A force measuring structure for use on a cant hook

Abstract

This invention relates to the field of medical device technology, and in particular to a force-measuring structure for strabismus hooks, comprising a rod, a mounting cylinder at the front end of the rod, and a hook body; a ring seat is mounted at the front end of the rod body, the ring seat having multiple evenly distributed perforations, and branch tubes are mounted on the inner ends of the ring seat through the perforations, with a confluence ring mounted on the inner ends of several branch tubes, and a spiral tube connected to the inner side of the confluence ring, with a display tube mounted at the end of the spiral tube, extending through the rod body to the outside; the mounting cylinder is located at the front end of the rod body, and a range ring is fitted around the outside of the rod body near the mounting cylinder, with the outer portion of the display tube embedded in the outer surface of the range ring, the display tube protruding to the outside of the range ring and its end flush with the ring; an elastic sheet is mounted on the outer side of the rod body corresponding to the ring seat. This structure is reasonably designed, and the force-measuring structure can be effectively applied to strabismus hooks, obtaining relatively accurate traction values ​​during actual force measurement, which is beneficial for surgical operations.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to a force-measuring structure for use on a strabismus hook. Background Technology

[0002] A strabismus hook is a surgical instrument primarily used to lift muscle tissue. It is shaped like a long, thin, curved hook with one end at a right or oblique angle and the other end in a hook shape. It can pass through the surgical incision to lift muscle tissue. Strabismus hooks are usually made of materials such as stainless steel or alloys, with a smooth surface that will not cause scratches or damage to the patient's tissue.

[0003] During surgical procedures, when surgeons use the strabismus hook to pull muscles, they may need to know the pulling force at that moment. Traditional methods rely on the surgeon's own pulling force for a vague assessment, and the application of force varies among surgeons, hindering the surgical process. Therefore, to achieve uniform traction force on the same muscle tissue—that is, to ensure consistent muscle traction—it is necessary to quantify and label the pulling force of the strabismus hook. This would allow for real-time display of the pulling force value when the strabismus hook pulls muscle tissue. We propose a force-measuring structure for the strabismus hook. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a force-measuring structure for strabismus hooks. This force-measuring structure can be effectively applied to strabismus hooks and obtain more accurate traction values ​​during actual force measurement, which is beneficial for surgical procedures.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a force measuring structure for a slant hook, comprising a rod, a mounting cylinder and a hook body disposed at the front end of the rod;

[0006] The rod body is a hollow conical rod. A ring seat is installed at the front end of the rod body. The ring seat has a plurality of evenly distributed perforations. A branch pipe is installed on the inner end of the ring seat through the perforations. A busbar ring is installed on the inner end of several branch pipes. A spiral tube is connected to the inner side of the busbar ring. A display tube is installed at the end of the spiral tube. The display tube extends through the rod body to the outside.

[0007] The front end of the rod is provided with a mounting cylinder, and a range ring is sleeved on the outside of the rod near the mounting cylinder. The tube portion of the display tube extending to the outside is embedded in the outer surface of the range ring, and the display tube is exposed to the outside of the range ring with its ends flush. An elastic plate is installed on the outside of the rod corresponding to the ring seat, and several movable rods arranged in a circumferential array are installed on the inner side of the elastic plate. A piston is connected to the inner end of each movable rod, and both the movable rod and the piston extend into the branch tube. The piston is in close contact with the inner wall of the branch tube.

[0008] A rubber rod is installed in the middle of the outer surface of the elastic sheet, and the end of the rubber rod is connected to the hook body; the branch tube, the manifold ring, the spiral tube and the interior of the display tube together form a fluid cavity, which is filled with fluid.

[0009] Preferably, a connecting pipe is fixedly installed at the rear end of the spiral tube. The connecting pipe is arc-shaped, and its upper end is connected to the display tube.

[0010] Preferably, the range ring has a scale line at one end corresponding to the outer side of the display tube, and the end of the scale line near the mounting cylinder is the zero mark.

[0011] Preferably, an inner support rod is installed at the rear end of the rod body, and the outer wall of the inner support rod abuts against the spiral tube.

[0012] Preferably, the perforation is inclined, the outer end of the branch tube is also bent, and the movable rod and piston extend into the interior of the branch tube and are engaged with each other.

[0013] Preferably, the outer edge of the inner side of the elastic sheet is fixedly connected to the ring seat, and when the hook moves back and forth, it drives the movable rod and piston to move back and forth inside the branch tube.

[0014] Preferably, a fluorescent lamp is provided on the rear side of the outer ring surface of the measuring ring away from the display tube. The measuring ring is transparent, and the fluorescence can illuminate the display tube to display the reading of the corresponding scale line.

[0015] Compared with the prior art, the present invention has the following beneficial effects: When the slant hook is pulled, the hook body is subjected to force and drives the rubber rod and elastic plate to expand outward in sequence. As the elastic plate expands outward, the elastic plate drives the movable rod and piston to move outward inside the branch tube. At this time, the fluid inside the branch tube, return ring, spiral tube and display tube moves outward, and the fluid bubble in the part of the display tube corresponding to the range ring moves to the rear end. At this time, the pulling force value can be quickly read according to the position of the scale line corresponding to the bottom of the fluid bubble. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the present invention;

[0017] Figure 2 This is a schematic diagram of the bottom structure of the present invention;

[0018] Figure 3 This is a schematic diagram showing the structural breakdown of the present invention;

[0019] Figure 4 This is a schematic diagram of the spiral flow guide of the present invention;

[0020] Figure 5 This is a schematic diagram of the piston mounting structure of the present invention;

[0021] Figure 6 This is a side sectional view of the present invention;

[0022] Figure 7 This is a schematic diagram of the rod structure of the present invention.

[0023] In the diagram: 1. Rod; 2. Range ring; 3. Mounting cylinder; 4. Elastic plate; 5. Rubber rod; 6. Hook; 7. Display tube; 8. Inner support rod; 9. Spiral tube; 10. Connecting tube; 11. Manifold ring; 12. Branch tube; 13. Movable rod; 14. Fluid cavity; 15. Piston; 16. Ring seat; 17. Perforation; 18. Scale line. Detailed Implementation

[0024] The following description is intended to disclose the invention and enable those skilled in the art to implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0025] Example

[0026] As attached Figure 1-7 The force measuring structure shown includes a rod 1, a mounting cylinder 3 and a hook 6 located at the front end of the rod 1;

[0027] The rod body 1 is a hollow tapered rod. A ring seat 16 is installed at the front end inside the rod body 1. Multiple evenly distributed through holes 17 are opened on the ring seat 16. A branch pipe 12 is installed on the inner end of the ring seat 16 through the through holes 17. A busbar ring 11 is installed on the inner end of several branch pipes 12. A spiral tube 9 is connected to the inner side of the busbar ring 11. A display tube 7 is installed at the end of the spiral tube 9. The display tube 7 extends through the rod body 1 to the outside.

[0028] A mounting cylinder 3 is provided at the front end of the rod body 1. A range ring 2 is sleeved on the outside of the rod body 1 near the mounting cylinder 3. The tube body of the display tube 7 extending to the outside is embedded in the outer surface of the range ring 2. The display tube 7 is exposed to the outside of the range ring 2 and the ends are flush. An elastic plate 4 is installed on the outside of the rod body 1 corresponding to the ring seat 16. Several movable rods 13 arranged in a circular array are installed on the inner side of the elastic plate 4. A piston 15 is connected to the inner end of the movable rod 13. Both the movable rod 13 and the piston 15 extend into the branch tube 12. The piston 15 is in close contact with the inner wall of the branch tube 12.

[0029] A rubber rod 5 is installed in the middle of the outer surface of the elastic sheet 4, and the end of the rubber rod 5 is connected to the hook body 6. The branch tube 12, the manifold ring 11, the spiral tube 9 and the display tube 7 together form a fluid cavity 14, which is filled with fluid. The microfluidic technology is applied to the surgical operation to achieve precise display of the pulling force, which is beneficial for measuring the strength of the traction muscle during the operation and makes it easier for the doctor to grasp the specific surgical operation force.

[0030] During operation, the fluid volume in the fluid chamber 14 is preset on the connecting part between the hook body 6 and the rod body 1, so that the fluid bubbles and the scale lines form a certain ratio. The pulling force when moving one unit scale is set to 1N. When in use, the hook body 6 on the strabismus hook comes into contact with the muscle being pulled during surgery. When pulled, the hook body 6 is under force and sequentially drives the rubber rod 5 and the elastic plate 4 to expand outward. As the elastic plate 4 expands outward, it drives the movable rod 13 and the piston 15 to move outward inside the branch tube 12. At this time, the fluid inside the branch tube 12, the return ring 11, the spiral tube 9, and the display tube 7 flows outward. As the display tube 7 moves, the fluid bubble corresponding to the measuring ring 2 moves to the rear end. At this time, the tension value can be quickly read according to the position of the scale line 18 corresponding to the bottom of the fluid bubble. During the pulling process, due to the setting of multiple branch tubes 12 at the front end of the fluid cavity 14, the hook body 6 can drive the fluid in the multiple branch tubes 12 to move through the slight deformation of the elastic plate 4. With the connection effect of the spiral tube 9 and the display tube 7, the movement of the fluid bubble in the fluid cavity 14 is realized, thereby obtaining a more accurate tension value and displaying it, which is convenient for doctors to grasp the force of muscle traction during surgical operations.

[0031] A connecting tube 10 is fixedly installed at the rear end of the spiral tube 9. The connecting tube 10 is arc-shaped, and its upper end is connected to the display tube 7.

[0032] The range ring 2 has a scale line 18 on one end of the outer side of the display tube 7. The end of the scale line 18 closest to the mounting cylinder 3 is the zero mark, which is convenient for reading.

[0033] An inner support rod 8 is installed at the rear end of the rod body 1. The outer wall of the inner support rod 8 abuts against the spiral tube 9. The through hole 17 is inclined. The outer end of the branch tube 12 is also bent. The movable rod 13 and the piston 15 extend into the interior of the branch tube 12 and are engaged with each other.

[0034] The outer edge of the inner side of the elastic plate 4 is fixedly connected to the ring seat 16. When the hook body 6 moves back and forth, it drives the movable rod 13 and piston 15 to move back and forth inside the branch pipe 12. When the movable rod 13 and piston 15 move inside the branch pipe 12, under the action of atmospheric pressure, the fluid bubbles in the fluid cavity 14 move inside the display tube 7, thereby changing the position of the scale line 18 on the range ring 2 corresponding to the display tube 7, and further achieving the purpose of displaying the tensile force value in real time.

[0035] A fluorescent lamp is installed on the rear side of the outer ring surface of the measuring ring 2 away from the display tube 7. The measuring ring 2 is transparent, and the fluorescence can illuminate the display tube 7 to display the corresponding scale line 18 reading. When reading, hold the mounting cylinder 3 on the front side of the rod body 1 and read the value on the measuring ring 2 in real time through the gap between the thumb and forefinger. Since the fluorescent lamp can illuminate the measuring ring 2, the value can be read quickly, which is convenient for use.

[0036] Working principle of the invention:

[0037] Refer to the instruction manual appendix Figure 1-7 As shown, when this force-measuring structure is applied to the strabismus hook, it is installed on the connection between the hook body 6 and the rod body 1, and the fluid volume in the fluid cavity 14 is preset so that the fluid bubble and the scale line form a certain ratio. The pulling force when moving one unit scale is set to 1N. In use, the hook body 6 on the strabismus hook comes into contact with the muscle being pulled during surgery. When pulled, the hook body 6 is subjected to force and sequentially drives the rubber rod 5 and the elastic plate 4 to expand outward. As the elastic plate 4 expands outward, it drives the movable rod 13 and the piston 15 to move outward inside the branch tube 12. At this time, the fluid inside the branch tube 12, the return ring 11, the spiral tube 9, and the display tube 7 is... As the body moves outward, the fluid bubble in the portion of the measuring ring 2 corresponding to the display tube 7 moves to the rear end. At this time, the tension value can be quickly read according to the position of the scale line 18 corresponding to the bottom of the fluid bubble. During the pulling process, due to the setting of multiple branch tubes 12 at the front end of the fluid cavity 14, the hook body 6 can drive the movement of the fluid in the multiple branch tubes 12 through the slight deformation of the elastic sheet 4. With the connection effect of the spiral tube 9 combined with the display tube 7, the movement of the fluid bubble in the fluid cavity 14 is realized, thereby obtaining a more accurate tension value and displaying it, which is convenient for doctors to control the force of muscle traction during surgical operations and facilitates the operation.

[0038] In summary, this force-measuring structure can be effectively applied to strabismus hooks and obtains relatively accurate traction values ​​during actual force measurement, which is beneficial for surgical procedures.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention. The scope of protection claimed by the appended claims and their equivalents is defined.

Claims

1. A load cell structure for use on a cant hook, characterized by: It includes a rod body (1), an installation cylinder (3) located at the front end of the rod body (1), and a hook body (6); The rod (1) is a hollow conical rod. A ring seat (16) is installed at the front end of the rod (1). A plurality of evenly distributed perforations (17) are opened on the ring seat (16). A branch pipe (12) is installed on the inner end of the ring seat (16) through the perforations (17). A busbar (11) is installed on the inner end of several branch pipes (12). A spiral tube (9) is connected to the inner side of the busbar (11). A display tube (7) is installed at the end of the spiral tube (9). The display tube (7) extends through the rod (1) to the outside. The front end of the rod (1) is provided with an installation cylinder (3), and a range ring (2) is sleeved on the outside of the rod (1) near the installation cylinder (3). The tube part of the display tube (7) extending to the outside is embedded in the outer surface of the range ring (2). The display tube (7) is exposed to the outside of the range ring (2) and the ends are flush. An elastic plate (4) is installed on the outside of the rod (1) corresponding to the ring seat (16). Several movable rods (13) arranged in a circular array are installed on the inner side of the elastic plate (4). A piston (15) is connected to the inner end of the movable rod (13). Both the movable rod (13) and the piston (15) extend into the branch pipe (12). The piston (15) is tightly fitted with the inner wall of the branch pipe (12). A rubber rod (5) is installed in the middle of the outer surface of the elastic sheet (4), and the end of the rubber rod (5) is connected to the hook body (6); the interior of the branch pipe (12), the manifold ring (11), the spiral pipe (9) and the display pipe (7) together form a fluid cavity (14), which is filled with fluid.

2. A load cell for use with a cant hook as defined in claim 1, wherein, A connecting pipe (10) is fixedly installed at the rear end of the spiral tube (9). The connecting pipe (10) is arc-shaped, and its upper end is connected to the display tube (7).

3. A load cell for use with a cant hook as defined in claim 1, wherein, The range ring (2) has a scale line (18) on one end corresponding to the outer side of the display tube (7), and the end of the scale line (18) near the mounting cylinder (3) is the zero scale.

4. A load cell for use with a cant hook as defined in claim 1, wherein, An inner support rod (8) is installed at the rear end of the rod body (1), and the outer wall of the inner support rod (8) abuts against the spiral tube (9).

5. A load cell for use with a cant hook as defined in claim 1, wherein, The perforation (17) is inclined, the outer end of the branch pipe (12) is also bent, and the movable rod (13) and piston (15) extend into the interior of the branch pipe (12) and are engaged with each other.

6. A load cell for use with a cant hook as defined in claim 1, wherein, The outer edge of the inner side of the elastic sheet (4) is fixedly connected to the ring seat (16). When the hook (6) moves back and forth, it drives the movable rod (13) and the piston (15) to move back and forth inside the branch pipe (12).

7. A load cell for use with a cant hook as defined in claim 1, wherein, A fluorescent lamp is provided on the rear side of the outer ring surface of the range ring (2) away from the display tube (7). The range ring (2) is transparent, and the fluorescence can be irradiated onto the display tube (7) to display the reading of the corresponding scale line (18).

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