CN111904524B - Single-hand tightening and breaking hemorrhoid ligation device for anorectal department - Google Patents
Single-hand tightening and breaking hemorrhoid ligation device for anorectal department Download PDFInfo
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- CN111904524B CN111904524B CN202010984541.8A CN202010984541A CN111904524B CN 111904524 B CN111904524 B CN 111904524B CN 202010984541 A CN202010984541 A CN 202010984541A CN 111904524 B CN111904524 B CN 111904524B
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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
- A61B17/12009—Implements for ligaturing other than by clamps or clips, e.g. using a loop with a slip knot
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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
- A61B17/32—Surgical cutting instruments
- A61B17/3205—Excision instruments
- A61B17/32056—Surgical snare instruments
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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
- A61B17/12009—Implements for ligaturing other than by clamps or clips, e.g. using a loop with a slip knot
- A61B2017/12018—Elastic band ligators
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
Abstract
The invention discloses a single-hand tightening wire broken type hemorrhoid ligation device for anorectal department, which relates to the field of medical appliances and comprises a ligation tube and a gun body, wherein the ligation tube comprises a main tube body, a first push rod, a second push rod, a positioning ring, a buckle, a ligation wire, a push ring, a non-return device and a cushion block; the gun body comprises a shell, a wire pushing mechanism, a wire tightening mechanism, a wire breaking mechanism and an air passage; the wire pushing mechanism comprises a first poking piece, a second poking piece, a third push rod and a first reset spring; the wire tightening mechanism comprises a pull buckle, a second reset spring, a pull wire, a ratchet winch and a pawl; the wire breaking mechanism comprises a trigger, a third poking piece, a notch push rod, a third reset spring, a first wire breaking knife and a second wire breaking knife; an air passage is arranged in the shell, and a bending structure is arranged at the position of the second limiting groove. The invention can be operated by one hand, and can be used for sucking, sleeving (pushing wire and tightening wire) and breaking wire by only one doctor, and the invention is flexible and convenient, and is convenient to operate.
Description
Technical Field
The invention relates to the field of medical equipment, in particular to a single-hand tightening and wire breaking hemorrhoid ligation device for anorectal department.
Background
The anorectal department is a department mainly used for professional researches on constipation, anal fissure, anal fistula, anal abscess, anal stenosis, anal papilla hypertrophy, perianal eczema, mixed hemorrhoids, internal hemorrhoids and external hemorrhoids, and the research range of the department mainly comprises diseases occurring in organs at the digestive end, and the range of the diseases is between 8 cm and 12cm from the anus opening to the rectum.
In the prior art, the internal hemorrhoid ligation apparatus is a medical apparatus for treating internal hemorrhoid, mixed hemorrhoid, lower segment sigmoid colon and rectal polyp, a transparent tube suction head of the ligation apparatus is utilized to suck targets, a special rubber ring is sleeved on the base part of hemorrhoid or upper hemorrhoid mucous membrane, the blood supply of hemorrhoid is blocked or the venous backflow is reduced through the contraction and the wringing of the rubber ring, the congestion and hypertrophy or blood stasis of hemorrhoid are reduced, ischemia, atrophy and necrosis are generated, the ligation tissue gradually falls off, and wound tissue is repaired and healed.
The transparent tube and the rubber ring (or the ligation wire) of the traditional internal hemorrhoid ligation apparatus independently operate, one doctor is required to operate the transparent tube to suck the target and fix the position, the other doctor performs ligation (and cuts off the ligation wire), the narrow space causes very inconvenient operation, and the rubber ring is easy to break and the tightening force is insufficient, so that the hemorrhoid ligation apparatus with convenient operation and large tightening force is sought, and the ligation apparatus can complete all operations by one doctor with one hand.
Disclosure of Invention
In order to meet the technical requirements of the hemorrhoid ligation apparatus with convenient operation and high tightening force in the background technology, the invention provides the hemorrhoid ligation apparatus with single-hand tightening and wire breaking in anorectal department, and the operations of sucking, ligation (wire pushing and wire tightening) and wire breaking can be completed by only one doctor, and high tightening force and reliability are provided.
The invention solves the defects that the technical scheme adopted is as follows:
a single-hand tightening wire broken hemorrhoid ligation device for anorectal department comprises a ligation tube and a gun body, wherein the ligation tube comprises a main tube body, a first push rod, a second push rod, a positioning ring, a buckle, a ligation wire and a push ring; the main pipe body is fixedly connected with the positioning ring, and the positioning ring is fixedly connected with the buckle; the ligation tube is detachably connected with the gun body through a buckle; the surface of the main pipe body is provided with a first slideway, the first push rod is positioned in the first slideway and is connected with the first slideway through sliding, the surface of the main pipe body is provided with a second slideway, and the second push rod is positioned in the second slideway and is connected with the second slideway through sliding; the top end of the second push rod is fixedly connected with a push ring, and the push ring is positioned on the outer surface of the top end of the main pipe body and is connected with the push ring in a sliding manner; the ligation tube also comprises a non-return device and a cushion block;
the positioning ring is axially provided with a first through hole, and the first push rod is in sliding connection with the first through hole; the first push rod is of a hollow structure, the tail end of the first push rod is fixedly connected with the base plate, the positioning ring is connected with the base plate through a first push rod reset spring, and the first push rod reset spring is positioned on the outer surface of the first push rod; the positioning ring is fixedly connected with the cushion block, a first notch is formed in the side surface, close to the first push rod, of the cushion block, a first wire groove is formed in the side surface, away from the positioning ring, of the cushion block, and the side surface, away from the first push rod, of the cushion block, and the first wire groove and the first push rod are located at the same height; the tail end of the sleeve tying wire is fixedly connected with the positioning ring, and the sleeve tying wire sequentially penetrates through the first wire slot, the base plate, the first push rod and the third slideway on the outer surface of the push ring; the top end of the tying wire is a movable buckle coil structure, and the movable buckle coil is positioned on the outer surface of the main pipe at the front end of the push ring; the positioning ring is axially provided with a second through hole, and the check device is positioned in the second through hole and connected through one-way sliding; the check device comprises a check block and a check claw, the check block is positioned in the second through hole and is fixedly connected with the check claw through sliding connection, the number of the check claw and the check groove is not less than two, the check claw and the check groove are sequentially clamped, and the check groove is arranged on the outer surface of the main pipe; the check block is fixedly connected with the second push rod; the gun body comprises a shell, a wire pushing mechanism, a wire tightening mechanism, a wire breaking mechanism and an air passage.
The wire pushing mechanism comprises a first poking piece, a second poking piece, a third push rod and a first reset spring; the first poking piece is fixedly connected with the second poking piece through a rotating shaft, and the rotating shaft is rotationally connected with the shell; the shell is internally provided with a first limit groove, a third slide groove and a first spring groove, and the outer surface of the shell is provided with an outer limit groove; the first plectrum is positioned in the first limiting groove and rotationally connected, and the second plectrum is positioned in the outer limiting groove and rotationally connected; the third push rod is positioned in the third sliding groove and is in sliding connection, and the third push rod is in pressure connection with the second shifting piece; the tail end of the check block is positioned in the third chute, and the third push rod is in pressure connection with the check block; the third push rod is connected with a first reset spring, and the first reset spring is positioned in the first spring groove.
The wire tightening mechanism comprises a pull buckle, a second reset spring, a pull wire, a ratchet winch and a pawl; the shell is internally provided with a pull buckle chute, the tail end of the cushion block is positioned in the pull buckle chute, the pull buckle is positioned in the pull buckle chute and is in sliding connection, the hook part of the pull buckle is positioned in the first notch of the cushion block, and the pull buckle is connected with the tying wire in a pull manner; the pull buckle is connected with a pull wire, and the pull wire is connected with a ratchet winch; the ratchet winch is rotationally connected with the shell; the pawl is connected with the shell through a hinge, a torsion spring is arranged at the hinge position, and the pawl is clamped with the ratchet winch; the shell is internally provided with a second spring groove, a second reset spring is arranged in the second spring groove, and the second reset spring is connected with the pull buckle.
The wire breaking mechanism comprises a trigger, a third poking piece, a notch push rod, a third reset spring, a first wire breaking knife and a second wire breaking knife; the trigger is fixedly connected with the third poking piece, and the trigger and the third poking piece are both rotationally connected with the shell; the shell is internally provided with a second limit groove, and the third poking piece is positioned in the second limit groove; a notch push rod chute is arranged in the shell, and the notch push rod is positioned in the notch push rod chute and is in sliding connection; the tail end of the first push rod and the backing plate are both positioned in the notch push rod chute, and the notch push rod is in pressure connection with the backing plate; the cross section of the notch push rod is -shaped, and the ligature is positioned in a second notch in the -shaped notch push rod; a third spring groove is formed in the shell, a third reset spring is arranged in the third spring groove, and the third reset spring is connected with the notch push rod; the first wire cutter is positioned on the side surface of the tail end of the third slide way and is fixedly connected, the second wire cutter is positioned on the top end of the first push rod and is fixedly connected, and the cutting edge of the first wire cutter and the cutting edge of the second wire cutter are positioned in the same plane. An air passage is arranged in the shell, the front end of the air passage is communicated with the main pipe body, and the tail end of the air passage is connected with a negative pressure air pump; the air flue is provided with a bending structure at the position of the second limit groove.
Preferably, the housing includes a first housing, a second housing, and a third housing.
Preferably, the ligature is an elastic thread, and the elastic thread has excellent surface friction force, so that the movable buckle coil is more fastened.
Preferably, a protective cover or a protective sleeve angle is arranged at the positions of the first wire cutter and the second wire cutter and used for preventing the first wire cutter and the second wire cutter from scratching the rectum. The protection cover is of a shell-shaped structure, such as a cuboid shell-shaped structure without a bottom surface, an ellipsoidal shell-shaped structure without a bottom surface and the like, and is fixedly connected with the third slide way or the push ring, and is slidably connected with the outer surface of the first slide way. The protective sleeve angle is positioned at the two sharp angle positions of the cutting edges of the first wire cutter and the second wire cutter and is fixedly connected.
The invention has the advantages that: (1) the wire breaking mode is optimized, the wire breaking knife is embedded in the ligation tube, the problem that the traditional external scissors are difficult to operate in a narrow space is avoided, and the operation is simplified and convenient; (2) the operation of single hand can be completed by only one doctor, and the operations of sucking, ligature (pushing wire and tightening wire) and wire breakage are flexible and convenient, and the operation is convenient; (3) the wire breaking mechanism with higher reliability solves the problem by cutting for a plurality of times because the elastic wire is selected to improve the sleeve tightness, but the elastic wire is more difficult to cut than the traditional rubber ring.
Drawings
The application is further described below with reference to the accompanying drawings:
FIG. 1 is a front elevational view of the overall structure of the present invention;
FIG. 2 is a schematic illustration of the detachable construction of the ligation tube from the gun body;
FIG. 3 is a front view of the end configuration of the ligation tube;
FIG. 4 is a schematic view of a first notch structure;
FIG. 5 is a schematic diagram of a first wire slot structure;
FIG. 6 is a schematic illustration of a push ring structure;
FIG. 7 is a top view of the front end structure of the ligation tube;
FIG. 8 is a rear view of the push wire mechanism;
FIG. 9 is a rear view of the push wire knot mechanism assembly;
FIG. 10 is a top cross-sectional view of the push wire mechanism;
FIG. 11 is a schematic diagram of the front view of the recall device;
FIG. 12 is a schematic diagram of the front view of the outer limit groove;
FIG. 13 is a schematic diagram of a diagonal front view of the wire tightening mechanism;
FIG. 14 is a schematic view of a diagonal rear view of the wire tightening mechanism;
FIG. 15 is a schematic rear view of a wire-tightening mechanism;
FIG. 16 is a schematic diagram of an oblique rear view of the wire breaking mechanism;
FIG. 17 is a schematic diagram of a front view of the wire breaking mechanism;
FIG. 18 is a top cross-sectional view of the wire takeup mechanism and the wire breakage mechanism;
FIG. 19 is a schematic drawing of a wire-tightening mechanism;
FIG. 20 is a schematic view of a notch push tube structure;
FIG. 21 is a schematic drawing of a pull tab construction;
FIG. 22 is a rear view of the first housing and airway structure;
FIG. 23 is a top cross-sectional view of the bending structure;
FIG. 24 is a front view of the second housing structure;
fig. 25 is a front view of the third housing structure.
FIG. 26 is a front view of a protective cover structure;
FIG. 27 is a schematic view of a corner structure of a protective sleeve;
in the figure: 1-ligation tube, 11-main tube body, 110-check groove, 111-first slide, 112-second slide, 12-first push rod, 121-backing plate, 122-first push rod return spring, 13-second push rod, 14-retainer ring, 141-first through hole, 142-second through hole, 15-buckle, 16-check device, 161-check block, 162-check pawl, 17-spacer, 171-first notch, 172-first wire slot, 18-ligature, 181-living buckle coil, 19-push ring, 191-third slide, 2-gun body, 21-housing, 2101-first retainer slot, 2102-third slide, 2103-snap slide, 2104-first spring slot, 2105-second spring slot, 2106-second limit slot, 2107-notch push rod chute, 2108-outer limit slot, 2109-third spring slot, 211-first housing, 212-second housing, 213-third housing, 22-push wire mechanism, 221-first paddle, 222-second paddle, 223-third push rod, 224-first return spring, 23-turn-on mechanism, 231-pull buckle, 232-second return spring, 233-pull wire, 234-ratchet winch, 235-pawl, 24-wire break mechanism, 241-trigger, 242-third paddle, 243-notch push rod, 2431-second notch, 244-third return spring, 245-first wire break knife, 2451-protective cover, 2452-protective cover angle, 246-second wire break knife, 25-air passage, 251-bending structure.
Detailed Description
According to the above structural features of the present application, embodiments of the present application will be further described:
1-7 and 11, a single-hand tightening wire broken hemorrhoid ligation apparatus for anorectal department comprises a ligation tube 1 and a gun body 2, wherein the ligation tube 1 comprises a main tube body 11, a first push rod 12, a second push rod 13, a positioning ring 14, a buckle 15, a ligation wire 18 and a push ring 19; the main pipe body 11 is fixedly connected with the positioning ring 14, and the positioning ring 14 is fixedly connected with the buckle 15; the ligation tube 1 is detachably connected with the gun body 2 through a buckle 15; the surface of the main pipe body 11 is provided with a first slideway 111, the first push rod 12 is positioned in the first slideway 111 and connected in a sliding way, the surface of the main pipe body 11 is provided with a second slideway 112, and the second push rod 13 is positioned in the second slideway 112 and connected in a sliding way; the top end of the second push rod 13 is fixedly connected with a push ring 19, and the push ring 19 is positioned on the outer surface of the top end of the main pipe body 11 and is connected with the main pipe body through sliding; the ligation tube 1 further comprises a non-return device 16 and a spacer 17; the positioning ring 14 is axially provided with a first through hole 141, and the first push rod 12 is in sliding connection with the first through hole 141; the first push rod 12 is of a hollow structure, the tail end of the first push rod 12 is fixedly connected with the base plate 121, the positioning ring 14 is connected with the base plate 121 through a first push rod return spring 122, and the first push rod return spring 122 is positioned on the outer surface of the first push rod 12; the positioning ring 14 is fixedly connected with the cushion block 17, a first notch 171 is formed in the side surface, close to the first push rod 12, of the cushion block 17, which is away from one end of the positioning ring 14, and a first line groove 172 is formed in the side surface, away from the positioning ring 14, of the cushion block 17, and the first line groove 172 and the first push rod 12 are located at the same height; the tail end of the ligature 18 is fixedly connected with the positioning ring 14, and the ligature 18 sequentially penetrates through the first thread groove 172, the base plate 121, the first push rod 12 and the third slide way 191 on the outer surface of the push ring 19; the top end of the tying sleeve 18 is provided with a movable buckle coil 181 structure, and the movable buckle coil 181 is positioned on the outer surface of the main pipe body 11 at the front end of the push ring 19; the positioning ring 14 is axially provided with a second through hole 142, and the check device 16 is positioned in the second through hole 142 and connected through one-way sliding; the check device 16 comprises a check block 161 and a check claw 162, the check block 161 is located in the second through hole 142 and is connected with the check claw 162 in a sliding manner, the check block 161 is fixedly connected with the check claw 162, the number of the check claw 162 and the number of the check groove 110 are not less than two, the check claw 162 and the check groove 110 are sequentially clamped, and the check groove 110 is arranged on the outer surface of the main pipe body 11. The check block 161 is fixedly connected with the second push rod 13; the gun body 2 comprises a shell 21, a wire pushing mechanism 22, a wire tightening mechanism 23, a wire breaking mechanism 24 and an air channel 25.
In the second embodiment, referring to fig. 8 to 12, the wire pushing mechanism 22 includes a first pulling piece 221, a second pulling piece 222, a third pushing rod 223 and a first return spring 224; the first poking piece 221 is fixedly connected with the second poking piece 222 through a rotating shaft, and the rotating shaft is rotationally connected with the shell 21; a first limit groove 2101, a third slide groove 2102 and a first spring groove 2104 are arranged in the shell 21, and an outer limit groove 2108 is arranged on the outer surface of the shell 21; the first shifting piece 221 is positioned in the first limiting groove 2101 and is rotationally connected, and the second shifting piece 222 is positioned in the outer limiting groove 2108 and is rotationally connected; the third push rod 223 is positioned in the third sliding groove 2102 and is in sliding connection, and the third push rod 223 is in pressure connection with the second poking piece 222; the tail end of the check block 161 is positioned in the third sliding groove 2102, and the third push rod 223 is in pressure connection with the check block 161; the third push rod 223 is connected to a first return spring 224, the first return spring 224 being located in the first spring slot 2104.
In the third embodiment, referring to fig. 13 to 15, fig. 18 to 19, and fig. 21, the wire tightening mechanism 23 includes a pull buckle 231, a second return spring 232, a pull wire 233, a ratchet winch 234, and a pawl 235; the shell 21 is internally provided with a pull buckle chute 2103, the tail end of the cushion block 17 is positioned in the pull buckle chute 2103, the pull buckle 231 is positioned in the pull buckle chute 2103 and is in sliding connection, the hook part of the pull buckle 231 is positioned in the first notch 171 of the cushion block 17, and the pull buckle 231 is connected with the tying wire 18 in a pulling way; the pull buckle 231 is connected with the pull wire 233, and the pull wire 233 is connected with the ratchet winch 234; the ratchet winch 234 is rotatably connected with the housing 21; the pawl 235 is connected with the shell 21 through a hinge, a torsion spring is arranged at the hinge position, and the pawl 235 is clamped with the ratchet winch 234; the second spring groove 2105 is arranged in the shell 21, the second return spring 232 is arranged in the second spring groove 2105, and the second return spring 232 is connected with the pull buckle 231.
16-20, the wire breaking mechanism 24 includes a trigger 241, a third pulling piece 242, a notch push rod 243, a third return spring 244, a first wire breaking blade 245 and a second wire breaking blade 246; the trigger 241 is fixedly connected with the third pulling piece 242, and the trigger 241 and the third pulling piece 242 are both rotatably connected with the shell 21; the second limiting groove 2106 is arranged in the shell 21, and the third plectrum 242 is positioned in the second limiting groove 2106; a notch push rod chute 2107 is arranged in the shell 21, and a notch push rod 243 is positioned in the notch push rod chute 2107 and is in sliding connection; the tail end of the first push rod 12 and the backing plate 121 are both positioned in the notch push rod chute 2107, and the notch push rod 243 is in pressure connection with the backing plate 121; the cross section of the notch push rod 243 is -shaped, and the ligature 18 is positioned in a second notch 2431 in the -shaped notch push rod 243; a third spring slot 2109 is arranged in the shell 21, a third return spring 244 is arranged in the third spring slot 2109, and the third return spring 244 is connected with a notch push rod 243; the first wire cutter 245 is located at the side surface of the end of the third slideway 191 and is fixedly connected, the second wire cutter 246 is located at the top end of the first push rod 12 and is fixedly connected, and the cutting edge of the first wire cutter 245 and the cutting edge of the second wire cutter 246 are located in the same plane.
22-24, an air passage 25 is arranged in the housing 21, the front end of the air passage 25 is communicated with the main pipe body 11, and the tail end of the air passage 25 is connected with a negative pressure air pump; the air passage 25 is provided with a bending structure 251 at the position of the second limiting groove 2106, and the bending structure 251 is used for avoiding the conflict between the air passage 25 and the second limiting groove 2106 in space position.
In the sixth embodiment, referring to fig. 22 and 24-25, the housing 21 includes a first housing 211, a second housing 212 and a third housing 213, so as to facilitate the installation of the housing 21 and the internal thread pushing mechanism 22, the tightening mechanism 23 and the thread breaking mechanism 24.
Preferably, the ligature 18 is an elastic thread, and the elastic thread is made of very thin high-strength rubber band, generally 98% cotton+2% rubber band, and mainly comprises terylene, nylon, rubber thread and latex thread. Compared with the traditional rubber ring, the elastic thread has the advantages that the outer thread structure is added, so that the elastic thread has a stronger upper bearing limit, and the problem of difficult cutting is caused.
In a seventh embodiment, referring to fig. 26 to 27, a protective cover 2451 or a protective cover corner 2452 is installed at the positions of the first wire cutter 245 and the second wire cutter 246. The protecting cover 2451 is in a shell-shaped structure, the protecting cover 2451 is fixedly connected with the third slide 191 or the push ring 19, and the protecting cover 2451 is slidably connected with the outer surface of the first slide 111 at any time. The protective sleeve angle 2452 is positioned at the two sharp corners of the cutting edges of the first wire cutter 245 and the second wire cutter 246 and is fixedly connected.
Working principle and method of use (right-hand operation as an example):
the first step: sucking, namely connecting the ligation tube 1 with the gun body 2 through the buckle 15, connecting the tail end of the air passage 25 with a negative pressure air pump, opening the negative pressure air pump, sucking hemorrhoids into the front end of the main tube body 11, and closing the negative pressure air pump;
and a second step of: the binding-pushing wire is sleeved, the handle of the gun body 2 is held by four fingers, the thumb pulls the second pulling piece 222 to rotate clockwise, the second pulling piece 222 drives the first pulling piece 221, the first pulling piece 221 pushes the third push rod 223 forwards, the third push rod 223 pushes the non-return device 16, the non-return device 16 pushes the second push rod 13, the second push rod 13 pushes the push ring 19, the push ring 19 pushes the movable buckle coil 181, and the movable buckle coil 181 is sleeved at the root of the hemorrhoid; then the second pulling piece 222 is released, the first return spring 224 drives the third push rod 223, the first pulling piece 221 and the second pulling piece 222 to return, and based on the non-return effect of the non-return device 16, the originally crimped third push rod 223 is separated from the non-return device 16, so that the second push rod 13 and the push ring 19 are both in neither thrust nor tensile force, and the effect of stabilizing the position of the push ring 19 (namely the first wire breaking knife 245) is achieved.
And a third step of: the loop ligature-tightening wire is carried out, the handle of the gun body 2 is held by four fingers, the thumb pulls the ratchet winch 234 to rotate clockwise, the ratchet winch 234 pulls the pull wire 233, the pull wire 233 pulls the pull buckle 231, the pull buckle 231 pulls the loop ligature 18, the second notch 2431 of the notch push rod 243 is used for providing a deformation space for the loop ligature 18, the movable buckle coil 181 at the top end of the loop ligature 18 is tightened, and the movable buckle coil 181 tightens the root of hemorrhoids; the pawl 235 is clamped with the ratchet winch 234 to achieve a non-return effect, so that loosening of the stay wire 233 is avoided, and tightening effect of the ligature sleeving 18 is achieved.
Fourth step: the broken wire, the index finger or the middle finger pulls the trigger 241, the third pulling piece 242 is linked to rotate anticlockwise, the third pulling piece 242 pushes the notch push rod 243, the notch push rod 243 pushes the base plate 121, the base plate 121 pushes the first push rod 12, the first push rod 12 pushes the second broken wire cutter 246, the second broken wire cutter 246 is meshed with the first broken wire cutter 245, and single cutting of the tying wire 18 is achieved; if the single cutting does not achieve the wire breakage effect, the trigger 241 is loosened, the first push rod return spring 122 drives the base plate 121, the first push rod 12 and the second wire breakage knife 246 to reset, meanwhile, the third return spring 244 drives the notch push rod 243, the third pulling piece 242 and the trigger 241 to reset, and then the trigger 241 is pulled again.
Fifth step: post-treatment, wherein the movable buckle coil 181 is left at the root of the hemorrhoid, and the ligation tube 1 is moved out of the patient; then the buckle 15 is pulled out, the ligation tube 1 is separated from the gun body 2 (the subsequent operation is double-hand operation), and meanwhile, the broken ligation wire 18 is sequentially pulled out through the hook parts of the first push rod 12, the base plate 121 and the pull buckle 231, and the ligation tube 1 is discarded as medical waste; removing a pawl 235 clamped on the ratchet winch 234, and driving the pull buckle 231, the pull wire 233 and the ratchet winch 234 to reset by the second reset spring 232 to release the pawl 235; the whole reset of the gun body 2 is completed for later use.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or element in question must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, integrally connected, mechanically connected, electrically connected, directly connected, connected via an intermediate medium, or connected in communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In view of the foregoing, it will be appreciated by those skilled in the art that, based upon the teachings herein, changes, modifications, substitutions and alterations can be made without departing from the principles and spirit of this invention.
Claims (6)
1. The single-hand tightening wire broken hemorrhoid ligation device for anorectal department comprises a ligation tube (1) and a gun body (2), wherein the ligation tube (1) comprises a main tube body (11), a first push rod (12), a second push rod (13), a positioning ring (14), a buckle (15), a ligation wire (18) and a push ring (19); the main pipe body (11) is fixedly connected with the positioning ring (14), and the positioning ring (14) is fixedly connected with the buckle (15); the ligation tube (1) is detachably connected with the gun body (2) through a buckle (15); the surface of the main pipe body (11) is provided with a first slide way (111), the first push rod (12) is positioned in the first slide way (111) and is connected through sliding, the surface of the main pipe body (11) is provided with a second slide way (112), and the second push rod (13) is positioned in the second slide way (112) and is connected through sliding; the top end of the second push rod (13) is fixedly connected with a push ring (19), and the push ring (19) is positioned on the outer surface of the top end of the main pipe body (11) and is connected with the main pipe body through sliding;
the method is characterized in that: the ligation tube (1) also comprises a non-return device (16) and a cushion block (17);
the positioning ring (14) is axially provided with a first through hole (141), and the first push rod (12) is in sliding connection with the first through hole (141); the first push rod (12) is of a hollow structure, the tail end of the first push rod (12) is fixedly connected with the base plate (121), the positioning ring (14) is connected with the base plate (121) through a first push rod return spring (122), and the first push rod return spring (122) is positioned on the outer surface of the first push rod (12); the positioning ring (14) is fixedly connected with the cushion block (17), a first notch (171) is formed in the side surface, close to the first push rod (12), of the cushion block (17), which is away from one end of the positioning ring (14), and a first line groove (172) is formed in the side surface, away from the positioning ring (14), of the cushion block (17) and the side surface, away from the first push rod (12), of the cushion block (17), and the first line groove (172) and the first push rod (12) are located at the same height; the tail end of the ligature sleeving (18) is fixedly connected with the positioning ring (14), and the ligature sleeving (18) sequentially penetrates through the first wire groove (172), the base plate (121), the first push rod (12) and a third slide way (191) on the outer surface of the push ring (19); the top end of the tying wire (18) is of a loose knot coil (181) structure, and the loose knot coil (181) is positioned on the outer surface of the main pipe body (11) at the front end of the push ring (19); the positioning ring (14) is axially provided with a second through hole (142), and the check device (16) is positioned in the second through hole (142) and connected through one-way sliding; the check device (16) comprises a check block (161) and check claws (162), the check block (161) is positioned in the second through holes (142) and is fixedly connected with the check claws (162) through sliding connection, the number of the check claws (162) and the number of the check grooves (110) are not less than two, the check claws (162) and the check grooves (110) are sequentially clamped, and the check grooves (110) are arranged on the outer surface of the main pipe body (11); the non-return block (161) is fixedly connected with the second push rod (13);
the gun body (2) comprises a shell (21), a wire pushing mechanism (22), a wire tightening mechanism (23), a wire breaking mechanism (24) and an air passage (25);
the wire pushing mechanism (22) comprises a first poking piece (221), a second poking piece (222), a third push rod (223) and a first reset spring (224); the first poking piece (221) is fixedly connected with the second poking piece (222) through a rotating shaft, and the rotating shaft is rotationally connected with the shell (21); a first limit groove (2101), a third slide groove (2102) and a first spring groove (2104) are arranged in the shell (21), and an outer limit groove (2108) is arranged on the outer surface of the shell (21); the first poking piece (221) is positioned in the first limiting groove (2101) and is connected in a rotating way, and the second poking piece (222) is positioned in the outer limiting groove (2108) and is connected in a rotating way; the third push rod (223) is positioned in the third sliding groove (2102) and is in sliding connection, and the third push rod (223) is in pressure connection with the second poking piece (222); the tail end of the check block (161) is positioned in the third sliding groove (2102), and the third push rod (223) is in pressure connection with the check block (161); the third push rod (223) is connected with a first return spring (224), and the first return spring (224) is positioned in the first spring groove (2104);
the wire tightening mechanism (23) comprises a pull buckle (231), a second reset spring (232), a pull wire (233), a ratchet winch (234) and a pawl (235); a pull buckle chute (2103) is arranged in the shell (21), the tail end of the cushion block (17) is positioned in the pull buckle chute (2103), the pull buckle (231) is positioned in the pull buckle chute (2103) and is in sliding connection, the hook part of the pull buckle (231) is positioned in the first notch (171) of the cushion block (17), and the pull buckle (231) is connected with the ligature (18) in a pulling way; the pull buckle (231) is connected with a pull wire (233), and the pull wire (233) is connected with a ratchet winch (234); the ratchet winch (234) is rotationally connected with the shell (21); the pawl (235) is connected with the shell (21) through a hinge, a torsion spring is arranged at the hinge position, and the pawl (235) is clamped with the ratchet winch (234); a second spring groove (2105) is formed in the shell (21), a second return spring (232) is arranged in the second spring groove (2105), and the second return spring (232) is connected with the pull buckle (231);
the wire breaking mechanism (24) comprises a trigger (241), a third pulling piece (242), a notch push rod (243), a third reset spring (244), a first wire breaking knife (245) and a second wire breaking knife (246); the trigger (241) is fixedly connected with the third poking piece (242), and the trigger (241) and the third poking piece (242) are both rotationally connected with the shell (21); a second limit groove (2106) is formed in the shell (21), and the third poking piece (242) is positioned in the second limit groove (2106); a notch push rod chute (2107) is arranged in the shell (21), and a notch push rod (243) is positioned in the notch push rod chute (2107) and is in sliding connection; the tail end of the first push rod (12) and the base plate (121) are both positioned in the notch push rod chute (2107), and the notch push rod (243) is in pressure connection with the base plate (121); the cross section of the notch push rod (243) is -shaped, and the ligature sleeving (18) is positioned in a second notch (2431) in the -shaped notch push rod (243); a third spring groove (2109) is formed in the shell (21), a third return spring (244) is arranged in the third spring groove (2109), and the third return spring (244) is connected with the notch push rod (243); the first wire breaking knife (245) is positioned on the side surface of the tail end of the third slide way (191) and is fixedly connected, the second wire breaking knife (246) is positioned at the top end of the first push rod (12) and is fixedly connected, and the cutting edge of the first wire breaking knife (245) and the cutting edge of the second wire breaking knife (246) are positioned in the same plane;
an air passage (25) is arranged in the shell (21), and the front end of the air passage (25) is communicated with the main pipe body (11); the air passage (25) is provided with a bending structure (251) at the position of the second limit groove (2106).
2. The anorectal single-hand tight wire broken hemorrhoid ligation apparatus according to claim 1, wherein: the housing (21) includes a first housing (211), a second housing (212), and a third housing (213).
3. The anorectal single-hand tight wire broken hemorrhoid ligation apparatus according to claim 1, wherein: the ligature (18) is an elastic thread.
4. The anorectal single-hand tight wire broken hemorrhoid ligation apparatus according to claim 1, wherein: a protective cover (2451) or a protective cover angle (2452) is arranged at the positions of the first wire breaking knife (245) and the second wire breaking knife (246).
5. The anorectal single-hand tight wire broken hemorrhoid ligation apparatus according to claim 4, wherein: the protection cover (2451) is of a shell-shaped structure, the protection cover (2451) is fixedly connected with the third slide rail (191) or the push ring (19), and the protection cover (2451) is slidably connected with the outer surface of the first slide rail (111).
6. The anorectal single-hand tight wire broken hemorrhoid ligation apparatus according to claim 4, wherein: the protective sleeve angle (2452) is positioned at the two sharp angle positions of the cutting edges of the first wire cutter (245) and the second wire cutter (246) and is fixedly connected.
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| CN202010984541.8A CN111904524B (en) | 2020-09-18 | 2020-09-18 | Single-hand tightening and breaking hemorrhoid ligation device for anorectal department |
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| CN202010984541.8A CN111904524B (en) | 2020-09-18 | 2020-09-18 | Single-hand tightening and breaking hemorrhoid ligation device for anorectal department |
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| CN111904524B true CN111904524B (en) | 2023-06-23 |
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| CN113081141B (en) * | 2021-05-25 | 2022-08-26 | 无锡市第九人民医院 | Elastic thread haemorrhoids ligation device of adjustable ligation elasticity |
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| CN111904524A (en) | 2020-11-10 |
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