Trocar

Abstract

The present invention relates to a trocar, which includes: a valve seat, a valve, an assembly component, a rotating component, a tube, and a puncture component. The valve seat includes an assembly hole for the assembly component, and the valve seat has a cross-shaped channel connected to the assembly component. The valve is installed in the valve seat. The assembly component is positioned in the assembly hole and has a sliding rail. The rotating component is mounted on the assembly component and has a protrusion and a first hole. The edge of the first hole forms a positioning hole. The protrusion moves along the sliding rail, and a gap is provided between the rotating component and the assembly component. The tube is inserted into the valve seat and has a second hole. The puncture component passes through the first hole, the assembly hole, the cross-shaped channel, and the second hole, and the positioning block on the puncture component passes through the positioning hole. By rotating the rotating component, the protrusion moves along the sliding rail, thereby changing the position of the positioning block in the gap, thus completing the positioning of the puncture component.

Description

Trocar The present invention provides a trocar, specifically a trocar used in the medical field for performing minimally invasive surgery. Minimally invasive surgery refers to making a small incision at the surgical site, and then using other instruments to perform subsequent operations. Compared with previous traditional surgeries, in addition to smaller incisions, this surgical method can reduce patients' postoperative pain, and recovery is faster and less expensive. With the advancement of surgical equipment, more and more high-tech equipment has gradually emerged in the field of minimally invasive surgery, which has greatly reduced safety concerns about minimally invasive surgery. In minimally invasive surgery, the most important thing is to first make a wound in the abdominal cavity before proceeding with subsequent surgery. At this time, the puncture device plays a vital role. Generally speaking, the puncture device includes a puncture cannula and a puncture core. When the doctor finds a suitable puncture point and performs anesthesia, he will insert the puncture needle into the puncture cannula, and then insert the puncture needle and the puncture cannula into the puncture point to complete the penetration of the abdominal cavity. After a simple drainage of blood and water, the doctor will pull out the puncture core and then insert different surgical instruments into the puncture cannula for subsequent surgical procedures, such as common spinal endoscopic surgery. In the past, trocars were mainly made of metal and could be reused after being sterilized after use. However, in order to prevent the puncture effect of trocars from being reduced after repeated use and to avoid the risk of cross infection, disposable trocars are now commonly used in medical devices. They are replaced after the trocar has completed its operation to avoid the above risks. However, both traditional trocars and today's disposable trocars have a significant drawback: after the puncture needle or other surgical instrument is inserted into the abdominal cavity, it is not immediately removed due to the need for equipment conversion or other preparatory work. In order to properly position the surgical instrument and puncture needle within the puncture cannula and prevent improper operation that may cause the instrument to move and injure other tissues, the puncture needle or other surgical instrument is previously positioned within the puncture cannula by means of a screw lock. Whether it is the puncture process or the operation of changing other instruments, the screw lock or unscrew operation is required, which makes the operation more complicated and inconvenient for the surgeon. In addition, the screw lock or unscrew operation alone takes a considerable amount of time, which undoubtedly increases the risk in the critical surgery process. In view of this, the inventor has invested a lot of time in studying relevant knowledge, conducting research and development of related products, and after many experiments and tests, finally launched a puncture device to improve the above shortcomings and meet the needs of the public. The main purpose of the present invention is to enable the user to easily and quickly position the puncture piece or release the position of the puncture piece to replace different equipment through simple operations, which avoids the problem that the conventional puncture piece is assembled with the puncture cannula through a screw lock, so that the screw lock or release action is required during the puncture process or when replacing equipment, resulting in a waste of time. However, in order to achieve the above-mentioned purpose and improve the shortcomings of the conventional method, the present invention provides a puncture device, which includes: a valve seat, the valve seat includes an assembly part, the assembly part is installed at one end of the valve seat, the assembly part is provided with an assembly hole; a cross channel is formed in the valve seat, the The assembly hole is connected to the cross channel; two valves, and two pipes corresponding to each valve, each pipe is inserted into the two ends corresponding to the valve seat, each pipe is respectively connected to the cross channel, the two valves are respectively pivoted to the two pipes, and each valve controls the conduction of each pipe; an assembly part, the assembly part is installed in the assembly hole, the other part of the assembly part protrudes from the assembly hole and is provided with at least one slide rail on the outer surface; a dial assembly, the dial assembly is set on one end of the assembly part with the at least one slide rail, the dial assembly is provided with a first through hole and at least one protrusion corresponding to the at least one slide rail, the first through hole passes through the dial assembly The assembly is connected with the assembly hole and the cross channel, and the edge of the first perforation is recessed with at least one positioning hole; the at least one protrusion slides on the at least one slide rail, and the dial assembly is rotated by an external force and drives the at least one protrusion to move on the at least one slide rail. In addition, a space is formed between the dial assembly and the end face of the assembly; a pipe fitting is inserted into the valve seat and is located below the assembly portion, and the pipe fitting is provided with a second perforation, which is connected with the cross channel, the assembly hole and the first perforation; and a piercing member, which moves through the first perforation, the assembly hole, the cross channel and the second perforation in sequence. The puncture piece includes a gripping portion and a puncture portion, one end of the puncture portion is connected to the gripping portion, and the other end of the puncture portion forms a puncture end, and the gripping portion is provided with at least one positioning block corresponding to the at least one positioning hole; wherein, when the puncture piece passes through the first through-hole, the assembly hole, the cross channel and the second through-hole in sequence with the puncture portion, the at least one positioning block of the gripping portion passes through the at least one positioning hole and falls into the assembly space, and by toggling the toggle assembly to make the at least one protrusion slide and displace on the at least one slide rail, so that the position of the at least one positioning block in the assembly space is changed, the positioning of the puncture piece can be quickly completed. According to the technology defined in the present invention as described above, the user can easily assemble the piercing member and the dial assembly by passing the positioning block through the positioning hole to position the positioning block in the assembly space, and by toggling the dial assembly, the protrusion is displaced on the slide rail, thereby changing the position of the positioning block in the assembly space to complete the positioning of the piercing member. When use is completed or the equipment needs to be replaced, the dial assembly is toggled again to change the position of the positioning block so that it corresponds to the positioning hole and the piercing member is pulled out, and the assembled state of the piercing member can be easily released, avoiding the conventional need to go through complicated screw locking or unscrewing steps to complete or release the positioning of the piercing member. This shows that the present invention is indeed practical and progressive and worthy of promotion in the industry. To clearly illustrate the above-mentioned objectives and effects that can be achieved by the present invention, the following embodiments of the present invention are illustrated in detail, including their features and effects. Please refer to Figures 1 to 10, which show a trocar of the present invention, comprising: a valve seat 1, the valve seat 1 including an assembly portion 11, the assembly portion 11 being mounted on one end of the valve seat 1, the assembly portion 11 being provided with an assembly hole 111; a cross channel 12 formed in the valve seat 1, the assembly hole 111 being connected to the cross channel 12; two valves 2, and two pipes 21 corresponding to each valve 2, each pipe 21 being inserted into the corresponding ends of the valve seat 1, each pipe 21 being connected to the cross channel 12, and the two valves 2 being connected to the valve seat 1. The two pipes 21 are pivotally connected, and each valve 2 controls the conduction of each pipe 21 respectively; an assembly 3, part of the assembly 3 is installed in the assembly hole 111, and the other part of the assembly 3 protrudes from the assembly hole 111 and is provided with at least one slide rail 31 on the outer surface; a dial assembly 4, the dial assembly 4 is set on the assembly 3 with one end of the at least one slide rail 31, the dial assembly 4 is provided with a first through hole 41 and at least one protrusion 42 corresponding to the at least one slide rail 31, the first through hole 41 passes through the dial assembly 4 and is connected to the assembly hole 111 and the cross channel 12, the edge of the first through hole 41 is recessed with at least one positioning hole 411; the at least one protrusion 42 is movable and slides in the At least one slide rail 31, the dial assembly 4 is driven by external force to rotate and drive the at least one protrusion 42 to move on the at least one slide rail 31, and a set of spaces 43 are formed between the end faces of the dial assembly 4 and the assembly 3; a pipe 5, the pipe 5 is inserted into the valve seat 1 and is located below the assembly portion 11, the pipe 5 is provided with a second through-hole 51, the second through-hole 51 is connected to the cross channel 12, the assembly hole 111 and the first through-hole 41; and a piercing member 6, the piercing member 6 moves through the first through-hole 41, the assembly hole 111, the cross channel 12 and the second through-hole 51 in sequence, the piercing member 6 includes a gripping portion 61 and a piercing portion 62, one end of the piercing portion 62 is connected to the The gripping portion 61 is connected to the piercing portion 62, and the other end of the piercing portion 62 forms a piercing end 621. The gripping portion 61 is provided with at least one positioning block 611 corresponding to the at least one positioning hole 411. When the piercing member 6 passes through the first through-hole 41, the assembly hole 111, the cross channel 12, and the second through-hole 51 in sequence with the piercing portion 62, the at least one positioning block 611 of the gripping portion 61 passes through the at least one positioning hole 411 and falls into the assembly space 43. By turning the dial assembly 4 to slide the at least one protrusion 42 on the at least one slide rail 31, the position of the at least one positioning block 611 in the assembly space 43 is changed, thereby quickly completing the positioning of the piercing member 6. The figures used herein are merely for the purpose of assisting in illustrating the present invention and are not intended to limit the present invention. The present invention provides a positioning hole 411 on the dial assembly 4, so that when the piercing member 6 passes through the first through-hole 41, the assembly hole 111, the cross channel 12 and the second through-hole 51, the positioning block 611 on the piercing member 6 achieves a foolproof effect, thereby preventing the piercing member 6 from being unable to complete the assembly smoothly. Moreover, when the positioning block 611 passes through the positioning hole 411 and is located in the assembly space 43, the user rotates the dial assembly 4, and at the same time drives the protrusion 42 to move on the slide rail 31, thereby causing the positioning block 611 to be assembled. The relative position of the space 43 changes, allowing the positioning block 611 to be fixed in the assembly space 43, thereby completing the positioning of the piercing member 6. When the user needs to pull out the piercing member 6, he only needs to reversely turn the dial assembly 4 and drive the protrusion 42 to move on the slide rail 31, thereby changing the position of the positioning block 611 in the assembly space 43 and corresponding to the positioning hole 411. Then, the piercing member 6 can be easily and quickly released from the assembly state of the dial assembly 4, as shown in Figures 2 to 8. Based on the above description, other technical and structural features of the present invention will be further described. The slide rail 31 of the present invention has one end close to the assembly portion 11, and the other end of the slide rail 31 extends obliquely around the outer surface of the assembly 3. The user can move the toggle assembly 4, thereby driving the protrusion 42 to move along the track of the slide rail 31 on the slide rail 31, and cooperate with the assembly space 43 to change the relative position of the positioning block 611, thereby fixing or releasing the assembly of the piercing member 6 and the toggle assembly 4, as shown in the second, fourth and eighth figures. In addition, in order to ensure the positioning of the puncture member 6, a first ring protrusion 462 is further provided on the end surface of the dial member 46 away from the fixed ring 45, and a second ring protrusion 463 and a limit block 44 are further provided on the inner wall surface of the dial member 46. The limit block 44 is connected to the second ring protrusion 463 and extends from the second ring protrusion 463 toward the first ring protrusion 462. The assembly space 43 is located between the first ring protrusion 462 and the second ring protrusion 463. When the user assembles the puncture member 6 with the dial member 46, the positioning block 611 passes through the positioning hole 411 is located in the assembly space 43. The user changes the position of the positioning block 611 in the assembly space 43 by turning the dial member 46. The bottom of the positioning block 611 will abut against the second annular protrusion 463 and be limited by the first annular protrusion 462, so that the piercing member 6 cannot be pulled out of the dial member 46. The limit block 44 will cooperate with the slide rail 31 to further limit the displacement of the positioning block 611 in the assembly space 43, thereby ensuring that the piercing member 6 and the dial member 46 can be assembled smoothly and preventing it from falling off after assembly, as shown in the third figure. In addition, in order to prevent the user from excessively moving the dial assembly 4 when fixing the piercing member 6 so that the positioning block 611 corresponds to the positioning hole 411 again, so that the piercing member 6 cannot be successfully fixed, the dial assembly 4 is further provided with a protruding limit block 44. The limit block 44 is arranged in the assembly space 43 and cooperates with the slide rail 31 to limit the displacement of the positioning block 611 in the assembly space 43, so that the piercing member 6 and the dial assembly 4 can be smoothly assembled with each other, as shown in the third and fourth figures. In addition, in order to prevent the user from excessively turning the dial component 4 to restore the piercing member 6 to the locked state when releasing the fixed state of the piercing member 6, the assembly 3 is further provided with at least one stop block 32, and at least one stop block 32 is integrally connected to the end face of the assembly 3 with one end; the gripping portion 61 is further provided with a connecting portion 612, and the connecting portion 612 is movably inserted into the at least one stop block 32, as shown in the second figure. When the user turns the dial component 4 to drive the protrusion 42 to move to the end point of the track on the slide rail 31 and continues to apply external force, the assembly 3 will be pushed by the external force to rotate together with the dial component 4, and the stop block 32 further drives the piercing member 6 to rotate in the same direction, so that the positioning block 611 can be constantly maintained in a state corresponding to the positioning hole 411, as shown in the fourth and eighth figures. In addition, in order to facilitate the user to easily complete the dialing action during the operation, the dial assembly 4 is further provided with a protruding dial block 47. The user can drive the dial block 47 to drive the dial assembly 4 to rotate in the force application direction, and further drive the protrusion 42 to move along the trajectory direction of the slide rail 31, thereby cooperating with the assembly space 43 to complete or release the positioning of the puncture member 6, as shown in the second, fourth and eighth figures. In addition, in order to prevent the puncture member 6 from radially rotating or falling off during the puncture action, thereby affecting the progress of the operation, a clamping block 13 is further protruded from the inner wall surface of the end where the valve seat 1 and the tube 5 are assembled; and a clamping groove 52 is further recessed on the end where the tube 5 is inserted into the valve seat 1. The clamping block 13 and the clamping groove 52 are mutually clamped after the tube 5 is inserted into the valve seat 1, so that the tube 5 is fixed to the valve seat 1 and prevents the tube 5 from radially rotating and affecting the user's operation, as shown in the second figure. In addition, during the surgical process, it may be necessary to perform wound irrigation, blood removal or introduction, and gas removal steps to facilitate subsequent operations. Therefore, each pipe 21 is further provided with an insertion section 211, a groove section 212, and a connecting section 213. The insertion section 211 is respectively inserted into the corresponding two ends of the valve seat 1, and each valve 2 is pivotally assembled to each groove section 212. Each groove section 212 is respectively provided with a recess 2121. Each valve 2 is further provided with a protrusion 22 movably inserted into the corresponding recess 2121, and a flow channel hole 23. Each flow channel hole 23 is connected to each pipe 21 and the cross channel 12. The user can connect an external water source, medical gas or recovery tank to the connecting section 213, and by toggling the valve 2 to move each protrusion 22 in each recess 2121, the flow channel hole 23 is manipulated to control the flow of the pipe 21 to complete the introduction or removal of water or gas, as shown in Figures 9 and 10. In addition, in order to enable the protrusion 42 to slide smoothly on the slide rail 31, the present invention further includes a fixing ring 45 and a toggle member 46. The first through-hole 41 passes through both ends of the toggle member 46. The toggle member 46 is provided with at least one mounting hole 461. The fixing ring 45 is assembled on the toggle member 46. The protrusion 42 is movably assembled in the mounting hole 461 and assembled with the slide rail 31, and is strengthened by the fixing ring 45, so that when the toggle member 46 is pushed and rotated by an external force, the protrusion 42 can be driven and stably moved on the slide rail 31; it is worth mentioning that the mounting hole 461 may not be installed on the toggle member 46. The protrusion 42 is integrally connected to the inner ring surface of the toggle member 46 at one end and is directly assembled with the slide rail 31, and is strengthened by the fixing ring 45. When the toggle member 46 is pushed and rotated by an external force, the protrusion 42 is driven and moved on the slide rail 31, as shown in Figure 11. 1: Valve seat 11: Assembly portion 111: Assembly hole 12: Cross channel 13: Clamp 2: Valve 21: Pipe 211: Insertion section 212: Slot section 2121: Recess 213: Connecting section 22: Protrusion 23: Flow channel hole 3: Assembly part 31: Slide rail 32: Stop block 4: Turning assembly 41: First perforation 411: Positioning hole 42: Protrusion 43: Assembly space 44: Limiting block 45: Fixing ring 46: Turning part 461: Mounting hole 462: First annular protrusion 463: Second annular protrusion 47: Turning block 5: Pipe fitting 51: Second perforation 52: Clamping slot 6: Piercing part 61: Grip 611: Positioning block 612: Connecting part 62: Piercing part 621: Piercing end Figure 1 is a schematic perspective view of the present invention. Figure 2 is a schematic perspective view of an exploded perspective view of Figure 1. Figure 3 is a schematic perspective view of a partially enlarged cross-section of Figure 2. Figure 4 is a cross-sectional view taken along line IV-IV of Figure 1. Figure 5 is a schematic perspective view of the present invention in which the rotating member is actuated to release the fixed state of the sleeve and the piercing member. Figure 6 is a schematic perspective view of an exploded perspective view of Figure 5. Figure 7 is a cross-sectional view taken along line VII-VII of Figure 5. Figure 8 is a cross-sectional view taken along line VIII-VIII of Figure 5. Figure 9 is a schematic perspective view of the present invention in which the valve is actuated to connect the pipeline to the cross channel. Figure 10 is a cross-sectional view taken along line X-X of Figure 9. Figure 11 is a schematic perspective view of another embodiment of the rotating member of the present invention. 1: Valve seat 11: Assembly Department 111: Assembly hole 2: Valve 21: Pipeline 2121: concave part 22:convex part 23: Flow channel hole 3:Assembly parts 31: Slide rail 32: Stop block 41: First piercing 411: Positioning hole 42: Bump 45:Fixed ring 46: Dial piece 461:Mounting hole 462: First ring convex 463: Second ring convex 47: Turn block 5: Pipe fittings 51: Second piercing 52:Card slot 6:Piercing piece 61: Grip 611: Positioning block 612: Connecting part 62: puncture part 621: puncture end

Claims

1. A puncture device, which comprises: a valve seat, the valve seat comprising an assembly part, the assembly part being mounted on one end of the valve seat, the assembly part being provided with an assembly hole, a cross channel being formed in the valve seat, the assembly hole being connected to the cross channel; two valves, and two pipes corresponding to each valve, each pipe being inserted into the two ends corresponding to the valve seat, each pipe being connected to the cross channel respectively, the two valves being pivotally assembled on the two pipes, each valve controlling the conduction of each pipe respectively; an assembly part, the assembly part being mounted on the assembly hole, the other part of the assembly part protruding from the assembly hole and provided with at least one slide rail on the outer surface; a dial assembly, the dial assembly being set on the assembly part and provided at one end of the at least one slide rail, the dial assembly being provided with a first through-hole and at least one protrusion corresponding to the at least one slide rail, the first through-hole passing through the dial assembly and being connected to the The assembly hole and the cross channel are connected, and the edge of the first perforation hole is recessed with at least one positioning hole; the at least one protrusion slides on the at least one slide rail, and the dial assembly is driven to rotate by an external force and drives the at least one protrusion to move on the at least one slide rail. In addition, a space is formed between the dial assembly and the end face of the assembly; a pipe fitting is inserted into the valve seat and is located below the assembly portion, and the pipe fitting is provided with a second perforation, which is connected to the cross channel, the assembly hole and the first perforation; and a piercing member, which movably passes through the first perforation, the assembly hole, the cross channel and the second perforation in sequence, and the piercing member includes a grip and a piercing portion, one end of the piercing portion is connected to the grip portion, and the other end of the piercing portion forms a piercing end, and the grip portion is provided with at least one positioning block corresponding to the at least one positioning hole; wherein, When the piercing member passes through the first through-hole, the assembly hole, the cross channel and the second through-hole in sequence with the piercing portion, the at least one positioning block of the grip portion passes through the at least one positioning hole and falls into the assembly space. By toggling the toggle assembly to slide the at least one protrusion on the at least one slide rail, the position of the at least one positioning block in the assembly space is changed, thereby quickly completing the positioning of the piercing member.

2. The trocar as claimed in claim 1, wherein: One end of the at least one slide rail is further close to the assembly portion, and the other end of the at least one slide rail is obliquely extended around the outer surface of the assembly.

3. The trocar as claimed in claim 1, wherein: The assembly is further provided with at least one stop block, which is integrally connected to the end face of the assembly with one end; the gripping portion is further provided with a connecting portion, which is movably inserted into the at least one stop block. When the rotating component is driven to drive the at least one protrusion to move to the end point of the track on the at least one slide rail and continue to apply external force, the assembly is pushed by the external force to rotate together, and the stop block further drives the piercing member to rotate in the same direction.

4. The trocar as claimed in claim 1, wherein: The dial assembly is further provided with a limit block, which is arranged in the assembly space. The limit block cooperates with the slide rail to limit the displacement of the at least one positioning block in the assembly space to position the piercing member and the dial assembly.

5. The trocar as claimed in claim 1, wherein: The dial assembly further includes a fixed ring and a dial part. The first through hole passes through both ends of the dial part. The fixed ring is assembled on the dial part. The dial part is provided with at least one mounting hole. The at least one protrusion is movably assembled in the at least one mounting hole. The dial part is rotated by external force and drives the at least one protrusion to move on the at least one slide rail.

6. The trocar as claimed in claim 1, wherein: The dial assembly further includes a fixing ring and a dial member, the first through hole passes through both ends of the dial member, the at least one protrusion is integrally connected to the dial member, and the dial member is rotated by external force and drives the at least one protrusion to move on the at least one slide rail.

7. The trocar as claimed in claim 1, wherein: A clamping block is further protruded from the inner wall surface of one end where the valve seat and the pipe are assembled; and a clamping groove is further recessed from the end where the pipe is inserted into the valve seat. The clamping block and the clamping groove are mutually engaged after the pipe is inserted into the valve seat, so that the pipe is fixed to the valve seat.

8. The trocar as claimed in claim 1, wherein: Each pipeline is further provided with an insertion section, a groove section and a connecting section, the insertion sections are respectively inserted into the corresponding two ends of the valve seat, each valve is respectively pivotally assembled in each groove section, each groove section is respectively provided with a recess, each valve is further provided with a convex portion movably inserted in the corresponding recess, and a flow channel hole respectively connected to each pipeline and the cross channel, each valve is respectively driven by an external force to cause each convex portion to displace in each recess, and each flow channel hole is respectively controlled to control the conduction of each pipeline.

9. A puncture device as described in any one of claims 5 to 6, wherein the end face of the dial member away from the fixed ring is further provided with a first annular protrusion, the inner wall surface of the dial member is further provided with a second annular protrusion and a limit block, the limit block is connected to the second annular protrusion, the assembly space is located between the first annular protrusion and the second annular protrusion, the limit block cooperates with the slide rail to limit the displacement of the at least one positioning block in the assembly space, so as to position the assembly of the puncture member and the dial member.

10. The trocar as claimed in claim 1, wherein: The rotating assembly is further provided with a rotating block. The rotating block is driven by an external force to drive the rotating assembly to rotate in the same direction, and further drives the at least one protrusion to move along the track direction of the at least one slide rail.

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