CN202892618U - Vascular sheath capable of being torn - Google Patents
Vascular sheath capable of being torn Download PDFInfo
- Publication number
- CN202892618U CN202892618U CN2012203173704U CN201220317370U CN202892618U CN 202892618 U CN202892618 U CN 202892618U CN 2012203173704 U CN2012203173704 U CN 2012203173704U CN 201220317370 U CN201220317370 U CN 201220317370U CN 202892618 U CN202892618 U CN 202892618U
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- torn
- pipe
- peelable sheath
- sheath
- tube
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Abstract
The utility model discloses a vascular sheath capable of being torn, belongs to interventional diagnosis and treatment auxiliary medical instruments, and particularly relates to a technology solution of a tube capable of being torn. The vascular sheath capable of being torn comprises a sheath tube capable being torn and an expansion tube which can be assembled together and locked reliably. The vascular sheath capable of being torn comprises the tube capable of being torn and a sheath tube seat capable of being torn. The expansion tube is formed by a tube body and an expansion tube seat. A pair of symmetrical tearing seams capable of being conveniently torn is arranged on the sheath tube capable of being torn, and an end portion, far away from an outer sheath seat, of the tube body is gradually tapered off to form conicity, and the head portion of the end portion is in an arc shape. Two wing-shaped handles are arranged on the sheath tube seat capable of being torn, and tearing grooves corresponding to the tearing seams of the sheath tube capable of being torn are arranged in the sheath tube seat. A pair of protrusions is further arranged on the sheath tube seat capable of being torn, and the protrusions can be matched with grooves on the expansion tube seat to ensure that the sheath tube capable being torn and the expansion tube can be assembled together and locked reliably. The vascular sheath capable of being torn is simple in structure, easy to tear, reliable in assembly and locking, and capable of reducing damage to blood vessels in the surgery process. After the outer sheath tube is used, a user can pinch the wing-shaped handles to tear the sheath tube outwards to enable catheters and other instruments to easily enter and go out of the blood vessels.
Description
Technical field
This utility model belongs to a kind of invasive diagnosis and treatment medical assistance apparatus, particularly relates to a kind of tearable open form vagina vasorum.
Background technology
Wicresoft's interventional technique grew up in 20 century 70 later stages, was faster a kind of medical new technique of development in recent years.It is under medical imaging (x-ray, ultrasonic, CT, MRI) guiding that Wicresoft gets involved, by the percutaneous puncture approach or by the original duct of human body, special conduit or other apparatuses are inserted to diseased region or desired area, carry out radiography, mapping, support is implanted, cardiac pacing, cutting tissue, work up and the treatments such as thrombosis extraction.What application was wider at present is aspect the treatment of cardiovascular and tumor disease.Become the another kind of very effective treatment means except surgery operation, Drug therapy.Wicresoft's interventional therapy is little to patient trauma, and good effect, expense are low.
The conduit that Wicresoft's interventional therapy is used, support, seal wire, the apparatuses such as electrode are to enter into the target location by external by blood vessel, and before all apparatus intravasations, must set up first a unimpeded effective passage under extraneous and human body skin.Vagina vasorum is exactly be used to the crucial apparatus of setting up this passage, and its main method is to wear to blood vessel from human body skin by puncture needle, with puncturing seal wire behind puncture needle inner chamber intravasation, withdraw from puncture needle, tearable open form vagina vasorum is entered human vas along seal wire, withdraw from seal wire.Then finish from extraneous Path Setup with human vas.And traditional vagina vasorum need not be withdrawn from midway, until the operation finish after, withdraw from again.In the part intervene operation, as carry out the implantation of cardiac pacemaker, after electrophysiologicalcatheter catheter or other apparatuses enter human vas, need to withdraw from vagina vasorum, but it is larger to have entered the apparatus back segment of human vas, vagina vasorum can't directly be withdrawn from, at this moment, on one side need vagina vasorum to withdraw from, Yi Bian tear.
Development along with interventional therapy, some problems have also appearred simultaneously in existing tearable open form vagina vasorum, as tear the sheath assembling and lock reliable not, when intravasation, the patient will rotate vagina vasorum and enter tissue, cause the vagina vasorum locking to separate, add to the difficulties and injured blood vessel, when carrying out complicated interventional therapy, when epitheca effective complete after, in the time of need to withdrawing from the body, can't tear smoothly the sheath pipe, or it is larger to tear resistance, operating difficulties, the sheath base is connected insecure with the sheath pipe, cause the sheath base to separate with the sheath pipe, can't tear etc.Therefore the epitheca pipe that a kind of tearing mode vagina vasorum assembling locking is reliable and can tear must be arranged, just can better carry out this type of operation.
Summary of the invention
The purpose of this utility model is exactly to assemble locking reliably in operation in order to solve the tearing mode vagina vasorum, intravasation safety smoothly, when epitheca needs to withdraw from the body after using, can tear easily, easy to operate, safe and reliable tears, and provides a kind of the assembling to lock reliable, the rear peelable vagina vasorum of use.
The purpose of this utility model realizes by following Technical Design:
A kind of tearing mode vagina vasorum, it comprises a peelable sheath pipe and a convergent divergent channel, opens to tear that sheath pipe and convergent divergent channel can be assembled together and can positive lock.Described peelable sheath pipe is comprised of tearable open pipe and peelable sheath base, and described convergent divergent channel is comprised of body and expansion base; Have a pair of symmetrical tear seam and the body of being convenient to tear on the tearable open pipe and be tapered away from the end of peelable sheath base, form tapering, and head presents circular-arc.Two wing handles are arranged on the peelable sheath base, and peelable sheath base is provided with tearable open pipe and tears the corresponding tearing groove of seam, also be provided with a pair of projection on the peelable sheath base, thereby this projection can match with the groove of expansion on the base and guarantees that peelable sheath pipe and convergent divergent channel are assembled together and can positive lock.
This utility model has solved the switching performance of the tearable property of tearable open pipe and itself and peelable sheath base by special technique.Tearable open pipe has designed special Technology and mould when extrusion molding, when pipe is extruded, the seam of tearing of a symmetry is arranged vertically, and when injection mo(u)lding, makes to tear to stitch and align with the tearing groove of peelable sheath base, can reach the effect that integral body is torn.When peelable sheath base injection moulding, tearable open pipe injection moulding section is become sufficiently long wing along tearing seaming and cutting, and punch at the wing of two symmetries, so that after the injection moulding, tearable open pipe and peelable sheath base can have preferably bonding strength.
This utility model is simple and reasonable for structure, and the assembling locking is reliable, tears easily, and is easy to operate, can lower the damage to blood vessel in the operation process, after peelable sheath pipe uses, pinches the wing handle and just can outwards tear the sheath pipe.So that other apparatus turnover blood vessels are easy.
Tearable open form vagina vasorum sheath tube cavity diameter described in the utility model is 1.33mm-5.0mm.
Description of drawings
Fig. 1 is a kind of assembling sketch map of tearable open form vagina vasorum;
Fig. 2 is the structural representation of an embodiment of peelable sheath pipe;
Fig. 3 shows lateral plan and the Reference numeral of peelable sheath pipe shown in Figure 2;
Fig. 4 is the structural representation of convergent divergent channel;
Fig. 5 shows the Reference numeral of convergent divergent channel structural representation shown in Figure 4;
Fig. 6 is peelable sheath pipe cutaway view;
Fig. 7 is the sketch map of tearing seam on the tearable open pipe.
Wherein: 1 tearable open form vagina vasorum; 2 peelable sheath pipes; 3 convergent divergent channels; 21 tearable open pipes; 22 peelable sheath bases; 23 wing hands handles; 24 projections; 25 tearing grooves; 26 tear seams; 31 bodys; 32 expansion bases; 33 grooves.
The specific embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, a kind of tearable open form vagina vasorum of the present utility model is further elaborated; Should be appreciated that specific embodiment described herein only in order to explaining this utility model, and be not used in restriction this utility model.
To shown in Figure 6, be the specific embodiment of the tearable open form vagina vasorum of this utility model such as Fig. 1; Described tearable open form vagina vasorum comprises peelable sheath pipe 2, convergent divergent channel 3, tearable open pipe 21, peelable sheath base 22; Wing handle 23; Projection 24; Tearing groove 25; Body 31; Expansion base 32; Groove 33.Preferably, body 31 is tapered in the end away from expansion base 32 and forms tapering, and head presents circular-arc.
The inner chamber of tearable open pipe 21 communicates with peelable sheath base 22 inner chambers, tearable open pipe 21 has tearing of a symmetry to stitch 26 vertically, there are two symmetrical wing handles 23 peelable sheath base 22 both sides, two tearing grooves 25 of two wing handle 23 intermediate formation, the seam 26 torn on the tearable open pipe 21 aligns with tearing groove 25;
Expansion base 32 is assembled into convergent divergent channel 2 with body 31 injection mouldings, inner chamber forms a passage, its body 31 can be inserted into the inner chamber of peelable sheath pipe 22, expansion base 32 is provided with pair of L-shaped groove 33, projection 24 on the peelable sheath base 22 can with convergent divergent channel 3 on groove 33 by the positive lock that turns clockwise, but separate by being rotated counterclockwise release.The inner chamber of described peelable sheath pipe 2 in operation, can pass through such as other apparatuses such as electrophysiologicalcatheter catheter, heart electrode, cardiac valve, and when needs are withdrawn from, but peelable sheath pipe is withdrawn from the limit, and vagina vasorum is torn on the limit, easy-to-operate.
Described peelable sheath pipe 2 and convergent divergent channel 3, before operation technique, convergent divergent channel 3 need to be inserted into 2 kinds of peelable sheath pipes from peelable sheath base 22 ends, and the extension tube 3 that turns clockwise, make its with peelable sheath pipe 2 by the positive lock that cooperates between projection 24 and the groove 23.The seal wire exposed junction that enters into puncture vessel is pierced into the head cavity of the convergent divergent channel body 31 on the tearable open form vagina vasorum 1 of positive lock, fixedly seal wire is motionless, advance tearable open form vagina vasorum 1 along seal wire, until tearable open form vagina vasorum 1 enters in the blood vessel, fixedly vagina vasorum is motionless, withdraw from seal wire, be rotated counterclockwise convergent divergent channel 2, remove the locking with peelable sheath pipe 2, fixing peelable sheath pipe 2 is motionless, withdraws from convergent divergent channel 3, can place other apparatuses along peelable sheath pipe 2 inner chambers, in the time of need to withdrawing from peelable sheath pipe 2, pinch two wing handles 23 while can withdraw from, tear peelable sheath pipe 2.
The head of described peelable sheath pipe 2 and convergent divergent channel 3 all is tapered, and head presents circular-arc, when entering human body to reduce peelable vagina vasorum, to the damage of blood vessel or tissue.
Described tearable open form vagina vasorum 1, the material of its tearable open pipe is PTFE, FEP, the fluoroplastics such as ETFE become body by extrusion molding or other technological formings, the very difficult vertically straight line of plain end pipe is torn, this case has been adopted when pipe extrusion molding or following process, forms the symmetrical seam of tearing at the outer surface of pipe, and the degree of depth of seam can account for the 10%-95% of pipe wall thickness, make pipe vertically straight line tear, as shown in Figure 7.
In the present embodiment, it is little that the fluoroplastics pipe has frictional resistance, be difficult to bonding or bonding characteristics, this case can make fluorine plastic tube and peelable sheath base be connected firmly by special Shooting Technique and pre-treatment, implementation as, the wing punching that is embedded to peelable sheath base at pipe is fixed, when injection moulding, the melted material of peelable sheath base enters in the aperture of pipe both sides wing, plays the effect in bolt jail.
Tearable open form vagina vasorum in the present embodiment, simple in structure, easy to use, overcome the tearing property of fluorine plastic tube and the problem of embedded part injection moulding, bring great convenience for medical personnel's operation.
Should be noted that at last that obviously those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these revise and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification.
Claims (8)
1. a tearable open form vagina vasorum (1), it comprises a peelable sheath pipe (2) and a convergent divergent channel (3), peelable sheath pipe (2) and convergent divergent channel (3) can be assembled together and the energy positive lock, it is characterized in that described peelable sheath pipe (2) is comprised of tearable open pipe (21) and peelable sheath base (22), described convergent divergent channel (3) is comprised of body (31) and expansion base (32).
2. the tearable open form vagina vasorum (1) described in according to claim 1, it is characterized in that having on the tearable open pipe (21) a pair of symmetrical tear seam (26) and the body of being convenient to tear is tapered away from the end of peelable sheath base (22), form tapering, and head presents circular-arc.
3. the tearable open form vagina vasorum (1) described in according to claim 1, it is characterized in that two wing handles (23) are arranged on the peelable sheath base (22), and peelable sheath base (22) be provided with tearable open pipe (21) tear the corresponding tearing groove (25) of seam (26).
4. the tearable open form vagina vasorum (1) described in according to claim 1, it is characterized in that also being provided with on the peelable sheath base (22) a pair of projection (24), this projection (24) can with expansion base (32) on groove (33) thus match and guarantee that peelable sheath pipe (2) and convergent divergent channel (3) are assembled together and the energy positive lock.
5. the tearable open form vagina vasorum (1) described in according to claim 2, it is characterized in that tearable open pipe (21) outer surface have a pair of symmetrical be convenient to tear tear seam (26), its material is PTFE, FEP, the fluoroplastics such as ETFE, it is little to have frictional resistance, is difficult to and other materials fusion or bonding.
6. the tearable open form vagina vasorum (1) described in according to claim 5, it is characterized in that peelable sheath base (22) and tearable open pipe (21) link together by Shooting Technique, assurance is difficult to merge with other materials or bonding tearable open pipe (21) can firmly link together with peelable sheath base (22).
7. the tearable open form vagina vasorum (1) described in according to claim 1 is characterized in that, body (31) is being tapered in the end away from expansion base (32) and is forming tapering, and head presents circular-arc.
8. the tearable open form vagina vasorum (1) described in according to claim 4, it is characterized in that expanding base (32) and be provided with pair of L-shaped groove (33), this groove (33) can match with the projection (24) on the peelable sheath base (22), by reverse clockwise the expansion base (32) thus guarantee peelable sheath pipe (2) and convergent divergent channel (3) can be assembled together and the energy positive lock, on the contrary, reverse counterclockwise, then peelable sheath pipe (2) and convergent divergent channel (3) unlock.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203173704U CN202892618U (en) | 2012-06-29 | 2012-06-29 | Vascular sheath capable of being torn |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203173704U CN202892618U (en) | 2012-06-29 | 2012-06-29 | Vascular sheath capable of being torn |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202892618U true CN202892618U (en) | 2013-04-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012203173704U Expired - Lifetime CN202892618U (en) | 2012-06-29 | 2012-06-29 | Vascular sheath capable of being torn |
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| CN (1) | CN202892618U (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103622770A (en) * | 2013-09-03 | 2014-03-12 | 陈琪 | Disposable fistulization system with external sheath catheter |
| CN103830829A (en) * | 2014-02-21 | 2014-06-04 | 厦门鑫康顺医疗科技有限公司 | Medical lacerable sheath with irrigation and hemostasis functions |
| CN104174107A (en) * | 2013-05-21 | 2014-12-03 | 北京迪玛克医药科技有限公司 | Novel vessel sheath |
| CN104841059A (en) * | 2015-06-12 | 2015-08-19 | 周化庆 | Puncture guiding device capable of tearing and removing sheath |
| CN108815679A (en) * | 2018-07-19 | 2018-11-16 | 首都医科大学附属北京世纪坛医院 | A kind of peelable conduit of following cardiac resynchronization therapy multipurpose adjustable bending |
| CN111084654A (en) * | 2019-12-31 | 2020-05-01 | 山东威高集团医用高分子制品股份有限公司 | Safety blood vessel puncture sheath |
| CN111265758A (en) * | 2020-03-26 | 2020-06-12 | 天津塞科凯尔科技有限公司 | Tear type vascular sheath |
| CN113143416A (en) * | 2021-04-15 | 2021-07-23 | 湖南维迩医疗科技有限公司 | Tearable vascular sheath with hydrophilic coating |
| CN113317841A (en) * | 2021-05-08 | 2021-08-31 | 青岛大学附属医院 | Telescopic reducing bone drill for intervertebral foramen forming |
| CN114129890A (en) * | 2021-12-23 | 2022-03-04 | 苏州心擎医疗技术有限公司 | Intervention assembly of catheter pump, use method of intervention assembly and intervention type blood pump system |
| CN116492571A (en) * | 2023-06-20 | 2023-07-28 | 佛山特种医用导管有限责任公司 | Catheter sheath and method for manufacturing same |
-
2012
- 2012-06-29 CN CN2012203173704U patent/CN202892618U/en not_active Expired - Lifetime
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104174107A (en) * | 2013-05-21 | 2014-12-03 | 北京迪玛克医药科技有限公司 | Novel vessel sheath |
| CN103622770A (en) * | 2013-09-03 | 2014-03-12 | 陈琪 | Disposable fistulization system with external sheath catheter |
| CN103830829A (en) * | 2014-02-21 | 2014-06-04 | 厦门鑫康顺医疗科技有限公司 | Medical lacerable sheath with irrigation and hemostasis functions |
| CN104841059A (en) * | 2015-06-12 | 2015-08-19 | 周化庆 | Puncture guiding device capable of tearing and removing sheath |
| CN104841059B (en) * | 2015-06-12 | 2017-10-13 | 安徽奥弗医疗设备科技股份有限公司 | Can avulsion sheath puncture guide |
| CN108815679A (en) * | 2018-07-19 | 2018-11-16 | 首都医科大学附属北京世纪坛医院 | A kind of peelable conduit of following cardiac resynchronization therapy multipurpose adjustable bending |
| CN111084654A (en) * | 2019-12-31 | 2020-05-01 | 山东威高集团医用高分子制品股份有限公司 | Safety blood vessel puncture sheath |
| CN111265758A (en) * | 2020-03-26 | 2020-06-12 | 天津塞科凯尔科技有限公司 | Tear type vascular sheath |
| CN113143416A (en) * | 2021-04-15 | 2021-07-23 | 湖南维迩医疗科技有限公司 | Tearable vascular sheath with hydrophilic coating |
| CN113317841A (en) * | 2021-05-08 | 2021-08-31 | 青岛大学附属医院 | Telescopic reducing bone drill for intervertebral foramen forming |
| CN114129890A (en) * | 2021-12-23 | 2022-03-04 | 苏州心擎医疗技术有限公司 | Intervention assembly of catheter pump, use method of intervention assembly and intervention type blood pump system |
| CN116492571A (en) * | 2023-06-20 | 2023-07-28 | 佛山特种医用导管有限责任公司 | Catheter sheath and method for manufacturing same |
| CN116492571B (en) * | 2023-06-20 | 2023-10-17 | 佛山特种医用导管有限责任公司 | Catheter sheath and method for manufacturing same |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130424 |