Suturing device with improved needle movement mechanism

Abstract

The present disclosure relates to a one-handed automatic suturing device with needle movement of a double-ended needle, comprising: a first jaw element and a second jaw element movable relative to each other between an open position and a closed position, wherein the first jaw element has an alternating mechanism that alternates between a retaining position, in which the alternating mechanism is configured to retain a first end of the double-ended needle with a first retaining force, and a release position, in which the alternating mechanism is configured to release the needle, each time the jaw element moves to the closed position; and the second jaw element has a retaining mechanism for retaining and releasing the second end of the double-ended needle, the retaining mechanism being configured to retain the second end of the double-ended needle with a second retaining force that is weaker than the first retaining force.

Description

[Technical Field]

[0001] The present disclosure relates to an improved suturing device, and in particular to an automatic or semi-automatic disposable suturing device. Preferably, the device is a single-handed suturing device. [Background technology]

[0002] Surgical procedures within the abdominal cavity require access, which can be achieved through laparotomy or minimally invasive techniques. Laparotomy is very common, with approximately 2 million procedures performed annually in the United States. The final step in surgical intervention is wound closure. Despite many advances in surgical techniques, surgical equipment, and surgical supplies, complications after abdominal wall closure remain a persistent problem. Ideally, abdominal closure should be efficient, provide strength, and act as a barrier to infection. In addition, there should be a low incidence of fascial dehiscence, infection, hernia formation, suture sinus formation, and incisional pain. Experimental and clinical data provide solid information regarding the surgical techniques necessary to minimize postoperative abdominal wall complications.

[0003] However, suturing abdominal wounds is a laborious and time-consuming process that can increase the risk of complications, especially after a long and very demanding surgical procedure. Additionally, abdominal closure is the most dangerous moment of surgery for staff and surgeons due to the risk of puncture wounds and the risk of infection transmission. Furthermore, time in the operating room is costly, and saving time can mean providing treatment to more patients.

[0004] Existing suturing instruments are associated with many disadvantages and inconveniences. They are typically difficult to use, do not ensure patient safety, lack precision, and are often mechanically complex. Therefore, it would be desirable to provide an instrument that helps surgeons adhere to proper abdominal closure and reduces the time required to place sutures. Preferably, such an instrument should also reduce the risk of puncture wounds, simplify suture placement, and be mechanically simple and robust, while also being lightweight and compact for easy handling. Summary of the Invention

[0005] The present disclosure relates to an improved suturing device incorporating an automatic needle movement mechanism for a double-ended needle. The suturing device may be a one-handed automatic suturing device, and the movement of the needle between the jaws is preferably automatic, in the sense that the jaw opening and closing mechanism also controls the movement of the needle, or the jaw opening and closing mechanism is mechanically synchronized with the movement of the needle, preferably without the need for an additional switch to control the movement of the needle.

[0006] In the first embodiment, the one-handed automatic suturing device includes: a first jaw element and a second jaw element movable relative to one another between an open position and a closed position, the first jaw element and the second jaw element pivotable relative to one another about a common pivot joint; The first jaw element includes an alternating mechanism that presses the jaw elements together when the jaw elements are moved to a closed position. a retention position, wherein the alternating mechanism is configured to retain a first end of the double-ended needle with a first retention force; a release position, in which the alternating mechanism is configured to release the needle; and The second jaw element includes a retention mechanism for retaining and releasing the second end of the double-ended needle, the retention mechanism including a first jaw element and a second jaw element configured to retain the second end of the double-ended needle with a second retention force that is weaker than the first retention force.

[0007] FIG. 1 shows an example of a single-handed automatic suturing device with a double-ended needle, in which the movement of the needle back and forth between the first and second jaw elements is mechanically synchronized with an alternating mechanism. A user can hold the suturing device in one hand. The jaw elements of the suturing device may have a general shape and function similar to a handheld stapler, and when pressed together, the alternating mechanism transitions from a retaining position to a released position or from a released position to a retaining position. The alternating mechanism should be configured to automatically handle both of these transitions when the jaw elements are pressed together. When the jaw elements separate, the alternating mechanism remains in the position it assumed after the jaw elements were pressed together. Preferably, the step of separating the jaw elements to the open position is performed by a jaw-opening spring or any other suitable element. For this purpose, an element, such as a spring element or a flexible element, having inherent energy that can be used to move the jaw elements from the closed position to the open position is typically provided. A user can then use one hand to use the grip to press the jaw elements together and release the grip to flex the jaw elements back together, thus allowing suturing using only one hand by moving the needle back and forth between the first and second jaw elements.

[0008] The suturing device with an integrated needle movement mechanism disclosed herein provides improved, particularly precise and robust, designs for suturing devices for faster and more accurate surgical suturing, allowing a user to repeatedly press the jaw elements together using only one hand to move a double-ended needle back and forth between the jaw elements. The process of transferring the needle from one jaw element to the other can be accomplished by a sequential mechanism within the tool. In preferred embodiments, the first jaw element includes an alternating mechanism for alternating between a retaining position, in which the alternating mechanism is configured to retain the double-ended needle, and a releasing position, in which the alternating mechanism is configured to release the double-ended needle. The alternating mechanism can be configured to alternate between these positions each time the suturing device moves from the open position to the closed position. In a further preferred embodiment, the retaining mechanism located on the second jaw element is a passive mechanism configured to retain and release the double-ended needle.

[0009] The suturing device is preferably configured such that when the alternating mechanism is in the release position and the first jaw element and the second jaw element move from the closed position to the open position, the retaining mechanism retains the second end of the double-ended needle, and when the alternating mechanism is in the retaining position and the first jaw element and the second jaw element move from the closed position to the open position, the second end of the double-ended needle is released from the retaining mechanism.

[0010] It is further preferred that the alternating mechanism be an active mechanism that includes, for example, parts that move to change its function, and that the retaining mechanism be a passive mechanism that does not include parts that move to change its function. The alternating mechanism may include parts that move, for example, in response to relative movement of the jaw elements, to change its ability to retain the double-ended needle, and thereby change the retention force of the double-ended needle, as the alternating mechanism alternates between the retaining position and the release position. In contrast to the active mechanism of the alternating mechanism, it is further preferred that the retention mechanism be a passive mechanism that does not include moving parts that change its ability to retain the double-ended needle. Thus, the retention mechanism may be configured to retain the double-ended needle with a constant retention force.

[0011] The retention force preferably refers to the amount of force parallel to the axial length of the double-ended needle required to extract the double-ended needle from the retention or alternating mechanism. The retention mechanism is preferably a passive mechanism associated with a constant retention force, while the alternating mechanism is preferably an active mechanism configured to alternate between a retention position and a release position upon closing of the jaw elements. In the release position, the alternating mechanism may be configured to retain the double-ended needle with a third retention force that is weaker than the second retention force, or even with substantially zero retention force. As a result, because the first retention force is stronger than the second retention force, which is stronger than the third retention force, if the alternating mechanism alternates between a configuration configured to retain the double-ended needle with a high retention force and a configuration configured to retain the double-ended needle with a low retention force, while the retention mechanism is always configured to retain the double-ended needle at a retention force in between, the double-ended needle will move between the jaw elements of the suturing device each time the suturing device is moved to the closed position and then to the open position. [Brief explanation of the drawings]

[0012] [Figure 1] 1 illustrates a suturing device with a double-ended needle according to certain embodiments of the present disclosure. [Figure 2A] 1 illustrates an exemplary alternating mechanism and retention mechanism. [Figure 2B] 1 illustrates an exemplary alternating mechanism and retention mechanism. [Figure 2C] 1 illustrates an exemplary alternating mechanism and retention mechanism. [Figure 2D] 1 illustrates an exemplary alternating mechanism and retention mechanism. [Figure 2E] 1 illustrates an exemplary alternating mechanism and retention mechanism. [Figure 2F] 1 illustrates an exemplary alternating mechanism and retention mechanism. [Figure 3A] 1 illustrates an exemplary alternating mechanism and retention mechanism. [Figure 3B] 1 illustrates an exemplary alternating mechanism and retention mechanism. [Figure 3C] 1 illustrates an exemplary alternating mechanism and retention mechanism. [Figure 3D] 1 illustrates an exemplary alternating mechanism and retention mechanism. [Figure 3E] 1 illustrates an exemplary alternating mechanism and retention mechanism. [Figure 3F] 1 illustrates an exemplary alternating mechanism and retention mechanism. [Figure 4A] 10 illustrates further exemplary alternating and retaining mechanisms. [Figure 4B] 10 illustrates further exemplary alternating and retaining mechanisms. [Figure 4C] 10 illustrates further exemplary alternating and retaining mechanisms. [Figure 4D] 10 illustrates further exemplary alternating and retaining mechanisms. DETAILED DESCRIPTION OF THE INVENTION

[0013] The present disclosure relates to a suturing device with double-ended needle movement, the suturing device including first and second jaw elements movable relative to one another between an open position and a closed position. Preferably, a user may hold the jaw elements with one hand and press the jaw elements together, thereby moving the suturing device from the open position to the closed position. The first jaw element further preferably includes an alternating mechanism that alternates between a retaining position and a release position each time the jaw element moves to the closed position. The retaining position is preferably configured to retain or hold the first end of the double-ended needle, such as with a first retention force. The release position is preferably configured to release the double-ended needle. The second jaw element of the suturing device may include a retention mechanism configured to retain and / or retain and release the double-ended needle, such as the second end of the double-ended needle. The retention mechanism may be configured to retain or hold the double-ended needle, such as the second end of the double-ended needle, with a second retention force that is weaker than the first retention force. It is further preferred that the double ended needle include a suture hole located between the first and second ends of the double ended needle.

[0014] In certain embodiments of the present disclosure, the suturing device is configured such that when the alternating mechanism is in the release position and the first and second jaw elements move from the closed position to the open position, the retaining mechanism retains the second end of the double-ended needle, and when the alternating mechanism is in the retaining position and the first and second jaw elements move from the closed position to the open position, the second end of the double-ended needle is released from the retaining mechanism. In further embodiments of the present disclosure, the alternating mechanism is configured to alternate between the release position and the retaining position once when the suturing device moves from the open position to the closed position or from the closed position to the open position. The suturing device may thereby be configured such that a full cycle of the needle movement mechanism is completed following two movements of the suturing device from the open position to the closed position and / or two movements of the suturing device from the closed position to the open position. In embodiments of the present disclosure, the alternating mechanism is an active mechanism and the retaining mechanism is a passive mechanism. As used herein, an active mechanism refers to a mechanism that includes means for changing its function, such as changing its ability to retain a double-ended needle. For example, an active mechanism may include parts that move to change its function. The alternating mechanism is preferably an active mechanism, including a clamping unit and an actuating unit that change the function of the alternating mechanism, i.e., its ability to retain a double-ended needle, when they move relative to each other during a cycle of the needle movement mechanism, such as when the alternating mechanism alternates between a release position and a retention position. Preferably, the alternating mechanism includes several moving parts that, when moved, alternately switch the alternating mechanism from a retention position to a release position. Conversely, a passive mechanism, as used herein, refers to a mechanism that does not include parts that move to change its function. The retention mechanism is preferably, for example, a passive mechanism. As such, the retention force of the retention mechanism can be constant throughout the entire cycle of the needle movement process of the suturing device. It should be noted that while the retention mechanism is a passive mechanism, it may include parts that move, displace, and / or deform when it receives a double-ended needle. For example, when the suturing device moves to the closed position, the double-ended needle may engage with the retention mechanism to cause movement, displacement, and / or deformation of at least a portion of the retention mechanism. However, this is not typically considered a change in the function of the retention mechanism, but may instead be part of a constant process of interaction or engagement between the retention mechanism and the double-ended needle.

[0015] In an embodiment of the present disclosure, the suturing device is configured to move the double-ended needle between the first jaw element and the second jaw element each time the jaw elements move, such as from an open position of the suturing device to a closed position of the suturing device. Typically, in the closed position, the double-ended needle is in direct contact with both the alternating mechanism and the retaining mechanism. Thus, movement of the double-ended needle may refer to which of the two jaw elements, or portions thereof, such as the alternating mechanism and the retaining mechanism, exerts the highest retention force on the double-ended needle. While both the alternating mechanism and the retaining mechanism may be in direct contact with the double-ended needle, one of the mechanisms may have a higher retention force on the needle. The mechanism of the alternating mechanism and the retaining mechanism that has a higher retention force on the double-ended needle may be referred to as the mechanism holding the needle or as retaining the double-ended needle. Thus, movement of the double-ended needle may occur or may occur while both the alternating mechanism and the retaining mechanism are in direct contact with and / or are directly contacted by the double-ended needle. In an embodiment of the present disclosure, the suturing device is configured so that the double-ended needle is alternately contacted by the alternating mechanism and then by the retaining mechanism each time the jaw elements move from a closed position, for example, to an open position.

[0016] Retention power In an embodiment of the present disclosure, the alternating mechanism is configured to retain the double-ended needle with a third retention force in the released position, the third retention force being weaker than the second retention force. In an embodiment of the present disclosure, the first retention force is stronger than the second retention force, and the second retention force is stronger than the third retention force. Thus, the alternating mechanism preferably alternately retains the double-ended needle with a retention force stronger than that of the retention mechanism when in the retaining position and with a retention force weaker than that of the retention mechanism when in the released position. The retention mechanism is preferably configured to exert a constant retention force throughout the entire cycle of movement of the double-ended needle of the suturing device. Obviously, while neither the alternating mechanism nor the retaining mechanism is in continuous direct contact with the double-ended needle, the mechanism may be described herein as being configured to exert a particular force on the double-ended needle and / or as having a particular retention force and / or as being configured to retain the double-ended needle with a particular retention force, and these expressions may be considered equivalent and may refer to the mentioned mechanism being configured to retain the double-ended needle with the mentioned retention force. Thus, an alternating mechanism or a retaining mechanism may have a particular retention force (i.e., be configured to retain a double-ended needle) even though the double-ended needle is not present in said mechanism.

[0017] In an embodiment of the present disclosure, the third retention force is substantially zero. Thus, the magnitude of the third retention force may be zero. For example, the alternating mechanism may be configured to avoid direct contact with the double-ended needle in the release position, for example, by opening the clamping element. This allows the double-ended needle to be fully released, and at the same time, if engaged with the retention mechanism, the double-ended needle may move into the retention mechanism during movement to the release position.

[0018] In further embodiments of the present disclosure, the first retention force, the second retention force, and / or the third retention force are defined as the force required to displace the double-ended needle from the alternating mechanism and the retaining mechanism, respectively, such as the magnitude of the force parallel to the axial length of the double-ended needle. The retaining force can be the force required to withdraw the double-ended needle from the retaining mechanism and the alternating mechanism.

[0019] In embodiments of the present disclosure, the first retention force is defined as a force parallel to the axial length of the double-ended needle and a magnitude of force required to remove the double-ended needle from a first jaw element, etc., in a retained position, etc., of the alternating mechanism and withdraw it from the alternating mechanism. In embodiments of the present disclosure, the second retention force is defined as a force parallel to the axial length of the double-ended needle and a magnitude of force required to remove the double-ended needle from a second jaw element, etc., and withdraw it from the retaining mechanism. In embodiments of the present disclosure, the third retention force is defined as a force parallel to the axial length of the double-ended needle and a magnitude of force required to remove the double-ended needle from a first jaw element, etc., in a released position, etc., of the alternating mechanism and withdraw it from the alternating mechanism.

[0020] Double-ended needle / surface features In an embodiment of the present disclosure, the double-ended needle comprises at least one surface feature, such as a recess and / or protrusion, for engaging with the alternating feature and / or the retaining feature. In another embodiment of the present disclosure, the double-ended needle comprises a first surface feature, such as a recess and / or protrusion, for engaging with the alternating feature and a second surface feature for engaging with the retaining feature. In a specific embodiment of the present disclosure, the first end of the double-ended needle comprises the first surface feature and the second end of the double-ended needle comprises the second surface feature. The first end of the double-ended needle may be defined as the portion of the double-ended needle facing or toward the alternating feature between the suture hole and the tip of the needle. The second end of the double-ended needle may be defined as the portion of the double-ended needle facing or toward the retaining feature between the suture hole and the tip of the needle.

[0021] In an embodiment of the present disclosure, each of the one or more surface features is located at a different position along the axial length of the double-ended needle and extends around at least a portion of the double-ended needle at this position. Preferably, the one or more surface features, such as the first surface feature, the second surface feature, and any additional surface features, are located at different positions along the axial length of the double-ended needle. It is even more preferred that the surface feature extends at least partially around the double-ended needle, such as wrapping at least partially around the double-ended needle. In an embodiment of the present disclosure, the one or more surface features have an annular shape, such as in a plane perpendicular to the axial length of the double-ended needle. In a preferred embodiment of the present disclosure, the needle has a circular cross-section, and one or more surfaces are provided in an annular shape at a position along the axial length of the double-ended needle. For example, the surface feature may typically be a depression that wraps around at least a portion of the double-ended needle at a position along the axial length of the double-ended needle, or the surface feature may be a protrusion that wraps around at least a portion of the double-ended needle. Preferably, the first surface feature is located at a first end of the double-ended needle, and the second surface feature is located at a second end of the double-ended needle.

[0022] In an embodiment of the present disclosure, the alternating mechanism is configured to engage with the first surface feature in the retaining position to retain the double-ended needle. The alternating mechanism is typically configured to directly contact the first surface feature in the retaining position. In an embodiment of the present disclosure, the alternating mechanism is configured to engage with the first surface feature in the release position, such as to release the double-ended needle. In an embodiment of the present disclosure, the alternating mechanism is configured to directly contact the first surface feature in the release position. However, the alternating mechanism is preferably configured to release the double-ended needle in the release position. In an embodiment of the present disclosure, the alternating mechanism is configured to release the double-ended needle so that it can be moved to the retaining mechanism when the alternating mechanism is in the release position.

[0023] In further embodiments of the present disclosure, the retention feature is configured to engage the second surface feature to retain the double-ended needle. In further embodiments of the present disclosure, the retention feature is configured to directly contact the second surface feature, such as to retain the double-ended needle. As disclosed elsewhere herein, the retention feature is preferably configured to retain the double-ended needle with a weaker retention force than the retention force with which the alternating mechanism is configured to retain the double-ended needle in its retention position.

[0024] In certain embodiments of the present disclosure, the first surface feature and / or the second surface feature have a radius in a plane parallel to the axial length of the double-ended needle. The radius can be constant around at least a portion of the double-ended needle at a particular location along the axial length of the double-ended needle. In certain embodiments of the present disclosure, a configuration of the first surface feature, in conjunction with an alternating feature configuration such as a clamping element, can provide a first retention force and a third retention force. Thus, a configuration of the first surface feature in the retaining position, in conjunction with the alternating feature configuration, can provide a first retention force. A configuration of the first surface feature in the released position, in conjunction with the alternating feature configuration, can provide a third retention force. In certain embodiments of the present disclosure, a configuration of the second surface feature, in conjunction with a retention feature configuration such as a second complementary surface, can provide a second retention force.

[0025] Retention mechanism In an embodiment of the present disclosure, the retention mechanism comprises or consists of a snap-fit ​​mechanism. A snap fit is typically an assembly method used to attach parts, at least one of which is flexible, usually plastic, to form a final product by forcing the parts' interlocking components together. There are three main types of snap fits: annular, cantilever, and torsional. Most snap fit joints share a common design of a protruding edge and a snap-in area. The specific name of a snap fit is usually named after the type of stress or strain it utilizes. A torsional snap fit uses torque to hold parts in place.

[0026] Annular snap fits use hoop strain to hold them in place. Hoop strain refers to the circumferential expansion of a more elastic portion when compressed against a more rigid portion. They are most often circular in design. Common examples include pen caps, ball-and-socket joints, snap fasteners, and some water bottle caps. This type of snap fit can be used multiple times. However, frequent use can cause permanent strain and loosen the joint. Cantilever snap fits are the most commonly used of the three. Cantilever designs can be used multiple times or permanently. Multi-use snap fits typically have a lever or pin that must be pressed to undo the snap fit. Similar to cantilever snap fits, torsion snap fits require the protruding edge of part B to bend or move away from the insertion area. Piece A is then slid between the protruding edges until the desired distance is reached. The edge of piece B is then released, holding piece A in place. The snap fit in this description is the protruding edge of piece B. These types of snap fits may have a spring in place that, when actuated, releases the locked pieces and allows them to operate.

[0027] In embodiments of the present disclosure, the retention feature comprises a second complementary surface configured to engage with at least a portion of the second surface feature. In embodiments of the present disclosure, at least one of the second surface feature and the second complementary surface includes or consists of a protrusion and / or an indentation. In embodiments of the present disclosure, both the second surface feature and the second complementary surface include or consist of a protrusion and / or an indentation. In certain embodiments of the present disclosure, one of the second surface feature and the second complementary surface is a protrusion and the other is an indentation. In embodiments of the present disclosure, the second complementary surface is configured to releasably engage or attach to the second surface feature when the jaw elements are in the closed position. In certain embodiments of the present disclosure, the second surface feature and the second complementary surface are configured to engage according to a snap-fit ​​mechanism. Thus, the second complementary surface may be configured to include or consist of a protrusion configured to bend by the retention feature to engage with the second surface feature upon receiving the second end of the double-ended needle. The retention mechanism can be configured to hold the double-ended needle with a second retention force when the second complementary surface engages with the second surface feature, such as by being bent to mate with the second surface feature.

[0028] alternating mechanism The alternating mechanism can be implemented in several ways. The alternating switching preferably involves closing two jaw elements pivotable relative to one another about a common pivot joint. When the jaw elements are pressed together and the double-ended needle contacts both jaw elements, this action preferably triggers a mechanical and automatic switching of the first jaw element between a retaining position and a releasing position. The retention mechanism is configured to retain the second end of the double-ended needle with a second retention force that is weaker than the first retention force of the first jaw element, so that the double-ended needle moves back and forth between the two jaws by repeatedly closing and opening the two jaws.

[0029] In one embodiment, the alternating mechanism is based on a rotatable clamp opening control element. Preferably, the clamp opening control element is rotatable around a vertical axis, i.e., an axis oriented in the same direction as the double-ended needle. An example of such a clamp opening control element (23) is shown in FIG. 4A. The clamp opening control element (23) generally has a substantially cylindrical shape. The clamp opening control element (23) may have a hollow interior in which the clamping unit (18) is disposed. The clamp opening control element (23) may have a cam guide (24) inside the clamp opening control element (23). As the clamp opening control element (23) rotates, which occurs when the clamp opening control element (23) moves upward or downward, the cam follower (25) of the clamping unit (18) changes its circumferential position according to the shape of the cam guide (24).

[0030] An example is shown in Figures 4A-4B. In Figure 4A, the clamp unit (18) is open. In Figure 4B, the jaw elements are pressed together. This has the effect of rotating the clamp open control element (23) when a needle is received by the clamp unit (18) and pushes it upward. In its new position, the cam follower (25) is positioned within the cam guide (24) so ​​that the hook element (30) holds the needle.

[0031] As shown in Figure 4C, when the jaw elements are separated, the needle remains in the first jaw element, which can be said to be in a retaining position. Inside the clamp open control element (23), the cam guide (24), which may generally have a substantially helical shape, can be designed to include at least one blocking element, for example in the form of a protrusion, on the cam guide (24) to prevent the clamp unit (18) from returning to the position of Figure 4A.

[0032] In Figure 4D, the jaw elements are again forced together. This has the effect of rotating the clamp open control element (23) when the needle is received by the clamp unit (18) and pushes it upward. In this new position, the cam follower (25) is positioned within the cam guide (24) so ​​that, after rotation, the hook element (30) releases the needle.

[0033] Embodiments may be implemented with design adjustments and variations applied to optimize operation.

[0034] In further embodiments, the alternating mechanism comprises a clamping element configured to engage and / or directly contact the double-ended needle in a retaining position of the alternating mechanism. The clamping element may be configured to engage and / or directly contact a first surface feature of the double-ended needle. The clamping element may include or consist of a first complementary surface configured to engage with the first surface feature of the double-ended needle. In embodiments of the present disclosure, the clamping element is configured to contact the first surface feature of the double-ended needle in a retaining position of the alternating mechanism.

[0035] In an embodiment of the present disclosure, the alternating mechanism comprises an actuation unit configured to translate substantially along the axial direction of the double-ended needle, and the alternating mechanism is configured to alternate between a release position and a retention position as the actuation unit moves alternately between an upper position and a lower position.

[0036] In an embodiment of the disclosure, the clamping element is provided at an end of the clamping unit, and the actuation unit is configured to engage the clamping unit in a retaining position and / or a release position of the alternating mechanism. In an embodiment of the disclosure, the clamping element is adapted to alternate between a configuration that releases a double-ended needle and a configuration that retains a double-ended needle, depending on the relative positions of the clamping unit and the actuation unit. In an embodiment of the disclosure, in the retaining position and / or the release position, the actuation unit at least partially envelops the clamping unit, or the clamping unit at least partially envelops the actuation unit.

[0037] In an embodiment of the present disclosure, the double sided needle automatically moves between the first jaw element and the second jaw element when the suturing apparatus is closed and opened. In another embodiment of the present disclosure, the double sided needle automatically moves between the first jaw element and the second jaw element when the suturing apparatus is opened and closed. Preferably, the double sided needle moves between the first jaw element and the second jaw element when the suturing apparatus is closed and opened.

[0038] In certain embodiments of the present disclosure, the alternating mechanism includes an actuation unit and a clamping unit that are moved relative to one another, such as during a cycle of moving a double-ended needle between a first jaw element and a second jaw element of a suturing device. The actuation unit may include an actuation mechanism that engages with the clamping unit. The clamping unit may include a clamping element configured to retain the double-ended needle when the alternating mechanism is in a retaining position. In embodiments of the present disclosure, the clamping element engages with a first surface feature located on a first end of the double-ended needle. Preferably, movement of the actuation unit relative to the clamping unit results in actuation of the clamping unit. In embodiments of the present disclosure, the actuation unit includes an actuation mechanism that engages with the clamping unit and activates or deactivates a clamping element of the clamping unit. Here, actuation refers to changing the clamping element to be configured to retain the double-ended needle, and deactivation refers to changing the clamping element to be configured to release the double-ended needle. Preferably, this actuation and this deactivation are a result of movement of the clamping unit relative to the actuation unit. Activating the clamping element may move the alternating mechanism to a retaining position, and deactivating the clamping element may move the alternating mechanism to a released position.

[0039] As described above, the clamping unit can be activated and / or deactivated by moving the actuation unit relative to the clamping unit. This can be achieved, at least in part, by providing an alternating mechanism having an assembly similar or identical to a retractable pen. Specifically, U.S. Pat. No. 3,205,863 discloses a retractable pen assembly that extends or retracts a ballpoint pen from a housing with each click of the pen. In certain embodiments of the present disclosure, the alternating mechanism includes a cam body, a plunger, and a stop member. Preferably, the cam body is fixed to the upper end of the clamping unit or the actuation unit. In another embodiment of the present disclosure, the cam body is connected, such as directly connected, to the actuation unit and / or the clamping unit. The alternating mechanism can be configured such that the actuation unit moves relative to the clamping unit each time the suturing device is moved to the closed position, e.g., such that the actuation unit can alternate between an upper position and a lower position. The clamping unit can be configured such that deformation, separation, and / or movement of a clamping element actuator disposed at a first end of the clamping unit results in activation and / or deactivation of the clamping element, similar to, for example, a clothespin. The illustrated actuation unit may include an actuation surface configured to engage a clamp element applyer disposed at a first end of the clamp unit. The actuation surface may be tapered, and the actuation unit further includes a wedge element positioned between the clamp applyer units such that movement of the actuation unit relative to the clamp unit either separates the clamp applyer units or brings the clamp applyer units together. Due to the configuration of the clamp unit, the distance between the clamp applyer units may affect the state of the clamp elements located on opposite sides of the clamp unit. Separating the clamp applyer units may activate the clamp elements, and bringing the clamp applyer units together may deactivate the clamp elements. When the clamp elements are activated and engage the first surface feature of the double-ended needle, the alternating mechanism may be in a retaining position and configured to retain the first end of the double-ended needle with a first retention force. When the clamp elements are not activated, the alternating mechanism may be in a release position configured to release the needle.

[0040] Rotatable wheels In another embodiment of the present disclosure, the suturing device includes a rotatable wheel connected to an alternating mechanism. The rotatable wheel may be located at a pivot joint or may be separate from the pivot joint. In embodiments of the present disclosure, the position of the alternating mechanism, e.g., the release position and the retaining position, is independent of the rotation of the rotatable wheel. In fact, the rotatable wheel may be separate from the alternating mechanism and / or may not be directly connected to the alternating mechanism. Instead, the alternating mechanism may alternate between the release position and the retaining position upon opening and / or closing the suturing device, and the alternating switching of the alternating mechanism may be the result of other mechanisms disclosed elsewhere herein. It is highly desirable for the retention force of the retention mechanism to be constant, so that the retention force of the retention mechanism is not affected by, for example, the rotation of the rotatable wheel. The retention mechanism may not even be directly connected to such a rotatable wheel.

[0041] Thus, in an embodiment of the present disclosure, the suturing device does not include a rotatable wheel. In another embodiment of the present disclosure, the suturing device includes a rotatable wheel connected to an alternating mechanism, and the suturing device is configured such that opening and / or closing the suturing device rotates the rotatable wheel. In such a case, the rotating wheel may be connected to the alternating mechanism, and rotation of the rotating wheel may be configured to alternately switch the alternating mechanism between a release position and a retention position.

[0042] In embodiments of the present disclosure, when the first jaw element and the second jaw element move from the open position to the closed position relative to one another, a force is transmitted from the first jaw element or the second jaw element to the rotatable wheel, thereby rotating the rotatable wheel. In certain embodiments of the present disclosure, the rotatable wheel is positioned such that rotation of the rotatable wheel switches the alternating mechanism between the open and closed positions.

[0043] Jaw element In an embodiment of the present disclosure, a proximate end of the first jaw element is physically connected to a proximal end of the second jaw element. The jaw elements may together form a jaw. In an embodiment of the present disclosure, the alternating mechanism and the retaining mechanism are disposed at distal ends of the jaw elements. Preferably, the alternating mechanism is located at the distal end of the first jaw element and the retaining mechanism is located at the distal end of the second jaw element. In a specific embodiment of the present disclosure, the jaw elements are pivotable relative to one another about a common pivot joint. In an embodiment of the present disclosure, a rotatable wheel is disposed at the pivot joint. In a further embodiment of the present disclosure, the suturing device includes a jaw opening spring disposed between the first jaw element and the second jaw element.

[0044] Opening Control Element In one embodiment, the suturing device of the present disclosure includes a jaw opening control element that allows a user to manually control the rotatable wheel. There may be two jaw opening control elements, one for each rotatable wheel, to allow for independent wheel control. The jaw opening control element may be implemented, for example, as an extension of the rotatable wheel. This allows the rotatable wheel to have a first mechanical portion that is typically not directly exposed to the user. This portion may include an inner portion and an outer portion of the rotatable wheel. These mechanical parts are typically located on the underside of the suturing device casing. The jaw opening control element may be an exposed portion of the rotatable wheel, preferably including a grip or handle. In this case, a user can manually control needle locking and release by applying force to the jaw opening control element. In an embodiment of the present disclosure, the suturing device includes a clamp opening control element for manually controlling the position of the alternating mechanism, such as the retaining position and the releasing position. In another embodiment of the present disclosure, the suturing device is configured such that actuation of the clamp opening control element moves the alternating mechanism to the releasing position.

[0045] In embodiments of the present disclosure, the needle movement mechanism is automatic or semi-automatic and preferably can be used with one hand. The movement of the needle between the jaws can preferably be automatic in the sense that the jaw opening and closing mechanism also controls the movement of the needle, or that the jaw opening and closing mechanism is mechanically synchronized with the movement of the needle, without the need for an additional switch to control the movement of the needle. In preferred embodiments of the present disclosure, the suturing device is disposable. This can be made possible, at least in part, by the fact that the device can be robust, efficient, and relatively simple in its construction.

[0046] Detailed Description of the Drawings The present invention will now be described in more detail with reference to the accompanying drawings, which are illustrative and intended to illustrate some of the features of the presently disclosed suturing device and should not be construed as limiting the invention of the present disclosure.

[0047] FIG. 1 illustrates one embodiment of the presently disclosed suturing device (1) incorporating a needle movement mechanism for a double-ended needle (2) that is moved from a first jaw element (3) to a second jaw element (4). The first jaw element (3) and the second jaw element (4) are pivotable relative to one another about a common pivot joint (5). A jaw-opening spring (6) is disposed between the proximal end of the first jaw element (7) and the proximal end of the second jaw element (9) to return the jaws to an open position after a user presses the jaw elements (3, 4) together to move the double-ended needle (2). The first jaw element (3) has an alternating mechanism (11) located at its distal end. The second jaw element (4) has a retaining mechanism (12) located at the distal end of the second jaw element (10). The suturing device in FIG. 1A is shown in a closed position, with the distal ends of the jaw elements close together. In this position, the double-ended needle contacts both the alternating mechanism and the retaining mechanism. The suturing device in Figure 1B is shown in an open position with the distal ends of the jaw elements spaced apart. In this position, the double-ended needle contacts only one of the alternating mechanism and the retaining mechanism.

[0048] FIG. 2 illustrates an alternating mechanism and a retaining mechanism according to a specific embodiment of the present disclosure. In this embodiment, the retaining mechanism (12) includes a second complementary surface (21) configured to engage a double-ended needle. Specifically, the second complementary surface is configured to engage a second surface feature (20) located on the second end of the double-ended needle. The alternating mechanism (11), in this specific exemplary embodiment, includes an actuation unit (17) and a clamping unit (18) that move relative to one another. The actuation unit includes an actuation mechanism that engages the clamping unit (18). The clamping unit includes a clamping element (15) configured to retain the double-ended needle when the alternating mechanism is in the retaining position. The clamping element engages a first surface feature (28) located on the first end of the double-ended needle (2). Movement of the actuation unit relative to the clamping unit results in actuation of the clamping unit. The actuation unit includes an actuation mechanism that engages with the clamp unit and activates or deactivates the clamp element (15) of the clamp unit (18) when the clamp unit and the actuation unit move relative to each other. Activation of the clamp element should be understood as shifting the alternating mechanism (11) to a retaining position, where the alternating mechanism is configured to retain the first end of the double-ended needle with a first retaining force. Deactivation of the clamp element should be understood as shifting the alternating mechanism (11) to a release position, where the alternating mechanism is configured to release the double-ended needle. In this example, the clamp element includes two jaws that engage with a first surface feature (28) of the double-ended needle when the alternating mechanism (11) is in the retaining position. When the alternating mechanism is in the release position, the two jaws of the clamp element open, thereby releasing the double-ended needle. Movement of the actuation unit (17) relative to the clamp unit (18) activates and deactivates the clamp unit. This can be achieved, at least in part, by providing an alternating mechanism with a similar or identical assembly in a retractable pen. Specifically, US 3,205,863 discloses a retractable pen assembly that uses a cam body, a plunger, and a stop member to extend and retract a ballpoint pen from a housing with each click of the pen. The alternating mechanism of the present disclosure comprises a similar mechanism (not shown), where the cam body may be connected, such as directly connected, to an actuation unit.The actuation mechanism alternates between an upper position and a lower position each time the suturing device moves to the closed position. The clamping unit may be configured much like a clothespin, such that deformation, separation, and / or movement of a clamp element actuator (29) located at a first end of the clamping unit (14) activates and / or deactivates the clamping elements (15). The exemplary actuation unit includes an actuation surface (13) that engages the clamp element actuator (29) located at the first end of the clamping unit (14). The actuation surface is tapered, and the actuation unit further includes a wedge element (19) located between the clamping actuation units (29) such that movement of the actuation unit (17) relative to the clamping unit (18) either separates the clamping actuation units (29) or brings the clamping actuation units (29) together. Due to the configuration of the clamping unit (18), the distance between the clamping actuation units (29) affects the state of the clamping elements located on opposite sides of the clamping unit (18). Separating the clamping applicator units (29) activates the clamping element (15), and bringing the clamping applicator units (29) together deactivates the clamping element (15). When the clamping element is activated and engages the first surface feature (28) of the double-ended needle (2), the alternating mechanism (11) is in a retaining position and is configured to retain the first end of the double-ended needle with a first retention force. When the clamping element is not activated, the alternating mechanism (11) is in a release position configured to release the needle. In the release position, the alternating mechanism may not be in contact with the double-ended needle, or the alternating mechanism may be in contact with the double-ended needle and configured to retain the needle with a third retention force, the first retention force being greater than a second retention force that is greater than the third retention force. The second complementary surface (21) of the retention mechanism (12) may thereby be configured, together with the second surface feature (20) of the double-ended needle, to retain and release the second end of the double-ended needle with a second retention force that is lower than the first retention force. The retention mechanism and second surface feature may be configured, for example, according to a snap-fit ​​assembly, such that when the second surface feature (20) of the double-ended needle engages the second complementary surface (21) of the retention mechanism (12), the double-ended needle snaps into place.2A-2F illustrate a cycle of needle movement between the first and second jaw elements, beginning with movement of the suturing device to the closed position shown in FIG. 2A. This leads to the alternating mechanism (11) alternating from the open position shown in FIG. 2A to the retained position shown in FIG. 2B. Here, the jaw elements are slightly separated, and during this separation, the actuation unit moves relative to the clamp unit. This activates the clamp element (15) of the clamp unit (18), which engages the first surface feature (28) and retains the double-ended needle (2) with a first retention force, as described above. Because the first retention force is greater than the strength at which the double-ended needle (2) is retained by the retaining mechanism (12) when the suturing device is opened, i.e., the second retention force, in FIG. 2C, the double-ended needle is retained by the alternating mechanism. The suturing device is configured for single-handed use, and the jaw elements are moved relative to each other between the open and closed positions. Returning to the closed state of FIG. 2D, the retention mechanism engages the double-ended needle, typically by engaging the second surface feature. This deactivates the clamping element (15), such that the jaw elements are further closed together. Moving the actuation unit (17) relative to the clamping unit (18) disengages the wedge element from the first end of the clamping unit (14) and engages the actuation surface (13) with the actuation unit (17). This deactivates the clamping element, thereby causing the alternating mechanism (11) to switch to a release position configured to release the needle (FIG. 2E). When the alternating mechanism is in the release position, the clamping element may be separated from the double-ended needle, or the clamping element may be in contact with the double-ended needle but weakly retain the double-ended needle, for example, with a third retention force less than the second retention force. This allows the double-ended needle to be retained by the retention mechanism when the suturing device is reopened (FIG. 2F). The process can then be repeated such that the double-ended needle is moved between the two jaw elements each time the suturing device is closed. Typically, the suture is connected to the double-ended needle through an opening (16) in the center of the double-ended needle.

[0049] FIG. 3 illustrates an alternating mechanism and a retaining mechanism according to one embodiment of the present disclosure, configured to move a double-ended needle (2) between a first jaw element including an alternating mechanism (11) and a second jaw element including a retaining mechanism (12). The alternating mechanism includes an actuation unit configured to change the state of the clamping elements by moving relative to a clamping unit (18). When the actuation unit (17) moves relative to the clamping unit (18), the alternating mechanism (11) switches to a retaining position such that the clamping elements are configured to retain the double-ended needle. Typically, this can be achieved by reducing the distance between the clamping elements (15) of the clamping unit (18) and / or by reducing the ability of the clamping elements to bend. The clamping unit is connected to a cam guide (24) of a clamp opening control element (23) via a cam follower (25). The cam follower (25), and therefore the clamp unit (18), follows the trajectory of the cam guide (24) so ​​that the clamp unit is moved relative to the actuation unit and / or the clamp release control element (23). The alternating mechanism further includes a first spring (26) for applying a force that axially separates the clamp unit and the actuation unit, and a second spring (27) for axially separating the clamp release control element (23) from the clamp unit and the actuation unit. The clamp release control element (23) further includes a hook element (30) for maintaining the clamp release control element (23) in a lower position toward the clamp unit (18) and the actuation unit (17). During the operating cycle of the suturing device, the double-ended needle (2) may initially contact the holding unit (12) (FIG. 3A). After the two jaw elements are brought together, the first end of the double-ended needle (2) engages the alternating mechanism (11) and forces the clamp unit (18) upward toward the clamp release control element (23). This causes the clamping element (15) of the clamping unit to engage the first surface feature (28) and apply a first retaining force to the double-ended needle (2) (Figure 3B). When the jaw elements open, the double-ended needle is retained by the alternating mechanism as it holds the needle with a first retaining force that is greater than the second retaining force applied to the needle by the retaining mechanism (12) (Figure 3C).When the jaw elements are closed again (FIG. 3D), the double-ended needle engages the retention mechanism, again forcing the clamp unit and actuation unit toward the clamp open control element (23). The lower end of the clamp open control element (23) is configured to engage the upper end of the clamp unit (18), which has a tapered shape. This, along with the force of the first spring (26), causes the clamp unit (15) to move relative to the actuation unit so that the clamp element (15) disengages the double-ended needle. This places the alternating mechanism in a release mode. When the clamp unit moves to its lower position, the cam follower moves past and interacts with the hook element (30), releasing it and allowing the clamp open control element (23) to return to its upper position. When the suturing device is opened, the double-ended needle (2) is retained by the retention mechanism (12). This process may be repeated, whereby the double-ended needle moves between the jaw elements of the suturing device each time the jaw elements move from the open position to the closed position.

[0050] List of elements in the diagram 1. Suturing device 2. Double-ended needle 3. First jaw element 4. Second jaw element 5. Pivot joint 6. Jaw opening spring 7. Proximal end of first jaw element 8. Distal end of first jaw element 9. Proximal end of second jaw element 10. Distal end of second jaw element 11. Alternating mechanism 12. Retention mechanism 14. First end of clamp unit 15. Clamping Elements 16. Thread hole 17. Operating unit 18. Clamp unit 19. Wedge Elements 20. Secondary Surface Features 21. Second complementary surface 23. Clamp release control element 24. Cam guide 25. Cam follower 26. First Spring 27. The Second Spring 28. Primary Surface Feature 29. Clamping element actuator 30. Hook Elements

[0051] Further details of the invention 1. A suturing device with a double-ended needle movement, a first jaw element and a second jaw element movable relative to one another between an open position and a closed position, The first jaw element moves to the closed position each time the jaw element moves to the closed position. a retention position, wherein an alternating mechanism is configured to retain a first end of the double-ended needle with a first retention force; a release position, wherein the alternating mechanism is configured to release the needle; The suturing device comprises the first jaw element and the second jaw element, wherein the second jaw element comprises a retention mechanism for retaining and releasing the second end of the double-ended needle, the retention mechanism being configured to retain the second end of the double-ended needle with a second retention force that is weaker than the first retention force.

[0052] 2. The suturing device of any one of the preceding items, wherein the suturing device is configured such that when the alternating mechanism is in the release position and the first jaw element and the second jaw element move from the closed position to the open position, the retaining mechanism retains the second end of the double-ended needle, and when the alternating mechanism is in the retaining position and the first jaw element and the second jaw element move from the closed position to the open position, the second end of the double-ended needle is released from the retaining mechanism.

[0053] 3. The suturing device of any one of the preceding items, wherein the alternating mechanism is an active mechanism and the retaining mechanism is a passive mechanism.

[0054] 4. The suturing device of any one of the preceding items, wherein the suturing device is configured to move the double-ended needle between the first jaw element and the second jaw element each time the jaw elements move to the closed position.

[0055] 5. The suturing device of any one of the preceding items, wherein the suturing device is configured such that the double-ended needle is alternately contacted by the alternating mechanism and then by the retaining mechanism each time the jaw elements move to the open position.

[0056] 6. A suturing device according to any one of the preceding items, wherein the alternating mechanism is configured to retain the double-ended needle with a third retention force in the release position that is weaker than the second retention force.

[0057] 7. The suturing device of any one of the preceding items, wherein the first retention force is stronger than the second retention force, and the second retention force is stronger than the third retention force.

[0058] 8. The suturing device of any one of the preceding items, wherein the third retention force, such as the magnitude of the third retention force, is substantially zero.

[0059] 9. The suturing device of any one of the preceding items, wherein the first retention force, the second retention force, and / or the third retention force are defined as the forces required to displace the double-ended needle from the alternating mechanism and the retaining mechanism, respectively, such as the magnitude of a force parallel to the axial length of the double-ended needle.

[0060] 10. A suturing device as described in any one of the preceding items, wherein the first retention force is a force parallel to the axial length of the double-ended needle and is defined as the magnitude of the force required to move the double-ended needle, which is in the retention position, etc. of the alternating mechanism, away from the first jaw element, etc., and withdraw it from the alternating mechanism.

[0061] 11. A suturing device as described in any one of the preceding items, wherein the second retention force is a force parallel to the axial length of the double-ended needle and is defined as the magnitude of the force required to pull the double-ended needle away from the second jaw element, etc., and out of the retention mechanism.

[0062] 12. A suturing device as described in any one of the preceding items, wherein the third retention force is a force parallel to the axial length of the double-ended needle and is defined as the magnitude of the force required to move the double-ended needle, which is in the released position, etc. of the alternating mechanism, away from the first jaw element, etc., and withdraw it from the alternating mechanism.

[0063] 13. The suturing device of any one of the preceding items, wherein the double-ended needle includes at least one surface feature, such as a depression and / or a protrusion.

[0064] 14. The suturing device of any one of the preceding items, wherein the first end of the double-ended needle comprises a first surface feature and / or the second end of the double-ended needle comprises a second surface feature.

[0065] 15. A suturing device according to any one of the preceding items, wherein the one or more surface features are disposed at different locations along the axial length of the double-ended needle and extend around at least a portion of the double-ended needle at said locations.

[0066] 16. The suturing device of any one of the preceding items, wherein the one or more surface features have an annular shape, such as parallel to the axial length of the double-ended needle.

[0067] 17. The suturing device of any one of the preceding items, wherein the alternating mechanism is configured to contact the first surface feature at the retention position to retain the double-ended needle.

[0068] 18. The suturing device of any one of the preceding items, wherein the retention mechanism is configured to contact the second surface feature to retain the double-ended needle.

[0069] 19. The suturing device of any one of the preceding items, wherein the first surface feature and / or the second surface feature have a radius in a plane parallel to the axial length of the double-ended needle.

[0070] 20. The suturing device of any one of the preceding items, wherein the retention mechanism comprises or consists of a snap-on mechanism.

[0071] 21. The suturing device of any one of the preceding items, wherein the retention mechanism comprises a second complementary surface configured to engage at least a portion of the second surface feature.

[0072] 22. The suturing device of any one of the preceding items, wherein at least one of the second surface feature and the second complementary surface includes or consists of a protrusion.

[0073] 23. The suturing device of any one of the preceding items, wherein both the second surface feature and the second complementary surface include or consist of protrusions.

[0074] 24. The suturing device of any one of the preceding items, wherein one of the second surface feature and the second complementary surface is a protrusion and the other is a depression.

[0075] 25. The suturing device of any one of the preceding items, wherein the second complementary surface is configured to releasably adhere to the second surface feature when the jaw elements are in the closed position.

[0076] 26. The suturing device of any one of the preceding items, wherein the alternating mechanism includes a clamping element for contacting the double-ended needle in the retaining position of the alternating mechanism.

[0077] 27. The suturing device of any one of the preceding items, wherein the clamping element is configured to contact the first surface feature of the double-ended needle in the retaining position of the alternating mechanism.

[0078] 28. A suturing device according to any one of the preceding items, wherein the alternating mechanism includes an actuating unit configured to translate substantially along the axial direction of the double-ended needle, and the alternating mechanism is switched between the release position and the retention position when the actuating unit moves alternately between an upper position and a lower position.

[0079] 29. A suturing device according to any one of the preceding items, wherein the clamping element is provided at an end of a clamping unit, and the actuation unit is configured to engage with the clamping unit in the retaining position and / or the release position.

[0080] 30. A suturing device according to any one of the preceding items, wherein in the retaining position and / or the releasing position, the actuating unit at least partially envelops the clamping unit, or the clamping unit at least partially envelops the actuating unit.

[0081] 31. The suturing device of any one of the preceding items, comprising a clamp opening control element rotatable about a vertical axis.

[0082] 32. The suturing device of item 31, wherein the clamp open control element has a substantially cylindrical shape.

[0083] 33. A suturing device according to any one of items 31 to 32, preferably comprising a cam guide within the hollow interior of the clamp open control element.

[0084] 34. The suturing device according to any one of items 31 to 33, wherein a corresponding cam follower of a clamping unit is disposed within the cam guide.

[0085] 35. A suturing device according to any one of items 31 to 34, wherein the device is configured such that rotation of the clamp open control element caused by a vertical force on the clamp unit causes the clamp open control element to retain the double-ended needle or release the double-ended needle.

[0086] 36. The suturing device of any one of the preceding items, wherein the alternating mechanism comprises a cam body and at least one stop member.

[0087] 37. The suturing device of any one of the preceding items, wherein the cam body is fixed to an upper end of the actuation unit.

[0088] 38. The suturing device of any one of the preceding items, wherein the suturing device comprises a rotatable wheel connected to the alternating mechanism.

[0089] 39. A suturing device according to any one of the preceding items, wherein when the first jaw element and the second jaw element move from the open position to the closed position relative to one another, a force is transmitted from the first jaw element or the second jaw element to the rotatable wheel, thereby rotating the rotatable wheel.

[0090] 40. The suturing device of any one of the preceding items, wherein the rotatable wheel is positioned such that rotation of the rotatable wheel switches the alternating mechanism between the open position and the closed position.

[0091] 41. The suturing device of any one of the preceding items, wherein a proximal end of the first jaw element is physically connected to a proximal end of the second jaw element such that the jaw elements form a jaw.

[0092] 42. The suturing device of any one of the preceding items, wherein the alternating mechanism and the retaining mechanism are located at a distal end of the jaw element.

[0093] 43. The suturing device of any preceding item, wherein the jaw elements are pivotable relative to one another about a common pivot joint.

[0094] 44. The suturing device of any one of the preceding items, wherein the rotatable wheel is located at the pivot joint.

[0095] 45. The suturing device of any preceding item, further comprising a jaw opening spring disposed between the first jaw element and the second jaw element.

[0096] 46. ​​The suturing device of any preceding item, further comprising a clamp release control element for manually controlling the position of the alternating mechanism.

[0097] 47. The suturing device of any preceding item, wherein actuation of the clamp open control element moves the alternating mechanism to the open position.

[0098] 48. The suturing device of any preceding item, wherein the needle moving mechanism is automatic.

[0099] 49. The suturing device of any preceding item, wherein the suturing device is disposable.

Claims

1. A single-handed automatic suturing device for surgical procedures with automatic needle movement of a double-ended needle, the single-handed automatic suturing device for surgical procedures comprising a first jaw element and a second jaw element movable relative to one another between an open position and a closed position, the first jaw element and the second jaw element being pivotable relative to one another about a common pivot joint; the first jaw element comprises an alternating mechanism that presses the jaw elements together when the jaw elements are moved to the closed position; a retention position, wherein the alternating mechanism is configured to retain a first end of the double-ended needle with a first retention force; a release position, wherein the alternating mechanism is configured to release the double-ended needle; It is configured to automatically alternate between a mechanism for opening and closing the first jaw element and the second jaw element controls or is mechanically synchronized with the switching between the retaining position and the release position; the second jaw element comprises a retention mechanism for retaining and releasing the second end of the double-ended needle, the retention mechanism being configured to retain the second end of the double-ended needle with a second retention force that is weaker than the first retention force; One-handed automatic suturing device for surgical procedures.

2. The one-handed automatic suturing device for surgical procedures described in claim 1 further comprises a jaw-opening spring positioned between the first jaw element and the second jaw element, the jaw-opening spring being configured to cause the jaw elements to return to an open position after a user presses the jaw elements together.

3. 3. The one-handed automatic suturing device for surgical procedures according to claim 1, wherein the movement of the double-ended needle back and forth between the first jaw element and the second jaw element is mechanically synchronized with the alternating mechanism.

4. 4. The one-handed automatic suturing device for surgical procedures according to claim 1, wherein the retaining mechanism retains the second end of the double-ended needle when the alternating mechanism is in the release position and the first jaw element and the second jaw element move from the closed position to the open position, and the second end of the double-ended needle is released from the retaining mechanism when the alternating mechanism is in the retaining position and the first jaw element and the second jaw element move from the closed position to the open position.

5. 5. The one-handed automatic suturing device for surgical procedures according to claim 1, wherein the alternating mechanism is an active mechanism having parts that move to change its function, the retaining mechanism is a passive mechanism that does not have parts that move to change its function, and the alternating mechanism is configured to retain the double-ended needle with a third retention force that is weaker than the second retention force in the released position.

6. 6. The one-handed automatic suturing device for surgical procedures according to claim 5, wherein the first retention force is defined as the force required to move the double-ended needle from the alternating mechanism in the retaining position, the third retention force is defined as the force required to move the double-ended needle from the alternating mechanism in the released position, and the second retention force is defined as the force required to move the double-ended needle from the holding mechanism.

7. a first end of the double-ended needle having a first surface feature and a second end of the double-ended needle having a second surface feature; 7. The one-handed automatic suturing device for surgical procedures according to claim 1, wherein the alternating mechanism is configured to engage with the first surface feature at the retaining position to retain the double-ended needle, and the retaining mechanism is configured to engage with the second surface feature to retain the double-ended needle.

8. 8. The one-handed automatic suturing device for surgical procedures according to claim 7, wherein the alternating mechanism comprises a clamping element configured to engage the first surface feature to retain the double-ended needle when the alternating mechanism is in the retaining position.

9. 9. The one-handed automatic suturing device for surgical procedures according to claim 7, wherein the retaining mechanism comprises a second complementary surface configured to engage a second surface feature of the double-ended needle.

10. The one-handed automatic suturing device for surgical procedures according to claim 9, wherein the retaining feature and the second complementary surface are configured to engage according to a snap-fit ​​mechanism.

11. 11. The one-handed automatic suturing device for surgical procedures according to claim 9, wherein the second complementary surface is configured to releasably adhere to the second surface feature when the jaw elements are in the closed position.

12. 12. The one-handed automatic suturing device for surgical procedures according to claim 1, further comprising a rotatable wheel disposed on the pivot joint, the rotatable wheel being connected to the alternating mechanism, the rotatable wheel being configured to rotate and cause the alternating mechanism to switch between the open position and the closed position each time the first jaw element and the second jaw element move from the open position to the closed position relative to each other.

13. 13. The one-handed automatic suturing device for surgical procedures according to any one of claims 1 to 12, further comprising a clamp open control element for moving the alternating mechanism to the open position.

14. 14. The one-handed automatic suturing device for surgical procedures according to claim 1, wherein the double-ended needle automatically moves between the first jaw element and the second jaw element when the one-handed automatic suturing device for surgical procedures is closed and opened.

15. 15. The one-handed automatic suturing device for surgical procedures according to any one of claims 1 to 14, wherein the one-handed automatic suturing device for surgical procedures is disposable.

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