Resilient intestinal ligature lifting belt

Abstract

The present invention discloses a resilient intestinal ligation lifting belt, comprising a lifting belt body (1), a handle (2) and a molded part (3); a hollow cavity is provided in the lifting belt body and the handle, one end of the lifting belt body is connected to the handle and the hollow cavity is passed through, a straight molded part is movably inserted in the hollow cavity and extends outside the handle; a resilient part is formed at the other end of the lifting belt body, the resilient part is an open ring structure made of elastic material and can be straightened to form a straight tube structure when the molded part is inserted; a tightening part (13) is connected to one end of the resilient part, an inner concave locking part (14) is provided on the outer wall of the other end of the resilient part and is matched and buckled with the tightening part, so that the resilient part and the lifting belt body are unidirectionally locked and form a closed ring structure wrapped around the intestinal tube (4). The present invention realizes the encirclement of the intestinal tube through the resilient part that can automatically rebound, and realizes the unidirectional locking and pulling fixation of the closed ring structure, which is conducive to the full exposure of the surgical field in minimally invasive surgeries such as laparoscopy.

Description

Technical Field

[0001] The invention relates to a medical device, in particular to a resilient intestinal ligation lifting belt. Background Art

[0002] In abdominal surgery, in order to fully expose the surgical area and ensure that the surgical field of view is not blocked, it is often necessary to ligate and fix the intestinal tract and other body tissues beside the surgical area. With the continuous development of medical technology, most abdominal surgeries can be performed through minimally invasive methods. However, due to the small number of incisions in minimally invasive surgery, the traditional technology of using ligatures (or belts) to tie, knot, and fix the intestinal tract requires the use of multiple incisions. The knotting of ligatures is difficult and inefficient, and can no longer adapt to the current development of medical technology.

[0003] Chinese invention patent application CN202010204279.0 discloses an intestinal traction ligation device for laparoscopic surgery, including a ligation belt body, the outer wall of one side of the ligation belt body is bonded with thorns at equal distances, a groove is provided between two adjacent thorns on one side of the ligation belt body, a ligation seat is sleeved on one side of the outside of the ligation belt body, a connecting belt is bonded to the outer wall of one side of the ligation seat, a traction ring is bonded to the outer wall of one end of the connecting belt, and the outer wall of the traction ring is coated with a protective layer, a thorn slot is provided inside the ligation seat, the ligation belt body passes through the ligation seat and is embedded in the thorn slot, and anti-slip grooves are provided on both sides of the outside of the ligation seat at equal distances. The ligation device has the following shortcomings:

[0004] 1. Since the ligature belt body needs to be tightened and fixed with the ligature seat, there are convex thorns on the ligature belt body, which will cause secondary damage to the wound site during insertion, pulling and removal, and will cause secondary damage to the outer wall of the intestine or other internal organs during pulling.

[0005] 2. In the process of tightening the ligature, the free end of the ligature needs to be inserted into the thorn groove first, and then force is applied to both ends of the ligature to tighten it in a ring shape on the outside of the intestinal tube. At least three incisions (holes) are required and the cooperation of both hands is required to achieve this, which is inconvenient to operate and has low efficiency.

[0006] 3. Since the ligature is made of hot-melt material and cannot be absorbed by the body, it needs to be clamped and cauterized with an ultrasonic knife after the abdominal surgery. Otherwise, it will affect the normal body functions of the ligated parts such as the intestines. It not only increases the steps of the operation, but also because the belt is attached to the outer wall of the intestine, it may cause certain damage to the outer wall of the intestine during cauterization. Summary of the invention

[0007] The purpose of the present invention is to provide a resilient intestinal ligation lifting belt, which can encircle the intestine through a resilient part that can automatically rebound, and realize one-way locking and pulling fixation of a closed ring structure, which is beneficial to fully expose the surgical field in minimally invasive surgeries such as laparoscopy.

[0008] The present invention is achieved in that:

[0009] A resilient intestinal ligation lifting belt comprises a lifting belt body, a handle and a formed part; a hollow cavity is formed inside the lifting belt body and the handle, one end of the lifting belt body is connected to the handle and the hollow cavities of the two are connected, and the straight-line formed part can be movably inserted into the hollow cavities of the lifting belt body and the handle, and one end of the formed part extends to the outside of the handle; a rebound part is formed at the other end of the lifting belt body, and the rebound part is an open ring structure made of elastic material and can be straightened into a straight tube structure when the formed part is inserted; a tightening part is connected to one end of the rebound part, and an inwardly concave locking part is provided on the outer wall of the other end of the rebound part and extends to the lifting belt body, and the tightening part and the locking part can be matched and buckled, so that the rebound part and the lifting belt body are unidirectionally locked to form a closed ring structure surrounding the outside of the intestinal tube.

[0010] The rebound part includes an inner ring rebound wall and an outer ring rebound wall, and the inner ring rebound wall and the outer ring rebound wall are connected to form a hollow tubular structure with an integrated structure; the rebound directions of the inner ring rebound wall and the outer ring rebound wall are the same, and the elastic coefficient of the inner ring rebound wall is greater than the elastic coefficient of the outer ring rebound wall, so that the rebound part can curl into an open ring structure.

[0011] The tightening piece is a hook-shaped structure, and the hook body of the tightening piece can be matched and hooked onto the lifting belt body.

[0012] A positioning block is formed on the inner wall of the hook body of the tightening member, and the locking member extends in a straight line along the axial direction of the lifting belt body. The positioning block can move unidirectionally along the locking member and is matched and buckled on the locking member.

[0013] The locking piece is a slot structure formed by connecting a plurality of right-angled triangle slots in sequence, and the positioning block is a right-angled triangle structure matching the locking piece, so that the positioning block is engaged with one of the right-angled triangle slots of the locking piece for positioning.

[0014] The tightening member is arranged on the outer wall of the end of the rebound part, and the ends of the tightening member are overlapped on the inner ring rebound wall and the outer ring rebound wall respectively. When the rebound part curls and rebounds, the tightening member can be located on the side of the lifting belt body.

[0015] The lifting belt body, the rebound part, the tightening piece and the locking piece are an integrated structure.

[0016] The outer diameters of the lifting belt body and the rebound part are similar, both of which are 5-10 mm.

[0017] The length of the resilient intestinal ligation lifting belt is 40-60 cm, wherein the length of the resilient portion is 10-20 cm.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The present invention is provided with a rebound part made of rebound walls with different elastic coefficients, and can present a straightened and curled state through the movable insertion of formed parts such as steel wires, thereby ensuring that the rebound part can effectively wrap around the intestinal tube when curling and rebounding, without the need for manual wrapping operation, and the effectiveness of intestinal ligation is ensured by the cooperation of the tightening part and the locking part.

[0020] 2. The present invention is provided with a right-angled triangle locking piece and a positioning block, which can realize one-way sliding and limiting between the two, ensuring that the closed ring structure formed by the rebound part can reliably ligate the intestinal tract while preventing it from falling off when subjected to external force, thereby realizing intestinal traction and fixation during surgery, and further ensuring that the surgical field of view is not obstructed during the operation.

[0021] 3. Since the present invention adopts a closed-loop method with automatic rebound and one-way positioning, during operation, only one hand is required to push the tightening member to slide one-way along the locking member to achieve the tightening and positioning of the intestinal ligation operation, which can effectively improve the efficiency of intestinal ligation, greatly reduce the doctor's workload and the difficulty of surgical operation, and is conducive to the performance of minimally invasive surgeries such as laparoscopy.

[0022] 4. Since the present invention adopts the rebound part of elastic material and the concave groove-shaped locking part, there is no need to set a raised thorn-like structure on the surface of the lifting belt. During the insertion, removal, traction and other operations, the secondary damage to the wound, intestinal tract and other body tissues can be greatly reduced, which is beneficial to postoperative recovery and has high operational safety.

[0023] The present invention utilizes rebound walls with different elastic coefficients to realize automatic rebound of the rebound part, thereby achieving encirclement of the intestinal tract, and can complete unidirectional locking and traction fixation of the intestinal tract with one hand, and fully exposes the surgical field of view through reliable intestinal ligation, which is conducive to the safe and efficient performance of minimally invasive surgeries such as laparoscopy. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a front view of the resilient intestinal ligation lifting belt of the present invention (not curled and rebounded);

[0025] Figure 2 It is a front view of the resilient intestinal ligature lifting belt of the present invention (curling and rebounding);

[0026] Figure 3 It is an enlarged view of the one-way locking of the tightening member and the locking member in the resilient intestinal ligation lifting belt of the present invention;

[0027] Figure 4It is a schematic diagram of locking the lifting belt body in the resilient intestinal ligation lifting belt of the present invention.

[0028] In the figure, 1 is a lifting belt body, 11 is an inner ring rebound wall, 12 is an outer ring rebound wall, 13 is a tightening piece, 131 is a positioning block, 14 is a locking piece, 2 is a handle, 3 is a molding piece, and 4 is an intestinal tube. DETAILED DESCRIPTION

[0029] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0030] Please see attached Figure 1 A resilient intestinal ligation lifting belt comprises a lifting belt body 1, a handle 2 and a molded part 3; a hollow cavity is formed inside the lifting belt body 1 and the handle 2 to form a tubular sleeve structure, one end of the lifting belt body 1 is connected to the handle 2 and the hollow cavities of the two are connected, and the straight-line molded part 3 can be movably inserted in the hollow cavities of the lifting belt body 1 and the handle 2, and one end of the molded part 3 extends to the outside of the handle 2; a resilient part is formed at the other end of the lifting belt body 1, and the resilient part is an open ring structure made of elastic material and can be straightened into a straight tube structure when the molded part 3 is inserted, that is, When the forming piece 3 is inserted into the hollow cavity located in the rebound part, the curled rebound part is straightened under the action of the forming piece 3. Conversely, when the forming piece 3 is pulled outward and separated from the rebound part, the rebound part can restore the curled state under the rebound action of the elastic material. A tightening piece 13 is connected to one end of the rebound part, and an inwardly concave locking piece 14 is provided on the outer wall of the other end of the rebound part and extends to the lifting belt body 1. The tightening piece 13 and the locking piece 14 can match and buckle, so that the rebound part and the lifting belt body 1 are unidirectionally locked and form a closed ring structure surrounding the outside of the intestinal tube 4, thereby realizing the surrounding ligation of the intestinal tube.

[0031] Please see attached Figure 1 and attached Figure 2 The rebound part includes an inner ring rebound wall 11 and an outer ring rebound wall 12, which are connected to form a hollow tubular structure with an integral structure; the rebound directions of the inner ring rebound wall 11 and the outer ring rebound wall 12 are the same, and the elastic coefficient of the inner ring rebound wall 11 is greater than the elastic coefficient of the outer ring rebound wall 12, which is used to determine the direction of the rebound of the rebound part, ensuring that the rebound part can wrap around the intestinal tube 4 after the rebound, so that the rebound part can be curled into an open ring structure. Figure 2 It is a cross-sectional view perpendicular to the intestinal tube 4 , the inner ring rebound wall 11 with a larger elastic coefficient is located between the outer ring rebound wall 12 with a smaller elastic coefficient and the intestinal tube 4 , and the inner ring rebound wall 11 and the outer ring rebound wall 12 rebound synchronously into an open ring structure.

[0032] The tightening piece 13 is a hook-shaped structure, and the hook body of the tightening piece 13 can be matched and hooked onto the lifting belt body 1 to ensure the initial formation of a closed ring structure after the rebound portion curls and rebounds, that is, to achieve effective encirclement of the intestinal tube 4. The doctor can complete the hooking action of the tightening piece 13 with one hand using surgical instruments such as forceps, which is simple, convenient and safe to operate.

[0033] Please see attached Figure 1 A positioning block 131 is formed on the inner wall of the hook body of the tightening member 13, and the locking member 14 extends in a straight line along the axial direction of the lifting belt body 1. Since the hook body of the tightening member 13 is attached to the outer wall of the lifting belt body 1 through the rebound force of the rebound part, the positioning block 131 on the tightening member 13 can be pressed on the locking member 14, so that the positioning block 131 can move unidirectionally along the locking member 14 and match and buckle on the locking member 14, ensuring that the closed ring structure is tightened along the axial direction of the lifting belt body 1 to prevent loosening, that is, the intestinal tube 4 is ligated and fixed, so that it can be fixed in the surgical field. The long strip distribution of the locking member 14 can ensure that the tightening member 13 after rebound falls within the range of the locking member 14 and reserves a certain unidirectional tightening stroke range, which is convenient for the closing operation of the closed ring structure to adapt to the ligation of intestinal tubes of different sizes.

[0034] Please see attached Figure 3 and attached Figure 4 The locking piece 14 is a groove body structure composed of several right-angled triangular grooves connected in sequence, and the positioning block 131 is a right-angled triangular structure or a tongue plate structure matching the locking piece 14, so that the positioning block 131 is buckled and positioned with one of the right-angled triangular grooves of the locking piece 14, and the right-angled triangle hypotenuse of the locking piece 14 is used to guide and realize the movement of the positioning block 131 along the locking piece 14, and the right-angled side of the right-angled triangle is used to limit and realize the unidirectional movement of the positioning block 131 and the positioning and locking with one of the right-angled triangular grooves.

[0035] Please see attached Figure 1 and attached Figure 2 The tightening piece 13 is arranged on the outer wall of the end of the rebound part, and the two sides of the end of the tightening piece 13 are respectively overlapped on the inner ring rebound wall 11 and the outer ring rebound wall 12. During the curling and rebounding process of the rebound part, the tightening piece 13 can be located on the side of the lifting belt body 1 to avoid collision and interference between the tightening piece 13 and the lifting belt body 1, ensuring that the tightening piece 13 can be hooked on the lifting belt body 1.

[0036] The lifting belt body 1, the rebound part, the tightening member 13 and the locking member 14 are an integrated structure and can be manufactured by integral molding.

[0037] Preferably, the rebound part can be made of existing medical plastics, medical metals, medical silicone and other materials, or can be made of PLA (polylactic acid), PGA (polyglycolic acid), PGLA (PLA and PGA and synthesis), PCL (polycaprolactone), PDO (propylene glycol) and other biodegradable materials that can be absorbed by the human body, to ensure that the rebound part has good deformation ability. After the operation is completed, only the excess length of the lifting belt body 1 and the rebound part need to be cut off. The lifting belt body 1 and the tightening member 13 can also be made of biomaterials such as medical plastics, medical metals, medical silicone, PCL or PDO, which have a certain strength and are easy to insert and fix to the wound site. If the strength of the lifting belt body 1 is not high, a part of the molded part 3 can also be left in the lifting belt body 1 to improve the strength of other parts except the rebound part.

[0038] The length of the rebound part can be determined according to the size of the body tissue to be ligated during surgery, so that it can partially or completely surround the intestinal tract and other body tissues. The length of the rebound part is 10-20cm, preferably 20cm. The length of the lifting belt body 1 only needs to meet the connection needs between the rebound part inside the body and the handle 2 outside the body. Preferably, the total length of the lifting belt body 1 and the rebound part is 40-60cm, which is long enough to facilitate the intestinal ligation inside the abdominal cavity and the pulling operation outside the abdominal cavity during surgery. The outer diameter of the rebound part and the lifting belt body 1 is determined according to the size of the surgical wound. It is only necessary to ensure that the rebound part and the lifting belt body 1 can be inserted into the abdominal cavity from the wound. The outer diameters of the rebound part and the lifting belt body 1 are comparable, preferably 5-10mm, with a small caliber, which is convenient for insertion into the body through the wound, and the surrounding and tightening operations are convenient.

[0039] Preferably, the molded part 3 can be made of a material with a certain rigidity such as steel wire to ensure that the rebound part can be straightened and maintained in a straight tube state when inserted into the hollow cavity of the lifting belt body 1, so that it can be easily inserted into the abdominal cavity through the wound.

[0040] The method of using the resilient intestinal ligation lifting belt of the present invention is as follows:

[0041] Before the operation, the outer end of the lifting belt body 1 is fixed on the handle 2, the hollow cavity of the lifting belt body 1 is connected with the hollow cavity of the handle 2, and the molded part 3 is inserted into the lifting belt body 1 from the handle 2, and the curled rebound part is straightened by using the rigidity of the molded part 3, as shown in the attached figure. Figure 1 shown.

[0042] During the operation, the lifting belt body 1 is inserted into the abdominal cavity through the wound, so that the rebound part completely enters the abdominal cavity and the inner ring rebound wall 11 is located on the side of one or more intestinal tubes 4 that need to be ligated. The surfaces of the lifting belt body 1 and the rebound part are smooth, and the locking piece 14 adopts a concave structure, which can avoid secondary damage to the wound, the intestinal tube 4 and other organs in the abdominal cavity to the greatest extent. The molded part 3 is pulled out. Since the elastic coefficient of the inner ring rebound wall 11 is greater than the elastic coefficient of the outer ring rebound wall 12, when the rebound part curls and rebounds into an open ring structure, the inner ring rebound wall 11 can be located on the inner side of the open ring structure and surround the outside of the intestinal tube 4 that needs to be removed. As the rebound part curls and rebounds, the tightening piece 13 at one end of the rebound part also moves along the arc-shaped motion trajectory and rebounds close to the rebound part, that is, close to the lifting belt body 1, and forms an open ring structure with the lifting belt body 1, as shown in the attached Figure 2 As shown, the doctor can hook the tightening piece 13 at the end of the rebound part onto the lifting belt body 1 through surgical instruments such as forceps, thereby forming a closed ring structure that surrounds the intestinal tube 4. At the same time, the tightening piece 13 moves unidirectionally along the locking piece 14, so that the right-angled triangle positioning block 131 is clamped with one of the right-angled triangle grooves of the locking piece 14, and the right-angled short side of the positioning block 131 is against the right-angled short side of the right-angled triangle groove to prevent it from falling off. Figure 3 and attached Figure 4 The doctor can use surgical instruments such as forceps to push the tightening member 13 along the locking member 14 in one direction according to the size of the intestinal tube 4, and the pushing direction is the direction of reducing the diameter of the closed ring structure, as shown in the attached Figure 3 As shown by the arrow in the figure, the closed ring structure is reduced to a size that can effectively tighten and fix the intestinal tube 4.

[0043] After the intestinal tube 4 is tied and fixed, the intestinal tube 4 can be pulled by the lifting belt body 1 or the surgical instrument inserted into the abdominal cavity to achieve the positioning of the one or more ligated intestinal tubes 4, thereby fully exposing the surgical field, facilitating the operation, and the closed loop structure is removed synchronously with the intestinal tube 4. After the intestinal tube 4 is removed, the closed loop structure can be cut off from the lifting belt body 1 by a surgical instrument such as an ultrasonic scalpel, and the lifting belt body 1 is removed through the wound, and the closed loop structure is left on the intestinal tube 4 and removed through the wound together with the intestinal tube 4.

[0044] The above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A resilient intestinal ligation lifting belt, characterized by: The invention comprises a lifting strap body (1), a handle (2) and a molded part (3); a hollow cavity is formed inside the lifting strap body (1) and the handle (2); one end of the lifting strap body (1) is connected to the handle (2) so that the hollow cavities of the two are connected; a linear molded part (3) can be movably inserted into the hollow cavities of the lifting strap body (1) and the handle (2), and one end of the molded part (3) extends to the outside of the handle (2); the other end of the lifting strap body (1) is formed There is a rebound portion, which is an open ring structure made of elastic material and can be straightened to form a straight tube structure when the molded part (3) is inserted; one end of the rebound portion is connected to a tightening piece (13), and the other end of the rebound portion is provided with a concave locking piece (14) on the outer wall and extends to the lifting belt body (1), and the tightening piece (13) and the locking piece (14) can be matched and buckled, so that the rebound portion and the lifting belt body (1) are locked in one direction and form a closed ring structure surrounding the outside of the intestinal tube (4); The resilient portion comprises an inner ring resilient wall (11) and an outer ring resilient wall (12), the inner ring resilient wall (11) and the outer ring resilient wall (12) being connected to form a hollow tubular structure of an integral structure; the inner ring resilient wall (11) and the outer ring resilient wall (12) have the same resilient direction, and the elastic coefficient of the inner ring resilient wall (11) is greater than the elastic coefficient of the outer ring resilient wall (12), so that the resilient portion can be curled into an open ring structure.

2. The resilient intestinal ligation lifting belt according to claim 1 is characterized in that: The tightening piece (13) is a hook-shaped structure, and the hook body of the tightening piece (13) can be matched and hooked onto the lifting belt body (1).

3. The resilient intestinal ligation lifting belt according to claim 2 is characterized in that: A positioning block (131) is formed on the inner wall of the hook body of the tightening member (13); the locking member (14) extends in an axial straight line along the lifting belt body (1); the positioning block (131) can move unidirectionally along the locking member (14) and is matched and buckled on the locking member (14).

4. The resilient intestinal ligation lifting belt according to claim 3 is characterized by: The locking member (14) is a slot body structure formed by a plurality of right-angled triangular slots connected in sequence, and the positioning block (131) is a right-angled triangular structure matching the locking member (14), so that the positioning block (131) is engaged with one of the right-angled triangular slots of the locking member (14) for positioning.

5. The resilient intestinal ligation lifting belt according to claim 1 is characterized by: The tightening piece (13) is arranged on the outer wall of the end of the rebound portion, and the two sides of the end of the tightening piece (13) are respectively overlapped on the inner ring rebound wall (11) and the outer ring rebound wall (12). When the rebound portion curls and rebounds, the tightening piece (13) can be located on the side of the lifting belt body (1).

6. The resilient intestinal ligation lifting belt according to claim 1, 3 or 5, characterized in that: The lifting belt body (1), the rebound portion, the tightening piece (13) and the locking piece (14) are an integrated structure.

7. The resilient intestinal ligation lifting belt according to claim 1, 3 or 5, characterized in that: The outer diameters of the lifting belt body (1) and the rebound portion are similar, both being 5-10 mm.

8. The resilient intestinal ligation lifting belt according to claim 1 is characterized by: The length of the resilient intestinal ligation lifting belt is 40-60 cm, wherein the length of the resilient portion is 10-20 cm.

Images