A kind of intravascular hemostasis occluding catheter
Technical field
The present invention relates to a kind of intravascular hemostasis occluding catheter, belong to medical instruments field.
Background technology
Heart is a most important organ in vertebrate body, and major function is to provide pressure for blood flow,
Blood operation is to body various pieces.Action of the heart is to promote blood flow, and sufficient CBF is provided to organ, tissue,
To supply oxygen and various nutriments, and take away the end-product of metabolism(Such as carbon dioxide, inorganic salts, urea and uric acid), make
Cell maintains normal metabolism and function.In cardiovascular injuries operation, need to block a certain section of blood vessel often, so as to
Position adjacent blood vessel is blocked to be operated to open.Existing blocking-up method is mainly hindered using aorta clamps
It is disconnected.But cardiovascular injuries operation usually needs longer operating time, if much time using aorta clamps presss from both sides for a long time
Tight sustainer carries out bloodstream blocking, and certain damage can be caused to aortic blood pipe outer wall.So will be by rule in surgical procedure
Fixed time interval unclamps aorta clamps, unclamps mouth in aorta clamps, sustainer has blood outflow, causes hand intraoperative blood loss
The increase of amount, adds operation risk.And it can pour in substantial amounts of blood after aorta clamps is unclamped, in operating field and block operation
Open country, at this moment it is to need to carry out operation of sucking blood, it is cumbersome, operating time is extended, further increases operation risk.
The content of the invention
In view of the deficienciess of the prior art, the technical problem to be solved by the invention is to provide a kind of intravascular hemostasis
With occluding catheter, occluding catheter is inserted intravascular, block blood to obtain clearly surgical field of view by occluding catheter.Resistance
In disconnected intravascular epidural catheter placement, vascular wall will not be caused to damage.
In order to solve the above technical problems, the present invention adopts the technical scheme that, and a kind of intravascular hemostasis occluding catheter, bag
Stand tube and internal fixing axle are included, internal fixing axle is arranged in stand tube and set along stent tube length bearing of trend;It is described
Inside one end of stand tube is provided with a stator, and the lateral edges of stator are fixedly connected with the inwall of stand tube, stator
On be provided with some through holes;The front end of the stand tube is cone, and it is solid that annular is fixedly connected with the rear end side wall of stand tube
Stator;The rear end of the stand tube is internally provided with plug, and the end of plug is fixedly connected with plug position-arresting disk, plug position-arresting disk
Contacted with stand tube rear end face, the outer wall of plug and the rear end inwall compressive contact of stand tube, the front end of internal fixing axle is with consolidating
Stator is fixedly connected, and the rear end of internal fixing axle is threadedly coupled through plug and with plug;It is provided with the support inside pipe wall
Medicine cavity, medicine cavity is interior to be filled with anticoagulation medicine, some medicament slow release holes is provided with the side wall of medicine cavity, medicament slow release covers on hole
There are release membranes.
In the technical scheme of the application, there is provided stand tube and internal fixing axle.In surgical procedure, stand tube is inserted
In vessel end, blood flow is flowed into stand tube, is continued to flow out by plug blocking blood flow.In hemostasis blood is inserted with occluding catheter
After in pipe, plug is can be manually rotated, due to the limitation of plug position-arresting disk, the relative position of plug and stand tube is fixed, so
After rotating plug, internal fixing axle pulls stator to stand tube tail end direction, and then by the front end of stand tube to stand tube
Rear extreme direction pull, occur in the middle part of stand tube yield deformation outwards expand it is curved, after the yield deformation of such stand tube
Outer wall can prevent blood flow from being flowed out from the gap of stand tube and blood vessel with blood vessel compressive contact.And due to stand tube
Yield deformation after outer wall can add stand tube and the frictional force of blood vessel with blood vessel compressive contact, hemostasis is used
The position of occluding catheter in the blood vessels is fixed, in surgical procedure, will not because of muscular tremor and caused by device shift, improving makes
Use reliability.Anticoagulation medicine in medicine cavity is penetrated into blood by medicament slow release hole, release membranes, is prevented because of blood clotting shape
Into thrombus.
Optimize, above-mentioned intravascular hemostasis occluding catheter, some inside are connected with the side wall of the internal fixing axle
Cradling piece, the both ends of internal stent bar are fixedly connected with internal fixing axle side wall, stator upper surface respectively.
Internal stent bar adds the bonding strength of internal fixing axle and stator, and internal fixing axle is by stator to support
When pipe tail end direction pulls, the connection of internal fixing axle and stator will not be pulled off.
Optimization, above-mentioned intravascular hemostasis occluding catheter, the stand tube is by some flexible tube sections and some hard tube section groups
Into hard tube section is arranged at the both ends of flexible tube section;The both ends of the flexible tube section are respectively arranged with the step projection of annular, hard tube section
Both ends are respectively arranged with the stepped recesses with step protrusions match, and step projection is threadedly coupled with stepped recesses.
In the technical scheme of the application, stand tube is arranged to the form by flexible tube section and the assembling of hard tube section, it is solid internally
Dead axle by stator to stand tube tail end direction pull when, flexible tube section is more prone to occur yield deformation and outwards to expand.
Optimize, above-mentioned intravascular hemostasis occluding catheter, resilient supporting unit is provided with the flexible tube section;The bullet
Property supporting arrangement include two internal support bars and two elastic supporting bars, internal support bar is default to be placed in flexible tube section side wall,
Two internal support bars are oppositely arranged;The both ends of the elastic supporting bar are fixedly connected with an internal support bar respectively.
In order to prevent flexible tube section flexural deformation into stand tube in yield deformation, it is provided with the technical scheme of the application
Resilient supporting unit, when hemostasis is in original state with occluding catheter, the both ends of elastic supporting bar by flexible tube section outer wall and
The extruding of two internal support bar inner support panels is in the elastic deformation compressed.Internally fixing axle by stator to
When stand tube tail end direction pulls, flexible tube section outer wall reduces for the pressure at the both ends of elastic supporting bar, and elastic supporting bar is in bullet
Property restoring force in the presence of by outside the inside support bar stand tube at both ends direction support so that flexible tube section in yield deformation to
Stand tube outside direction occurs bending and deformation.
Optimization, above-mentioned intravascular hemostasis occluding catheter, the internal support bar is arc nylon sheet, and two inside are propped up
The arc opening direction of stay is oppositely arranged.
Internal support bar, which is arranged to arc, can increase the contact area of internal support bar and flexible tube section, reduce internal support
The footprint pressure of bar and flexible tube section, prevent because footprint pressure is excessive and so that internal support bar punctures flexible tube section.
Optimization, above-mentioned intravascular hemostasis occluding catheter, the elastic supporting bar for arc nylon elastic bar, two
The arc opening direction of elastic supporting bar is oppositely arranged.
Elastic supporting bar is arranged into arc can facilitate elastic supporting bar to be occured bending and deformation after being pressurized.
Optimization, above-mentioned intravascular hemostasis occluding catheter, the flexible tube section is medical grade silicon rubber flexible pipe, and hard tube section is doctor
Use polylactic-acid tube.
Optimization, above-mentioned intravascular hemostasis occluding catheter, the release membranes are the non-woven fabrics of the pre- dipped hydrosol, are sustained
Film and the gluing fixation of medicine cavity inwall.
After blood is entered in stand tube, the hydrosol presoaked in release membranes is dissolved in blood, and anticoagulation medicine can
To pass through release membranes.Anticoagulation medicine can select heparin.
Optimize, above-mentioned intravascular hemostasis occluding catheter, be socketed with reinforcement fixed cover in the internal fixing axle, strengthen
Fixed cover is arranged in plug and coordinated with the fixed axle thread in inside;Some bar shapeds are provided with the reinforcement fixed cover outer surface
Projection, strip bulge are set along fixed cover length bearing of trend is strengthened.
In order to improve sealing, the plug in the technical scheme of the application can use medical grade rubber, but medical grade rubber
Quality is softer, it is difficult to ensure that the firmness of threaded connection if being threadedly coupled using medical grade rubber with internal fixing axle.This Shen
It is provided with technical scheme please, in plug and strengthens fixed cover, the position for strengthening fixed cover is fixed by adhesive tape, it is solid by strengthening
Fixed set is threadedly coupled with internal fixing axle, ensure that plug and the firmness of the threaded connection of internal fixing axle.Strengthen fixed cover
Medical poly-lactic acid material or medical nylon material can be used with internal fixing axle.
Optimize, above-mentioned intravascular hemostasis occluding catheter, some capillary through holes, capillary through holes are provided with the plug
Through plug.
When the intravascular hyperpiesia blood medicine decompression being blocked, medical puncture needle is passed through into the capillary through holes on plug,
Allow the outflow that blood flow is a small amount of.Default capillary through holes can be formed using medical puncture needle through plug, due to plug
Using quality of rubber materials, can be restored to the original state after piercing by the internal stress of rubber.But reserved capillary through holes can facilitate
The puncture again of medical puncture needle.
The advantage of the invention is that:In the technical scheme of the application, there is provided stand tube and internal fixing axle.Performing the operation
Cheng Zhong, stand tube is inserted in vessel end, blood flow is flowed into stand tube, is continued to flow out by plug blocking blood flow.Only
Blood with occluding catheter insertion it is intravascular after, can be manually rotated plug, due to the limitation of plug position-arresting disk, plug and the phase of stand tube
Position is fixed, so after plug is rotated, internal fixing axle pulls stator to stand tube tail end direction, and then by support
The front end of pipe pulls to the rear extreme direction of stand tube, and yield deformation occurs in the middle part of stand tube and outwards expands curved, such support
Outer wall after the yield deformation of pipe can prevent blood flow clearance flow between stand tube and blood vessel with blood vessel compressive contact
Go out.And due to the outer wall after the yield deformation of stand tube can with blood vessel compressive contact, add stand tube with it is intravascular
The frictional force of wall, hemostasis is fixed with the position of occluding catheter in the blood vessels, in surgical procedure, will not because of muscular tremor and caused by
Device shifts, and improves use reliability.Anticoagulation medicine in medicine cavity penetrates into blood by medicament slow release hole, release membranes
In, prevent the thrombus formed by blood clotting.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention;
Fig. 2 is Fig. 1 A-A sectional views.
Embodiment
The technical characterstic of the present invention is expanded on further with specific embodiment below in conjunction with the accompanying drawings.
Embodiment
The present invention is a kind of intravascular hemostasis occluding catheter, including stand tube 1 and internal fixing axle 2, internal fixing axle 2
It is arranged in stand tube 1 and is set along stent tube length bearing of trend;Inside one end of the stand tube 1 is provided with a fixation
Piece 3, the lateral edges of stator 3 are fixedly connected with the inwall of stand tube 1, and some through holes 4 are provided with stator 3;The support
The front end of pipe 1 is cone, and annular stator 5 is fixedly connected with the rear end side wall of stand tube 1;The rear end of the stand tube 1
Plug 6 is internally provided with, the end of plug 6 is fixedly connected with plug position-arresting disk 20, plug position-arresting disk 20 and the rear end face of stand tube 1
Contact, the outer wall of plug 6 and the rear end inwall compressive contact of stand tube 1, the front end of internal fixing axle 2 is fixed with stator 3 to be connected
Connect, the rear end of internal fixing axle 2 is threadedly coupled through plug 6 and with plug 6;Medicine cavity 7 is provided with the inwall of stand tube 1,
Anticoagulation medicine is filled with medicine cavity 7, some medicament slow release holes 8 are provided with the side wall of medicine cavity 7, are covered on medicament slow release hole 8
There are release membranes 9.
In the technical scheme of the application, there is provided stand tube 1 and internal fixing axle 2.In surgical procedure, by stand tube 1
Insert in vessel end, blood flow is flowed into stand tube 1, is continued to flow out by plug blocking blood flow.In hemostasis occluding catheter
Insert it is intravascular after, can be manually rotated plug 6, due to the limitation of plug position-arresting disk 20, plug 6 and the relative position of stand tube 1
It is fixed, so after plug 6 rotate, internal fixing axle 2 by stator 3 to the pulling of the tail end direction of stand tube 1, and then by stand tube
1 front end pulls to the rear extreme direction of stand tube 1, and the middle part of stand tube 1 occurs yield deformation and outwards expands curved, such support
Outer wall after the yield deformation of pipe 1 can prevent blood flow from clearance flow between stand tube 1 and blood vessel with blood vessel compressive contact
Go out.And because the outer wall after the yield deformation of stand tube 1 can add stand tube 1 and blood vessel with blood vessel compressive contact
The frictional force of inwall, hemostasis is fixed with the position of occluding catheter in the blood vessels, in surgical procedure, will not be made because of muscular tremor
Shifted into device, improve use reliability.Anticoagulation medicine in medicine cavity 7 is penetrated into by medicament slow release hole 8, release membranes 9
In blood, the thrombus formed by blood clotting is prevented.
Some internal stent bars 10, the both ends difference of internal stent bar 10 are connected with the side wall of the internal fixing axle 2
It is fixedly connected with the internal side wall of fixing axle 2, the upper surface of stator 3.
Internal stent bar 10 adds the bonding strength of internal fixing axle 2 and stator 3, and internal fixing axle 2 is by stator 3
When being pulled to the tail end direction of stand tube 1, internal fixing axle 2 and the connection of stator 3 will not be pulled off.
The stand tube 1 is made up of some flexible tube sections 11 and some hard tube sections 12, and hard tube section 12 is arranged at flexible tube section 11
Both ends;The both ends of the flexible tube section 11 are respectively arranged with the step projection 13 of annular, the both ends of hard tube section 12 be respectively arranged with
The stepped recesses 14 that step projection 13 coordinates, step projection 13 are threadedly coupled with stepped recesses 14.
In the technical scheme of the application, form that stand tube 1 is arranged to be assembled by flexible tube section 11 and hard tube section 12, inside
Portion's fixing axle 2 by stator 3 to the tail end direction of stand tube 1 pull when, flexible tube section 11 is more prone to that yield deformation and outside occurs
Expansion.
Resilient supporting unit is provided with the flexible tube section 11;The resilient supporting unit includes two internal support bars 15
With two elastic supporting bars 16, internal support bar 15 is default to be placed in the side wall of flexible tube section 11, and two internal support bars 15 are relative to be set
Put;The both ends of the elastic supporting bar 16 are fixedly connected with an internal support bar 15 respectively.
In order to prevent the flexural deformation into stand tube 1 in yield deformation of flexible tube section 11, set in the technical scheme of the application
Resilient supporting unit is put, when hemostasis is in original state with occluding catheter, the both ends of elastic supporting bar 16 are by flexible tube section
The extruding of 11 outer walls and two internal inner support panels of support bar 15 is in the elastic deformation compressed.Fixing axle internally
2 by stator 3 to the tail end direction of stand tube 1 pull when, pressure drop of the outer wall of flexible tube section 11 for the both ends of elastic supporting bar 16
It is low, direction support of the elastic supporting bar 16 outside the stand tube 1 of inside support bar 15 in the presence of elastic-restoring force by both ends, make
Flexible tube section 11 is obtained to occur bending and deformation to the outside direction of stand tube 1 in yield deformation.
The internal support bar 15 is arc nylon sheet, and the arc opening direction of two internal support bars 15 is oppositely arranged.
Internal support bar 15, which is arranged to arc, can increase the contact area of internal support bar 15 and flexible tube section 11, in reduction
The footprint pressure of portion's support bar 15 and flexible tube section 11, prevent because footprint pressure is excessive and support bar 15 punctures flexible tube section inside causing
11。
The elastic supporting bar 16 is the nylon elastic bar of arc, and the arc opening direction of two elastic supporting bars 16 is relative
Set.
Elastic supporting bar 16 is arranged into arc can facilitate elastic supporting bar 16 to be occured bending and deformation after being pressurized.
The flexible tube section 11 is medical grade silicon rubber flexible pipe, and hard tube section 12 is medical polylactic-acid tube.The release membranes 9 are preimpregnation
Cross the non-woven fabrics of the hydrosol, release membranes 9 and the gluing fixation of the inwall of medicine cavity 7.
After blood is entered in stand tube 1, the hydrosol presoaked in release membranes 9 is dissolved in blood, anticoagulation medicine
Release membranes 9 can be passed through.Anticoagulation medicine can select heparin.
Be socketed with the internal fixing axle 2 and strengthen fixed cover 17, strengthen fixed cover 17 be arranged in plug 6 and with inside
The screw thread of fixing axle 2 coordinates;It is provided with some strip bulges 18 on reinforcement fixed cover 17 outer surface, strip bulge 18 is along reinforcement
The length bearing of trend of fixed cover 17 is set.
In order to improve sealing, the plug 6 in the technical scheme of the application can use medical grade rubber, but medical grade rubber
Quality is softer, it is difficult to ensure that the firmness of threaded connection if being threadedly coupled using medical grade rubber with internal fixing axle 2.This Shen
It is provided with technical scheme please, in plug 6 and strengthens fixed cover 17, the position for strengthening fixed cover 17 is fixed by adhesive tape, is passed through
Strengthen fixed cover 17 to be threadedly coupled with internal fixing axle 2, ensure that plug 6 and the firmness of the threaded connection of internal fixing axle 2.
Strengthen fixed cover 17 and medical poly-lactic acid material or medical nylon material can be used in internal fixing axle 2.
Some capillary through holes 19 are provided with the plug 6, capillary through holes 19 run through plug 6.
When the intravascular hyperpiesia blood medicine decompression being blocked, medical puncture needle is passed through into the capillary through holes on plug 6
19 so that the outflow that blood flow can be a small amount of.Default capillary through holes 19 can be formed using medical puncture needle through plug 6, by
Quality of rubber materials is used in plug 6, can be restored to the original state after piercing by the internal stress of rubber.But reserved capillary through holes 19
The puncture again of medical puncture needle can be facilitated.
Certainly, it is limitation of the present invention that described above, which is not, and the present invention is also not limited to the example above, the art
Those of ordinary skill, in the essential scope of the present invention, the variations, modifications, additions or substitutions made, should all belong to the present invention
Protection domain.