CN105078467A - Intra-cavity measurement apparatus and measurement method - Google Patents
Intra-cavity measurement apparatus and measurement method Download PDFInfo
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- CN105078467A CN105078467A CN201510559893.8A CN201510559893A CN105078467A CN 105078467 A CN105078467 A CN 105078467A CN 201510559893 A CN201510559893 A CN 201510559893A CN 105078467 A CN105078467 A CN 105078467A
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Abstract
The invention provides an intra-cavity measurement apparatus and a measurement method. The measurement apparatus comprises a measurement head for measuring the length of an intra-cavity tissue, wherein the measurement head is connected to a push-pull rod which is used for pushing and pulling; the push-pull rod comprises a connecting end which is connected to the measurement head and a push-pull end for pushing and pulling the measurement head; a scale is marked in the measurement head and is rotatably connected to the connecting end of the push-pull rod; under an initial state, the axis of the push-pull rod is parallel with the axis of the measurement head; and under a service state, the push-pull rod moves in the direction of the axis, and the axis of the push-pull rod forms a first angle with the axis of the measurement head. The measurement apparatus and the measurement method disclosed by the invention can be used for changing the first angle by pushing and pulling the measurement head with the push-pull rod, with a view to enabling the measurement head to contact with a measured tissue, so as to directly measure the length of the tissue depending on the scale in the measurement head; and the measurement apparatus disclosed by the invention, when being used for measurement, is simple in operation, and simultaneously, the measurement apparatus is capable of achieving minimally invasive measurement, so as to reduce pain in patients.
Description
Technical field
The present invention relates to a kind of arthrocsopic surgery intracavity measuring device, especially a kind of for measuring the intracavity measuring device and measuring method of rebuilding the posterior cruciate ligament changing of the relative positions (stretching) distance in the joint of patient, belong to operating auxiliary device.
Background technology
When carrying out cruciate ligament reconstruction surgery, owing to lacking definite achievement data, thus be difficult to evaluate the difference between mode that surgical effect and various reconstruction fix.At present often can only fixing according to ligament reconstructive after, knee joint carries out going down on one's knees the situation of the range of motion such as stretching,s extension to evaluate reconstruction effect, and this evaluation method is often according to the experience of doctor, does not have the data of quantification as support.Because ligamentaum cruciatum has larger elasticity, kneed motion conditions can be presented as the distance of the ligament changing of the relative positions (stretching) in articular cavity, but due to the restriction of the series of factors such as operative approach channel size and organization of human body complexity in such operation of present stage, make not have suitable tools at present to realize the measurement of the ligament changing of the relative positions (stretching) distance.
But, if measuring device in a set of articular cavity can be had, by rational structural design, make dip stick can have larger motility, guarantee when not damaging tissue, enter paths along arthrocsopic surgery and arrive measuring position exactly, again according to articular cavity inner structure situation, regulated by a series of action in articular cavity, thus effectively measure articular cavity inner tissue length, length of lesion, doctor will be helped to understand affected part situation more intuitively, thus more reasonably take repair mode.And pass through data collection intuitively, operation standard can be set up for all kinds of arthrocsopic surgery and Data support is provided.
Therefore; need a kind of device can according to arthrocsopic surgery approach channel size and organization of human body; articular cavity inner tissue length, length of lesion (rotator cuff tear area is measured exactly according to doctor's demand when arthrocsopic surgery; tibiofibular ligaments thickness, the changing of the relative positions, tear distance; ligamentaum cruciatum thickness, distance of stretch out and draw back; cartilage tissue damage length etc.); surgeon is helped more adequately to understand affected part situation by data; thus select reparation the most suitable, suture location, thus guarantee to obtain best surgical effect.
Summary of the invention
The object of this invention is to provide a kind of intracavity measuring device and measuring method, articular cavity inner tissue length, thickness and tissue injury's area size can be measured exactly, surgeon can be facilitated accurately to understand affected part situation, simultaneously simple to operate, patient is damaged little.
The present invention solves above-mentioned technical problem, and the technical scheme provided is as follows:
A kind of intracavity measuring device, comprising:
For the gage outfit measured intraluminal tissue, described gage outfit is connected with the push-pull bar for push-and-pull;
Described push-pull bar comprises the link that is connected with described gage outfit and the push-and-pull end for gage outfit described in push-and-pull;
Described gage outfit is carved with scale, and is rotationally connected with the described link of described push-pull bar;
When original state, the axis of described push-pull bar and the axis being parallel of described gage outfit; When using state, described push-pull bar moves in the axial direction, and the axis of described push-pull bar and the axis of described gage outfit form the first angle.
The present invention is rotationally connected by push-pull bar and gage outfit, utilizes the push-and-pull of push-pull bar that gage outfit is rotated.Under original state and using state, there is different changes from the axis angle of gage outfit in the axis of push-pull bar, and object not only facilitates gage outfit to send into intracavity, and gage outfit is contacted with tested tissue.And then directly can accurately measure length of tissue, thickness and tissue injury's area size by the scale on gage outfit, the data of measurement provide reliable basis for surgical effect.
Preferably, described first angle is that α, α are between 0 ° ~ 90 °;
In the technical program, the setting of the first angular range is mainly set by intraluminal tissue mechanism, and object is the measuring position that gage outfit can be made to reach best by the angle of setting.
Preferably, the push-and-pull end of described push-pull bar connects one for there is the handle of push-and-pull, described handle is provided with further the regulating handle limiting described push-pull bar push-and-pull position;
Described regulating handle one end is connected with the described push-and-pull end of described push-pull bar, and is far-end, and the other end is near-end, and described far-end and described handle are rotationally connected, and described near-end rotates for controlling described far-end, and forms the second angle with described handle.
Preferably, described second angle is that β, β are between 0 ° ~ 90 °.
The technical program connects leader on the push-and-pull end of push-pull bar, and arranges the regulating handle for controlling push-pull bar further on handle.By the cooperation between handle and regulating handle, effectively control push-and-pull dynamics and the push-and-pull distance of push-pull bar, wherein the setting of the second angle mainly sets according to the structure of human body joints of hand, and being convenient to doctor can one-handed performance when practical operation, reduce work difficulty, increase work efficiency.
Preferably, the basis of said structure also arranges a connection piece, described connector one end is fixedly connected with described handle, and the other end and described gage outfit are rotationally connected.
The technical program further arranges a connection piece on the basis of said structure, and object is the direction effectively being controlled push-pull bar movement by the connector of setting, and ensures push-pull bar and the bonding strength between handle and gage outfit.
Preferably, described connector is preferably hollow pipe, and described hollow bush is located at outside described push-pull bar;
When promoting described push-pull bar, described push-pull bar moves along the axis of described hollow pipe towards described gage outfit direction, and described gage outfit rotates; When pulling described push-pull bar, described push-pull bar moves along the axis court of described hollow pipe away from described gage outfit direction, the axis of described gage outfit and the axis being parallel of described hollow pipe.
In the technical program, the preferred hollow pipe of connector, can ensure on the basis of bonding strength, play a protective role further to push-pull bar, avoid push-pull bar repeatedly push-and-pull cause fracture after gage outfit cannot be exited.Hollow pipe simultaneously by arranging can ensure that gage outfit is returned to original state effectively, and overall structure is attractive in appearance.
Preferably, one end that described connector connects described gage outfit arranges adaptor further, described adaptor and described gage outfit is round and smooth is rotationally connected.
By arranging adaptor on one end of connector in the present invention, hollow pipe and the round and smooth rotation of gage outfit can be ensured, push-pull bar can be promoted gently and can realize gage outfit and rotate, avoid having some setbacks due to rotation or thrust is excessive affects comfortableness.
Preferably, described handle is also arranged the locating piece being used for fixing described connector.
Be fixed in handle by arranging a positioning block by connector in the present invention, when preventing push-pull bar from moving, connector is and then mobile, avoids connector to move or comes off, and causes gage outfit cannot normal rotation.
Preferably, described handle is also arranged further one for locking the locking mechanism of described regulating handle turned position, described locking mechanism comprises lock dog, for limiting the limited block of described regulating handle turned position, and connect the screens block of described lock dog and described limited block.
Gage outfit of the present invention contacts with measured organization, and keep that one fixing and stable state could facilitate doctor to read measurement data, the accurate linear measure longimetry of final realization, therefore, by arranging a locking mechanism on handle, regulating handle can be locked in certain position by locking mechanism, prevents gage outfit to be rotated further further, facilitates doctor to operate.
Preferably, described lock dog one end and described screens block are slidably connected, and the other end is along described grip surface lifting predetermined altitude;
Described screens block is provided with the sliding end be slidably connected with described lock dog, and the link be connected with described limited block, and described link is provided with protruding card tooth;
Described limited block is arranged multiple groove for engaging with described card tooth, and multiple described groove along described limited block axis direction row establish;
When described lock dog can one end lifting predetermined altitude of lifting time, the described sliding end of described screens block presses down, described link lifting predetermined altitude, and described card tooth and described groove depart from.
The technical program controls an engagement in the card tooth of screens block and multiple grooves of limited block by lock dog, realize the locking to regulating handle position, and the multiple grooves arranged directly determine the shift position of regulating handle push-and-pull push-pull bar, limit the turned position of gage outfit further.When Ka Ya and groove depart from, gage outfit can be made again to be returned to initial position.
Preferably, described limited block is connected with described handle by a flexible member;
Also arrange a connecting rod further, one end of described connecting rod is connected with described limited block, and the other end is connected with the near-end of described regulating handle;
When the near-end of described regulating handle is towards described handle motion, described second angle changes, and described connecting rod promotes described limited block and moves towards the far-end of described regulating handle, described card tooth and engagement described at least one.
Preferably, described flexible member is torsion spring or tension spring.
By the connection of connecting rod in the technical program, when pulling regulating handle, can effectively promote the movement of limited block.Flexible member simultaneously by arranging, enables the limited block of movement be returned to original state.And then realize gage outfit and switch under original state and using state.
Present invention also offers a kind of measuring method of intracavity measuring device, described intracavity measuring device is above-mentioned intracavity measuring device, and the step of measurement comprises as follows;
A), described gage outfit is sent into intracavity measuring position;
B), promote described push-pull bar, described gage outfit rotates, and carves graduated side and measures tested tissue tensile elongation;
C), pull described push-pull bar, described gage outfit exits.
In the technical program, the feeding of gage outfit is different from conventional device and directly sends into, but the clamping block axis of control survey head and the position of hollow pipe axis dexterously by arranging, ensure the comfortableness in feeding process and measuring process, and play effectiveness, make feeding process and measuring process better convenient, and only need enter paths and can operate by less, measurement data is accurate, improves therapeutic efficiency.
Preferably, when described gage outfit is sent into, the axis of described push-pull bar and the axis being parallel of described gage outfit, the groove of described card tooth and described link departs from, and described flexible member is contraction state.
Preferably, when promoting described push-pull bar, described gage outfit rotates, and described push-pull bar axis and described gage outfit axis form the first angle, and on described card tooth and described link, described at least one, engagement realizes locking, and described flexible member is extended state;
When described gage outfit exits, the axis of described push-pull bar and the axis being parallel of described gage outfit, and consistent when sending into described gage outfit.
In sum, intracavity measuring device of the present invention and measuring method include at least one beneficial effect following:
1, measuring device of the present invention can measure the length of intraluminal tissue, thickness and tissue injury's area size exactly, has good comfortableness, can provide reliable measurement data for doctor.
2, measuring device of the present invention has regulatory function, no matter is in feeding process or in measuring process, the equal adjustable of axis angle of gage outfit and push-pull bar, and convenient feeding, improves accuracy of measurement.Gage outfit can with intracavity tested tissue plane-plane contact, can measure, pain that tissue damage is caused and uncomfortable phenomenon can be avoided again.
3, bonding strength of the present invention is strong, stability is high, at the outer sheathed a connection piece of push-pull bar, improves the bonding strength that push-pull bar connects handle and gage outfit.
4, gage outfit difficult drop-off in measuring device of the present invention, gage outfit with hollow pipe is round and smooth is rotationally connected by the adaptor that arranges, is reduced the push-and-pull of push-pull bar, avoids the excessive discomfort causing patient of exerting oneself simultaneously.
5, measuring device of the present invention is by locking mechanism, the position of locking gage outfit, avoids the injury that operate miss causes patient, reduces medical-risk, and easy to use.
6, measuring device of the present invention can repeated measure, can be sent into and exit, reduce the misery of patient by the rotation of gage outfit from the less paths that enter.
7, measuring device of the present invention in use, has good stability, can realize locking, and by the flexible member arranged, push-pull bar is returned to original state, and then can repeat operation in different positions by locking mechanism.
8, measuring method of the present invention achieves Wicresoft's measurement, damages little, simple to operate, and it is high that gage outfit sends into accuracy, and measurement data accuracy rate is high.
Accompanying drawing explanation
Below by clearly understandable mode, accompanying drawings preferred implementation, is further described the above-mentioned characteristic of intracavity measuring device, technical characteristic, advantage and implementation thereof.
Fig. 1 is the gage outfit structural representation of a kind of embodiment of intracavity measuring device of the present invention;
Fig. 2 is the structural representation of a kind of embodiment of intracavity measuring device of the present invention;
Fig. 3 is handle internal structure schematic diagram in a kind of embodiment of intracavity measuring device of the present invention;
Fig. 4 is the screens block structure schematic diagram of locking mechanism in a kind of embodiment of intracavity measuring device of the present invention;
Fig. 5 is the standoff features schematic diagram of locking mechanism in a kind of embodiment of intracavity measuring device of the present invention;
Fig. 6 is the application schematic diagram of the gage outfit measurement ligament tension length of intracavity measuring device of the present invention;
Fig. 7 is the schematic diagram measured A portion enlarged diagram in Fig. 6.
Drawing reference numeral illustrates:
First angle [alpha]; Second angle beta; Measuring distance h;
1, gage outfit;
2, connector; 21, push-pull bar; 22, link; 23, push-and-pull end;
3, adaptor; 31, the first rotational pin;
4, handle;
41, regulating handle; 411, regulating handle far-end; 412, regulating handle near-end;
42, locking mechanism;
421, lock dog;
422, limited block; 4221, groove;
423, screens block; 4231, sliding end; 4232, screens end; 4233, card tooth;
43, flexible member; 44, connecting rod; 45, locating piece; 46, the second rotational pin.
Detailed description of the invention
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, contrast accompanying drawing is illustrated the specific embodiment of the present invention below.Apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings, and obtain other embodiment.
For making simplified form, only schematically show part related to the present invention in each figure, they do not represent its practical structures as product.In addition, be convenient to make simplified form understand, there are the parts of identical structure or function in some figure, only schematically depict one of them, or only marked one of them.In this article, " one " not only represents " only this ", also can represent the situation of " more than one ".
Intraluminal tissue length, length of lesion (rotator cuff tear area is measured the invention describes when one can be used for arthrocsopic surgery in articular cavity; tibiofibular ligaments thickness, the changing of the relative positions; tear distance; ligamentaum cruciatum thickness, distance of stretch out and draw back; cartilage tissue damage length etc.); doctor effectively can be helped to determine the affected part order of severity by measuring the data obtained thus select reparation the most suitable, suture location, thus guaranteeing to obtain best surgical effect.
In embodiments of the invention one, referring to Fig. 1, intracavity measuring device comprises the gage outfit 1 for measuring intraluminal tissue, and for the push-pull bar 21 of push-and-pull gage outfit 1.Concrete push-pull bar 21 includes the link 22 that is rotationally connected with gage outfit 1 and the push-and-pull end 22 for push-and-pull gage outfit 1, actual use before, the axis of push-pull bar 21 and the axis being parallel of gage outfit 1, guarantee gage outfit 2 is admitted to intracavity fast; Only need by promoting the push-and-pull end 22 of push-pull bar 21 during use, make push-pull bar 21 (direction of tested tissue) movement in the axial direction forward, when gage outfit 1 contacts with tested tissue, continuing to promote push-pull bar 21 utilizes the rotation of gage outfit 1 to contact with tested tissue, realizes the measurement to intracavity tested tissue.
Gage outfit 1 effect arranged is measured, and the mode measured has multiple, width equal multiple scale strips are set in the application on gage outfit 1, the width setup of scale strip is 0.5mm or 1mm, or its residual value, specifically set according to the organization need of actual measurement, but be generally be set to integer, contribute to doctor and directly close concrete data, and data are read.
When utilizing the scale on gage outfit 1 to measure, need ensure that scale is corresponding with tested tissue close contact, improve and measure precision.So realized by the rotation of gage outfit 1.Therefore, the axis of axis and gage outfit 1 that gage outfit 1 is rotated rear push-pull bar 21 forms the first angle, and the first angle is α, and α is arranged between 0 ° ~ 90 °.Certainly different according to measured object in other embodiments, the size of the first angle [alpha] can adjust.
In embodiments of the invention two, referring to Fig. 1,2, the basis of embodiment one arranges one for the handle 4 for manipulator's gripping, handle 4 is arranged further and controls the regulating handle 41 that push-and-pull occurs push-pull bar 21, the object that arranges of regulating handle 41 is the dynamics and the shift position that effectively control push-pull bar 21 push-and-pull, and then realize the rotational angle of control survey 1, the first angle [alpha] is changed.Concrete is rotationally connected the push-and-pull end 22 of regulating handle far-end 411 with push-pull bar 21, regulating handle near-end 412 and handle 4 are formed the second angle beta by the other end, and β is arranged between 0 ° ~ 90 °, the second angle beta arranged not only can facilitate doctor's one-handed performance, and namely rotates by regulating handle near-end 412 regulating and controlling distal handle 411 without the need to very large power.
Also can the first angle [alpha] and the second angle beta be arranged to identical simultaneously, the second angle beta directly perceived can be facilitated to control the first angle [alpha], certainly can be arranged to difference in other embodiments, use preferably identical for convenience of doctor in this application.In addition, the mode that regulating handle far-end 411 and handle 4 are rotationally connected has a variety of, regulating handle far-end 411 in the application realizes being rotationally connected preferably by the second rotational pin 46 separately established with handle 4, can meet while both are connected, ensure that regulating handle far-end 411 rotates clockwise on handle 4.
The effect of regulating handle 41 is push-and-pull push-pull bars 21, and push-pull bar 21 is gone up forward or backward (be forward towards tested intraluminal tissue direction, otherwise be backward) in the axial direction.Therefore, avoid the long-time movement repeatedly of push-pull bar 21 to cause fracture gage outfit 1 cannot be exited, also arrange a connection piece 2 further, be connected connector 2 one end with handle 4, the other end and gage outfit 1 are rotationally connected, and improve bonding strength.
Connector 2 one end arranged is connected with handle 4, be with follower link 2 to move for avoiding push-pull bar 21 to damage tested tissue simultaneously, so fix further by arranging a positioning block 45 one end by connector 2, and locating piece 45 can engage with the draw-in groove (not shown) that handle 4 is arranged, connector 2 is fixed between.The connected mode that certain locating piece 45 in other examples can directly weld with handle 4 or rivet, only need ensure that one end of connector 2 is fixed.
Connector 2 other end arranged is connected with gage outfit 1, in concrete the application, connector 2 is preferably hollow pipe, hollow bush is located at outside push-pull bar 21 during connection, when can ensure like this to promote push-pull bar 21, push-pull bar 21 moves along the axis of hollow pipe towards gage outfit 1 direction, and gage outfit 1 rotates simultaneously; And when pulling push-pull bar 21, push-pull bar 21, along the axis of hollow pipe towards moving away from gage outfit 1 direction, making the axis of gage outfit 1 and the axis being parallel of hollow pipe, being exited by gage outfit 1 after being convenient for measuring, while compact overall structure attractive in appearance.Certainly connector 2 also can select other material to connect in other embodiments, repeats no longer one by one in the application.
Again referring to Fig. 1, show the enlarged drawing of gage outfit 1, wherein connect the part of handle 4 in order to diagram simplifies push-pull bar 21 other end push-and-pull end 33 in connector 2 in detail.For making the round and smooth rotation of gage outfit 1, connector 2 further arranges an adaptor 3, such gage outfit 1 can rotate on adaptor 3.Concrete is passed adaptor 3 by the first rotational pin 31 and through gage outfit 1, is realized gage outfit 1 along angled rotation on the axis direction of connector 2.
In embodiments of the invention two, referring to Fig. 3, handle 4 is also arranged one for the locking mechanism 42 of lock adjustment handle 41 turned position, the object of locking gage outfit 1 is locked in a concrete position to realize measuring.Therefore, under gage outfit 1 using state, realize the rotation of dynamic regulating handle far-end 411 by pulling regulating handle near-end 412, further by rotating the promotion realized push-pull bar 21.And then the final purpose that push-pull bar 21 promotes promotes the gage outfit 1 be arranged on connector 2 to rotate.Now, the first angle [alpha] is greater than 0 °, effectively avoids gage outfit 1 in measuring process to be rotated further, and the first angle [alpha] occurs ceaselessly to change, and causes measuring numerical value wrong.
And locking mechanism 42 concrete comprise lock dog 421, limited block 422, and connect the screens block 423 of lock dog 421 and limited block 422.Wherein, one end of lock dog 421 and the sliding end 4231 of screens block 423 are slidably connected, and another can along handle 4 surface (being the upper surface of handle 4 in Fig. 2, not only compact conformation, and easy to operate) lifting predetermined altitude.
Referring to Fig. 4, 5, show the enlarged drawing of screens block 423 and limited block 422, protruding card tooth 4233 (protruding along screens end 4232 towards limited block 422 side) is set further on the screens end 4232 of screens block 423, the effect of card tooth 4233 can be connected with a joggle with multiple grooves 4221 of arranging on limited block 422, simultaneously again by lock dog 421 can one end of lifting predetermined altitude in the process of lifting, the sliding end 4231 of screens block 423 is pressed down, and then realize screens end 4232 lifting predetermined altitude, the groove 4221 that card tooth 4233 is engaged with one of them departs from.Object ensures that gage outfit 1 is returned to original state, and during original state, the first angle [alpha] is 0 °, the axis of gage outfit 1 and the axis being parallel of connector 2 simultaneously.
It should be noted that multiple groove 4221 is arranged side by side establish along the axis direction (from the screens end 4232 away from screens block 423 to close screens end 4232) of limited block 422.In the application, the quantity of groove 4221 is set to three, and card tooth 4233 engages with three grooves 4221 respectively successively, makes gage outfit 1 complete 30 °, 60 °, 90 ° angle adjustment.In other embodiments, the quantity of groove 4221 also can need to do quantitative increase and decrease according to the angle adjustment of gage outfit 1.
In embodiments of the invention two, only have the movement by limited block 422 when reality uses, card tooth 4233 can be made to be connected with a groove 4221 in multiple grooves 4221 that limited block 422 is arranged.Therefore, one connecting rod 44 is also set further, connecting rod 44 one end is connected with limited block 422, the other end is connected with regulating handle near-end 412, can can promote limited block 422 and move towards regulating handle far-end 411 on handle 4 by pulling regulating handle near-end 412, and then make card tooth 4233 and the locking realized gage outfit 1 that is connected with a joggle of different groove 4221, the second angle beta is controlled in certain angle.
In embodiments of the invention two, one flexible member 43 is also set in handle 1, the object arranging flexible member 43 makes the limited block 422 of movement be returned to original state, and then by moving back and forth of repeating, can realize the switching of gage outfit 1 between original state and using state.Concrete is connected with limited block 422 by one end of flexible member 43, and the other end is fixed on handle 4, limited block 422 can be rebounded initial position by elastic force.The application has elastic component 43 for torsion spring or tension spring, preferred tension spring, and its structure is simple, and elasticity is strong and volume is little.
Referring to Fig. 6,7, exemplary does to ligament tension length the measuring method measured by concrete for the intracavity measuring device of above-described embodiment.Its measuring method concrete steps are as follows:
A), gage outfit 1 is sent into intracavity measuring position (ligament place) the second angle beta between regulating handle near-end 111 and handle 4, it is made to reach maximum, the axis of push-pull bar 21 and the axis keeping parallelism of gage outfit 1 simultaneously, then gage outfit 1 is sent into intracavity from entering paths.
B), when gage outfit 1 is fed to precalculated position, pull regulating handle 41, the second angle beta between regulating handle near-end 111 and handle 4 is diminished, promote limited block 422 by connecting rod 44 to move along handle 4 towards regulating handle far-end 112 simultaneously, in the process of movement, card tooth 4233 can engage from different grooves 4221, after gage outfit 1 contacts with tested tissue, stop the locking continuing to pull regulating handle 41 and then realize regulating handle 41, the distance (in figure tested distance h) that tissue stretches directly can be checked by the scale of gage outfit 1, effectively avoid push-pull bar 21 to continue to promote gage outfit 1 to rotate, cheap checking measurement data.
Because the second angle beta between regulating handle near-end 111 and handle 4 diminishes, push-pull bar 21 is pushed and moves forward along connector 2 axis direction, promote gage outfit 1 to rotate simultaneously, make the axis of the axis of gage outfit 1 and push-pull bar 21 form the first angle [alpha] to change, when the first angle [alpha] arrives maximum (90 °), card tooth 4233 engages with a groove 4221 farthest away from screens end 4232, and flexible member 43 is stretched to the limit, realize the plane-plane contact with tested tissue, ensure the accuracy of measurement data.
C), after measurement completes, one end of lock dog 421 lifting predetermined altitude is pressed down, make itself and handle 4 upper surface flush (can certainly be angled) finishing appearance attractive in appearance, make limited block 422 be returned to initial position by the effect of flexible member 43 simultaneously, the i.e. axis of push-pull bar 21 and the axis keeping parallelism of gage outfit 1, by push-pull bar 3, gage outfit 1 is exited from entering paths again, shell doctor is completed smoothly to intraluminal tissue measurement of length.
The technical scheme that the present invention proposes, its core is on gage outfit 1, and this gage outfit 1 can not only realize rotating, and can facilitate doctor measuring simultaneously.In order to ensure that gage outfit 1 is being sent into, measured and exit stability in process further, handle 4 arranges locking mechanism 42, by the position of locking mechanism 42 lock adjustment handle proximate end 412, constant to guarantee the first angle [alpha] relative position formed between the axis of measuring process push-pull bar 21 and the axis of gage outfit 1.This structure achieves Wicresoft's measurement simultaneously, damages little, simple to operate.
It should be noted that above-described embodiment all can independent assortment as required.The above is only the preferred 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 (16)
1. an intracavity measuring device, is characterized in that, comprising:
For the gage outfit measured intraluminal tissue, described gage outfit is connected with the push-pull bar for push-and-pull;
Described push-pull bar comprises the link that is connected with described gage outfit and the push-and-pull end for gage outfit described in push-and-pull;
Described gage outfit is carved with scale, and is rotationally connected with the described link of described push-pull bar;
When original state, the axis of described push-pull bar and the axis being parallel of described gage outfit; When using state, described push-pull bar moves in the axial direction, and the axis of described push-pull bar and the axis of described gage outfit form the first angle.
2. intracavity measuring device according to claim 1, is characterized in that:
Described first angle is that α, α are between 0 ° ~ 90 °.
3. intracavity measuring device according to claim 1, is characterized in that:
The push-and-pull end of described push-pull bar connects one for there is the handle of push-and-pull, described handle is provided with further the regulating handle limiting described push-pull bar push-and-pull position;
Described regulating handle one end is connected with the described push-and-pull end of described push-pull bar, and is far-end, and the other end is near-end, and described far-end and described handle are rotationally connected, and described near-end rotates for controlling described far-end, and forms the second angle with described handle.
4. intracavity measuring device according to claim 3, is characterized in that:
Described second angle is that β, β are between 0 ° ~ 90 °.
5. intracavity measuring device according to claim 3, is characterized in that:
Also arrange a connection piece, described connector one end is fixedly connected with described handle, and the other end and described gage outfit are rotationally connected.
6. intracavity measuring device according to claim 5, is characterized in that:
Described connector is hollow pipe, and described hollow bush is located at outside described push-pull bar;
When promoting described push-pull bar, described push-pull bar moves along the axis of described hollow pipe towards described gage outfit direction, and described gage outfit rotates; When pulling described push-pull bar, described push-pull bar moves along the axis court of described hollow pipe away from described gage outfit direction, the axis of described gage outfit and the axis being parallel of described hollow pipe.
7. intracavity measuring device according to claim 5, is characterized in that:
One end that described connector connects described gage outfit arranges adaptor further, described adaptor and described gage outfit is round and smooth is rotationally connected.
8. intracavity measuring device according to claim 5, is characterized in that:
Described handle is also arranged the locating piece being used for fixing described connector.
9. intracavity measuring device according to claim 3, is characterized in that:
Described handle is also arranged further one and carry out for the far-end locking described regulating handle the locking mechanism that rotates, described locking mechanism comprises lock dog, for limiting the limited block of the proximal movement of described regulating handle, and connect the screens block of described lock dog and described limited block.
10. intracavity measuring device according to claim 9, is characterized in that:
Described lock dog one end and described screens block are slidably connected, and the other end can along described grip surface lifting predetermined altitude;
Described screens block is provided with the sliding end be slidably connected with described lock dog, and the link be connected with described limited block, and described link is provided with protruding card tooth;
Described limited block is arranged multiple groove for engaging with described card tooth, and multiple described groove is arranged along the axis direction of described limited block and is established side by side;
When described lock dog can one end lifting predetermined altitude of lifting time, the described sliding end of described screens block presses down, described link lifting predetermined altitude, and described card tooth and described groove depart from.
11. intracavity measuring devices according to claim 10, is characterized in that:
Described limited block is connected with described handle by a flexible member;
Also arrange a connecting rod further, one end of described connecting rod is connected with described limited block, and the other end is connected with the near-end of described regulating handle;
When the near-end of described regulating handle is towards described handle motion, described second angle changes, and described connecting rod promotes described limited block and moves towards the far-end of described regulating handle, described card tooth and engagement described at least one.
12. intracavity measuring devices according to claim 11, is characterized in that:
Described flexible member is torsion spring or tension spring.
The measuring method of 13. 1 kinds of intracavity measuring devices, is characterized in that: the intracavity measuring device of described intracavity measuring device according to any one of claim 1-12, and the step of measurement comprises as follows;
A), described gage outfit is sent into intracavity measuring position;
B), promote described push-pull bar, described gage outfit rotates, and carves graduated side and measures tested tissue tensile elongation;
C), pull described push-pull bar, described gage outfit exits.
The measuring method of 14. intracavity measuring devices according to claim 13, is characterized in that:
When described gage outfit is sent into, the axis of described push-pull bar and the axis being parallel of described gage outfit, the groove of described card tooth and described link departs from, and described flexible member is contraction state.
The measuring method of 15. intracavity measuring devices according to claim 13 or 14, is characterized in that:
When promoting described push-pull bar, described gage outfit rotates, and described push-pull bar axis and described gage outfit axis form the first angle, and on described card tooth and described link, described at least one, engagement realizes locking, and described flexible member is extended state.
The measuring method of 16. intracavity measuring devices according to claim 13, is characterized in that:
When described gage outfit exits, the axis of described push-pull bar and the axis being parallel of described gage outfit, and consistent when sending into described gage outfit.
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