CN104984478A - Vein tear sheath tube - Google Patents
Vein tear sheath tube Download PDFInfo
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- CN104984478A CN104984478A CN201510428950.9A CN201510428950A CN104984478A CN 104984478 A CN104984478 A CN 104984478A CN 201510428950 A CN201510428950 A CN 201510428950A CN 104984478 A CN104984478 A CN 104984478A
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- vein
- tearable
- sheath
- tube
- pulled
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Abstract
The invention provides a vein tear sheath tube comprising a sheath tube body, a tearable outer sleeve tube and an expansion tube disposed in the tearable outer sleeve tube in a sleeved manner. The tip of the expansion tube penetrates through the tearable outer sleeve tube and the length of the expansion tube is greater than that of the tearable outer sleeve tube. One end of the sheath tube body is communicated with one end, far away from the tip of the expansion tube, of the tearable outer sleeve tube and the other end of the sheath tube body is provided with a hemostasis valve. During operations, bleeding and air embolism can be effectively prevented. The side of the sheath tube body is communicated with a branch tube with an infusion nozzle, and contrast agents and medicine can be infused through the branch tube during operations as required. Compared with the conventional tear sheathes used in clinical practice, the vein tear sheath tube can effectively reduce the risks of bleeding and air embolism of patients during operations. The vein tear sheath tube has a preformed shape with a certain angle, so that the success rate of push delivery for some special patients is increased.
Description
Technical field
The present invention relates to medical treatment consumptive materials technical field, particularly relate to a kind of vein pulled sheathing canal.
Background technology
Vein pulled sheathing canal is usually used in accessory heart pacemaker electrode wire and sends into, and a passage with outside in vein blood vessel is set up in effect, helps electrode cable to enter vein blood vessel, then sheath pipe is torn rear taking-up, only stay electrode cable at Ink vessel transfusing.Pulled sheathing canal enters vein from the position of lancet puncture, and general puncture position is subclavian vein.Compare the pin hole of puncture needle, the internal diameter of pulled sheathing canal is comparatively large, and is communicated with outside in pulled sheathing canal, and in art, easily hemorrhage, infection, even causes thrombosis; The pulled sheathing canal of present use, without hemostatic function, when patient's venous pressure is higher, may present spurting hemorrhage, and the internal diameter due to sheath is wide reaches 4mm, and amount of bleeding can be larger; When patient's venous pressure is on the low side, also there is air and enter subclavian vein along sheath pipe, cause the risk of pulmonary infarction, time serious, jeopardize patient vitals.
Therefore, continuing a kind of intravenous pulled sheathing canal of research and development, cannot stop blooding to solve existing pulled sheathing canal, prevent aeroembolism in art, cannot the problem of bolus administration of contrast agent and medicine be the target that those skilled in the art and numerous medical personnels make joint efforts.
Summary of the invention
The invention provides a kind of vein pulled sheathing canal, effectively cannot stop blooding in art to solve existing pulled sheathing canal, prevent aeroembolism, cannot the problem of bolus administration of contrast agent and medicine.
The invention discloses following technical scheme:
Vein pulled sheathing canal, the convergent divergent channel comprising sheath tube body, tearable trocar sheath and be set in described tearable trocar sheath, the tip of described convergent divergent channel is through described tearable trocar sheath, and the length of described convergent divergent channel is greater than the length of described tearable trocar sheath; One end of described sheath tube body is connected with described tearable trocar sheath one end away from described convergent divergent channel tip, and the other end of described sheath tube body is provided with haemostatic valve.
Preferably, the side of described sheath tube body is communicated with arm, and the end of described arm is provided with perfusing hole.
Preferably, described perfusing hole is provided with perfusing hole switch valve.
Preferably, described sheath tube body is provided with tearing groove and two tear handle, described in tear the both sides that symmetric handles is arranged on described tearing groove.
Preferably, the length of described tearable trocar sheath is 15-18cm.
Preferably, the angle of bend of described tearable trocar sheath is 110 °-150 °.
Preferably, the internal diameter of described tearable trocar sheath is 3 ~ 4.5mm.
From above technical scheme, vein pulled sheathing canal provided by the invention, the convergent divergent channel comprising sheath tube body, tearable trocar sheath and be set in described tearable trocar sheath.That is above-mentioned vein pulled sheathing canal is thimble tube double-decker, and skin is tearable trocar sheath, and internal layer is convergent divergent channel, as the term suggests skin is for can tearing and making it come off.One end of described convergent divergent channel is most advanced and sophisticated, and this is most advanced and sophisticated through tearable trocar sheath, and because the length of convergent divergent channel is greater than the length of tearable trocar sheath, so the tip of convergent divergent channel is exposed to outside tearable trocar sheath.The bilayer sleeve of this spline structure is connected with sheath tube body, and one end of sheath tube body is connected with tearable trocar sheath that end away from described convergent divergent channel tip, and that is the tip of convergent divergent channel is first through sheath tube body, then through tearable trocar sheath.The service time of vein pulled sheathing canal provided by the invention in art, after venipuncture successfully to be punctured for clavicle underlying vein and guide wire is sent into vein smoothly, now guide wire is pierced in the internal layer convergent divergent channel of vein pulled sheathing canal, vein pulled sheathing canal is allowed to walk along the guide of guide wire, the tip being positioned at convergent divergent channel is foremost more tapering, expansible venipuncture mouth, convergent divergent channel tip is sent in the process of blood vessel and is progressively expanded puncturing hole, is convenient to the more blunt tearable trocar sheath in rear end and sends into blood vessel.Then guide wire and convergent divergent channel is extracted, only leave tearable trocar sheath, after sending into pacemaker electrode wire to heart along tearable trocar sheath, because pacemaker electrode wire tail is thicker, tearable trocar sheath cannot be deviate from through it, extracts so torn by tearable trocar sheath.From above-mentioned through, after convergent divergent channel is expanded and will be sent into tearable trocar sheath, just be communicated with vein blood vessel in tearable trocar sheath, and the internal diameter of tearable trocar sheath is larger, 4mm can be reached, the blood flow so flow in tearable trocar sheath is also just more, hemostasis facility is not with by existing sheath of tearing, patient's bleeding risk can be increased undoubtedly, especially for the patient that vein pressure is high, amount of bleeding may be larger, and larger passage also communicates with the external world, also there is air and enter subclavian vein along tearable trocar sheath, cause the risk of pulmonary infarction.Just for these reasons, vein pulled sheathing canal provided by the invention is provided with haemostatic valve at the other end of described sheath tube body, the problem of the intraoperative hemorrhage effectively solved.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing used required for embodiment is briefly described, apparently, for those of ordinary skills, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of vein pulled sheathing canal provided by the invention.
Wherein:
1-tearable trocar sheath, 2-convergent divergent channel, 3-sheath tube body, 301-tears handle, 302-tearing groove, 4-haemostatic valve, 5-arm, 6-perfusing hole, 6A-perfusing hole switch valve.
Detailed description of the invention
The invention provides a kind of vein pulled sheathing canal, effectively cannot stop blooding in art to solve existing pulled sheathing canal, prevent aeroembolism, cannot the problem of bolus administration of contrast agent and medicine.
Technical scheme in this explanation is understood better in order to make those skilled in the art person, below in conjunction with the accompanying drawing in this explanation embodiment, technical scheme in this explanation embodiment is clearly and completely described, obviously, described embodiment is only that this illustrates a part of embodiment, instead of whole embodiments.Based on the embodiment in this explanation, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all should belong to the scope of this explanation protection.
Please refer to Fig. 1, Fig. 1 is the structural representation of vein pulled sheathing canal provided by the invention.As can be seen from Fig. 1, vein pulled sheathing canal, the convergent divergent channel 2 comprising sheath tube body 3, tearable trocar sheath 1 and be set in described tearable trocar sheath 1.That is above-mentioned pulled sheathing canal is thimble tube double-decker, skin is tearable trocar sheath 1, internal layer is convergent divergent channel 2, as the term suggests it is made to come off outer for can tear, internal layer is for expanding, and in conjunction with its purposes, convergent divergent channel 2 is for dilated penetration mouth, after expansion, object is sent in vein by tearable trocar sheath 1.As can be seen from Figure 1, the front end of convergent divergent channel 2 is more tapering, exactly because this tapering structure just makes it have the effect of expansion.The tip of convergent divergent channel 2 is through described tearable trocar sheath 1, and the length of described convergent divergent channel 2 is greater than the length of described tearable trocar sheath 1, so the tip of convergent divergent channel 2 is exposed to tearable trocar sheath outer 1.The work process of vein pulled sheathing canal provided by the invention is described below in conjunction with embodiment one.
Embodiment one
The service time of vein pulled sheathing canal in art that the present embodiment provides, after venipuncture successfully to be punctured for clavicle underlying vein and guide wire is sent into vein smoothly, now guide wire is pierced in the internal layer convergent divergent channel 2 of vein pulled sheathing canal, vein pulled sheathing canal is allowed to walk along the guide of guide wire, the tip being positioned at convergent divergent channel 2 is foremost more tapering, expansible venipuncture mouth, the tip of convergent divergent channel 2 is sent in the process of blood vessel and is progressively expanded puncturing hole, and the tearable trocar sheath 1 being convenient to rear end more blunt sends into blood vessel.Then guide wire and convergent divergent channel 2 is extracted, only leave tearable trocar sheath 1, after sending into pacemaker electrode wire to heart along tearable trocar sheath 1, because pacemaker electrode wire tail is thicker, tearable trocar sheath 1 cannot be deviate from through it, extracts so torn by tearable trocar sheath 1.From above-mentioned through, after convergent divergent channel 2 is expanded and will be sent into tearable trocar sheath 1, be just communicated with vein blood vessel in tearable trocar sheath 1, and the internal diameter of tearable trocar sheath 1 is larger, 4mm can be reached, the blood flow so flow in tearable trocar sheath 1 is also just more, and hemostasis facility is not with by existing sheath of tearing, and can increase patient's bleeding risk undoubtedly, especially for the patient that vein pressure is high, amount of bleeding is larger, may present spurting hemorrhage, very dangerous.And larger passage also communicates with the external world, when patient's venous pressure is on the low side, air easily enters subclavian vein along tearable trocar sheath 1, causes the risk of pulmonary infarction.Just for these reasons, in vein pulled sheathing canal provided by the invention, one end of above-mentioned sheath tube body 3 is connected with described tearable trocar sheath 1 one end away from described convergent divergent channel 2 tip, and the other end of described sheath tube body 3 is provided with haemostatic valve 4.When blood flow is after tearable trocar sheath 1 flow to sheath tube body 3 end, the intraoperative hemorrhage that haemostatic valve 4 can solve effectively and the problem that obstruct outside air enters.
We know, when blood flow change suddenly or foreign body (puncture needle, guide wire, tear sheath etc.) intravasation time, the risk of thrombosis just adds.Generally for and prevent thrombosis, the mode to intra-arterial infusion heparin saline can be adopted, and existing sheath of tearing is not accomplished.Below in conjunction with embodiment two, the feature of vein pulled sheathing canal provided by the invention in this is described.
Embodiment two
In order to solve the problem of above-mentioned thrombosis, the side of above-mentioned sheath tube body 3 is communicated with arm 5, and the end of described arm 5 is provided with perfusing hole 6.Inject heparin saline from perfusing hole 6, entered in tearable trocar sheath 1 by arm 5, thus inject in vein, play the effect of anti-tampon.Moreover perfusing hole 6 can also to intravenous injection contrast agent.We know, puncture successfully, are first guide wire is delivered to postcava along puncture needle, then will tear sheath along guide wire through superior vena cava to postcava, finally along tearable trocar sheath 1, pacemaker electrode wire is delivered in right atrium chamber.And between patient, there is individual variation, when the traveling of patient's subclavian vein blood vessel exists bending, narrow even distortion angulation, tear the resistance that sheath pushes ahead very large, usually cause subclavian vein to tear if be forced through.Now, just can by vein pulled sheathing canal side direction provided by the invention with perfusing hole 6 pour into contrast agent, understand distal vessels anatomical structure and traveling, operation proceeded.The present embodiment in conjunction with the embodiments one, can provide a kind of can prevent hemorrhage and aeroembolism, can the intravenous pulled sheathing canal of free medicine injection.It should be noted that, described perfusing hole 6 is provided with perfusing hole switch valve 6A, enter vein at pulled sheathing canal and push in the process of electrode cable, above-mentioned perfusing hole switch valve 6A closes, even if therefore arm 5 is connected with tearable trocar sheath 1, also can not cause hemorrhage, when needs are injected from perfusing hole 6, this switch valve be opened.
Same, be also tear sheath based on solution to push ahead the problem be hampered, vein pulled sheathing canal provided by the invention is the moulding in advance of the angle of bend of 110 °-150 °.And the length of tearable trocar sheath 1 is increased to 15-18cm.Be not only applicable to general patient, be more suitable for the patient of subclavian vein buckling of vessel angulation, the vein pulled sheathing canal of above-mentioned improvement, more easily directly strides across angulation crooked position and venous valve, thus passes through passage smoothly for electrode cable enters right atrium chamber smoothly.
According to the work process of vein pulled sheathing canal provided by the invention, after electrode cable enters vein, tearable outer sheath needs to peel off.Below in conjunction with embodiment three, this stripping process is described.
Embodiment three
On the basis of embodiment one or two, described sheath tube body 3 is provided with tearing groove 302 and two tear handle 301, described in tear the both sides that handle 301 is symmetricly set on described tearing groove 302.Tearing groove 302 refers to there is place's groove on sheath tube body 3, when tear in the opposite direction these tearing groove 302 both sides tear handle 301 time, tearing groove 302, as the weak spot on mechanics, makes to tear main body and splits from here, forms breach.And pulled sheathing canal is connected with tearable trocar sheath 1, above-mentioned breach place is as most advanced and sophisticated crackle, stress centralization, continue ftracture forward and make breach constantly become large, until when tearable trocar sheath 1 is from the part thicker through pacemaker electrode wire end, the stripping that vein tears sheath just completes, and this also tears the reason that sheath obtains this name just.
The above is only the specific embodiment of the present invention, those skilled in the art is understood or realizes the present invention.To be apparent to one skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
The above is only the specific embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (7)
1. vein pulled sheathing canal, it is characterized in that, the convergent divergent channel (2) comprising sheath tube body (3), tearable trocar sheath (1) and be set in described tearable trocar sheath (1), the tip of described convergent divergent channel (2) is through described tearable trocar sheath (1), and the length of described convergent divergent channel (2) is greater than the length of described tearable trocar sheath (1); One end of described sheath tube body (3) is connected away from one end that described convergent divergent channel (2) is most advanced and sophisticated with described tearable trocar sheath (1), and the other end of described sheath tube body (3) is provided with haemostatic valve (4).
2. vein pulled sheathing canal according to claim 1, is characterized in that, the side of described sheath tube body (3) is communicated with arm (5), and the end of described arm (5) is provided with perfusing hole (6).
3. vein pulled sheathing canal according to claim 2, is characterized in that, described perfusing hole (6) is provided with perfusing hole switch valve (6A).
4. vein pulled sheathing canal according to claim 1, is characterized in that, described sheath tube body (3) is provided with tearing groove (302) and two tear handle (301), described in tear the both sides that handle (301) is symmetricly set on described tearing groove (302).
5. vein pulled sheathing canal according to claim 1, is characterized in that, the length of described tearable trocar sheath (1) is 15-18cm.
6. vein pulled sheathing canal according to claim 1, is characterized in that, the angle of bend of described tearable trocar sheath (1) is 110 °-150 °.
7. vein pulled sheathing canal according to claim 1, is characterized in that, the internal diameter of described tearable trocar sheath (1) is 3 ~ 4.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510428950.9A CN104984478A (en) | 2015-07-21 | 2015-07-21 | Vein tear sheath tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510428950.9A CN104984478A (en) | 2015-07-21 | 2015-07-21 | Vein tear sheath tube |
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| Publication Number | Publication Date |
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| CN104984478A true CN104984478A (en) | 2015-10-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510428950.9A Pending CN104984478A (en) | 2015-07-21 | 2015-07-21 | Vein tear sheath tube |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110368587A (en) * | 2019-08-28 | 2019-10-25 | 复旦大学附属中山医院 | It can carry out the conductive beam Pacing lead delivering sheath of Electrophysiological mapping |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103957985A (en) * | 2011-10-06 | 2014-07-30 | 贝克顿·迪金森公司 | An intravenous catheter with duckbill valve |
| CN204121575U (en) * | 2014-02-21 | 2015-01-28 | 厦门鑫康顺医疗科技有限公司 | A kind of medical belt rinses, the tearable vaginal of hemostatic function |
| CN204972693U (en) * | 2015-07-21 | 2016-01-20 | 中国人民解放军第三军医大学第二附属医院 | Sheath pipe is torn to vein |
-
2015
- 2015-07-21 CN CN201510428950.9A patent/CN104984478A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103957985A (en) * | 2011-10-06 | 2014-07-30 | 贝克顿·迪金森公司 | An intravenous catheter with duckbill valve |
| CN204121575U (en) * | 2014-02-21 | 2015-01-28 | 厦门鑫康顺医疗科技有限公司 | A kind of medical belt rinses, the tearable vaginal of hemostatic function |
| CN204972693U (en) * | 2015-07-21 | 2016-01-20 | 中国人民解放军第三军医大学第二附属医院 | Sheath pipe is torn to vein |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110368587A (en) * | 2019-08-28 | 2019-10-25 | 复旦大学附属中山医院 | It can carry out the conductive beam Pacing lead delivering sheath of Electrophysiological mapping |
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Application publication date: 20151021 |