushes the connecting member 1 outwards, and the side of the connecting member 1, which is far away from the movable plate 71, is limited by the baffle 73, therefore, the baffle 73 can reversely pull the hooks 72 to hook the movable plate 71, at this time, the distance between the baffles 73 is smaller than the initial state, the connecting member 1 cannot be separated from the opening formed by the baffle 73 at this time, and therefore, the connecting member 1 can be fixed.
The diameter of the movable plate 71 is smaller than that of the connecting member 1 (the connecting member 1 is a sphere), so as to ensure that the two hooks 72 can always receive the contact force of the connecting member 1 when not being separated from the movable plate 71.
An extension plate 78 is arranged between the abutting plate 76 and the movable plate 71, the extension plate 78 is connected with the pipe body 4, the extension plate 78 is matched with the movable plate 71, and a rubber layer 79 is arranged on the extension plate 78 or the movable plate 71.
The abutting plate 76 may be provided with a plurality of through holes (not shown) around the second through hole 77 for blood to pass through.
The edge of the extension plate 78 is provided with an annular undercut 70.
After the implant is transported to the designated position, the movable plate 71 is driven to move towards the abutting plate 76 by pulling the rope-shaped object 2, the spring 75 is compressed, when the spring 75 is compressed to a certain degree, the hook body 72 is unhooked from the movable plate 71, the movable plate 71 also completely enters and is embedded in the extension plate 78, the rubber layer 79 enables a large friction force to be generated between the movable plate 71 and the extension plate 78, and in actual production, the rubber with the large friction force is selected to prepare the rubber layer 79, to ensure that the frictional force between the movable plate 71 and the extension plate 78 is greater than the restoring force of the spring 75, and therefore, under the action of the return force of the spring 75, the movable plate 71 can be pushed to move towards the angle piece together with the extension plate 78, at this time, the movable plate 71 and the extension plate 78 act together on the hook 72, thereby assisting the outward movement of the connecting member 1 and ensuring that the connecting member 1 can be disengaged from the receiving piece or the angle piece.
In order to identify the designated position, a mark a may be provided on the rope 2 on a side away from the movable plate 71, and when the rope 2 is pulled, the mark a moves out of the sheath 4, indicating that the hook 72 is unhooked from the movable plate 71, and the movable plate 71 also completely enters into the embedded extension plate 78.
In actual production, the following conditions need to be met: when the movable plate 71 is completely inserted into the extension plate 78, the friction force therebetween is greater than the bearable external force of the annular slot 70, so as to ensure that: when the movable plate 71 is completely inserted into the extension plate 78, the annular groove 70 is broken, and the extension plate 78 is separated from the pipe body 4.
Example 3
An intracorporeal implant delivery system comprising an intracorporeal implant delivery device of the above embodiments.
The implant delivery system in vivo further comprises an end sleeve 5, the end sleeve 5 is detachably connected with the tube body 4, and the other end of the rope-shaped object 2 is fixedly connected with the inner wall of the end sleeve 5.
After pushing the implant to the designated position, the end sleeve 5 is detached, and the rope-shaped object 2 is pulled, so that the implant can be separated from the pipe body 4.
In order to enable the pipe body 4 to bend and deflect during transport, a flexible section 3 is provided on the pipe body 4 near the front end thereof.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention are intended to be included in the scope of the present invention.
Claims (17)
1. An intracorporeal implant delivery device, the end of said implant being provided with a connecting member (1), characterized in that: the in vivo implant delivery device includes:
the pipe body (4), wherein the front end of the pipe body (4) is provided with a collision structure, one end of the collision structure, facing the connecting member (1), is provided with an inlet through which the connecting member (1) passes, when the connecting member (1) is inserted from the inlet and pushed to reach a specified position, the inlet is reduced, and the collision structure forms collision on the connecting member (1) so as to fix the connecting member (1);
a rope (2), one end of said rope (2) being connected to an opening means, said opening means being able to reopen said inlet when said rope (2) is pulled, in order to release said connecting member (1).
2. An implant delivery device in vivo according to claim 1, wherein said interference structure comprises a plurality of spike-shaped interference rods (64) obliquely disposed on the inner wall of said tube (4), said interference rods (64) are provided in a plurality, said plurality of said interference rods (64) define said entrance, said entrance extends from the root of said interference rods (64) to the tip of said interference rods (64), the diameter of said entrance is gradually reduced, said plurality of said interference rods (64) are disposed at equal intervals, the tip parts of said plurality of said interference rods (64) are close to each other, and said interference rods (64) are made of plastic.
3. An implant delivery device according to claim 2, wherein the opening means comprises an abutment ring (61) arranged above the abutment rod (64), the abutment ring (61) being fixedly connected to the inner wall of the tubular body (4) by means of at least two connecting portions (63), the connecting portions (63) being provided with transverse slots (62).
4. An implant delivery device according to claim 3, wherein the inner wall of the tube (4) is further provided with a limiting protrusion (67), and the limiting protrusion (67) is arranged outside the spike-shaped contact rod (64) and is fixedly connected with the inner wall of the tube (4).
5. An intracorporeal implant delivery device according to claim 4, wherein said stopper protrusion (67) is ring-shaped or arc-shaped.
6. An implant delivery device in vivo according to claim 5, characterized in that a connecting string (65) is mounted below the abutment ring (61), and that an end of the connecting string (65) remote from the abutment ring (61) is connected to the string (2).
7. An implant delivery device according to claim 6, wherein a limiting plate (66) is arranged below the spike-like abutment rod (64), and a through hole (68) for passing the connecting string (65) is arranged on the limiting plate (66).
8. An intracorporeal implant delivery device according to claim 1, wherein said interference structure comprises a receiving member having a hook (72) attached therebelow, an upper end of said receiving member defining said entrance.
9. An implant delivery device according to claim 8, wherein the receiving member is an angled member comprising a baffle (73) and a connecting plate (74), the connecting end of the baffle (73) and the connecting plate (74) being movably connected to the inner wall of the tube (4), and the side of the connecting plate (74) remote from the baffle (73) being connected to the hook (72).
10. An implant delivery device in vivo according to claim 9, wherein a movable plate (71) is provided under said receiving member, said hook (72) is matched with said movable plate (71), and said movable plate (71) is fixedly connected with said rope (2) under.
11. An implant delivery device in vivo according to claim 10, wherein a resisting plate (76) is provided below the movable plate (71), and a second through hole (77) for the rope (2) to pass through is provided on the resisting plate (76).
12. An implant delivery device in vivo according to claim 11, wherein a spring (75) is provided between the abutting plate (76) and the movable plate (71), and both ends of the spring (75) are connected with the movable plate (71) and the abutting plate (76), respectively.
13. An implant delivery device in vivo according to claim 12, wherein an extension plate (78) is provided between the abutting plate (76) and the movable plate (71), the extension plate (78) is connected with the tube body (4), the extension plate (78) is matched with the movable plate (71), and a rubber layer (79) is provided on the extension plate (78) or the movable plate (71).
14. An intracorporeal implant delivery device according to claim 13, wherein an edge of said extension plate (78) is provided with an annular cutting slot (70).
15. An intracorporeal implant delivery system comprising an intracorporeal implant delivery device according to any one of claims 1 to 12.
16. An implant delivery system according to claim 15, further comprising a sleeve (5), wherein the sleeve (5) is detachably connected to the tube (4), and the other end of the string (2) is fixedly connected to the inner wall of the sleeve (5).
17. An intracorporeal implant delivery system according to claim 16, wherein said tube body (4) is provided with a flexible section (3) near its front end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210581056.5A CN114848073A (en) | 2022-05-26 | 2022-05-26 | In vivo implant delivery device and delivery system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210581056.5A CN114848073A (en) | 2022-05-26 | 2022-05-26 | In vivo implant delivery device and delivery system |
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| CN114848073A true CN114848073A (en) | 2022-08-05 |
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| CN202210581056.5A Pending CN114848073A (en) | 2022-05-26 | 2022-05-26 | In vivo implant delivery device and delivery system |
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