Pericardial patch measuring device

Abstract

The utility model discloses a pericardium patch measuring device which comprises a handle, a handle sliding block and a range finder, a graduated scale extending from the head of the handle to the tail of the handle is arranged on the handle, the handle sliding block and the range finder are arranged on the handle in a sleeved mode, the handle sliding block is connected with the range finder, and the handle sliding block and the range finder can move in the extending direction of the handle. The handle sliding block moves back and forth on the handle so that the range finder can be driven to be unfolded or folded. According to the pericardial patch measuring device, the distance measuring device is driven to be unfolded or folded through the front-back movement of the handle sliding block on the handle, and therefore the size of a pericardial patch is measured through unfolding or folding of the distance measuring device. According to the utility model, accurate measurement of the size of the pericardium patch can be realized by adjusting the handle sliding block, one-hand operation, real-time reading and multi-time measurement can be realized without replacing instruments, mismatching of the size of the patch is not easily caused, the operation time can be obviously shortened, and the operation success rate is obviously improved.

Description

Technical Field

[0001] This utility model relates to the technical field of medical supplies, and in particular to a pericardial patch measuring device. Background Technology

[0002] In surgeries requiring pericardial patch trimming, accurate measurement of the patch size is crucial. For example, in tricuspid valve patch augmentation, it's necessary to remove unsuitable diseased leaflets and replace them with a appropriately sized pericardial patch. However, in clinical practice, suitable, precise measuring instruments are unavailable. Patients must rely on their experience and various sized valve measuring devices or ring measuring devices to repeatedly estimate the patch size qualitatively. This procedure is highly uncertain and subjective, and there's a possibility that a mismatch in patch size could worsen tricuspid stenosis or regurgitation, increasing the burden on healthcare providers. Utility Model Content

[0003] Therefore, it is necessary to provide a pericardial patch measuring device to address the technical problem that existing technologies cannot accurately measure pericardial patches.

[0004] This utility model provides a pericardial patch measuring device, including: a handle, a handle slider, and a rangefinder. A scale extending from the head to the tail of the handle is provided on the handle. The handle slider and the rangefinder are fitted on the handle. The handle slider is connected to the rangefinder, and the handle slider and the rangefinder can move along the extension direction of the handle. The back-and-forth movement of the handle slider on the handle can drive the rangefinder to open or close.

[0005] Furthermore, the rangefinder includes a first ranging foot and a second ranging foot. The front end of the first ranging foot and the front end of the second ranging foot are respectively connected to the handle slider. The back-and-forth movement of the handle slider on the handle can drive the first ranging foot and the second ranging foot to unfold or close.

[0006] Furthermore, the rangefinder also includes a first auxiliary foot, a second auxiliary foot, and a fixing block. The fixing block is fixedly connected to the tail of the handle. One end of the first auxiliary foot is hinged to the fixing block, and the other end is hinged to the first rangefinder foot. One end of the second auxiliary foot is hinged to the fixing block, and the other end is hinged to the second rangefinder foot.

[0007] Furthermore, the rangefinder also includes a rangefinder slider, which is fitted onto the handle and can move along the extension direction of the handle. The handle slider is fixedly connected to the rangefinder slider, and the front end of the first rangefinder leg is hinged to the rangefinder slider, and the front end of the second rangefinder leg is hinged to the rangefinder slider.

[0008] Furthermore, it also includes a linkage, through which the handle slider is connected to the rangefinder.

[0009] Furthermore, the handle is cylindrical.

[0010] Furthermore, the diameter of the head of the handle is larger than the diameter of the middle part of the handle.

[0011] Furthermore, the length of the scale is 5-6 centimeters.

[0012] Furthermore, the handle is fixedly connected to the scale, or the scale is engraved on the surface of the handle.

[0013] Furthermore, the scale is provided with limit blocks at both ends, and the handle slider is located between the two limit blocks.

[0014] This invention relates to a pericardial patch measuring device. The device uses a slider on a handle to move back and forth, driving a rangefinder to open or close, thereby measuring the size of the pericardial patch. This invention enables precise measurement of the pericardial patch size by adjusting the slider, and can be operated with one hand, providing real-time readings. Multiple measurements can be taken without changing instruments, reducing the risk of patch size mismatch, significantly shortening surgical time, and noticeably improving surgical success rates. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a pericardial patch measuring device according to an embodiment of the present invention;

[0016] Figure 2 This is a schematic diagram of the unfolded rangefinder according to an embodiment of the present invention;

[0017] Figure 3 This is a simplified schematic diagram of a rangefinder according to an embodiment of the present invention.

[0018] Figure 4 for Figure 3 A further simplified diagram.

[0019] Marker description

[0020] 1. Handle; 11. Head; 12. Middle; 2. Handle slider; 3. Rangefinder; 31. First rangefinder foot; 32. Second rangefinder foot; 33. First auxiliary foot; 34. Second auxiliary foot; 35. Fixing block; 36. Rangefinder slider; 4. Scale; 5. Connecting rod. Detailed Implementation

[0021] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. Identical components are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, while the terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0022] like Figure 1 The diagram shows a schematic of a pericardial patch measuring device according to an embodiment of the present invention, including: a handle 1, a handle slider 2, and a rangefinder 3. A scale 4 extending from the head to the tail of the handle 1 is provided on the handle 1. The handle slider 2 and the rangefinder 3 are fitted on the handle 1. The handle slider 2 is connected to the rangefinder 3, and the handle slider 2 and the rangefinder 3 can move along the extension direction of the handle 1. The back-and-forth movement of the handle slider 2 on the handle 1 can drive the rangefinder 3 to open or close.

[0023] This invention can be applied to various surgeries requiring pericardial patch trimming, improving the safety and precision of these procedures. In particular, this invention is applied to tricuspid valve patch augmentation surgery to further enhance the safety and precision of the procedure.

[0024] Specifically, the handle slider 2 and the rangefinder 3 are both fitted onto the handle 1 and move along the extension direction of the handle 1. The movement of the handle slider 2 drives the rangefinder 3 to open or close. The rangefinder 3 is used to measure the size of the pericardial patch.

[0025] The starting position of the handle slider 2 is located at the starting value of the scale 4, for example, at the value 0 of the scale 4.

[0026] During measurement, the rangefinder 3 is brought into contact with the pericardial patch, and then the handle slider 2 is pushed to move, thereby driving the rangefinder 3 to unfold. When the rangefinder 3 unfolds to align with the pericardial patch, the movement of the handle slider 2 is stopped. At this point, the position value of the handle slider 2 on the scale 4 is read, which gives the size of the pericardial patch. Different patients can have their specific pericardial patch size measured by adjusting the position of the handle slider 2, achieving the goal of accurate measurement.

[0027] The relationship between the extended length of the rangefinder 3 and the moving distance of the handle slider 2 can be determined through calibration. That is, through multiple tests, the extended length of the rangefinder 3 is measured when the handle slider 2 moves a certain distance. This extended length is marked on the scale 4 corresponding to the handle slider 2 at this time, and used as the scale of the scale 4. The extended lengths measured by the handle slider 2 at multiple moving distances are marked on the scale 4 of the handle, thus completing the calibration of the scale 4.

[0028] The extended length of the rangefinder 3 and the moving distance of the handle slider 2 can also be determined by trigonometric functions based on the trigonometric relationship between the rangefinder 3 and the handle slider 2, thereby directly completing the scale calibration on the scale 4.

[0029] Among them, the pericardial patch is preferably a tricuspid valve patch.

[0030] This invention relates to a pericardial patch measuring device. The device uses a slider on a handle to move back and forth, driving a rangefinder to open or close, thereby measuring the size of the pericardial patch. This invention enables precise measurement of the pericardial patch size by adjusting the slider, and can be operated with one hand, providing real-time readings. Multiple measurements can be taken without changing instruments, reducing the risk of patch size mismatch, significantly shortening surgical time, and noticeably improving surgical success rates.

[0031] like Figure 1 The following is a pericardial patch measuring device according to another embodiment of the present invention, comprising: a handle 1, a handle slider 2, and a rangefinder 3. A scale 4 extending from the head to the tail of the handle 1 is provided on the handle 1. The handle slider 2 and the rangefinder 3 are fitted on the handle 1. The handle slider 2 is connected to the rangefinder 3, and the handle slider 2 and the rangefinder 3 can move along the extension direction of the handle 1. The back-and-forth movement of the handle slider 2 on the handle 1 can drive the rangefinder 3 to open or close.

[0032] The rangefinder 3 includes a first ranging foot 31 and a second ranging foot 32. The front ends of the first ranging foot 31 and the second ranging foot 32 are respectively connected to the handle slider 2. The handle slider 2 moves back and forth on the handle 1, which can drive the first ranging foot 31 and the second ranging foot 32 to open or close.

[0033] The rangefinder 3 also includes a first auxiliary leg 33, a second auxiliary leg 34, and a fixing block 35. The fixing block 35 is fixedly connected to the tail of the handle 1. One end of the first auxiliary leg 33 is hinged to the fixing block 35, and the other end is hinged to the first ranging leg 31. One end of the second auxiliary leg is hinged to the fixing block 35, and the other end is hinged to the second ranging leg 32.

[0034] The rangefinder 3 also includes a rangefinder slider 36, which is sleeved on the handle 1. The rangefinder slider 36 can move along the extension direction of the handle 1. The handle slider 2 is fixedly connected to the rangefinder slider 36. The front end of the first rangefinder support 31 is hinged to the rangefinder slider 36, and the front end of the second rangefinder support 32 is hinged to the rangefinder slider 36.

[0035] It also includes a connecting rod 5, through which the handle slider 2 is connected to the rangefinder 3.

[0036] Specifically, the handle slider 2 is connected to one end of the connecting rod 5, and the other end of the connecting rod 5 is connected to the distance measuring slider 36 of the rangefinder 3. Both the distance measuring slider 36 and the handle slider 2 are fitted onto the handle 1, with the distance measuring slider 36 located near the tail of the handle 1. Figure 2 As shown, when the handle slider 2 slides towards the tail of the handle 1, it pushes the distance measuring slider 36 to slide together. As the distance measuring slider 36 slides towards the tail of the handle 1, the first auxiliary leg 33 rotates around the fixed block 35 and pushes open the first distance measuring leg 31, and the second auxiliary leg 34 rotates around the fixed block 35 and pushes open the second distance measuring leg 32. At this time, the first distance measuring leg 31 and the second distance measuring leg 32 unfold as the handle slider 2 slides towards the tail of the handle 1. When the handle slider 2 slides towards the head of the handle 1, it pulls the distance measuring slider 36 to slide together. As the distance measuring slider 36 slides towards the head of the handle 1, the first auxiliary leg 33 rotates around the fixed block 35 and pulls back the first distance measuring leg 31, and the second auxiliary leg 34 rotates around the fixed block 35 and pulls back the second distance measuring leg 32. At this time, the first distance measuring leg 31 and the second distance measuring leg 32 close as the handle slider 2 slides towards the head of the handle 1.

[0037] Figure 3 This is a simplified schematic diagram of the rangefinder according to an embodiment of the present invention. When the handle slider 2 is pushed forward along the scale 4 (in the direction of the arrow), the rangefinder slider 36 moves forward simultaneously, and the rangefinder opens. Since the first rangefinder support 31, the second rangefinder support 32, the first auxiliary support 33, and the second auxiliary support 34 are all of fixed length, they can be... Figure 3 Further simplified to, for example Figure 4 The simplified diagram is shown below. Fixed block 35 is simplified to point A, the position of distance measuring slider 36 is simplified to point P, the end of second distance measuring leg 32 is simplified to point B, the connection point between second auxiliary leg 34 and second distance measuring leg 32 is simplified to point C, the length of second auxiliary leg 34 is m, and the length of CP is n. Therefore, in △ACP, according to the Law of Cosines: cos∠ACP=(m 2 +n 2 -AP 2) / 2mn, where m and n are constants. When AP decreases, cos∠ACP increases. Since the cosine function is decreasing in the interval (0,π), ∠ACP decreases. In △ACP, let ∠CAP = α and ∠APC = β. According to the Law of Sines: sinα / sinβ = n / m = a constant. Since α and β ∈ [0,π / 2], sinα and sinβ > 0, so sinα and sinβ are monotonically increasing functions. Therefore, sinα and sinβ either increase or decrease together, so α and β either increase or decrease together; since ∠ACP is decreasing, α + β is increasing. Therefore, α and β are increasing together, i.e., increasing, i.e., ∠BAP is increasing. Expand the first measuring leg 31 and the second measuring leg 32.

[0038] In some embodiments, the value of the scale 4 gradually increases from the head to the tail of the handle 1, and the starting position of the handle slider 2 is located at the starting value of the scale 4, for example, at the value 0 of the scale 4.

[0039] In some embodiments, the range of motion of the handle slider 2 is within the scale 4, that is, the handle slider 2 only moves within the range of the scale 4.

[0040] During measurement, the first measuring leg 31 and the second measuring leg 32 are brought into contact with the pericardial patch. Then, the handle slider 2 is pushed towards the tail of the handle 1, thereby driving the first measuring leg 31 and the second measuring leg 32 to unfold. When the first measuring leg 31 unfolds to contact one end of the pericardial patch and the second measuring leg 32 contacts the other end of the pericardial patch, the movement of the handle slider 2 is stopped. At this time, the value of the position of the handle slider 2 on the scale 4 is read, which gives the size of the pericardial patch. When adjustment is needed, the handle slider 2 can be moved towards the head or tail of the handle 1 to adjust the unfolding distance D of the first measuring leg 31 and the second measuring leg 32, so as to obtain the accurate value of the pericardial patch.

[0041] In this embodiment, a connecting rod drives the ranging slider, and an auxiliary foot helps the ranging foot to open or close, thereby achieving accurate measurement.

[0042] In one embodiment, the handle 1 is cylindrical.

[0043] This embodiment uses a cylindrical handle for easy gripping.

[0044] In one embodiment, the diameter of the head 11 of the handle 1 is larger than the diameter of the middle portion 12 of the handle 1.

[0045] Specifically, the handle has a cylindrical structure, with a thick head 11 that is threaded, and a slightly narrower middle section 12.

[0046] In this embodiment, the head diameter is set to be larger than the middle diameter, making it easier to grasp and distinguish.

[0047] In one embodiment, the scale 4 is 5-6 cm long.

[0048] Preferably, the length of the ruler 4 is 5 centimeters.

[0049] In one embodiment, the handle 1 is fixedly connected to the scale 4, or the scale 4 is engraved on the surface of the handle 1.

[0050] Specifically, the scale 4 can be set separately and then fixedly connected to the handle 1 by welding, hinge, bolt connection or other means. Alternatively, the scale 4 can be directly engraved on the surface of the handle 1, that is, the scale is engraved on the surface of the handle 1 as the scale 4.

[0051] In one embodiment, the scale 4 is provided with limit blocks at both ends, and the handle slider 2 is located between the two limit blocks.

[0052] Specifically, limit blocks are set at both ends of the scale 4, and the handle slider 2 is placed between the two limit blocks, thereby limiting the range of motion of the handle slider 2 and preventing the excessive movement of the handle slider 2 from pushing the rangefinder 3 out of the handle 1.

[0053] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A pericardial patch measuring device, characterized by, The utility model relates to a kind of range finder, including: Handle (1), handle slider (2) and range finder (3), scale (4) is provided on the handle (1), and it extends from the head of the handle (1) to tail, the handle slider (2) and the range finder (3) are sleeved on the handle (1), the handle slider (2) is connected with the range finder (3), and the handle slider (2) and the range finder (3) can move along the extension direction of the handle (1), the front and back movement of the handle slider (2) on the handle (1) can drive the range finder (3) to open or close.

2. The pericardial patch measurement device of claim 1, wherein, The range finder (3) includes first range finding leg (31) and second range finding leg (32), the front end of the first range finding leg (31) and the front end of the second range finding leg (32) are connected with the handle slider (2) respectively, and the front and back movement of the handle slider (2) on the handle (1) can drive the first range finding leg (31) and the second range finding leg (32) to open or close.

3. The pericardial patch measurement device of claim 2, wherein, The range finder (3) further includes first auxiliary leg (33), second auxiliary leg (34) and fixed block (35), the fixed block (35) is fixedly connected with the tail of the handle (1), one end of the first auxiliary leg (33) is hinged with the fixed block (35), and the other end is hinged with the first range finding leg (31), one end of the second auxiliary leg is hinged with the fixed block (35), and the other end is hinged with the second range finding leg (32).

4. The pericardial patch measurement device of claim 3, wherein, The range finder (3) further includes range finding slider (36), the range finding slider (36) is sleeved on the handle (1), the range finding slider (36) can move along the extension direction of the handle (1), the handle slider (2) is fixedly connected with the range finding slider (36), the front end of the first range finding leg (31) is hinged with the range finding slider (36), and the front end of the second range finding leg (32) is hinged with the range finding slider (36).

5. The pericardial patch measurement device of claim 1, wherein, It further includes connecting rod (5), and the handle slider (2) is connected with the range finder (3) through the connecting rod (5).

6. The pericardial patch measurement device of claim 1, wherein, The handle (1) is cylindrical.

7. The pericardial patch measurement device of claim 6, wherein, The diameter of the head (11) of the handle (1) is greater than the diameter of the middle part (12) of the handle (1).

8. The pericardial patch measurement device of claim 1, wherein, The length of the scale (4) is 5-6 cm.

9. The pericardial patch measurement device of claim 1, wherein, The handle (1) is fixedly connected with the scale (4), or the scale (4) is engraved on the surface of the handle (1).

10. The pericardial patch measurement device of claim 1, wherein, Two ends of the scale (4) are provided with limit blocks, and the handle slider (2) is located between the two limit blocks.

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