Disclosure of Invention
The present invention is directed to a tissue closure device that solves the above-mentioned problems with the prior art.
In order to solve the technical problems, the invention provides a tissue closing device which comprises a closer and a guide wire needle, wherein the closer is used for leading a suture into an abdominal cavity through an operation incision and propping up the suture in the abdominal cavity, and the guide wire needle is connected with the closer in a sliding way and used for penetrating the abdominal cavity and leading the propped suture out of the abdominal cavity after clamping.
Preferably, the closer comprises a shell part, a guide needle and a connecting piece, wherein the guide needle is connected with the shell part in a sliding way, so that the guide needle can be displaced in a direction of deviating a certain angle in the axial direction of the closer, the connecting piece is connected with the shell part in a sliding way, so that the connecting piece can be displaced along the axial direction of the closer, the guide needle can be displaced in a direction of approaching or separating from the central axis of the closer, when a pushing load is applied to the connecting piece, the guide needle is driven to be displaced, and the displacement of the guide needle is decomposed into the displacement of approaching or separating from the central axis of the closer and the displacement of deviating a certain angle in the axial direction of the closer.
Preferably, a stop platform is formed in the middle of the housing member, and the displacement distance is determined when the connecting member is displaced in the axial direction of the closer until it meets the stop platform.
Preferably, an elastic buckle is arranged on one side, close to the connecting piece, of the shell piece, a clamping interface is arranged on one side, close to the shell piece, of the connecting piece, and the connecting piece is relatively fixed with the shell piece when the clamping interface is clamped with the elastic buckle along the axial displacement of the closer.
Preferably, the connecting piece further comprises a first elastic piece, the first elastic piece is abutted between the connecting piece and the stopping platform, and when the connecting piece is relatively fixed with the shell piece, the first elastic piece is subjected to compression deformation.
Preferably, the shell member comprises a first cylindrical member which is a member close to one end of the abdominal cavity when the closer is in use, and a second cylindrical member which is a member far away from one end of the abdominal cavity when the closer is in use, wherein the second cylindrical member is connected and communicated with the first cylindrical member, the stop platform is a step surface for connecting the second cylindrical member with the first cylindrical member, and the connecting member is arranged on one side of the stop platform close to the second cylindrical member.
Preferably, the first column casing part is provided with a channel, the central axis of the channel and the central axis of the closer form an included angle, the second column casing part is provided with a through hole, the through hole is coaxial with the channel, the wire needle is inserted into the second column casing part through the through hole, and meanwhile, the wire needle is inserted into the first column casing part through the channel, so that the sliding connection with the shell part is realized.
Preferably, the connecting piece is arranged in the second cylinder piece, the connecting piece comprises a sliding rail, the sliding rail extends towards the direction far away from the central line axis of the closer, a first sliding block is arranged at the middle part of the guide wire needle, and the first sliding block is arranged in the sliding rail to realize sliding connection between the connecting piece and the guide wire needle.
Preferably, the connecting piece further comprises a stand column piece, one end, far away from the stopping platform, of the stand column piece extends out of the second cylinder piece, and one end, close to the stopping platform, of the stand column piece is connected with the sliding rail.
Preferably, the second cylinder part comprises a sliding groove which extends along the central axis direction of the closer, and the connecting piece further comprises a second sliding block which is arranged in the sliding groove to realize sliding connection between the connecting piece and the shell part.
Preferably, the second cylinder member further comprises a guide post extending in the direction of the central axis of the closer, and the connector further comprises a guide hole through which the guide post passes.
Preferably, the closer further comprises an insertion column, an insertion column and a support piece, wherein the insertion column is positioned at one end of the first column barrel part far away from the second column barrel part, is fixedly connected with the first column barrel part and is used for being inserted into an abdominal cavity when a suture is guided, the support piece is arranged along the extending direction of the insertion column, one end of the support piece is fixedly connected with one end of the first column barrel part far away from the second column barrel part, is inserted into the abdominal cavity along with the insertion column when the suture is guided, a wire guide groove is arranged on the support piece and is used for hanging the suture so as to facilitate the suture to be introduced into the abdominal cavity, and a pull rod is arranged in the first column barrel part, one end of the pull rod extends to be fixedly connected with the other end of the support piece, and is folded under the action of pulling force when the pulling load is provided for the pull rod, and is in an umbrella-shaped structure and is used for supporting the suture and recovering the support piece under the action of pulling force when the pushing load is provided for the pull rod.
Preferably, the middle part of the insertion column is also provided with a thread hanging pile which is also used for hanging a suture thread, the support piece is also provided with a thread passing hole, when the support piece is in an umbrella-shaped structure, the suture thread is tensioned between the support piece and the thread hanging pile through the thread passing hole, a space for hooking the thread is reserved for the hook, and meanwhile, the thread passing hole is used for enabling the tip end of the guide needle to extend into the umbrella-shaped structure.
Preferably, the two sides of the middle part of the shell piece are also provided with a stay wire groove, and after the suture is guided by the stay wire groove and the stay wire pile in sequence, two ends of the suture are hung in the stay wire groove to prevent the two ends of the suture from being inserted into the abdominal cavity along with the closer.
The closer also comprises a button, the button is positioned outside the second cylinder part and penetrates through the notch to be connected with the other end of the pull rod in a sliding way, hanging piles are arranged at positions corresponding to the inner walls of the notch, and hanging grooves corresponding to the hanging piles are arranged at the upper end and the lower end of the inner walls of the notch.
Preferably, the button further comprises a second elastic piece, and the second elastic piece is abutted between the button and the pull rod.
Compared with the prior art, the invention has the following beneficial effects:
1. The invention discloses a tissue closing device, in particular to a minimally invasive fascia closer, which is different from a split structure of a closer and a puncture needle in the traditional fascia closer, and the closer and the puncture needle of the minimally invasive fascia closer are of an integrated structure, so that a doctor can conveniently operate the closer and the puncture needle during operation, and the minimally invasive fascia closer is convenient to use;
2. According to the tissue closing device disclosed by the invention, the connecting piece is arranged to simultaneously execute the puncturing actions on the two puncture needles, so that the defect that the puncture needles are required to be respectively inserted into the guide wire needles for two times in the traditional fascia closer, the suture line is hooked and the guide wire needle is pulled out is overcome, and the operation efficiency is obviously improved.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the process of leading out the suture in the abdominal cavity, the existing fascia closer needs to be held by one hand, the other hand is used for taking the lead to operate the lead needle, the defect of inconvenient use is caused, the lead needle is required to be operated twice in operation, two ends of the suture are respectively hooked, and the defect of low efficiency is caused by the actions of inserting the lead needle twice, hooking the suture and pulling out the lead needle is included.
Based on the above drawbacks, the present application provides an embodiment of a tissue closure device, in particular a disposable minimally invasive fascia closure.
Specifically, as shown in fig. 3, the front view of the minimally invasive fascia closer comprises a closer 1 and a guide needle 2, wherein the closer 1 is used for leading a suture line into an abdominal cavity through an operation incision, propping up the suture line in the abdominal cavity, the guide needle 2 is used for penetrating the abdominal cavity, leading out the supported suture line out of the abdominal cavity after clamping, and the two ends of the suture line can be knotted to close the fascia defect of the operation incision.
Further, in order to avoid that the needle 2 is taken by the other hand when the closer 1 is held by one hand, and to avoid that the needle 2 is repeatedly inserted, hooked with a suture and pulled out twice, the present embodiment provides that one closer 1 corresponds to two needles 2, and the two needles 2 are slidably connected with respect to the closer 1, that is, the closer 1 and the two needles 2 are designed as an integral structure, and the sliding connection mode is to match the penetrating action and the pulling action of the needle 2.
In another embodiment, a wire needle 2 corresponding to one closer 1 may be provided, the wire needle 2 is slidably connected with the closer 1, and the wire needle 2 hooks the other end after hooking one end of the suture, so that the action of taking the wire needle 2 can be reduced.
In another embodiment, a plurality of guide pins 2 corresponding to one closer 1 may be provided to assist suturing a plurality of sutures.
Furthermore, the two guide pins 2 in the embodiment need to be pierced into the abdominal cavity before the hooking operation is performed, if the two guide pins 2 are pierced separately, the efficiency will be low, and the piercing distance of the two guide pins 2 will be easily controlled, so that the piercing operation is considered to be performed on the two guide pins 2 simultaneously;
Specifically, as shown in fig. 4, which is a schematic diagram of the internal structure of the minimally invasive fascia closer, fig. 5 is an exploded view of the minimally invasive fascia closer, and as shown in fig. 4-5, the minimally invasive fascia closer 1 comprises a housing part 11, wherein the housing part 11 is used as a basic structure, no action is performed, a guide wire needle 2 is slidably connected with the housing part 11, so that the guide wire needle 2 can be displaced in a direction of deviating a certain angle alpha from a central axis L of the closer 1 (as shown in fig. 1), the penetration angle of the guide wire needle 2 is determined, and the penetration angle is the penetration angle of the guide wire needle in the traditional fascia closer, wherein the sliding connection mode can also form a guiding effect on the guide wire needle 2 to prevent the guide wire needle 2 from deviating in the penetration process;
In this way, when a pushing load is applied to the connector 3 to displace the connector 3 in a direction approaching the wound, the two lead pins 2 are driven to displace, but the lead pins 2 are limited to the direction in which the central axis L of the closer 1 deviates from the angle α, so that the displacement generated by the two lead pins 2 is decomposed into the displacement in the direction approaching the central axis L of the closer 1 and the displacement in the direction in which the central axis L of the closer 1 deviates from the angle α, and thus the two lead pins 2 can be controlled to simultaneously perform the piercing operation in the case that the displacement directions are different.
Further, when the suture is supported in the abdominal cavity by the closer 1, the penetration distance of the guide needle 2 is determined to be ready for the subsequent hooking action, based on which, as shown in fig. 4 to 5, a stop platform 111 is formed at the middle of the housing member 11, the connecting member 3 is disposed at one end of the stop platform 111 away from the wound, and when the connecting member 3 is displaced along the axial direction of the closer 1 until meeting the stop platform 111, the displacement distance of the connecting member 3 is determined, and the displacement distances of the two guide needles 2 are also determined.
Further, after the wire needle 2 is pierced, a hooking operation needs to be performed (the specific hooking structure and hooking principle of the wire needle 2 are consistent with the prior art, and are not described in detail herein), when the hooking operation is performed, the wire needle 2 needs to be fixed relative to the closer 1, if the wire needle 2 moves relative to the closer 1, the hooking operation may fail, so as to fig. 4 to 5, an elastic buckle 1131 is provided on a side, close to the connecting piece 3, of the housing piece 11, a clamping port 331 is provided on a side, close to the housing piece 11, of the connecting piece 3, and when the connecting piece 3 moves along the axial direction of the closer 1 to meet the stopping platform 111, the clamping port 331 meets and is clamped with the elastic buckle 1131, so that the connecting piece 3 and the housing piece 11 are relatively fixed, and when the wire needle 2 moves to a position, closest to the central axis L of the closer 1, no relative displacement occurs between the connecting piece 3 and the wire needle 2 is fixed.
Further, after the needle 2 pierces the abdominal cavity and performs the hooking action, the needle needs to be restored to the original position, and the end of the suture is carried out, based on this, as shown in fig. 4 to 5, the connecting piece 3 is further provided with a first elastic piece 31, the first elastic piece 31 is preferably a spring, and is abutted between the connecting piece 3 and the stopping platform 111, when the connecting piece 3 is relatively fixed with the casing 11, the first elastic piece 31 is subjected to compression deformation, and when the needle 2 needs to be restored to the original position, the elastic buckle 1131 is pressed, so that the elastic buckle 1131 is separated from the clamping interface 331, the connecting piece 3 and the casing 11 are restored to be free, the connecting piece 3 is displaced in a direction away from the wound under the rebound action of the first elastic piece 31, and the needle 2 is driven to be restored, and the suture is carried out.
Further, as shown in fig. 4 to 5, the housing member 11 specifically includes a first cylindrical member 112, where the first cylindrical member 112 is a member near one end of the abdominal cavity for guiding the insertion of the closure 1 into the abdominal cavity when the closure 1 is in use, and the housing member 11 further includes a second cylindrical member 113, where the second cylindrical member 113 is a member far from one end of the abdominal cavity when the closure 1 is in use, and the second cylindrical member 113 is connected to and in communication with the first cylindrical member 112, and in this embodiment, the first cylindrical member 112 is in a clamped relationship with the second cylindrical member 113.
Further, the stopping platform 111 is a step surface where the second cylinder member 113 engages with the first cylinder member 112, and the connecting member 3 is disposed on the stopping platform 111 on a side close to the second cylinder member 113, in this embodiment, the connecting member 3 is disposed in the second cylinder member 113.
Further, in the embodiment, as shown in fig. 4-5, the connection mode between the wire needle 2 and the housing member 11 is specifically that the first cylindrical member 112 is provided with a channel 1121, a central axis m of the channel 1121 forms an included angle α (as shown in fig. 1) with a central axis L of the closer 1, the second cylindrical member 113 is provided with a through hole 1132, the through hole 1132 is coaxial with the channel 1121, and the wire needle 2 is inserted into the second cylindrical member 113 through the through hole 1132 and simultaneously inserted into the first cylindrical member 112 through the channel 1121, so as to realize sliding connection with the housing member 11.
Further, in the embodiment, as shown in fig. 4-5, the connection mode of the wire needle 2 and the connection piece 3 is specifically that the connection piece 3 is disposed in the second cylinder 113, the connection piece 3 includes two sliding rails 32, the two sliding rails 32 are disposed above the stop platform 111 and extend in a direction away from the central line axis of the closer 1, the middle part of the wire needle 2 is provided with a first sliding block 21, and the first sliding block 21 is disposed in the sliding rail 32 to realize sliding connection between the connection piece 3 and the wire needle 2.
Further, in this embodiment, as shown in fig. 4 to 5, the connecting piece 3 further includes a stand column member 33, and one end of the stand column member 33 away from the stopping platform 111 extends out of the second cylinder member 113, so as to facilitate application of a thrust load to the connecting piece 3 out of the second cylinder member 113, and two sides of one end of the stopping platform 111 of the stand column member 33 are respectively connected with two slide rails 32, so that the connecting piece 3 is in an inverted T-shaped structure, so as to facilitate transmission of displacement to the slide rails 32.
Further, in the embodiment, as shown in fig. 4-5, the connection mode between the connecting piece 3 and the housing piece 11 is specifically that the second cylinder piece 113 comprises a chute 1133, the chute 1133 extends along the central axis direction of the closer 1, the connecting piece 3 further comprises a second sliding block 321, and the second sliding block 321 is arranged in the chute 1133 to realize the sliding connection between the connecting piece 3 and the housing piece 11;
Specifically, as shown in fig. 4 to 5, the second sliding blocks 321 are integrally disposed on the sliding rails 32, one side of each sliding rail 32 close to the inner wall of the second cylindrical member 113 is provided with the second sliding block 321, and the sliding grooves 1133 are disposed on the inner wall of the second cylindrical member 113, where the sliding grooves 1133 correspond to the second sliding blocks 321 one by one, so that the connecting member 3 can be displaced stably.
Further, in order to further prevent the connector 3 from being skewed during displacement, as shown in fig. 4 to 5, the second cylinder member 113 further includes a guiding post 1134, the guiding post 1134 is disposed inside the second cylinder member 113 and extends along the central axis direction of the closer 1, the upper end of the guiding post 1134 is connected to the top of the second cylinder member 113, the lower end of the guiding post is connected to the stop platform 111, the connector 3 further includes a guiding hole 322, the guiding post 1134 penetrates through the guiding hole 322, in this embodiment, the guiding hole 322 is integrally disposed on the sliding rail 32, and when the connector 3 is relatively displaced, the guiding post 1134 guides and limits the displacement of the connector 3.
Further, as shown in fig. 4 to 5, in order to ensure that the elastic deformation force of the first elastic member 31 is released along the axial direction of the closer 1, and in order to avoid the first elastic member 31 from being separated, the first elastic member 31 is sleeved on the guiding post 1134 and abuts between the guiding hole 322 and the stopping platform 111.
Further, as shown in fig. 4-5, the closer 1 further comprises an insertion column 12, the insertion column 12 is located at one end of the first column 112 far from the second column 113 and fixedly connected with the first column 112, and is used for being inserted into the abdominal cavity when guiding the suture, the closer 1 further comprises a support member 13, one end of the support member 13 is fixedly connected with one end of the first column 112 far from the second column 113 along the extending direction of the insertion column 12, the insertion column 12 is inserted into the abdominal cavity when guiding the suture, a wire guiding groove 131 is arranged on the support member 13 and is used for hanging the suture, so that the suture is conveniently led into the abdominal cavity, wherein the specific structure of the support member 13 and the specific shape of the wire guiding groove 131 are consistent with the prior art, and the closer 1 further comprises a pull rod 14, the pull rod 14 is placed in the first column 112, one end of the pull rod 14 is fixedly connected with the other end of the support member 13, and is folded under the action of a pulling force when providing a pulling load to the pull rod 14, and is in an umbrella structure, wherein the support member 13 is in the umbrella structure, the principle of how the umbrella structure is in an umbrella structure is also in agreement with the prior art, the principle that the support member is not pushed by the pull rod 14 is used for restoring the load when the support member is provided by the pulling the pull rod.
Further, as shown in fig. 4-5, a thread hanging pile 121 is further disposed in the middle of the insertion column 12, the thread hanging pile 121 is also used for hanging a suture thread, a thread passing hole 132 is further disposed on the supporting member 13, when the supporting member 13 is in an umbrella-shaped structure, the suture thread is tensioned between the supporting member 13 and the thread hanging pile 121 through the thread passing hole 132, a space for hooking the hook is reserved for the hook, meanwhile, the thread passing hole 132 is used for extending the tip of the guide needle 2 into the umbrella-shaped structure, and the specific structures of the thread hanging pile 121 and the thread passing hole 132 are also consistent with the prior art, and are not repeated herein.
Further, as shown in fig. 4 to 5, the two sides of the middle part of the housing member 11 are further provided with a pull wire groove 15, after the suture is guided by the lead wire groove 131 and the hanging wire pile 121 in sequence, two ends of the suture are hung in the pull wire groove 15, so that the two ends of the suture are prevented from being inserted into the abdominal cavity along with the closer 1, in this embodiment, the pull wire groove 15 is a groove body which is arranged on a rubber block and is concaved towards the rubber block, wherein the rubber block is fixed on two sides of the retaining platform 111, a certain friction force is generated on the suture by utilizing the material property of the rubber block, when the middle section of the suture is sent into the abdominal cavity, the two ends of the suture continue to be hung in the pull wire groove 15 under the action of the friction force, and when the suture is clamped by the lead wire needle 2, and the end of the suture is led out of the abdominal cavity, the suture is separated from the pull wire groove 15 under the action of a larger force.
Further, in order to facilitate the operation of the pull rod 14, as shown in fig. 4-5, the other end of the pull rod 14 extends into the second cylinder member 113, a notch 1135 is formed in the second cylinder member 113, the notch 1135 extends along the axial direction of the pull rod 14, the closer 1 further comprises a button 16, the button 16 is located outside the second cylinder member 113 and passes through the notch 1135 to be slidably connected with the other end of the pull rod 14, the sliding direction is perpendicular to the axial direction of the pull rod 14, a hanging pile 161 is arranged at a position of the button 16 corresponding to the inner wall of the notch 1135, and hanging grooves 1136 corresponding to the hanging pile 161 are formed in the upper end and the lower end of the inner wall of the notch 1135;
Specifically, when the button 16 is pressed to the position where the peg 161 and the hanging groove 1136 are dislocated, the notch 1135 does not limit the button 16, and an external force is applied to the button 16 to drive the button 16 to displace along the notch 1135, thereby driving the pull rod 14 to displace, and the support 13 is controlled to prop up or put down, and when the peg 161 on the button 16 corresponds to the hanging groove 1136, the notch 1135 limits the button 16, and the button 16 is fixed relative to the second cylinder member 113.
Further, as shown in fig. 4 to 5, the button 16 further includes a second elastic member 162, and the second elastic member 162 is preferably a spring, and is abutted between the button 16 and the pull rod 14, so as to achieve resilience of the button 16, and when the hanging pile 161 corresponds to the hanging groove 1136, the second elastic member 162 drives the button 16 to rebound, so that the position of the button 16 is fixed, and the state of the pull rod 14 is fixed.
Further, in order to compact the structure of the present fascia closer, as shown in fig. 4-5, the upright member 33 is configured to be an inverted concave structure, such that the tie rod 14 can extend into the groove of the upright member 33, thereby making the present apparatus compact.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
It should be noted that the above-mentioned embodiments are merely preferred embodiments of the present invention, and the present invention is not limited thereto, but may be modified or substituted for some of the technical features thereof by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.