CN112168290A - Four-connecting-rod movable rotating mechanism and hemostatic forceps with same - Google Patents
Four-connecting-rod movable rotating mechanism and hemostatic forceps with same Download PDFInfo
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- CN112168290A CN112168290A CN202011035226.7A CN202011035226A CN112168290A CN 112168290 A CN112168290 A CN 112168290A CN 202011035226 A CN202011035226 A CN 202011035226A CN 112168290 A CN112168290 A CN 112168290A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/28—Surgical forceps
- A61B17/2812—Surgical forceps with a single pivotal connection
- A61B17/2816—Pivots
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/28—Surgical forceps
- A61B17/2812—Surgical forceps with a single pivotal connection
- A61B17/2841—Handles
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B2017/12004—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord for haemostasis, for prevention of bleeding
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Abstract
The invention discloses a four-connecting-rod movable rotating mechanism and a hemostatic forceps with the four-connecting-rod movable rotating mechanism. The four-connecting-rod movable rotating mechanism comprises a head part, a connecting sheet, a supporting frame, a lining, a pull rod, a plastic-coated spring tube and a rotating steel wire; the head part is fixedly connected with the connecting sheet; the support frame is riveted with the head; the connecting sheet is riveted with the pull rod; the support frame is in free movable rotary connection with the bush; the bush is welded with the plastic-coated spring tube; the pull rod is fixedly connected with the rotating steel wire; the front section of the rotating steel wire is inserted into the plastic-coated spring tube. The hemostatic forceps further comprise a handle rotating mechanism; the handle rotating mechanism comprises a sheath pipe interface, a fixed handle, a rotating handle core, a movable handle, a rotatable handle and a power supply clip; the four-connecting-rod movable rotating mechanism is connected with the handle rotating mechanism through a plastic-coated spring tube and a rotating steel wire. The hemostatic forceps can fix the handle and rotate the head singly, so that risks of injury of internal organ tissues, damage of combined-use endoscopes and the like caused by rotating the hemostatic forceps in an operation can be avoided.
Description
Technical Field
The invention belongs to the technical field of medical instruments, relates to a high-frequency hemostatic instrument, and particularly relates to a four-connecting-rod movable rotating mechanism and a hemostatic forceps with the four-connecting-rod movable rotating mechanism.
Background
In hospital medical procedures, localized treatment, including high frequency cutting hemostasis and the like, is typically performed on a target area within a patient. In the treatment process, hemostatic forceps are needed, and the bleeding point can be clamped accurately and accurately in a precise positioning mode, so that damage to surrounding healthy tissues is limited.
However, in practical applications, in the process of clamping the hemostatic forceps, since the tissues in the bleeding point region have mobility, for example, the internal organs and tissues in the respiratory system and the digestive system have mobility, the conventional hemostatic forceps with the four-bar structure either cannot rotate or only can rotate the entire hemostatic forceps including the spring tube and the forceps head by the handle, and the entire hemostatic forceps rotates, which may damage the internal organs and tissues and damage the endoscope used in combination.
Because the traditional hemostat with the four-bar structure cannot fix the handle to rotate the head, the risk of operation is caused. Therefore, there is an urgent need for a hemostatic forceps with a rotatable structure, which can avoid the risks of injury of internal organ tissues and damage of combined endoscope caused by rotating the hemostatic forceps during operation.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a four-bar movable rotating mechanism (rotatable positioning mechanism) and a hemostatic forceps with the four-bar movable rotating mechanism, wherein the four-bar movable rotating mechanism can be fixed on a handle, only rotates the head, and can avoid risks such as injury of internal organ tissues caused by rotating the hemostatic forceps in an operation, damage of an endoscope used in a combined mode and the like.
The purpose of the invention is realized by the following technical scheme:
the invention relates to a four-bar linkage movable rotating mechanism (rotatable positioning mechanism), which comprises a head part, a connecting sheet, a supporting frame, a lining, a pull rod, a plastic-coated spring tube and a rotating steel wire, wherein the head part is connected with the connecting sheet; the head part is fixedly connected with the connecting sheet; the support frame is riveted with the head; the connecting sheet is riveted with the pull rod; the support frame is in free movable rotary connection with the bush; the bush is welded with the plastic-coated spring tube; the pull rod is fixedly connected with the rotating steel wire; the front section of the rotating steel wire is inserted into the plastic-coated spring tube.
Furthermore, the head part comprises two symmetrically arranged forceps heads; the straight inner side of the front section of each of the two binding clip is provided with teeth, the middle bent part is provided with a rivet hole, and the rear end of each of the two binding clip is provided with a rivet which is connected with the binding clip into a whole; the support frame comprises two parallel rectangular clamping blocks, and each clamping block is provided with a rivet hole; the rear ends of the two clamping blocks are connected together, the rear end joint part of the two clamping blocks is a circular truncated cone, a connecting piece which can be connected with the bushing is arranged behind the circular truncated cone, the center of the connecting piece is a small circular block with a reduced diameter, and four fan-shaped elastic clamping pieces which are emitted outwards are arranged on the periphery of the small circular block; the radius of the four fan-shaped elastic clamping pieces is slightly smaller than that of the circular truncated cone of the support frame; the circular truncated cone and the small round block are both provided with central holes, and the pull rod penetrates through the central holes of the support frame (namely the central holes of the circular truncated cone and the small round block);
the rear ends of the two binding clip of the head are respectively riveted with the front ends of the two connecting sheets through rivets which are connected with the binding clip into a whole; the two binding clip of the head and the two clamping blocks of the support frame are connected in series by a rivet, and the two clamping blocks of the support frame are fixedly connected with the rivet by laser welding (namely, the two binding clip of the head are inserted between the two clamping blocks of the support frame, rivet holes on the two binding clip are aligned with the rivet holes on the two clamping blocks of the support frame, the rivet is inserted into the rivet holes, and the two clamping blocks of the support frame are fixedly connected with the rivet by laser welding);
the support frame is freely connected with the bushing after being inserted in an interference fit manner; the four elastic clamping pieces at the rear end of the support frame can be inserted into a circle of groove on the inner wall of the bushing; a gap is formed between the support frame and the bushing, and the support frame can rotate at the gap;
the lining is made of metal; the bushing is connected with the plastic-coated spring tube through laser welding; the plastic-coated spring tube comprises an inner metal spring tube layer and an outer plastic-coated layer;
the rear end of the connecting sheet is connected with the front end of the pull rod in series through a rivet; the rear end of the pull rod is welded with the front end of the rotating steel wire; the front section of the rotating steel wire is arranged in the plastic-coated spring tube.
Furthermore, the outside of the metal spring tube at the front section of the plastic-coated spring tube is not coated with plastic; the bush is sleeved outside the non-plastic-coated metal spring pipe at the front section of the plastic-coated spring pipe, and the bush and the metal spring pipe are connected by laser welding; the outside of the metal spring tube at the rear section of the plastic-coated spring tube is coated with plastic, namely the rear section of the plastic-coated spring tube consists of an outer plastic coated layer and an inner metal spring tube.
Furthermore, the four elastic clamping pieces at the rear end of the support frame are made of elastic stainless steel.
The invention relates to a hemostatic forceps with a four-bar movable rotating mechanism, which comprises the four-bar movable rotating mechanism (a rotatable positioning mechanism) and a handle rotating mechanism; the four-connecting-rod movable rotating mechanism is connected with the handle rotating mechanism through a plastic-coated spring tube and a rotating steel wire;
the handle rotating mechanism comprises an outer sheath pipe interface, a fixed handle, a rotating handle core, a movable handle, a rotatable handle and a power supply clip; the fixed handle is connected with a plastic-coated spring tube (namely an outer sheath tube) through an outer sheath tube interface: the front end of the outer sheath pipe interface is inserted into the inner part of the rear end of the plastic-coated spring pipe (the two are fixedly connected); the front section of the fixed handle is sleeved outside the rear end of the outer sheath pipe interface (the two are bonded and fixedly connected), and the middle section and the rear section of the fixed handle are internally provided with rotary handle cores; the rotatable handle is fixedly connected with the rotating handle core; the tail end of the rotating steel wire is fixedly connected with a power supply clip; the power supply clip is fixedly connected with the movable handle;
the movable handle is movably connected with the rotatable handle, and the movable handle can slide back and forth on the rotatable handle; the rotary steel wire penetrates through the central hole of the outer sheath pipe interface, the central hole of the rotary handle core and the central hole of the rotary handle in sequence.
Furthermore, the tail part of the rotatable handle is a circular handle, and the front part of the rotatable handle is a long pillar; the front end extension part of the rotatable handle is sleeved outside the rear section of the rotatable handle core, and the rotatable handle core and the rear section are fixedly connected (bonded); the front part of the long strut of the rotatable handle is a solid body, and a central hole is formed in the solid body at the front part; a long groove is arranged in the middle of the middle rear part of the long strut of the rotatable handle; the movable handle comprises two annular handles and a middle connecting part which are symmetrically arranged, and the middle connecting part comprises an upper part, a lower part and a middle hole; the long post of the rotatable handle passes through the central aperture of the movable handle, whereby the movable handle can slide back and forth along the long post of the rotatable handle.
Furthermore, a clamping groove is arranged at the front end of one circular handle of the movable handle; one end of the power supply clip passes through the clamping groove of the movable handle and is directly inserted into the long groove of the rotatable handle, and the other end of the power supply clip is kept in the clamping groove of the movable handle; the tail end of the rotating steel wire is fixedly connected with one end of the power clip in the long groove of the rotatable handle.
Furthermore, the hemostatic forceps with the four-bar movable rotating mechanism further comprises an anti-folding pipe which is sleeved outside the rear section of the plastic-coated spring pipe and the front section of the outer sheath pipe interface.
Furthermore, the outer surface of the front section of the outer sheath pipe interface is provided with teeth which are convenient for being connected with the plastic-coated spring pipe and a buckle which can clamp the anti-folding pipe.
The invention has the beneficial effects that:
the invention provides a four-bar movable rotating mechanism (rotatable positioning mechanism) used in endoscopic surgery and a hemostatic forceps with the four-bar movable rotating mechanism; the hemostatic forceps can fix the handle, and the head of the hemostatic forceps is rotated, so that risks of injury of internal organ tissues, damage of combined endoscope and the like caused by rotating the hemostatic forceps in an operation can be avoided.
Compared with the prior art, the invention also has the following advantages:
1. according to the four-connecting-rod movable rotating mechanism, the four elastic clamping pieces are designed at the rear end of the support frame and can be firmly clamped on the inner side wall of the bushing and not fall off, on one hand, axial movement (finger forward and backward movement) is limited, and the head cannot be loosened and fall off, on the other hand, the head and the support frame can rotate axially and flexibly, and the forceps head of the head can accurately position focus tissues to perform cutting hemostasis.
2. The four-connecting-rod movable rotating mechanism (rotatable positioning mechanism) and the hemostatic forceps with the four-connecting-rod movable rotating mechanism can accurately position focus tissues for cutting and forceps holder hemostasis, improve the blood stopping effect of the operation and greatly improve the operation success rate of doctors.
Drawings
Fig. 1 is a schematic structural view of a four-bar linkage movable rotating mechanism of the present invention (i.e., an enlarged view of a portion a in fig. 21, and a sectional view in a direction of a-a in fig. 3);
fig. 2 is a schematic structural view of the head 1 of the four-bar linkage movable rotating mechanism of the present invention with two jaws opened;
FIG. 3 is a schematic structural view of the connection portion between the head 1 and the support 5 by the rivet 4;
FIG. 4 is a schematic structural view of the connection portion of the support frame 5 and the bush 6 according to the present invention;
fig. 5 is a schematic sectional structure of the bush 6 of the present invention;
fig. 6 is a schematic perspective view of the support frame 5 of the present invention;
fig. 7 is a schematic structural view of the support frame 5 of the present invention (front view of fig. 6);
FIG. 8 is a schematic sectional view of the support 5 according to the present invention (sectional view A-A in FIG. 7);
fig. 9 is a schematic structural view of the support 5 of the present invention (right side view of fig. 7);
fig. 10 is a schematic structural view of the support 5 of the present invention (left side view of fig. 7);
FIG. 11 is a schematic view of the structure of the stationary handle 11 in the present invention;
FIG. 12 is a schematic view of the construction of the sheath hub 10 of the present invention;
fig. 13 is a schematic view of the structure of the rotary handle core 12 in the present invention;
fig. 14 is a schematic structural view of the rotary handle core 12 in the present invention (fig. 13 is a left side view);
fig. 15 is a schematic structural view of the rotary handle core 12 in the present invention (a-a cut view of fig. 13);
FIG. 16 is a schematic view showing the connection structure of the fixed handle 11 with the sheath hub 10 and the rotating handle core 12 according to the present invention;
FIG. 17 is a schematic top cross-sectional view of the rotatable handle 14 of the present invention;
FIG. 18 is a front view of the rotatable handle 14 of the present invention;
fig. 19 is a schematic view of the structure of the rotatable handle 14 in the present invention (left side view of fig. 17);
fig. 20 is a schematic structural view of a handle rotating mechanism in the present invention;
fig. 21 is a schematic view of the overall structure of the hemostatic forceps with a four-bar linkage movable rotation mechanism of the present invention.
In the figure: 1. 1-1 part of head, 1-2 parts of clamp head, 1-3 parts of rivet hole, 2 parts of rivet, 3 parts of connecting sheet, 4 parts of rivet, 5-1 parts of support frame, 5-2 parts of clamping block, 5-3 parts of circular truncated cone, 5-4 parts of connecting piece, 5-5 parts of small circular block, 5-6 parts of elastic clamping piece, 5-7 parts of central hole, 6 parts of rivet hole, 6-1 parts of bush, 7 parts of groove, 8 parts of pull rod, 8-1 parts of plastic-coated spring tube, 8-2 parts of metal spring tube, 9 parts of plastic-coated layer, 10 parts of rotating steel wire, 11 parts of outer sheath tube interface, 12 parts of fixed handle, 13 parts of rotating handle core, 13-1 parts of movable handle, 13-2 parts of circular handle, 13-3, A central hole 14-2, a circular handle 14-3, a long groove 14-4, a long pillar 15, a power supply clip 16, an anti-folding pipe 17, patterns 18, teeth 19 and a buckle
Detailed Description
The invention is further described below with reference to the following figures and examples.
Examples
As shown in fig. 1, 2 and 3, the four-bar linkage movable rotating mechanism of the invention comprises a head part 1, a connecting piece 2, a supporting frame 5, a bushing 6, a pull rod 7, a plastic-coated spring tube 8 and a rotating steel wire 9; the head part 1 comprises two symmetrically arranged binding clip 1-1 (an upper binding clip and a lower binding clip); two binding clip 1-1, the straight inner side of the front section has teeth, the middle bending part is respectively provided with a rivet hole 1-2, the rear end is respectively provided with a rivet 1-3 which is connected with the binding clip 1-1 into a whole.
As shown in fig. 4-10, the supporting frame 5 comprises two parallel rectangular clamping blocks 5-1, and each of the two clamping blocks 5-1 is provided with a rivet hole 5-7; the rear ends of the two clamping blocks 5-1 are connected together, the rear end joint part of the two clamping blocks is a circular table 5-2, a connecting piece 5-3 which can be connected with a bushing 6 is arranged behind the circular table, the center of the connecting piece is a small circular block 5-4 with a reduced diameter, and four fan-shaped elastic clamping pieces 5-5 which are outwards launched are arranged on the periphery of the small circular block; the radius of the four fan-shaped elastic clamping pieces 5-5 is slightly smaller than that of the circular truncated cone 5-2 of the support frame 5. The centers of the circular truncated cone 5-2 and the small round block 5-4 are both provided with central holes, and the pull rod 7 penetrates through the central holes 5-6 of the support frame 5 (namely the central holes of the circular truncated cone 5-2 and the small round block 5-4).
The rear ends of two binding clip 1-1 of the head 1 are riveted with the front ends of two connecting pieces 2 through rivets 1-3 which are connected with the binding clip 1-1 into a whole respectively; two binding clip 1-1 of the head 1 and two clamp blocks 5-1 of the support frame 5 are connected in series by a rivet 4, and the two clamp blocks 5-1 of the support frame 5 are fixedly connected with the rivet 4 by laser welding (namely, the two binding clip 1-1 of the head 1 are inserted between the two clamp blocks 5-1 of the support frame 5, the rivet holes 1-2 on the two binding clip 1-1 are aligned with the rivet holes 5-7 on the two clamp blocks 5-1 of the support frame 5, the rivet 4 is inserted therein, and the two clamp blocks 5-1 of the support frame 5 are fixedly connected with the rivet 4 by laser welding);
the support frame 5 is freely connected with the bush 6 after being inserted in an interference fit manner; four elastic clamping pieces 5-5 (made of elastic stainless steel) at the rear end of the support frame 5 can be firmly constructed at the inner side of the lining 6 (inserted into a circle of groove 6-1 on the inner wall of the lining 6, namely, can be firmly clamped in the circle of groove 6-1 on the inner wall of the lining 6 and cannot fall off); on one hand, the axial movement (front-back movement, namely left-right movement in fig. 1) is limited, the head part 1 and the support frame 5 can not be loosened (front-back movement cannot be realized), and on the other hand, the axial rotation of the head part 1 and the support frame 5 can be flexibly realized, so that the forceps head of the head part 1 can accurately position focal tissues for cutting and hemostasis.
The bush 6 is connected with the plastic-coated spring tube 8 by laser welding; the bush 6 is made of metal; the plastic-coated spring tube 8 comprises an inner metal spring tube 8-1 and an outer plastic-coated layer 8-2; namely, the metal spring tube 8-1 made of metal is arranged inside the plastic-coated spring tube 8; the outside of the metal spring tube 8-1 at the front section of the plastic-coated spring tube 8 is not coated with plastic; the bush 6 is sleeved outside the non-plastic coated metal spring tube 8-1 at the front section of the plastic coated spring tube 8, and the plastic coated spring tube and the metal spring tube are connected by laser welding; the outside of the metal spring tube 8-1 at the rear section of the plastic-coated spring tube 8 is coated with plastic, namely the rear section of the plastic-coated spring tube 8 consists of an outer plastic-coated layer 8-2 and an inner metal spring tube 8-1.
The rear end of the connecting sheet 2 is connected with the front end of the pull rod 7 in series by a rivet 3; the rear end of the pull rod 7 is connected with the front end of the rotating steel wire 9 in a laser welding way; the front section of the rotating steel wire 9 is inserted into a metal spring tube 8-1 of the plastic-coated spring tube 8.
The invention relates to a hemostatic forceps with a four-bar movable rotating mechanism, which comprises the four-bar movable rotating mechanism (a rotatable positioning mechanism) and a handle rotating mechanism; the four-connecting-rod movable rotating mechanism is connected with the handle rotating mechanism through a plastic-coated spring tube 8, a rotating steel wire 9 and an anti-folding tube 16.
As shown in fig. 11-20, the handle rotating mechanism includes a sheath tube interface 10, a fixed handle 11, a rotating handle core 12, a movable handle 13, a rotatable handle 14, and a power clip 15; the fixed handle 11 is connected with the plastic-coated spring tube 8 (namely, an outer sheath tube) through an outer sheath tube interface 10: the front end of the outer sheath tube interface 10 is inserted into the inner part of the rear end of the plastic-coated spring tube 8 (the two are fixedly connected); the front section of the fixed handle 11 is sleeved outside the rear end of the outer sheath tube interface 10 (the two are bonded and fixedly connected), the middle section and the rear section of the fixed handle 11 are arranged outside the front section and the middle section of the rotary handle core 12, namely the rotary handle core 12 is arranged inside the middle section and the rear section of the fixed handle 11.
As shown in fig. 17-20, the rotatable handle 14 has a circular ring-shaped grip 14-2 at the rear and a long post 14-4 at the front. The front end extension of the rotatable handle 14 is fitted around the rear section of the rotatable handle core 12, and the two are fixedly connected (bonded). The front part of a long strut 14-4 of the rotatable handle 14 is a solid body, and a central hole 14-1 is formed in the front solid body; a long groove 14-3 is arranged in the middle of the rear part of the long strut 14-4 of the rotatable handle 14; the movable handle 13 comprises two annular handles 13-1 and a middle connecting part 13-2 which are symmetrically arranged integrally, and the middle connecting part 13-2 comprises an upper part, a lower part and a middle hole; the long post 14-4 of the rotatable handle 14 passes through the central hole of the movable handle 13, whereby the movable handle 13 can slide back and forth along the long post 14-4 of the rotatable handle 14.
The front end of a circular handle of the movable handle 13 is provided with a clamping groove 13-3; one end of a power supply clip 15 passes through the clamping groove 13-3 of the movable handle 13 and is directly inserted into the long groove 14-3 of the rotatable handle 14, and the other end is kept in the clamping groove of the movable handle 13; the rotary steel wire 9 is inserted through the central hole of the outer sheath interface 10, the central hole of the rotary handle core 12 and the central hole 14-1 of the rotary handle 14 in sequence; the tail end of the rotating steel wire 9 is fixedly connected with one end of a power supply clip 15 in a long groove 14-3 of a rotatable handle 14.
The hemostatic forceps with the four-connecting-rod movable rotating mechanism further comprises an anti-folding tube 16, and the anti-folding tube 16 is sleeved outside the rear section of the plastic-coated spring tube 8 and the front section of the outer sheath tube interface 10. As shown in fig. 12, the outer surface of the front section of the outer sheath tube interface 10 is provided with teeth 18 for connecting with the plastic-coated spring tube 8 and a buckle 19 for clamping the anti-folding tube 16, and the anti-folding tube 16 is used for protecting the contact part between the plastic-coated spring tube 8 and the outer sheath tube interface 10 from being broken.
The fixing handle 11 is provided with patterns 17 to prevent slipping when held by hand.
There is a gap between the support 5 and the bushing 6, where the support 5 can rotate, i.e. where it can rotate. There is a gap between the fixed handle 11 and the rotary handle core 12, where the rotary handle core 12 can rotate, i.e., can rotate.
When the forceps are operated to stop bleeding, the opening and closing of the head part 1 can be controlled by pushing and pulling the movable handle 13 to move forwards and backwards on the rotatable handle 14 with one hand: the movable handle 13 moves backwards, pulls the rotating steel wire 9, the pull rod 7 and the connecting sheet 2 to move backwards, and the two forceps heads of the head part 1 are closed (closed); the movable handle 13 moves forward to push the rotating steel wire 9, the pull rod 7 and the connecting piece 2 to move forward, and the two forceps heads of the head part 1 are opened (opened).
When the operation is rotated, the rotation of the head 1 can be controlled by rotating the rotatable handle 14 (the rotatable handle 14, the movable handle 13, the power supply clip 15, the rotating wire 9, the pull rod 7, the connecting piece 2, and the head 1 are connected in sequence and rotated together) with one hand. (the rotation of the head part 1 drives the support frame 5 to rotate, namely four elastic clamping pieces 5-5 of the support frame 5 can be driven to rotate in a circle of groove 6-1 on the inner wall of the lining 6)
The plastic-coated spring tube 8 (i.e., the sheath tube) is fixed by fixing the fixing handle 11 with the other hand while the above-described jaw hemostasis operation and rotation operation are performed (the fixing handle 11 is connected to the plastic-coated spring tube 8 through the sheath tube interface 10). Therefore, the head of the hemostatic forceps can be rotated while the outer tube (the fixed handle 11, the plastic-coated spring tube 8, the outer sheath tube interface 10, the anti-folding tube 16 and the bush 6 are all fixed) is fixed, and the clamping angle of the two forceps heads of the head 1 is controlled.
The power supply clip 15 is connected with the rotating steel wire 9, the pull rod 7, the connecting sheet 2 and the head 1, is used by being electrified in cooperation with a high-frequency electrotome and can carry out cutting electrocoagulation operation. That is, the metal high-frequency electrode is inserted into the power supply clip 15, and the high-frequency electric knife is energized to perform the cutting electrocoagulation operation.
Embodiments of the present invention provide a method for using a rotating structural accessory in an endoscopic surgical site. Although the structural member is increased, the production efficiency is not reduced, and the same as the conventional process.
Claims (9)
1. A four-bar linkage movable rotating mechanism is characterized by comprising a head, a connecting sheet, a supporting frame, a bushing, a pull rod, a plastic-coated spring tube and a rotating steel wire; the head part is fixedly connected with the connecting sheet; the support frame is riveted with the head; the connecting sheet is riveted with the pull rod; the support frame is in free movable rotary connection with the bush; the bush is welded with the plastic-coated spring tube; the pull rod is fixedly connected with the rotating steel wire; the front section of the rotating steel wire is inserted into the plastic-coated spring tube.
2. The four-bar linkage active rotation mechanism of claim 1, wherein the head comprises two symmetrically disposed forcep heads; the straight inner side of the front section of each of the two binding clip is provided with teeth, the middle bent part is provided with a rivet hole, and the rear end of each of the two binding clip is provided with a rivet which is connected with the binding clip into a whole; the support frame comprises two parallel rectangular clamping blocks, and each clamping block is provided with a rivet hole; the rear ends of the two clamping blocks are connected together, the rear end joint part of the two clamping blocks is a circular truncated cone, a connecting piece which can be connected with the bushing is arranged behind the circular truncated cone, the center of the connecting piece is a small circular block with a reduced outer diameter, and four fan-shaped elastic clamping pieces which are emitted outwards are arranged on the periphery of the small circular block; the outer diameters of the four fan-shaped elastic clamping pieces are slightly smaller than the outer diameter of the circular table of the support frame; the circular truncated cone and the small round block are both provided with central holes, and the pull rod penetrates through the central holes of the support frame, namely the central holes of the circular truncated cone and the small round block;
the rear ends of the two binding clip of the head are respectively riveted with the front ends of the two connecting sheets through rivets which are connected with the binding clip into a whole; the two clamp heads of the head part are connected with the two clamping blocks of the support frame in series by a rivet, and the two clamping blocks of the support frame are fixedly connected with the rivet in a laser welding way;
the support frame is freely connected with the bushing after being inserted in an interference fit manner; the four elastic clamping pieces at the rear end of the support frame can be inserted into a circle of groove on the inner wall of the bushing; a gap is formed between the support frame and the bushing, and the support frame can rotate at the gap;
the lining is made of metal; the bushing is connected with the plastic-coated spring tube through laser welding; the plastic-coated spring tube comprises an inner metal spring tube layer and an outer plastic-coated layer;
the rear end of the connecting sheet is connected with the front end of the pull rod in series through a rivet; the rear end of the pull rod is welded with the front end of the rotating steel wire; the front section of the rotating steel wire is inserted into the metal spring tube of the plastic-coated spring tube.
3. The four-bar linkage movable rotating mechanism according to claim 2, wherein the metal spring tube of the front section of the plastic-coated spring tube is not coated with plastic; the bush is sleeved outside the non-plastic-coated metal spring pipe at the front section of the plastic-coated spring pipe, and the bush and the metal spring pipe are connected by laser welding; the outside of the metal spring tube at the rear section of the plastic-coated spring tube is coated with plastic, namely the rear section of the plastic-coated spring tube consists of an outer plastic coated layer and an inner metal spring tube.
4. The four-bar linkage movable rotating mechanism according to claim 2 or 3, wherein the four elastic clamping pieces at the rear end of the supporting frame are made of elastic stainless steel.
5. A hemostat with a four-bar linkage movable rotating mechanism according to any of claims 1-4, characterized in that it comprises said four-bar linkage movable rotating mechanism and further comprises a handle rotating mechanism; the four-connecting-rod movable rotating mechanism is connected with the handle rotating mechanism through a plastic-coated spring tube and a rotating steel wire;
the handle rotating mechanism comprises an outer sheath pipe interface, a fixed handle, a rotating handle core, a movable handle, a rotatable handle and a power supply clip; the fixed handle is connected with the plastic-coated spring tube through the outer sheath tube interface: the front end of the outer sheath pipe interface is inserted into the inner part of the rear end of the plastic-coated spring pipe; the front section of the fixed handle is sleeved outside the rear end of the outer sheath pipe joint, and rotary handle cores are arranged inside the middle section and the rear section of the fixed handle; the rotatable handle is fixedly connected with the rotating handle core; the tail end of the rotating steel wire is fixedly connected with a power supply clip; the power supply clip is fixedly connected with the movable handle;
the movable handle is movably connected with the rotatable handle, and the movable handle can slide back and forth on the rotatable handle; the rotary steel wire penetrates through the central hole of the outer sheath pipe interface, the central hole of the rotary handle core and the central hole of the rotary handle in sequence.
6. The four-bar linkage active rotation mechanism of claim 5, wherein the rotatable handle has a circular ring-shaped handle at the tail and a long pillar at the front; the front end extension part of the rotatable handle is sleeved outside the rear section of the rotatable handle core and fixedly connected with the rotatable handle core; the front part of the long strut of the rotatable handle is a solid body, and a central hole is formed in the solid body at the front part; a long groove is arranged in the middle of the middle rear part of the long strut of the rotatable handle; the movable handle comprises two annular handles and a middle connecting part which are symmetrically arranged, and the middle connecting part comprises an upper part, a lower part and a middle hole; the long post of the rotatable handle passes through the central aperture of the movable handle, whereby the movable handle can slide back and forth along the long post of the rotatable handle.
7. The four-bar linkage movable rotating mechanism according to claim 6, wherein a slot is provided at the front end of one of the circular ring-shaped handles of the movable handle; one end of the power supply clip passes through the clamping groove of the movable handle and is directly inserted into the long groove of the rotatable handle, and the other end of the power supply clip is kept in the clamping groove of the movable handle; the tail end of the rotating steel wire is fixedly connected with one end of the power clip in the long groove of the rotatable handle.
8. The four-bar linkage movable rotating mechanism according to claim 5, 6 or 7, wherein the hemostat with the four-bar linkage movable rotating mechanism further comprises an anti-folding tube sleeved outside the rear section of the plastic-coated spring tube and the front section of the outer sheath tube interface.
9. The four-bar linkage active rotation mechanism of claim 8, wherein the outer sheath tube interface front section is provided with teeth for connecting with the plastic-coated spring tube and a buckle for clamping the anti-folding tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011035226.7A CN112168290A (en) | 2020-09-27 | 2020-09-27 | Four-connecting-rod movable rotating mechanism and hemostatic forceps with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011035226.7A CN112168290A (en) | 2020-09-27 | 2020-09-27 | Four-connecting-rod movable rotating mechanism and hemostatic forceps with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112168290A true CN112168290A (en) | 2021-01-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011035226.7A Pending CN112168290A (en) | 2020-09-27 | 2020-09-27 | Four-connecting-rod movable rotating mechanism and hemostatic forceps with same |
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| Country | Link |
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| CN (1) | CN112168290A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116370032A (en) * | 2023-03-10 | 2023-07-04 | 极限人工智能有限公司 | Multi-degree-of-freedom surgical instrument movable joint, steering mechanism, surgical instrument and method |
-
2020
- 2020-09-27 CN CN202011035226.7A patent/CN112168290A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116370032A (en) * | 2023-03-10 | 2023-07-04 | 极限人工智能有限公司 | Multi-degree-of-freedom surgical instrument movable joint, steering mechanism, surgical instrument and method |
| CN116370032B (en) * | 2023-03-10 | 2024-04-23 | 极限人工智能有限公司 | Multi-degree-of-freedom surgical instrument movable joint, steering mechanism, surgical instrument and method |
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