A circular suture device adjustment mechanism

Abstract

The present invention discloses an adjusting mechanism of a circumcision suture instrument, comprising a circumcision suture instrument body, a bell-shaped seat arranged below the circumcision suture instrument body and a screw formed at the upper end of the bell-shaped seat, and also comprising an adjusting component, wherein the adjusting component comprises an adjusting knob, a gear, a top tooth and a spring, wherein the adjusting knob is rotatably mounted on the upper end of the circumcision suture instrument body, wherein a receiving cavity and a sliding hole communicating with the receiving cavity are provided in the adjusting knob, and the adjusting mechanism of the circumcision suture instrument can avoid the situation that the foreskin is not compressed or is over-compressed when the bell-shaped seat is tightened, thereby effectively avoiding the situation that bleeding or crushing of the foreskin tissue occurs, and reducing the risk of surgery.

Description

Technical Field

[0001] The invention relates to the technical field of circular cutting suture devices, and in particular to an adjusting mechanism of a circular cutting suture device. Background Art

[0002] At present, doctors use circumcision suture devices or circumcision suture devices on the market to perform circumcision surgery. When tightening the adjustment knob, some doctors rely on the doctor's feel to judge whether it is tightened, some touch or observe the distance that the screw that matches the adjustment knob extends out of the top surface of the adjustment knob to judge whether it is tightened, and some design a foreskin thickness indication window based on the distance that the bell-shaped seat moves toward the circumcision suture device body, that is, the distance moved during the tightening process. When the bell-shaped seat moves back a certain distance, it drives the pointer to move to a designed and calculated mark line as an indication to judge whether it is tightened. In essence, it is also based on how much distance the bell-shaped seat moves back to judge whether it is tightened in place, because this moving distance is fixed, and its fundamental principle is still the same as the previous case, except that the tactile judgment is transferred to the visual judgment. Because of individual differences, the foreskin thickness of adults and children, adults and adults, and children and children is not the same. Some are thicker and some are thinner. Obviously, no matter which of the above methods are used to judge whether the adjustment knob has been tightened into place, it will not be ideal. It may be pressed too tight or not tight enough, which will cause bleeding or damage to the foreskin tissue, increase the risk of surgery, and reduce the satisfaction with the instrument. Summary of the invention

[0003] In order to overcome the shortcomings of the prior art, the purpose of the present invention is to provide a circumcision suture device adjustment mechanism, which can avoid the situation where the foreskin is not compressed or over-compressed when the clock-shaped seat is tightened, effectively avoid bleeding or crushing of the foreskin tissue, and reduce the risk of surgery.

[0004] The purpose of the present invention is achieved by the following technical solutions:

[0005] A circular cutting suture device adjustment mechanism, comprising a circular cutting suture device body, a bell-shaped seat arranged below the circular cutting suture device body and a screw formed at the upper end of the bell-shaped seat, and also comprising an adjustment component, the adjustment component comprising an adjustment knob, a gear, a top tooth and a spring, the adjustment knob being rotatably mounted on the upper end of the circular cutting suture device body, the adjustment knob being provided with a receiving cavity and a slide hole communicating with the receiving cavity, the gear being rotatably arranged in the receiving cavity, the top tooth and the spring being arranged in the slide hole, the spring being suitable for giving the top tooth an elastic force to move toward the gear and embed into the gear tooth groove, the upper end of the screw passing through the circular cutting suture device body and the adjustment knob and being threadedly connected to the gear, the screw being suitable for In order to drive the bell-shaped seat to be pressed against or away from the annular suture device body under the drive of the gear, the gear has a first inclined surface on one side of the gear teeth, and a second inclined surface on one side of the top teeth. When the bell-shaped seat is not pressed against the annular suture device body, the second inclined surface is suitable for rotating positively with the adjusting knob and abutting against the first inclined surface to drive the gear to rotate positively, and the bell-shaped seat can be driven by the screw rod to approach the annular suture device body until the bell-shaped seat and the annular suture device body are pressed against each other; when the bell-shaped seat and the annular suture device body are pressed against each other, the gear and the screw rod cooperate to self-lock, and the second inclined surface is suitable for rotating positively with the adjusting knob and sliding along the first inclined surface to pass over the first inclined surface.

[0006] Furthermore, the other side of the gear teeth of the gear has a first transmission surface, and the other side of the top tooth has a second transmission surface, and the second transmission surface can abut against the first transmission surface when the adjusting knob rotates in the reverse direction to drive the gear to rotate in the reverse direction, so as to drive the screw to drive the bell-shaped seat away from the circular cutting suture device body.

[0007] Furthermore, a first accommodating groove is formed on the bottom wall of the accommodating cavity, a second accommodating groove is formed on the top wall of the accommodating groove at a position corresponding to the first accommodating groove, and a first protrusion adapted to the first accommodating groove and a second protrusion adapted to the second accommodating groove are respectively formed on the upper and lower end surfaces of the gear.

[0008] Furthermore, a fixing block threadedly connected to the sliding hole is also provided in the sliding hole, one end of the spring is fixedly connected to the fixing block, and the other end of the spring is fixedly connected to the top tooth.

[0009] Furthermore, a sliding block is formed on the surface of the screw rod, and a sliding groove which is slidably matched with the sliding block is arranged in the body of the circular cutting suture device.

[0010] Furthermore, the adjustment assembly also includes a fixing ring arranged in the sliding hole, the top tooth is formed on the lower end surface of the fixing ring, the sliding hole is arranged above the gear, the gear teeth of the gear are arranged on the upper end surface of the gear to be suitable for cooperating with the top tooth formed on the lower end surface of the fixing ring, one end of the spring is fixedly connected to the sliding hole wall, and the other end is fixedly connected to the fixing ring.

[0011] Furthermore, a rotating rod extends downward from the axis position of the gear, and a mounting hole is opened on the bottom wall of the accommodating cavity. The rotating rod can be rotatably installed in the mounting hole. A fixing rod extends downward from the top wall of the accommodating cavity corresponding to the axis position of the gear, and the lower end of the fixing rod abuts against the upper end surface of the gear, and the fixing rod and the side wall of the accommodating cavity form the sliding hole.

[0012] Furthermore, the spring and the fixing ring are sleeved on the fixing rod, and a boss for supporting the fixing ring is formed on the side wall of the fixing rod and the gear abutting end.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] The present application utilizes a spring to push the top tooth, so that when the adjusting knob is rotated in the forward direction, the second bevel provides pressure to press against the first bevel, so that the top tooth drives the gear to rotate, thereby driving the screw connected to the gear thread to move backward, and synchronously drives the bell-shaped seat to move backward, that is, the bell-shaped seat moves toward the direction of the circumcision suture device body, until the foreskin covered on the bell-shaped seat presses against the front end of the circumcision suture device body. At this time, the torque applied by the screw to the gear is greater than the force applied by the second bevel to the first bevel. If the adjusting knob is continuously rotated, the second bevel will slide along the surface of the first bevel, that is, the top tooth disengages from the tooth groove of the gear and cannot drive the gear to rotate, so as to avoid the gear driving the bell-shaped seat to move toward the direction of the circumcision suture device body through the screw, causing the circumcision suture device body to press against the bell-shaped seat excessively. The foreskin is damaged, thereby crushing the foreskin tissue, increasing the risk of surgery, and reducing the satisfaction of the instrument. At the same time, it is effectively avoided that the circumcision suture device body is not tightly against the foreskin covered on the bell-shaped seat. In addition, it can intelligently assist the doctor in judging how to tighten the adjusting knob in place from another perspective. When the second bevel slides along the surface of the first bevel, that is, the top tooth is separated from the tooth groove of the gear and cannot drive the gear to rotate, that is, the top tooth slips and fails, it is tightened in place, instead of relying on hand feeling, touch judgment, observation judgment, etc., effectively avoiding the situation that the adjusting knob is not tightened in place due to lack of experience, misjudgment and other factors, that is, the foreskin is not effectively pressed between the bell-shaped seat and the suture device body, thereby avoiding bleeding due to lack of compression. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1It is a structural schematic diagram of a first embodiment of an adjusting mechanism of a circular cutting suture device of the present invention;

[0016] Figure 2 for Figure 1 Sectional view of section AA;

[0017] Figure 3 It is a structural schematic diagram of a first embodiment of the circular cutting suture device adjustment mechanism of the present invention when in use;

[0018] Figure 4 A cross-sectional view of the first embodiment of the circular cutting suture device adjustment mechanism of the present invention when in use;

[0019] Figure 5 It is a structural schematic diagram of the top teeth in the first embodiment of the circular cutting suture device adjustment mechanism of the present invention;

[0020] Figure 6 It is a structural schematic diagram of a second embodiment of an adjusting mechanism of a circular cutting suture device of the present invention;

[0021] Figure 7 An exploded view of a second embodiment of an adjusting mechanism of a circular cutting stapler of the present invention;

[0022] Figure 8 It is a structural schematic diagram of a second embodiment of the circular cutting suture device adjustment mechanism of the present invention when in use;

[0023] Fig. 9 The figure is a cross-sectional view of the second embodiment of the circular cutting suture device adjustment mechanism of the present invention when in use.

[0024] In the figure: 10, the body of the circular cutting suture device; 20, the bell-shaped seat; 201, the screw; 31, the adjusting knob; 311, the accommodating chamber; 3111, the first accommodating groove; 3112, the second accommodating groove; 3113, the mounting hole; 312, the sliding hole; 313, the rotating rod; 32, the gear; 321, the gear teeth of the gear; 3211, the first inclined surface; 3212, the first transmission surface; 322, the first protrusion; 323, the second protrusion; 33, the top tooth; 331, the second inclined surface; 332, the second transmission surface; 34, the fixing block; 35, the spring; 36, the fixing ring. DETAILED DESCRIPTION

[0025] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0026] like Figure 1-9The present invention discloses a circular cutting suture device adjustment mechanism, comprising a circular cutting suture device body 10, a bell-shaped seat 20 disposed below the circular cutting suture device body 10, and a screw 201 formed at the upper end of the bell-shaped seat 20, and also comprising an adjustment component, the adjustment component comprising an adjustment knob 31, a gear 32, a top tooth 33 and a spring 35, the adjustment knob 31 is rotatably connected to the upper end of the circular cutting suture device body 10, a receiving cavity 311 and a slide hole 312 communicating with the receiving cavity 311 are provided in the adjustment knob 31, the gear 32 is rotatably disposed in the receiving cavity 311, the top tooth 33 and the spring 35 are disposed in the slide hole 312, and the spring 35 is arranged in the slide hole 312. The spring 35 is suitable for providing elastic force for the top tooth 33 to be embedded in the tooth groove of the gear 32. The upper end of the screw 201 passes through the annular suture device body 10 and the adjusting knob 31 and is threadedly connected with the gear 32. The gear tooth 321 has a first inclined surface 3211 on one side and a first transmission surface 3212 on the other side. The top tooth 33 has a second inclined surface 331 on one side and a second transmission surface 332 on the other side. When the adjusting knob 31 rotates forward, the second inclined surface 331 can abut against the first inclined surface 3211. At this time, the force applied by the second inclined surface 331 to the first inclined surface 3211 is greater than the torque applied by the screw 201 to the gear 32 , the gear 32 will rotate together with the adjusting knob 31, so that the screw 201 threadedly connected to the gear 32 moves backward and synchronously drives the bell-shaped seat 20 to move backward, that is, the bell-shaped seat 20 moves toward the direction of the circumcision suture device body 10 until the foreskin covered on the bell-shaped seat 20 is tightly pressed against the front end of the circumcision suture device body 10. During this process, the torsion force on the gear 32 will continue to increase. When the front end of the circumcision suture device body 10 is tightly pressed against the foreskin covered on the bell-shaped seat 20, the torsion force applied by the screw 201 to the gear 32 is greater than the force applied by the second inclined surface 331 to the first inclined surface 3211, and the screw 201 cooperates with the gear 32 for self-locking. At this time, the second bevel 331 cannot push the first bevel 3211, i.e., the gear 32 to rotate. If the adjusting knob 31 is continuously rotated, the second bevel 331 will slide along the surface of the first bevel 3211 and pass over the first bevel 3211. The top tooth 33 will disengage from the tooth groove of the gear 32 and cannot drive the gear 32 to rotate. If the adjusting knob 31 is continuously rotated, the top tooth 33 will be stuck in the tooth groove of the gear 32 again and then pushed back into the sliding hole 312 to cause idling. The doctor can judge that the adjusting knob 31 is tightened in place at this time, and the patient's foreskin is reasonably compressed, and the next operation can be performed.When the operation is completed, when it is necessary to loosen the foreskin and remove the cut foreskin on the bell-shaped seat 20, the adjustment knob 31 needs to be rotated in the reverse direction, and the second transmission surface 332 can be clamped with the first transmission surface 3212. At this time, the top teeth 33 are only subjected to the force perpendicular to the second transmission surface 332, and are not subjected to the force parallel to the second transmission surface 332, that is, the top teeth 33 will not retract due to the force and will always clamp the gear 32. Reverse rotation of the adjustment knob 31 can drive the gear 32 to rotate, thereby driving the screw 201 threadedly connected to the gear 32 to drive the bell-shaped seat 20 to move downward, that is, move away from the circumcision suture body 10, so as to loosen the foreskin pressed against the bell-shaped seat 20 by the circumcision suture body 10, so as to facilitate the doctor to perform subsequent treatment. In this application, the clockwise rotation direction is used as the positive rotation direction, and the counterclockwise optional direction is used as the reverse rotation direction. The circumcision stapler body 10 in the present application may be an existing circumcision stapler body 10 such as the CN204951086U disposable pistol-type circumcision stapler, the CN104224286A disposable circumcision stapler, etc., which will not be described in detail in the present application.

[0027] The present application utilizes a spring 35 to push the top tooth 33, so that when the adjusting knob 31 rotates forward, the second bevel 331 is provided with pressure against the first bevel 3211, so that the top tooth 33 drives the gear 32 to rotate, thereby driving the screw 201 threadedly connected to the gear 32 to move backward, and synchronously drives the bell-shaped seat 20 to move backward, that is, the bell-shaped seat 20 moves toward the direction of the circumcision suture device body 10, until the foreskin covered on the bell-shaped seat 20 is pressed against the front end of the circumcision suture device body 10. At this time, the torque applied by the screw 201 to the gear 32 is greater than the force applied by the second bevel 331 to the first bevel 3211. If the adjusting knob 31 is continuously rotated, the second bevel 331 will slide along the surface of the first bevel 3211, that is, the top tooth 33 is separated from the tooth groove of the gear 32 and cannot drive the gear 32 to rotate, so as to prevent the gear 32 from driving the bell-shaped seat 20 toward the circumcision suture device body through the screw 201. 10 direction movement, causing the circumcision suture device body 10 to over-tighten the foreskin covered on the bell-shaped seat 20, thereby causing bleeding or crushing the foreskin tissue, increasing the risk of surgery and reducing the satisfaction of the instrument. At the same time, it is effectively avoided that the circumcision suture device body 10 does not tightly press the foreskin covered on the bell-shaped seat 20. In addition, it can intelligently assist the doctor in judging how to tighten the adjustment knob in place from another aspect. When the second bevel slides along the surface of the first bevel, that is, the top tooth disengages from the tooth groove of the gear and cannot drive the gear to rotate, that is, the top tooth slips and fails, it is tightened in place, instead of relying on hand feeling, touch judgment, observation judgment, effectively avoiding the adjustment knob not being tightened in place due to lack of experience, misjudgment and other factors, that is, the foreskin is not effectively compressed between the bell-shaped seat and the suture device body, thereby avoiding bleeding due to lack of compression.

[0028] Specifically, a slider is formed on the surface of the screw 201, and a slide groove that slidably cooperates with the slider is provided in the annular cutter body 10 to limit the radial rotation of the screw 201, thereby preventing the screw 201 from rotating synchronously when the gear 32 drives the screw 201 to rotate, and failing to drive the bell-shaped seat 20 to move toward or away from the annular cutter body 10.

[0029] Embodiment 1

[0030] Specifically, Figure 1-5 As shown, a first accommodating groove 3111 is provided on the bottom wall of the accommodating cavity 311, and a second accommodating groove 3112 is provided on the top wall of the accommodating groove corresponding to the position of the first accommodating groove 3111, and a first protrusion 322 adapted to the first accommodating groove 3111 and a second protrusion 323 adapted to the second accommodating groove 3112 are respectively formed on the upper and lower end surfaces of the gear 32 to avoid displacement of the gear 32 during rotation.

[0031] Specifically, a fixing block 34 threadedly connected to the sliding hole 312 is also provided in the sliding hole 312, one end of the spring 35 is fixedly connected to the fixing block 34, and the other end is fixedly connected to the top tooth 33. A groove adapted to a hexagonal wrench is provided at one end of the fixing block 34 away from the spring 35, so that the user can adjust the position of the fixing block 34 in the sliding hole 312 according to needs, so as to adjust the expansion and contraction amount of the spring 35, and further adjust the elastic force applied by the spring 35 to the top tooth 33.

[0032] Embodiment 2

[0033] In addition, if Figure 6-9 As shown, the adjustment assembly also includes a fixing ring 36 disposed in the sliding hole 312, a top tooth 33 is formed on the lower end surface of the fixing ring 36, the sliding hole 312 is disposed above the gear 32, and the gear teeth 321 of the gear are disposed on the upper end surface of the gear 32 to be suitable for matching with the top tooth 33 formed on the lower end surface of the fixing ring 36, and one end of the spring 35 is fixedly connected to the wall of the sliding hole 312, and the other end is fixedly connected to the fixing ring 36. The spring 35 provides elastic force to move the fixing ring 36 toward the gear 32, so that the top tooth 33 formed on the lower end surface of the fixing ring 36 is embedded in the tooth groove of the gear 32 for matching.

[0034] Specifically, a rotating rod 313 extends downward from the axial position of the gear 32, and a mounting hole 3113 is opened on the bottom wall of the accommodating chamber 311. The rotating rod 313 can be rotatably installed in the mounting hole 3113. A fixing rod extends downward from the top wall of the accommodating chamber 311 corresponding to the axial position of the gear 32, and the lower end of the fixing rod abuts against the upper end surface of the gear 32. The fixing rod and the side wall of the accommodating chamber 311 form a sliding hole 312. The rotating rod 313 cooperates with the mounting hole 3113 to limit the longitudinal and lateral displacement of the gear 32, thereby avoiding deviation during the rotation of the gear 32, which causes the top tooth 33 to be unable to fit into the tooth groove of the gear tooth.

[0035] Specifically, the spring 35 and the fixing ring 36 are sleeved on the fixing rod, and a boss for supporting the fixing ring 36 is formed on the side wall of the fixing rod abutting the gear 32 to provide guidance for the spring 35 to push the fixing ring 36 and avoid deviation of the fixing ring 36 during movement.

[0036] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A circular cutting suture adjusting mechanism, comprising a circular cutting suture body, a bell-shaped seat arranged below the circular cutting suture body, and a screw formed at the upper end of the bell-shaped seat, characterized in that: The invention also includes an adjustment component, which includes an adjustment knob, a gear, a top tooth and a spring. The adjustment knob is rotatably installed on the upper end of the annular suture device body. A receiving cavity and a slide hole connected to the receiving cavity are provided in the adjustment knob. The gear is rotatably arranged in the receiving cavity. The top tooth and the spring are arranged in the slide hole. The spring is suitable for giving the top tooth an elastic force to move toward the gear and embed into the gear tooth groove. The upper end of the screw passes through the annular suture device body and the adjustment knob and is threadedly connected to the gear. The screw is suitable for driving the bell-shaped seat to be close to or away from the annular suture under the drive of the gear. The gear has a first bevel on one side of the gear teeth, and a second bevel on one side of the top teeth. When the bell-shaped seat is not pressed against the annular suture device body, the second bevel is suitable for rotating in the forward direction with the adjusting knob and abutting against the first bevel to drive the gear to rotate in the forward direction, and the bell-shaped seat can be driven by the screw to approach the annular suture device body until the bell-shaped seat and the annular suture device body are pressed against each other; when the bell-shaped seat and the annular suture device body are pressed against each other, the gear and the screw cooperate to self-lock, and the second bevel is suitable for rotating in the forward direction with the adjusting knob and sliding along the first bevel to pass over the first bevel. The gear has a first transmission surface on the other side of the gear teeth, and the top teeth have a second transmission surface on the other side, and the second transmission surface can abut against the first transmission surface when the adjusting knob rotates in the reverse direction, so as to drive the gear to rotate in the reverse direction, so as to drive the screw to drive the bell-shaped seat away from the circular cutting suture device body; A first receiving groove is formed on the bottom wall of the receiving cavity, a second receiving groove is formed on the top wall of the receiving groove at a position corresponding to the first receiving groove, and a first protrusion adapted to the first receiving groove and a second protrusion adapted to the second receiving groove are formed on the upper and lower end surfaces of the gear respectively.

2. The circular cutting stapler adjustment mechanism according to claim 1, characterized in that: A fixing block threadedly connected to the sliding hole is also provided in the sliding hole. One end of the spring is fixedly connected to the fixing block, and the other end is fixedly connected to the top tooth.

3. The circular cutting stapler adjustment mechanism according to claim 1, characterized in that: A sliding block is formed on the surface of the screw rod, and a sliding groove which is slidably matched with the sliding block is arranged in the body of the circular cutting suturing device.

4. The circular cutting stapler adjustment mechanism according to claim 1, characterized in that: The adjustment assembly also includes a fixing ring arranged in the sliding hole, the top teeth are formed on the lower end surface of the fixing ring, the sliding hole is arranged above the gear, the gear teeth of the gear are arranged on the upper end surface of the gear to be suitable for cooperating with the top teeth formed on the lower end surface of the fixing ring, one end of the spring is fixedly connected to the sliding hole wall, and the other end is fixedly connected to the fixing ring.

5. The circular cutting stapler adjustment mechanism according to claim 4, characterized in that: A rotating rod extends downward from the axis position of the gear, and a mounting hole is opened on the bottom wall of the accommodating cavity. The rotating rod can be rotatably installed in the mounting hole. A fixing rod extends downward from the top wall of the accommodating cavity corresponding to the axis position of the gear, and the lower end of the fixing rod abuts against the upper end surface of the gear, and the fixing rod and the side wall of the accommodating cavity form the sliding hole.

6. The circular cutting stapler adjustment mechanism according to claim 5, characterized in that: The spring and the fixing ring are sleeved on the fixing rod, and a boss for supporting the fixing ring is formed on the side wall of the fixing rod and the gear abutting end.

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