Abstract: A cartridge assembly and a surgical stapler are provided. The cartridge assembly includes: a staple strip including a staple strip body; a support member; a cartridge cover including a second surface arranged relative to the first surface of the staple strip body, wherein a first gap is formed between the first surface of the staple strip body and the second surface of the cartridge cover; a firing member including a cutting portion, wherein the highest point of the cutting portion is higher than the first surface of the staple strip body. By forming the first gap, the cutting portion of the firing member is higher than the first surface of the staple strip, which facilitates the cutting portion to separate the staples from the staple strip body.

Abstract: A firing mechanism and a circular stapler are provided. The firing mechanism includes a staple pushing assembly, which includes an actuating rod provided with a stopping groove; a firing handle, wherein a pin post is provided in the firing handle, a first end of the pin post is capable of protruding from a first end of the firing handle and entering the stopping groove, to stop the firing handle from rotating relative to the actuating rod; and a pressing button capable of moving along a first direction to press the first end of the pin post to move towards a second end of the firing handle. Before the stapler reaches a ready-to-fire state, the pin post is inserted in the stopping groove of the actuating rod, to limit the rotation of the firing handle, therefore the operator cannot press the firing handle to fire the stapler.

Abstract: A closure driving mechanism and a surgical stapler are provided. The closure driving mechanism includes a firing handle, a first slider, a locking member, a closure driver, and an actuating rod. The locking member fits with the first slider when the firing handle is actuated in an initial state and separates from the first slider after the stapler being fired. Therefore, the closure driver is locked by the fit cooperation between the first slider and the locking member after a head assembly is closed, to avoid the pulling sheet from moving distally during a firing process. After the firing process is fired, the locking member no longer locks the closure driver, therefore, the cartridge and the anvil can be opened automatically.

Abstract: The present disclosure provides a closure driving mechanism and a medical stapler including the same. The closure driving mechanism includes a driving part and a cylinder body, the driving part is connected with a closure pulling sheet of the stapler, and a cavity provided with a one-way valve is formed inside the cylinder body. When the driving part moves toward a distal side of the stapler, a volume of the cavity is decreased, the one-way valve is closed, and the driving part drives the closure pulling sheet to move distally, so as to open a head assembly of the stapler. Since the driving part is subjected to a resistance of compressed air in the cavity, a movement speed of the driving part is decreased, and the head assembly is opened slowly to prevent a force of opening the head assembly being too large to damage surrounding tissues.

Abstract: An anastomosis protection device, including: a protective sleeve located inside a tubular tissue and positioned correspondingly to an anastomotic stoma; a first fixing assembly provided on an outer wall of the tubular tissue, wherein the first fixing assembly comprises at least one electromagnetic member; a power supply assembly electrically connected to the electromagnetic member, used for supplying power to the electromagnetic member, wherein the electromagnetic member is configured to become magnetic when powered on; and a second fixing assembly provided on an inner surface of the protective sleeve, wherein the second fixing assembly and the electromagnetic member of the first fixing assembly are relatively fixed by means of magnetic attraction. The device provides an extension and retraction space for the tissue.

Abstract: An anastomosis protection device is provided, including: a protective sleeve located inside a tubular tissue and positioned correspondingly to the anastomotic stoma; at least one fixing assembly, wherein the fixing assembly comprises at least one first fixing member and at least one second fixing member, wherein the first fixing member is provided on an outer wall of the tubular tissue, the second fixing member is provided on an inner surface of the protective sleeve and positioned correspondingly to the first fixing member, and the first fixing member and the second fixing member being relatively fixed by means of magnetic attraction. The device provides an extension and retraction space for the tissue.

Abstract: A closure driving mechanism and a surgical stapler are provided. The closure driving mechanism includes a first slider, a locking member, a closure driver and a pushing block, the first slider is connected to the closure driver and includes a first fitting portion, the locking member includes a second fitting portion and a first lifting portion connected to each other, the pushing block includes a second lifting portion located under the first lifting portion. When the head assembly is closed, the closure driver is locked by the locking member fitting with the first slider. After the stapler is fired and the pushing block is lifted, the locking member separates from the first slider. Therefore, the closure driver can move distally to open the head assembly.

Abstract: The present disclosure provides a closure driving mechanism and a medical stapler including the same. The closure driving mechanism includes a driving part and a cylinder body, the driving part is connected with a closure pulling sheet of the stapler, and a cavity provided with a one-way valve is formed inside the cylinder body. When the driving part moves toward a distal side of the stapler, a volume of the cavity is decreased, the one-way valve is closed, and the driving part drives the closure pulling sheet to move distally, so as to open a head assembly of the stapler. Since the driving part is subjected to a resistance of compressed air in the cavity, a movement speed of the driving part is decreased, and the head assembly is opened slowly to prevent a force of opening the head assembly being too large to damage surrounding tissues.

Abstract: A closure driving mechanism and a surgical stapler are provided. The closure driving mechanism includes a firing handle, a first slider, a locking member, a closure driver, and an actuating rod. The locking member fits with the first slider when the firing handle is actuated in an initial state and separates from the first slider after the stapler being fired. Therefore, the closure driver is locked by the fit cooperation between the first slider and the locking member after a head assembly is closed, to avoid the pulling sheet from moving distally during a firing process. After the firing process is fired, the locking member no longer locks the closure driver, therefore, the cartridge and the anvil can be opened automatically.

Abstract: A firing mechanism and a circular stapler are provided. The firing mechanism includes a staple pushing assembly, which includes an actuating rod provided with a stopping groove; a firing handle, wherein a pin post is provided in the firing handle, a first end of the pin post is capable of protruding from a first end of the firing handle and entering the stopping groove, to stop the firing handle from rotating relative to the actuating rod; and a pressing button capable of moving along a first direction to press the first end of the pin post to move towards a second end of the firing handle. Before the stapler reaches a ready-to-fire state, the pin post is inserted in the stopping groove of the actuating rod, to limit the rotation of the firing handle, therefore the operator cannot press the firing handle to fire the stapler.

Abstract: The present invention provides a tissue closure device, comprising: a first and a second clamping base which form a cavity there between for accommodating a tubular tissue; and a pouch assembly comprises: a tying band provided with a first free end and a second free end; a first tying band buckle which is arranged adjacent to the first free end in an initial state; a second tying band buckle arranged adjacent to the second free end in an initial state, wherein the second tying band buckle is buckled with the first tying band buckle after the first and the second clamping base are closed; and a first driving mechanism which enables the first and the second tying band buckle to move synchronously after the first and the second tying band buckle are buckled and then cooperate with the tying band to gather the tubular tissue into a pouch.

Abstract: The present invention provides a tissue closure device, comprising: a first and a second clamping base which form a cavity there between for accommodating a tubular tissue; and a pouch assembly comprises: a tying band provided with a first free end and a second free end; a first tying band buckle which is arranged adjacent to the first free end in an initial state; a second tying band buckle arranged adjacent to the second free end in an initial state, wherein the second tying band buckle is buckled with the first tying band buckle after the first and the second clamping base are closed; and a first driving mechanism which enables the first and the second tying band buckle to move synchronously after the first and the second tying band buckle are buckled and then cooperate with the tying band to gather the tubular tissue into a pouch.

Abstract: A circular stapler includes a staple body and an anvil assembly. The staple body includes an annular staple cartridge and an annular cutter located at a distal end thereof. The anvil assembly includes an annular anvil, an annular cutting pad and an anvil shaft. When the staple body and the anvil assembly are closed, the annular staple cartridge is associated with the annular anvil and the annular cutting pad to form at least two connected fixing spaces having height difference. The circular stapler facilitates fixing the severed staples for easily cutting. A buffer may be formed between the tissues near the new formed staples and the tissue near the severed staples in order to avoid or reduce lateral slipping, thereby reducing dragging the tissues on the end face of the anvil.

Abstract: An introducer accessory for being fitted with a circular stapler is disclosed, and pertains to the technical field of medical instrument. The introducer accessory at least comprises a sleeve portion sleeved around a distal end of the circular stapler and an introducing portion disposed at a distal end of the sleeve portion. And the introducing portion comprises a spiral member in a conical shape with a cavity and a traction member, the traction member extends in the cavity of spiral member to connect with the distal end of the spiral member such that when the traction member is pulled by an external force, the distal end of the spiral member is pulled out by the traction member through the cavity which causes the spiral member to be unwound internally and finally to form a strip body to withdraw through the circular stapler. Thus, the withdrawing process of introducer accessory can avoid injury to patient during surgery.

Abstract: A linear suturing and cutting device, comprising an upper jaw and a lower jaw capable of being closed or opened relative to each other; said upper jaw includes an anvil; said lower jaw includes a staple cartridge frame, said staple cartridge frame is detachably provided with a staple cartridge, said staple cartridge is arranged with cartridge holes inside which run throughout said staple cartridge to its working surface, and staple pushers correspondingly disposed inside said cartridge holes and being capable of sliding relative to said cartridge holes, said staple cartridge frame is slidably provided with a firing piece inside, said firing piece is configured with a wedge-shape staple pushing member capable of driving said staple pushers to slide in said cartridge holes, said cartridge holes are configured to be inclined towards the distal end of said staple cartridge.

Abstract: A linear surgical stapler includes upper and lower jaws, an anvil and a cartridge respectively mounted on opposite far ends of the upper and lower jaws, a handle portion, a slider, and a button base relatively fixed to the slider. The lower jaw therein includes a staple drive bar and a cutter pusher. The slider is mounted with the button base. Each lateral side of the button base is pivotally associated with an operation button which is rotatable between a first status where an operating surface of the operation button is perpendicular to an axis of the linear surgical stapler, and a second status where the operating surface of the operation button is parallel to the axis of the linear surgical stapler. Since the operation buttons can be simultaneously collapsed adjacent to the jaws, the profile of the whole instrument and the packaging costs can be reduced.

Abstract: A circular stapler includes a staple body and an anvil assembly. The staple body includes an annular staple cartridge and an annular cutter located at a distal end thereof. The anvil assembly includes an annular anvil, an annular cutting pad and an anvil shaft. When the staple body and the anvil assembly are closed, the annular staple cartridge is associated with the annular anvil and the annular cutting pad to form at least two connected fixing spaces having height difference. The circular stapler facilitates fixing the severed staples for easily cutting. A buffer may be formed between the tissues near the new formed staples and the tissue near the severed staples in order to avoid or reduce lateral slipping, thereby reducing dragging the tissues on the end face of the anvil.

Abstract: This invention provides a fastening assembly and a method for manufacturing the fastening assembly. The method for manufacturing the fastening assembly is used for an electronic apparatus. The electronic apparatus includes a first case. The method at least includes the following steps. A boss is embedded into a seat by hot melting to allow the boss and the seat to form a first fastening element, and the boss has a screwed hole. Then, the first fastening element is disposed at the first case by hot melting.

Abstract: An introducer accessory for being fitted with a circular stapler, the circular stapler comprising an anvil assembly and a staple cartridge assembly, the staple cartridge assembly including a staple cylinder (1) and a staple cartridge (2) being mutually fixed, wherein the introducer accessory at least comprises a sleeve portion (4) sleeved around a distal end of the circular stapler and an introducing portion (6) disposed at a distal end of the sleeve portion (4); a maximum outer diameter of the introducing portion (6) is equal to a minimum outer diameter of the sleeve portion (4); the introducing portion (6) is a spiral member, one end of a spiral wire of the spiral member is connected with a traction member and the other end is connected with the sleeve portion. A part of the introducer accessory or the whole introducer accessory can be pulled out from the circular stapler in one piece in the form of a strip.

Abstract: A linear surgical stapler includes upper and lower jaws, an anvil and a cartridge respectively mounted on opposite far ends of the upper and lower jaws, a handle portion, a slider, and a button base relatively fixed to the slider. The lower jaw therein includes a staple drive bar and a cutter pusher. The slider is mounted with the button base. Each lateral side of the button base is pivotally associated with an operation button which is rotatable between a first status where an operating surface of the operation button is perpendicular to an axis of the linear surgical stapler, and a second status where the operating surface of the operation button is parallel to the axis of the linear surgical stapler. Since the operation buttons can be simultaneously collapsed adjacent to the jaws, the profile of the whole instrument and the packaging costs can be reduced.