WO2024017216A1 - Ensemble plateforme et agrafeuse - Google Patents

Ensemble plateforme et agrafeuse Download PDF

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Publication number
WO2024017216A1
WO2024017216A1 PCT/CN2023/107781 CN2023107781W WO2024017216A1 WO 2024017216 A1 WO2024017216 A1 WO 2024017216A1 CN 2023107781 W CN2023107781 W CN 2023107781W WO 2024017216 A1 WO2024017216 A1 WO 2024017216A1
Authority
WO
WIPO (PCT)
Prior art keywords
moving part
moving
axis
linkage
longitudinal axis
Prior art date
Application number
PCT/CN2023/107781
Other languages
English (en)
Chinese (zh)
Inventor
丁水澄
Original Assignee
天臣国际医疗科技股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN202210842160.5A external-priority patent/CN117442282A/zh
Priority claimed from CN202221849506.6U external-priority patent/CN217827970U/zh
Application filed by 天臣国际医疗科技股份有限公司 filed Critical 天臣国际医疗科技股份有限公司
Publication of WO2024017216A1 publication Critical patent/WO2024017216A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/068—Surgical staplers, e.g. containing multiple staples or clamps
    • A61B17/072—Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously

Definitions

  • the present disclosure relates to the field of medical devices, and in particular, to a platform assembly suitable for a stapler and a stapler having the platform assembly.
  • the stapler is a device used clinically to replace traditional manual suturing. Compared with traditional manual suturing, staplers can increase the speed of tissue suturing and reduce trauma to patients.
  • a stapler includes a tool assembly including a pair of clamps. During the surgery, the doctor needs to operate the stapler to cause a pair of clamps to close to hold the tissue between the pair of clamps. This operation process is more laborious.
  • the present disclosure provides a relatively labor-saving platform assembly and a stapler having the platform assembly.
  • the present disclosure provides a platform assembly suitable for use with a stapler.
  • the platform assembly includes: a first moving member, which is pivotably supported about a first axis at a first end thereof, and sequentially includes a first extension portion and a second extension portion extending non-parallelly from the first end thereof.
  • proximal side defines a minor angle, and has an abutment surface on its proximal side, wherein the abutment surface is located at the connection of the first extension part and the second extension part;
  • the linkage member is capable of moving along a longitudinal axis perpendicular to the first axis, and against the abutment surface, wherein as the first moving part rotates around the first axis from the first position to the second position, the first moving part pushes the linkage part so that the linkage part moves in the proximal direction along the longitudinal axis to cause the stapler to move
  • the tool component switches from open to closed.
  • the second extending portion when the first moving member is located at the first position, is substantially perpendicular to the longitudinal axis.
  • the first movable member also has a slope on its proximal side, the slope is located at an edge of the abutment surface close to the second end of the first movable member, and the slope tends to the third end of the first movable member.
  • the two ends gradually convex.
  • the platform assembly further includes an actuating member, the actuating member can move in a distal direction along the longitudinal axis to cause the tool assembly to fire, and when the first moving member is in the first position, the actuating member Moving in the proximal direction along the longitudinal axis, the actuating member pushes the first moving member against the second extension, causing the first moving member to rotate about the first axis toward the second position.
  • the actuating member can move in a distal direction along the longitudinal axis to cause the tool assembly to fire, and when the first moving member is in the first position, the actuating member Moving in the proximal direction along the longitudinal axis, the actuating member pushes the first moving member against the second extension, causing the first moving member to rotate about the first axis toward the second position.
  • the actuating member is provided with a protruding portion, wherein when the first moving member is in the first position, as the actuating member moves in the proximal direction along the longitudinal axis, the protruding portion passes against the second extending portion And pushing the first moving part makes the first moving part rotate around the first axis toward the second position.
  • the second extending part and the protruding part are spaced apart from each other.
  • the first moving part has a through hole that penetrates the first moving part along the longitudinal axis.
  • the linkage part includes a main body and a pair of lug parts located on opposite sides of the main body. The main body is inserted into In the passage hole, a pair of lugs are located on the proximal side of the first moving part and abut against the abutment surface.
  • the passage hole has a first rotation preventing surface
  • the main body part has a second rotation preventing surface matching the first rotation preventing surface
  • the first rotation preventing surface faces the second rotation preventing surface to limit the linkage. Rotate around the longitudinal axis.
  • the platform assembly further includes an actuating member, the actuating member can move in a distal direction along the longitudinal axis to cause the tool assembly to fire, the actuating member has a third anti-rotation surface, and the linkage member has a third anti-rotation surface.
  • the anti-rotation surface matches the fourth anti-rotation surface, wherein when the first moving part is in the first position, the third anti-rotation surface faces the fourth anti-rotation surface to limit the rotation of the linkage member around the longitudinal axis.
  • the platform assembly further includes: a second moving part, the first end of which is pivotally connected to the second end of the first moving part; and a third moving part, the first end of which is pivotally connected to the second end of the second moving part.
  • the second end is pivotally connected and is pivotably supported at its second end about the second axis, wherein as the third moving member rotates about the second axis from the third position to the fourth position, the first moving member rotates about the first The axis rotates from the first position to the second position.
  • the platform assembly further includes a trigger, which is pivotably supported about a third axis, wherein as the trigger rotates about the third axis from a fifth position to a sixth position, the trigger drives the third moving member by The third position turns to the fourth position.
  • the present disclosure also provides a stapler, which includes the platform assembly provided by the present disclosure.
  • the present disclosure also provides a tissue suturing method, which method includes: providing the stapler provided in the above aspect of the disclosure; and using the stapler to perform tissue suturing.
  • the first end of the first moving part can be regarded as the fulcrum
  • the second end of the first moving part can be regarded as the power point
  • the position of the first moving part in contact with the linkage can be regarded as the resistance. point. Therefore, the first moving part can act as a lever. It can be seen that in this way, the operation of switching the tool assembly from open to closed can be made more labor-saving.
  • the tangent plane of the abutting surface is close to the second end of the first moving member from the abutting surface. Starting from the edge, it slopes toward the first extension portion as it approaches the first end of the first moving member. That is to say, one end of the abutment surface extends to the first extension part, and the other end extends to the second extension part, so that from one end of the abutment surface to the other end, the tangent surface of the abutment surface is sandwiched by the longitudinal axis. angle changes.
  • this structure makes the linkage
  • the angle (acute angle) between the tangent plane and the longitudinal axis at the position where the component is in contact with the contact surface can always remain large (for example, greater than a certain threshold, which can be, for example, 30 degrees, 45 degrees, or 60 degrees, etc.) , so that the component of the force exerted by the first moving part on the linkage part in the longitudinal axis direction can always remain relatively large. In this way, the loss in the transmission process of the driving force can be reduced, thereby making the operation of switching the tool assembly from open to closed more labor-saving.
  • Figure 1 is a schematic structural diagram of a stapler according to an embodiment of the present disclosure.
  • FIGS. 2A to 2C are structural schematic diagrams showing the internal structure of the platform assembly of the stapler according to an embodiment of the present disclosure, in which the platform assembly is in different states in FIGS. 2A to 2C .
  • Fig. 3 is a schematic structural view of the first moving part of the stapler shown in Fig. 1.
  • FIG. 4 is a schematic structural diagram of the first moving part shown in FIG. 3 viewed from another perspective.
  • FIG. 5 is a schematic structural diagram of the linkage member of the stapler shown in FIG. 1 .
  • FIG. 6 is a schematic structural diagram of the linkage member shown in FIG. 5 viewed from another perspective.
  • FIG. 7 is a schematic structural diagram of a part of the actuator of the stapler shown in FIG. 1 .
  • FIG. 8 is a schematic structural diagram showing the cooperation mode of the linkage member and the actuator member of the stapler shown in FIG. 1 .
  • FIG. 9 is a schematic structural diagram showing the second moving part and the third moving part of the stapler shown in FIG. 1 .
  • 10A and 10B are structural schematic diagrams illustrating the process of causing the third moving part to leave the fourth position of the stapler shown in FIG. 1 .
  • FIG. 11 is an exploded schematic view of a portion of the platform assembly of the stapler shown in FIG. 1 .
  • FIGS. 12A and 12B are schematic structural views of the tool assembly of the stapler shown in FIG. 1 , in which the tool assembly is in different states in FIGS. 12A and 12B .
  • the stapler 10 may be an endoscopic stapler.
  • the stapler 10 may be an endoscopic linear cutting stapler. It can be understood that in other embodiments, according to this Disclosed staplers may also be of other types.
  • stapler 10 includes tool assembly 11 and platform assembly 12 .
  • platform assembly 12 may include elongated body 13 .
  • the elongated body 13 may be tubular.
  • the elongate body 13 may extend distally from the main body portion of the platform assembly 12 .
  • Tool assembly 11 may be attached to the distal end of elongate body 13 .
  • distal may refer to an end of the stapler that is far away from the doctor (or surgical robot).
  • proximal may refer to the end of the stapler that is close to the surgeon (or surgical robot).
  • Tool assembly 11 includes a pair of clamps 111,112.
  • the tool assembly 11 can be switched between open and closed.
  • a pair of clamps 111, 112 can clamp tissue therebetween.
  • a pair of jaws 111, 112 separate from each other to release tissue.
  • tool assembly 11 is in an open position.
  • clamp 111 may include an anvil and clamp 112 may include a cartridge for storing staples.
  • the tool assembly 11 can be caused to fire.
  • the staples are ejected from the staple cartridge to achieve tissue suturing.
  • the tool assembly 11 may also include a cutter. When the tool assembly 11 is fired, the cutter extends and the staples are ejected, thereby simultaneously achieving tissue cutting and suturing.
  • the platform assembly 12 includes a first moving part 14 and a linkage part 15 .
  • the first moving part 14 is pivotably supported at its first end 14a about the first axis a1.
  • the linkage 15 is movable about a longitudinal axis L perpendicular to the first axis a1.
  • the longitudinal axis L extends along the length of the stapler 10 .
  • the longitudinal axis L may be defined by the elongated body 13 , or the longitudinal axis L may be the axis of the elongated body 13 .
  • the linkage 15 can be sleeved on the elongated body 13 so as to be able to move along the longitudinal axis L.
  • the first moving member 14 sequentially includes a first extension portion 141 and a second extension portion 142 that extend non-parallel.
  • the first extension part 141 and the second extension part 142 define a minor angle ⁇ on the proximal side of the first moving part 14 .
  • the first moving member 14 is generally V-shaped, and the V-shaped opening faces the proximal side.
  • the first moving part 14 has a contact surface 143 , which is provided on the proximal side of the first moving part 14 , and the contact surface 143 is located at the connection between the first extension part 141 and the second extension part 142 .
  • the abutment surface 143 is located at the corner of the first extension part 141 and the second extension part 142 .
  • the contact surface 143 extends from the first extension part 141 to the second extension part 142 .
  • one end of the contact surface 143 extends to the first extension part 141 and the other end extends to the second extension part 142 .
  • the linkage member 15 abuts against the abutment surface 143 of the first moving member 14 .
  • the first moving part 14 rotates along the first direction around the first axis a1 from the first position shown in FIG. 2A to the second position shown in FIG. 2B , the first moving part 14 pushes the linkage part 15 toward the longitudinal axis L.
  • the lateral movement from the initial position shown in Figure 2A to the end position shown in Figure 2B causes the tool assembly 11 to switch from open to closed.
  • the first direction when viewed from the view direction of FIGS. 2A to 2C , the first direction may be a clockwise direction.
  • the term “initial position” and “end position” do not necessarily mean the two extreme positions of a component's stroke.
  • the first end of the first moving part can be regarded as the fulcrum
  • the second end of the first moving part can be regarded as the power point
  • the position of the first moving part in contact with the linkage can be regarded as the resistance. point. Therefore, the first moving part can act as a lever. It can be seen that in this way, the operation of switching the tool assembly from open to closed can be made more labor-saving.
  • the abutting surface is located at the connection between the first extension part and the second extension part that form a certain angle, the tangent plane of the abutting surface is close to the second end of the first moving member from the abutting surface. Starting from the edge, it slopes toward the first extension portion as it approaches the first end of the first moving member. That is to say, one end of the abutment surface extends to the first extension part, and the other end extends to the second extension part, so that from one end of the abutment surface to the other end, the tangent surface of the abutment surface is sandwiched by the longitudinal axis. angle changes.
  • this structure makes the linkage
  • the angle (acute angle) between the tangent plane and the longitudinal axis at the position where the component is in contact with the contact surface can always remain large (for example, greater than a certain threshold, which can be, for example, 30 degrees, 45 degrees, or 60 degrees, etc.) , so that the component of the force exerted by the first moving part on the linkage part in the longitudinal axis direction can always remain relatively large. In this way, the loss in the transmission process of the driving force can be reduced, thereby making the operation of switching the tool assembly from open to closed more labor-saving.
  • the second extension 142 may be substantially perpendicular to the longitudinal axis L.
  • the portion of the contact surface 143 located on the second extension 142 contacts the linkage member 15 , so the contact surface 143 and the linkage member 15
  • the cross section of the contact position is also substantially perpendicular to the longitudinal axis L.
  • the component of the force exerted by the first moving member 14 on the linkage member 15 is close to the maximum in the direction of the longitudinal axis L, and is close to the minimum in other directions.
  • the angle between the second extension part 142 and the longitudinal axis L gradually decreases, while the angle between the first extension part 141 and the longitudinal axis L gradually increases.
  • the portion of the contact surface 143 located on the first extension part 141 contacts the linkage member 15 .
  • the tangent plane at the contact position between the contact surface 143 and the linkage member 15 can always maintain a larger angle with the longitudinal axis L, so that the force exerted by the first moving member 14 on the linkage member 15 is on the longitudinal axis L. Portions are always kept large.
  • this implementation method can greatly reduce the loss of the driving force during the transmission process, thereby making the operation of switching the tool assembly from open to closed more labor-saving.
  • the first moving part 14 may also have a slope 144 .
  • the slope 144 is provided on the proximal side of the first moving part 14 .
  • the slope surface 144 may be located on the second end 14b of the abutment surface 143 close to the first moving part 14 at the edge. That is, along the direction from the first end 14a to the second end 14b, the abutment surface 143 and the slope surface 144 are arranged in sequence, and the abutment surface 143 and the slope surface 144 are connected to each other.
  • the slope portion 144 may be configured to gradually protrude toward the second end 14b of the first moving member 14 .
  • the slope can restrict the linkage part from rotating around the longitudinal axis. In this way, undesirable consequences caused by the linkage member rotating about the longitudinal axis can be avoided, thereby improving the reliability of the stapler.
  • platform assembly 12 may also include an actuator 16 .
  • the actuator 16 is arranged movably along the longitudinal axis L.
  • the actuating member 16 can be sleeved on the elongated body 13 so as to be movable along the longitudinal axis L.
  • Actuator 16 is used to cause the tool assembly 11 to fire.
  • the actuating member 16 is movable in a distal direction along the longitudinal axis L to cause firing of the tool assembly 11 .
  • the actuator 16 may also be used to cause the tool assembly 11 to switch from open to semi-closed. Specifically, when the first moving part 14 is in the first position, as the actuating part 16 moves in the proximal direction along the longitudinal axis L, the actuating part 16 pushes the first moving part 14 by abutting against the second extension part 142 , causing the first moving member 14 to rotate around the first axis a1 toward the second position, thereby causing the tool assembly 11 to switch from open to semi-closed.
  • the doctor can switch the tool assembly 11 to a semi-closed state by pulling the actuator 16 in the proximal direction, thereby reducing the size of the tool assembly 11
  • the size enables the tool assembly 11 to pass through the relatively narrow puncture channel smoothly. In this way, it is helpful to reduce the size of the puncture channel, thereby helping to reduce the damage to the patient during the operation.
  • this implementation can make the operation of switching the tool assembly from open to semi-closed more labor-saving.
  • the platform assembly may also include a push piece (or firing rod), one end of the push piece cooperates with the actuating member, and the other end cooperates with the cutter of the tool assembly, so that as the actuating member moves in the distal direction, The push piece moves in the distal direction and pushes the cutter to move in the distal direction.
  • the cutter drives the firing block in the tool assembly to move in the distal direction to push out the staples in the staple bin, thereby triggering the tool assembly, that is, cutting and suturing tissue.
  • the actuating member 16 may include a protrusion 161 .
  • the convex part 161 pushes the first moving part 14 by abutting against the second extension part 142, so that the first movement
  • the member 14 rotates about the first axis a1 in the first direction toward the second position.
  • the second extension part and the protruding part are spaced apart from each other when the first moving part is in the first position and the actuating part is not operated, there is an idle stroke in the movement of the actuating part along the longitudinal axis in the proximal direction. That is to say, when the first moving part is in the first position, if the actuating part is slightly pulled in the proximal direction, the actuating part will not cause the first moving part to rotate, that is, it will not cause the state of the tool assembly to change. Therefore, this implementation can avoid to a certain extent the risk of changing the status of the tool component due to misoperation, thereby improving the safety of the stapler.
  • the first moving part 14 also has a through hole 145 .
  • the passage hole 145 penetrates the first moving part 14 along the longitudinal axis L.
  • the linkage member 15 includes a main body part 151 and a pair of lug parts 152.
  • the pair of lug parts 152 are respectively provided on opposite sides of the main body part 151.
  • the main body part 151 is inserted into the through hole 145, and a pair of lug parts 152 are located on the proximal side of the first moving part 14 and abut against the abutment surface.
  • the main body portion 151 may be provided with a through hole 153 .
  • the elongated body 13 passes through the through hole 153.
  • the surface of the lug part 152 for contacting the first moving part 14 may be a smooth arc surface, so that when the first moving part 14 pushes the linkage part 15, the cooperation between the two Smoother.
  • Increasing the size of the linkage is beneficial to the stability of the linkage during movement, but it will take up more space.
  • the stability of the linkage during movement is ensured by the main body part having a larger size, and since the main body part is accommodated in the passage hole of the first moving part, the main body part does not occupy additional space. Space. It can be seen that this implementation method can make full and reasonable use of space, thereby taking up less space while taking into account stability.
  • the two lug portions respectively abut the portions of the abutment surface located on both sides of the passage hole. This structure can improve the stability of the linkage during movement.
  • the passage hole 145 of the first moving member 14 has a first anti-rotation surface 146
  • the main body portion 151 of the linkage member 15 has a second anti-rotation surface 154 adapted to cooperate with the first anti-rotation surface 146 .
  • the first anti-rotation surface 146 faces the second anti-rotation surface 154 to limit the rotation of the linkage part 15 around the longitudinal axis L.
  • the linkage can be further restricted from rotating around the longitudinal axis during movement, thereby further improving the reliability of the stapler.
  • a pair of first anti-rotation surfaces 146 may be provided through the hole 145 .
  • the pair of anti-rotation surfaces 146 may be a pair of inner surfaces of the passage hole 145 facing each other.
  • the main body part 151 may have a pair of second anti-rotation surfaces 154 on opposite sides.
  • the pair of first anti-rotation surfaces 146 respectively face the pair of second anti-rotation surfaces 154.
  • both the first anti-rotation surface 146 and the second anti-rotation surface 154 may be flat.
  • first anti-rotation surface and the second anti-rotation surface are flat surfaces, in other embodiments, the first anti-rotation surface and the second anti-rotation surface can also be in other special shapes.
  • the disclosure does not specifically limit the shapes of the first anti-rotation surface and the second anti-rotation surface, as long as they can cooperate to limit the rotation of the linkage member around the longitudinal axis.
  • the actuating member 16 may have a third anti-rotation surface 162
  • the linkage member 15 may also have a fourth anti-rotation surface 155 matching the third anti-rotation surface 162 .
  • the first moving part 14 is in the first position
  • the cooperative relationship between the first moving part 14 and the actuating part 16 is as shown in FIG. 8 .
  • the third anti-rotation surface 162 faces the fourth anti-rotation surface 155 to limit
  • the linkage 15 rotates about the longitudinal axis L.
  • the linkage rotation around the longitudinal axis can be further restricted, thereby further improving the reliability of the stapler.
  • the actuator 16 may further include a fitting portion 163 located at an end of the actuator 16 facing the linkage 15 and protruding toward the linkage 15 .
  • the actuating member 16 may include a pair of third anti-rotation surfaces 162 , and the pair of third anti-rotation surfaces 162 may be provided on the top of the fitting portion 163 .
  • the linkage member 15 may be provided with a pair of fourth anti-rotation surfaces 155 at its bottom. When the first moving part 14 is in the first position, the fitting part 163 of the actuating part 16 extends below the linkage part 15 so that the pair of third anti-rotation surfaces 162 face the pair of fourth anti-rotation surfaces 155 respectively. The linkage 15 is thereby restricted from rotating about the longitudinal axis L.
  • both the third anti-rotation surface 162 and the fourth anti-rotation surface 155 may be flat.
  • the third anti-rotation surface and the fourth anti-rotation surface are flat surfaces, in other embodiments, the third anti-rotation surface and the fourth anti-rotation surface can also be in other special shapes.
  • the disclosure does not specifically limit the shapes of the third anti-rotation surface and the fourth anti-rotation surface, as long as they can cooperate to limit the rotation of the linkage member around the longitudinal axis.
  • the platform assembly 12 may further include a second moving part 17 and a third moving part 18 .
  • the second end 14b of the first moving part 14 is pivotally connected to the first end of the second moving part 17.
  • the second end of the second moving part 17 is pivotally connected to the first end of the third moving part 18 .
  • the second end of the third moving member 18 is pivotably supported about the second axis a2.
  • the first axis a1 may be parallel to the second axis a2.
  • the first moving part 14 rotates along the first direction around the first axis a1 Rotate from the first position in Figure 2A to the second position in Figures 2B and 2C.
  • the first moving part 14 pushes the linkage 15 to move in the proximal direction along the longitudinal axis L from the initial position in Figure 2A to the end position in Figures 2B and 2C, thereby causing the tool assembly 11 to open from Switch to closed.
  • the rotation of the third moving part can be converted into the distal sliding of the linkage part along the longitudinal axis, thereby causing the tool assembly to switch from opening to closing.
  • the stapler using this tool assembly has a relatively simple structure and relatively high reliability.
  • the tool assembly also includes a force applying member 19 .
  • the force applying member 19 is used to apply a force on the first moving member 14 to cause the first moving member 14 to return to the first position from the second position.
  • the force applying member 19 may force the linkage 15 in the distal direction along the longitudinal axis L.
  • the linkage member 15 moves in the distal direction along the longitudinal axis L under the action of the force applying member 19, the linkage member 15 pushes the first moving member 14, thereby causing the first moving member 14 to move in the first direction around the first axis a1.
  • the opposite second direction is from rotation to return to the first position.
  • the force applying member 19 may be an elastic member 19 , which may be located on the linkage member 15 and presses the linkage 15, thereby exerting force on the linkage 15 in the distal direction along the longitudinal axis L.
  • the elastic member 19 can be a compression spring, which can be sleeved on the elongated body 13 .
  • the force-applying member may also be implemented as a torsion spring.
  • connection line is substantially co-linear with the connection line from the first end to the second end of the second moving member 17 .
  • the third moving part when the third moving part is located at the fourth position, it is substantially collinear with the second moving part, so that the first moving part will not return to the first position from the second position under the action of the force-applying part. Location. In this way, when the first movement moves from the first position to the second position, the first moving part will be maintained at the second position, so that the linkage part will be maintained at the end position, and the tool assembly will be maintained in the closed state.
  • the third moving part when the third moving part is located at the fourth position, the third moving part is located at a position reached by passing through a collinear position with the second moving part. That is to say, as the third moving part moves from the third position to the fourth position, the third moving part passes through a position that is collinear with the second moving part.
  • This implementation method can also achieve the purpose of the aforementioned implementation method.
  • the force exerted by the force applying part causes the first moving part to have a tendency to rotate in the second direction. Since the third movement is at a position reached by passing through a collinear position with the second moving part, the above-mentioned movement tendency of the first moving part will cause the third moving part to have a movement tendency to continue to rotate in the first direction. In this way, the third moving part will not return to the third position from the fourth position along the second direction under the action of the force-exerting part, so that the tool assembly can be kept in a closed state.
  • the second end of the second moving member 17 may be provided with a rotation stop 171 .
  • the anti-rotation part 171 abuts the third moving part 18 , thereby restricting the third moving part 18 from continuing to rotate in the first direction after reaching the fourth position. In this way, the third moving member 18 can be stopped at the fourth position.
  • the first end of the third moving element may also be provided with a rotation stop portion.
  • the anti-rotation part abuts against the second moving part. piece, thereby stopping the third movement at the fourth position.
  • the first end of the second moving part may also be provided with a rotation stop portion.
  • the anti-rotation part abuts against the first moving part, thereby stopping the third movement at the fourth position.
  • the second end of the first moving part may also be provided with a rotation stop portion.
  • the anti-rotation part abuts against the second moving part, thereby stopping the third movement at the fourth position.
  • the third moving part can be stopped at the fourth position in other ways.
  • a member may be used to block the third moving part to stop the third moving part in the fourth position.
  • the platform assembly 12 may also include an operating member 20 .
  • the operating member 20 is used to drive the third moving member 18 to rotate in the second direction to leave the fourth position under operation, that is, to drive the third moving member 18 to move along the second direction from the position collinear with the second moving member 17 in FIG. 10A .
  • the direction is rotated to the position in FIG. 10B where it is no longer collinear with the second moving member 17 .
  • the operating member 20 may be implemented as a cam 20 .
  • the cam 20 rotates, thereby pushing the third moving part 18 so that the third moving part 18 rotates along the second direction to leave the fourth position.
  • the operating member can cause the third moving member to rotate in the second direction under operation. to the position where it is collinear with the second moving part, thereby causing the third moving part to leave the fourth position.
  • platform assembly 12 may also include trigger 21 .
  • the trigger 21 is pivotably supported about a third axis a3.
  • the third axis a3 may be parallel to the first axis a1.
  • the third moving part 18 can be driven by the trigger 21 .
  • Platform assembly 12 may include housing 22 , which may define handle 221 .
  • the trigger 21 When the trigger 21 is operated, the trigger 21 moves toward the handle 221 from the fifth position to the sixth position.
  • the trigger 21 is released, the trigger 21 moves away from the handle 221 and returns to the fifth position from the sixth position.
  • the third moving part can be caused to move from the third position to the fourth position, thereby causing the tool assembly to switch from open to closed.
  • the platform assembly 12 may also include a force applying member 23 .
  • the force applying member 23 applies a force to the trigger 21 to return the trigger 21 to the fifth position from the sixth position. In this way, when the trigger 21 is released, the trigger 21 can return to the fifth position under the action of the force applying member 23 .
  • the force applying member 23 is a tension spring, and a boss 222 is provided on the inside of the housing 22 . One end of the force applying member 23 is attached to the boss 222 , and the other end is attached to the trigger 21 . It can be understood that the force applying member 23 The implementation is not limited to this.
  • the force applying member 23 may also be a torsion spring.
  • the trigger When operated, the trigger can directly drive the third moving part, or indirectly drive the third moving part via other intermediate components. This disclosure does not specifically limit this.
  • the tool assembly 12 may further include a driving member 24 and the platform assembly 12 may further include a guide rail 223 .
  • the guide rail 223 may be formed on the inner surface of the housing 22 .
  • the first end of the driving member 24 is pivotally connected to the trigger 21 , and the second end is guided by the guide rail 223 .
  • the second end of the driving member 24 abuts the third moving member 18 and promotes the third movement. member 18, so that the third moving member 18 moves from the third position to the fourth position.
  • the trigger 21 when the trigger 21 is released, the trigger 21 returns from the sixth position to the fifth position along the second direction around the third axis a3 under the action of the force-applying member 23 , and the driving member 24 is in the trigger position. It is separated from the third moving part 18 under the driving force of 21, and the third moving part 18 is maintained in the second position.
  • the third moving part can be driven to move from the third position to the fourth position by operating the trigger.
  • the third moving part will not return to the third position as the trigger returns to the fifth position, thus achieving decoupling of the trigger and the third moving part. This provides the basis for maintaining the tool assembly in a closed position after the trigger is released.
  • the second end of the driving member may be pivotally connected to the third moving member, and the first end of the driving member may be guided by the guide rail.
  • the trigger moves from the fifth position to the sixth position along the first direction around the third axis, the trigger abuts the first end of the driving member and pushes the first end of the driving member, so that the driving member drives the third moving member from the third position to the sixth position.
  • Position three moves to position four.
  • the trigger returns from the sixth position to the fifth position along the second direction around the third axis under the action of the force-applying member, and the driving member is separated from the trigger. In this way, the above object can also be achieved.
  • the first moving part 14 may be pivotably supported by the housing 21 about the first axis a1.
  • the housing 21 may include a pair of detachably connected shells 224, 225, and each of the shells 224, 225 may also be provided with a hole 226 on the inside.
  • a pair of bosses 147 may be provided on opposite sides of the first end of the first moving part 14 .
  • a pair of bosses 147 are pivotably inserted into the holes 226 of the shells 224 and 225 respectively, so that the first moving part 14 is supported by the shell 21 in a manner that is pivotable about the first axis a1.
  • the first axis a1 may be defined by the boss 147 , or the first axis a1 may be the axis of the boss 147 .
  • the method of supporting the first moving part is not limited to the above.
  • the third moving member 18 may be pivotably supported by the housing 22 about the second axis a2.
  • the inner side of each of the shells 224 and 225 may also be provided with a hole 227
  • the opposite sides of the second end of the third moving part 18 may be provided with a pair of bosses 181 .
  • a pair of bosses 181 are pivotably inserted into the holes 227 of the shells 224 and 225 respectively, thereby enabling the second end of the third moving part 18 to move It is supported by the housing 22 in a manner capable of pivoting about the second axis a2.
  • the second axis a2 may be defined by the boss 181 , or the second axis a2 may be the axis of the boss 181 .
  • the method of supporting the third moving part is not limited to the above.
  • the first moving member 14 may further include a pair of arms 148 provided at its second end 14b, and each arm 148 is provided with a through hole 149 .
  • the first end of the second moving part 17 is provided with a through hole 172 .
  • Platform assembly 12 may also include pin 25 .
  • the first end of the second moving part 17 extends between the pair of arms 148 of the first moving part 14 , and the pin 25 passes through a pair of through holes 149 and 172 , thereby connecting the second end of the first moving part 14 The end is pivotally connected to the first end of the second moving member 17 .
  • the second end of the first moving part may be provided with a rotating shaft part
  • the first end of the second moving part may be provided with a hole adapted to the rotating shaft part
  • the rotating shaft part may be inserted into the hole, thereby achieving pivotal connection between the first moving part and the second moving part.
  • the third moving member 18 may further include a pair of arm portions 182 provided at its first end, and each arm portion 182 is provided with a through hole 183 .
  • the second end of the second moving part 17 is provided with a through hole 173 .
  • the tool assembly may also include a pin 26 .
  • the second end of the second moving part 17 extends between a pair of arms 182 of the third moving part 18 , and the pin 26 passes through a pair of through holes 183 and 173 , thereby connecting the second end of the second moving part 17 The end is pivotally connected to the first end of the third moving member 18 .
  • the second end of the second moving part may be provided with a rotating shaft part
  • the first end of the third moving part may be provided with a hole that matches the rotating shaft part, and the rotating shaft part may be inserted into In this hole, the second moving part and the third moving part can be pivotally connected.
  • trigger 21 may be pivotably supported on housing 22 about third axis a3.
  • the inside of each of the housings 224 , 225 is provided with a hole 228
  • the trigger 21 is provided with a pair of bosses 211 on opposite sides.
  • the trigger 21 is at least partially placed between a pair of housings 224, 225, and a pair of bosses 211 are pivotably inserted into the holes 228 of the housings 224, 225 respectively, thereby enabling the trigger 21 to be supported in a manner that can be pivoted around the third axis a3. on the housing 22.
  • the third axis a3 may be defined by the boss 211 , or in other words, the third axis a3 may be the axis of the boss 211 .
  • the method of supporting the trigger is not limited to the above.
  • the trigger 21 may also be provided with a groove 212 , and a pair of holes 213 are respectively provided in two side walls of the groove 212 .
  • the first end of the driving member 24 is provided with a through hole 241 .
  • the tool assembly may also include a pin 27 .
  • the first end of the driving member 24 is inserted into the slot 212 , and the pin 27 passes through the through hole 241 and the pair of holes 213 , thereby pivotally connecting the first end of the driving member 24 to the trigger 21 .
  • the second end of the driver 24 A boss 242 may be provided, and the boss 242 may be inserted into the guide rail 223 so that the second end of the driving member 24 is guided by the guide rail 223 .
  • control 28 may be an elongated pull tab.
  • Control 28 extends between linkage 15 and tool assembly 11 .
  • the proximal end of the control member 28 cooperates with the linkage member 15, and the distal end of the control member 28 cooperates with the tool assembly 11, so that as the linkage member 15 moves in the proximal direction along the longitudinal axis L, the control member 28 moves in the proximal direction along the longitudinal axis L. movement, causing the tool assembly 11 to switch from open to closed.
  • the proximal end of the control member 28 may be provided with a hole 281
  • the tubular elongated body 13 may be provided with a pair of grooves 131 penetrating its interior and exterior.
  • Platform assembly 12 may also include a ring 29 and pin 30 provided with a pair of holes 291 .
  • the control member 28 is inserted into the elongated body 13
  • the ring 29 is sleeved on the elongated body 13
  • the pin 30 is inserted into the hole 281 , a pair of grooves 131 and a pair of holes 291 .
  • the linkage piece 15 is sleeved on the ring 29 , and a shoulder is provided on the inner circumference of the linkage piece 15 , and the shoulder is located on the far side of the ring 29 and abuts against the ring 29 .
  • the linkage 15 moves in the proximal direction along the longitudinal axis L
  • the linkage 15 pushes the ring 29 so that the control member 28 moves in the proximal direction along the longitudinal axis L, causing the tool assembly 11 to switch from open to closed.
  • control member can follow the linkage member to move distally along the longitudinal axis, and the control member can rotate about the axis of the elongated body, which provides a basis for realizing rotation of the tool assembly about the axis of the elongated body.
  • the platform assembly 12 may also include a cap 31 and a compression spring 32 .
  • the cap 31 is provided with a through hole 311, and the pin 30 also passes through the through hole 311 of the cap 31.
  • the compression spring 32 is located on the proximal side of the cap 31 .
  • the control member 28 moves in the proximal direction, and the compression spring 32 yields under pressure.
  • the control member 28 moves distally under the elastic restoring force of the compression spring 32, thereby causing the tool assembly 11 to switch from closed to open.
  • control part can also cooperate with the linkage part in other ways.
  • the proximal end of the control member may be directly fixedly connected to the linkage member.
  • the linkage piece can drive the control member to move in the proximal direction along the longitudinal axis, thereby causing the tool assembly to switch from open to closed; as the linkage piece moves from the end position to the initial position, The linkage member can drive the control member to move distally along the longitudinal axis, thereby causing the tool assembly to switch from closed to open.
  • control part there are many ways for the control part to cooperate with the tool assembly, and this disclosure does not specifically limit this.
  • clamps 111 and 112 are pivotably connected by pins 113 .
  • the clamp 111 is provided with a guide groove 114, which is proximal and gradually extends toward the side where the clamp 112 is located.
  • Tool assembly 11 also includes pin 115 attached to the distal end of control 28 .
  • the pin 115 also moves in the proximal direction along the longitudinal axis L from the position in Figure 12A to the position in Figure 12B. During this process, the pin 115 is matched with the guide groove 114 When closed, the drive clamp 111 rotates around the pin 113 from the position in FIG. 12A to the position in FIG. 12B , thereby causing the tool assembly 11 to switch from open to closed.
  • the pin 115 moves distally along the longitudinal axis L from the position in Figure 12B to the position in Figure 12A.
  • the pin 115 cooperates with the guide groove 114, and the clamp 111 is driven to rotate around the pin axis 113 from the position in Figure 12B to the position in Figure 12A, thereby causing the tool assembly 11 to switch from closed to open.
  • tissue suturing method can be used to suture human or animal tissue.
  • this method can be used to suture the digestive tract of humans or animals.
  • the method includes: providing the stapler provided in the above embodiments of the present disclosure; and using the stapler to suture the tissue.
  • first or second etc. may be used in this disclosure to describe various elements (such as a first moving part and a second moving part), these elements are not limited by these terms. Terms are simply used to distinguish one element from another.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Portable Nailing Machines And Staplers (AREA)

Abstract

L'invention concerne un ensemble plateforme (12) approprié pour une agrafeuse (10) et une agrafeuse (10) comprenant ledit ensemble. L'ensemble plateforme (12) comprend : un premier élément mobile (14), qui est supporté avec faculté de pivotement autour d'un premier axe (a1) à une première extrémité (14a) de celui-ci ; à partir de la première extrémité (14a) du premier élément mobile (14), ledit élément comprend successivement une première partie d'extension (141) et une seconde partie d'extension (142) qui ne s'étendent pas en parallèle, celle-ci définit un angle inférieur (α) de son côté proximal, et présente une surface de butée (143) de son côté proximal, la surface de butée (143) étant située au niveau de la liaison entre la première partie d'extension (141) et la seconde partie d'extension (142) ; un élément de liaison (15), qui peut se déplacer le long d'un axe longitudinal perpendiculaire au premier axe (a1) et venir en butée contre la surface de butée (143), celle-ci suivant le premier élément mobile en rotation autour du premier axe (a1) d'une première position à une seconde position, et le premier élément mobile (14) pousse l'élément de liaison (15), amenant l'élément de liaison (15) à se déplacer le long de l'axe longitudinal dans la direction du côté proximal, amenant ainsi un ensemble outil (11) de l'agrafeuse (10) à passer de l'ouverture à la fermeture. La présente application est relativement économe en travail, ce qui permet d'améliorer l'expérience d'utilisation de l'agrafeuse (10).
PCT/CN2023/107781 2022-07-18 2023-07-17 Ensemble plateforme et agrafeuse WO2024017216A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN202210842160.5 2022-07-18
CN202221849506.6 2022-07-18
CN202210842160.5A CN117442282A (zh) 2022-07-18 2022-07-18 平台组件及吻合器
CN202221849506.6U CN217827970U (zh) 2022-07-18 2022-07-18 平台组件及吻合器

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Publication Number Publication Date
WO2024017216A1 true WO2024017216A1 (fr) 2024-01-25

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CN218684551U (zh) * 2022-07-18 2023-03-24 天臣国际医疗科技股份有限公司 闭合驱动机构及医用吻合器

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US20060175375A1 (en) * 2005-02-07 2006-08-10 Ethicon Endo-Surgery, Inc. Surgical stapling instrument incorporating a multi-stroke firing mechanism with return spring rotary manual retraction system
CN204158438U (zh) * 2014-09-19 2015-02-18 重庆康美唯外科器械有限公司 吻合器的复位省力结构
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CN110099618A (zh) * 2016-12-21 2019-08-06 爱惜康有限责任公司 能够关节运动的外科缝合器械
CN111150444A (zh) * 2018-11-08 2020-05-15 上海博洽医疗器械有限公司 腔镜外科吻合器的启闭操纵机构
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CN218684548U (zh) * 2022-07-18 2023-03-24 天臣国际医疗科技股份有限公司 击发切换机构及外科吻合器
CN218684552U (zh) * 2022-07-18 2023-03-24 天臣国际医疗科技股份有限公司 击发切换机构及医用吻合器
CN218684550U (zh) * 2022-07-18 2023-03-24 天臣国际医疗科技股份有限公司 闭合驱动机构及医用吻合器
CN218684551U (zh) * 2022-07-18 2023-03-24 天臣国际医疗科技股份有限公司 闭合驱动机构及医用吻合器

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