CN112120759A - Medicine injection support and medicine injection thrombolysis system comprising same - Google Patents
Medicine injection support and medicine injection thrombolysis system comprising same Download PDFInfo
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- CN112120759A CN112120759A CN202011089653.3A CN202011089653A CN112120759A CN 112120759 A CN112120759 A CN 112120759A CN 202011089653 A CN202011089653 A CN 202011089653A CN 112120759 A CN112120759 A CN 112120759A
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- 238000002347 injection Methods 0.000 title claims abstract description 128
- 239000007924 injection Substances 0.000 title claims abstract description 128
- 230000002537 thrombolytic effect Effects 0.000 title claims abstract description 38
- 229940079593 drug Drugs 0.000 title claims description 79
- 208000007536 Thrombosis Diseases 0.000 claims abstract description 63
- 238000012377 drug delivery Methods 0.000 claims abstract description 50
- 239000003146 anticoagulant agent Substances 0.000 claims description 10
- 238000011084 recovery Methods 0.000 claims description 9
- 238000001802 infusion Methods 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 4
- 239000002861 polymer material Substances 0.000 claims description 4
- 230000002349 favourable effect Effects 0.000 abstract description 2
- 239000003527 fibrinolytic agent Substances 0.000 description 13
- 210000001147 pulmonary artery Anatomy 0.000 description 7
- 208000010378 Pulmonary Embolism Diseases 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 238000002560 therapeutic procedure Methods 0.000 description 4
- 210000004204 blood vessel Anatomy 0.000 description 3
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- 239000003795 chemical substances by application Substances 0.000 description 2
- 229960000103 thrombolytic agent Drugs 0.000 description 2
- 230000002792 vascular Effects 0.000 description 2
- 238000010146 3D printing Methods 0.000 description 1
- 208000024172 Cardiovascular disease Diseases 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
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
- A61B17/221—Gripping devices in the form of loops or baskets for gripping calculi or similar types of obstructions
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
- A61B2017/22082—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for after introduction of a substance
- A61B2017/22084—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for after introduction of a substance stone- or thrombus-dissolving
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
- A61B17/221—Gripping devices in the form of loops or baskets for gripping calculi or similar types of obstructions
- A61B2017/2215—Gripping devices in the form of loops or baskets for gripping calculi or similar types of obstructions having an open distal end
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- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
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- General Health & Medical Sciences (AREA)
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- Veterinary Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention relates to the technical field of medical instruments, and discloses a medicine injection bracket and a medicine injection thrombolysis system comprising the same. This injection support includes: the drug delivery pipe, the stent body capable of elastically expanding in the radial direction and the thrombus filter screen are arranged on the stent body; the bracket body is fixedly arranged on the medicine conveying pipe and comprises a plurality of elastic pipes forming a bracket structure, the elastic pipes are communicated with the medicine conveying pipe, and a plurality of medicine injection holes are formed in the elastic pipes; the thrombus filter screen is fixedly arranged on the drug delivery pipe and is positioned at the far end of the bracket body. But this embodiment is through the injection support of releasing elastic expansion in the thrombus position for the back is spouted and is annotated thrombolysis medicament in injection support embedding thrombus, thereby makes thrombolysis medicament direct accurate, large area ground act on the thrombus, thereby can improve thrombolysis efficiency and be favorable to practicing thrift thrombolysis medicament and treatment time.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a medicine injection bracket and a medicine injection thrombolysis system comprising the same.
Background
Pulmonary embolism is a common cardiovascular system disease, is usually caused by thrombus drop due to deep venous thrombosis of lower limbs, has high fatality rate, and seriously harms the health and the life quality of patients. The existing treatment means for pulmonary embolism mainly comprise: medicinal anticoagulation therapy, systemic thrombolysis therapy, interventional local perfusion thrombolysis therapy and traditional pulmonary embolism operation therapy. With the development of intravascular interventions, the interventional treatment of pulmonary embolism has become an effective and important treatment. However, the conventional catheter thrombolysis method requires the thrombolysis catheter to be placed in the body for a long time, and requires the use of a large amount of thrombolysis agent, which is inefficient in thrombolysis and wastes a large amount of thrombolysis agent.
Disclosure of Invention
The invention aims to provide a drug injection bracket and a drug injection thrombolysis system comprising the same, wherein the drug injection bracket capable of elastically expanding is released at the position of a thrombus, so that a thrombolysis medicament is injected after the drug injection bracket is embedded into the thrombus, and the thrombolysis medicament directly acts on the thrombus accurately and in a large area, thereby improving the thrombolysis efficiency and being beneficial to saving the thrombolysis medicament and treatment time.
In order to solve the above technical problem, an embodiment of the present invention provides a drug injection stent, including: the drug delivery pipe, the stent body capable of elastically expanding in the radial direction and the thrombus filter screen are arranged on the stent body;
the bracket body is fixedly arranged on the medicine conveying pipe and comprises a plurality of elastic pipes forming a bracket structure, the elastic pipes are communicated with the medicine conveying pipe, and a plurality of medicine injection holes are formed in the elastic pipes;
the thrombus filter screen is fixedly arranged on the drug delivery pipe and is positioned at the far end of the bracket body.
Embodiments of the present invention also provide a drug injection thrombolytic system, comprising: a delivery assembly, an outer drug infusion assembly and a drug infusion stent as described above;
the medicine delivery assembly comprises a sheath tube and a delivery handle, and the sheath tube is fixedly connected with the delivery handle;
the medicine injection bracket is accommodated at the inner end of the sheath tube;
the outer drug injection assembly comprises a drug injection joint and a syringe, a drug delivery pipe of the drug injection support penetrates through the drug delivery assembly, the outer end of the drug delivery pipe is connected with the drug injection joint, and the drug injection joint is connected with the syringe.
The invention provides a medicine injection bracket and a medicine injection thrombolysis system comprising the same. This medicine injection dissolves bolt system includes transport assembly and outer medicine injection subassembly, and transport assembly is including the transport handle that is used for accomodating the sheath pipe and the sheath union coupling of injection support, and outer medicine injection subassembly includes injection joint and syringe, and the injection pipe wears to locate in the transport assembly and with injection articulate, and injection joint is connected with the syringe. Therefore, according to the embodiment of the invention, the drug injection stent can be loaded in the sheath, the drug injection stent is conveyed to the position of the thrombus by the conveying handle, and then the sheath is withdrawn by the conveying handle, so that the drug injection stent is embedded into the thrombus after self-expansion and expansion at the position of the thrombus, and then the thrombolytic drug is injected into the drug injection stent by the injector, so that the thrombolytic drug is accurately injected onto the thrombus by the drug injection stent, the thrombolytic drug acts on the thrombus in a large area, the thrombolytic efficiency is improved, and the dosage of the thrombolytic drug and the treatment time are saved.
As an embodiment, the stent body is a stent unit; at least one end of each elastic tube of the bracket body is communicated with the medicine conveying tube; or
The support body comprises a plurality of support units, and the support units are arranged in parallel or in a staggered mode along the axial direction of the medicine conveying pipe.
As an embodiment, the medicine injection holes are uniformly distributed on the elastic tube;
wherein, the medicine injection hole at each opening position is a single hole and/or a double hole which is symmetrically distributed.
As an embodiment, a side hole is formed in the position, located on the bracket body, of the medicine conveying pipe.
As an embodiment, a developing part for indicating the position of the stent body is arranged on the drug delivery pipe at the position of the stent body.
In one embodiment, the elastic tube extends spirally along the axial direction of the drug delivery tube.
As an embodiment, the stent body is woven from an elastic metal tube or an elastic polymer material tube.
In one embodiment, the sheath is screwed with the delivery handle, and the sheath is an elastically contractible sheath; the diameter of the sheath tube when the sheath tube is naturally opened is larger than the diameter of the inlet of the conveying handle.
As an embodiment, the system further comprises: a recovery handle;
the recovery handle is connected with the conveying handle in a sliding mode, the recovery handle is fixedly connected with the medicine injection joint, and the medicine conveying pipe penetrates through the recovery handle.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, it is understood that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic view of a drug delivery device according to an embodiment of the present disclosure;
FIG. 2 is a partially enlarged structural view of a stent body of the drug injection stent provided in an embodiment;
FIG. 3 is a schematic view illustrating a drug-filling state of a drug-filling support according to an embodiment;
FIG. 4 is a schematic structural view of a stent body according to yet another embodiment;
FIG. 5 is a schematic structural view of a stent body according to still another embodiment;
fig. 6 is a schematic perspective view illustrating a thrombolytic drug-injecting system according to an embodiment;
fig. 7 is a schematic structural diagram of a thrombolytic drug-injecting system according to an embodiment.
In the figure: a drug injection stent 1, a drug delivery tube 10, a side hole 100, a stent body 11, an elastic tube 110, a drug injection hole 111, a thrombus filter 12, a tip 13, a developing part 14, a sheath tube 20, a delivery handle 21, a recovery handle 3, a drug injection joint 41 and an injector 42.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, it will be appreciated by those of ordinary skill in the art that numerous technical details are set forth in order to provide a better understanding of the present invention in its various embodiments. However, the technical solution claimed in the present invention can be implemented without these technical details and various changes and modifications based on the following embodiments.
The embodiment of the application provides a medicine injection stent, which is suitable for pulmonary artery thrombus removal treatment, but is not limited to the pulmonary artery thrombus removal treatment, and the medicine injection stent of the embodiment can also be applied to thrombus removal treatment of blood vessels at other parts of a human body. As shown in fig. 1 to 3, the medication injection holder 1 includes: a drug delivery tube 10, a stent body 11 which can be radially and elastically expanded and a thrombus filter 12. The support body 11 sets firmly on the medicine conveying pipe 10, and the support body 11 includes a plurality of elastic tubes 110 that form supporting structure, and elastic tubes 110 and medicine conveying pipe 10 intercommunication, and seted up a plurality of injection holes 111 on the elastic tubes 110, and thrombus filter screen 12 sets firmly on medicine conveying pipe 10 and is located the distal end of support body 11.
The injection support of this embodiment is including setting up the support body on the medicine conveying pipe, and the support body is become supporting structure by many elastic tubes, has seted up the injection hole on the elastic tube, elastic tube and medicine conveying pipe intercommunication. The inner of the bracket body is also provided with a thrombus filter screen. The drug injection stent of the present embodiment can be used in conjunction with a delivery assembly and an outer drug injection assembly. Before using, the injection support can be accomodate in conveying component's sheath pipe, and the medicine conveying pipe can pass sheath pipe, delivery handle to communicate with the syringe through injection component. When the injection stent is used, the delivery handle can be operated to deliver the injection stent loaded in the sheath tube to the position of thrombus, then the sheath tube is retracted to release the injection stent, the injection stent is embedded into the thrombus after self-expansion and expansion, the thrombolytic drug is injected by the injector, and the thrombolytic drug reaches the elastic tube of the injection stent through the drug delivery tube and is injected into the thrombus through the drug injection hole on the elastic tube. Therefore, the thrombus dissolving medicament can accurately act on thrombus in a large area, so that the thrombus dissolving efficiency is improved, the medicament dosage and the treatment time are saved, and the thrombus filter screen can effectively prevent small thrombus from escaping to a far-end blood vessel.
Alternatively, in this embodiment, the stent body 11 may be a stent unit, and at least one end of each elastic tube 110 of the stent body 11 is communicated with the drug delivery tube 10. Specifically, as shown in fig. 1, the main body of the stent unit is approximately cylindrical after being expanded and extends around and along the axial direction of the drug delivery tube 10, but the stent unit is not limited thereto, and may have other shapes suitable for processing and drug injection.
Alternatively, in this embodiment, the stent body 11 may be formed by weaving an elastic metal tube or an elastic polymer material tube. However, the stent body 11 may be prepared by a 3D printing technique. Wherein, the openings at the two ends of the elastic tube can be communicated with the drug delivery tube or the end of the elastic tube only far away from the thrombus filter screen is communicated with the drug delivery tube. In this embodiment, as shown in fig. 3, the end opening of the elastic tube 110 can directly communicate with the lumen of the drug delivery tube 10. However, without limitation, the flexible tube may communicate with the drug delivery tube in any other suitable manner.
Further, in the present embodiment, the elastic tube 110 extends spirally along the axial direction of the drug delivery tube 10, thereby facilitating not only the formation of a stable stent structure, but also the rapid and smooth flow of the drug in the elastic tube. However, not limited thereto, in some examples, the holder body 11 may include: an elastic tube extending along the axial direction of the drug delivery tube 10 and an elastic tube surrounding the drug delivery tube 10, wherein the drug injection hole 111 may be opened on the elastic tube extending along the axial direction, and the part of the elastic tube surrounding the drug delivery tube may not be opened with the drug injection hole. Optionally, in this embodiment, the drug injection holes are uniformly distributed on the elastic tube, wherein the drug injection hole at each opening position is a single hole and/or symmetrically distributed double holes. For example, as shown in fig. 3, a plurality of positions on a single elastic tube 110 are uniformly provided with a drug injection hole 111, and each position is provided with one drug injection hole 111. However, in some examples, two drug injection holes may be symmetrically formed at each opening position of the elastic tube 110, or single-hole and double-hole drug injection holes may be alternately distributed on the elastic tube. When the drug injection holes are single holes, all the drug injection holes can be arranged on the same side of the elastic tube, or different drug injection holes are distributed on different sides of the elastic tube, which is not limited specifically herein. When two medicine injection holes are symmetrically formed in the same position on the elastic tube 110, the medicine injection holes can be prevented from being attached to the vessel wall to influence the uniformity of medicine injection. The specific structure of the stent body is not limited in this embodiment as long as the thrombolytic agent can act on a thrombus in a large area.
On the basis of the above embodiment, in some examples, the stent body 11 may further include a plurality of stent units, and the stent units are arranged side by side along the axial direction of the drug delivery tube 10, or arranged staggered along the axial direction of the drug delivery tube 10. For example, as shown in fig. 4, the rack body 11 may include two rack units, and the two rack units are disposed in parallel. As shown in fig. 5, the stent body 11 may include three stent units, and the three stent units are staggered along the axial direction of the drug delivery tube. Through setting up a plurality of support units, can show the flow path who shortens medicament in the elastic tube to be favorable to improving the flow velocity of medicament in the injection support.
Alternatively, in the present embodiment, the thrombus filter 12 has a disk shape, and the thrombus filter 12 may be woven from an elastic metal tube or a medical polymer material tubule. The thrombus filter screen 12 can adapt to the shape and the size of a blood vessel after self-expanding and expanding, and meshes of the thrombus filter screen 12 can be fine rhombic and approximately rhombic meshes, so that thrombus escaping when thrombolytic medicaments are thrombolytic can be effectively filtered and intercepted. It should be understood that the present embodiment is not particularly limited to the shape and size of the mesh of the thrombus filter.
Optionally, in this embodiment, the drug injection stent 1 may further comprise a tip 13 disposed at the inner end of the drug delivery tube 10.
Optionally, in this embodiment, a side hole 100 is further opened on the drug delivery tube 10 at the position of the stent body 11. The side hole 100 is a through hole and is communicated with the lumen of the drug delivery tube 10, and the thrombolytic drug can be injected in the axial region of the thrombus through the side hole 100 of the drug delivery tube 10.
Optionally, in the present embodiment, as shown in fig. 1, a developing portion 14 for indicating the position of the stent body is further provided on the drug delivery tube 10 at the position of the stent body. By way of example and not limitation, the visualization portion 14 may be a ring-shaped structure, so as to facilitate the determination of whether the stent body accurately reaches the thrombus position under an X-ray machine.
The injection support of this embodiment can be in thrombus position department by automatic expansion after the release and adapt to vascular shape and size, dissolve accurate spouting such as the side opening of the injection hole of support body and medicine conveying pipe on the thrombus of thrombus medicament, thereby direct large tracts of land is used on the thrombus, can use the effective thrombolysis of medicament of less dosage and clear up the thrombus in short time, thereby reduces operation time and avoids the heavy bleeding risk.
The embodiment of the application also provides a drug injection thrombolysis system which can be used for pulmonary artery embolism intervention thrombolysis treatment to dredge pulmonary artery blood vessels and restore smooth blood flow. The system comprises: the conveying assembly, the outer drug injection assembly and the drug injection support 1 as described in the previous embodiment are characterized in that the drug delivery assembly comprises a sheath tube 20 and a conveying handle 21, the sheath tube 20 is fixedly connected with the conveying handle 21, the drug injection support 1 can be accommodated in the inner end of the sheath tube 20, the outer drug injection assembly comprises a drug injection joint 41 and a syringe 42, the drug delivery tube 10 of the drug injection support 1 is arranged in the conveying assembly in a penetrating manner, the outer end of the drug delivery tube 10 is connected with the drug injection joint 41, and the drug injection joint is connected with the syringe 42.
Optionally, in this embodiment, the sheath 20 is screwed to the delivery handle 21, and the sheath 20 is an elastically retractable sheath 21, and the diameter of the sheath when the sheath is naturally opened is larger than the diameter of the inlet of the delivery handle. When the drug injection stent 1 is loaded, the sheath 20 and the delivery handle 21 can be separated, and the diameter of the sheath in a natural state is larger, so that the drug injection stent 1 can be conveniently loaded. After the injection stent 1 is loaded, the sheath 20 is screwed into the delivery handle 21, and since the diameter of the inlet of the delivery handle 21 is small, the diameter of the sheath gradually becomes smaller as the length of the sheath screwed into the delivery handle 21 increases, and the diameter of the end of the sheath 20 accommodating the injection stent 1 becomes smaller accordingly. As shown in FIG. 5, the loading position of the drug-injection stent 1 in the sheath 20 is a black section of the inner end of the sheath. When the sheath tube 21 is used, the sheath tube 20 is driven to slide in the axial direction through the conveying handle 21, after the medicine injection stent 1 reaches the thrombus position, part of the sheath tube section is screwed out of the conveying sheath tube 21, at the moment, the caliber of the sheath tube 20 is automatically thickened, then the conveying handle 21 can be pulled back, and the sheath tube 20 is retracted along with the conveying handle 21 to release the medicine injection stent 1 in the sheath tube. The thickness of this embodiment through carrying handle control sheath pipe bore for the loading and the release of injection support 1 are more convenient. However, in some examples, sheath 20 may be formed as a single piece with delivery handle 21.
Optionally, the system may further include: retrieve handle 3, retrieve handle 3 and delivery handle 21 sliding connection, retrieve handle 3 and injection joint 41 fixed connection, the infusion pipe 10 wears to locate and retrieves handle 3. The drug delivery tube 10 establishes a drug delivery path with the syringe 42 through the drug injection fitting 41. The structure of the drug injection connector is not limited in this embodiment, and any connector structure capable of connecting the drug delivery tube and the syringe is within the scope of the present invention.
With reference to the attached drawings, the application method and the steps of the thrombolytic drug injection system of the embodiment of the application are as follows:
in the minimally invasive interventional operation treatment for removing the thrombus by the pulmonary embolism, an instrument interventional channel is established in the femoral vein vessel through a puncture needle, a guide wire, a catheter and a puncture sheath. The catheter is introduced into the central pulmonary artery by the intravascular interventional channel technology, and the vascular part of the pulmonary artery thrombus is determined by selective main pulmonary artery radiography. The replacement angiographic catheter is a guide wire (which is introduced and then withdrawn from the catheter). The sheath 20 with the drug-filled stent 1 of the present invention is transported along the guide wire to the position of the pulmonary artery thrombus, and the position of the stent body 11 is confirmed by the visualization performance of the stent body and the visualization part on the basis of the X-ray machine. The delivery handle 21 is operable to adjust the position of the stent body 11 so that it completely covers the thrombus. After the position of the drug-filled stent is determined, the retrieval handle 3 is held and the delivery handle 21 is retracted so that the drug-filled stent 1 is expanded and deployed after being released. Inject the thrombolytic drug into the drug injection joint 41 through the syringe, because the drug injection joint 41 is linked together with the drug delivery tube and the drug injection support 1, therefore, the thrombolytic drug reaching the drug injection support 1 can be accurately injected from the drug injection hole of the drug injection support 1 and the side hole of the drug delivery tube and act on the thrombus, the thrombolytic drug can promote fibrinolysis to dissolve the thrombus, the thrombolytic process may have the massive thrombus to drop due to the effect of blood flow and thrombolytic agent, at this moment, the thrombus filter screen can filter and intercept the massive thrombus and prevent the dropped thrombus from escaping. After thrombolysis is completed, the drug injection stent 1 and the thrombus filter screen 12 are retracted into the sheath tube 20 together by holding the delivery handle and pulling the retraction handle, and then are withdrawn out of the body.
The thrombolysis injection system of this embodiment can be with the accurate injection of thrombolysis medicament on the thrombus to direct large tracts of land is acted on the thrombus, can use the effective thrombolysis of medicament of less dose and clearance thrombus in short time, thereby reduces the operation time and avoids the heavy bleeding risk.
Although only the use of a drug delivery stent in conjunction with a syringe is described herein, it should be understood that the drug delivery stent disclosed in the embodiments of the present application may also be used in conjunction with other suitable medicament injection devices.
It will be understood by those of ordinary skill in the art that the foregoing embodiments are specific examples for carrying out the invention, and that various changes in form and details may be made therein without departing from the spirit and scope of the invention in practice.
Claims (10)
1. A medication injection stand, comprising: the drug delivery pipe, the stent body capable of elastically expanding in the radial direction and the thrombus filter screen are arranged on the stent body;
the bracket body is fixedly arranged on the medicine conveying pipe and comprises a plurality of elastic pipes forming a bracket structure, the elastic pipes are communicated with the medicine conveying pipe, and a plurality of medicine injection holes are formed in the elastic pipes;
the thrombus filter screen is fixedly arranged on the drug delivery pipe and is positioned at the far end of the bracket body.
2. The medication injection stand of claim 1, wherein said stand body is a stand unit; at least one end of each elastic tube of the bracket body is communicated with the medicine conveying tube; or
The support body comprises a plurality of support units, and the support units are arranged in parallel or in a staggered mode along the axial direction of the medicine conveying pipe.
3. The drug delivery stent of claim 1, wherein the drug delivery holes are evenly distributed on the elastic tube;
wherein, the medicine injection hole at each opening position is a single hole and/or a double hole which is symmetrically distributed.
4. The drug injection support of claim 1, wherein the drug delivery tube is provided with a side hole at the position of the support body.
5. The drug injection support according to claim 1, wherein a developing portion for indicating the position of the support body is provided on the drug delivery tube at the position of the support body.
6. The medication injection stent of claim 1, wherein said resilient tube extends helically along an axial direction of said medication delivery tube.
7. The drug-injection stent of claim 1, wherein the stent body is woven from a tube of resilient metal or resilient polymer material.
8. A drug infusion thrombolytic system, comprising: a delivery assembly, an over-infusion assembly and an infusion stent according to any one of claims 1 to 7;
the medicine delivery assembly comprises a sheath tube and a delivery handle, and the sheath tube is fixedly connected with the delivery handle;
the medicine injection bracket is accommodated at the inner end of the sheath tube;
the outer drug injection assembly comprises a drug injection joint and a syringe, a drug delivery pipe of the drug injection support penetrates through the drug delivery assembly, the outer end of the drug delivery pipe is connected with the drug injection joint, and the drug injection joint is connected with the syringe.
9. The drug infusion thrombolytic system of claim 8, wherein the sheath is threadedly connected to the delivery handle and the sheath is a resiliently collapsible sheath; the diameter of the sheath tube when the sheath tube is naturally opened is larger than the diameter of the inlet of the conveying handle.
10. The drug infusion thrombolytic system of claim 8, further comprising: a recovery handle;
the recovery handle is connected with the conveying handle in a sliding mode, the recovery handle is fixedly connected with the medicine injection joint, and the medicine conveying pipe penetrates through the recovery handle.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011089653.3A CN112120759A (en) | 2020-10-13 | 2020-10-13 | Medicine injection support and medicine injection thrombolysis system comprising same |
| PCT/CN2020/142279 WO2022077781A1 (en) | 2020-10-13 | 2020-12-31 | Drug injection stent and drug injection thrombolytic system comprising same |
| US18/299,182 US11925544B2 (en) | 2020-10-13 | 2023-04-12 | Pulmonary artery stent |
| US18/424,717 US20240207035A1 (en) | 2020-10-13 | 2024-01-26 | Pulmonary artery stent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011089653.3A CN112120759A (en) | 2020-10-13 | 2020-10-13 | Medicine injection support and medicine injection thrombolysis system comprising same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112120759A true CN112120759A (en) | 2020-12-25 |
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| CN202011089653.3A Pending CN112120759A (en) | 2020-10-13 | 2020-10-13 | Medicine injection support and medicine injection thrombolysis system comprising same |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2022077781A1 (en) * | 2020-10-13 | 2022-04-21 | 上海腾复医疗科技有限公司 | Drug injection stent and drug injection thrombolytic system comprising same |
| CN114391917A (en) * | 2022-01-07 | 2022-04-26 | 无锡天广泰医疗科技有限公司 | Variable-diameter thrombus removal device and use method thereof |
| CN114391921A (en) * | 2022-01-07 | 2022-04-26 | 东莞天天向上医疗科技有限公司 | Multifunctional thrombus treatment device and use method thereof |
| WO2023240937A1 (en) * | 2022-06-14 | 2023-12-21 | 上海腾复医疗科技有限公司 | Multifunctional thrombus removal apparatus |
| US11925544B2 (en) | 2020-10-13 | 2024-03-12 | Shanghai Tendfo Medical Technologies Co. Ltd. | Pulmonary artery stent |
| CN117814871A (en) * | 2023-02-23 | 2024-04-05 | 萃杰医疗科技(南京)有限公司 | Directional thrombolysis catheter device |
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