CN113729818A

CN113729818A - Simple knotting forceps for laparoscope

Info

Publication number: CN113729818A
Application number: CN202111139101.3A
Authority: CN
Inventors: 黄侠鸣; 方冠; 陶崇林
Original assignee: First Affiliated Hospital of Wenzhou Medical University
Current assignee: First Affiliated Hospital of Wenzhou Medical University
Priority date: 2021-09-27
Filing date: 2021-09-27
Publication date: 2021-12-03

Abstract

The invention discloses a simple knotting forceps for a laparoscope, which adopts the technical scheme that: the movable pliers comprise a supporting component, a movable handle, an elastic contraction section, a joint section and movable pliers claws, wherein the elastic contraction section is movably mounted in the supporting component, one end of the elastic contraction section is connected with the movable handle, the other end of the elastic contraction section is movably connected with one end of the joint section, and the other end of the joint section is connected with the movable pliers claws. The supporting component comprises a fixed supporting pipe and a spiral pipe, the fixed supporting pipe is detachably connected with one end of the spiral pipe, the elastic contraction section comprises a movable rod and a compression spring, the joint section comprises a telescopic corrugated pipe and elastic ribs, the movable rod in the elastic contraction section can be driven to move through an operation movable handle, the elastic contraction section can be driven to be straightened or bent and stretched in a certain direction, certain plasticity and toughness are achieved, the movable pliers jaws are controlled to be opened or clamped tightly at the same time, the structure is simple, knotting is assisted, and the operation is simple and convenient, so that the knotting of the endoscope is simplified.

Description

Simple knotting forceps for laparoscope

Technical Field

The invention relates to the field of medical tools, in particular to a simple knotting forceps for a laparoscope.

Background

In the prior art, the laparoscopic knotting is a difficult operation in laparoscopic surgery, under the laparoscope, common and conventional endoscopic instruments such as an endoscopic needle holder and a vascular forceps are used for performing the laparoscopic knotting, certain difficulty exists in the conventional laparoscopic knotting, an operator needs to clamp one end of a suture first, then the end suture is wound on another instrument, the opposite-side suture end is clamped by the winding instrument, and finally the opposite-direction traction is performed to form a first knot, and then on the basis, the actions are repeatedly complained to finish the laparoscopic knotting. The key difficulty is in winding, and most operators are often trapped. For a surgeon, the surgeon generally needs to practice the operation with long and long time, so as to achieve a relatively fast speed, but even a senior physician who is wary, the satisfactory knotting speed and knotting effect are difficult to achieve due to the limitation of different operation conditions, for example, an operation area is not a plane, the position is deep, surrounding obstacles are more, a suture is shorter, the position of an operation hole and surgical instruments are mutually interfered, so that the operation progress can be influenced, the confidence of a surgeon is struck, even the surgeon cannot perform knotting, further, the surgeon performs an operation by transferring the abdomen, and unnecessary loss is caused to a patient.

Patent publication No. CN213489042U discloses knotting forceps for surgery, which comprises a supporting tube, wherein a traction rod is sleeved in the supporting tube, the lower end of the supporting tube is connected with a fixed forceps blade, and a holding part is arranged at the upper end of the supporting tube; a sliding groove is formed in the side wall of the supporting tube, and a sliding cover is installed on the sliding groove; one end of the sliding chute is provided with a movable clamp leaf at a position close to the fixed clamp leaf, the movable clamp leaf is in a fold line shape, one end of the movable clamp leaf is positioned in the supporting pipe and is hinged with the traction rod, the corner part of the movable clamp leaf is hinged with the supporting pipe, and the hinged part of the movable clamp leaf and the supporting pipe is abutted with the sliding cover; the upper part of the supporting tube is provided with a fixed sleeve, and the side walls of the two sides of the upper part of the fixed sleeve are symmetrically provided with upper hanging shafts; fixed cover middle part be provided with stay tube vertically butt board, meet through spring down between butt board and sliding closure, can solve the problem that the knot pincers knotted the in-process and waste time and energy, failed easily among the prior art, simple structure, easy operation are laborsaving, efficient. Although the tool saves the difficulty of manual operation to a certain extent, the movable head of the pliers cannot be contracted and bent, the winding is difficult, and the function of the tool can be further improved.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides the simple knotting forceps for the laparoscope, which has the advantages of simple structure, simple and convenient auxiliary knotting operation and simplification of the knotting of the laparoscope.

In order to achieve the purpose, the invention is realized by the following technical scheme: the simple knotting forceps for the laparoscope comprise a supporting component, a movable handle, an elastic contraction section, a joint section and a movable forceps jaw, wherein the elastic contraction section is movably mounted in the supporting component, one end of the elastic contraction section is connected with the movable handle, the other end of the elastic contraction section is movably connected with one end of the joint section, and the other end of the joint section is connected with the movable forceps jaw.

Preferably: the supporting component comprises a fixed supporting pipe and a spiral pipe, wherein one end of the fixed supporting pipe is provided with a connecting part, the other end of the fixed supporting pipe is detachably connected with one end of the spiral pipe, and the other end of the spiral pipe is rotatably connected with the joint section. After the operation is used, the fixed supporting tube and the spiral tube are designed to be detachable, the inside of the fixed supporting tube can be cleaned, and the tool can better keep clean and sanitary. The joint section can rotate, and when knotting and straightening, the joint section can be straightened without tension, so that the use range is enlarged.

Preferably: the elastic contraction section comprises a movable rod and a compression spring, one end of the movable rod is fixedly connected with a movable handle, the other end of the movable rod is connected with the joint section through a first pull ring, the compression spring is sleeved in the movable rod, and two ends of the compression spring are respectively located between the movable handle and the connecting portion of the fixed supporting tube. When in operation, the compression spring is pressed to drive the movable rod to move back and forth.

Preferably: the joint section comprises a telescopic corrugated pipe and an elastic rib, one end head of the telescopic corrugated pipe is provided with a connecting groove matched with the spiral pipe in a rotating mode, the other end head of the telescopic corrugated pipe is connected with the outside of the movable plier claw, the elastic rib is located in the telescopic corrugated pipe, one end of the elastic rib is connected with a first pull ring on the movable rod, and the other end of the elastic rib is connected with the inside of the movable plier claw. The elastic ribs are combined with the telescopic corrugated pipe, and the telescopic corrugated pipe can be straightened or bent and stretched in a certain direction by stretching the elastic ribs, so that the telescopic corrugated pipe has certain plasticity and toughness.

Preferably: the joint section further comprises a flexible iron wire, and the length of the flexible iron wire is larger than that of the elastic ribs. The design of flexible iron wire can strengthen the stability of joint section, prevents that the elasticity rib from using when fracture beyond a long time, and the joint drops.

Preferably: the movable pliers claw comprises a pliers shell, a stretching assembly and a pair of cross hinged pliers heads, the stretching assembly is movably connected inside the pliers shell and is respectively connected with the tails of the pair of pliers heads, the pair of pliers heads are driven to open or clamp through the stretching assembly, and the pliers heads are convenient and flexible to control and can be effectively matched for operation.

Preferably: the stretching assembly comprises a supporting plate, a pressure spring, a stretching rod and a pair of stretching blades, the supporting plate is fixed inside the caliper shell, the pressure spring is fixedly sleeved in the stretching rod and movably connected with the supporting plate through the pressure spring, a second pull ring is installed at one end of the stretching rod, the other end of the stretching rod is hinged to one end of each stretching blade, and the other end of each stretching blade is connected with the tail of the corresponding caliper head. The stretching rod is automatically stored with energy through the pressure spring when stretched, and after being loosened, the pressure spring drives the stretching rod to move so as to automatically open the tong head.

Preferably: the clamping surfaces of the pair of tong heads are respectively provided with the mutually meshed sawteeth, so that the friction force is increased, and the clamping effect is better.

Preferably: the fixed supporting tube and the spiral tube are detachably connected by adopting a threaded connection or a buckle connection.

Preferably: the movable handle is externally provided with an anti-skid material.

The invention has the following beneficial effects:

the movable handle can be operated to drive the movable rod in the elastic contraction section to move, so that the elastic contraction section can be driven to be straightened or bent and stretched in a certain direction, certain plasticity and toughness are achieved, the movable forceps jaws are controlled to be opened or clamped, the structure is simple, knotting assisting operation is simple and convenient, and the knotting of the endoscope is simplified.

The fixed supporting tube is detachable with the spiral tube, the inside of the fixed supporting tube can be cleaned, and the tool can better keep clean and sanitary. The joint section can rotate, and when knotting and straightening, the joint section can be straightened without tension, so that the use range is enlarged.

Drawings

FIG. 1 is a schematic view of knotting forceps of embodiment 1 of the present invention in a state where the compression spring is spread;

FIG. 2 is a schematic view showing the connection of a spiral pipe in embodiment 1 of the present invention;

FIG. 3 is a schematic structural view of a movable plier jaw in embodiment 1 of the invention;

FIG. 4 is a schematic view of knotter forceps of embodiment 2 of the present invention in a state where the compression spring is compressed;

FIG. 5 is a schematic view of the surface of a binding clip according to embodiment 3 of the present invention;

FIG. 6 is a schematic structural view of a knotting forceps in accordance with embodiment 4 of the present invention;

reference numerals: 1. fixing the supporting tube; 2. a spiral tube; 3. a connecting portion; 4. a movable handle; 5. a movable rod; 6. a compression spring; 7. a first pull ring; 8. a collapsible bellows; 9. an elastic rib; 10. a movable tong jaw; 11. a flexible iron wire; 12. a caliper shell; 13. a binding clip; 14. a support plate; 15. a pressure spring; 16. a stretch rod; 17. stretching the blade; 18. and (4) saw teeth.

Detailed Description

Example 1

As shown in figures 1-3, a simple knotting forceps for laparoscope comprises a supporting component, a movable handle 4, an elastic contraction section, a joint section and movable forceps jaws, wherein an anti-skid material is arranged outside the movable handle 4, the anti-skid material can be made of silica gel, the elastic contraction section is movably arranged in the supporting component, the movable handle 4 controls the contraction of the elastic contraction section, the supporting component comprises a fixed supporting tube 1 and a spiral tube 2, the fixed supporting tube 1 and the spiral tube 2 can be made of metal tubes, the length range is 20cm-30cm after the fixed supporting tube 1 and the spiral tube 2 are connected, the design range of the tube diameter is 4mm-8mm, one end of the fixed supporting tube 1 is fixedly provided with a connecting part 3, the other end of the fixed supporting tube 1 is detachably connected with one end of the spiral tube 2, the detachable connecting mode can adopt threaded connection, and the other end of the spiral tube 2 is rotatably connected with the telescopic corrugated tube, 360 rotations are possible but not disengaged. After the actual operation uses, fixed stay tube 1 can be dismantled with the design of spiral pipe 2, and inside also conveniently washs, and the instrument can be better keeps clean health, and the joint section can rotate, when tieing a knot and flare-outing, the joint section can tension-free flare-outing, has enlarged the user plane.

The elastic contraction section can drive the joint section to stretch, and the other end of the joint section is connected with the movable clamp claw. The elastic contraction section comprises a movable rod 5 and a compression spring 6, a movable handle 4 is fixedly installed at one end of the movable rod 5, the diameter design range of the movable rod 5 is 2-3 mm, the length range of the movable rod 5 is 35-40 cm, the length range of a joint section is 10-15 cm, the other end of the movable rod 5 is connected with an elastic rib 9 through a first pull ring 7, the compression spring 6 is sleeved in the movable rod 5, and two ends of the compression spring 6 are respectively located between the movable handle 4 and a connecting portion 3 of the fixed supporting tube 1. During operation, the movable handle 4 presses the compression spring 6 to drive the movable rod 5 to move.

The joint section includes scalable bellows 8 and elastic rib 9, and elastic rib 9 has certain elasticity, and 8 tip of scalable bellows are equipped with the spread groove with 2 normal running fit of spiral pipe, and both rotate and are connected, and 8 other tip of scalable bellows are connected with pincers shell 12, and elastic rib 9 is located flexible bellows, and elastic rib 9 one end is connected with first pull ring 7 on the movable rod 5, and the elastic rib 9 other end is connected with the second pull ring in pincers shell 12. The elastic ribs 9 are combined with the telescopic corrugated pipe 8, and the telescopic corrugated pipe 8 can be straightened or bent and stretched in a certain direction by stretching the elastic ribs 9, so that the telescopic corrugated pipe has certain plasticity and toughness.

The movable pliers jaw comprises a pliers shell 12, a stretching assembly and a pair of cross hinged pliers heads 13, wherein the stretching assembly is movably connected inside the pliers shell 12 and is respectively connected with the tails of the pair of pliers heads 13, the stretching assembly comprises a supporting plate 14, a pressure spring 15, a stretching rod 16 and a pair of stretching blades 17, the supporting plate 14 is fixed inside the pliers shell 12, the pressure spring 15 is fixedly sleeved inside the stretching rod 16 and is movably connected with the supporting plate 14 through the pressure spring 15, a second pull ring is installed at one end of the stretching rod 16 and can limit the stretching rod 16 to be separated from the supporting plate 14, the other end of the stretching rod 16 is hinged with the pair of stretching blades 17, the other end of each pair of stretching blades 17 is respectively connected with the tail of the corresponding pliers head 13, the stretching assembly drives the pair of pliers heads 13 to be opened or clamped, and the pliers heads 13 are convenient and flexible to control and can be effectively operated in a matched mode.

When compressing the compression spring 6 through the movable handle 4, drive the movable rod 5 and move simultaneously, the elasticity rib 9 can release elasticity owing to lost the tensile force for the elasticity bellows becomes crooked together, and simultaneously the inside pressure spring 15 of pincers shell 12 loses the tensile force, also can release elasticity and will stretch the pole 16 ejecting, thereby opens binding clip 13. On the contrary, when the compression spring 6 is released from the movable handle 4, the movable rod 5 returns, the movable rod 5 pulls the elastic rib 9 to tension the elastic rib, so that the telescopic corrugated pipe becomes straight together, meanwhile, the elastic rib 9 pulls the second pull ring, the second pull ring drives the stretching rod 16 to move, and the stretching rod 16 closes and clamps the alternately opened pliers heads 13.

The invention can drive the movable rod 5 in the elastic contraction section to move by operating the movable handle 4, can drive the elastic contraction section to straighten or bend and stretch in a certain direction, has certain plasticity and toughness, simultaneously controls the opening or clamping of the movable forceps jaws, has simple structure, is simple and convenient for auxiliary knotting operation, and simplifies the knotting of the endoscope.

During actual operation, a doctor uses a needle holder firstly, moves a needle to penetrate through an operation area needing suturing, clamps one end of a suture with a simple knotting forceps, then the simple knotting forceps can operate to bend a joint section, then uses the needle holder to penetrate through a curled hole at the front end of the simple knotting forceps, clamps the suture at the other end, and finally directly pulls and tensions two ends of the suture in opposite directions to form a first knot.

Example 2

As shown in fig. 4, the embodiment 2 has substantially the same structure as the embodiment 1, except that the joint section includes a telescopic bellows 8, an elastic rib 9 and a flexible iron wire 11, the telescopic bellows 8 can be made of metal, the length of the flexible iron wire 11 is greater than that of the elastic rib 9, the flexible iron wire 11 and the elastic rib 9 are both located in the telescopic bellows, one end of the flexible iron wire 11 and one end of the elastic rib 9 are both connected with the first pull ring 7 on the movable rod 5, the other end of the flexible iron wire 11 and the other end of the elastic rib 9 are both connected with the second pull ring in the caliper housing 12, the flexible iron wire 11 can be straightened after bending without deformation, the design of the flexible iron wire 11 is increased, the stability of the joint section can be enhanced, and the joint can be prevented from falling off when the elastic rib 9 is broken for a long time.

Examples 3,

As shown in fig. 5, the embodiment 3 has substantially the same structure as the embodiment 1, except that the clamping surfaces of the pair of binding clip 13 are both provided with the saw teeth 18 engaged with each other, so that the clamping effect is better due to the increased friction force, and the fixing support tube 1 is connected with the spiral tube 2 by a snap fit.

Examples 4,

As shown in fig. 6, the structure of embodiment 4 is substantially the same as that of embodiment 1, the joint section includes a telescopic bellows 8 and elastic ribs 9, except that the middle portion of the telescopic bellows 8 extends out after being wound counterclockwise, a plurality of movable buckles are uniformly arranged inside the telescopic bellows, the elastic ribs 9 are arranged inside the length direction of the telescopic bellows through the movable buckles, the movable buckles can limit the elastic ribs 9 in a certain direction, but do not fasten the elastic ribs, so as to perform more stable expansion and contraction, and when deformed, the elastic ribs can be kept to be straightened or bent in a certain direction better.

The above-mentioned embodiments are only used for explaining the inventive concept of the present invention, and do not limit the protection of the claims of the present invention, and any insubstantial modifications of the present invention using this concept shall fall within the protection scope of the present invention.

Claims

1. The utility model provides a simple and easy knotting forceps of peritoneoscope which characterized in that: the movable pliers comprise a supporting component, a movable handle, an elastic contraction section, a joint section and movable pliers claws, wherein the elastic contraction section is movably mounted in the supporting component, one end of the elastic contraction section is connected with the movable handle, the other end of the elastic contraction section is movably connected with one end of the joint section, and the other end of the joint section is connected with the movable pliers claws.

2. The laparoscopic plain knotter forceps according to claim 1, wherein: the supporting component comprises a fixed supporting pipe and a spiral pipe, wherein one end of the fixed supporting pipe is provided with a connecting part, the other end of the fixed supporting pipe is detachably connected with one end of the spiral pipe, and the other end of the spiral pipe is rotatably connected with the joint section.

3. The laparoscopic plain knotter forceps according to claim 2, wherein: the elastic contraction section comprises a movable rod and a compression spring, one end of the movable rod is fixedly connected with a movable handle, the other end of the movable rod is connected with the joint section through a first pull ring, the compression spring is sleeved in the movable rod, and two ends of the compression spring are respectively located between the movable handle and the connecting portion of the fixed supporting tube.

4. The laparoscopic plain knotter forceps according to claim 3, wherein: the joint section comprises a telescopic corrugated pipe and an elastic rib, one end head of the telescopic corrugated pipe is provided with a connecting groove matched with the spiral pipe in a rotating mode, the other end head of the telescopic corrugated pipe is connected with the outside of the movable plier claw, the elastic rib is located in the telescopic corrugated pipe, one end of the elastic rib is connected with a first pull ring on the movable rod, and the other end of the elastic rib is connected with the inside of the movable plier claw.

5. The laparoscopic simplified knotter forceps according to claim 1 or 4, wherein: the joint section further comprises a flexible iron wire, and the length of the flexible iron wire is larger than that of the elastic ribs.

6. The laparoscopic plain knot tying forceps according to any one of claims 1 to 4, wherein: the movable pliers claw comprises a pliers shell, a stretching assembly and a pair of cross hinged pliers heads, the stretching assembly is movably connected inside the pliers shell and is respectively connected with the tails of the pliers heads, and the stretching assembly drives the pliers heads to open or clamp.

7. The laparoscopic plain knotter forceps according to claim 6, wherein: the stretching assembly comprises a supporting plate, a pressure spring, a stretching rod and a pair of stretching blades, the supporting plate is fixed inside the caliper shell, the pressure spring is fixedly sleeved in the stretching rod and movably connected with the supporting plate through the pressure spring, a second pull ring is installed at one end of the stretching rod, the other end of the stretching rod is hinged to one end of each stretching blade, and the other end of each stretching blade is connected with the tail of the corresponding caliper head.

8. The laparoscopic plain knotter forceps of claim 7, wherein: the clamping surfaces of the pair of tong heads are respectively provided with saw teeth which are meshed with each other.

9. The laparoscopic plain knotter forceps according to claim 2, wherein: the fixed supporting tube and the spiral tube are detachably connected by adopting a threaded connection or a buckle connection.

10. The laparoscopic plain knotter forceps according to claim 1, wherein: the movable handle is externally provided with an anti-skid material.