Extra-abdominal balloon dilatation puncture suture device

Abstract

The present invention discloses an extra-abdominal balloon dilatation puncture suture device, comprising an expansion member and a puncture suture sheath, the puncture suture sheath comprising a sheath shell, a hollow channel penetrating along the axial direction is provided inside the sheath shell, a notch is provided at the lower end of the sheath shell, a rotatable rotating member is installed in the notch, a puncture area is provided on the rotating member, a linkage assembly connected to the rotating member is provided in the sheath shell, the linkage assembly is used to control the rotation of the rotating member so that the movable end of the rotating member moves in a direction away from the central axis of the hollow channel; a puncture groove is provided on the outer surface of the sheath shell, and the puncture groove is used for the suturing needle to pass through. On the one hand, the present invention can only insert a surgical instrument once in the surgical skin incision during the entire surgical process, without the need to perform multiple insertions and extractions of the surgical instrument, thereby reducing the accidental damage to the patient caused by multiple insertions and extractions; on the other hand, it effectively reduces the production cost of the instrument, thereby reducing the patient's medical expenses.

Description

Technical Field

[0001] The invention relates to a surgical instrument, in particular to an extra-abdominal balloon dilatation puncture suturing device. Background Art

[0002] With the promotion of minimally invasive technology, laparoscopic surgery or various types of surgery under Da Vinci have gradually become the mainstream surgical procedures. However, before performing laparoscopic surgery, especially extraperitoneal or retroperitoneoscopic surgery in urology, it is necessary to expand the extraperitoneal cavity before surgery in order to obtain a larger operating space after establishing the laparoscopic channel. At the same time, after the operation, we need to suture the lumbar fascia or muscle fascia to reduce postoperative wound bleeding and the probability of incisional hernia.

[0003] Existing laparoscopic surgeries usually use dilators, puncture devices, and staplers in sequence, so that doctors need to repeatedly insert and remove different instruments during the operation. Specifically, after the doctor uses the dilator to complete the expansion of the extra-abdominal cavity, the dilator must be removed first, and then the puncture device is inserted to cooperate with the endoscope and surgical instruments for surgery. After the operation is completed, the puncture device needs to be removed again and the stapler is inserted to suture the fascia in the abdominal cavity. The entire surgical process requires the dilator, puncture device, and stapler to be inserted and removed in sequence through the surgical skin incision. This may not only cause accidental injuries to the patient, increase the risk of postoperative complications such as wound bleeding and incisional hernia, but also may require the doctor to observe and adjust the position of the instrument inserted into the human body after each insertion of a different instrument, which prolongs the operation time, which may lead to the occurrence of uncontrollable surgical risks. In addition, the existing dilators, puncture devices, and staplers are all single-purpose, which will increase the cost of medical consumables and increase the patient's medical expenses. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide an extra-abdominal balloon dilatation puncture suture device in order to overcome the above-mentioned defects in the prior art.

[0005] The present invention solves the above technical problems through the following technical solutions:

[0006] The present invention provides an extra-abdominal cavity balloon dilatation puncture suture device, and the extra-abdominal cavity balloon dilatation puncture suture device comprises:

[0007] An expansion member, the expansion member comprises an elastic balloon, a guide trachea and an inflation portion, the elastic balloon and the inflation portion are respectively arranged at two ends of the guide trachea, the inflation portion is used to inflate the elastic balloon, and the elastic balloon can expand after being inflated and recover after being deflated;

[0008] A puncture suture sheath, the puncture suture sheath comprising a sheath shell, a hollow passage penetrating along the axial direction is provided inside the sheath shell, a notch is provided at the lower end of the sheath shell, a rotatable rotating member is installed in the notch, a puncture area is provided on the rotating member, a linkage assembly connected to the rotating member is provided in the sheath shell, and the linkage assembly is used to control the rotation of the rotating member so that the movable end of the rotating member moves in a direction away from the central axis of the hollow passage;

[0009] A puncture groove is provided on the outer surface of the sheath, and the puncture groove is used for a suturing needle to pass through. When the rotating member is rotated to a preset position, the suturing needle can be inserted into and pass through the puncture area after passing through the puncture groove. The puncture area is configured to leave the suture thread on the suturing needle at the puncture area after the suturing needle passes through the puncture area.

[0010] The length of the guide airway is greater than the length of the hollow channel, the outer diameter of the guide airway is smaller than the inner diameter of the hollow channel, and when the expansion piece is installed in conjunction with the puncture suture sheath, the elastic balloon can extend out of the hollow channel.

[0011] In this scheme, by adopting the above-mentioned technical scheme, on the one hand, it is only necessary to insert the surgical instrument once into the surgical skin incision during the entire operation, without the need to insert and remove the surgical instrument multiple times, thereby reducing the accidental injury to the patient caused by multiple insertions and removals, and effectively reducing the risk of postoperative complications such as wound bleeding and incisional hernia. At the same time, it also saves the doctor the steps of observing and adjusting the position of the instrument inserted into the human body after inserting different instruments, shortening the operation time and reducing the occurrence of uncontrollable surgical risks; on the other hand, by structurally combining the traditional puncture device and the suture device, the functions of the two instruments are simultaneously realized through one structure. In addition, by combining the expander with the puncture and suture sheath, the elastic balloon of the expander is sent into the skin incision through the sheath of the puncture and suture sheath to expand the extra-abdominal cavity, without the need to send the balloon through additional configuration of other components, effectively reducing the production cost of the instrument, thereby reducing the patient's medical expenses.

[0012] Preferably, there are two notches, the two notches are symmetrically arranged, and the rotating member is installed in each notch.

[0013] In this solution, by providing two rotating parts, the ends of the suture thread can be punctured into the inner side of the fascia on both sides of the skin incision without rotating the sheath of the puncture suture sheath during suturing, thereby avoiding accidental injury caused by rotation of the sheath.

[0014] Preferably, the puncture groove comprises a first puncture groove and a second puncture groove, and the first puncture groove and the second puncture groove are centrally symmetrically arranged.

[0015] In this solution, two puncture grooves are used to facilitate the insertion of a suture needle so that the ends of the suture thread can be inserted into the inner side of the fascia on both sides of the skin incision.

[0016] Preferably, the angle formed by the axes of the first puncture groove and the second puncture groove and the central axis of the hollow channel is 10°-30°.

[0017] In this solution, the axis of the puncture groove and the central axis of the hollow channel are set at the above-mentioned angle to prevent the needle tip of the suture needle from deviating too much from the sheath of the puncture suture sheath after insertion, causing accidental injury to the human body by the needle tip of the suture needle.

[0018] Preferably, a guide groove is provided on the inner wall surface of the hollow channel along the axial direction of the hollow channel, the upper end of the guide groove extends to the upper end of the sheath, and the lower end of the guide groove extends to the notch;

[0019] The linkage assembly is arranged in the guide groove, and the linkage assembly is arranged to be able to slide in the guide groove. The linkage assembly controls the rotation of the rotating member when sliding.

[0020] In this embodiment, by adopting the above-mentioned structure, the rotating part can be unfolded when fascia suturing is required, so that the thread ends of the suture thread on the suture needle can be retained on the inner side of the fascia of the extra-abdominal cavity, so that the thread ends of the suture thread can be pulled out from the skin incision when the puncture suture sheath is pulled out.

[0021] Preferably, a C-shaped hole is formed at the rotating end of the rotating member, the C-shaped hole faces the direction of the guide groove, the linkage assembly comprises a sliding shaft, the sliding shaft passes through the C-shaped hole, and the two ends of the sliding shaft are slidably matched with two opposite side walls of the guide groove;

[0022] The sliding shaft slides between a first position and a second position. In the first position, the sliding shaft is located at an end of the C-shaped hole away from the movable end of the rotating member, and the rotating member is located inside the notch; in the second position, the sliding shaft is located at an end of the C-shaped hole close to the movable end of the rotating member, and the movable end of the rotating member is located outside the sheath.

[0023] In this solution, through the above structure, the rotating member is rotated according to a preset rotation direction to perform fascia suturing.

[0024] Preferably, the linkage assembly further comprises a control rod, wherein the control rod is disposed in the guide groove, and one end of the control rod is connected to the sliding shaft for driving the sliding shaft to slide between the first position and the second position.

[0025] Preferably, the outer surface of the rotating member is coplanar with the outer surface of the sheath, and the inner surface of the rotating member is coplanar with the inner wall of the hollow channel.

[0026] In the present embodiment, through the above-mentioned structure, the outer surface of the rotating part is coplanar with the outer surface of the sheath, which can prevent the outer surface of the rotating part from protruding from the outer surface of the sheath, causing secondary damage to the skin incision during puncture; the inner surface of the rotating part is coplanar with the inner wall surface of the hollow channel, which can prevent the inner surface of the rotating part from protruding from the inner wall surface of the hollow channel to affect the insertion and removal of the expansion piece, as well as affecting the use of surgical instruments during surgery.

[0027] Preferably, a limiting block is provided at one end of the guide trachea away from the elastic balloon, and a limiting slot matching the limiting block is provided at the upper end of the hollow channel of the puncture suture sheath, and the limiting slot extends downward from the top end of the hollow channel for a preset distance and then extends circumferentially.

[0028] In this solution, by adopting the above-mentioned structure for limiting cooperation, it is possible to avoid axial movement of the expansion member in the hollow channel when the elastic balloon is inflated, thereby affecting the expansion effect of the extra-abdominal cavity.

[0029] Preferably, the inflation portion comprises a mounting head and a three-way pipe fitting, and the air guide pipe and the three-way pipe fitting are respectively mounted on the mounting head and are connected through the mounting head.

[0030] Preferably, the three-way pipe fitting is detachably connected to the mounting head via threads.

[0031] In this solution, the above structure is adopted to facilitate replacement of three-way pipe fittings of different diameters according to needs.

[0032] Preferably, the outer surface of the lower end of the sheath is tapered downward.

[0033] In this solution, the above structure is adopted to facilitate the insertion of the puncture suture sheath into the skin incision.

[0034] Preferably, the puncture area is provided with silica gel.

[0035] In the present scheme, the above-mentioned structure is adopted, so that when the suture needle pushes the thread end of the suture thread into the inner side of the fascia and then pulls it out, the thread end of the suture thread can be clamped by the elasticity of the silicone itself, so that the thread end of the suture thread remains on the inner side of the fascia, and at the same time, the thread ends of the suture thread are pulled out from the skin incision when the puncture suture sheath is pulled out.

[0036] Preferably, the suturing needle has a puncture end and a handle end, and a groove recessed toward the handle end is provided on the needle body near the puncture end.

[0037] In this solution, the above structure facilitates the suture thread end to be separated from the suture thread when the suture needle is pulled out after the suture thread end is sent into the inner side of the fascia.

[0038] The positive and progressive effects of the present invention are: on the one hand, the extra-abdominal cavity balloon expansion puncture suture device of the present invention only needs to insert the surgical instrument once into the surgical skin incision during the entire operation, without the need to insert and remove the surgical instrument multiple times, thereby reducing the accidental damage to the patient caused by multiple insertions and removals, and effectively reducing the risk of postoperative complications such as wound bleeding and incisional hernia. At the same time, it also saves the doctor the steps of observing and adjusting the position of the instrument inserted into the human body after inserting different instruments, shortening the operation time and reducing the occurrence of uncontrollable surgical risks; on the other hand, by structurally combining the traditional puncture device and the suturing device, the functions of the two instruments are simultaneously realized through one structure. In addition, by combining the expander with the puncture suture sheath, the elastic balloon of the expander is sent into the skin incision through the sheath of the puncture suture sheath to expand the extra-abdominal cavity, and there is no need to send the elastic balloon in by additionally configuring other components, which effectively reduces the production cost of the instrument, thereby reducing the patient's medical expenses. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 Schematic diagram of the structure of the puncture suture sheath in an embodiment of the present invention.

[0040] Figure 2 for Figure 1 Schematic diagram of the structure of the mid-puncture suture sheath from another angle.

[0041] Figure 3 for Figure 1 Schematic diagram of the cross-sectional structure of the puncture suture sheath when the rotating part is not rotated and unfolded.

[0042] Figure 4 for Figure 3 A schematic diagram of the enlarged local structure in the middle.

[0043] Figure 5 for Figure 1 Schematic diagram of the cross-sectional structure of the puncture suture sheath after the rotating part rotates and unfolds.

[0044] Figure 6 for Figure 5 Enlarged schematic diagram of the local structure at point B in the middle.

[0045] Figure 7 Schematic diagram of the structure of the expansion member in the embodiment of the present invention.

[0046] Figure 8 It is a schematic diagram of the assembly of the expansion piece and the puncture suture sheath in an embodiment of the present invention.

[0047] Fig. 9It is a schematic diagram of the structure of the embodiment of the present invention when used for suturing.

[0048] Fig.10 It is a schematic diagram of the structure of the needle tip at the puncture end of the suture needle in an embodiment of the present invention.

[0049] Description of reference numerals:

[0050] The expansion member 100, the elastic balloon 110, the guide trachea 120, the limit block 121, the inflation part 130, the mounting head 131, the three-way pipe fitting 132, the puncture and suture sheath 200, the sheath shell 210, the puncture groove 211, the notch 212, the hollow channel 213, the limit slot 214, the guide groove 215, the rotating member 220, the puncture area 221, the C-shaped hole 222, the rotating shaft 223, the sliding shaft 230, the control rod 240, the suture needle 300, and the groove 301. DETAILED DESCRIPTION

[0051] The present invention is further described below by way of examples, but the present invention is not limited to the scope of the examples.

[0052] like Figure 1-9 As shown, this embodiment provides an extra-abdominal balloon dilatation puncture suture device, which includes an expander 100 and a puncture suture sheath 200. The expander 100 includes an elastic balloon 110, a guide airway 120 and an inflation portion 130. The elastic balloon 110 and the inflation portion 130 are respectively arranged at two ends of the guide airway 120. The inflation portion 130 is used to inflate the elastic balloon 110. The elastic balloon 110 can expand after being inflated and recover after being deflated. The puncture suture sheath 200 includes a sheath shell 210, wherein a hollow passage 213 is provided inside the sheath shell 210 and runs through the sheath shell 210 in the axial direction. A notch 212 is provided at the lower end of the sheath shell 210, wherein a rotatable rotating member 220 is installed in the notch 212, wherein a puncture area 221 is provided on the rotating member 220, and wherein a linkage assembly connected to the rotating member 220 is provided inside the sheath shell 210, wherein the linkage assembly is used to control the rotation of the rotating member 220 so that the movable end of the rotating member 220 moves in a direction away from the central axis of the hollow passage 213. A puncture groove 211 is provided on the outer surface of the sheath shell 210, wherein the puncture groove 211 is used for the suture needle 300 to pass through. When the suture needle 300 is rotated to a preset position, the suture needle 300 can be inserted into and pass through the puncture area 221 after passing through the puncture groove 211, and the puncture area 221 is configured to leave the suture thread on the suture needle 300 at the puncture area 221 after the suture needle 300 passes through the puncture area 221. The length of the guide tube 120 is greater than the length of the hollow channel 213 , and the outer diameter of the guide tube 120 is smaller than the inner diameter of the hollow channel 213 . When the expansion piece 100 is installed with the puncture suture sheath 200 , the elastic balloon 110 can extend out of the hollow channel 213 .

[0053] like Figure 8 As shown, before using the expansion puncture suture device, the expansion piece 100 is first inserted into the hollow channel 213 of the puncture suture sheath 200, and the elastic balloon 110 is extended. During surgery, the end of the puncture suture sheath 200 that exposes the elastic balloon 110 is inserted into the human body through a skin incision in the patient's abdomen, and then the elastic balloon 110 is inflated so that the elastic balloon 110 expands to push away the soft tissue around the gap under the skin incision to form a space for laparoscopic surgery. After the surgical space is formed, the elastic balloon 110 is deflated and the expansion piece 100 is removed from the hollow channel 213 of the puncture suture sheath 200. When performing surgery, the doctor can send a laparoscope and surgical instruments into the human body through the hollow channel 213 of the puncture suture sheath 200 for observation and surgery. Fig. 9 As shown, after the operation is completed, the rotating part 220 on the puncture suture sheath 200 is unfolded, and the thread ends of the suture thread are sent into the inner side of the fascia on both sides of the skin incision after the suture needle 300 passes through the puncture groove 211. Then the rotating part 220 is reset and the puncture suture sheath 200 is pulled out. At this time, the thread ends of the suture thread are pulled out of the skin incision under the drive of the puncture suture sheath 200. The suture thread will be detached from the puncture groove 211 and enter the human body under the pulling of the thread ends at both ends. The fascia is sutured by cross-knotting the thread ends of the suture thread.

[0054] By adopting the above technical scheme, on the one hand, it is only necessary to insert the surgical instrument once into the surgical skin incision during the entire operation, without the need to insert and remove the surgical instrument multiple times, thereby reducing the accidental damage to the patient caused by multiple insertions and removals, and effectively reducing the risk of postoperative complications such as wound bleeding and incisional hernia. At the same time, it also saves the doctor the steps of observing and adjusting the position of the instrument inserted into the human body after inserting different instruments, shortening the operation time and reducing the occurrence of uncontrollable surgical risks; on the other hand, by structurally combining the traditional puncture device and the suture device, the functions of the two instruments are simultaneously realized through one structure. In addition, by combining the expander 100 with the puncture suture sheath 200, the elastic balloon 110 of the expander 100 is delivered into the skin incision through the sheath 210 of the puncture suture sheath 200 to expand the extra-abdominal cavity, without the need to deliver the balloon through additional configuration of other components, effectively reducing the production cost of the instrument, thereby reducing the patient's medical expenses.

[0055] In this embodiment, there are two notches 212, which are symmetrically arranged, and a rotating member 220 is installed in each notch 212. By providing two rotating members 220, the ends of the suture thread can be punctured into the inner side of the fascia on both sides of the skin incision without rotating the sheath 210 of the puncture suture sheath 200 during suturing, thereby avoiding accidental injuries caused by the rotation of the sheath 210.

[0056] In some other embodiments, only one notch 212 and a corresponding rotating member 220 may be provided. When suturing, the thread end of the suture may be first fed into the inner side of the fascia, and then the puncture suture sheath 200 may be rotated 180 degrees, and then the other end of the suture may be fed into the inner side of the fascia, so that suturing can also be performed. Of course, in some embodiments, other reasonable number of rotating members 220 may be provided, and when suturing, multiple sutures may be used to better suture the inside of the incision.

[0057] In this embodiment, the puncture groove 211 includes a first puncture groove and a second puncture groove, and the first puncture groove and the second puncture groove are centrally symmetrically arranged. The two puncture grooves 211 facilitate the insertion of the suture needle 300 to insert the two ends of the suture thread into the inner side of the fascia on both sides of the skin incision.

[0058] The angle formed by the axis of the first puncture groove and the second puncture groove and the central axis of the hollow channel 213 is 10°-30°. The axis of the puncture groove 211 and the central axis of the hollow channel 213 are set at the above angle to avoid the needle of the suture needle 300 from deviating too much from the sheath 210 of the puncture suture sheath 200 after insertion, causing the needle of the suture needle 300 to cause accidental injury to the human body. Specifically, the angle formed by the axis of the puncture groove 211 and the central axis of the hollow channel 213 can be related to the length of the sheath 210. This is because the length of the sheath 210 of the puncture suture sheath 200 used by the patient may also be different. In order to avoid the suture needle 300 causing accidental injury to the patient during insertion, it is necessary to select an expansion puncture suture device with a suitable sheath 210 length according to the patient's body shape.

[0059] like Figure 3-6 As shown, in this embodiment, the inner wall surface of the hollow channel 213 is provided with a guide groove 215 along the axial direction of the hollow channel 213, the upper end of the guide groove 215 extends to the upper end of the sheath 210, and the lower end of the guide groove 215 extends to the notch 212; a linkage assembly is provided in the guide groove 215, and the linkage assembly is configured to slide in the guide groove 215, and the linkage assembly controls the rotation of the rotating member 220 when sliding. By adopting the above structure, the rotating member 220 can be unfolded when fascia suturing is required, so that the thread ends of the suture thread on the suture needle 300 are retained on the inner side of the fascia of the abdominal cavity, so that the thread ends of the suture thread at both ends can be pulled out from the skin incision when the puncture suture sheath 200 is pulled out.

[0060] The inner diameter of the hollow channel can be selected to be 10 mm or 12 mm to adapt to existing commonly used surgical instruments. Of course, the inner diameter size of the hollow channel can also be designed and produced according to actual needs.

[0061] Specifically, Figure 4 and Figure 6As shown, the rotating member 220 is installed in the notch 212 through the rotating shaft 223, and a C-shaped hole 222 is opened at the rotating end of the rotating member 220. The C-shaped hole 222 opens toward the outside of the sheath 210. The linkage assembly includes a sliding shaft 230, which passes through the C-shaped hole 222. The two ends of the sliding shaft 230 are slidably matched with two opposite side walls of the guide groove 215. The sliding shaft 230 slides between the first position and the second position, as shown in FIG. Figure 4 As shown, in the first position, the sliding shaft 230 is located at one end of the C-shaped hole 222 away from the movable end of the rotating member 220, and the rotating member 220 is located inside the notch 212; Figure 6 As shown, in the second position, the sliding shaft 230 is located at one end of the C-shaped hole 222 close to the movable end of the rotating member 220, and the movable end of the rotating member 220 is located outside the sheath 210. Through the above structure, the rotating member 220 rotates in a preset rotation direction to perform fascia suturing.

[0062] like Figure 3-6 As shown, the linkage assembly further includes a control rod 240, which is disposed in the guide groove 215, and one end of the control rod 240 is connected to the sliding shaft 230 for driving the sliding shaft 230 to slide between the first position and the second position.

[0063] The sheath 210 may also be provided with a mechanism (not shown in the figure) for locking and limiting the control rod 240. For example, after the control rod 240 controls the sliding shaft 230 to move to the first position or the second position, the control rod 240 is locked and limited so that the sliding shaft 230 remains in the corresponding position, preventing the sliding shaft 230 from moving again and affecting the doctor's surgery.

[0064] The locking and limiting mechanism can be a structure that locks and limits the control rod 240 through threaded matching. For example, the control rod 240 has an external thread, and the sheath 210 has a threaded hole that matches the external thread. The control rod 240 cooperates with the threaded hole, and the control rod 240 is rotated to make the control rod 240 move axially along the guide groove 215. The locking and limiting mechanism can also lock and limit the control rod 240 through a card-connected structure. For example, two card slots are arranged on the control rod 240 at a certain distance. The upper end surface of the sheath 210 has a movable card block, which can be inserted into and disengaged from the card slot. When the control rod 240 needs to be moved, the card block disengages from the card slot, and the control rod 240 moves freely. When the control rod 240 controls the sliding shaft 230 to move to the first position, the card block can be inserted into the lower card slot, so that the rotating member 220 is located inside the notch 212 and remains motionless. When the control rod 240 controls the sliding shaft 230 to move to the second position, the card block can be inserted into the upper card slot, so that the movable end of the rotating member 220 is located at a preset position outside the sheath 210 and remains motionless.

[0065] In some other embodiments, the rotating member 220 may be controlled to rotate and reset by other conventional mechanical structures, which will not be described in detail here.

[0066] In this embodiment, the outer surface of the rotating member 220 is coplanar with the outer surface of the sheath 210, and the inner surface of the rotating member 220 is coplanar with the inner wall surface of the hollow channel 213. Through the above structure, the outer surface of the rotating member 220 is coplanar with the outer surface of the sheath 210, which can prevent the outer surface of the rotating member 220 from protruding from the outer surface of the sheath 210, resulting in secondary damage to the skin incision during puncture; the inner surface of the rotating member 220 is coplanar with the inner wall surface of the hollow channel 213, which can prevent the inner surface of the rotating member 220 from protruding from the inner wall surface of the hollow channel 213 to affect the insertion and extraction of the expansion member 100, and affect the use of surgical instruments during surgery.

[0067] The outer surface of the lower end of the sheath shell 210 is tapered downward to facilitate the insertion of the puncture suture sheath 200 into the skin incision.

[0068] The puncture area 221 is installed with silicone, so that when the suture needle 300 is pulled out after sending the thread end of the suture thread into the inner side of the fascia, the thread end of the suture thread can be clamped by the elasticity of the silicone itself, so that the thread end of the suture thread remains on the inner side of the fascia. At the same time, when the puncture suture sheath 200 is pulled out, the thread ends of the suture thread are pulled out from the skin incision.

[0069] In this embodiment, a limiting block 121 is provided at one end of the guide trachea 120 away from the elastic balloon 110, and a limiting slot 214 matching the limiting block 121 is provided at the upper end of the hollow channel 213 of the puncture suture sheath 200, and the limiting slot 214 extends downward from the top end of the hollow channel 213 for a preset distance and then extends circumferentially. By adopting the above structure for limiting cooperation, it is possible to avoid axial movement of the expansion member 100 in the hollow channel 213 when the elastic balloon 110 is inflated, thereby affecting the expansion effect of the extra-abdominal cavity.

[0070] The inflatable part 130 includes a mounting head 131 and a three-way pipe fitting 132. The air guide pipe 120 and the three-way pipe fitting 132 are respectively mounted on the mounting head 131 and communicated through the mounting head 131. The three-way pipe fitting 132 is detachably connected to the mounting head 131 through threads, so that the three-way pipe fitting 132 of different pipe diameters can be replaced according to needs.

[0071] The expansion piece 100 of the expansion puncture suture device can also be used as a flusher. After the doctor completes the operation on the patient, before suturing, the elastic balloon 110 of the expansion piece 100 can be cut off, reinserted into the body through the hollow channel 213, and the three-way pipe 132 is replaced as needed, and a flushing liquid such as physiological saline is passed to flush the surgical space. After the flushing is completed, the flushing liquid such as physiological saline is sucked out, and then the suturing operation is performed. In this way, the expansion piece 100 can be reused, the use of consumables is reduced, and the cost is reduced, and the use of other flushing devices to the patient's skin incision can be avoided. Unintentional damage caused by other flushing devices.

[0072] The suture needle 300 has a puncture end and a handle end. A groove 301 is provided on the needle body near the puncture end and is recessed toward the handle end. Fig.10 The above structure facilitates the suturing needle 300 to separate from the suture thread when the suture thread end is pulled out after the suture thread end is sent into the inner side of the fascia.

[0073] Although the specific embodiments of the present invention are described above, it should be understood by those skilled in the art that this is only for illustration and the protection scope of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, but these changes and modifications all fall within the protection scope of the present invention.

Claims

1. An extra-abdominal balloon dilatation puncture suture device, characterized in that: The extra-abdominal balloon dilatation puncture suture device comprises: An expansion member, the expansion member comprises an elastic balloon, a guide trachea and an inflation portion, the elastic balloon and the inflation portion are respectively arranged at two ends of the guide trachea, the inflation portion is used to inflate the elastic balloon, and the elastic balloon can expand after being inflated and recover after being deflated; A puncture suture sheath, the puncture suture sheath comprising a sheath shell, a hollow passage penetrating along the axial direction is provided inside the sheath shell, a notch is provided at the lower end of the sheath shell, a rotatable rotating member is installed in the notch, a puncture area is provided on the rotating member, a linkage assembly connected to the rotating member is provided in the sheath shell, and the linkage assembly is used to control the rotation of the rotating member so that the movable end of the rotating member moves in a direction away from the central axis of the hollow passage; A puncture groove is provided on the outer surface of the sheath, and the puncture groove is used for a suturing needle to pass through. When the rotating member is rotated to a preset position, the suturing needle can be inserted into and pass through the puncture area after passing through the puncture groove. The puncture area is configured to leave the suture thread on the suturing needle at the puncture area after the suturing needle passes through the puncture area. The length of the guide airway is greater than the length of the hollow channel, the outer diameter of the guide airway is smaller than the inner diameter of the hollow channel, and when the expansion piece is installed in conjunction with the puncture suture sheath, the elastic balloon can extend out of the hollow channel.

2. The extra-abdominal balloon dilatation puncture suture device according to claim 1, characterized in that: There are two notches, which are symmetrically arranged, and the rotating part is installed in each notch.

3. The extra-abdominal balloon dilatation puncture suture device according to claim 2, characterized in that: The puncture groove comprises a first puncture groove and a second puncture groove, and the first puncture groove and the second puncture groove are centrally symmetrically arranged.

4. The extra-abdominal balloon dilatation puncture suture device according to claim 3, characterized in that: The angle formed by the axes of the first puncture groove and the second puncture groove and the central axis of the hollow channel is 10°-30°.

5. The extra-abdominal balloon dilatation puncture suture device according to claim 1, characterized in that: The inner wall surface of the hollow channel is provided with a guide groove along the axial direction of the hollow channel, the upper end of the guide groove extends to the upper end of the sheath, and the lower end of the guide groove extends to the notch; The linkage assembly is arranged in the guide groove, and the linkage assembly is arranged to be able to slide in the guide groove. The linkage assembly controls the rotation of the rotating member when sliding.

6. The extra-abdominal balloon dilatation puncture suture device according to claim 5, characterized in that: A C-shaped hole is formed at the rotating end of the rotating member, and the C-shaped hole faces the direction of the guide groove. The linkage assembly includes a sliding shaft, and the sliding shaft passes through the C-shaped hole. Both ends of the sliding shaft are slidably matched with two opposite side walls of the guide groove. The sliding shaft slides between a first position and a second position. In the first position, the sliding shaft is located at an end of the C-shaped hole away from the movable end of the rotating member, and the rotating member is located inside the notch; in the second position, the sliding shaft is located at an end of the C-shaped hole close to the movable end of the rotating member, and the movable end of the rotating member is located outside the sheath.

7. The extra-abdominal balloon dilatation puncture suture device according to claim 6, characterized in that: The linkage assembly further includes a control rod, which is disposed in the guide groove. One end of the control rod is connected to the sliding shaft and is used to drive the sliding shaft to slide between the first position and the second position.

8. The extra-abdominal balloon dilatation puncture suture device according to claim 1, characterized in that: The outer surface of the rotating member is coplanar with the outer surface of the sheath, and the inner surface of the rotating member is coplanar with the inner wall surface of the hollow channel.

9. The extra-abdominal balloon dilatation puncture suture device according to claim 1, characterized in that: A limiting block is provided at one end of the guide trachea away from the elastic balloon, and a limiting slot matching the limiting block is provided at the upper end of the hollow channel of the puncture suture sheath, and the limiting slot extends downward from the top end of the hollow channel for a preset distance and then extends circumferentially.

10. The extra-abdominal balloon dilatation puncture suture device according to claim 1, characterized in that: The inflation portion comprises a mounting head and a three-way pipe fitting, and the air guide pipe and the three-way pipe fitting are respectively mounted on the mounting head and communicated with each other through the mounting head.

11. The extra-abdominal balloon dilatation puncture suture device according to claim 10, characterized in that: The three-way pipe fitting is detachably connected to the mounting head via threads.

12. The extra-abdominal balloon dilatation puncture suture device according to claim 1, characterized in that: The outer surface of the lower end of the sheath is tapered downward.

13. The extra-abdominal balloon dilatation puncture suture device according to claim 1, characterized in that: The puncture area is provided with silica gel.

14. The extra-abdominal balloon dilatation puncture suture device according to claim 1, characterized in that: The suturing needle comprises a puncture end and a handle end, and a groove which is recessed towards the handle end is provided on the needle body close to the puncture end.

Images