Annular tissue measuring tool

Abstract

The invention discloses an annular tissue measuring tool which comprises an operating part, a measuring part and a measuring sleeve, the operating part comprises a finger ring and a holding piece, the measuring part comprises an end piece and an end piece connecting piece, and the annular tissue measuring tool is provided with a controlled disengaging mechanism. The controlled separation mechanism can achieve controlled separation of the end piece and the end piece connecting piece. The annular tissue measuring tool does not need to introduce additional surgical instruments, is convenient and fast, can safely, accurately and effectively measure the annular tissue, is safely and conveniently separated from the annular tissue after measurement is finished and smoothly withdrawn from the abdominal cavity of a patient, is safe, efficient and convenient, and has a wide application prospect. The complexity of multi-instrument operation is reduced, the operation process is accelerated, and the operation efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the field of medical instruments, and in particular relates to an annular tissue measuring tool, which is suitable for accurately measuring the outer diameter or circumference of annular tissue of a human body during surgery. Background Art

[0002] The annular tissue measurement tools in the prior art mainly rely on physical touch or external imaging equipment for measurement. Currently, the external imaging equipment has poor measurement accuracy and is expensive. However, there are few existing physical touch measurement operation tools.

[0003] Patent CN219645717U discloses a circular tissue measuring tool with locked measurement readings. The background technology section has already detailed the process of using the circular tissue measuring tool for measurement, which will not be repeated here. After the measurement of the measuring tool is completed, the operator needs to use other surgical instruments (such as surgical forceps) to pry apart the end piece of the measuring piece and the magnetic surface of the magnetic part before the measuring tool can be withdrawn from the circular tissue and then from the patient's abdominal cavity. On the one hand, this operation requires the use of other surgical instruments, which is inconvenient to operate and affects the progress of the operation; on the other hand, there are currently no specially adapted surgical instruments in clinical practice to perform the operation, and the surgical forceps used are restricted by the materials they are made of. During the prying process, they will be adsorbed by the magnetic parts, which interferes with the operation process and brings many inconveniences.

[0004] Therefore, a more efficient, convenient and safe annular tissue measurement tool is urgently needed. Summary of the invention

[0005] In order to overcome the shortcomings of the prior art, the present invention proposes a new type of annular tissue measurement tool. The tool is convenient and quick, and does not require the introduction of additional surgical instruments by setting a controlled detachment mechanism and an adjustable measuring ring structure. It can safely, accurately and effectively achieve the measurement of annular tissue, and can safely and conveniently detach from the annular tissue after the measurement, and can be smoothly withdrawn from the patient's abdominal cavity. The annular tissue measurement tool is safe, efficient and convenient, and can speed up the surgical process and improve surgical efficiency.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is:

[0007] A ring-shaped tissue measurement tool comprises an operating part, a measuring part and a measuring sleeve, wherein the operating part comprises a finger ring and a holding piece, the measuring part comprises an end piece and an end piece connecting piece, and the ring-shaped tissue measurement tool is provided with a controlled detachment mechanism, wherein the controlled detachment mechanism can realize controlled separation of the end piece and the end piece connecting piece.

[0008] Furthermore, the end piece connector includes a wedge-shaped slider and a fixing block.

[0009] Furthermore, the controlled disengagement mechanism includes a disengagement button arranged on the holding piece, the disengagement button is connected to the push rod in the measuring sleeve through a connecting rod, the push rod is remotely linked to a wedge-shaped slider, and the separation of the end piece and the end piece connector is achieved through the sliding of the wedge-shaped slider.

[0010] Furthermore, the connecting rod is in a "Y" shape to ensure smooth pushing of the push rod.

[0011] Furthermore, the wedge-shaped slider includes a magnetic docking surface, a wedge-shaped transition surface and a transition portion fixedly connected to the push rod. The wedge-shaped slider matches the shape of the docking surface of the semi-tubular fixed block to enclose an approximately tubular shape.

[0012] Furthermore, the end piece and the magnetic attraction docking surface are made of magnetic material.

[0013] As another alternative, further, the end piece and the fixed block are made of magnetic material, and the wedge-shaped sliding block is made of non-magnetic material.

[0014] As another alternative, the controlled disengagement mechanism includes a power supply and metal contacts arranged in the holding piece, and a coil arranged in the end piece. The disengagement button controls the on and off of the power supply and the coil, thereby realizing the electromagnetic force control between the end piece and the end piece connector, and further realizing the adsorption or separation of the end piece and the end piece connector.

[0015] As another alternative, the controlled disengagement mechanism includes a power supply and metal contacts arranged in the holding piece, and a coil arranged on the end piece connector. The disengagement button controls the on and off of the power supply and the coil, thereby realizing the electromagnetic force control between the end piece and the end piece connector, and further realizing the adsorption or separation of the end piece and the end piece connector.

[0016] Furthermore, the measuring part comprises a transmission inner core and a memory alloy wire, and the memory alloy wire can be extended or retracted along the measuring sleeve to form a closed measuring ring around the annular tissue.

[0017] Furthermore, the memory alloy wire has a pre-formed circular structure to ensure that it can fit the circumference of the annular tissue.

[0018] Furthermore, the operating portion is provided with a locking key for locking the moving position of the transmission inner core for easy reading.

[0019] Furthermore, the operating part and the measuring part are equipped with micro sensors, which can monitor the circumference data of the annular tissue in real time and display the measurement results on an external device through wireless transmission.

[0020] The present invention includes but is not limited to the following technical effects:

[0021] The present invention provides a controlled detachment mechanism and an adjustable measuring ring structure, which does not require the introduction of additional surgical instruments and is convenient and quick. It can safely, accurately and effectively achieve the measurement of annular tissue, and can safely and conveniently detach from the annular tissue after the measurement is completed, and can be smoothly withdrawn from the patient's abdominal cavity. The annular tissue measuring tool is safe, efficient and convenient, and reduces the complexity of multi-instrument operation, speeds up the surgical process and improves surgical efficiency.

[0022] In at least one embodiment of the present invention, a wedge-shaped slider is installed on one side of the measuring ring. The position of the slider can be adjusted by sliding operation, thereby realizing the opening and closing control of the measuring ring, overcoming the shortcomings of the existing annular measuring tools that are inconvenient to remove from the annular tissue and require additional surgical instruments. In addition, this method has a simple structure and does not rely on external power drive.

[0023] At least one embodiment of the present invention adopts a magnetic buckle design. When the tool is detached, the magnetic field force changes to ensure rapid separation without damaging the tissue. This design not only improves the convenience of the detachment operation, but also effectively avoids accidental adsorption of other metal instruments. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the structure of a measuring tool according to the first embodiment of the present invention.

[0025] Figure 2 It is a schematic diagram of a partial half section of the proximal end in the first embodiment.

[0026] Figure 3 It is a schematic diagram of a partial half-section of the distal end in the first embodiment.

[0027] Figure 4 It is an enlarged schematic diagram of the wedge-shaped slider in the first embodiment.

[0028] Figure 5 It is a schematic diagram of the structure of a measuring tool according to the third embodiment of the present invention.

[0029] Figure 6 It is a schematic diagram of a partial half section of the proximal end in the third embodiment.

[0030] Figure 7 It is a schematic diagram of the proximal interior in the third embodiment.

[0031] Figure 8 It is a schematic diagram of a partial half-section of the distal end in the third embodiment.

[0032] Fig. 9 It is a local schematic diagram of the far end in the fourth embodiment.

[0033] Reference numerals

[0034] Operating part 10, finger ring 11, locking button 12, holding piece 13, avoidance opening 131, power cavity 132, disengagement button 14, connecting rod 15, reset spring 151, metal contact 152, power supply 153, wire 154, transmission rod 16, transmission inner core 161, push rod 17, end piece connector 18, wedge-shaped slider 180, magnetic docking surface 181, wedge-shaped transition surface 182, transition part 183, end piece 19, measuring part 20, fixing block 21, measuring sleeve 22, memory alloy wire 23, coil 24. DETAILED DESCRIPTION

[0035] In order to enable those skilled in the art to better understand the present invention, and thus to more clearly define the scope of the present invention, the present invention is described in detail with respect to some specific embodiments of the present invention. It should be noted that the following are only some specific implementation methods of the present invention, which are only part of the embodiments of the present invention, wherein the specific and direct description of the relevant structure is only for the convenience of understanding the present invention, and each specific feature does not naturally and directly limit the scope of implementation of the present invention. The conventional selection and replacement made by those skilled in the art under the guidance of the present invention should be regarded as within the scope of the present invention.

[0036] In the present invention, the distal end refers to the end of the annular tissue measuring tool that is away from the operator during normal use, and the proximal end is usually the end close to the operator. The proximal end and the distal end are relative to describe relative positions and do not refer to a specific part.

[0037] A circular tissue measuring tool is used to measure the outer diameter or circumference of circular tissue in the human body during surgery, for example, measuring the outer circumference of the esophagus at the periphery of the human body, so as to provide a reference for the specifications of a magnetic ring used to treat weakened or failed lower esophageal sphincter function.

[0038] After the measurement is completed, the measuring tool is easy to be withdrawn from the annular tissue and is easy to operate, that is, the end piece 19 can be separated from the end piece connector 18 without using surgical instruments, so that it is easy to withdraw from the patient's abdominal cavity.

[0039] Embodiment 1

[0040] like Figure 1-3As shown, the annular tissue measuring tool mainly includes an operating part 10, a measuring part 20 and a measuring sleeve 22. The operating part 10 is used by the operator to hold and operate the measuring tool. The measuring part 20 measures the outer diameter or circumference of the human annular tissue. The measuring sleeve 22 constitutes a transmission and electrical connection channel between the operating part 10 and the measuring part 20. The operating part 10 mainly includes a finger ring 11, a locking key 12, a holding piece 13, a disengagement button 14, a connecting rod 15, and a transmission rod 16. The holding piece 13 is provided with a groove in the length direction. The transmission rod 16 is arranged in the groove and can slide. The proximal end of the transmission rod 16 is fixedly connected to the ring finger 11 so as to drive the transmission rod 16 to move relative to the holding piece 13 through the finger ring 11. The distal end of the transmission rod 16 is fixedly connected to the transmission inner core 161, and the transmission inner core 161 can drive the memory alloy wire 23 on the measuring part 20 to extend or withdraw along the measuring sleeve 22. The holding member 13 is also provided with a locking key 12, which can lock the position of the transmission rod 16 to facilitate measurement and reading. The holding member 13 is also provided with an escape opening 131, and the two ends of the "Y"-shaped connecting rod 15 are forked and pass through the escape opening 131 to be fixedly connected to the disengagement button 14, and the other end of the connecting rod 15 extends through the measuring sleeve 22 and is fixedly connected to the push rod 17. By pushing the disengagement button 14, the connecting rod 15 can be driven to move, and then the push rod 17 drives the wedge-shaped slider 180 to slide.

[0041] like Figure 3 As shown, the measuring part 20 mainly includes an end piece 19, a memory alloy wire 23 fixedly connected to the end piece 19, a transmission inner core 161 and a push rod 17 sleeved in the measuring sleeve 22, a fixed block 21 fixedly arranged on the measuring sleeve 22, and a wedge-shaped slider 180 slidable along the length direction of the measuring sleeve 22, and the wedge-shaped slider 180 and the fixed block 21 enclose an end piece connector 18. The measuring sleeve 22 is a multi-cavity tube body, and the transmission inner core 161 and the push rod 17 are arranged almost parallel in different cavities of the measuring sleeve 22.

[0042] like Figure 3-4 As shown, the wedge-shaped slider 180 includes a magnetic docking surface 181, a wedge-shaped transition surface 182 and a transition portion 183 fixedly connected to the push rod 17. The wedge-shaped slider 180 matches the shape of the docking surface of the semi-tubular fixed block 21, and the enclosed shape is approximately tubular and has a middle channel. The middle channel constitutes a sliding channel for the transmission inner core 161 and the memory alloy wire 23.

[0043] The specific use process of this embodiment is that when measuring the annular tissue, the transmission rod 16 is pushed by the finger ring 11, and the transmission rod 16 drives the transmission inner core 161 to slide toward the distal end, and the memory alloy wire 23 fixed at the distal end of the transmission inner core 161 is driven to extend out of the measuring sleeve 22 and fit the human annular tissue. Since the memory alloy wire 23 is pre-processed to be approximately circular, it can circle around the annular tissue when measuring the annular tissue. Since the end piece 19 and the magnetic attraction docking surface 181 are made of magnetic materials (for example, the end piece 19 is a permanent magnet, and the magnetic attraction docking surface 181 is a metal magnetic material), the end piece 19 is adsorbed with the magnetic attraction docking surface 181, thereby forming a closed loop around the human annular tissue, and then the finger ring 11 is pulled with appropriate force so that the closed loop is closely attached to the human annular tissue. Then, the position of the transmission rod 16 is locked by the locking key 12, and the outer diameter circumference of the human annular tissue can be accurately obtained based on the scale set on the transmission rod 16.

[0044] After the measurement is completed, the locking key 12 is kept in the locked state, and the disengagement button 14 is pushed to drive the connecting rod 15 to move, and then the push rod 17 drives the wedge-shaped slider 180 to slide toward the distal end, so that the closed ring is squeezed from a nearly circular shape to a nearly elliptical shape, and the end piece 19 pops out from the magnetic docking surface 181 due to the increase in the closed ring stress. In addition, the wedge-shaped transition surface 182 of the wedge-shaped slider 180 makes the disengagement process of the end piece 19 smoother, and the surgeon does not need to use other surgical instruments (such as surgical forceps) for operation, shortening the operation time and reducing the risk caused by other surgical instruments entering the human body. In this implementation process, the locking key 12 can also be kept in the open state. At this time, while pulling the finger ring 11 back with appropriate force, the disengagement button 14 is pushed toward the distal end, so that the radius of the closed ring is reduced, and the closed ring is squeezed from a nearly circular shape to a nearly elliptical shape, and the end piece 19 is easy to pop out from the magnetic docking surface 181. Finally, the memory alloy wire 23 is withdrawn into the measuring sleeve 22 by pulling the finger ring 11, so that the measuring tool is withdrawn from the annular tissue and then withdrawn from the abdominal cavity of the patient.

[0045] Second embodiment:

[0046] The second embodiment is basically the same as the first embodiment, and the same contents are not repeated here. The main difference is that in this embodiment, the end piece 19 and the fixed block 21 in the end piece connector 18 are made of magnetic materials, and the wedge-shaped slider 180 is made of non-magnetic materials, for example, the wedge-shaped slider 180 is made of titanium, titanium alloy, austenitic stainless steel, non-magnetic tungsten steel, etc. This setting makes it possible for the wedge-shaped slider 180 to be pushed after the measurement is completed, and the magnetic attraction between the end piece 19 and the fixed block 21 is reduced due to the reduction in relative area (i.e., the reduction in the magnetic pole area), and the wedge-shaped transition surface 182 of the wedge-shaped slider 180 increases the distance between the end piece 19 and the fixed block 21, thereby reducing the magnetic attraction between the end piece 19 and the fixed block 21, and the end piece 19 is easy to pop out and detach from the magnetic attraction docking surface 181.

[0047] Third embodiment:

[0048] Different from the above embodiment, Figure 5-8 As shown, the measuring tool in this embodiment mainly includes an operating part 10, a measuring part 20 and a measuring sleeve 22. The operating part 10 mainly includes a finger ring 11, a locking button 12, a holding piece 13, a disengagement button 14, a connecting rod 15, a transmission rod 16, a metal contact 152 and a power supply 153 arranged in the holding piece 13. A power supply cavity 132 is arranged in the holding piece 13, and the power supply 153 is fixed in the power supply cavity 132. The power supply 153 is preferably formed by multiple batteries in series. One end of the connecting rod 15 is fixedly connected to the disengagement button 14, and the other end is provided with a metal contact 152. When the disengagement button 14 is pressed into place, the metal contact 152 on the connecting rod 15 makes the wire (not shown in the figure) connected to the power supply 153 conduct. When the disengagement button 14 rebounds and resets under the action of the reset spring 151, the metal contact 152 on the connecting rod 15 disconnects the wire loop connected to the power supply 153. The other end of the wire is passed through the measuring sleeve 22 and connected to the end piece 19 on the measuring part 20. Specifically, a multi-turn coil 24 is arranged in the end piece 19. When the power supply 153 is connected to the coil 24 through the wire, the end piece 19 has magnetism and is adsorbed on the end piece connector 18 made of magnetic material due to the electromagnetic effect; when the adsorption connection between the end piece 19 and the end piece connector 18 needs to be disconnected, the wire loop is disconnected, the magnetism of the end piece 19 disappears, and the end piece 19 is separated from the end piece connector 18.

[0049] The specific use process of this embodiment is as follows: when measuring the annular tissue, the transmission rod 16 is pushed by the finger ring 11, and the transmission rod 16 drives the transmission inner core 161 to slide toward the distal end, and the memory alloy wire 23 fixed at the distal end of the transmission inner core 161 is driven to extend out of the measuring sleeve 22 and fit the human annular tissue. Since the memory alloy wire 23 is pre-processed to be approximately circular, it can be wrapped around the annular tissue when measuring the annular tissue. Then, the disengagement button 14 is pressed, and the coil 24 in the end piece 19 generates a magnetic field after being energized, and is adsorbed with the end piece connector 18 made of magnetic material to form a closed loop around the human annular tissue. Then, the finger ring 11 is pulled with appropriate force to make the closed loop closely fit the human annular tissue, and then the outer diameter or circumference of the human annular tissue is obtained by reading. After the measurement is completed, the disengagement button 14 is released. Under the action of the reset spring 151, the disengagement button 14 is reset and the metal contact 152 on the connecting rod 15 disconnects the wire loop connected to the power supply 153, the coil 24 is disconnected from the power supply 153, and the end piece 19 and the end piece connector 18 are separated due to the disappearance of the magnetic attraction. Finally, the memory alloy wire 23 is withdrawn into the measuring sleeve 22 by pulling the finger ring 11, so that the measuring tool is withdrawn from the annular tissue and then withdrawn from the patient's abdominal cavity. Compared with the above-mentioned embodiment, this embodiment and its variant have a fast response speed, and the measuring part has no moving parts, which is more stable.

[0050] Fourth embodiment:

[0051] The same parts as those in the third embodiment will not be described in detail. Fig. 9 As shown, in this embodiment, a coil 24 connected to the power supply 153 is also provided in the end piece connector 18, and the end piece 19 is adsorbed or separated by controlling the circuit conduction of the coil 24. In addition, as a variation of this embodiment, a coil or a permanent magnet may also be provided in the end piece 19, so as to utilize the opposite charges attract and the like charges repel to achieve greater adsorption force when attracting, and to utilize the repulsion to achieve rapid separation when separating.

[0052] In addition, for the above embodiment, a micro sensor can be provided in the measuring part 20 to monitor the circumference data of the annular tissue in real time. The sensor is connected to an external data processor, and the result is displayed on the surgical display screen via wireless transmission to improve the measurement accuracy and the operation efficiency during surgery.

[0053] It should be understood that the present invention is not limited to the structures described above and shown in the drawings, and various combinations, modifications and changes can be made without departing from the scope thereof. For example, the combination of the first embodiment of the annular tissue measurement tool in the present invention with the third embodiment also falls within the scope of the protection intended by the present invention. After considering the invention disclosed in the specification and practice, those skilled in the art will easily think of other embodiments of the present invention. It should be pointed out that the specification and the examples are only to be regarded as exemplary, and the present invention is intended to cover any variation, use or adaptive change of the present invention, which follows the general principles of the present invention and includes common knowledge or conventional technical means in the technical field not disclosed in the present invention.

Claims

1. A ring-shaped tissue measurement tool, comprising an operating part, a measuring part and a measuring sleeve, wherein the operating part comprises a finger ring and a holding part, and the measuring part comprises an end piece and an end piece connector, characterized in that: The annular tissue measurement tool is provided with a controlled detachment mechanism, which can achieve controlled separation of the end piece and the end piece connector.

2. The annular tissue measuring tool according to claim 1, characterized in that: The end piece connector includes a wedge-shaped slider and a fixed block; the controlled disengagement mechanism includes a disengagement button arranged on the holding piece, the disengagement button is connected to the push rod in the measuring sleeve through a connecting rod, the push rod is remotely linked to the wedge-shaped slider, and the separation of the end piece and the end piece connector is achieved by sliding the wedge-shaped slider.

3. The annular tissue measuring tool according to claim 2, characterized in that: The wedge-shaped slider comprises a magnetic attraction docking surface, a wedge-shaped transition surface and a transition portion fixedly connected to the push rod. The wedge-shaped slider matches the docking surface of the semi-tubular fixed block in shape to enclose an approximately tubular shape.

4. The annular tissue measuring tool according to claim 2 or 3, characterized in that: The magnetically attracted butt joint surfaces on the end piece and the wedge-shaped slider are made of magnetic material; or, the end piece and the fixed block are made of magnetic material, and the wedge-shaped slider is made of non-magnetic material.

5. The annular tissue measuring tool according to claim 1 or 2, characterized in that: The controlled disengagement mechanism includes a power supply and a metal contact arranged in the holding piece, and a coil arranged in the end piece. The disengagement button controls the on and off of the power supply and the coil, realizes the electromagnetic force control between the end piece and the end piece connector, and further realizes the adsorption or separation of the end piece and the end piece connector.

6. The annular tissue measuring tool according to claim 1 or 2, characterized in that: The controlled disengagement mechanism includes a power supply and a metal contact arranged in the holding piece, and a coil arranged in the end piece connector. The disengagement button controls the on and off of the power supply and the coil, realizes the electromagnetic force control between the end piece and the end piece connector, and further realizes the adsorption or separation of the end piece and the end piece connector.

7. The annular tissue measurement tool according to claim 1, characterized in that: The measuring part comprises a transmission inner core and a memory alloy wire, and the memory alloy wire can be extended or retracted along the measuring sleeve to form a closed measuring ring around the annular tissue.

8. The annular tissue measurement tool according to claim 7, characterized in that: The memory alloy wire has a pre-formed circular structure to ensure that it can fit the circumference of the annular tissue.

9. The annular tissue measurement tool according to claim 1, characterized in that: The operating part is provided with a locking key for locking the moving position of the transmission inner core for easy reading.

10. The annular tissue measurement tool according to claim 9, characterized in that: The operating part and the measuring part are equipped with micro sensors, which can monitor the circumference data of the annular tissue in real time and display the measurement results on an external device through wireless transmission.

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