CN213758236U - Aortic valve annulus internal measuring device - Google Patents
Aortic valve annulus internal measuring device Download PDFInfo
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- CN213758236U CN213758236U CN202022538581.8U CN202022538581U CN213758236U CN 213758236 U CN213758236 U CN 213758236U CN 202022538581 U CN202022538581 U CN 202022538581U CN 213758236 U CN213758236 U CN 213758236U
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- 210000001765 aortic valve Anatomy 0.000 title claims abstract description 41
- 239000011148 porous material Substances 0.000 claims abstract description 15
- 239000013013 elastic material Substances 0.000 claims abstract description 4
- 239000002775 capsule Substances 0.000 claims description 16
- 238000005259 measurement Methods 0.000 claims description 12
- 239000002184 metal Substances 0.000 claims description 5
- 230000006872 improvement Effects 0.000 description 8
- 230000008439 repair process Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 239000000523 sample Substances 0.000 description 6
- 210000000709 aorta Anatomy 0.000 description 5
- 201000002064 aortic valve insufficiency Diseases 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000007774 longterm Effects 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 3
- 238000007493 shaping process Methods 0.000 description 3
- 208000031481 Pathologic Constriction Diseases 0.000 description 2
- 239000008280 blood Substances 0.000 description 2
- 210000004369 blood Anatomy 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000010339 dilation Effects 0.000 description 2
- 230000004064 dysfunction Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 210000005240 left ventricle Anatomy 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000007157 ring contraction reaction Methods 0.000 description 2
- 210000003291 sinus of valsalva Anatomy 0.000 description 2
- 230000036262 stenosis Effects 0.000 description 2
- 208000037804 stenosis Diseases 0.000 description 2
- 241001272720 Medialuna californiensis Species 0.000 description 1
- 208000012287 Prolapse Diseases 0.000 description 1
- 206010067171 Regurgitation Diseases 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002308 calcification Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000009958 sewing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000008093 supporting effect Effects 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 230000002861 ventricular Effects 0.000 description 1
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Abstract
The utility model relates to the medical field, in particular to an adjustable aortic valve intra-annular measuring device, which comprises a measuring bag, a hand-held handle, an adjusting rod and a plurality of connecting rods; the measuring bag is made of elastic materials and is internally provided with a cavity; the lower end of the hand-held handle is fixedly connected with the upper end of the measuring bag, and an adjusting pore passage is arranged in the hand-held handle and communicated with the cavity; the outer surface of the adjusting rod is provided with a scale layer, one end of the adjusting rod coaxially penetrates through the adjusting pore passage and then extends into the cavity, one end of the connecting rod is hinged to the inner wall of the measuring bag, and the other end of the connecting rod is hinged to the adjusting rod; when the adjusting rod moves axially along the adjusting pore channel, the connecting rod is driven to rotate, and the measuring bag is radially expanded or reduced. The utility model discloses be convenient for measure the valve ring size.
Description
Technical Field
The utility model relates to the field of medical treatment, especially, relate to an aortic valve annulus internal measuring device with adjustable.
Background
The normal aortic valve consists of three semilunar valves, namely a left coronary valve, a right coronary valve and a non-coronary valve; in the population, 1-2% of aortic valves develop into bileaflet valves, which are represented by two half-moon valves with equal size or left/right/left/right non-coronary valve fusion, and in addition, the aortic valves of a few patients develop into single-lobe valves, four-lobe valves and even five-lobe valves; the normal aortic valve is opened in the systole of the heart, so that blood smoothly flows into the aorta from the left ventricle, and the valve leaf is closed in the diastole, so that the blood is prevented from flowing back to the left ventricle from the aorta; normal aortic valve maintenance requires not only normal aortic valve leaflet tissue, but also the entire aortic valve apparatus at the aortic root to function properly; the aortic valve apparatus comprises: aortic ventricular junction (VAJ), aortic Annulus (Annulus), aortic valve leaflets, aortic Sinus (Sinus), sinotubular junction (STJ), and part of the ascending aorta; abnormalities at a single site or at multiple sites can lead to dysfunction of the aortic valve.
Aortic valve dysfunction is divided into stenosis and regurgitation, wherein the stenosis is mostly caused by abnormal development, thickening, adhesion and calcification of valve leaflets, and the valve replacement mode is mostly adopted for clinical treatment; the mechanism of aortic valve regurgitation is complex, each part of the aortic valve apparatus is involved, and the currently international aortic valve regurgitation mechanism is classified into brussel classification proposed in 2009: type i is aortic valve leaflet activity normal coaptation root dilation or leaflet perforation, subdivided into type Ia (STJ plus dilation), type Ib (annuloaortic, sinus and STJ dilated), type Ic (annuloaxtension) and type Id (leaflet perforation); type ii leaflet prolapse; type iii is leaflet restricted activity; approximately two-thirds of patients with isolated aortic valve regurgitation are type TypeI or TypeII, which are well suited for aortic valve repair; the life quality and the long-term survival rate after the aortic valve repair are obviously higher than those of patients with aortic valve replacement.
The research on aortic valve repair started in 1955, including techniques such as aortic external filament ring contraction, junction suspension, bivalvization, and junction ring contraction, but the long-term effect is poor, so that the aortic valve repair is not clinically applied in large scale. In the last 80-90 s, the remodelling and Reimplantation technology matures, and a satisfactory long-term effect can be achieved by applying the technology aiming at aortic valve regurgitation caused by aortic root dilatation; with the knowledge of the aortic valve regurgitation mechanism and the good long-term results of Reimplantation, the aortic valve ring-contracting and fixing technology is more and more regarded as important in aortic valve repair.
The aortic annulus annuloplasty ring needs to be applied to aortic annuloplasty ring, and currently mainly includes the following categories: inner/outer rings, full/half rings, sutures/shaping bands/shaping rings, hard/soft rings; most are in the design or trial phase, and some are done manually by the clinician using other materials during the procedure depending on the surgical situation.
The aortic annuloplasty usually needs to measure the aortic annulus, at present, a probe is generally used clinically, the probe is made of metal or plastic, is oval, circular and the like, has multiple models, and the diameters of different models are increased progressively, and generally have a difference of 2 mm; when in use, an operator estimates the size of the aortic valve annulus of a patient in advance, then selects probes with similar diameters to plug into the aortic valve annulus through an aortic incision, and gradually replaces the probes with different diameters according to the tightness degree until the selected probes are matched with the size of the valve annulus. However, there is a problem that if the diameter of the aorta is small (specifically, the aortic sinotubular junction and/or the aortic sinus is small) and the diameter of the annulus is large, the conventional probe cannot be used for measuring the size of the annulus, and there are many inconveniences in use.
Therefore, there is a need for an adjustable aortic intra-annular measurement device to facilitate measurement of annulus size.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention provides an adjustable aortic valve intra-annular measurement device for measuring the size of the valve annulus.
In order to realize the purpose, the utility model provides an adjustable aortic valve intra-annular measuring device, which comprises a measuring bag, a handheld handle, an adjusting rod and a plurality of connecting rods; the measuring bag is made of elastic materials and is internally provided with a cavity; the lower end of the hand-held handle is fixedly connected with the upper end of the measuring bag, and an adjusting pore passage is arranged in the hand-held handle and communicated with the cavity; the outer surface of the adjusting rod is provided with a scale layer, one end of the adjusting rod coaxially penetrates through the adjusting pore passage and then extends into the cavity, one end of the connecting rod is hinged to the inner wall of the measuring bag, and the other end of the connecting rod is hinged to the adjusting rod; when the adjusting rod moves axially along the adjusting pore channel, the connecting rod is driven to rotate, and the measuring bag is radially expanded or reduced.
As a further improvement of the technical scheme of the utility model, the quantity of connecting rod is five at least, and each the connecting rod is along circumference evenly distributed.
As a further improvement of the technical scheme of the utility model, the one end of connecting rod articulates in the middle part inner wall of measuring the bag, the other end articulates in the bottom of adjusting the pole.
As a further improvement of the technical scheme of the utility model, the measuring bag is of an elastic metal structure or a flexible capsule structure.
As a further improvement of the technical proposal of the utility model, the measuring capsule is in an ellipsoid shape.
As a further improvement of the technical proposal of the utility model, the top of the adjusting rod is connected with a driving handle.
As a further improvement of the technical scheme of the utility model, the handheld handle is the straight-bar structure, the adjustment channel sets up along the axial of handheld pole.
As a further improvement of the technical scheme of the utility model, the adjusting pore is in a screw hole structure, and the adjusting rod is provided with an external thread part which is matched and screwed with the adjusting pore; the bottom of the adjusting rod is rotatably connected with a rotating block, and the adjusting rod is hinged to the rotating block.
Compared with the prior art, the utility model discloses following beneficial technological effect has:
the utility model provides an adjustable aortic valve ring internal measuring device, under the effect of regulation pole and connecting rod, the measuring bag can expand or reduce along radial to can stretch into aortic valve ring through the aorta incision under the state of reducing, then enlarge gradually, until with the big or small adaptation of valve ring, can measure the big or small numerical value of valve ring through the scale layer on regulation pole surface this moment, then the measuring bag reduces again and withdraws from; in addition, the device can also be used for fixing the aortic valve base ring forming belt in a ring shrinkage manner, the aortic valve base ring forming belt also extends into the aortic valve ring in a state that the measuring bag is shrunk, when the forming ring is shrunk and fixed, the measuring device is set to be an ideal inner diameter after ring shrinkage, and then the forming belt is tightened and sewn and fixed, so that the success rate of aortic valve repair can be improved.
The utility model discloses be favorable to improving aortic valve shaping effect, accord with social needs, have stronger practicality, be favorable to promoting medical technology's further development.
Drawings
Fig. 1 is a schematic structural view of the present invention in a first state;
fig. 2 is a schematic structural diagram of the present invention in the second state.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention based on the embodiments of the present invention.
Fig. 1 shows the state of the measurement balloon deflated and fig. 2 shows the state of the measurement balloon inflated, as shown in fig. 1 and 2: the embodiment provides an adjustable aortic valve intra-annular measuring device, which comprises a measuring bag 1, a handheld handle 2, an adjusting rod 3 and a plurality of connecting rods 4; the measuring bag 1 is made of elastic materials and is internally provided with a cavity 1 a; the lower end of the handheld handle 2 is fixedly connected with the upper end of the measuring bag 1, an adjusting hole channel 2a is arranged in the handheld handle 2, and the adjusting hole channel 2a is communicated with the cavity 1 a; the outer surface of the adjusting rod 3 is provided with a scale layer 5, one end of the adjusting rod 3 coaxially penetrates through the adjusting hole channel 2a and then extends into the cavity 1a, one end of the connecting rod 4 is hinged to the inner wall of the measuring bag 1, and the other end of the connecting rod is hinged to the adjusting rod 3; when the adjusting rod 3 moves axially along the adjusting hole 2a, the connecting rod 4 is driven to rotate, and the measuring bag 1 is radially expanded or contracted.
The measuring capsule 1 has elasticity, and can expand or contract along the radial direction (namely the horizontal direction in figures 1 and 2) of the adjusting rod 3 under the internal supporting action of the connecting rod 4, so that the measuring capsule can extend into the aortic annulus through the aortic incision and is suitable for aortic annuluses with different sizes; the measuring capsule 1 can be, for example, an elastic metal structure or a flexible capsule structure, and under the condition of adopting the elastic metal structure, the measuring capsule 1 can also be formed by connecting a plurality of arc-shaped blocks; the measuring capsule 1 is preferably ellipsoidal.
The hand-held handle 2 is used for being held by a surgeon to control the movement and the positioning of the measuring capsule 1; the handle can be a straight rod structure and is in a hollow round shape, and the adjusting hole channel 2a is arranged along the axial direction of the handle rod.
The adjusting rod 3 is a solid round rod, the rod diameter of the adjusting rod is matched with the aperture of the adjusting pore channel 2a, and the adjusting rod 3 can move along the axial direction of the adjusting pore channel 2 a; the top of the adjustment lever 3 may be connected to a driving handle 6, which driving handle 6 is also used for the surgeon to hold in order to control the movement of the adjustment lever 3.
The number of the connecting rods 4 is at least five (for example, seven, nine, etc.), and each connecting rod 4 is uniformly distributed along the circumferential direction, and the angles between the adjacent connecting rods 4 are the same; one end of the connecting rod 4 is hinged to the inner wall of the middle part of the measuring bag 1, and the other end of the connecting rod is hinged to the bottom of the adjusting rod 3; when the adjusting rod 3 moves axially, each connecting rod 4 synchronously and respectively rotates slightly (can be regarded as swinging) by taking the connecting point of the connecting rod and the inner wall of the measuring bag 1 as a rotating point, so that the measuring bag 1 is expanded or reduced; the change of the diameter of the middle part of the measuring balloon 1 can be marked with the size of the valve ring, so the scale value on the scale layer 5 can be the value of the cross-sectional area of the middle part of the measuring balloon 1, and can be other reasonable parameters as long as the size of the valve ring can be marked.
Preferably, the adjusting hole channel 2a is in a screw hole structure, the adjusting hole channel 2a has an internal thread part, the adjusting rod 3 is provided with an external thread part which is matched and screwed with the adjusting hole channel 2a, and the adjusting rod 3 can be driven to move axially along the adjusting hole channel 2a by rotating the adjusting rod 3; the external thread part can be positioned on the lower half rod section of the adjusting rod 3; in order to avoid that the rotation of the adjusting lever 3 affects the connecting rod 4, the bottom of the adjusting lever 3 is rotatably connected (e.g. by means of a rotating bearing) with a rotating block 7, and the adjusting lever 3 is hinged to the rotating block 7.
By adopting the device, under the action of the adjusting rod 3 and the connecting rod 4, the measuring capsule 1 can be expanded or contracted along the radial direction, so that the measuring capsule can extend into the aortic valve annulus through an aortic incision in a contracted state, then is gradually expanded until the size of the measuring capsule is matched with the size of the valve annulus, at the moment, the size value of the valve annulus can be measured through the scale layer 5 on the surface of the adjusting rod 3, and then the measuring capsule 1 is contracted again and exits; in addition, the device can also be used for fixing the aortic valve base ring forming belt in a ring shrinkage manner, the measuring bag 1 also extends into the aortic valve ring in a reduced state, when the forming belt is fixed in a ring shrinkage manner, the measuring device is set to be an ideal inner diameter after ring shrinkage, then the forming belt is tightened and fixed in a sewing manner, and the success rate of aortic valve repair can be improved.
The above description is only an example of the present invention, and the common general knowledge of the known specific structures and characteristics of the embodiments is not described herein. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (8)
1. An adjustable aortic valve intra-annular measuring device is characterized in that: comprises a measuring bag, a handheld handle, an adjusting rod and a plurality of connecting rods; the measuring bag is made of elastic materials and is internally provided with a cavity; the lower end of the hand-held handle is fixedly connected with the upper end of the measuring bag, and an adjusting pore passage is arranged in the hand-held handle and communicated with the cavity; the outer surface of the adjusting rod is provided with a scale layer, one end of the adjusting rod coaxially penetrates through the adjusting pore passage and then extends into the cavity, one end of the connecting rod is hinged to the inner wall of the measuring bag, and the other end of the connecting rod is hinged to the adjusting rod; when the adjusting rod moves axially along the adjusting pore channel, the connecting rod is driven to rotate, and the measuring bag is radially expanded or reduced.
2. The adjustable aortic intra-valve measurement apparatus of claim 1, wherein: the number of the connecting rods is at least five, and the connecting rods are uniformly distributed along the circumferential direction.
3. The adjustable aortic intra-valve measurement apparatus of claim 1, wherein: one end of the connecting rod is hinged to the inner wall of the middle part of the measuring bag, and the other end of the connecting rod is hinged to the bottom of the adjusting rod.
4. The adjustable aortic intra-valve measurement apparatus of claim 1, wherein: the measuring capsule is of an elastic metal structure or a flexible capsule structure.
5. The adjustable aortic intra-valve measurement apparatus of claim 1, wherein: the measuring capsule is in an ellipsoid shape.
6. The adjustable aortic intra-valve measurement apparatus of claim 1, wherein: the top of the adjusting rod is connected with a driving handle.
7. The adjustable aortic intra-valve measurement apparatus of claim 1, wherein: the handheld handle is of a straight rod structure, and the adjusting hole channel is arranged along the axial direction of the handheld rod.
8. The adjustable aortic intra-annular measurement apparatus as claimed in any one of claims 1 to 7, wherein: the adjusting pore channel is of a screw hole structure, and an external thread part which is matched and screwed with the adjusting pore channel is arranged on the adjusting rod; the bottom of the adjusting rod is rotatably connected with a rotating block, and the adjusting rod is hinged to the rotating block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022538581.8U CN213758236U (en) | 2020-11-05 | 2020-11-05 | Aortic valve annulus internal measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022538581.8U CN213758236U (en) | 2020-11-05 | 2020-11-05 | Aortic valve annulus internal measuring device |
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| Publication Number | Publication Date |
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| CN213758236U true CN213758236U (en) | 2021-07-23 |
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| CN202022538581.8U Active CN213758236U (en) | 2020-11-05 | 2020-11-05 | Aortic valve annulus internal measuring device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117503113A (en) * | 2024-01-04 | 2024-02-06 | 泓欣科创生物科技(北京)有限公司 | Vascular measurer |
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2020
- 2020-11-05 CN CN202022538581.8U patent/CN213758236U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117503113A (en) * | 2024-01-04 | 2024-02-06 | 泓欣科创生物科技(北京)有限公司 | Vascular measurer |
| CN117503113B (en) * | 2024-01-04 | 2024-04-16 | 泓欣科创生物科技(北京)有限公司 | Vascular measurer |
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