CN212261432U - Therapeutic device - Google Patents
Therapeutic device Download PDFInfo
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- CN212261432U CN212261432U CN202020193752.5U CN202020193752U CN212261432U CN 212261432 U CN212261432 U CN 212261432U CN 202020193752 U CN202020193752 U CN 202020193752U CN 212261432 U CN212261432 U CN 212261432U
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- limiting
- limiting part
- release hole
- treatment device
- inner cavity
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Abstract
The utility model relates to a treatment device, treatment device includes push rod, operating device, first spacing portion, the spacing portion of second and medical implant, wherein the spacing portion of second with medical implant connects, through adjusting first spacing portion with the relative position of the spacing portion of second can make medical implant follows fast the release has characteristics easy operation, convenient to use, that the release reliability is high on the push rod.
Description
Technical Field
The utility model relates to the technical field of medical equipment, concretely relates to treatment device.
Background
Cerebrovascular diseases such as intracranial aneurysm are one of three diseases causing human death, and interventional therapy is widely applied to the treatment of cerebrovascular diseases due to the advantages of small wound, fast recovery of patients, short treatment time and the like. Among them, embolization is a common treatment for intracranial aneurysms.
At present, the embolization treatment of intracranial aneurysms is mainly to fill coils in the cavity of the aneurysm to promote thrombosis of the aneurysm. In the clinical operation process of coil embolism of aneurysm, the operator needs to fill coil of different sizes into the cavity of aneurysm according to the actual condition of aneurysm, and the bigger the aneurysm is, the more coil that it needs to pack is, the longer the operation time. Each coil needs to go through three steps of delivery, placement and release during filling the cavity of the aneurysm, wherein release is the most critical step, and therefore it is important to design a treatment device with simple operation and high reliability.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a treatment device, this treatment device have easy operation, the characteristics that the reliability is high of breaking away.
In order to achieve the above object, the present invention provides a therapeutic device, comprising: the pushing rod, the first limiting part, the second limiting part, the operating mechanism and the medical implant are arranged in the box body; wherein the content of the first and second substances,
the pushing rod is provided with an inner cavity which is axially communicated, the inner cavity is provided with a first near end and a first far end which are opposite, and the pushing rod is provided with a first release hole communicated with the inner cavity;
the operating mechanism is used for driving the first limiting part to move in the inner cavity;
the medical implant is positioned outside the first far end of the inner cavity and is connected with the second limiting part;
the treatment device has a locked position, the treatment device configured to: in the locking position, the second limiting part is arranged in the inner cavity and is at least partially positioned on one side of the first release hole close to the first far end, the first limiting part is positioned in the inner cavity and is at least partially positioned on one side of the second limiting part close to the first far end, and the first limiting part is used for restraining the second limiting part so as to prevent the second limiting part from falling out of the inner cavity from the first far end; when the operating mechanism is acted by external force, the operating mechanism drives the first limiting part to move towards the first near end, and the first limiting part moves to one side, close to the first near end, of the second limiting part at the first release hole, so that the limitation of the second limiting part is removed.
Optionally, the pushing rod is further provided with a second release hole communicated with the inner cavity, the second release hole is opposite to the first release hole, in the radial direction of the pushing rod, the first limiting portion is arranged close to the second release hole, and the second limiting portion is arranged close to the first release hole.
Optionally, at least part of the outer surface of the first limiting part is a curved surface, and at least part of the outer surface of the second limiting part is a curved surface;
the treatment device is configured to: the first limiting part can move to one side, close to the first near end, of the second limiting part along the outer surface, which is a curved surface, of the second limiting part under the action of external force at the first release hole.
Optionally, the first limiting portion and the second limiting portion are both spherical structures, the diameter of the first limiting portion is smaller than the inner diameter of the pushing rod, and the diameter of the second limiting portion is smaller than or equal to the diameter of the first limiting portion.
Optionally, the sum of the diameters of the first limiting part and the second limiting part is 1.1-1.3 times of the inner diameter of the pushing rod.
Optionally, the first release hole is a circular hole, the second release hole is a kidney-shaped hole, and a length direction of the second release hole extends in an axial direction of the push rod.
Optionally, the diameter of the second position-limiting portion is 0.75-0.85 times the diameter of the first release hole; the straight diameter of the first limiting part is smaller than or equal to the width of the second release hole, and the width refers to the size of the second release hole in the circumferential direction of the push rod.
Optionally, in the locking position, the first limiting portion and the second limiting portion are both in contact with a cavity wall of the inner cavity located on one side, close to the first distal end, of the first release hole, and the cavity wall of the inner cavity, the first limiting portion and the second limiting portion are pressed against each other, so that the first limiting portion and the second limiting portion are fixed in position in the axial direction of the push rod.
Optionally, the operating mechanism is a release wire, the release wire includes a second proximal end and a second distal end that are opposite to each other, the release wire extends in the inner cavity, the second distal end is connected to the first limiting portion, and the release wire can drive the first limiting portion to move along the axial direction of the push rod under the action of an external force.
Optionally, the first release hole is disposed on the inner wall of the inner cavity and located on a side of the first release hole close to the first proximal end; the third limiting part is used for limiting the releasing wire so as to prevent the releasing wire from moving to the first far end along the axial direction of the pushing rod in the locking position.
Optionally, a fourth limiting portion is formed on the releasing wire, in the locking position, the first limiting portion and the second limiting portion are both located on one side of the third limiting portion close to the first distal end, the fourth limiting portion is located on one side of the third limiting portion close to the first proximal end, and the fourth limiting portion abuts against the third limiting portion.
Optionally, the third limiting portion and the pushing rod are integrally formed.
Optionally, the pushing rod includes a first section and a second section which are coaxially arranged, the first section and the second section are both hollow structures, the first release hole is formed on the second section, and a connecting portion is arranged at one end of the second section close to the first section, the connecting portion is inserted into the first section and connected with the first section, and the connecting portion forms the third limiting portion.
Optionally, the medical implant is an embolic coil.
Compared with the prior art, the utility model discloses a treatment device has following advantage:
first, the aforementioned therapeutic device includes a push rod, a first limit portion, a second limit portion, an operating mechanism, and a medical implant, where the push rod has an inner cavity that is axially through, the inner cavity has a first proximal end and a first distal end that are opposite to each other, a first release hole is formed in the push rod, the first release hole is communicated with the inner cavity, the operating mechanism is configured to drive the first limit portion to move, the second limit portion is connected to the medical implant, and the medical implant is disposed outside the first distal end of the inner cavity. Before the therapeutic device is released, the therapeutic device is in a locking position, in the locking position, the second limiting part is arranged in the inner cavity and is at least partially positioned on one side of the first release hole facing the first far end, the first limiting part is positioned in the inner cavity and is at least partially positioned on one side of the second limiting part close to the first far end, and the first limiting part limits the second limiting part so as to prevent the second limiting part from being separated from the inner cavity from the first far end. When the medical implant is required to be released, the operating mechanism drives the first limiting part to move towards the first near end under the action of external force, the first limiting part extrudes the second limiting part at the position of the first release hole, so that the second limiting part gives way to the first release hole, the first limiting part can penetrate through the second limiting part and continuously moves to one side, close to the first near end, of the first release hole, the limitation on the second limiting part is relieved, and then the second limiting part can be released from the first far end to the inner cavity to complete the release of the medical implant. The treatment device has the characteristics of simple operation and high releasing reliability.
And second release holes communicated with the inner cavity are further formed in the push rod, the second release holes are arranged opposite to the first release holes, the two release holes are arranged, so that jamming in the releasing process can be effectively avoided, and releasing reliability is improved.
Drawings
Fig. 1 is a schematic structural view of a treatment apparatus according to an embodiment of the present invention, the treatment apparatus being shown in a locked position;
fig. 2 is a schematic structural view of the therapeutic device according to an embodiment of the present invention, illustrating the first position-limiting portion and the second position-limiting portion moving to the position of the first releasing hole;
fig. 3 is a schematic structural view of the treatment device according to an embodiment of the present invention, illustrating the first position-limiting portion being free from the restriction of the second position-limiting portion;
FIG. 4 is a schematic structural view of the treatment apparatus according to one embodiment of the present invention, illustrating the release of the traditional Chinese medical implant from the push rod;
fig. 5 is a schematic structural diagram of a treatment device according to another embodiment of the present invention.
[ reference numerals are described below ]:
100-a push rod;
110-a first segment, 120-a second segment, 101-a first release hole, 102-a second release hole;
200-a first limit portion;
300-a second limiting part;
400-a medical implant;
500-releasing the silk;
510-a fourth limiting part;
600-third limit portion.
Detailed Description
To make the objects, advantages and features of the present invention clearer, embodiments of the present invention are described in further detail below with reference to the accompanying drawings. It should be noted that the drawings are in simplified form and are not to precise scale, and are provided for convenience and clarity in order to facilitate the description of the embodiments of the present invention.
As used in this specification, the singular forms "a," "an," and "the" include plural referents unless the content clearly dictates otherwise. As used in this specification, the term "or" is generally employed in its sense including "and/or" unless the content clearly dictates otherwise, and the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either fixedly connected, detachably connected, or integrally connected. Either mechanically or electrically. Either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art. The same or similar reference numbers in the drawings identify the same or similar elements.
As used herein, the terms "proximal" and "distal" refer to the relative orientation, relative position, and orientation of elements or actions with respect to one another from the perspective of a clinician using the medical device, and although "proximal" and "distal" are not intended to be limiting, the term "proximal" generally refers to the end of the medical device that is closer to the clinician during normal operation, and the term "distal" generally refers to the end that is first introduced into a patient.
The embodiment of the utility model provides a treatment device, as shown in fig. 1, treatment device includes push rod 100, first spacing portion 200, spacing portion 300 of second, operating device and medical implant 400. The pushing rod 100 has an inner cavity extending axially therethrough, the inner cavity has a first proximal end and a first distal end opposite to each other, and the pushing rod 100 is provided with a first release hole 101 communicating with the inner cavity. The operating mechanism is used for driving the first limiting part to move in the inner cavity under the action of external force. The medical implant 400 is disposed outside the first distal end of the inner cavity and connected to the second position-limiting portion 300. In this embodiment, the therapeutic device may be applied to interventional therapy of cerebrovascular diseases, and the medical implant 400 includes, but is not limited to, embolic coils, medical stents, etc. In actual use, the therapeutic device will extend into the blood vessel of the human body, so the pushing rod 100 is designed as a cylindrical tube body to avoid damage to the inner wall of the blood vessel.
The treatment device has a locking position, in the locking position, the first position-limiting part 200 and the second position-limiting part 300 are both disposed in the inner cavity, wherein the second position-limiting part 300 is at least partially located on one side of the first release hole 101 close to the first distal end, the first position-limiting part 200 is at least partially located on one side of the second position-limiting part 300 close to the first distal end, and the first position-limiting part 200 is further configured to constrain the second position-limiting part 300, so as to prevent the second position-limiting part 300 from falling out of the inner cavity from the first distal end. When the operating mechanism receives an external force, the operating mechanism drives the first position-limiting portion 200 to move towards the first proximal end, and the second position-limiting portion 300 moves to the first release hole 101 together with the first position-limiting portion 200. At the first release hole 101, the first position-limiting portion 200 can pass through the second position-limiting portion 300 and move continuously to a side of the second position-limiting portion 300 close to the first proximal end. Thus, the first stopper portion 200 releases the restriction of the second stopper portion 300, and the second stopper portion 300 can be pulled out of the inner cavity from the first distal end to complete the detachment of the medical implant 400. The treatment device has the characteristics of simple structure, convenient operation and high disengagement reliability. It is understood that the term "external force" refers to forces from elements other than the force-bearing element.
In this embodiment, at least a portion of the outer surface of the first position-limiting portion 200 is a curved surface, and at least a portion of the outer surface of the second position-limiting portion 300 is a curved surface. Thus, at the first release hole 101, the first stopper 200 can move along the curved outer surface of the second stopper 300 to reach the first proximal end of the second stopper 300.
In general, the shape of the first stopper portion 200 and the second stopper portion 300 may not be strictly limited as long as they can have an outer surface that is at least partially curved, such as a spherical shape, an ellipsoidal shape, or other irregular shapes. However, from the viewpoint of easy processing and improved releasing reliability, it is preferable that the first stopper portion 200 and the second stopper portion 300 have a spherical structure. The diameter of the first limiting portion 200 is smaller than the inner diameter of the push rod 100, and the diameter of the second limiting portion 300 is smaller than or equal to the diameter of the first limiting portion 200.
Further, the diameter of the first position-limiting portion 200 is D1The diameter of the second limiting part 300 is D2The diameter of the push rod 100 is D3，D1、D2And D3The following relationship can be satisfied:
D1：D3＝0.5-0.8；
D2：D3＝0.5-0.8；
(D1+D2)：D3＝1.1-1.3；
it is understood that if the cross-section of the inner cavity is also circular, the inner diameter of the push rod 100 refers to the diameter of the inner cavity, and if the cross-section of the inner cavity is non-circular, the inner diameter of the push rod 100 refers to the diameter of the circle inscribed in the cross-section of the inner cavity.
Furthermore, the push rod 100 is further provided with a second release hole 102, the release hole 102 is arranged opposite to the first release hole 101, that is, the center of the second release hole 102 and the center of the first release hole 101 are located on the same circumference, and the connection line of the two is on the same radial line of the push rod 100, so that the strength of the push rod 100 is ensured, and the push rod 100 is prevented from being deformed or broken in the releasing process. In the radial direction of the push lever 100, the second stopper 300 is disposed near the first release hole 101, and the first stopper 200 is disposed near the second release hole 102. By providing the second releasing hole 102, when the first position-limiting portion 200 and the third position-limiting portion 300 move to the first releasing hole 101, the second releasing hole 102 can provide a yielding space for the first position-limiting portion 200, so as to effectively prevent the first position-limiting portion 200 from being blocked when passing through the second position-limiting portion 300, thereby improving the releasing success rate.
In this embodiment, the first release hole 101 is a circular hole, the second release hole 102 is a waist-shaped hole, and a length direction of the second release hole 102 extends along an axial direction of the push rod 100. Preferably, the diameter D of the second stopper 3002The diameter D of the first position-limiting part 200 is 0.75-0.85 times of the diameter of the first release hole 1011Is less than or equal to the width of the second release hole 102, which refers to the dimension of the second release hole 102 in the circumferential direction of the push rod 100.
Further, the operating mechanism is a release wire 500, and the release wire 500 includes a second proximal end and a second distal end that are opposite. The release wire 500 extends within the lumen and the second distal end is connected to the first stop 200. When the releasing wire 500 is acted by an external force, the releasing wire 500 can move axially in the inner cavity, and further drives the first limiting portion 200 to move.
In actual manufacturing, the release wire 500 and the first position-limiting portion 200 may be integrally formed, and the medical implant 400 and the second position-limiting portion 300 may be integrally formed.
The process of releasing the medical implant of the treatment device is described below with reference to fig. 1-4.
The treatment device is in the locked position until the medical implant 400 is delivered in place. Fig. 1 shows a schematic view of the treatment apparatus in the locked position, and as shown in fig. 1, the first position-limiting part 200 is at least partially located on a side of the second position-limiting part 300 close to the first distal end to limit the second position-limiting part 300, so as to prevent the second position-limiting part 300 from falling out of the inner cavity from the first distal end to cause the medical implant 400 to fall off. Preferably, in the locking position, the first position-limiting part 200 is in contact with the cavity wall of the inner cavity located at the first release hole 101 near the first distal end, and the third position-limiting part 300 is also in contact with the cavity wall of the inner cavity located at the first release hole 101 near the first distal end, while the first position-limiting part 200 is tangent to the second position-limiting part. Thus, the cavity wall of the inner cavity, the first position-limiting portion 200 and the third position-limiting portion 300 are pressed against each other, so that the first position-limiting portion 200 and the second position-limiting portion 300 are fixed in the axial direction of the push rod 100. Such an arrangement is advantageous in that it facilitates operator adjustment of the orientation of the medical implant 400 prior to detachment.
Then, the operator pulls the release wire 500, the release wire 500 drives the first position-limiting portion 200 to move towards the first proximal end, and the second position-limiting portion 300 moves along with the first position-limiting portion 200. Fig. 2 shows a schematic view of the first stopper portion 200 and the second stopper portion 300 moving to the first release hole 101. In the position shown in fig. 2, the operator continues to pull the release wire 500, the first position-limiting portion 200 presses the second position-limiting portion 300, so that the second position-limiting portion 300 at least partially recedes into the first release hole 101, meanwhile, the first position-limiting portion 200 at least partially recedes into the second release hole 102, and the first position-limiting portion 200 continues to move towards the first proximal end along the outer surface of the second position-limiting portion 300.
Fig. 3 shows a schematic view of the first position-limiting portion 200 moving to the side of the second position-limiting portion 300 close to the first proximal end, where the first position-limiting portion 200 releases the limitation of the second position-limiting portion 300.
Next, the operator retracts the push rod 100, so that the second stopper 300 escapes from the inner cavity from the first distal end, to complete the release of the medical implant 400. Fig. 4 is a schematic view showing the medical implant 400 being disengaged from the push rod 100.
In the treatment device, it is further required to ensure that the first position-limiting part 200 does not fall out of the inner cavity from the first distal end, and therefore, the treatment device further includes a third position-limiting part 600, and the third position-limiting part 600 is disposed on the cavity wall of the inner cavity and is located on the side of the first release hole 101 close to the first proximal end. In the locked position, the third position limiting portion 600 is used to constrain the release wire 500 to prevent the release wire 500 from moving toward the first distal end and causing the first position limiting portion 200 to exit the lumen from the first distal end.
Referring to fig. 1, a fourth position-limiting portion 510 is formed on the releasing wire 500, for example, the releasing wire 500 is in a Z-shaped structure and includes a first portion, a second portion and a third portion connected in sequence, where the first portion and the third portion are parallel to the axial direction of the pushing rod 100, the second portion is parallel to the radial direction of the pushing rod 100, and the second portion is the fourth position-limiting portion 510. In the locking position, the fourth stopper portion 510 abuts against the third stopper portion 600 on a side close to the first proximal end.
Further, the third position-limiting portion 600 may have different forms according to the structural form of the push rod 100. For example, as shown in fig. 1, when the pushing rod 100 is a continuous cylindrical tube, the third limiting portion 600 is integrally formed with the pushing rod 100, and may be a ring of continuous annular blocking wall or a protrusion arranged at intervals along a circumference of the inner cavity, and the third limiting portion 600 has a through hole for the release wire 500 and the first limiting portion 200 to pass through. As another example, in the embodiment shown in fig. 5, the push rod 100 is a splicing structure, specifically, the push rod 100 includes a first segment 110 and a second segment 120 coaxially arranged, the first segment 110 and the second segment 120 are both hollow structures, and the first release hole 101 is disposed on the second segment 120. The second segment 120 is provided with an annular connecting portion near one end (i.e., a proximal end) of the first segment 110, the connecting portion being inserted into the first segment 110 and connected (e.g., laser welded) to the first segment 110. At this time, the connecting portion may constitute the third stopper portion 600.
In addition, it should be understood that the second proximal end of the release wire 500 is fixed before the release (i.e., the locking position) is performed, and the length of the release wire 500 is adjusted to generate a tension in the release wire 500 itself, and the fourth position-limiting part 510 always abuts against the third position-limiting part 600 under the tension, so that the therapeutic device is maintained in the locking position. It is understood that the adjustment of the release wire 500 to generate tension is well known to those skilled in the art and will not be described herein.
Although the present invention is disclosed above, it is not limited thereto. Various modifications and alterations of this invention may be made by those skilled in the art without departing from the spirit and scope of this invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (14)
1. A therapeutic device, comprising: the pushing rod, the first limiting part, the second limiting part, the operating mechanism and the medical implant are arranged in the box body; wherein the content of the first and second substances,
the pushing rod is provided with an inner cavity which is axially communicated, the inner cavity is provided with a first near end and a first far end which are opposite, and the pushing rod is provided with a first release hole communicated with the inner cavity;
the operating mechanism is used for driving the first limiting part to move in the inner cavity;
the medical implant is positioned outside the first far end of the inner cavity and is connected with the second limiting part;
the treatment device has a locked position, the treatment device configured to: in the locking position, the second limiting part is arranged in the inner cavity and is at least partially positioned on one side of the first release hole close to the first far end, the first limiting part is positioned in the inner cavity and is at least partially positioned on one side of the second limiting part close to the first far end, and the first limiting part is used for restraining the second limiting part so as to prevent the second limiting part from falling out of the inner cavity from the first far end; when the operating mechanism is acted by external force, the operating mechanism drives the first limiting part to move towards the first near end, and the first limiting part moves to one side, close to the first near end, of the second limiting part at the first release hole, so that the limitation of the second limiting part is removed.
2. The treatment device of claim 1, wherein the pushing rod further defines a second release hole communicating with the inner cavity, the second release hole is opposite to the first release hole, and the first position-limiting portion is disposed close to the second release hole and the second position-limiting portion is disposed close to the first release hole in a radial direction of the pushing rod.
3. The treatment device of claim 2, wherein the outer surface of the first restraint portion is at least partially curved and the outer surface of the second restraint portion is at least partially curved;
the treatment device is configured to: the first limiting part can move to one side, close to the first near end, of the second limiting part along the outer surface, which is a curved surface, of the second limiting part under the action of external force at the first release hole.
4. The treatment device of claim 3, wherein the first and second limiting portions are both spherical structures, and the diameter of the first limiting portion is smaller than the inner diameter of the push rod, and the diameter of the second limiting portion is smaller than or equal to the diameter of the first limiting portion.
5. The treatment device of claim 4, wherein the sum of the diameters of the first and second limiting portions is 1.1-1.3 times the inner diameter of the push rod.
6. The treatment device of claim 4, wherein the first release hole is a circular hole, the second release hole is a kidney-shaped hole, and the length direction of the second release hole extends along the axial direction of the push rod.
7. The treatment device of claim 6, wherein the diameter of the second stopper is 0.75-0.85 times the diameter of the first release hole; the straight diameter of the first limiting part is smaller than or equal to the width of the second release hole, and the width refers to the size of the second release hole in the circumferential direction of the push rod.
8. The treatment device according to any one of claims 1 to 7, wherein in the locked position, the first and second position-limiting portions are both in contact with a wall of the inner cavity on a side of the first release hole near the first distal end, and the wall of the inner cavity, the first position-limiting portion, and the second position-limiting portion are pressed against each other, so that the first and second position-limiting portions are fixed in position in the axial direction of the push rod.
9. The treatment device of claim 1, wherein the operating mechanism is a release wire including a second proximal end and a second distal end opposite to the first proximal end, the release wire extends within the lumen, and the second distal end is connected to the first position-limiting portion, and the release wire is capable of driving the first position-limiting portion to move axially along the push rod under an external force.
10. The treatment device of claim 9, further comprising a third stop disposed on a wall of the inner lumen on a side of the first relief aperture adjacent the first proximal end; the third limiting part is used for limiting the releasing wire so as to prevent the releasing wire from moving to the first far end along the axial direction of the pushing rod in the locking position.
11. The treatment device of claim 10, wherein the release wire has a fourth stop portion formed thereon, and wherein in the locked position, the first stop portion and the second stop portion are both located on a side of the third stop portion adjacent to the first distal end, the fourth stop portion is located on a side of the third stop portion adjacent to the first proximal end, and the fourth stop portion abuts against the third stop portion.
12. A treatment device as claimed in claim 10 or 11, wherein the third stop portion is integrally formed with the push rod.
13. The treatment device according to claim 10 or 11, wherein the pushing rod comprises a first section and a second section which are coaxially arranged, the first section and the second section are both hollow structures, the first release hole is formed in the second section, a connecting part is arranged at one end of the second section close to the first section, the connecting part is inserted into the first section and connected with the first section, and the connecting part forms the third limiting part.
14. The therapeutic device of any one of claims 1-7 and 9-11 wherein the medical implant is an embolic coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020193752.5U CN212261432U (en) | 2020-02-21 | 2020-02-21 | Therapeutic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020193752.5U CN212261432U (en) | 2020-02-21 | 2020-02-21 | Therapeutic device |
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| CN212261432U true CN212261432U (en) | 2021-01-01 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114948046A (en) * | 2022-04-11 | 2022-08-30 | 上海心玮医疗科技股份有限公司 | Delivery system for implant |
| CN115607219A (en) * | 2022-10-18 | 2023-01-17 | 南京思脉德医疗科技有限公司 | Release device for vascular embolism spring ring |
| WO2023010672A1 (en) * | 2021-08-02 | 2023-02-09 | 珠海通桥医疗科技有限公司 | Vascular embolism circlip system |
-
2020
- 2020-02-21 CN CN202020193752.5U patent/CN212261432U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023010672A1 (en) * | 2021-08-02 | 2023-02-09 | 珠海通桥医疗科技有限公司 | Vascular embolism circlip system |
| CN114948046A (en) * | 2022-04-11 | 2022-08-30 | 上海心玮医疗科技股份有限公司 | Delivery system for implant |
| CN114948046B (en) * | 2022-04-11 | 2023-02-28 | 上海心玮医疗科技股份有限公司 | Delivery system for implant |
| CN115607219A (en) * | 2022-10-18 | 2023-01-17 | 南京思脉德医疗科技有限公司 | Release device for vascular embolism spring ring |
| CN115607219B (en) * | 2022-10-18 | 2023-11-24 | 南京思脉德医疗科技有限公司 | Release device of vascular embolism spring ring |
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