A-type aortic dissection root false cavity measuring scale

Abstract

The utility model provides an A type aortic dissection root false cavity measuring scale, which comprises a shaping scale body, a locking mechanism and a contour probe, the shaping scale body is transversely arranged, the upper end face of the shaping scale body is vertically provided with a plurality of vertically through insertion holes, the insertion holes are arranged along the length direction of the shaping scale body, and the contour probe is arranged on the shaping scale body. One end of the shaping ruler body is transversely provided with a through groove in the length direction of the shaping ruler body, the through groove intersects with the inserting holes, the contour probes correspondingly penetrate through the shaping ruler body along the inserting holes, each contour probe can freely slide up and down along the corresponding inserting hole, and the shaping ruler body can be bent and deformed according to the shape of the aorta root dissection. The contour probe needles are arranged and shaped, the aorta root dissection torn part is detected and shaped through the contour probe needles, and the contour probe needles are locked through the locking mechanism after shape taking, so that a felt with a proper size can be accurately cut according to the arrangement shape of the contour probe needles, and an operation can be rapidly carried out.

Description

Technical Field

[0001] The utility model relates to the technical field of false lumen shaping at the root of type A aortic dissection, and in particular to a measuring ruler for the false lumen at the root of type A aortic dissection. Background Art

[0002] Type A aortic dissection is a disease in which the intima is gradually peeled off and expanded due to a local tear in the intima, which is subjected to strong blood impact, forming a true and false cavity. This disease can cause a series of symptoms, including tearing pain.

[0003] In the reconstruction surgery of the root tear of type A aortic dissection, the false lumen needs to be closed by cutting the corresponding felt pieces according to the depth and width of the tear site when reconstructing the media. In the past, in clinical surgery, the depth and width of the dissection tear site were estimated by the surgeon based on experience and the felt pieces were cut according to the estimated results. The felt pieces cut by this cutting method have poor shape accuracy and are difficult to shape. They do not fit the dissection tear site well and often require repeated cutting, which affects the speed of the operation. Utility Model Content

[0004] In view of this, it is necessary to provide a type A aortic dissection root false lumen measuring ruler that can measure and shape the torn part of the aortic dissection, so as to cut the corresponding felt piece according to the measured shape to improve the fit between the felt piece and the torn part of the dissection.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A measuring ruler for the false lumen at the root of type A aortic dissection comprises a shaping ruler body that can be bent and deformed, a locking mechanism and a contour detection needle. The shaping ruler body is arranged horizontally, and an upper end surface of the shaping ruler body is vertically provided with an insertion hole that penetrates up and down. There are multiple insertion holes, which are arranged and opened along the length direction of the shaping ruler body. A through groove is horizontally opened along the length direction of the shaping ruler body at one end of the shaping ruler body, and the through groove intersects with the insertion hole. There are multiple contour detection needles, which pass through the shaping ruler body along each insertion hole correspondingly, and each contour detection needle can slide freely up and down along the insertion hole respectively. The shaping ruler body can be arbitrarily bent and deformed in the directions on both sides thereof to arrange and shape the contour detection needles. The locking mechanism is arranged in the through groove, can be bent along the shaping ruler body, and can be separated from or frictionally contacted with each of the contour detection needles to lock the contour detection needles.

[0007] Preferably, the shaping ruler body is made of rubber, and a shaping plate is fixedly provided in the side wall or inner wall of the shaping ruler body. The shaping plate is parallel to the shaping ruler body and can be bent and deformed arbitrarily at the same time as the shaping ruler body to shape the shaping ruler body.

[0008] Preferably, the shaping plate is a bendable metal plate.

[0009] Preferably, the locking mechanism includes a locking arm that can be bent and deformed, an operating knob and a fixed seat, the locking arm is inserted in the through slot, and a locking hole or locking slot that passes through the locking arm is vertically opened up and down, the locking hole or locking slot corresponds to the insertion hole and can be opposite to the insertion hole, the contour detection needle passes through each locking hole or locking slot along the insertion hole corresponding to the insertion hole, the fixed seat is arranged at the through slot mouth of the end of the shaping ruler body, the operating knob is arranged on the fixed seat, one end of the operating knob passes through the fixed seat and is rotatably or threadedly connected to the locking arm, and the other end is rotatably or threadedly connected to the fixed seat, and rotating the operating knob can pull or push the locking arm to move along the through slot, so that the locking hole or locking slot is separated or frictionally contacted with the contour detection needle, so as to lock the contour detection needle.

[0010] Preferably, a support tube is nested in the insertion hole, and the contour detection needle passes through the locking arm and the shaping ruler body along the support tube.

[0011] Preferably, the aperture of the locking hole or locking groove is larger than the aperture of the support tube.

[0012] Preferably, the locking arm is made of rubber or fiber material.

[0013] Preferably, the contour detection needle is a circular or elongated structure, and one end thereof passing through the insertion hole or the support tube is a detection end, and the detection end is an arc shape.

[0014] Preferably, a needle handle is provided at the other end of the contour detection needle, and the width or diameter of the needle handle is larger than the aperture of the support tube.

[0015] Preferably, a graduated ruler is provided on the side wall of the shaping ruler body or the shaping plate.

[0016] It can be known from the above technical scheme that the utility model provides a type A aortic dissection root false lumen measuring ruler, including a shaping ruler body that can be bent and deformed, a locking mechanism and a contour detection needle, the shaping ruler body is arranged horizontally, and the upper end face of the shaping ruler body is vertically provided with a plug hole that penetrates up and down, there are multiple plug holes, which are arranged along the length direction of the shaping ruler body, and a through groove is horizontally provided at one end of the shaping ruler body along its length direction, and the through groove intersects with the plug hole, there are multiple contour detection needles, which pass through the shaping ruler body along each plug hole correspondingly, and each contour detection needle can be freely moved up and down along the plug hole The shaping ruler can bend and deform according to the shape of the false lumen of the aortic dissection, arrange and shape the contour detection needle, and detect the depth of the torn part of the root of the aortic dissection through contour detection. After shaping, the contour detection needle is locked by a locking mechanism to facilitate cutting the corresponding felt piece according to the shape of the arrangement of the contour detection needle. In this way, the felt piece of appropriate size can be accurately cut, so that the operation can be carried out quickly, which solves the technical difficulties of inaccurate and imprecise reconstruction of the dissection and incomplete closure of the false lumen during reconstruction of the aortic root tear in aortic dissection surgery. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the utility model structure in a flat state.

[0018] Figure 2 It is a schematic diagram of the structure of the utility model in a bent state.

[0019] Figure 3 The utility model is a schematic diagram of the decomposition structure.

[0020] Figure 4 The schematic diagram of the structure is that the locking arm is provided with a locking groove.

[0021] Figure 5 This is a schematic diagram of the position of the utility model when taking shape.

[0022] Figure 6 This is a schematic diagram of the state of the utility model after taking shape.

[0023] Figure 7 Schematic diagram of the cut felt pieces.

[0024] In the figure: shaping ruler body 1, locking mechanism 2, contour detection needle 3, jack 4, through slot 5, shaping plate 6, locking arm 21, operating knob 22, fixing seat 23, locking hole 24, locking slot 25, supporting tube 7, needle handle 31, scale 8. DETAILED DESCRIPTION

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments are briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0026] Please see Figures 1 to 3 The embodiment of the utility model provides a measuring ruler for the false lumen at the root of type A aortic dissection, comprising a shaping ruler body 1, a locking mechanism 2 and a contour detection needle 3. The shaping ruler body 1 is a long strip of rubber plate or a metal plate that is easy to bend and deform, and can be bent and deformed according to the shape of the aortic dissection. The shaping ruler body 1 is arranged horizontally, and the upper end surface of the shaping ruler body 1 is vertically provided with a jack 4 that penetrates up and down. There are multiple jacks 4, which are arranged in a line along the length direction of the shaping ruler body 1. A through groove 5 is horizontally provided at one end of the shaping ruler body 1 along its length direction, and the through groove 5 intersects with the jack 4. The contour detection needle 3 is a stainless steel needle with a cylindrical or long strip structure. There are multiple contour detection needles 3, corresponding to the number of the sockets 4. The contour detection needle 3 passes through the shaping ruler 1 along each socket 4 from the upper end of the shaping ruler 1, and each contour detection needle 3 can slide freely up and down along the socket 4. The lower end of the contour detection needle 3 passing through the shaping ruler 1 is the detection end, which is used to detect the tearing part at the root of the aortic dissection and detect the depth of the tearing part. In order to avoid further expansion and tearing of the aortic dissection, the detection end is a thin elliptical smooth ball head or an arc. When the contour detection needle 3 passes through the socket 4, it passes through the through groove 5. The locking mechanism 2 is movably arranged in the through groove 5. The locking mechanism 2 can bend with the shaping ruler 1 and can be separated or frictionally contacted with each of the contour detection needles 3 at the same time, so as to lock the contour detection needle 3.

[0027] Please see Figures 5 to 7When measuring and shaping the tearing site of the aortic dissection by using the A-type aortic dissection root false lumen measuring ruler, first adjust the locking mechanism 2 to separate from the contour detection needle 3, and adjust the direction of the shaping ruler body 1 so that the detection end of the contour detection needle 3 is vertically downward, and the contour detection needle 3 is slid to the lower end of the shaping ruler body 1. At this time, the shaping ruler body 1 is manually bent according to the cross-sectional shape of the false lumen at the root of the aortic dissection to form an arc that matches the cross-sectional shape of the false lumen of the aortic dissection, and is used to arrange and shape the contour detection needle 3. Press down the shaping ruler body 1 so that the detection end of the contour detection needle 3 is facing the false lumen of the aortic dissection, and insert it along the false lumen of the aortic dissection to the root of the aortic dissection, that is, the tearing site of the aortic dissection. The contour detection needle 3 can be manually bent according to the cross-sectional shape of the false lumen at the root of the aortic dissection. The flatness of the root of the aortic dissection is adaptively slid along the insertion hole 4 of the shaping ruler 1 to shape the root of the aortic dissection. After the detection end of the contour detection needle 3 completely reaches the root of the aortic dissection, stop pressing down the shaping ruler 1, and adjust the locking mechanism 2 to frictionally contact with the contour detection needle 3 to lock all the contour detection needles 3. After taking out the shaping ruler 1, the shaping ruler 1 is straightened and unfolded. At this time, the shaping is completed, and then the corresponding felt piece is cut according to the shape and insertion depth of the detection end of the contour detection needle 3. In this way, the felt piece of the appropriate size can be accurately cut, so that the operation can be carried out quickly, solving the technical difficulties of inaccurate and imprecise reconstruction of the dissection and incomplete closure of the false lumen during the reconstruction of the aortic root tear in aortic dissection surgery.

[0028] Please see Figure 3 Furthermore, in order to make the shaping ruler body 1 more convenient to use when shaping, the shaping ruler body 1 is made of rubber material, and a shaping plate 6 is fitted on the outer wall or inner wall of the shaping ruler body 1, or the shaping plate 6 can be set in the inner wall of the shaping ruler body 1. The shaping plate 6 is made of an easily bendable metal plate, such as a thin aluminum plate, a stainless steel plate, etc. The shaping plate 6 is fitted and fixed to the shaping ruler body 1 by bonding, and can be bent and deformed arbitrarily at the same time as the shaping ruler body 1. When the shaping ruler body 1 is bent, the shaping plate 6 can support and shape the shaping ruler body 1, prevent the shaping ruler body 1 from rebounding and deforming, and facilitate the shaping ruler body 1 to better arrange and shape the contour detection needle 3 when shaping.

[0029] Please see Figure 3 and Figure 4Specifically, the locking mechanism 2 includes a locking arm 21, an operating knob 22 and a fixing seat 23. The locking arm 21 is movably inserted in the through slot 5. The locking arm 21 is a strip structure made of rubber or fiber material, which can bend and deform arbitrarily at the same time as the shaping ruler 1. A locking hole 24 or a locking groove 25 that passes through the upper and lower parts is vertically opened on the locking arm 21. The number of the locking holes 24 or the locking grooves 25 corresponds to the insertion hole 4, and can be directly opposite to the insertion hole 4. When the contour detection needle 3 passes through the shaping ruler 1 along the insertion hole 4, it passes through each locking hole 24 or the locking groove 25 on the locking arm 21 accordingly. The fixing seat 23 is arranged at the mouth of the through slot 5 at the end of the shaping ruler 1. A screw is connected to the operating knob 22. One end of the screw passes through the fixing seat 23 and is rotatably or threadedly connected to the locking arm 21. The other end of the screw passes through the fixing seat 23 and is rotatably or threadedly connected to the locking arm 21. One end is rotatably or threadedly connected to the fixing seat 23. By manually rotating the operating knob 22, the locking arm 21 can be pulled or pushed to move along the through slot 5, so that the locking hole 24 or the locking groove 25 on the locking arm 21 and the insertion hole 4 are staggered or opposite to each other. When the locking hole 24 or the locking groove 25 and the insertion hole 4 are opposite to each other, the locking hole 24 or the locking groove 25 and the side wall of the contour detection needle 3 are in a separated state and do not contact each other. At this time, the contour detection needle 3 can slide freely up and down along the insertion hole 4. When the operating knob 22 is manually rotated to pull or push the locking arm 21 to move along the through slot 5, the locking hole 24 or the locking groove 25 on the locking arm 21 and the corresponding insertion hole 4 are staggered with each other, forming a mutual extrusion force on the side walls of the contour detection needle 3, and the extrusion force is used to lock the contour detection needle 3 to prevent the contour detection needle 3 from moving.

[0030] Please continue to see Figure 3 Furthermore, in order to prevent the shaping ruler body 1 from squeezing and deforming the insertion hole 4 when bending and deforming, a support tube 7 is nested in each insertion hole 4, and the support tube 7 is made of a plastic tube or a metal tube that is not easily deformed. The contour detection needle 3 passes through the locking arm 21 and the shaping ruler body 1 along the support tube 7, and the friction coefficient between the support tube 7 and the contour detection needle 3 is small, which can ensure that the contour detection needle 3 can slide freely up and down along the support tube 7.

[0031] Please see Figure 3 In the above embodiment, the aperture of the locking hole 24 or the locking groove 25 is larger than the aperture of the support tube 7, and the other end of the contour detection needle 3 is provided with a needle handle 31, and the width or diameter of the needle handle 31 is larger than the aperture of the support tube 7, which can prevent the contour detection needle 3 from detaching from the support tube 7.

[0032] Please see Figure 1 In the above embodiment, a scale 8 is provided on the side wall of the shaping ruler body 1 or the shaping plate 6 to facilitate observation and cutting.

[0033] When the A-type aortic dissection root false lumen measuring ruler is used, the operating knob 22 is first turned to separate the locking hole 24 or the locking groove 25 on the locking arm 21 from the contour detection needle 3, and the direction of the shaping ruler body 1 is turned so that the detection end of the contour detection needle 3 is vertically downward and directly facing the root of the aortic dissection, and the contour detection needle 3 is slid to the lower end of the shaping ruler body 1. At this time, the shaping ruler body 1 is manually bent according to the cross-sectional shape of the false lumen at the root of the aortic dissection to form an arc that matches the cross-sectional shape of the false lumen of the aortic dissection. The shaping ruler body 1 is pressed down so that the detection end of the contour detection needle 3 touches the root of the aortic dissection, that is, the tearing site of the aortic dissection. The contour detection needle 3 can be adjusted according to the active The flatness of the root of the aortic dissection is adaptively slid along the insertion hole 4 of the shaping ruler 1 to shape the root of the aortic dissection. After the detection end of the contour detection needle 3 completely reaches the root of the aortic dissection, stop pressing down the shaping ruler 1, turn the operating knob 22 to lock all the contour detection needles 3, and after taking out the shaping ruler 1, straighten the shaping ruler 1 and unfold it. At this time, the shaping is completed, and then the corresponding felt piece is cut according to the shape of the arrangement of the detection end of the contour detection needle 3. In this way, the felt piece of the appropriate size can be accurately cut, so that the operation can be carried out quickly, solving the technical difficulties of inaccurate and imprecise reconstruction of the dissection and incomplete closure of the false lumen during the reconstruction of the aortic root tear in aortic dissection surgery.

[0034] The above disclosure is only a preferred embodiment of the present invention, and it certainly cannot be used to limit the scope of the present invention. A person skilled in the art can understand that all or part of the processes of the above embodiments and equivalent changes made according to the claims of the present invention still fall within the scope of the present invention.

Claims

1. A measuring ruler for the false lumen at the root of type A aortic dissection, characterized by: The invention comprises a shaping ruler body which can be bent and deformed, a locking mechanism and a contour detection needle. The shaping ruler body is arranged horizontally, and an upper end surface of the shaping ruler body is vertically provided with an insertion hole which penetrates up and down. There are a plurality of insertion holes which are arranged and arranged along the length direction of the shaping ruler body. A through groove is horizontally provided at one end of the shaping ruler body along the length direction thereof, and the through groove intersects with the insertion hole. There are a plurality of contour detection needles which pass through the shaping ruler body along each insertion hole correspondingly, and each contour detection needle can slide freely up and down along the insertion hole respectively. The shaping ruler body can be bent and deformed arbitrarily in the directions on both sides thereof to arrange and shape the contour detection needles. The locking mechanism is arranged in the through groove, can be bent along the shaping ruler body, and can be separated from or frictionally contacted with each contour detection needle to lock the contour detection needle.

2. The false lumen measuring ruler for type A aortic dissection as claimed in claim 1, characterized in that: The shaping ruler body is made of rubber material, and a shaping plate is fixedly arranged in the side wall or inner wall of the shaping ruler body. The shaping plate is parallel to the shaping ruler body and can be bent and deformed arbitrarily at the same time as the shaping ruler body to shape the shaping ruler body.

3. The false lumen measuring ruler for type A aortic dissection root according to claim 2, characterized in that: The shaping plate is a metal plate that is easy to bend.

4. The false lumen measuring ruler for type A aortic dissection root according to claim 1 or 3, characterized in that: The locking mechanism includes a locking arm that can be bent and deformed, an operating knob and a fixing seat, the locking arm is inserted in the through slot, and a locking hole or locking slot that passes through the locking arm is vertically opened up and down, the locking hole or locking slot corresponds to the insertion hole and can be opposite to the insertion hole, the contour detection needle passes through each locking hole or locking slot along the insertion hole correspondingly, the fixing seat is arranged at the through slot mouth of the end of the shaping ruler body, the operating knob is arranged on the fixing seat, one end of the operating knob passes through the fixing seat and is rotatably or threadedly connected to the locking arm, and the other end is rotatably or threadedly connected to the fixing seat, and rotating the operating knob can pull or push the locking arm to move along the through slot, so that the locking hole or locking slot is separated from or frictionally contacted with the contour detection needle, so as to lock the contour detection needle.

5. The false lumen measuring ruler for type A aortic dissection root according to claim 4, characterized in that: A support tube is nested in the insertion hole, and the contour detection needle passes through the locking arm and the shaping ruler body along the support tube.

6. The false lumen measuring ruler for type A aortic dissection root according to claim 5, characterized in that: The aperture of the locking hole or locking groove is larger than the aperture of the support tube.

7. The false lumen measuring ruler for type A aortic dissection root according to claim 6, characterized in that: The locking arm is made of rubber or fiber.

8. The false lumen measuring ruler for type A aortic dissection root according to claim 5, characterized in that: The contour detection needle is a circular or long strip structure, and one end thereof passing through the insertion hole or the support tube is a detection end, and the detection end is an arc shape.

9. The false lumen measuring ruler for type A aortic dissection root according to claim 8, characterized in that: The other end of the contour detection needle is provided with a needle handle, and the width or diameter of the needle handle is greater than the aperture of the support tube.

10. The false lumen measuring ruler for type A aortic dissection root according to claim 2, characterized in that: A scale is arranged on the side wall of the shaping ruler body or the shaping plate.

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