CN104174107A - Novel vessel sheath - Google Patents

Novel vessel sheath Download PDF

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Publication number
CN104174107A
CN104174107A CN201310189122.5A CN201310189122A CN104174107A CN 104174107 A CN104174107 A CN 104174107A CN 201310189122 A CN201310189122 A CN 201310189122A CN 104174107 A CN104174107 A CN 104174107A
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CN
China
Prior art keywords
peelable
peelable sheath
sheath
seat
sheath pipe
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201310189122.5A
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Chinese (zh)
Inventor
贾登强
戴华英
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Demax Medical Tech Co Ltd
BEIJING DEMAX PHARMACEUTICAL TECHNOLOGY Co Ltd
Original Assignee
BEIJING DEMAX PHARMACEUTICAL TECHNOLOGY Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BEIJING DEMAX PHARMACEUTICAL TECHNOLOGY Co Ltd filed Critical BEIJING DEMAX PHARMACEUTICAL TECHNOLOGY Co Ltd
Priority to CN201310189122.5A priority Critical patent/CN104174107A/en
Publication of CN104174107A publication Critical patent/CN104174107A/en
Pending legal-status Critical Current

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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00Catheters; Hollow probes
    • A61M25/01Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/06Body-piercing guide needles or the like
    • A61M25/0662Guide tubes
    • A61M25/0668Guide tubes splittable, tear apart

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biophysics (AREA)
  • Pulmonology (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Prostheses (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

The invention relates to a novel vessel sheath which comprises a tearable sheath tube assembly (1) and an expansion tube assembly (2). The tearable sheath tube assembly (1) comprises a rear cover (11), a rear cover (12), a tearable sheath seat (13), a tearable bleeding stopping valve (14), a tearable sheath tube (15), snap fasteners (16) and (17), a side branch tube (18) and a three-way valve (19). The expansion tube assembly (2) comprises an expansion tube seat (21) and an expansion tube (22). The novel vessel sheath belongs to a vascular intervention medical instrument and not only can solve the problem that an existing vessel sheath cannot completely exit in partial clinical application, but also can avoid the defects of continuous blood leakage and easiness for forming thrombi when a tearing vessel sheath is in use. In the clinical application of the novel vessel sheath, not only can the vessel be sealed up to prevent blood from flowing out, but also two handles (131) and (132) of the tearable sheath seat (13) can be pinched as required and after the tearable sheath seat (13) is respectively torn outwards, the rear covers (11) and (12), the tearable bleeding stopping valve (14) and the tearable sheath tube (15) which are connected with the tearable sheath seat (13) can be divided into two halves along the center lines, so that the vessel sheath is separated and retracted from other instruments inserted in the vessel sheath.

Description

A kind of novel vascular sheath
Technical field
The present invention relates to medical apparatus and instruments, particularly relate to a kind of from external to set up in human vas passage medical apparatus and instruments.
Background technology
Vascular interventional treatment has obtained significant progress, especially heart intervention treating and peripheral blood vessel interventional therapy in recent years.As interventional therapy, the vascular catheterization technology etc. of Wicresoft's interventional therapy, peripheral arterial and the vein of the interventional therapy of coronary heart disease, cardiac pacing, electrophysiological diagnosis and treatment, congenital heart disease.And these treatment meanss are comparatively complicated, especially in therapeutic process, need various apparatuses to enter in human organ diseased region or blood vessel, include primary treatment apparatus, auxiliary treatment apparatus, diagnostor, various kinds of drug etc.These treatments all need to set up passage, i.e. a vagina vasorum by external to blood vessel.Vagina vasorum is by vascular puncture technology, use puncture seal wire guiding vagina vasorum skin expansion muscular tissue to enter epidermis intravascular space, then take out puncture seal wire and convergent divergent channel assembly, peelable sheath pipe assembly far-end is stranded in blood vessel, near-end in vitro, so just set up one by the external passage to intravascular space, can be used for other apparatus and medicine intravasation or carry out hemodynamic monitoring etc.Along with the popularization of technology and application, in clinical course, may there is multiple apparatus to enter in human body by the near-end of vagina vasorum, first vagina vasorum is exited completely needing sometimes, but the apparatus rear end of passing through is therein greater than the internal diameter of vagina vasorum, or be connected on other external apparatuses, cannot exit vagina vasorum, need vagina vasorum in exiting, can tear separation and withdraw from completely.And the vagina vasorum that can tear separation does not at present have peelable haemostatic valve and side shoot pipe, this just causes in the time carrying out arteries operation, cannot stop blood to leak blood from vagina vasorum near-end, simultaneously, while needing to pass through to vagina vasorum inner chamber injectable drug or suction blood, cannot connect suction apparatus.The present invention is based on and address the above problem, having designed one is peelable exceptionally two halves, and sheath pipe near-end is provided with peelable haemostatic valve, simultaneously with the vagina vasorum of side shoot pipe.
The present invention has following advantage in clinical practice, is carrying out angiography, mapping, and electrode inserts, cardiac pacing, cutting tissue, when the work up such as thrombosis extraction and treatment.Due to the frequent turnover of apparatus in sheath pipe, easily by air, foreign bodies etc. are brought in it, be easy to form thrombosis in sheath pipe inside, now can use syringe to be connected with side shoot pipe three-way valve, in inner other apparatuses of motionless vagina vasorum, the thrombosis that can form sheath tube cavity by side shoot chamber is extracted out rapidly, and can, to the normal saline of sheath pipe and side shoot tube cavity injection heparinization, reach the heparinization of tube chamber.Input first aid medicine to intravascular injection rapidly by side shoot three-way valve when needed simultaneously.Can realize quick Disposal Measures.
The present invention is simultaneously in ensureing above-mentioned side shoot pipe, the haemostatic valve of sheath pipe is designed to cross hairs joint-cutting pattern, and one joint-cutting extends to haemostatic valve circumferential periphery, by the pointed design in bonnet and the bonnet of two semicircle designs, complete after the bonding assembling of bonnet, the wedge angle of bonnet is pressed in peelable haemostatic valve on peelable sheath seat tightly.Peelable sheath seat is designed to the tearable groove of both sides symmetry, and when two handss are broken two handles of peelable sheath seat into two with one's hands, and while tearing, handle drives bonnet and peelable haemostatic valve and peelable sheath pipe along fixing route in two.
Summary of the invention
The present invention is a kind of novel vascular sheath, and it includes peelable sheath pipe assembly and convergent divergent channel assembly, and peelable sheath pipe assembly includes peelable sheath seat, peelable bonnet, peelable haemostatic valve, peelable sheath pipe, snap-fastener, side shoot pipe and three-way valve.Convergent divergent channel assembly includes expansion base and convergent divergent channel.
Peelable bonnet of the present invention is two semicircle bonnets compositions, and there is protruding pointed design its inside, and has formed concavo-convex mating surface with peelable sheath seat, make by after bonding assembling, two bonnet intermediate formation tearable cracking.After described bonnet completes assembling, its endoporus has protruding Ka Tai, when after convergent divergent channel assembly and peelable sheath pipe assembled, the groove boss lucky and bonnet of convergent divergent channel assembly forms interference fit, can ensure in whole vagina vasorum intravasation process, can the motion and peelable sheath pipe assembly disengaging backward because convergent divergent channel far-end has first been subject to resistance.Pointed design in bonnet, completes after the bonding assembling of bonnet, and the wedge angle of bonnet is pressed in peelable haemostatic valve on peelable sheath seat tightly.
Peelable haemostatic valve of the present invention is equipped with a circular groove and a cross joint-cutting at centre bit, wherein a joint-cutting is obviously longer than another, and extend to the neighboring of peelable haemostatic valve, in the time of assembling, longer joint-cutting is corresponding with the tearable fluting of the gap of bonnet and peelable sheath seat.The peelable haemostatic valve completing after assembling is pressed on peelable sheath seat tightly by the wedge angle of bonnet.The central recess of peelable haemostatic valve is towards bonnet one side, when other apparatuses are by peelable haemostatic valve in being convenient to perform the operation, play guide function, apparatus is passed through along the center of peelable haemostatic valve, simultaneously, peelable haemostatic valve can form close contact with the outer surface by apparatus, reaches the effect that stops blood to spill.
There are two handles the both sides of peelable sheath seat of the present invention, on it, respectively there is a snap-fastener, described peelable sheath pipe is fluorine plastic tube, cannot fix with other polymeric bonding materials, snap-fastener of the present invention is through behind the hole of peelable sheath pipe near-end, fixed thereon when peelable sheath seat injection moulding, can prevent that peelable sheath pipe from departing from peelable sheath seat in the process of tearing, and solved the problem that peelable sheath pipe cannot be connected and fixed with peelable sheath seat.
Side shoot pipe of the present invention is arranged on handle below by peelable sheath seat one side, the other end is connected with single three-way valve, jointly form the path that side shoot leads to peelable sheath tube cavity, while can be clinical use, provide thrombosis suction, drug injection, the sheath tube cavity heparinization etc. to operate fast and easily.
Peelable sheath pipe far-end of the present invention and convergent divergent channel far-end all present tapered conical head, can avoid the damage of described sheath pipe in intravasation process.Described peelable sheath tip end internal diameter has formed zero clearance with described convergent divergent channel external diameter and has coordinated.
The object of the invention is by realizing with the preferred technical scheme of the next one:
Described bonnet is semi-circular design, has formed a peelable gap after completing assembling.Described peelable haemostatic valve makes it form a cross joint-cutting in center by machine cuts technique, and has a joint-cutting longer, extends to the neighboring of peelable haemostatic valve, but does not cut completely.The centre bit of peelable haemostatic valve is equipped with a circular groove.Described peelable sheath seat forms by injection moulding, and this process is fixed on described peelable sheath pipe on peelable sheath seat.By the design of grinding tool structure, make the peelable sheath seat after injection moulding have two symmetrical tearable flutings, but do not communicated with the inside of peelable sheath seat, in the time tearing operation, peelable sheath seat, along tearing the position that groove is most fragile, will be torn.
The fluoroplastic pipe that peelable sheath pipe of the present invention is extrusion molding, by the design and processes control of extrusion die, make sheath pipe after extruding, outer surface has formed two symmetrical tearable flutings, after the near-end punching of sheath pipe, along tearable fluting, the part of sheath pipe is cut into two halves, then after assembling with snap-fastener, carries out injection moulding.
New structure of the present invention is simple, reasonable, has solved the not tearable property of existing vagina vasorum completely, and existing peelable sheath cannot stop blooding and the operation that cannot carry out side shoot extraction or injection.And make fluorine plastic tube reach firm with moulding by particular design and be connected, this invention can meet the instructions for use of existing clinical vagina vasorum completely.Make that other apparatuses turnover blood vessels are convenient, fast, safety, can greatly reduce the probability of thrombosis or air intravasation.
Novel vascular sheath sheath tube cavity diameter of the present invention is 1.00mm-5.0mm, and length is 50mm-350mm.Complete after assembling, the peelable sheath pipe far-end of the peelable sheath pipe of shutoff assembly, pressurizes to peelable sheath pipe assembly inner chamber from three-way valve, and the pressure that peelable haemostatic valve and peelable sheath pipe assembly each several part can bear 42Kpa does not leak.
Brief description of the drawings
Fig. 1 is a kind of novel vascular sheath assembling of the present invention schematic diagram;
Fig. 2 is novel vascular sheath assembling partial sectional view
Fig. 3 is the exploded view of peelable sheath pipe assembly;
Fig. 4 is peelable sheath pipe assembled partial sectional view;
Fig. 5 is the schematic diagram of peelable haemostatic valve;
Fig. 6 is the cutaway view of bonnet;
Fig. 7 be convergent divergent channel assembly structural representation;
Wherein: 1 peelable sheath pipe assembly; 2 convergent divergent channel assemblies; 11,12 bonnets; 13 peelable sheath seats; 14 can
Tear haemostatic valve; 15 peelable sheath pipes; 16,17 snap-fasteners; 18 side shoot pipes; 19 three-way valve.
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, a kind of novel vascular sheath of the present invention is further elaborated; And described " far-end " and " near-end " are with respect to medical personnel, at a distance be referred to as far-end, relatively near medical care operator be referred to as near-end, so-called near-end is relative with far-end, there is no absolute differentiation.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
The present embodiment is to design in conjunction with clinical widespread demand the most according to product application for many years.Existing vagina vasorum exists cannot tear two halves, or cannot assemble peelable haemostatic valve and side shoot pipe and three-way valve, cause product application cannot cover operation more widely, maybe can only be used for vein blood vessel as being used for arteries, can only be used for Coronary Artery Disease Intervention Treatment, maybe can only be used for cardiac pacing therapy.And the embodiments of the invention product range of application of extended products greatly, as Coronary Artery Disease Intervention Treatment, electric physiology, cardiac pacing, peripheral blood vessel intervention, central vein vascular interventional treatment etc.
As shown in Figures 1 and 2, novel vascular sheath of the present invention includes peelable sheath pipe assembly (1) and convergent divergent channel assembly (2), it first fits together two assemblies in the time of clinical use, on the expansion base (21) on described convergent divergent channel assembly (2), has a groove (211), two semicircle bonnets (11) on described peelable sheath pipe assembly (1) and (12) complete in assembling tailing edge inner periphery direction projection (111), described groove (211) completes after assembling as shown in Figure 2 with projection (111), form interference fit, in the time of split extension pipe assembly (2) and peelable sheath pipe assembly (1), need apply certain power to two assemblies could separate, this separating force is enough to ensure in clinical use, in vagina vasorum intravasation process after the suffered resistance of convergent divergent channel (22) far-end, convergent divergent channel assembly (2) can not separate with peelable sheath pipe assembly (1).By vascular puncture technology, by puncture seal wire, novel vascular sheath to be introduced in blood vessel, fixing peelable sheath pipe assembly (1) is motionless, extracts convergent divergent channel assembly (2), sets up thus a passage by outside intravasation.
Be illustrated in figure 3 the exploded view of peelable sheath pipe assembly, peelable sheath pipe assembly (1) includes bonnet (11), bonnet (12), peelable sheath seat (13), peelable haemostatic valve (14), peelable sheath pipe (15), snap-fastener (16) and (17), side shoot pipe (18), three-way valve (19).
As shown in Figure 3, peelable sheath pipe (15) is fluorine plastic tube, its outer surface has two symmetrical tearable flutings (151), near-end is cut into two fixed-wings (152) along tearable fluting (151), and on fixed-wing (152), there are two through holes (153), a fixed-wing (152) has a hole (154) near far-end therein, and the far-end of peelable sheath pipe (15) presents tapered conical head end (155), can reduce the damage to blood vessel.
As shown in Figure 3 and Figure 4, peelable sheath seat (13) is by Shooting Technique, snap-fastener (16), (17) and peelable sheath pipe (15) to be linked together.Peelable sheath seat (13) has two symmetrical handles (131) and (132), the Ka Tai (138) coordinating with bonnet (11) and (12), in its direction vertical with (132) with handle (131), there are two tearable grooves (133) to journey, mounting groove (134) and the platform (135) of inner and peelable haemostatic valve assembling, the intubate seat (136) of installation side tap (18).Described snap-fastener (16) links together by injection moulding and peelable sheath seat (13) with snap-fastener (17) interference fit through the through hole (153) of peelable sheath pipe (15), makes peelable sheath pipe (15) meet certain power that is connected with peelable sheath seat (13).
As shown in Figure 5, peelable haemostatic valve (14) is elastomeric material, there is a cross joint-cutting heart position therein, wherein joint-cutting (141) is longer than joint-cutting (142), and extend to its neighboring, be equipped with a circular groove (143) at the centre bit of peelable haemostatic valve (14), have ledge (144) at an outward flange contrary with circular groove (143).Peelable haemostatic valve (14) is arranged on the near-end inside of peelable sheath seat (13), and joint-cutting (141) is alignd with tearable groove (133), and ledge (144) is embedded in mounting groove (134).
As shown in Figure 6, bonnet (11) and (12) are two semi-circular design, fluted inside its far-end (112), along the circumferential direction, there is a circle wedge angle (113), there is projection (111) near-end inner side, two bonnets are bonded in the near-end outside of peelable sheath seat (13), and the groove (112) on it coordinates with the Ka Tai (138) of peelable sheath seat (13).The platform (135) that peelable haemostatic valve (14) is pressed on peelable sheath seat (13) by wedge angle (113) is upper, and now peelable haemostatic valve (14), through the proximal openings sealing of peelable sheath seat (13), has formed the effect of hemostasis.
As shown in figures 1 and 3, one end of side shoot pipe (18) is arranged on the intubate seat (136) of peelable sheath seat (13), and the other end connects a three-way valve (19).Its inner chamber communicates with the inner chamber of peelable sheath seat (13) by the hole (154) of peelable sheath pipe (15), and communicates with the far-end of peelable sheath pipe (15).
As shown in Figure 5, convergent divergent channel assembly (2) is made up of expansion base (21) and convergent divergent channel (22), expand on base (21), have a groove (211) can with bonnet (11) and (12) inner periphery direction on have projection (111) to form interference fit.The near-end of expansion base (21) is female cone locking female Luer, and its inner chamber communicates along the inner chamber of convergent divergent channel (22), can pass through the seal wire (0.35mm is to 1.0mm) of 0.014 inch to 0.038 inch.The far-end of convergent divergent channel presents tapered conical head end, while entering human body to reduce peelable vagina vasorum, to the damage of blood vessel or tissue.
Described novel vascular sheath, the material of its peelable sheath pipe (15) is PTFE, FEP, the fluoroplastics such as ETFE, become body by extrusion molding or other technological formings, and plain end pipe is difficult to straight line vertically and tears, the present invention has adopted in the time of pipe extrusion molding or following process, form the symmetrical seam of tearing at the outer surface of pipe, the degree of depth of seam can account for the 10%-95% of pipe wall thickness, make pipe vertically straight line tear.
In the present embodiment, it is little that fluoroplastics pipe has frictional resistance, is difficult to bonding or bonding feature, and this case, by special Shooting Technique and pre-treatment, can make fluorine plastic tube and peelable sheath seat be connected firmly, easy to operate.
Novel vascular sheath in the present embodiment, simple in structure, easy to use, can meet at present the application requirements of most of sheath clinically, realize the integrated design of tearable property and side shoot pipeline and the anthemorrhagic performance of vagina vasorum, brought great convenience to medical personnel's apparatus selection and operation.
Finally it should be noted that obviously, those skilled in the art can carry out various changes and modification and not depart from the spirit and scope of the present invention the present invention.Like this, if these amendments of the present invention and within modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention is also intended to comprise these changes and modification.

Claims (10)

1. a novel vascular sheath, comprising:
Peelable sheath pipe assembly (1) and convergent divergent channel assembly (2);
Described peelable sheath pipe assembly (1) comprises bonnet (11), bonnet (12), peelable sheath seat (13), peelable haemostatic valve (14), peelable sheath pipe (15), snap-fastener (16) and (17), side shoot pipe (18), three-way valve (19); Described convergent divergent channel assembly (2) has expansion base (21) and convergent divergent channel (22);
Described peelable sheath pipe assembly (1) completes after assembling, there are two to run through bonnet, peelable haemostatic valve, peelable sheath seat, peelable sheath pipe and the tearable crack along diametric(al) symmetry along axis direction, in the time pinching two handles of peelable sheath with hands and separate laterally, whole peelable sheath pipe assembly will be torn along tearable crack, thereby pass through fracture with its inside;
Described peelable sheath pipe assembly (1) is with a side shoot path, formed by side shoot pipe (18) and three-way valve (19), its bore passages communicates with the inner chamber of peelable sheath seat (13), and communicate in the inner chamber of peelable sheath pipe (15), medical personnel can be by three-way valve to peelable sheath pipe assembly inner chamber injectable drug, or extracts vessel inner blood, and this passage can not changed under the condition of other apparatuses, extract Intravascular Thrombus, fast to intravascular injection medicine;
Described novel vascular sheath includes peelable haemostatic valve (14) when having tearable property, have peelable prefabricated crack in peelable haemostatic valve (14).
Described peelable haemostatic valve (14) therein heart position has a cross crack and a guiding pit, can meet other apparatuses by peelable haemostatic valve (14) time, haemostatic valve energy smooth opening, and ensure apparatus heart position therein, haemostatic valve and pass through apparatus close contact, keep seamless, reach and stop blood to spill.
2. according to the bonnet described in claim 1 (11) and (12), it is characterized in that described bonnet is semi-circular design, after two bonnets and peelable sheath seat (13) are installed, bonnet and peelable sheath seat are bonded together with corresponding adhesive, and two bonnet intermediate formation a gap, carrying out peelable sheath pipe assembly while tearing, first bonnet is opened along this seam.
3. according to described in claim 1 and claim 2, when two bonnets and peelable sheath seat are bonding, in the middle of it, pack peelable haemostatic valve (14) into, described peelable haemostatic valve (14) therein heart position has a cross crack and a guiding pit, and a crack in cross crack is longer, may extend into the outer circumference edge of silica gel valve, the corresponding installation in gap of this crack and two bonnets.And the wedge angle of two bonnets is pressed in peelable haemostatic valve on peelable sheath seat tightly, carrying out peelable sheath pipe assembly while tearing, peelable haemostatic valve disconnects the crack along longer to become two halves.
4. according to the peelable sheath seat (13) described in claim 1, it is characterized in that on peelable sheath base (13), having two handles (131) and (132), and on peelable sheath seat (13), there is corresponding with the long crack of peelable haemostatic valve (14) tearing groove (133), carrying out peelable sheath pipe assembly while tearing, peelable sheath seat will be torn and become two halves along tearable groove.
5. according to claim 1 and peelable sheath seat claimed in claim 4 (13), handle (132) below of one side has a side opening (137) to communicate with the inner chamber of peelable sheath seat, and protrude from the outside of peelable sheath seat, its profile has the rib of circumferential protrusion, can closely cooperate with the inwall of described side shoot pipe, reach sealing and prevent that side shoot pipe from coming off.
6. be connected a three-way valve (19) according to claim 1 with the other end of the side shoot pipe (18) described in claim 5, described three-way valve has the knob of the opening and closing can selected, can be according to medical personnel's needs, the path of three directions can be closed respectively or open to rotary knob.Three-way valve and side shoot pipe and peelable sheath seat have formed bore passages, and this passage communicates with the inner chamber of peelable sheath pipe.
7. peelable sheath pipe (15) is made for fluoroplastics according to claim 1, and it has smooth performance.There are two corresponding with the tearing groove of peelable sheath seat grooves of tearing in outside, extend to far-end by near section, described peelable sheath pipe far-end presents the tapered feature of taper, its inner chamber is that zero clearance coordinates with described convergent divergent channel, can make vagina vasorum in the time of intravasation to skin, the damage minimum that muscular tissue and blood vessel wall cause.The nearly section of described peelable sheath pipe has one section to be separated into two halves completely along tearing groove, and on two halves, has respectively a hole.
According to two snap-fasteners (16) described in claim 1 and claim 7 and (17), peelable sheath seat, bonnet by macromolecular material injection mo(u)lding.Described two snap-fasteners are respectively through closely two holes of section of described peelable sheath pipe, and be fixed on by injection moulding on two handles of peelable sheath seat, due to fluoroplastics when the injection moulding and other macromolecular materials fused, can ensure that by this invention carrying out vagina vasorum while tearing, two handles can drive peelable sheath pipe to tear smoothly along tearing seam by snap-fastener.
9. according to the convergent divergent channel assembly (2) described in claim 1, it is characterized in that on described expansion base (21), thering is a circumferential groove, can form interference fit with the endoporus of described bonnet, ensure that convergent divergent channel assembly and peelable sheath pipe assembly complete after assembling in the time entering muscle or blood vessel, can not should be resistance and cause convergent divergent channel assembly to retreat.Described convergent divergent channel far-end presents tapered conical structure, can make convergent divergent channel in the time of intravasation to skin, the damage minimum that muscular tissue and blood vessel wall cause.
10. according to the novel vascular sheath described in claim 1, the internal diameter of its peelable sheath pipe is 1.0mm-5.0mm, and length is 50mm-350mm.Complete after assembling, the peelable sheath pipe far-end of the peelable sheath pipe of shutoff assembly, pressurizes to peelable sheath pipe assembly inner chamber from three-way valve, and the pressure that peelable haemostatic valve and peelable sheath pipe assembly each several part can bear 42Kpa does not leak.
CN201310189122.5A 2013-05-21 2013-05-21 Novel vessel sheath Pending CN104174107A (en)

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Cited By (16)

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Publication number Priority date Publication date Assignee Title
CN105056371A (en) * 2015-08-17 2015-11-18 湖南埃普特医疗器械有限公司 Guiding sheath
CN106377301A (en) * 2015-07-28 2017-02-08 上海微创医疗器械(集团)有限公司 Blood vessel puncture outfit
CN106510778A (en) * 2016-12-14 2017-03-22 陈飞 Novel tearable vein sheath
WO2019090351A3 (en) * 2017-11-06 2019-06-13 Abiomed, Inc. Peel away hemostasis valve
CN110960285A (en) * 2020-01-15 2020-04-07 付志刚 Vascular sheath group with hemostasis function
CN111012411A (en) * 2019-12-31 2020-04-17 沛嘉医疗科技(苏州)有限公司 Guide sheath
CN111374732A (en) * 2018-12-29 2020-07-07 上海微创龙脉医疗器材有限公司 Hemostatic valve and delivery system
CN111869657A (en) * 2020-08-17 2020-11-03 广东顺德工业设计研究院(广东顺德创新设计研究院) In-vitro liver perfusion system, connector tube assembly and connecting method thereof
CN113398463A (en) * 2021-06-17 2021-09-17 丰凯医疗器械(上海)有限公司 Envelope and pump blood pipe that use with pump blood pipe cooperation
CN113768587A (en) * 2021-07-26 2021-12-10 兰州大学第一医院 Intraspinal analgesia catheter implantation system for treating refractory cancer pain
CN114746141A (en) * 2019-11-14 2022-07-12 阿比奥梅德公司 Hemostatic valve for a sheath assembly
CN114848226A (en) * 2022-04-15 2022-08-05 中国科学院亚热带农业生态研究所 Blood cannula assembly for cattle
CN115337521A (en) * 2022-10-19 2022-11-15 上海汇禾医疗器械有限公司 Catheter sheath device with hemostasis valve
CN116510161A (en) * 2023-06-30 2023-08-01 苏州汇禾医疗科技有限公司 Catheter sheath for interventional therapy
CN116688321A (en) * 2023-08-07 2023-09-05 苏州心岭迈德医疗科技有限公司 Tearable sheath
CN117257423A (en) * 2023-11-23 2023-12-22 安徽通灵仿生科技有限公司 Anti-countercurrent tearable sheath tube

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CN106377301A (en) * 2015-07-28 2017-02-08 上海微创医疗器械(集团)有限公司 Blood vessel puncture outfit
CN105056371A (en) * 2015-08-17 2015-11-18 湖南埃普特医疗器械有限公司 Guiding sheath
CN106510778A (en) * 2016-12-14 2017-03-22 陈飞 Novel tearable vein sheath
CN106510778B (en) * 2016-12-14 2024-02-20 河北医科大学第二医院 Novel tearable venous sheath
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WO2019090351A3 (en) * 2017-11-06 2019-06-13 Abiomed, Inc. Peel away hemostasis valve
IL301505B1 (en) * 2017-11-06 2024-04-01 Abiomed Inc Peel away hemostasis valve
CN111374732A (en) * 2018-12-29 2020-07-07 上海微创龙脉医疗器材有限公司 Hemostatic valve and delivery system
CN114746141A (en) * 2019-11-14 2022-07-12 阿比奥梅德公司 Hemostatic valve for a sheath assembly
CN111012411A (en) * 2019-12-31 2020-04-17 沛嘉医疗科技(苏州)有限公司 Guide sheath
CN110960285A (en) * 2020-01-15 2020-04-07 付志刚 Vascular sheath group with hemostasis function
CN111869657A (en) * 2020-08-17 2020-11-03 广东顺德工业设计研究院(广东顺德创新设计研究院) In-vitro liver perfusion system, connector tube assembly and connecting method thereof
CN113398463A (en) * 2021-06-17 2021-09-17 丰凯医疗器械(上海)有限公司 Envelope and pump blood pipe that use with pump blood pipe cooperation
CN113398463B (en) * 2021-06-17 2024-03-01 丰凯利医疗器械(上海)有限公司 Envelope and pump blood pipe that cooperation was used with pump blood pipe
CN113768587A (en) * 2021-07-26 2021-12-10 兰州大学第一医院 Intraspinal analgesia catheter implantation system for treating refractory cancer pain
CN114848226A (en) * 2022-04-15 2022-08-05 中国科学院亚热带农业生态研究所 Blood cannula assembly for cattle
CN115337521A (en) * 2022-10-19 2022-11-15 上海汇禾医疗器械有限公司 Catheter sheath device with hemostasis valve
CN116510161B (en) * 2023-06-30 2023-09-08 苏州汇禾医疗科技有限公司 Catheter sheath for interventional therapy
CN116510161A (en) * 2023-06-30 2023-08-01 苏州汇禾医疗科技有限公司 Catheter sheath for interventional therapy
CN116688321A (en) * 2023-08-07 2023-09-05 苏州心岭迈德医疗科技有限公司 Tearable sheath
CN116688321B (en) * 2023-08-07 2023-10-13 苏州心岭迈德医疗科技有限公司 Tearable sheath
CN117257423A (en) * 2023-11-23 2023-12-22 安徽通灵仿生科技有限公司 Anti-countercurrent tearable sheath tube

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Application publication date: 20141203