CN113633446A - Thrombus-taking bracket catheter - Google Patents
Thrombus-taking bracket catheter Download PDFInfo
- Publication number
- CN113633446A CN113633446A CN202110778993.5A CN202110778993A CN113633446A CN 113633446 A CN113633446 A CN 113633446A CN 202110778993 A CN202110778993 A CN 202110778993A CN 113633446 A CN113633446 A CN 113633446A
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- catheter
- embolectomy
- thrombus
- stent
- pulley
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/95—Instruments specially adapted for placement or removal of stents or stent-grafts
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/95—Instruments specially adapted for placement or removal of stents or stent-grafts
- A61F2/9517—Instruments specially adapted for placement or removal of stents or stent-grafts handle assemblies therefor
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
Abstract
The invention provides a thrombus extraction stent catheter, which is characterized by comprising: a catheter body: the thrombus taking bracket is arranged at the position, close to the end part, of the catheter body; a handle connected to the other end of the catheter body; and the bending degree adjusting device is connected between the handle and the catheter body and is used for adjusting the bending degree of the catheter body so as to adjust the angle of the thrombus taking support. The technical scheme has the beneficial effects that the bending degree of the thrombus taking support can be adjusted, and the bending degree of the support can be adjusted according to the bending degree of a blood vessel of a patient so as to quickly pass through the blood vessel and reach the thrombus position; the operation time and the number of instruments used in the operation are reduced, the bending degree of the stent can be adjusted according to the bending degree of the blood vessel of the patient, and the stent can reach a deeper position of the thrombus; a spring device is arranged in the thrombus taking support catheter, so that the stress strain of the thrombus taking support can be effectively controlled during stretching, and thrombus can be effectively grabbed by the 3-layer mesh plate support structure.
Description
Technical Field
The invention relates to the technical field of medical equipment, in particular to a thrombus removal support catheter.
Background
Thrombosis refers to a pathological process in which, under certain conditions, the formed components in the circulating blood form emboli in blood vessels, which partially or completely blocks the blood vessels and hinders blood supply to the corresponding parts. A thrombus is a blood clot formed in the vascular system of a living body which is affected by the absence of intravascular blood flow, and thus has structural characteristics different from those of a blood clot formed in a quiescent state outside the body. Thrombosis can be seen in the atrioventricular cavities, arteries, veins, and microvessels. Clinically, acute events caused by thrombosis include acute myocardial infarction, ischemic stroke, pulmonary embolism, disseminated intravascular coagulation and the like, and are often life threatening. The thrombosis is formed by that platelets are adhered to the exposed collagen surface after vascular endothelial injury, and the adhered platelets release adenosine diphosphate and thromboxane to promote more platelets to adhere and aggregate to form platelet thrombosis. The types of thrombus mainly include white thrombus, red thrombus, cell thrombus and transparent thrombus.
At present, the treatment of thrombus mainly comprises anticoagulation treatment, thrombolytic treatment and interventional treatment. Patients with mild early onset should be treated with anticoagulant drugs or thrombolytic drugs in time, and patients who have been treated with internal medicine and have poor effect or serious thrombus blockage have better effect of surgical intervention treatment. The current surgical intervention mainly comprises catheter suction, stent embolectomy and combined use of the two. The thrombus removing method comprises incision thrombus removal, systemic thrombolysis, catheter thrombolysis, mechanical thrombus removal and the like. The therapeutic effect of mechanical embolectomy on patients with vascular occlusion has been demonstrated to have a good recanalization rate and safety compared to simple drug therapy. Stent embolectomy is the most widely used and is considered by most as a first-line treatment modality. The existing bolt taking support cannot be adjusted, so that the use scene of the bolt taking support is greatly limited.
Disclosure of Invention
Aiming at the problems of the thrombus removal stent catheter in the prior art, the thrombus removal stent catheter which aims to adjust the angle of the thrombus removal stent catheter so as to adapt to different use scenes is provided.
The specific technical scheme is as follows:
an embolectomy stent catheter, comprising:
a catheter body:
the thrombus taking bracket is arranged at the position, close to the end part, of the catheter body;
a handle connected to the other end of the catheter body;
and the bending degree adjusting device is connected between the handle and the catheter body and is used for adjusting the bending degree of the catheter body so as to adjust the angle of the thrombus taking support.
Preferably, the catheter body comprises a first catheter and a second catheter, and the thrombus removal support provides flexible connection between the first catheter and the second catheter.
Preferably, the camber adjusting device includes at least one pair of camber adjusting units, and the pair of camber adjusting units are respectively disposed on both sides of the handle.
Preferably, each of the camber adjusting units includes:
the connecting lead passes through the second guide pipe and the embolectomy bracket, and one end of the connecting lead is connected to one side of one inner side wall of the guide pipe;
and the pulley assembly is arranged on the handle and is connected with the other end of the connecting lead, and the pulley assembly is used for controllably releasing or contracting the connecting lead.
Preferably, the sheave assembly includes:
a pulley body;
the rotary switch is matched with the pulley body to control the rotation of the pulley body;
and the elastic piece is configured on the inner side of the pulley body, is connected with the connecting wire and is used for controlling the expansion of the connecting wire when the rotary switch controls the pulley body or providing corresponding expansion and contraction activities when the connecting wire is externally pulled and released.
Preferably, each embolectomy support is composed of a plurality of wires in a preset shape.
Preferably, a disk-shaped structure with a wide middle part and two contracted ends is formed among the plurality of metal wires.
Preferably, the embolectomy support comprises three disc structures, and a preset distance is reserved between every two adjacent disc structures.
Preferably, the embolectomy support is of an integrally formed structure.
Preferably, a developing ring is disposed between the tray structures.
The technical scheme has the following advantages or beneficial effects:
the stent bending degree of the thrombus taking is adjustable, and the stent bending degree can be adjusted according to the blood vessel bending degree of a patient so as to quickly pass through the blood vessel and reach the thrombus position;
the operation time and the number of instruments used in the operation are reduced, the bending degree of the stent can be adjusted according to the bending degree of the blood vessel of the patient, and the stent can reach a deeper position of the thrombus;
a spring device is arranged in the thrombus taking support catheter, so that the stress strain of the thrombus taking support can be effectively controlled during stretching, and thrombus can be effectively grabbed by the 3-layer mesh plate support structure.
Drawings
Embodiments of the present invention will now be described more fully hereinafter with reference to the accompanying drawings. The drawings are, however, to be regarded as illustrative and explanatory only and are not restrictive of the scope of the invention.
FIG. 1 is a schematic structural view of an embodiment of a catheter for an embolectomy stent of the present invention;
FIGS. 2-3 are schematic structural views of the catheter body and the wire connecting wire according to an embodiment of the present invention;
FIG. 4 is a schematic view of a first pulley assembly according to an embodiment of the present invention;
FIG. 5 is a schematic structural view of a pulley assembly II according to an embodiment of the present invention;
FIG. 6 is a schematic structural view of a second pulley assembly according to an embodiment of the present invention;
FIG. 7 is a schematic structural view of the second rotary switch and the second pulley body for locking together according to an embodiment of the catheter for a thrombectomy stent of the present invention;
FIG. 8 is a schematic structural view of the second rotary switch and the second pulley body being fixed together according to an embodiment of the catheter for a thrombectomy stent of the present invention;
FIG. 9 is a schematic view of an embodiment of a catheter for an embolectomy stent according to the present invention, illustrating the structure of the variation of the angle adjustment of the embolectomy stent;
FIG. 10 is a schematic structural view of a second elastic member in a variation of adjustment of the first angle adjustment unit according to an embodiment of the present invention;
FIG. 11 is a schematic structural diagram of a first elastic member in a variation of adjustment of a second angle adjustment unit according to an embodiment of the present invention.
The above reference numerals denote:
1. a catheter body; 2. a thrombus taking support; 3. a handle; 4. a camber adjusting device; 5. a catheter tail connection line; 6. a developing ring; 11. a first conduit; 12. a second conduit; 21. the disc body structures I and 22 and the disc body structure II; 23. a disc body structure III; 41. a first angle adjusting unit; 42. A second angle adjusting unit; 411. connecting a first lead; 412. a pulley assembly I; 4121. a first pulley body; 4122. a first rotary switch; 4123. a first elastic part; 421. a second connecting wire; 422. a pulley component II; 4221. a second pulley body; 4222. a second rotary switch; 4223. and a second elastic element.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
The invention is further described with reference to the following drawings and specific examples, which are not intended to be limiting.
The technical scheme of the invention comprises a thrombus taking support catheter.
As shown in FIG. 1, an embodiment of an embolectomy stent catheter comprises:
the catheter body 1:
the thrombus taking support 2 is arranged at the position, close to the end part, of the catheter body 1;
a handle 3 connected to the other end of the catheter body 1;
and the bending degree adjusting device 4 is connected between the handle 3 and the catheter body 1 and is used for adjusting the bending degree of the catheter body 1 and further adjusting the angle of the embolectomy support 2.
The existing embolectomy support 2 is fixed in size, and the embolectomy support 2 matched with the size of the existing embolectomy support 2 needs to be selected according to different blood vessel sizes, however, finding the embolectomy support 2 matched with the full size in the actual embolectomy process is difficult and is often close to the size, and thus the blood vessel is easily damaged. The existing embolectomy support 2 is very high in fineness because of being applied to a blood vessel, so that the size of the whole embolectomy support 2 is very small, the support is set to be adjustable, the technical difficulty is high, the existing embolectomy support 2 only can be fixed in size and cannot be adjusted in angle, and different blood vessel sizes can be adapted by configuring various different models.
The technical scheme of the invention overcomes the defect, adjusts the angle of the thrombus taking support 2 by configuring the bending degree adjusting device 4, thereby adapting to the bending trend of the blood vessel, meeting the requirement of taking out thrombus of the blood vessel with different bending degrees, improving the thrombus taking efficiency and reducing the damage to the blood vessel.
In addition, the proximal end of the main body of the handle 3 is connected with a catheter tail connecting wire 5.
In a preferred embodiment, as shown in fig. 2-3, the catheter body 1 comprises a first catheter 11 and a second catheter 12, and the embolectomy stent 2 provides a flexible connection between the first catheter 11 and the second catheter 12.
In a preferred embodiment, the curvature adjusting device 4 includes at least one pair of curvature adjusting units, and the first angle adjusting unit 41 and the second angle adjusting unit 42 are respectively disposed on both sides of the handle 3.
On the basis of the above technical solution, further, as shown in fig. 4, each camber adjusting unit includes:
the connecting lead passes through the second guide pipe 12 and the embolectomy bracket 2, and one end of the connecting lead is connected to one side of the inner side wall of the first guide pipe 11;
the pulley assembly is arranged on the handle 3 and connected with the other end of the connecting wire, and the pulley assembly is used for controllably releasing or contracting the connecting wire.
On the basis of the above technical solution, further, the pulley assembly includes:
a pulley body;
the rotary switch is matched with the pulley body to control the rotation of the pulley body;
and the elastic piece is arranged on the inner side of the pulley body and is connected with the connecting lead so as to control the expansion of the connecting lead when the pulley body is controlled by the rotary switch or provide corresponding expansion and contraction activities when the connecting lead is externally pulled and released.
Referring specifically to fig. 5-6: the first sheave assembly 412 includes:
a first pulley body 4121;
the first rotary switch 4122 is matched with the pulley body to control the rotation of the first pulley body 4121;
the elastic element one 4123 is configured at the inner side of the pulley body one 4121 and connected with the connecting lead one 411 to control the connecting lead one 411 to stretch when the rotary switch one 4122 controls the pulley body one 4121 or provide corresponding stretching movement when the connecting lead one 411 is pulled and released externally.
Wherein, the second angle adjusting unit 42 includes:
a second connecting wire 421 which passes through the second conduit 12 and the embolectomy bracket 2, and two ends of the second connecting wire are connected to two sides of the inner side wall of the second conduit 12;
a second pulley component 422, which is configured on the handle 3 and is connected with the other two ends of the connecting lead, and the second pulley component 422;
in a further aspect, the second pulley assembly 422 includes:
a second pulley body 4221;
a second rotary switch 4222 which is matched with the pulley body to control the rotation of the second pulley body 4221;
the second elastic element 4223 is disposed inside the second pulley body 4221 and connected to the second connection lead 421, so as to control the second connection lead 421 to extend or contract when the second rotary switch 4222 controls the second pulley body 4221, or provide corresponding extending or contracting activities when the second connection lead 421 is pulled or released externally.
It should be noted that the first angle adjustment unit 41 and the second angle adjustment unit 42 have the same structure.
In the above technical solution, the rotary switch includes two states of locking and unlocking, specifically, referring to fig. 7, a corresponding buckle is provided at a joint of the mixing wheel body and the rotary switch, the rotary switch is locked when pressed downward, and the rotary switch is unlocked when pulled upward and disengaged from the buckle.
It should be noted that the elastic member may be selected from a spring or a spring plate.
In a preferred embodiment, each stent 2 is made up of a plurality of wires in a predetermined configuration.
In a preferred embodiment, a plurality of wires form a disk structure with a wide middle and two contracted ends.
In a preferred embodiment, as shown in FIG. 4, the thrombectomy support 2 includes three tray structures, tray structure one 21, tray structure two 22 and tray structure three 23, with a predetermined spacing between adjacent tray structures.
In a preferred embodiment, the thrombectomy support 2 is a unitary structure.
In a preferred embodiment, a developer ring 6 is disposed between the disk structures.
In the following description of an embodiment, as shown in fig. 9 to 11, the angle adjusting device includes a first angle adjusting unit 41 and a second angle adjusting unit 42;
wherein the first angle adjustment unit 41 comprises
The connecting lead wire I411 passes through the second guide pipe 12 and the embolectomy bracket 2, and one end of the connecting lead wire is connected to one side of the inner side wall of the first guide pipe 11;
a pulley assembly one 412 disposed on the handle 3 and connected to the other end of the connecting wire, the pulley assembly one 412;
further, pulley assembly one 412 includes:
a first pulley body 4121;
the first rotary switch 4122 is matched with the pulley body to control the rotation of the first pulley body 4121;
the elastic element one 4123 is configured at the inner side of the pulley body one 4121 and connected with the connecting lead one 411 to control the connecting lead one 411 to stretch when the rotary switch one 4122 controls the pulley body one 4121 or provide corresponding stretching movement when the connecting lead one 411 is pulled and released externally.
Wherein, the second angle adjusting unit 42 includes:
a second connecting wire 421 which passes through the second conduit 12 and the embolectomy bracket 2, and two ends of the second connecting wire are connected to two sides of the inner side wall of the second conduit 12;
a second pulley component 422, which is configured on the handle 3 and is connected with the other two ends of the connecting lead, and the second pulley component 422;
in a further aspect, the second pulley assembly 422 includes:
a second pulley body 4221;
a second rotary switch 4222 which is matched with the pulley body to control the rotation of the second pulley body 4221;
the second elastic element 4223 is disposed inside the second pulley body 4221 and connected to the second connection lead 421, so as to control the second connection lead 421 to extend or contract when the second rotary switch 4222 controls the second pulley body 4221, or provide corresponding extending or contracting activities when the second connection lead 421 is pulled or released externally.
When the angle adjusting unit I41 adjusts the angle of the bolt taking bracket 2, the rotating switch I4122 is matched with the pulley body I4121, the pulley body I4121 is rotated, the connecting lead I411 is in a rotating and contracting state, the catheter body 1 bends towards the outer side of the pulley assembly I412 due to pulling of the connecting lead I411, so that the angle adjustment of the bolt taking bracket 2 is realized, meanwhile, in the adjusting process of the angle adjusting unit I, the angle adjusting unit II 42 on the other side needs to be matched with the angle adjusting operation of the angle adjusting unit I41, specifically, in the process that the connecting lead I411 pulls the catheter body 1, the catheter body 1 bends towards the outer side direction of the pulley assembly I412, so that the connecting lead II 421 needs to be matched with corresponding extension to enable the whole angle adjusting device to complete adjustment, in the angle adjusting unit II 42, the elastic piece II 4223 is connected with the connecting lead II 421, therefore, when the connecting lead is forcibly pulled out, the second elastic element 4223 is in a stretching state, when the first angle adjusting unit 41 is in a releasing state, the catheter body 1 restores to the initial position, the second connecting lead 421 is in a releasing state, and at the moment, the second elastic element 4223 restores to the initial state due to the fact that the acting force of the second connecting lead 421 disappears, and therefore the second connecting lead 421 is automatically pulled back to restore to the initial state.
If the angle unit two performs angle adjustment, the angle unit one correspondingly matches the adjustment, and the implementation principle is consistent with the above description, which is not repeated herein.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention.
Claims (10)
1. An embolectomy stent catheter, comprising:
a catheter body:
the thrombus taking bracket is arranged at the position, close to the end part, of the catheter body;
a handle connected to the other end of the catheter body;
and the bending degree adjusting device is connected between the handle and the catheter body and is used for adjusting the bending degree of the catheter body so as to adjust the angle of the thrombus taking support.
2. The thrombectomy stent catheter of claim 1, wherein the catheter body comprises a first catheter and a second catheter, and the thrombectomy stent provides a flexible connection between the first catheter and the second catheter.
3. The embolectomy stent catheter of claim 2, wherein the camber adjustment device comprises at least one pair of camber adjustment units, each disposed on either side of the handle.
4. The embolectomy stent catheter of claim 3, wherein each of the camber adjustment units comprises:
the connecting lead passes through the second guide pipe and the embolectomy bracket, and one end of the connecting lead is connected to one side of one inner side wall of the guide pipe;
and the pulley assembly is arranged on the handle and is connected with the other end of the connecting lead, and the pulley assembly is used for controllably releasing or contracting the connecting lead.
5. The embolectomy stent catheter of claim 4, wherein the pulley assembly comprises:
a pulley body;
the rotary switch is matched with the pulley body to control the rotation of the pulley body;
and the elastic piece is configured on the inner side of the pulley body, is connected with the connecting wire and is used for controlling the expansion of the connecting wire when the rotary switch controls the pulley body or providing corresponding expansion and contraction activities when the connecting wire is externally pulled and released.
6. The embolectomy stent catheter of claim 1, wherein each of the embolectomy stents is composed of a plurality of wires in a predetermined shape.
7. The thrombectomy stent catheter according to claim 6, wherein a plurality of wires form a disc-shaped structure with a wide middle part and two contracted ends.
8. The embolectomy stent catheter of claim 7 wherein the embolectomy stent comprises three disc structures, with a predetermined spacing between adjacent disc structures.
9. The embolectomy stent catheter of any of claims 1-8, wherein the embolectomy stent is a unitary structure.
10. The embolectomy stent catheter of any of claim 8 wherein a visualization ring is disposed between the disk structures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110778993.5A CN113633446B (en) | 2021-07-09 | 2021-07-09 | Thrombus-taking bracket catheter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110778993.5A CN113633446B (en) | 2021-07-09 | 2021-07-09 | Thrombus-taking bracket catheter |
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| CN113633446A true CN113633446A (en) | 2021-11-12 |
| CN113633446B CN113633446B (en) | 2022-08-02 |
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| CN202110778993.5A Active CN113633446B (en) | 2021-07-09 | 2021-07-09 | Thrombus-taking bracket catheter |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100087850A1 (en) * | 2008-10-03 | 2010-04-08 | Nasser Razack | Mechanical Embolectomy Device and Method |
| CN105476689A (en) * | 2015-12-28 | 2016-04-13 | 威海维心医疗设备有限公司 | Thrombus extraction support device |
| CN107126245A (en) * | 2017-04-30 | 2017-09-05 | 沈阳新智源医疗用品有限公司 | A kind of taking thrombus device and its application method |
| CN107233122A (en) * | 2017-05-08 | 2017-10-10 | 上海形状记忆合金材料有限公司 | A kind of polydisc takes bolt device and its conveying device, carrying method |
| CN206852642U (en) * | 2016-12-19 | 2018-01-09 | 广州美诺微创医疗器械有限公司 | A kind of device for taking cerebrovascular thrombus |
| CN110292464A (en) * | 2018-03-22 | 2019-10-01 | 杭州启明医疗器械股份有限公司 | Adjustable bending intervenes valve delivery system |
| CN210144708U (en) * | 2019-03-11 | 2020-03-17 | 恩脉（上海）医疗科技有限公司 | Thrombus taking device |
| CN113693676A (en) * | 2021-08-24 | 2021-11-26 | 北京泰杰伟业科技有限公司 | Adjustable bolt taking device |
-
2021
- 2021-07-09 CN CN202110778993.5A patent/CN113633446B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100087850A1 (en) * | 2008-10-03 | 2010-04-08 | Nasser Razack | Mechanical Embolectomy Device and Method |
| CN105476689A (en) * | 2015-12-28 | 2016-04-13 | 威海维心医疗设备有限公司 | Thrombus extraction support device |
| CN206852642U (en) * | 2016-12-19 | 2018-01-09 | 广州美诺微创医疗器械有限公司 | A kind of device for taking cerebrovascular thrombus |
| CN107126245A (en) * | 2017-04-30 | 2017-09-05 | 沈阳新智源医疗用品有限公司 | A kind of taking thrombus device and its application method |
| CN107233122A (en) * | 2017-05-08 | 2017-10-10 | 上海形状记忆合金材料有限公司 | A kind of polydisc takes bolt device and its conveying device, carrying method |
| CN110292464A (en) * | 2018-03-22 | 2019-10-01 | 杭州启明医疗器械股份有限公司 | Adjustable bending intervenes valve delivery system |
| CN210144708U (en) * | 2019-03-11 | 2020-03-17 | 恩脉（上海）医疗科技有限公司 | Thrombus taking device |
| CN113693676A (en) * | 2021-08-24 | 2021-11-26 | 北京泰杰伟业科技有限公司 | Adjustable bolt taking device |
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| CN113633446B (en) | 2022-08-02 |
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