A hemostatic device

Abstract

This application discloses a hemostatic device, including a carrier cap, a fitting forceps, a guide tube, a driving component, and multiple hemostatic clips. The carrier cap includes a fixed end cap and a rotating end cap. The fixed end cap is fixedly fitted onto the distal end of the endoscope, and the rotating end cap is rotatably fitted onto the distal end of the endoscope. Multiple hemostatic clips are disposed inside the rotating end cap, and the hemostatic clips are integrally connected to the rotating end cap via at least one connecting portion. The fitting forceps are configured to extend into the rotating end cap through the instrument channel of the endoscope, and to clamp and apply force to the hemostatic clips to break the connecting portion, thereby removing the hemostatic clips from the rotating end cap, and to control the closure of the hemostatic clips. The driving component is located at the proximal end of the endoscope, and the rotating end cap is connected to the driving component via a rotating driving tendon. The guide tube is located on the outer peripheral wall of the endoscope, and the rotating driving tendon passes through the fixed end cap and the guide tube. The driving component is configured to drive the rotating end cap to rotate via the rotating driving tendon. This hemostatic device can shorten the operation time when used.

Description

Technical Field

[0001] This application relates to the field of medical device technology, specifically to a hemostatic device. Background Technology

[0002] In modern medicine, minimally invasive surgery plays an increasingly important role in the field of surgical medicine, aiming to achieve minimal surgical trauma, less pain, faster postoperative recovery, and better aesthetic results. During surgery, bleeding from the wound caused by the removal of diseased tissue is typically stopped by using hemostatic clips to close the wound. In endoscopic surgery, hemostatic clips are usually inserted into the patient's digestive tract through the instrument channel of the endoscope to stop bleeding in the digestive tract.

[0003] In related techniques, disposable hemostatic devices can only release one hemostatic clip per endoscopic instrument channel. Furthermore, the nature of minimally invasive surgery and the size of the instrument channel dictate that the hemostatic clips are relatively small. For larger wounds, increasing the size of the hemostatic clips is not sufficient, often requiring the use of multiple clips. However, this necessitates frequent replacement of the disposable hemostatic device and multiple insertions of the clips through the instrument channel, making the procedure overly complex and increasing surgical time.

[0004] Therefore, how to provide a solution to overcome or alleviate the above-mentioned defects remains a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] The purpose of this application is to provide a hemostatic device to shorten surgical time.

[0006] To solve the above-mentioned technical problems, this application provides a hemostatic device, which includes a carrier cap, a fitting forceps, a guide tube, a driving component, and multiple hemostatic clamps;

[0007] The carrier cap includes a fixed end cap and a rotating end cap. The fixed end cap is fixedly fitted onto the distal end of the endoscope, and the rotating end cap is rotatably fitted onto the distal end of the endoscope.

[0008] Multiple hemostatic clips are disposed inside the rotating end cap, and the hemostatic clips are integrally connected to the rotating end cap via at least one connecting part;

[0009] The clamp is configured to extend into the rotating end cap through the instrument channel of the endoscope, and to clamp and apply force to the hemostatic clip to break the connection, thereby removing the hemostatic clip from the rotating end cap, and to control the closure of the hemostatic clip.

[0010] The driving component is located at the proximal end of the endoscope. The rotating end cap is connected to the driving component via a rotating driving tendon. The guide tube is located on the outer peripheral wall of the endoscope. The rotating driving tendon passes through the fixed end cap and the guide tube. The driving component is configured to drive the rotating end cap to rotate via the rotating driving tendon.

[0011] Optionally, the inner peripheral wall of the rotating end cap is provided with a support platform;

[0012] The support platform is provided with a plurality of storage slots that extend through the axis. The plurality of hemostatic clips are at least partially located in the plurality of storage slots. The end of the hemostatic clip is closer to the far end of the rotating end cap than the root end. The connecting part is a protrusion provided on the side wall of the storage slot.

[0013] Optionally, the end of the hemostatic clip extends out of the storage slot.

[0014] Optionally, the hemostatic clip has two clamping arms and two connecting portions;

[0015] The two opposing sidewalls of the clamping arms are respectively provided with clamping protrusions, which are used to cooperate with the mating clamps to achieve the clamping;

[0016] The two connecting parts are respectively connected to the opposite sidewalls of the two clamping arms, and are respectively located on the side of the two clamping protrusions near the ends of the clamping arms.

[0017] Optionally, the plurality of storage slots are distributed at circumferential intervals along the rotating end cap.

[0018] Optionally, the storage slot is cylindrical, and the two connecting portions are symmetrically arranged about the axis of the storage slot; and / or,

[0019] The distal end face of the support platform is flush with the distal end face of the rotating end cap, and the proximal end face of the support platform is perpendicular to the axis of the rotating end cap; and / or,

[0020] The inner sidewall of the support platform is provided with at least one relief groove, which extends through the support platform axially.

[0021] Optionally, the hemostatic clip has two clamping arms;

[0022] The ends of the two clamping arms are respectively provided with a buckle part, and the opposite side walls are respectively provided with clamping protrusions;

[0023] The clamping pliers include a drive handle, a flexible tube, and a clamping head. The drive handle is connected to the clamping head through the flexible tube. The clamping head has two opening and closing clamping arms, and the opposing sidewalls of the two clamping arms are respectively provided with clamping grooves.

[0024] The two clamping slots can respectively engage with the two clamping protrusions so that the clamping forceps can clamp and apply force to the hemostatic clip; under the action of the two forceps arms, the two latching parts can be engaged to close the hemostatic clip.

[0025] Optionally, the carrier cap may further include an auxiliary end cap;

[0026] The auxiliary end cap is rotatably fitted onto the distal end of the endoscope and outside the fixed end cap, while the auxiliary end cap is fixedly fitted onto the rotating end cap;

[0027] The outer peripheral wall of the rotating end cap is provided with a first path groove and a second path groove extending circumferentially; the fixed end cap includes a mirror ring, which is fixedly sleeved on the endoscope and is provided with a first protrusion extending distally along the axial direction, the first protrusion being provided with a first channel and a second channel extending substantially along the axial direction; the auxiliary end cap is provided with a third channel and a fourth channel extending substantially along the axial direction.

[0028] There are two rotation drive tendons. The distal ends of the two rotation drive tendons are fixed to the rotation end cap. The two rotation drive tendons are respectively wound in the first path groove and the second path groove in opposite directions. The proximal ends of the two rotation drive tendons pass through the first channel and the second channel, and respectively pass through the third channel and the fourth channel.

[0029] Optionally, the driving component includes a rotary knob and a knob base;

[0030] The button base has a button slot, and the rotary knob has a rotating protrusion that is rotatably inserted into the button slot.

[0031] The side wall of the button base is provided with a fifth channel and a sixth channel respectively communicating with the button slot, and the outer peripheral wall of the rotating protrusion is provided with a third path groove and a fourth path groove extending in the circumferential direction.

[0032] The proximal ends of the two rotary drive tendons enter the button slot through the fifth channel and the sixth channel, respectively, and are respectively wound and fixed in the third path slot and the fourth path slot in opposite directions.

[0033] Optionally, the hemostatic device further includes a locking device; the locking device includes a locking knob and a spring;

[0034] The bottom of the button slot is provided with a knob slot, the inner diameter of the knob slot is smaller than the inner diameter of the button slot, and the inner peripheral wall of the knob slot is provided with an internal thread.

[0035] The locking knob has an external thread on its outer peripheral wall at the end. The locking knob is rotatably inserted into the rotary knob and its end is threaded into the knob groove. One end of the spring is fixedly connected to the end of the locking knob, and the other end of the spring abuts against the bottom of the knob groove. Rotating the locking knob causes it to move axially, which can press and lock the rotary knob.

[0036] The hemostatic device provided in this application comprises a carrier cap, a matching forceps, a guide tube, a driving component, and multiple hemostatic clips. The carrier cap includes a fixed end cap and a rotating end cap. The fixed end cap is fixedly fitted onto the distal end of the endoscope, and the rotating end cap is rotatably fitted onto the distal end of the endoscope. Multiple hemostatic clips are disposed inside the rotating end cap, and the hemostatic clips are integrally connected to the rotating end cap through at least one connecting part. The driving component is disposed at the proximal end of the endoscope, and the rotating end cap is connected to the driving component through a rotating driving tendon. The guide tube is disposed on the outer peripheral wall of the endoscope, and the rotating driving tendon passes through the fixed end cap and the guide tube.

[0037] In use, the operating mechanism rotates the rotating cap via the rotating drive tendon, aligning the hemostatic clip. The forceps then extend through the endoscope's instrument channel into the rotating cap, clamping and applying force to the hemostatic clip until the connection breaks, removing the clip from the rotating cap. The forceps can also be controlled to close the clip at the corresponding location on a large wound. This process is repeated to remove other hemostatic clips and close other corresponding locations on the large wound until the entire wound is closed. Thus, a single insertion of the forceps through the endoscope's instrument channel allows for the continuous release of multiple hemostatic clips without the forceps repeatedly entering and exiting the instrument channel, significantly improving operational convenience and shortening surgical time. Attached Figure Description

[0038] Figure 1 This is a schematic diagram of the installation structure of the hemostasis device on an endoscope according to the embodiments provided in this application;

[0039] Figure 2 for Figure 1 A magnified view of a section at point A in the middle;

[0040] Figure 3 for Figure 2 The diagram shows the structure of the hemostatic device when the hemostatic clamp has just been removed by the forceps.

[0041] Figure 4 for Figure 2 The diagram shows the structure of the hemostatic device when the rotating end cap extends after the hemostatic clamp is removed with the forceps.

[0042] Figure 5 for Figure 2 The left view;

[0043] Figure 6 for Figure 2 Axial sectional view;

[0044] Figure 7 for Figure 3 Axial sectional view;

[0045] Figure 8 This is a schematic diagram of the carrier cap in the hemostatic device provided in the embodiments of this application;

[0046] Figure 9 for Figure 8 Axial sectional view;

[0047] Figure 10 for Figure 8 The diagram shows the structure of the fixed end cap in the carrier cap.

[0048] Figure 11 for Figure 8 The diagram shows the structure of the rotating end cap in the carrier cap.

[0049] Figure 12 for Figure 8 The diagram shows the structure of the auxiliary end cap in the carrier cap.

[0050] Figure 13 This is a schematic diagram of the hemostatic clip in the hemostatic device provided in the embodiments of this application;

[0051] Figure 14 This is a schematic diagram of the rotating knob in the hemostasis device provided in the embodiments of this application;

[0052] Figure 15 This is a schematic diagram of the structure of the button seat in the hemostatic device provided in the embodiments of this application;

[0053] Figure 16 for Figure 15 Axial sectional view;

[0054] Figure 17 This is an axial cross-sectional view of the rotary knob in the hemostasis device provided in this application after it is installed on the knob seat;

[0055] Figure 18 An axial cross-sectional view of the driving component and locking device in the unlocked state in the hemostasis device provided in the embodiments of this application;

[0056] Figure 19 This is an axial cross-sectional view of the driving component and locking device in the locked state of the hemostatic device provided in the embodiments of this application.

[0057] The reference numerals in the above figures are explained as follows:

[0058] 1-Endoscope, 1a-Instrument channel, 11-Insertion section, 12-Head tip, 13-Operating section;

[0059] 2-Carrier cap, 21-Rotating end cap, 211-First path groove, 212-Second path groove, 213-Second boss, 214-Supporting platform, 215-Storage groove, 216-Fixing groove, 217-Connecting part, 218-Endoscope channel, 219-Leaving groove, 22-Fixing end cap, 221-First boss, 222-Endoscope ring, 223-First channel, 224-Second channel, 23-Auxiliary end cap, 231-Third channel, 232-Fourth channel;

[0060] 3-Rotational drive tendon, 31-Second fixation block;

[0061] 4-Matching clamps, 41-Flexible tube, 42-Clamping head, 421-Clamping arm, 422-Clamping groove;

[0062] 5-Guide tube;

[0063] 6-Drive component, 61-Rotary knob, 611-Rotary protrusion, 612-Third path groove, 613-Fourth path groove, 62-Knob seat, 621-Fifth channel, 622-Sixth channel, 623-Button groove, 624-Knob groove, 625-Connecting ear;

[0064] 7-Locking device, 71-Locking knob, 711-Mounting slot, 72-Spring;

[0065] 8-Hemostatic clip, 81-Snap fastener, 82-Clamping protrusion, 83-Clamping arm. Detailed Implementation

[0066] To enable those skilled in the art to better understand the present application, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0067] It should be noted that in this application, the terms "first" and "second" are used only to facilitate the description of two or more structures or components that are identical or similar in structure and / or function, and do not indicate any special limitation on order and / or importance.

[0068] In this application, "and / or" merely describes the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone.

[0069] In this application, unless otherwise expressly specified and limited, the term "connection" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium; it can also refer to the internal connection between two components; it can be a mechanical connection or a communication connection. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0070] In this application, "multiple" means two or more.

[0071] In this application, "proximal end" refers to the end of the hemostatic device provided in this application that is closer to the doctor during use, and "distal end" refers to the end that is farther away from the doctor.

[0072] Please refer to Figures 1 to 13 , Figure 1 This is a schematic diagram of the installation structure of the hemostasis device on an endoscope according to the embodiments provided in this application; Figure 2 for Figure 1 A magnified view of a section at point A in the middle; Figure 3 for Figure 2 The diagram shows the structure of the hemostatic device when the hemostatic clamp has just been removed by the forceps. Figure 4 for Figure 2 The diagram shows the structure of the hemostatic device when the rotating end cap extends after the hemostatic clamp is removed with the forceps. Figure 5 for Figure 2 The left view; Figure 6 for Figure 2 Axial sectional view; Figure 7 for Figure 3 Axial sectional view; Figure 8 This is a schematic diagram of the carrier cap in the hemostatic device provided in the embodiments of this application; Figure 9 for Figure 8 Axial sectional view; Figure 10 for Figure 8 The diagram shows the structure of the fixed end cap in the carrier cap. Figure 11 for Figure 8 The diagram shows the structure of the rotating end cap in the carrier cap. Figure 12 for Figure 8 The diagram shows the structure of the auxiliary end cap in the carrier cap. Figure 13 This is a schematic diagram of the hemostatic clip in the hemostatic device provided in the embodiments of this application.

[0073] like Figures 1 to 7As shown, the hemostatic device provided in this embodiment is used in conjunction with an endoscope 1. The endoscope 1 includes an operating section 13, an insertion section 11, and a tip 12. The endoscope 1 has an instrument channel 1a. When delivering the endoscope 1, the surgeon holds the tip of the endoscope 1 with one hand and the operating section 13 with the other. First, the surgeon controls the tip 12 to be inserted into the patient's oral cavity, and then controls the insertion section 11 to be inserted into the patient's oral cavity until the tip 12 is delivered into the patient's digestive tract. Surgical instruments, such as the forceps 4 in this application, are delivered from the proximal end of the instrument channel 1a to the tip 12 via the insertion section 11.

[0074] in, Figure 1 and Figure 2 In the hemostatic device shown, the forceps 4 extend through the instrument channel 1a of the endoscope 1 into the storage slot 215 of the rotating end cap 21 for retrieval of the hemostatic clip 8. A large wound refers to a wound with a relatively large area.

[0075] In the embodiments provided in this application, please refer to Figure 1 and Figure 2 The hemostatic device includes a carrier cap 2, a fitting forceps 4, a guide tube 5, a driving component 6, and multiple hemostatic clips 8. The carrier cap 2 includes a fixed end cap 22 and a rotating end cap 21. The fixed end cap 22 is fixedly fitted onto the distal end of the endoscope 1, and the rotating end cap 21 is rotatably fitted onto the distal end of the endoscope 1. Figure 6 As shown, multiple hemostatic clips 8 are disposed inside the rotating end cap 21, and the hemostatic clips 8 are integrally connected to the rotating end cap 21 via at least one connecting portion 217. The mating forceps 4 are configured to extend into the rotating end cap 21 through the instrument channel 1a of the endoscope 1, and to clamp and apply force to the hemostatic clips 8 to break the connecting portion 217, thereby removing the hemostatic clips 8 from the rotating end cap 21, and to control the closure of the hemostatic clips 8. A drive component 6 is disposed at the proximal end of the endoscope 1, and the rotating end cap 21 is connected to the drive component 6 via a rotation drive tendon 3. A guide tube 5 is disposed on the outer peripheral wall of the endoscope 1, and the rotation drive tendon 3 passes through the fixed end cap 22 and the guide tube 5. The drive component 6 is configured to drive the rotating end cap 21 to rotate via the rotation drive tendon 3.

[0076] It is easy to understand that the rotating end cap 21 has an endoscope channel 218, which forms a working opening on the distal end face of the rotating end cap 21. The tip 12 of the endoscope 1 is installed in the endoscope channel 218, and the hemostatic clip 8 is located in the endoscope channel 218 and in front of the tip 12. When the rotating end cap 21 rotates, it can drive multiple hemostatic clips 8 to rotate, so that the hemostatic clips 8 rotate to the alignment position. Here, the alignment position is also the position close to the exit of the instrument channel 1a of the endoscope 1. At this position, when the forceps 4 is inserted into the rotating end cap 21 through the instrument channel 1a of the endoscope 1, the hemostatic clip 8 is within the reach of the forceps 4. The forceps 4 can remove the hemostatic clip 8 from the rotating end cap 21 by action. The lens on the tip 12 of the endoscope 1 can be used to observe whether the hemostatic clip 8 has reached the alignment position.

[0077] like Figure 4 and Figure 6 As shown, the forceps 4 has a drive handle (not shown), a flexible tube 41, and a forceps head 42. The drive handle is connected to the forceps head 42 via the flexible tube 41. The flexible tube 41 is a long and slender structure that allows the forceps head 42 to be delivered to the tip 12 of the endoscope 1 through the instrument channel 1a of the endoscope 1. By operating the drive handle at the proximal end of the endoscope 1, the movement of the flexible tube 41 and the forceps head 42 can be controlled. The forceps 4 also has an opening and closing drive tendon (not shown). The drive handle is connected to the forceps head 42 via the opening and closing drive tendon. The drive handle can drive the opening and closing of the forceps head 42 through the opening and closing drive tendon, so as to remove the hemostatic clip 8 from the rotating end cap 21 using the forceps head 42. When the forceps head 42 is closed, the hemostatic clip 8 can be controlled to close.

[0078] In use, the carrier cap 2 enters the body along with the endoscope 1 and is inserted into the rotating end cap 21 via the instrument channel 1a of the endoscope 1 using the matching forceps 4. The rotating end cap 21 is rotated by the rotating drive tendon 3 through the proximal operation of the drive component 6, causing the hemostatic clip 8 to rotate to the aligned position. The matching forceps 4 are then operated proximally, causing the forceps head 42 to clamp the hemostatic clip 8 and apply force, causing the connecting part 217 to break. This allows the hemostatic clip 8 to detach from the storage slot 215 and be removed from the rotating end cap 21. The hemostatic clip 8 is then delivered to the large wound to clamp the corresponding position. Repeating the above operation allows multiple hemostatic clips 8 to be removed sequentially and clamped at corresponding positions on the large wound until the entire large wound is closed.

[0079] Thus, the carrier cap 2 is integrally formed with multiple hemostatic clips 8, forming a continuous hemostatic clip. By inserting the matching forceps 4 once through the instrument channel 1a of the endoscope 1, multiple hemostatic clips 8 can be continuously released and used. The matching forceps 4 does not need to repeatedly enter and exit the instrument channel 1a. Moreover, the hemostatic clips 8 are integrally formed inside the rotating end cap 21 through the force-breakable connecting part 217. Before use, there is no need to install the hemostatic clips 8 to the rotating end cap 21. All of these can greatly improve the convenience of operation and shorten the operation time. The force-breakable connecting part 217 also makes it easy to remove the hemostatic clips 8.

[0080] Furthermore, compared to related technologies where the hemostatic device can only release one hemostatic clip at a time through the endoscopic instrument channel, requiring frequent replacement of disposable hemostatic devices when dealing with large wounds, this not only increases patient suffering but also leads to greater consumption of surgical instruments, increasing the burden on patients. The hemostatic device provided in the above embodiments of this application can meet the hemostatic needs of large wounds with a single set of hemostatic clips, and with the forceps 4, there is no need to repeatedly enter and exit the instrument channel 1a, which helps to reduce patient suffering and burden.

[0081] In the above-mentioned use, a large wound is closed by using multiple hemostatic clips 8 in the hemostatic device provided in the embodiment of this application. In fact, when the wound area is small and the number of wounds is large, forceps 4 can be used to close the multiple hemostatic clips 8 in the hemostatic device provided in the embodiment of this application in sequence to achieve hemostasis of multiple wounds. When closing the wound, some or all of the hemostatic clips 8 can be flexibly used as needed. This application does not limit this.

[0082] In actual setup, the arrangement of the hemostatic clip 8 on the rotating end cap 21 and the specific structure of the rotating end cap 21 are not limited, nor is the structure of the connecting part 217, as long as the weak structure connecting the hemostatic clip 8 and the rotating end cap 21 can be broken when force is applied to the hemostatic clip 8.

[0083] In this embodiment, as Figure 8 As shown, the inner peripheral wall of the rotating end cap 21 is provided with a support platform 214. The support platform 214 has a plurality of storage slots 215 extending axially. The plurality of hemostatic clips 8 are at least partially located in the plurality of storage slots 215. The end of the hemostatic clip 8 is closer to the distal end of the rotating end cap 21 than the root end. The connecting part 217 is a protrusion provided on the side wall of the storage slot 215. The root end of the hemostatic clip 8 is the end where its two clip arms 83 are connected to each other, and the end is the end opposite in direction to the "root end", that is, the free end of the clip arm 83.

[0084] In this way, the rotating end cap 21 can be rotated so that the storage slot 215 is aligned with the instrument channel 1a of the endoscope 1. When the forceps 4 extends from the instrument channel 1a of the endoscope 1, it can enter the storage slot 215, clamp and apply simple force to the hemostatic clip 8, causing the protruding connecting part 217 to break, thus making it easier to remove the hemostatic clip 8. The forceps 4 can also subsequently push the hemostatic clip 8 out of the rotating end cap 21 through the storage slot 215, making it easier to deliver the hemostatic clip 8 to a large wound. In addition, the hemostatic clip 8 being located in the storage slot 215 makes the connection between the hemostatic clip 8 and the rotating end cap 21 more secure, and the structure of the hemostatic device more compact.

[0085] Specifically, such as Figure 9 As shown, the end of the hemostatic clip 8 extends out of the storage groove 215, which allows the storage groove 215 to be made smaller, thereby making the volume of the carrier stage 214 smaller, so as to maximize the space of the working port of the rotating end cap 21, ensuring that the endoscope 1 can perform its functions such as examination and treatment smoothly. At the same time, it also makes the structure of the carrier cap 2 more compact.

[0086] Furthermore, such as Figure 9 and Figure 13As shown, the hemostatic clip 8 has two clamping arms 83 and two connecting parts 217. Each of the two opposing sidewalls of the clamping arms 83 has a clamping protrusion 82, which engages with the clamping forceps 4 to achieve clamping. The two connecting parts 217 are respectively connected to the opposing sidewalls of the two clamping arms 83 and are located on the side of the clamping protrusion 82 near the end of the clamping arm 83. This makes the connection between the hemostatic clip 8 and the rotating end cap 21 more stable, the connection structure simpler, and facilitates clamping by the clamping forceps 4.

[0087] Furthermore, multiple storage slots 215 are distributed circumferentially around the rotating end cap 21. Thus, rotating the rotating end cap 21 causes each storage slot 215 to rotate sequentially to align with the instrument channel 1a of the endoscope 1, which in turn causes each hemostatic clip 8 to rotate sequentially to the aligned position. This allows the forceps 4 to remove each hemostatic clip 8 sequentially from each storage slot 215. It also allows for convenient and precise control of the rotation angle of the rotating end cap 21 during each hemostatic clip removal operation, ensuring smooth operation and making the carrier cap 2 more compact.

[0088] Furthermore, such as Figure 8 and Figure 9 As shown, the storage slot 215 can be cylindrical, and the two connecting parts 217 are symmetrically arranged about the axis of the storage slot 215. In this way, the hemostatic clamp 8 is located in the middle of the storage slot 215, providing a large space for clamping operations when used with the forceps 4.

[0089] Furthermore, the distal end face of the support platform 214 is flush with the distal end face of the rotating end cap 21, and the proximal end face of the support platform 214 is perpendicular to the axis of the rotating end cap 21. In use, the distal end face of the endoscope 1 can abut against the proximal end face of the support platform 214, resulting in high installation accuracy. Moreover, after the forceps 4 are delivered to the distal end of the tip 12 through the instrument channel 1a of the endoscope 1, they can be directly inserted into the storage slot 215 to clamp and remove the hemostatic clip 8. After clamping the hemostatic clip 8 with the forceps 4, the hemostatic clip 8 can also be directly delivered out of the rotating end cap 21, making the operation more convenient.

[0090] Furthermore, the inner wall of the support stage 214 is provided with at least one clearance groove 219, which extends through the support stage 214 axially. The clearance groove 219 reduces the space occupied by the support stage 214 in the working port of the rotating end cap 21, making the area of ​​the working port as large as possible, thereby further ensuring the smooth functioning of the endoscope 1 and making the structure of the carrier cap 2 more compact.

[0091] In actual setup, the specific structure of the hemostatic clip 8 and the matching forceps 4 is not limited, as long as the matching forceps 4 can cooperate with the hemostatic clip 8 to perform pick-and-place operations.

[0092] In the embodiments provided in this application, such as Figure 13As shown, the hemostatic clip 8 has two clamping arms 83, each with a latching part 81 at its end and clamping protrusions 82 on its opposite sidewalls. As previously described, the clamping forceps 4 includes a drive handle, a flexible tube 41, and a forceps head 42. The forceps head 42 has two opening and closing clamping arms 421, with clamping grooves 422 on the opposite sidewalls of each arm. The two clamping grooves 422 can engage with the two clamping protrusions 82 respectively, allowing the clamping forceps 4 to clamp and apply force to the hemostatic clip 8. Under the action of the two clamping arms 421, the two latching parts 81 can engage, closing the hemostatic clip 8.

[0093] In use, the forceps head 42 can be first inserted into the distal end of the instrument channel 1a of the endoscope 1, and then... Figure 2 and Figure 6 As shown, the forceps head 42 extends out of the instrument channel 1a and enters the storage slot 215. Two forceps arms 421 clamp the hemostatic clip 8. The two clamping slots 422 and the two clamping protrusions 82 of the hemostatic clip 8 engage. Operating the drive handle applies force to the hemostatic clip 8. Specifically, the two forceps arms 421 can be controlled to move closer together, causing the two clamping arms 83 to move closer together, thus breaking the two connecting parts 217 between the hemostatic clip 8 and the rotating end cap 21, as... Figure 3 and Figure 7 As shown, remove the hemostatic clip 8 from the storage slot 215, and as indicated... Figure 4 The hemostatic clip 8 is fed out of the rotating end cap 21 via the storage slot 215. When the hemostatic clip 8 reaches the position of the large wound, the two clamp arms 421 are controlled to close, so that the two latching parts 81 are engaged, thereby clamping the corresponding position of the large wound with the hemostatic clip 8. Then, force is applied to the two clamp arms 421, so that the hemostatic clip 8 can be dislodged from the mating clamp 4, thus completing the release of the hemostatic clip 8.

[0094] In this way, when used in conjunction with forceps 4 and hemostatic clip 8, the hemostatic clip 8 can be removed and placed accurately and quickly.

[0095] Furthermore, storage slot 215 can be as follows: Figure 6The axis shown is parallel to the axis of the rotating end cap 21, so that the clamp 4 can be directly inserted into the storage slot 215 opposite the instrument channel 1a to retrieve the hemostatic clip 8. Of course, the storage slot 215 can also be configured such that its axis is inclined relative to the axis of the rotating end cap 21, and this application does not limit this. When the axis of the storage slot 215 is tilted, the clamping forceps 4 may also include a bending drive tendon. The distal end of the bending drive tendon is connected to the distal end of the flexible tube 41, and the proximal end passes through the flexible tube 41 and is connected to the drive handle. The drive handle is configured to be able to bend the distal end of the flexible tube 41 by pulling the bending drive tendon, thereby causing the forceps head 42 to bend. In this way, the flexible tube 41 has a degree of freedom of bending. After the clamping forceps 4 extends out of the instrument channel 1a, the orientation of the forceps head 42 can be adjusted as needed to align it with the storage slot 215, so as to more conveniently remove the hemostatic clip 8. During the process of sending the hemostatic clip 8 from the rotating end cap 21 to the large wound, the orientation of the hemostatic clip 8 held by the forceps head 42 can also be flexibly adjusted to align it with the position on the large wound where the hemostatic clip 8 should be placed, so as to close the large wound more flexibly and accurately.

[0096] In addition, the forceps 4 can be configured to have the biopsy function of biopsy forceps, so that when the forceps 4 is used under the instrument channel 1a of the endoscope 1, the surgical operation such as pathological specimen sampling performed by the biopsy forceps can be completed first by using the forceps 4, and then the hemostatic clip 8 can be taken by using the forceps 4 to perform hemostasis, further reducing the types of surgical instruments used in the endoscopic surgery.

[0097] In actual setup, the specific structure of carrier cap 2 is not limited.

[0098] In this embodiment, please refer to Figure 8 and Figure 9 It is understood that the carrier cap 2 also includes an auxiliary end cap 23, which is rotatably fitted onto the distal end of the endoscope 1, outside the fixed end cap 22, and is fixedly fitted onto the rotating end cap 21. For example... Figure 11 As shown, the outer peripheral wall of the rotating end cap 21 is provided with a first path groove 211 and a second path groove 212 extending circumferentially. Figure 10 As shown, the fixed end cap 22 includes a lens ring 222, which is fixedly sleeved on the endoscope 1 and has a first boss 221 extending distally along the axial direction. The first boss 221 has a first channel 223 and a second channel 224 extending substantially along the axial direction. Figure 12 As shown, the auxiliary end cap 23 is provided with a third channel 231 and a fourth channel 232 extending approximately axially. There are two rotary drive tendons 3. The distal ends of the two rotary drive tendons 3 are fixed to the rotary end cap 21. The two rotary drive tendons 3 are respectively wound in the first path groove 211 and the second path groove 212 in opposite directions. The proximal ends of the two rotary drive tendons 3 pass through the first channel 223 and the second channel 224, and respectively pass through the third channel 231 and the fourth channel 232.

[0099] In this way, pulling one of the rotation drive tendons 3 can control the rotation end cap 21 to rotate forward, and pulling the other rotation drive tendon 3 can control the rotation end cap 21 to rotate backward, so as to more flexibly adjust the position of each hemostatic clip 8 in the circumferential direction of the endoscope 1. Moreover, the auxiliary end cap 23 can surround the rotation end cap 21 and the fixed end cap 22 and rotate synchronously with the rotation end cap 21, so that the internal structure is not exposed, thus protecting the internal structure. The two rotation drive tendons 3 pass through the rotation end cap 21, the fixed end cap 22 and the auxiliary end cap 23 in sequence, and extend to the proximal end and connect with the drive component 6 through the guide tube 5, which also makes the structure of the entire hemostatic device more compact.

[0100] Specifically, such as Figure 11 As shown, the rotating end cap 21 includes a main body portion and a second boss 213 extending axially proximal to the main body portion. Figure 9 As shown, the mirror ring 222 of the fixed end cap 22 specifically abuts against the proximal end face of the main body. The second boss 213 is located outside the mirror ring 222, and the first boss 221 is located outside the main body. The second boss 213, mirror ring 222, and first boss 221 form a fit. The outer peripheral wall of the rotating end cap 21 is provided with a second annular step. The step surface of the second annular step faces the proximal end, and the distal end face of the auxiliary end cap 23 abuts against the step surface of the second annular step. The second annular step can position the auxiliary end cap 23 on the rotating end cap 21, thereby improving the installation accuracy.

[0101] Furthermore, such as Figure 11 As shown, the ends of the first path groove 211 and the second path groove 212 are respectively formed with fixing grooves 216. The fixing grooves 216 can specifically penetrate into the interior of the second boss 213 of the rotating end cap 21. The distal ends of the two rotating drive tendons 3 are respectively fixed to the two fixing grooves 216 by the first fixing block, so that the connection between the rotating drive tendon 3 and the rotating end cap 21 is more stable.

[0102] Please refer to this as well. Figures 14-19 , Figure 14 This is a schematic diagram of the rotating knob in the hemostasis device provided in the embodiments of this application; Figure 15 This is a schematic diagram of the structure of the button seat in the hemostatic device provided in the embodiments of this application; Figure 16 for Figure 15 Axial sectional view; Figure 17 This is an axial cross-sectional view of the rotary knob in the hemostasis device provided in this application after it is installed on the knob seat; Figure 18 An axial cross-sectional view of the driving component and locking device in the unlocked state in the hemostasis device provided in the embodiments of this application; Figure 19 This is an axial cross-sectional view of the driving component and locking device in the locked state of the hemostatic device provided in the embodiments of this application.

[0103] In actual setup, the structure of drive component 6 is not limited.

[0104] In the embodiments of this application, such as Figures 14 to 17 As shown, the driving component 6 includes a rotary knob 61 and a knob base 62. The knob base 62 has a button groove 623, and the rotary knob 61 has a rotating protrusion 611, which is rotatably inserted into the button groove 623. The side wall of the knob base 62 has a fifth channel 621 and a sixth channel 622 respectively communicating with the button groove 623. The outer peripheral wall of the rotating protrusion 611 has a third path groove 612 and a fourth path groove 613 extending circumferentially. The proximal ends of the two rotary driving tendons 3 enter the button groove 623 through the fifth channel 621 and the sixth channel 622 respectively, and are respectively wound and fixed in the third path groove 612 and the fourth path groove 613 in opposite directions.

[0105] By rotating the rotary knob 61 in the forward direction, one of the rotary drive tendons 3 can be pulled, causing the rotating end cap 21 to rotate clockwise; by rotating the rotary knob 61 in the reverse direction, the other rotary drive tendon 3 can be pulled, causing the rotating end cap 21 to rotate counterclockwise. In this way, the operation is relatively simple and convenient, and the rotation of the rotating end cap 21 can be precisely controlled.

[0106] Furthermore, such as Figure 18 and Figure 19 As shown, the hemostatic device also includes a locking device 7. The locking device 7 includes a locking knob 71 and a spring 72. The bottom of the button groove 623 has a knob groove 624, the inner diameter of which is smaller than the inner diameter of the button groove 623. The inner circumferential wall of the knob groove 624 has an internal thread. The outer circumferential wall of the locking knob 71 has an external thread. The locking knob 71 is rotatably inserted through the rotary knob 61 and its end is threaded into the knob groove 624. One end of the spring 72 is fixedly connected to the end of the locking knob 71, and the other end of the spring 72 abuts against the bottom of the knob groove 624. Rotating the locking knob 71 causes it to move axially, which can press and lock the rotary knob 61.

[0107] In use, rotating the locking knob 71 forward moves it axially towards the bottom of the knob groove 624, compressing the spring 72. This causes the locking knob 71 to press against the rotary dial 61, locking it and keeping the rotating cap 21 in its current position. Rotating the locking knob 71 in the opposite direction, under the elastic restoring force of the spring 72, allows it to move further away from the bottom of the knob groove 624, releasing the pressure on the rotary dial 61 and unlocking it. The position of the hemostatic clip 8 on the rotating cap 21 can then be adjusted by rotating the rotary dial 61. Thus, rotating the locking knob 71 allows for stable locking of the drive component 6, ensuring smooth operation of the clamp 4 in placing and removing the hemostatic clips. It also allows for quick unlocking of the drive component 6, enabling rapid adjustment of the next hemostatic clip 8 to the correct position. The entire locking and unlocking process is simple and convenient.

[0108] In this embodiment, the proximal ends of the two rotational drive tendons 3 are respectively as follows: Figure 18 As shown, the second fixing block 31 is fixed to the fixing groove formed in the third path groove 612 and the fourth path groove 613, making the connection between the rotary drive tendon 3 and the rotary knob 61 more stable.

[0109] like Figure 15 As shown, the button seat 62 is also provided with connecting ears 625 on both sides. In use, the two connecting ears 625 can be fixed to the endoscope 1 using medical ties to complete the installation of the drive component 6 on the endoscope 1.

[0110] The end face of the locking knob 71 is as follows Figure 18 The spring 72 is specifically fixed in the mounting groove 711. The spring 72 is coaxially provided with a mounting groove 711.

[0111] The working principle of the hemostatic device provided in the embodiments of this application is explained below with reference to the accompanying drawings:

[0112] During installation, the operator attaches the carrier cap 2 of the hemostatic device to the head end 12 of the endoscope 1, uses medical tape to restrain the guide tube 5 to the outside of the endoscope 1, and uses medical ties to fix the drive component 6 and the locking device 7 as a whole to the operating part 13 of the endoscope 1 through the two connecting ears 625 of the button seat 62.

[0113] In use, the operator controls the endoscope 1 to enter the human body, and the carrier cap 2 moves with the endoscope 1. After approaching the target position, surgical instruments are used to perform surgical operations such as lesion tissue resection. After lesion tissue resection, if the wound area left after the resection is large, the hemostatic device provided in this application embodiment can be used for hemostasis.

[0114] First, rotate the locking knob 71 in the reverse direction to unlock the drive component 6; then, rotate the rotary knob 61 in either the forward or reverse direction to pull one of the rotary drive tendons 3, causing the rotating end cap 21 to rotate forward or backward, so that one of the multiple storage slots 215 on the support platform 214 of the rotating end cap 21 rotates to the alignment position; next, rotate the locking knob 71 in the forward direction to lock the drive component 6; then, through the instrument channel 1a of the endoscope 1, send the forceps head 42 of the fitting forceps 4 to the distal end of the instrument channel 1a, and then operate the drive handle of the fitting forceps 4 to extend the forceps head 42 out of the instrument channel 1a and into the... Figure 2 and Figure 6 As shown, the clamp is inserted into the storage slot 215 and force is applied to the hemostatic clip 8, causing the clamping grooves 422 of the two clamp arms 421 to engage with the clamping protrusions 82 on the two clamp arms 84 of the hemostatic clip 8, thereby clamping and applying simple force to the hemostatic clip 8, causing the connecting parts 217 between the two sides of the hemostatic clip 8 and the rotating end cap 21 to break, thereby causing the hemostatic clip 8 to fall out of the storage slot 215 and be placed as shown. Figure 3 and Figure 7 Remove from the rotating end cap 21 as shown, then proceed as follows Figure 4 The push-fit clamp 4 is shown to extend the hemostatic clip 8 through the storage slot 215 to the large wound, and the two latches 81 on the hemostatic clip 8 are controlled to engage, so that the hemostatic clip 8 clamps the corresponding position of the large wound.

[0115] Repeat the above operation, according to the number of hemostatic clips 8 required for hemostasis of the large wound, control the corresponding number of hemostatic clips 8 to clamp the corresponding positions of the large wound in sequence until the entire large wound is clamped.

[0116] As can be seen, in the process of using the hemostatic device provided in this application embodiment for hemostasis of large wounds, only one insertion of the forceps 4 through the instrument channel 1a of the endoscope 1 is required to release multiple hemostatic clips 8. The forceps 4 does not need to repeatedly enter and exit the instrument channel 1a. Moreover, the hemostatic clips 8 are integrally formed in the rotating end cap 21 through the force-breakable connecting part 217. Before use, there is no need to install the hemostatic clips 8 to the rotating end cap 21. All of these can greatly improve the convenience of operation, shorten the operation time, and reduce the burden on doctors and patients. The force-breakable connecting part 217 also makes it easy to remove the hemostatic clips 8.

[0117] This document uses specific examples to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are only for the purpose of helping to understand the apparatus and core ideas of this application. It should be noted that those skilled in the art can make several improvements and modifications to this application without departing from the principles of this application, and these improvements and modifications also fall within the protection scope of the claims of this application.

Claims

1. A hemostatic device, characterized in that, The hemostatic device includes a carrier cap (2), a fitting forceps (4), a guide tube (5), a driving component (6), and multiple hemostatic clips (8): The carrier cap (2) includes a fixed end cap (22) and a rotating end cap (21). The fixed end cap (22) is fixedly sleeved on the distal end of the endoscope (1), and the rotating end cap (21) is rotatably sleeved on the distal end of the endoscope (1). Multiple hemostatic clips (8) are disposed inside the rotating end cap (21), and the hemostatic clips (8) are integrally connected to the rotating end cap (21) through at least one connecting part (217); The fitting forceps (4) are configured to extend into the rotating end cap (21) through the instrument channel (1a) of the endoscope (1), and to clamp and apply force to the hemostatic clip (8) to break the connecting part (217), thereby removing the hemostatic clip (8) from the rotating end cap (21), and to control the closure of the hemostatic clip (8); The driving component (6) is located at the proximal end of the endoscope (1). The rotating end cap (21) is connected to the driving component (6) via the rotating driving tendon (3). The guide tube (5) is located on the outer peripheral wall of the endoscope (1). The rotating driving tendon (3) passes through the fixed end cap (22) and the guide tube (5). The driving component (6) is configured to drive the rotating end cap (21) to rotate via the rotating driving tendon (3).

2. The hemostatic device according to claim 1, characterized in that, The inner peripheral wall of the rotating end cap (21) is provided with a support platform (214). The support platform (214) is provided with a plurality of storage slots (215) extending along the axial direction. The plurality of hemostatic clips (8) are at least partially located in the plurality of storage slots (215). The end of the hemostatic clip (8) is closer to the far end of the rotating end cap (21) than the root end. The connecting part (217) is a protrusion provided on the side wall of the storage slot (215).

3. The hemostatic device according to claim 2, characterized in that, The end of the hemostatic clip (8) extends out of the storage slot (215).

4. The hemostatic device according to claim 2, characterized in that, The hemostatic clip (8) has two clip arms (83) and two connecting parts (217); The two clamping arms (83) are respectively provided with clamping protrusions (82) on their opposite sidewalls. The clamping protrusions (82) are used to cooperate with the mating clamp (4) to achieve the clamping. The two connecting parts (217) are respectively connected to the opposite sidewalls of the two clamping arms (83), and are respectively located on the side of the two clamping protrusions (82) near the end of the clamping arms (83).

5. The hemostatic device according to claim 2, characterized in that, The plurality of storage slots (215) are distributed circumferentially along the rotating end cap (21).

6. The hemostatic device according to claim 2, characterized in that, The storage slot (215) is cylindrical, and the two connecting portions (217) are symmetrically arranged about the axis of the storage slot (215); and / or, The distal end face of the support platform (214) is flush with the distal end face of the rotating end cap (21), and the proximal end face of the support platform (214) is perpendicular to the axis of the rotating end cap (21); and / or, The inner sidewall of the support platform (214) is provided with at least one relief groove (219), which extends through the support platform (214) axially.

7. The hemostatic device according to any one of claims 1 to 6, characterized in that, The hemostatic clip (8) has two clip arms (83); The ends of the two clamping arms (83) are respectively provided with a buckle (81), and the opposite side walls are respectively provided with clamping protrusions (82). The clamping pliers (4) include a drive handle, a flexible tube (41) and a pliers head (42). The drive handle is connected to the pliers head (42) through the flexible tube (41). The pliers head (42) has two clamping arms (421) that can be opened and closed. The opposing sidewalls of the two clamping arms (421) are respectively provided with clamping grooves (422). The two clamping slots (422) can respectively engage with the two clamping protrusions (82) so that the clamping forceps (4) can clamp and apply force to the hemostatic clip (8); under the action of the two clamping arms (421), the two latching parts (81) can be fastened so that the hemostatic clip (8) is closed.

8. The hemostatic device according to any one of claims 1 to 6, characterized in that, The carrier cap (2) also includes an auxiliary end cap (23); The auxiliary end cap (23) is rotatably fitted onto the distal end of the endoscope (1) and outside the fixed end cap (22), and the auxiliary end cap (23) is fixedly fitted onto the rotating end cap (21). The outer peripheral wall of the rotating end cap (21) is provided with a first path groove (211) and a second path groove (212) extending in the circumferential direction; the fixed end cap (22) includes a mirror ring (222), which is fixedly sleeved on the endoscope (1) and is provided with a first boss (221) extending axially to the distal end, the first boss (221) being provided with a first channel (223) and a second channel (224) extending generally in the axial direction; the auxiliary end cap (23) is provided with a third channel (231) and a fourth channel (232) extending generally in the axial direction. There are two rotating drive tendons (3). The distal ends of the two rotating drive tendons (3) are fixed to the rotating end cap (21). The two rotating drive tendons (3) are respectively wound in the first path groove (211) and the second path groove (212) in opposite directions. The proximal ends of the two rotating drive tendons (3) pass through the first channel (223) and the second channel (224) respectively, and pass through the third channel (231) and the fourth channel (232) respectively.

9. The hemostatic device according to claim 8, characterized in that, The drive component (6) includes a rotary knob (61) and a knob base (62). The button base (62) has a button groove (623), and the rotary knob (61) has a rotating protrusion (611), which is rotatably inserted into the button groove (623). The side wall of the button seat (62) is provided with a fifth channel (621) and a sixth channel (622) respectively communicating with the button groove (623), and the outer peripheral wall of the rotating protrusion (611) is provided with a third path groove (612) and a fourth path groove (613) extending in the circumferential direction. The proximal ends of the two rotating drive tendons (3) enter the button slot (623) through the fifth channel (621) and the sixth channel (622) respectively, and are respectively wrapped and fixed in the third path slot (612) and the fourth path slot (613) in opposite directions.

10. The hemostatic device according to claim 9, characterized in that, The hemostatic device also includes a locking device (7); the locking device (7) includes a locking knob (71) and a spring (72); The bottom of the button groove (623) is provided with a knob groove (624), the inner diameter of the knob groove (624) is smaller than the inner diameter of the button groove (623), and the inner peripheral wall of the knob groove (624) is provided with an internal thread. The locking knob (71) has an external thread on its outer peripheral wall at the end. The locking knob (71) is rotatably inserted through the rotary knob (61) and its end is threaded into the knob groove (624). One end of the spring (72) is fixedly connected to the end of the locking knob (71), and the other end of the spring (72) abuts against the bottom of the knob groove (624). Rotating the locking knob (71) causes it to move axially, which can press and lock the rotary knob (61).

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