CN208808748U - A kind of valve clamping system - Google Patents
A kind of valve clamping system Download PDFInfo
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- CN208808748U CN208808748U CN201721404701.7U CN201721404701U CN208808748U CN 208808748 U CN208808748 U CN 208808748U CN 201721404701 U CN201721404701 U CN 201721404701U CN 208808748 U CN208808748 U CN 208808748U
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- 238000012546 transfer Methods 0.000 abstract description 4
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- 206010027727 Mitral valve incompetence Diseases 0.000 description 10
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- Prostheses (AREA)
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model discloses a kind of valve clamping systems, including operating member, transfer unit, functional component and implanted component, the clamping system can utilize easy transportation system that valve clamping machine is accurately delivered to clamping position, quick, effective, safety and at low cost completion valve clamping.
Description
Technical field
The utility model relates to a kind of valve clamping systems more particularly to a kind of for treating the valve of heart valve regurgitation
Clamping system.
Background technique
Bicuspid valve is attached to the two panels valve (as shown in Figure 1) of left atrioventricular orifice periphery, is connected in papillary muscle by means of chordae tendineae, there is prevention
The blood of left ventricle flows back to the effect of atrium sinistrum.
Mitral regurgitation (MR) is organic or function occurs due to mitral valve leaflet and its dependency structure to sexually revise to lead to two
Leaf coincide bad before and after cusp, and blood flow flows backward to atrium sinistrum from left ventricle, causes a series of pathophysiological change.Serious MR meeting
Cause left room to expand, eventually leads to left systolic heart failure obstacle and heart failure, while left atrial pressure also increases because of reflux
Greatly, Left atrium enlargement, atrial fibrillation and pulmonary hypertension are easy to cause.MR prognosis is poor, has symptom and non-row operator annual death rate
5% or so, and there is serious 5 annual death rate of heart failure person up to 60%.Meanwhile MR is also one of most common heart disease.According to system
Meter, the disease incidence more than 65 and 75 years old crowd is respectively 6.4% and 9.3%.With economic society development and population it is old
Age, the disease incidence of mitral regurgitation are in the situation obviously risen.
Clinical test shows that drug therapy can only improve patient symptom, and cannot extend survival of patients or opportunity of operation.Outside
Section's surgical valve reparation or displacement technique are considered as the standard treatments of the disease, have been shown to reduction of patient symptom and
Extend its service life.However, surgical operation has the shortcomings that wound is big, postoperative pain is obvious, it is slow to restore, risk is high, in addition, some
There are out chest medical history, poor heart function at advanced age and merge the infull patient of multi-organ function often since surgical risk is refused greatly
Exhausted surgical operation.Therefore, researching and developing minimally invasive, low-risk, treatment MR intervention therapeutic apparatus has great social profit and city
Field demand.In recent years, as valve interventional therapeutic technique obtains breakthrough development, the intervention apparatus of MR has become the country at present
One of the emphasis direction of outer cardiovascular devices research and development.
Wherein, the valve clamp instrument that foundation surgical valve edge researches and develops edge suturing skill principle is because of safety
Height, technical principle are simple, feasibility is big at present most by certainly.Surgery valve edge is as shown in the figure to edge suturing skill principle: two points
When valve reflux, two leaflet edges of paradoxical expansion can not pairing closing there is gap, cause the blood flow of left ventricle to return from gap
Go back to atrium sinistrum；Surgery edge sutures by two leaflet edge intermediate point sutures of bicuspid valve, so that when paradoxical expansion between leaflet edge
Gap becomes two apertures by a macropore, so that mitral regurgitation (Fig. 2 a) is reduced, and when diastole mitral valve open
Flow into left ventricle blood flow again unaffected (Fig. 2 b).The minimally invasive intervention apparatus of unique granted listing treatment MR is Evalve in the world
The MitraClip of company is exactly a kind of valve jaw device.But it contains complicated control system, the cost of production and production
Also very high；The instrument needs finally to reach left ventricle through vein, atrium dextrum, atrial septum, atrium sinistrum during operation, and it is again long that road enters approach
Many places bending again, therefore surgical procedure is extremely complex, and doctor needs fine tuning transportation system camber repeatedly, direction, horizontal position, hangs down
Straight depth can just clamp valve after reaching ideal position, therefore doctor is frequently necessary to take a long time, and could complete a hand
Art, this disadvantage are denounced deeply.
Therefore, those skilled in the art is dedicated to developing a set of valve clamping system, using easy transportation system
Valve clamping machine is accurately delivered to clamping position, quick, effective, safety and at low cost completion valve clamping.
Utility model content
In view of the above drawbacks of the prior art, the technical problem to be solved by the utility model is to provide a kind of valve folders
Valve clamping machine is accurately delivered to clamping position using easy transportation system by collaboration system, it is quick, effective, safe and it is low at
It is local to complete valve clamping.Valve clamping system disclosed by the utility model includes:
Catheter sheath with first through hole；
Expander with the second through-hole, second through-hole and its outer wall are able to enter the first through hole, and described
Two through-hole internal diameters are suitable for penetrating seal wire, and the axial length of second through-hole is greater than the axial length of the first through hole；
Across valve device, across the valve device include that outer diameter is less than the shaft of the first through hole internal diameter and has elasticity
Across valve head, across the valve head is set to described shaft one end, and the shaft length is greater than the axial length of the first through hole；
Conveyer, described conveyer one end are provided with delivery pipe, and the delivery pipe has third through-hole, and the delivery pipe
One end is detachably connected with close ring, and the axial length of the delivery pipe is greater than the axial length of the catheter sheath；
Push rod, at least part push rod is able to enter the third through-hole, and it is logical to be able to enter the third
Rod segment length in hole is greater than the axial length of the third through-hole；
Loader, the loader have fourth hole, and the fourth hole is suitable for accommodating at least part conveying
The outer wall dimension of pipe, at least part fourth hole is able to enter in the first through hole；
First nip part and the second nip part, first nip part have at least two first clamping arms, institute
State the second clamping arm that the second nip part has corresponding number, corresponding second folder of each first clamping arm
Closing arm can be combined to a pair of of fixture；First nip part is suitable for being detachably connected with the push rod distal end, and described second
Nip part is suitable for being slidably connected with the push rod, and the close ring distal end is suitable for removable with second nip part proximal end
Unload connection.
Further, further include puncture sheath, the puncture sheath have internal diameter be suitable for accommodating the shaft and it is described across
Valve head, outer diameter are adapted to enter into the pipeline section of the first through hole.
Further, the conveyer further includes Y type haemostatic valve, the Y type haemostatic valve be set to the conveyer different from
One end of the delivery pipe.
Further, when the expander is completely into the first through hole, the first through hole 3-8 cm can be stretched out.
Further, it is seamlessly transitted between the expander tube body and the catheter sheath tube wall.
Further, the conveyer further includes operation handle, and the delivery pipe and the closure ring are tied using silk thread
Bundle mode is fixed at the operation handle.
Further, second nip part and the push rod can occur at a distance from opposite slide as 15-45 mm.
Further, the loader length is 5-15cm, and the delivery tube is 45-55cm, and the pusher is long
Degree is 80-90cm.
Further, the close ring distal end is respectively arranged with the interior spiral shell worked in coordination with second nip part proximal end
Line and external screw thread, second nip part have the fixation tooth with the screw-internal thread fit.
Further, further include storage box, for place completely the catheter sheath, the expander, across the valve device,
The conveyer, the loader and the push rod.
In the utility model, the concept of " proximal end " " distal end " is referred both to during valve surgery, according to it usually used
Judge in the process with the relative position of operator.Wherein, proximal end refers to close to one end of operator, distally refers to remote
One end from operator.In addition, the first nip part refers to the upper folder for being located at distal end in surgical procedure in the utility model,
Second nip part refers to the lower folder positioned at proximal end.
Technical effect
The a series of conveying such as catheter sheath, valve clamping machine are completed jointly 1. working in coordination using components multiple in system
The surgical procedures such as assembly, conveying and clamping.
2. after assembled in vitro, can disposably convey each nip part to specific bit using the cooperation of push rod and delivery pipe
It sets.
3. the second nip part can slide in push rod, so that operator can fix up and down in use
The clamping position pressed from both sides up and down is freely adjusted before folder, avoids traditional clamping machine because unadjustable, once clamping fault can not repair
Multiple problem.
4. close ring and delivery pipe are fixed at operation handle using silk thread, it, can be in operation handle after completing clamping
Place cuts and extracts silk thread out, separates delivery pipe with closure interannular, this operates in external progress, simple and convenient.
5. prepare flexible across valve head using marmem, when conveying can will across valve head be retracted to puncture sheath or
To facilitate conveying in the pipeline of other component.
Make furtherly below with reference to technical effect of the attached drawing to the design of the utility model, specific structure and generation
It is bright, to be fully understood from the purpose of this utility model, feature and effect.
Detailed description of the invention
Fig. 1 is cardiac anatomy schematic diagram；
Surgery edge is to edge suturing skill schematic diagram when Fig. 2 a is mitral valve closure；
Surgery edge is to edge suturing skill schematic diagram when Fig. 2 b is mitral valve open；
Fig. 3 is that catheter sheath in one preferred embodiment of the utility model, the structure of expander and loader and connection are closed
It is schematic diagram；
Fig. 4 is the structural schematic diagram across valve device in Fig. 3 embodiment；
Fig. 5 is the structural schematic diagram of conveyer in Fig. 3 embodiment；
Fig. 6 is the structural schematic diagram of close ring in Fig. 3 embodiment；
Fig. 7 is that conveyer in Fig. 3 embodiment, push rod, the first nip part, the external mounting structure of the second nip part show
It is intended to；
Fig. 8 is the structural schematic diagram of the first nip part in Fig. 3 embodiment；
Fig. 9 is the structural schematic diagram of the second nip part in Fig. 3 embodiment；
Figure 10 is the structural schematic diagram after the completion of implanted component clamping.
Appended drawing reference: 1- catheter sheath, 2- loader, 3- expander, across the valve device of 4-, across the valve head of 401-, 402- shaft, 5-
Conveyer, 501- delivery pipe, 502- operation handle, 503-Y type haemostatic valve, 6- close ring, 601- internal screw thread, the first clamping of 7-
Component, the second nip part of 8-, 801- external screw thread, 9- push rod, the atrium sinistrum 1001-, 1002- left ventricle, 1003- edge is to edge
Suture.
Specific embodiment
The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining attached drawing description is exemplary, it is intended to for explaining the utility model, and should not be understood as to the utility model
Limitation.
In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", " length ", " width
Degree ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " suitable
The orientation or positional relationship of the instructions such as hour hands ", " counterclockwise " is to be based on the orientation or positional relationship shown in the drawings, merely to just
In description the utility model and simplify description, rather than the device or element of indication or suggestion meaning there must be specific side
Position is constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more of the features.The meaning of " plurality " is two or two in the description of the present invention,
More than, unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. terms shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood as the case may be
Concrete meaning in the present invention.
In the present invention unless specifically defined or limited otherwise, fisrt feature the "upper" of second feature or it
"lower" may include that the first and second features directly contact, and also may include that the first and second features are not direct contacts but lead to
Cross the other characterisation contact between them.Moreover, fisrt feature includes above the second feature " above ", " above " and " above "
One feature is right above second feature and oblique upper, or is merely representative of first feature horizontal height higher than second feature.First is special
Sign includes fisrt feature right above second feature and oblique upper under the second feature " below ", " below " and " below ", or only
Indicate that first feature horizontal height is less than second feature.
A kind of valve clamping system is present embodiments provided, which includes operating member, transfer unit, function
Energy component and implanted component are all made of storage box and uniformly hold except disposable implanted component, use convenient for operation,
In: operating member includes conveyer 5 and push rod；Transfer unit includes catheter sheath 1, puncture sheath and loader 2；Functional component packet
Include expander 3 and across valve device 4；First nip part 7, the second nip part 8 and this three component of close ring 6 are implanted component,
It is Permanent implantation human body after the completion of implantation, therefore, which generallys use nontoxic marmem production, simultaneously
Its excellent elasticity can reduce component in the course of surgery to the damage of organ-tissue, while closely complete to valve
Clamping.
Below in conjunction with its specifically used method of each component during surgery, the structure and matching relationship of each component are introduced.
It is described below operation is how to convey valve clamping machine into human body using the system, completes clamping movement and most
Transportation system is withdrawn from eventually.
First, cut the left chest the 4th of patient patient or the 5th intercostal 4-6cm, the apex of the heart position of exposure heart, at the apex of the heart
Carry out pocket sewing.It is punctured again with puncture needle at pocket center and enters left ventricle, the mesoporous along puncture needle is sent into seal wire, and extraction is worn
Pricker, puncture needle are the standing tool of operating room, and there is no need to be included in the clamping system.
The second, catheter sheath 1 and expander 3 are sent into along seal wire.As shown in figure 3, the figure shows catheter sheath 1, expander 3 with
And the connection relationship of 2 three of loader, wherein catheter sheath 1 is tube-like piece, and pore is first through hole, which can
The loading pipe of 2 bottom righthand side of loader is allowed to be inserted, the pore of the loading pipe is fourth hole, and internal diameter is sufficient to accommodate expansion
The expansion of device 3 is managed and all multi-parts such as the delivery pipe 501 of conveyer 5, therefore, in the course of surgery, makees using loader 2
Each operating member is accepted for the proximal end of transfer unit, and is conducted into the catheter sheath 1 of distal end.
Expander 3 and catheter sheath 1 can be combined in the present embodiment, i.e., expander 3 can pass through loader 2
It is inserted into catheter sheath 1, expander 3 has expansion pipe, and pore is the second through-hole, and internal diameter is suitable for penetrating seal wire.In addition, from
From the point of view of axial length, expander 3 is longer than catheter sheath 1, about stretching catheter sheath 13-8cm, and the length of catheter sheath 1 needs 20-35cm.Expansion
It should accomplish that transition is smooth between 3 tube body of device and the tube wall of catheter sheath 1, in this way, catheter sheath 1 and expander 3 will not when passing through cardiac muscle
Scrape injured tissue.When the distal end of catheter sheath 1 determines below intra-ventricle, mitral level, expander 3, loader 2 are extracted
And seal wire, it leaves catheter sheath 1 and is connect with ventricle.
Third, across the valve step in order to realize 1 distal end of catheter sheath need to be sent into across valve device 4 along catheter sheath 1.Across valve device 4
For structure as shown in figure 4, across valve device 4 has across valve head 401 and shaft 402, across valve head 401 is closed using with hyperelastic NiTi
Gold preparation can compress into the puncture sheath of 6-8F (puncture sheath is standing tool in operating room, about long 10cm).Due to not
401 size of across valve head of contraction state is typically larger than puncture sheath bore, therefore when operation, shaft 402 is first inserted into puncture sheath
Guan Zhong is greater than puncture sheath length of tube since shaft 402 is about 50-60cm, when across valve head 401, which touches, punctures sheath, if continuing
Shaft 402 is pulled, across the valve contraction of head 401 is eventually entered into using the binding force for puncturing sheath and punctures in sheath；Again will later
Puncture sheath is inserted into catheter sheath 1, and across valve device 4 is sent in continuation inward.When valve is passed through across the valve ball in across valve 4 head of device before and after the bicuspid valve,
Into after atrium sinistrum, continue to be sent into catheter sheath 1 inward, when 1 head of catheter sheath in atrium sinistrum when, extract across valve 4 He of device
Puncture sheath.
4th, assembled in vitro.As shown in figure 5,5 distal end of conveyer is delivery pipe 501, pore is the structure of conveyer 5
Third through-hole, push rod 9 are rod-like element, can enter the third through-hole, and 2 length of loader is 5-15 cm, 501 length of delivery pipe
For 45-55cm, pusher length is 80-90cm.501 distal end of delivery pipe is equipped with close ring 6,6 structure of close ring such as Fig. 6 institute
Show, distal end has internal screw thread 601.5 proximal end of conveyer is also equipped with Y type haemostatic valve 503.
The first nip part 7, the second nip part 8 after being installed, 501 structure of delivery pipe are as shown in Figure 7, wherein
First nip part 7, the structure difference of the second nip part 8 are as Figure 8-9,7 proximal end of the first nip part and push rod 9
It is threadedly coupled, the second nip part 8 is placed on 9 body of rod surface of push rod, and proximal end is provided with external screw thread 801, can be with delivery pipe 501
Internal screw thread 601 in distal end close ring 6 is cooperatively connected, in addition, the proximal end of 8 clamp arm of the second nip part is again provided with clip tooth,
Therefore the opening angle that can be further constrained 8 clamp arm of the second nip part using the internal screw thread 601 in close ring 6 simultaneously, is played
The effect collapsed clamp arm, be tightly fastened nip part.
Steps are as follows for assembled in vitro in operation: the delivery pipe 501 in conveyer 5 being inserted into loader 2, then by push rod 9
It is inserted into delivery pipe 501.There is hole between 501 distalmost end of delivery pipe and close ring 6, by the way of silk thread perforation binding, finally ties
It beats at operation handle 502.The second nip part 8 is put into push rod 9 again, and slides to bottom along 9 surface of push rod, is pushed
9 distal end of bar is threadedly coupled with the first nip part 7 again.Second nip part, 8 proximal end is connect with 6 distal threads of close ring again, most
Folder is taken in loader 2 up and down at last.
5th, loader 2 is connected with catheter sheath 1.The push operation handle 502 in heart, until the first nip part
7, the second nip part 8 releases in atrium sinistrum.Adjust the first nip part 7, the second nip part 8 is opened and closed with bicuspid valve
Direction is vertical, and catheter sheath 1 of dropping back makes the first nip part 7, the second nip part 8 respectively in valve two sides, above pushes away the first folder
Component 7 is closed, so that the second nip part 8 is captured valve, then pull down the first nip part 7, presss from both sides the first nip part 7, second
It closes 8 clamp arm of component and clamps valve, then above push away close ring 6, collapse left and right clamp arm and enter close ring 6, final clamping mode is as schemed
Shown in 10.
6th, push rod 9 is screwed out, exits pusher.Knot is cut at operation handle 502, extracts silk thread out,
Make to separate between delivery pipe 501 and close ring 6.Withdraw from conveyer 5, catheter sheath 1, loader 2.
7th, pocket is closed.Close chest.Operation is completed.
The preferred embodiments of the present invention have been described in detail above.It should be appreciated that the ordinary skill people of this field
Member according to the present utility model can conceive without creative work makes many modifications and variations.Therefore, all this technology necks
Technical staff passes through logic analysis, reasoning or limited reality according to the design of the utility model on the basis of existing technology in domain
Available technical solution is tested, it all should be within the scope of protection determined by the claims.
Claims (10)
1. a kind of valve clamping system, which is characterized in that including
Catheter sheath with first through hole；
Expander with the second through-hole, second through-hole and its outer wall are able to enter the first through hole, and described second is logical
Hole internal diameter is suitable for penetrating seal wire, and the axial length of second through-hole is greater than the axial length of the first through hole；
Across valve device, across the valve device include outer diameter be less than the first through hole internal diameter shaft and it is flexible across
Valve head, across the valve head are set to described shaft one end, and the shaft length is greater than the axial length of the first through hole；
Conveyer, described conveyer one end are provided with delivery pipe, and the delivery pipe has third through-hole, and described delivery pipe one end
It is detachably connected with close ring, the axial length of the delivery pipe is greater than the axial length of the catheter sheath；
Push rod, at least part push rod is able to enter the third through-hole, and is able to enter in the third through-hole
Rod segment length be greater than the third through-hole axial length；
Loader, the loader have fourth hole, and the fourth hole is suitable for accommodating at least part delivery pipe, until
The outer wall dimension of few a part of fourth hole is able to enter in the first through hole；
First nip part and the second nip part, first nip part have an at least two first clamping arms, and described the
Two nip parts have the second clamping arm of corresponding number, corresponding the second clamping arm of each first clamping arm
It can be combined to a pair of of fixture；First nip part is suitable for being detachably connected with the push rod distal end, second clamping
Component is suitable for being slidably connected with the push rod, and the close ring distal end is suitable for detachably connecting with second nip part proximal end
It connects.
2. valve clamping system as described in claim 1, which is characterized in that further include puncture sheath, the puncture sheath has interior
Diameter size is suitable for accommodating the shaft and across the valve head, outer diameter are adapted to enter into the pipeline section of the first through hole.
3. valve clamping system as described in claim 1, which is characterized in that the conveyer further includes Y type haemostatic valve, described
Y type haemostatic valve is set to the conveyer different from one end of the delivery pipe.
4. valve clamping system as described in claim 1, which is characterized in that the expander is completely into the first through hole
When, the first through hole 3-8cm can be stretched out.
5. valve clamping system as described in claim 1, which is characterized in that the expander tube body and the catheter sheath tube wall
Between seamlessly transit.
6. valve clamping system as described in claim 1, which is characterized in that the conveyer further includes operation handle, described
Delivery pipe and the closure ring are fixed at the operation handle using the silk thread mode of tying up.
7. valve clamping system as described in claim 1, which is characterized in that second nip part and the push rod can
The distance that opposite sliding occurs is 15-45mm.
8. valve clamping system as described in claim 1, which is characterized in that the loader length is 5-15cm, described defeated
Sending length of tube is 45-55cm, and the push pole length is 80-90cm.
9. valve clamping system as described in claim 1, which is characterized in that the close ring distal end and second sandwich part
Part proximal end is respectively arranged with the internal screw thread and external screw thread worked in coordination, and second nip part has and the screw-internal thread fit
Fixation tooth.
10. valve clamping system as described in claim 1, which is characterized in that further include storage box, for placing institute completely
State catheter sheath, the expander, across the valve device, the conveyer, the loader and the push rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721404701.7U CN208808748U (en) | 2017-10-27 | 2017-10-27 | A kind of valve clamping system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721404701.7U CN208808748U (en) | 2017-10-27 | 2017-10-27 | A kind of valve clamping system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208808748U true CN208808748U (en) | 2019-05-03 |
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ID=66267241
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721404701.7U Active CN208808748U (en) | 2017-10-27 | 2017-10-27 | A kind of valve clamping system |
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|---|---|
| CN (1) | CN208808748U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107595437A (en) * | 2017-10-27 | 2018-01-19 | 上海捍宇医疗科技有限公司 | A kind of valve clamping system |
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2017
- 2017-10-27 CN CN201721404701.7U patent/CN208808748U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107595437A (en) * | 2017-10-27 | 2018-01-19 | 上海捍宇医疗科技有限公司 | A kind of valve clamping system |
| CN107595437B (en) * | 2017-10-27 | 2024-07-12 | 上海捍宇医疗科技股份有限公司 | Valve clamping system |
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