CN111150460B - TIPS special puncture needle - Google Patents
TIPS special puncture needle Download PDFInfo
- Publication number
- CN111150460B CN111150460B CN202010055333.XA CN202010055333A CN111150460B CN 111150460 B CN111150460 B CN 111150460B CN 202010055333 A CN202010055333 A CN 202010055333A CN 111150460 B CN111150460 B CN 111150460B
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- main body
- tubular main
- push rod
- puncture
- face
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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
- A61B17/34—Trocars; Puncturing needles
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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
- A61B17/34—Trocars; Puncturing needles
- A61B17/3417—Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
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- Health & Medical Sciences (AREA)
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- Engineering & Computer Science (AREA)
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- Heart & Thoracic Surgery (AREA)
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention provides a special TIPS puncture needle, which comprises a puncture part and a slender tubular main body, wherein one end of the tubular main body is provided with a reference end face; the puncture part comprises a plurality of inner tubes, the adjacent inner tubes are sleeved end to end, the sleeve positioned on the outermost side is inserted into the tubular main body in a slidable manner, and one end of each inner tube, which is far away from the tubular main body, is provided with a telescopic end face; the control piece is arranged at one end, far away from the reference end face, of the tubular main body and used for driving the inner tube to slide along the axis of the tubular main body, so that the plurality of telescopic end faces and the reference end face are coplanar to form a feed puncture head, or the plurality of telescopic end faces are separated from each other to form a conical puncture head. The TIPS special puncture needle provided by the invention is convenient to puncture, the difficulty of puncture is convenient to reduce, and the risk of puncture is reduced.
Description
Technical Field
The invention relates to the field of medical equipment, in particular to a special puncture needle for TIPS.
Background
The TIPS operation is a transjugular intrahepatic portal vein stent shunt (transjugular intrahepatic portal stent portal shunt) which is an interventional radiology new therapy for treating portal hypertension and upper gastrointestinal hemorrhage. It utilizes the surgical shunting principle, and utilizes a series of interventional instruments to establish an artificial shunting channel between hepatic vein and portal vein in the liver parenchyma so as to reduce portal vein pressure and reduce or eliminate symptoms of esophageal varices, rupture bleeding, ascites and the like caused by portal vein high pressure.
The key point of the TIPS operation is the puncture from the hepatic vein to the portal vein, i.e. after the puncture needle punctures the hepatic vein, the puncture needle punctures the portal vein, and then a connecting channel is established. In order to protect the patient, the tip of the puncture needle used in TIPS surgery is relatively blunt. However, in the process of puncturing by using the existing puncture needle, the puncture can be completed only by using a large force, the puncturing difficulty is high, and the whole liver tissue is easy to puncture by increasing the puncturing force of a doctor in the process of puncturing part of patients, so that the patients are injured.
Disclosure of Invention
Aiming at the defects in the prior art, the TIPS special puncture needle provided by the invention is convenient for puncture, the difficulty of puncture is convenient to reduce, and the risk of puncture is reduced.
The invention provides a special TIPS puncture needle, which comprises:
an elongate tubular body, one end of the tubular body being provided with a datum end face;
the puncture part is positioned at one end, close to the reference end face, of the tubular main body, the puncture part comprises a plurality of inner tubes, the adjacent inner tubes are sleeved end to end, the sleeve pipe positioned on the outermost side is inserted into the tubular main body in a slidable mode, and one end, far away from the tubular main body, of each inner tube is provided with a telescopic end face;
the control piece is arranged at one end, far away from the reference end face, of the tubular main body and used for driving the inner tube to slide along the axis of the tubular main body, so that the plurality of telescopic end faces and the reference end face are coplanar to form a feed puncture head, or the plurality of telescopic end faces are separated from each other to form a conical puncture head.
Optionally, the control member comprises an elongate push rod and a detent; the slender push rod is sleeved in the tubular main body and connected with the innermost inner tube, and the braking piece is mounted on the tubular main body and used for locking or unlocking the slender push rod.
Optionally, the braking member comprises an adjusting nut, the outer peripheral surface of the elongated push rod is provided with threads, the adjusting nut is mounted at one end of the tubular body far away from the reference end surface and can rotate around the axis of the tubular body, and the adjusting nut is in threaded fit with the elongated push rod.
Optionally, the braking member includes an inner elastic sheet, an outer elastic sheet and a spring I, one end of the elongated push rod, which is far away from the reference end surface, extends along the axis of the tubular main body, a handle is formed through the tubular main body, the spring I is sleeved on the elongated push rod, and the two ends of the spring I are respectively connected with the handle and the tubular main body, the peripheral surface of the tubular main body is provided with a positioning through hole, one end of the inner elastic sheet is fixed on the peripheral surface of the slender push rod, the other opposite end expands to one side far away from the slender push rod and is pressed against the inner side wall of the tubular main body, the end of the inner spring plate which is pressed against the inner side wall of the tubular main body is provided with a positioning boss which can slide along the axial direction of the tubular main body into the positioning through hole to be clamped with the tubular main body, the outer elastic sheet is arranged on the tubular main body and covers the positioning through hole, and the middle part of the outer elastic sheet extends into the positioning through hole to form a convex point.
Optionally, the braking member includes a tail screw, an internal thread is provided on the inner side wall of the tubular body, the tail screw is inserted into the tubular body along one end far away from the reference end face and connected with the elongated push rod, and can rotate on the elongated push rod around the axis of the tubular body, and the tail screw is in threaded fit with the tubular body.
Optionally, a locking structure for preventing the inner pipe at the outer side from sliding before the inner pipe at the inner side is extended to a set length is arranged between two adjacent inner pipes.
Optionally, the locking structure includes a tongue, a spring II and a plurality of mandrels, the tongue is mounted on the end face of one end of the inner tube far from the telescopic end face, and the tongue can slide along the radial direction of the inner tube, the tongue is provided with a wedge face, two ends of the spring II are respectively connected with the inner tube and the tongue for driving the tongue to slide to the end face of the adjacent inner tube, so that the two adjacent inner tubes are clamped, the mandrels are mounted on the end portion of the elongated push rod to form a stepped shaft, the outer circumferential face of the stepped shaft is attached to the inner circumferential face of the tapered puncture head, the end portion of the mandrel is provided with a micro-protrusion, and the micro-protrusion is used for abutting against the wedge face to drive the tongue to slide to one side close to the axis of the inner tube, so that the two adjacent.
Optionally, the inner tube is a flat tube.
According to the technical scheme, the invention has the beneficial effects that: the invention provides a special TIPS puncture needle, which comprises a puncture part and a slender tubular main body, wherein one end of the tubular main body is provided with a reference end face; the puncture part comprises a plurality of inner tubes, the adjacent inner tubes are sleeved end to end, the sleeve positioned on the outermost side is inserted into the tubular main body in a slidable manner, and one end of each inner tube, which is far away from the tubular main body, is provided with a telescopic end face; the control piece is arranged at one end, far away from the reference end face, of the tubular main body and used for driving the inner tube to slide along the axis of the tubular main body, so that the plurality of telescopic end faces and the reference end face are coplanar to form a feed puncture head, or the plurality of telescopic end faces are separated from each other to form a conical puncture head. The TIPS special puncture needle provided by the invention is convenient to puncture, the difficulty of puncture is convenient to reduce, and the risk of puncture is reduced.
Drawings
In order to more clearly illustrate the detailed description of the invention or the technical solutions in the prior art, the drawings that are needed in the detailed description of the invention or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic perspective view of a braking member according to another embodiment of the present invention;
FIG. 3 is a schematic perspective view of a braking member according to another embodiment of the present invention;
FIG. 4 is a schematic structural view of the inner tube of the present invention;
fig. 5 is an enlarged view of a portion a in fig. 4.
Reference numerals:
the device comprises a tubular main body 1, an inner tube 2, an elongated push rod 3, a brake 4, a locking structure 5, a positioning through hole 11, a telescopic end face 21, a handle 31, an adjusting nut 41, an inner elastic sheet 42, an outer elastic sheet 43, a spring I44, a screw rod 45 at the tail part, a tongue 51, a spring II52, a spring II 53, a mandrel 421, a positioning boss 431, a salient point 511, a wedge surface and a miniature protrusion 531.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
Referring to fig. 1, the puncture needle dedicated for TIPS provided in this embodiment includes:
an elongated tubular body 1, one end of said tubular body 1 being provided with a reference end face;
the puncture part is positioned at one end, close to the reference end face, of the tubular main body, the puncture part comprises a plurality of inner tubes 2, the adjacent inner tubes are sleeved end to end, the sleeve pipe positioned on the outermost side is inserted into the tubular main body in a slidable mode, and one end, far away from the tubular main body, of each inner tube 2 is provided with a telescopic end face 21;
the control piece is arranged at one end, far away from the reference end face, of the tubular main body and used for driving the inner tube to slide along the axis of the tubular main body, so that the plurality of telescopic end faces and the reference end face are coplanar to form a feed puncture head, or the plurality of telescopic end faces are separated from each other to form a conical puncture head. The control member comprises an elongated push rod 3 and a brake 4; the slender push rod 3 is sleeved in the tubular main body and is connected with the inner tube positioned at the innermost side, and the braking piece is arranged on the tubular main body and used for locking or unlocking the slender push rod.
Under the initial state, inner tube 2 cup joints in proper order to accomodate in tubular main part 1, a plurality of this moment scalable terminal surface and benchmark terminal surface coplane form and feed the puncture head, and the surface that feeds the puncture head is sphere or plane. When the hardened liver tissue is met, the control part drives the inner tube to slide along the axis of the tubular body to one end far away from the tubular body, and the inner tube 2 extends out of the tubular body 1, so that the plurality of telescopic end faces are separated from each other to form the conical puncture head. Because the conical puncture head is slimmer and sharper than the feed puncture head, when the conical puncture head is used for puncture, the puncture of hardened liver tissues is easier to be completed, and the force used is smaller. After the hardened liver tissue passes through, the control part drives the inner tube to slide to one end close to the tubular body along the axis of the tubular body, the inner tube 2 slides into the tubular body 1, and the plurality of telescopic end surfaces and the reference end surface are coplanar to form the feeding puncture head again, so that the conical puncture head is prevented from being used for a long time, and the liver tissue of a patient is prevented from being integrally punctured. The special puncture needle for TIPS provided by the embodiment can realize the interconversion between the conical puncture head and the feeding puncture head, is convenient for puncture, is convenient for reduce the difficulty of puncture, and reduces the risk of puncture. As a further improvement to the above technical solution, the inner tubes are flat tubes. Namely, the inner tube is flat, a groove communicated with the tubular main body 1 is formed on the reference end face, and the inner tube is accommodated in the tubular main body 1 and can slide out along the groove. In an initial state, the inner tube is accommodated in the tubular main body 1, and when the hardened liver tissue needs to be punctured, the inner tube sequentially slides out along the groove to form a sheet-shaped conical puncturing head, and the conical puncturing head is similar to a scalpel, so that the hardened liver tissue can be punctured conveniently.
As shown in fig. 4-5, as a further improvement of the above technical solution, a locking structure 5 for preventing the inner tube located on the outer side from sliding before the inner tube located on the inner side is extended to a set length is provided between the adjacent two inner tubes 2. The inner pipe can be conveniently controlled to extend out from inside to outside in sequence. Locking structure 5 is including inserting tongue 51, spring II52 and a plurality of dabber 53, insert the tongue and install on the terminal surface of keeping away from the one end of scalable terminal surface 21 on inner tube 2, and should insert the tongue and can follow the radial slip of inner tube 2, be provided with wedge face 511 on inserting tongue 51, spring II's both ends are connected with inner tube 2 and insert the tongue respectively for the drive inserts the tongue and slides to the terminal surface of adjacent inner tube, makes two adjacent inner tube joints, a plurality of the tip at long and thin push rod is installed to the dabber, forms the step shaft, the outer peripheral face of step shaft and the inner peripheral surface laminating of toper puncture head, the tip of dabber 53 is provided with miniature arch 531, and this miniature arch is used for pressing wedge face drive and inserts the tongue and slide to the one side that is close to the inner tube axis, makes two adjacent inner tubes separation.
In an initial state, the inner tubes 2 are sequentially sleeved and accommodated in the tubular main body 1, and at this time, the insertion tongue on the inner tube 2 positioned on the inner side is positioned on the adjacent inner tube 2 positioned on the outer side at one end provided with the wedge surface 511, so that the two adjacent inner tubes 2 are mutually clamped. As shown in fig. 4, the micro projection 531 located at the rightmost side abuts on the wedge surface 511 on the tongue located at the innermost side, and the remaining micro projections 531 are in a separated state from the tongue. The slender push rod is pushed, the miniature protrusion 531 at the rightmost side extrudes the insertion tongue at the innermost side, so that the insertion tongue slides towards one side close to the axis of the inner tube, the inner tube at the innermost side is separated from the adjacent inner tube, and slides out of the tubular main body 1 under the action of the slender push rod, when the inner tube at the innermost side completely slides out of the tubular main body 1, the miniature protrusion 531 presses against the corresponding insertion tongue, and in the process of pushing the slender push rod, the miniature protrusions are sequentially abutted against the opposite insertion tongues, so that the inner tubes are sequentially separated from the adjacent inner tubes and slide out of the tubular main body 1, and the inner tubes are sequentially extended. It will be understood that in the present embodiment, the inner side refers to the side close to the axis of the tubular body 1 and the outer side refers to the side away from the axis of the tubular body 1.
As a further improvement to the above technical solution, the braking member includes an adjusting nut 41, the outer peripheral surface of the elongated push rod is provided with threads, the adjusting nut is mounted at one end of the tubular body away from the reference end surface and can rotate around the axis of the tubular body, and the adjusting nut is in threaded fit with the elongated push rod. When in use, the elongated push rod is controlled to slide to one side close to or far away from the inner pipe 2 by rotating the adjusting nut 41, and the result is simple and convenient for maintenance.
As a further improvement to the above technical solution, in another embodiment of the present invention, as shown in fig. 2, the braking member 4 includes a tail screw 45, the inner side wall of the tubular body is provided with internal threads, the tail screw is inserted into the tubular body along an end far from the reference end surface and connected with the elongated push rod, and can rotate on the elongated push rod around the axis of the tubular body, and the tail screw is in threaded fit with the tubular body. By rotating the tail screw 45, the slender push rod is controlled to slide to one side close to or far away from the inner pipe 2, and the structure is simple and convenient to maintain.
As shown in fig. 3, as a further improvement to the above technical solution, in another embodiment of the present invention, the braking member 4 includes an inner elastic sheet 42, an outer elastic sheet 43, and a spring I44, one end of the elongated push rod 3 away from the reference end surface extends along an axis of the tubular body, a handle 31 is formed by penetrating through the tubular body, the spring I is sleeved on the elongated push rod, and two ends of the spring I are respectively connected to the handle and the tubular body, a positioning through hole 11 is opened on an outer circumferential surface of the tubular body 1, one end of the inner elastic sheet is fixed on the outer circumferential surface of the elongated push rod, the other opposite end expands to the side away from the elongated push rod and presses against an inner side wall of the tubular body, one end of the inner elastic sheet 42 pressing against the inner side wall of the tubular body is provided with a positioning boss 421, the positioning boss can slide along the axial direction of the tubular body, the outer elastic sheet 43 is arranged on the tubular main body 1 to cover the positioning through hole 11, and the middle part of the outer elastic sheet 43 extends into the positioning through hole to form a salient point 431.
If spring I44 is compression spring, then under the initial condition, location boss 421 is located 11 upper right sides of positioning hole, and the puncture head is fed in the coplane formation of a plurality of scalable terminal surface and reference terminal surface, presses handle 31, location boss 421 slide to positioning hole 11 in with long and thin push rod 3 joint, the scalable terminal surface alternate segregation of a plurality of forms the toper puncture head, this moment location boss 421 just to bump 431 setting, presses outer shell fragment 43, bump 431 will fix a position boss 421 and release positioning hole 11, long and thin push rod 3 slides to the upper right under spring I44's effect, makes the coplane formation of a plurality of scalable terminal surface and reference terminal surface feed the puncture head.
If spring I44 is extension spring, then under the initial condition, location boss 421 is located positioning hole 11 in with elongated push rod 3 joint, location boss 421 just sets up bump 431, and the scalable terminal surface of a plurality of forms with the coplane of reference terminal surface and feeds the puncture head, presses outer shell fragment 43, bump 431 will fix a position boss 421 and release positioning hole 11, elongated push rod 3 slides to the right below under spring I44's effect, and the scalable terminal surface of a plurality of alternate segregation forms the toper puncture head, pulls handle 31 right upper side once more, location boss 421 slide to positioning hole 11 in with elongated push rod 3 joint, the scalable terminal surface of a plurality of forms with the coplane of reference terminal surface and feeds the puncture head. The pushing or pulling out of the slender push rod 3 is realized by pressing the handle 31, the structure is simple, and the maintenance is convenient.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.
Claims (7)
1. A TIPS puncture needle is characterized by comprising:
an elongated tubular body (1), one end of the tubular body (1) being provided with a reference end face;
the puncture part is positioned at one end, close to the reference end face, of the tubular main body, the puncture part comprises a plurality of inner tubes (2), the adjacent inner tubes are sleeved end to end, the sleeve pipe positioned on the outermost side is inserted into the tubular main body in a slidable mode, and one end, far away from the tubular main body, of each inner tube (2) is provided with a telescopic end face (21);
the control piece is used for driving the inner tube to slide along the axis of the tubular body, so that the plurality of telescopic end faces and the reference end face are coplanar to form a feed puncture head, or the plurality of telescopic end faces are separated from each other to form a conical puncture head;
the control part comprises an elongated push rod (3) and a braking part (4); the slender push rod (3) is sleeved in the tubular main body and is connected with the inner tube positioned at the innermost side, and the braking piece is arranged on the tubular main body and used for locking or unlocking the slender push rod.
2. A TIPS special puncture needle according to claim 1, wherein: the brake member comprises an adjusting nut (41), the outer peripheral surface of the slender push rod is provided with threads, the adjusting nut is installed at one end, far away from the reference end face, of the tubular main body and can rotate around the axis of the tubular main body, and the adjusting nut is in threaded fit with the slender push rod.
3. A TIPS special puncture needle according to claim 1, wherein: the brake piece (4) comprises an inner elastic piece (42), an outer elastic piece (43) and a spring I (44), one end of the slender push rod (3) far away from the reference end face extends along the axis of the tubular main body and penetrates through the tubular main body to form a handle (31), the spring I is sleeved on the slender push rod, two ends of the spring I are respectively connected with the handle and the tubular main body, a positioning through hole (11) is formed in the outer peripheral surface of the tubular main body (1), one end of the inner elastic piece is fixed on the outer peripheral surface of the slender push rod, the other opposite end of the inner elastic piece expands towards one side far away from the slender push rod and is pressed against the inner side wall of the tubular main body, a positioning boss (421) is arranged at one end of the inner elastic piece (42) pressing against the inner side wall of the tubular main body and can slide into the positioning through hole along the axial direction of the tubular main body to be clamped with the tubular main body, and the middle part of the outer elastic sheet (43) extends into the positioning through hole to form a salient point (431).
4. A TIPS special puncture needle according to claim 1, wherein: the braking piece (4) comprises a tail screw rod (45), internal threads are arranged on the inner side wall of the tubular main body, the tail screw rod is inserted into the tubular main body along one end far away from the reference end face and connected with the slender push rod, the tail screw rod can rotate on the slender push rod around the axis of the tubular main body, and the tail screw rod is in threaded fit with the tubular main body.
5. A TIPS puncture needle according to any one of claims 1 to 4, wherein: and a locking structure (5) for preventing the inner pipe positioned on the outer side from sliding before the inner pipe positioned on the inner side extends to a set length is arranged between every two adjacent inner pipes (2).
6. A TIPS puncture needle according to claim 5, wherein: the locking structure (5) comprises an inserting tongue (51), a spring II (52) and a plurality of mandrels (53), the inserting tongue is arranged on the end surface of one end of the inner tube (2) far away from the telescopic end surface (21), the inserting tongue can slide along the radial direction of the inner pipe (2), a wedge-shaped surface (511) is arranged on the inserting tongue (51), the two ends of the spring II are respectively connected with the inner tube (2) and the inserting tongue to drive the inserting tongue to slide to the end surface of the adjacent inner tube so as to clamp the two adjacent inner tubes, a plurality of mandrels are arranged at the end part of the slender push rod to form a stepped shaft, the outer peripheral surface of the stepped shaft is attached to the inner peripheral surface of the conical puncture head, a micro-bulge (531) is arranged at the end part of the mandrel (53), the micro-bulge is used for pressing the wedge-shaped surface to drive the inserting tongue to slide towards one side close to the axis of the inner pipe, so that two adjacent inner pipes are separated.
7. A TIPS special puncture needle according to claim 1, wherein: the inner tube is a flat tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010055333.XA CN111150460B (en) | 2020-01-17 | 2020-01-17 | TIPS special puncture needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010055333.XA CN111150460B (en) | 2020-01-17 | 2020-01-17 | TIPS special puncture needle |
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| Publication Number | Publication Date |
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| CN111150460A CN111150460A (en) | 2020-05-15 |
| CN111150460B true CN111150460B (en) | 2020-11-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010055333.XA Expired - Fee Related CN111150460B (en) | 2020-01-17 | 2020-01-17 | TIPS special puncture needle |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109953843A (en) * | 2017-12-26 | 2019-07-02 | 杭州唯强医疗科技有限公司 | The conveying release device of aortic stents |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3888258A (en) * | 1972-11-07 | 1975-06-10 | Taichiro Akiyama | Drain for the eardrum and apparatus for introducing the same |
| CN2047565U (en) * | 1988-12-17 | 1989-11-15 | 孙瑜 | Extension needle-entering tube |
| WO1993014710A1 (en) * | 1992-01-29 | 1993-08-05 | Al Rawi Muthafar Muflih | Fine gauge needles and cannulae |
| CN2198127Y (en) * | 1994-08-05 | 1995-05-24 | 赵云义 | Pantographic instrument |
| US9332973B2 (en) * | 2008-10-01 | 2016-05-10 | Covidien Lp | Needle biopsy device with exchangeable needle and integrated needle protection |
| CN205108572U (en) * | 2015-11-16 | 2016-03-30 | 赵伟 | Intravenous remaining needle |
| CN206761743U (en) * | 2016-12-09 | 2017-12-19 | 成都五义医疗科技有限公司 | It is a kind of can local deformation without knife puncture needle and puncture outfit |
| CN207804347U (en) * | 2017-08-30 | 2018-09-04 | 无锡圣诺亚科技有限公司 | Core is punctured from retraction |
| CN207866866U (en) * | 2017-12-27 | 2018-09-14 | 红板（江西）有限公司 | A kind of circuit board detecting needle pen |
| CN208910409U (en) * | 2018-03-12 | 2019-05-31 | 泊诺(天津)创新医药研究有限公司 | A kind of small-sized laparoscope puncture outfit |
-
2020
- 2020-01-17 CN CN202010055333.XA patent/CN111150460B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109953843A (en) * | 2017-12-26 | 2019-07-02 | 杭州唯强医疗科技有限公司 | The conveying release device of aortic stents |
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