A cutting-closer for mixed hemorrhoids

Abstract

The utility model provides a kind of cutting closer for mixed hemorrhoid, belong to surgical instrument technical field, its structure includes operating handle, main body extension, working end;Working end is constituted by double-shaft anastomosis clamping mechanism, double-shaft anastomosis clamping mechanism has double-shaft double-movement's clamping arm, two clamping arms are set to the rigid body with the same bending curvature of one arc line trend from end to front end to the same side;Two clamping arms are opened and separated or closed clamping by driving mechanism synchronous drive;One clamping arm is equipped with anastomosis nail row and cutting knife, another clamping arm is equipped with anastomosis nail seat and knife edge seat, two clamping arms rotate to close state: anastomosis nail row and anastomosis nail seat two are anastomosed, cutting knife and knife edge seat two are anastomosed.The utility model uses arc or elliptic arc upper clamping arm and lower clamping arm, for mixed hemorrhoid, can better fit perianal tissue, disposable to mixed hemorrhoid is carried out fast operation, it is favorable for the fast recovery of postoperative anal margin tissue.

Description

Technical Field

[0001] This utility model relates to the field of surgical instrument technology, specifically a cutting and closing device for mixed hemorrhoids. Background Technology

[0002] Traditional mixed hemorrhoid surgeries, such as external stripping and internal ligation, are effective in removing hemorrhoids, but these methods are highly invasive. The surgery requires the removal of a significant amount of perianal skin and mucous membrane tissue, resulting in severe postoperative pain. Excessive use of electrocautery can cause significant tissue burns, often requiring a long recovery period and impacting daily life and work. Furthermore, the open surgical incision increases the risk of infection, further increasing patient suffering and medical risks. Patients typically experience more than a month to regain normal bowel movements after surgery, during which time frequent dressing changes are necessary to prevent infection. There is also a risk of severe bleeding if the ligation sutures come loose.

[0003] Stapled hemorrhoidopexy (PPH) uses a stapler to circularly remove the hemorrhoidal mucosa, theoretically preserving the anal cushions and reducing the impact on the physiological function of the anal canal and rectum. However, existing PPH staplers have certain limitations. Their cutting and anastomosis positions are relatively fixed, making it difficult to precisely adapt to the complex morphology and location differences of mixed hemorrhoids in different patients. In practice, poor anastomosis placement may occur, leading to postoperative complications such as recurrence or anal canal stenosis. Furthermore, existing staplers cannot handle large external hemorrhoids; they can only reduce their size through suspension, not remove them, requiring further external stripping and internal ligation. Summary of the Invention

[0004] The technical objective of this invention is to address the shortcomings of existing technologies and provide a cutting and closing device for mixed hemorrhoids.

[0005] Because the condition of mixed hemorrhoids varies greatly from person to person, with different patients exhibiting different sizes, locations, and numbers of hemorrhoids, there is an urgent clinical need for a cutting and closing device that can precisely locate the hemorrhoids according to each patient's specific condition, perform accurate and conformal cutting and closure, reduce damage to normal tissue, and improve the success rate of surgery.

[0006] Due to the sensitive location of mixed hemorrhoid surgery, patients are extremely concerned about postoperative pain and recovery time. A cutting and closure device that reduces tissue damage during surgery, lowers postoperative pain, and shortens the recovery period can greatly improve the patient experience and increase patient acceptance of surgical treatment. The goal is to achieve rapid and precise cutting and closure to reduce intraoperative bleeding and postoperative edema, thereby alleviating patient suffering.

[0007] The technical solution of this utility model is implemented in the following way: a cutting and closing device for mixed hemorrhoids, the structure of which includes an operating handle, a main body extension, and a working end; The working end is composed of a dual-axis matching clamping mechanism. The dual-axis matching clamping mechanism has dual-axis double-moving clamping arms. Both clamping arms are set as rigid bodies with the same curvature from the end to the front end towards the same side. The two clamping arms are synchronously driven to open and close, or to separate or close, by a drive mechanism; one clamping arm is equipped with a row of matching staples and a cutting blade, and the other clamping arm is equipped with a matching staple seat and a cutting edge seat. The two clamping arms rotate to the closed state: the staple row and staple seat are engaged, and the cutting blade and blade seat are engaged.

[0008] The working end is composed of a dual-axis matching clamping mechanism, which has an upper clamping arm and a lower clamping arm; Both the upper and lower clamping arms are designed as rigid bodies with an arc-shaped curvature that extends from the end to the front towards the same side. The tail section of the upper clamping arm is provided with an upper rotating hinge shaft, and the tail section of the lower clamping arm is provided with a lower rotating hinge shaft. A drive seat is fixedly connected between the main body extension and the working end; The upper rotating hinge is hinged to the upper end of the drive seat, and the lower rotating hinge is hinged to the lower end of the drive seat. An upper hinge lug is provided on one side of the end of the upper clamping arm tail section, and a lower hinge lug is provided on one side of the end of the lower clamping arm tail section. The upper hinge has an upper hinge hole, and the lower hinge has a lower hinge hole. The upper hinge and the lower hinge are arranged opposite to each other, and the upper hinge hole and the lower hinge hole overlap. A drive shaft passes through the overlap. The upper hinge shaft, the lower hinge shaft, and the drive shaft are parallel; It also includes a drive mechanism, which consists of a force-applying handle and a drive rod; the force-applying handle drives the drive rod, and the drive rod drives the drive shaft; the force-applying handle drives the drive rod and drive shaft to move under the action of external force, and the upper and lower clamping arms of the dual-shaft matching clamping mechanism open and separate or close to clamp. The upper clamping arm is equipped with a row of staples and a cutting blade, while the lower clamping arm is equipped with a staple seat and a cutting edge seat. The staple row and staple seat are arranged opposite each other; the cutting blade and the blade holder are arranged opposite each other; When the upper and lower clamping arms are closed: the staple row and staple seat are engaged, and the cutting blade and blade holder are engaged.

[0009] The matching staples are configured along the curvature of the upper clamping arm; The staples row has at least two rows of staples, with staples in each row arranged at equal intervals and staggered between the two rows. The direction of the staples on the staples row is the same as the bending direction of the upper clamp arm. The staple holder is provided with staple grooves for staple suturing the target tissue, and the arrangement of the staple grooves corresponds one-to-one with the staples.

[0010] The cutting blade is positioned on the outer side of the arc edge of the staple row; the cutting edge of the cutting blade is configured along the curvature of the upper clamping arm; The knife edge seat is located on the outer side of the arc edge of the matching staple seat; the knife edge seat is positioned along the curvature of the lower clamp arm.

[0011] With the working end opening direction as the front side, the upper hinge hole is positioned before the upper rotating hinge shaft, and the lower hinge hole is positioned before the lower rotating hinge shaft, so as to obtain the clamping force of the dual-axis matching clamping mechanism.

[0012] The drive rod passes through the drive seat, and a fixed spring seat is provided inside the drive seat. A tension spring is sleeved on the drive rod between the spring seat and the drive shaft. When the grip is applied without any external force, the tension spring expands the distance between the spring seat and the drive shaft under elastic force, forcing the upper and lower clamping arms to open. When an external force is applied to the grip, the grip pulls the drive rod backward. The drive rod overcomes the elastic force of the tension spring, causing the drive shaft to pull backward. This drives the upper and lower clamping arms, which are in the open state, to rotate under the action of the upper and lower rotating hinges, respectively, achieving a closed engagement between the upper and lower clamping arms.

[0013] The closure between the upper and lower clamping arms is designed as a two-stage stroke: In the first stage of the stroke, the staple row and staple seat match and close, but the cutting blade and blade seat do not match and close. In the second stage of the stroke, the staple row and staple seat are kept in close contact, while the cutting blade and blade seat are not closed.

[0014] The opening and closing motion between the upper and lower clamping arms is set as a single-stage stroke: The staple row and staple seat separate, and the staples simultaneously detach from both the staple row and staple seat; The cutting blade and the blade holder are separate.

[0015] The upper hinge of the upper clamping arm and the lower hinge of the lower clamping arm are both configured as double-layer hinges.

[0016] The upper and lower clamping arms are bent using either a circular arc or an elliptical arc within a plane.

[0017] The beneficial effects of this utility model compared with the prior art are: This invention relates to a cutting and closure device for mixed hemorrhoids. It employs an upper and lower clamping arm in an arc or elliptical shape, allowing for better contact with the perianal tissue for various types of hemorrhoids, especially mixed hemorrhoids. This enables a one-time anastomosis and cutting of the mixed hemorrhoids, achieving rapid surgery. The arc-shaped anastomosis boundary also minimizes traction on the staples during the contraction and relaxation of perianal muscles, promoting rapid postoperative recovery of the perianal tissue. Furthermore, this invention improves surgical precision, reduces damage to surrounding tissues, lowers postoperative complications, and enhances overall surgical outcomes.

[0018] The dual-axis, dual-motion upper and lower clamping arms use a circular or elliptical arc-shaped anastomotic clamping mechanism. Their curvature follows the skin and muscle texture of the human anal margin, making them more anatomically compatible.

[0019] The dual-axis, dual-action anastomosis clamping mechanism can maintain parallel closure between the upper and lower clamping arms at the final stage of anastomosis. This avoids the situation where the jaws of traditional staplers close from proximal to distal, causing the mixed hemorrhoids to be squeezed forward.

[0020] Its anastomosis and incision direction result in a more aesthetically pleasing wound after healing, eliminating the need for secondary surgery.

[0021] This invention minimizes bleeding during the procedure and does not affect the elasticity of the perianal skin. The surgery is performed radially around the anus, aligning with the direction of anal sphincter muscle contraction.

[0022] This invention helps to protect the anal circumference to the greatest extent and avoid damage to the anal circumference.

[0023] During the anastomosis procedure, the surgical distance for damage to the perianal tissues should be kept short. Post-operatively, scarring between the mucosa and skin should be minimized.

[0024] The matching and cutting drive method of this utility model can be either manual drive or extended electric drive.

[0025] The double-row anastomotic staple design, with its staggered arrangement, ensures safe and effective suturing of the staples, and also guarantees rapid healing of the anastomotic wound with minimal damage during the anastomosis procedure.

[0026] The adoption of this utility model can completely replace the "external stripping and internal ligation" technique, and eliminates the need for the traditional "external stripping and internal ligation" technique.

[0027] The advantages of this utility model are: (1) Precise fit: The arc design with a 15-20 degree curvature combined with a 5 cm clamp length can closely fit the perianal tissue, reduce the traction and compression of normal tissue, improve the accuracy of the operation, and reduce the risk of damage.

[0028] (2) Advantages of cutting and anastomosis: The cutting blade ensures uniform cutting force and smooth cutting, and the reasonable layout of the anastomotic staples ensures firm anastomosis, which is conducive to postoperative wound healing and reduces complications such as bleeding, edema, and anastomotic stenosis.

[0029] (3) Ease of operation: The overall structure is ergonomically designed, making it easy to operate. Operators can control instruments more precisely, shorten the operation time, and improve the efficiency of the operation.

[0030] The present invention provides a cutting and closing device for mixed hemorrhoids that is reasonably designed, simple in structure, safe and reliable, easy to use and maintain, and has great potential for widespread application. Attached Figure Description

[0031] Appendix Figure 1 This is a top view of the structure of this utility model; Appendix Figure 2 This is a schematic diagram of the main view of the fit state structure of this utility model; Appendix Figure 3 This is a schematic diagram of the structure of the present invention in its open state from the main view. Appendix Figure 4 This is a schematic diagram of the structure of the biaxial matching clamping mechanism of this utility model; Appendix Figure 5 This is a schematic diagram of the structure of the cutting blade of this utility model; Appendix Figure 6 This is a schematic diagram of the main structure of the upper clamping arm of this utility model; Appendix Figure 7 This is a schematic diagram of the main structure of the matching pin row and the cutting blade of the upper clamping arm of this utility model; Appendix Figure 8 This is a schematic diagram of the matching nail seat and the tool seat of the lower clamping arm of this utility model; Appendix Figure 9 This is a schematic diagram of the structure of the lower clamping arm of this utility model; Appendix Figure 10 This is a partial cross-sectional structural schematic diagram of the present invention; Appendix Figure 11 This is a partial cross-sectional structural schematic diagram of the present invention; Appendix Figure 12 This is a schematic diagram of mixed hemorrhoids in the human anal tissue according to this utility model; Appendix Figure 13 This is a schematic diagram of the structure of this utility model in use; Appendix Figure 14 This is a schematic diagram of the state of the mixed hemorrhoids after anastomosis and cutting according to this utility model.

[0032] The markings in the attached diagram represent: 1. Operating handle; 2. Main body extension; 3. Working end. 4. Dual-axis matching clamping mechanism, 5. Upper arm clamp, 6. Lower arm clamp, 7. Upper hinge pin; 8. Lower hinge pin. 9. Upper hinge lug, 10. Lower hinge lug 11. Upper reamed hole; 12. Lower reamed hole. 13. Drive shaft 14. Drive mechanism; 15. Force-applying grip; 16. Drive rod. 17. Anastomotic staple row; 18. Anastomotic staple seat; 19. Anastomotic staple. 20. Cutting blade; 21. Blade holder; 21. Spring seat; 22. Tension spring; 23. Double hinge lug. 24. Anus; 25. Anal margin; 26. Mixed hemorrhoids; 27. Surgical anal retractor. 28. Drive unit; 29. ​​Handle. Detailed Implementation

[0033] The following is a detailed description of a cutting and closing device for mixed hemorrhoids according to the present invention, with reference to the accompanying drawings.

[0034] As shown in the attached figure, the present invention provides a cutting and closing device for mixed hemorrhoids, characterized in that it includes an operating handle, a main body extension, and a working end; The working end is composed of a dual-axis matching clamping mechanism. The dual-axis matching clamping mechanism has dual-axis double-moving clamping arms. Both clamping arms are set as rigid bodies with the same curvature from the end to the front end towards the same side. The two clamping arms are synchronously driven to open and close, or to separate or close, by a drive mechanism; one clamping arm is equipped with a row of matching staples and a cutting blade, and the other clamping arm is equipped with a matching staple seat and a cutting edge seat. The two clamping arms rotate to the closed state: the staple row and staple seat are engaged, and the cutting blade and blade seat are engaged.

[0035] The working end is composed of a dual-axis matching clamping mechanism, which has an upper clamping arm and a lower clamping arm; Both the upper and lower clamping arms are designed as rigid bodies with an arc-shaped curvature that extends from the end to the front towards the same side. The tail section of the upper clamping arm is provided with an upper rotating hinge shaft, and the tail section of the lower clamping arm is provided with a lower rotating hinge shaft. A drive seat is fixedly connected between the main body extension and the working end; The upper rotating hinge is hinged to the upper end of the drive seat, and the lower rotating hinge is hinged to the lower end of the drive seat. An upper hinge lug is provided on one side of the end of the upper clamping arm tail section, and a lower hinge lug is provided on one side of the end of the lower clamping arm tail section. The upper hinge has an upper hinge hole, and the lower hinge has a lower hinge hole. The upper hinge and the lower hinge are arranged opposite to each other, and the upper hinge hole and the lower hinge hole overlap. A drive shaft passes through the overlap. The upper hinge shaft, the lower hinge shaft, and the drive shaft are parallel; It also includes a drive mechanism, which consists of a force-applying handle and a drive rod; the force-applying handle drives the drive rod, and the drive rod drives the drive shaft; the force-applying handle drives the drive rod and drive shaft to move under the action of external force, and the upper and lower clamping arms of the dual-shaft matching clamping mechanism open and separate or close to clamp. The upper clamping arm is equipped with a row of staples and a cutting blade, while the lower clamping arm is equipped with a staple seat and a cutting edge seat. The staple row and staple seat are arranged opposite each other; the cutting blade and the blade holder are arranged opposite each other; When the upper and lower clamping arms are closed: the staple row and staple seat are engaged, and the cutting blade and blade holder are engaged.

[0036] The matching staples are configured along the curvature of the upper clamping arm; The staples row has at least two rows of staples, with staples in each row arranged at equal intervals and staggered between the two rows. The direction of the staples on the staples row is the same as the bending direction of the upper clamp arm. The staple holder is provided with staple grooves for staple suturing the target tissue, and the arrangement of the staple grooves corresponds one-to-one with the staples.

[0037] The cutting blade is positioned on the outer side of the arc edge of the staple row; the cutting edge of the cutting blade is configured along the curvature of the upper clamping arm; The knife edge seat is located on the outer side of the arc edge of the matching staple seat; the knife edge seat is positioned along the curvature of the lower clamp arm.

[0038] With the working end opening direction as the front side, the upper hinge hole is positioned before the upper rotating hinge shaft, and the lower hinge hole is positioned before the lower rotating hinge shaft, so as to obtain the clamping force of the dual-axis matching clamping mechanism.

[0039] The drive rod passes through the drive seat, and a fixed spring seat is provided inside the drive seat. A tension spring is sleeved on the drive rod between the spring seat and the drive shaft. When the grip is applied without any external force, the tension spring expands the distance between the spring seat and the drive shaft under elastic force, forcing the upper and lower clamping arms to open. When an external force is applied to the grip, the grip pulls the drive rod backward. The drive rod overcomes the elastic force of the tension spring, causing the drive shaft to pull backward. This drives the upper and lower clamping arms, which are in the open state, to rotate under the action of the upper and lower rotating hinges, respectively, achieving a closed engagement between the upper and lower clamping arms.

[0040] The closure between the upper and lower clamping arms is designed as a two-stage stroke: In the first stage of the stroke, the staple row and staple seat match and close, but the cutting blade and blade seat do not match and close. In the second stage of the stroke, the staple row and staple seat are kept in close contact, while the cutting blade and blade seat are not closed.

[0041] The opening and closing motion between the upper and lower clamping arms is set as a single-stage stroke: The staple row and staple seat separate, and the staples simultaneously detach from both the staple row and staple seat; The cutting blade and the blade holder are separate.

[0042] The upper hinge of the upper clamping arm and the lower hinge of the lower clamping arm are both configured as double-layer hinges.

[0043] The upper and lower clamping arms are bent using either a circular arc or an elliptical arc within a plane.

[0044] Before the surgical procedure, the anus is dilated and fixed using surgical retractors. The external and internal portions of the mixed hemorrhoids are first lifted or pulled outwards using tissue forceps. The operator then places the surgical device in place. Holding the handle, the upper and lower clamping arms initially open under the action of tension springs, inserting the opening into the root of the pulled-out mixed hemorrhoids. Applying external force to the handle, the device is then driven by a drive mechanism to quickly and instantly close the upper and lower clamping arms, anastomosing and cutting the perianal skin tissue at the root of the mixed hemorrhoids, causing the hemorrhoids to detach and fall off. This achieves both cutting and anastomosis for hemostasis. This procedure allows for the one-time clamping and removal of the mixed hemorrhoids, resulting in a smooth and intact perianal area and good healing post-operatively.

[0045] This invention minimizes surgical trauma while ensuring therapeutic efficacy, and allows for personalized procedures based on individual patient differences, thus adapting to the needs of different conditions.

[0046] This invention can improve surgical efficiency and reduce surgical procedures. In addition to cutting and closing functions, it can also integrate hemostasis function, achieving effective hemostasis while cutting and closing, reducing the risk of postoperative bleeding, and optimizing the surgical process.

Claims

1. A cutting and closing device for mixed hemorrhoids, characterized in that... Includes an operating handle, a main body extension, and a working end; The working end is composed of a dual-axis matching clamping mechanism. The dual-axis matching clamping mechanism has dual-axis double-moving clamping arms. Both clamping arms are set as rigid bodies with the same curvature from the end to the front end towards the same side. The two clamping arms are synchronously driven to open and close, or to separate or close, by a drive mechanism; one clamping arm is equipped with a row of matching staples and a cutting blade, and the other clamping arm is equipped with a matching staple seat and a cutting edge seat. The two clamping arms rotate to the closed state: the staple row and staple seat are engaged, and the cutting blade and blade seat are engaged.

2. A cutting and closing device for mixed hemorrhoids, characterized in that: Includes an operating handle, a main body extension, and a working end; The working end is composed of a dual-axis matching clamping mechanism, which has an upper clamping arm and a lower clamping arm; Both the upper and lower clamping arms are designed as rigid bodies with an arc-shaped curvature that extends from the end to the front towards the same side. The tail section of the upper clamping arm is provided with an upper rotating hinge shaft, and the tail section of the lower clamping arm is provided with a lower rotating hinge shaft. A drive seat is fixedly connected between the main body extension and the working end; The upper rotating hinge is hinged to the upper end of the drive seat, and the lower rotating hinge is hinged to the lower end of the drive seat. An upper hinge lug is provided on one side of the end of the upper clamping arm tail section, and a lower hinge lug is provided on one side of the end of the lower clamping arm tail section. The upper hinge has an upper hinge hole, and the lower hinge has a lower hinge hole. The upper hinge and the lower hinge are arranged opposite to each other, and the upper hinge hole and the lower hinge hole overlap. A drive shaft passes through the overlap. The upper hinge shaft, the lower hinge shaft, and the drive shaft are parallel; It also includes a drive mechanism, which consists of a force-applying handle and a drive rod; the force-applying handle drives the drive rod, and the drive rod drives the drive shaft; the force-applying handle drives the drive rod and drive shaft to move under the action of external force, and the upper and lower clamping arms of the dual-shaft matching clamping mechanism open and separate or close to clamp. The upper clamping arm is equipped with a row of staples and a cutting blade, while the lower clamping arm is equipped with a staple seat and a cutting edge seat. The staple row and staple seat are arranged opposite each other; the cutting blade and the blade holder are arranged opposite each other; When the upper and lower clamping arms are closed: the staple row and staple seat are engaged, and the cutting blade and blade holder are engaged.

3. The cutting and closing device for mixed hemorrhoids according to claim 2, characterized in that: The matching staples are configured along the curvature of the upper clamping arm; The staples row has at least two rows of staples, with staples in each row arranged at equal intervals and staggered between the two rows. The direction of the staples on the staples row is the same as the bending direction of the upper clamp arm. The staple holder is provided with staple grooves for staple suturing the target tissue, and the arrangement of the staple grooves corresponds one-to-one with the staples.

4. The cutting and closing device for mixed hemorrhoids according to claim 3, characterized in that: The cutting blade is positioned on the outer side of the arc edge of the staple row; the cutting edge of the cutting blade is configured along the curvature of the upper clamping arm; The knife edge seat is located on the outer side of the arc edge of the matching staple seat; the knife edge seat is positioned along the curvature of the lower clamp arm.

5. A cutting and closing device for mixed hemorrhoids according to claim 2, characterized in that: With the working end opening direction as the front side, the upper hinge hole is positioned before the upper rotating hinge shaft, and the lower hinge hole is positioned before the lower rotating hinge shaft, so as to obtain the clamping force of the dual-axis matching clamping mechanism.

6. A cutting and closing device for mixed hemorrhoids according to claim 5, characterized in that: The drive rod passes through the drive seat, and a fixed spring seat is provided inside the drive seat. A tension spring is sleeved on the drive rod between the spring seat and the drive shaft. When the grip is applied without any external force, the tension spring expands the distance between the spring seat and the drive shaft under elastic force, forcing the upper and lower clamping arms to open. When an external force is applied to the grip, the grip pulls the drive rod backward. The drive rod overcomes the elastic force of the tension spring, causing the drive shaft to pull backward. This drives the upper and lower clamping arms, which are in the open state, to rotate under the action of the upper and lower rotating hinges, respectively, achieving a closed engagement between the upper and lower clamping arms.

7. A cutting and closing device for mixed hemorrhoids according to claim 2, characterized in that: The closure between the upper and lower clamping arms is designed as a two-stage stroke: In the first stage of the stroke, the staple row and staple seat match and close, but the cutting blade and blade seat do not match and close. In the second stage of the stroke, the staple row and staple seat are kept in close contact, while the cutting blade and blade seat are not closed.

8. A cutting and closing device for mixed hemorrhoids according to claim 7, characterized in that: The opening and closing motion between the upper and lower clamping arms is set as a single-stage stroke: The staple row and staple seat separate, and the staples simultaneously detach from both the staple row and staple seat; The cutting blade and the blade holder are separate.

9. A cutting and closing device for mixed hemorrhoids according to claim 2, characterized in that: The upper hinge of the upper clamping arm and the lower hinge of the lower clamping arm are both configured as double-layer hinges.

10. A cutting and closing device for mixed hemorrhoids according to claim 2, characterized in that: The upper and lower clamping arms are bent using either a circular arc or an elliptical arc within a plane.

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