CN113679431B - Rotatable thermal biopsy forceps with water injection pipe - Google Patents
Rotatable thermal biopsy forceps with water injection pipe Download PDFInfo
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- CN113679431B CN113679431B CN202111005075.5A CN202111005075A CN113679431B CN 113679431 B CN113679431 B CN 113679431B CN 202111005075 A CN202111005075 A CN 202111005075A CN 113679431 B CN113679431 B CN 113679431B
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- tube
- water injection
- pipe
- spray pipe
- clamp head
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B10/00—Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
- A61B10/02—Instruments for taking cell samples or for biopsy
- A61B10/06—Biopsy forceps, e.g. with cup-shaped jaws
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B10/00—Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
- A61B10/02—Instruments for taking cell samples or for biopsy
- A61B10/04—Endoscopic instruments
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/14—Probes or electrodes therefor
- A61B18/1442—Probes having pivoting end effectors, e.g. forceps
- A61B18/1445—Probes having pivoting end effectors, e.g. forceps at the distal end of a shaft, e.g. forceps or scissors at the end of a rigid rod
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00571—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for achieving a particular surgical effect
- A61B2018/00601—Cutting
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00982—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body combined with or comprising means for visual or photographic inspections inside the body, e.g. endoscopes
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2218/00—Details of surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2218/001—Details of surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body having means for irrigation and/or aspiration of substances to and/or from the surgical site
- A61B2218/002—Irrigation
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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 rotatable thermal biopsy forceps with a water injection pipe, which comprises a forceps head structure, a connecting structure, a forceps head control structure, an electrode plug and a transmission wire for connecting the electrode plug and the forceps head structure; the clamp head control structure comprises a core rod, a slip ring and a spray pipe assembly, wherein the slip ring is connected to the outside of the core rod in a sliding manner, and the spray pipe assembly is provided with a water filling port, a spray port facing the clamp head structure direction and a liquid channel communicated with the water filling port and the spray port; the two ends of the connecting structure are respectively connected with the clamp head structure and the core rod in a rotating way, the clamp head structure comprises a clamp which is connected with one end of the spray pipe assembly and is driven to clamp or close by the spray pipe assembly, and the other end of the spray pipe assembly is fixedly connected with the sliding ring so that the sliding ring drives the spray pipe assembly to rotate or axially reciprocate. The invention can ensure the synchronous movement of the spraying port and the clamp head structure, and is convenient for clamping tissues in time after hemostasis.
Description
Technical Field
The invention relates to the technical field of medical appliances, in particular to a rotatable thermal biopsy forceps with a water injection pipe.
Background
The thermal biopsy forceps are used for connecting the biopsy forceps with the electrode equipment, so that the forceps head is electrified to electrically cut the cell tissues, the cutting process is rapid, and bleeding is less. The prior art thermal biopsy forceps have the following defects: (1) The thermal biopsy forceps are not provided with a water injection pipe or the water injection pipe and the forceps head can not realize synchronous control, and when the tissue can not be clamped in time after the cell tissue is flushed by the water injection pipe, the tissue can not be clamped accurately under the condition of larger bleeding amount and faster bleeding amount. (2) The outer tube also rotates synchronously when the forceps head rotates, and the outer tube is arranged in the endoscope forceps channel when in use, and the rotation of the outer tube easily causes the scratch and abrasion of the endoscope forceps channel.
Disclosure of Invention
The invention provides a rotatable thermal biopsy forceps with a water injection pipe, which aims to solve the technical problems that in the prior art, the thermal biopsy forceps cannot realize simultaneous control of the water injection pipe and a forceps head, so that tissues cannot be accurately clamped, and the rotation of an outer pipe easily causes scratch and abrasion of an endoscope forceps channel.
The technical scheme adopted for solving the technical problems is as follows: a rotatable thermal biopsy forceps with a water injection pipe comprises a forceps head structure, a connecting structure, a forceps head control structure, an electrode plug and a transmission wire for connecting the electrode plug and the forceps head structure; the clamp head control structure comprises a core rod, a slip ring and a spray pipe assembly, wherein the slip ring is connected to the outside of the core rod in a sliding manner, and the spray pipe assembly is provided with a water filling port, a spray port facing the clamp head structure direction and a liquid channel communicated with the water filling port and the spray port; the two ends of the connecting structure are respectively connected with the clamp head structure and the core rod in a rotating way, the clamp head structure comprises a clamp which is connected with one end of the spray pipe assembly and is driven to clamp or close by the spray pipe assembly, and the other end of the spray pipe assembly is fixedly connected with the sliding ring so that the sliding ring drives the spray pipe assembly to rotate or axially reciprocate.
Further, the spray pipe assembly comprises a spray pipe connected with the clamp, a water injection pipe connected with the slip ring and an inner pipe simultaneously communicated with the spray pipe and the water injection pipe, wherein the inner pipe and the spray pipe are positioned in the connecting structure, and the water injection pipe radially extends out of the outer surface of the slip ring and is clamped with the slip ring.
Further, one end of the transmission wire is fixedly connected with the spraying pipe, the other end of the transmission wire is connected with the sliding ring, an electrode interface is arranged on the sliding ring, an electrode seat is arranged in the electrode interface, the transmission wire penetrates through the electrode seat, and an electrode plug is inserted into the electrode seat to be abutted to the transmission wire.
Further, the core rod is provided with a lower chute and an upper chute which are suitable for the water injection pipe and the electrode plug to reciprocate along the axial direction of the transmission wire.
Further, the clamp head structure further comprises a clamp head seat rotationally connected with the connecting structure, the clamp comprises two groups of connecting rod assemblies, each connecting rod assembly is formed by hinging two connecting rods, one connecting rod is hinged with the spraying pipe assembly, and the other connecting rod is hinged with the clamp head seat and extends outwards to form a clamping jaw.
Further, the connection structure comprises a rotary cap with one end rotationally connected with the core rod, a copper sleeve in threaded connection with the inner side of the other end of the rotary cap, a protective sleeve with one end fixed with the copper sleeve, and an outer tube fixed with the inner side of the other end of the protective sleeve, wherein the outer tube is rotationally connected with the clamp head structure.
Further, a plurality of groups of barbs suitable for being inserted into the inner wall of the sheath tube are arranged at one end, connected with the sheath tube, of the copper sleeve; one end of the protective sleeve is sleeved on the periphery of the connection part of the rotary cap and the copper sleeve.
Further, the water injection pipe is formed by a tee joint sleeved on the periphery of the transmission wire, and one end, close to the inner pipe, of the tee joint along the axial direction of the transmission wire is connected with a boosting pipe positioned on the periphery of the transmission wire; one end, close to the slip ring, of the tee joint along the axial direction of the transmission wire is connected with a riveting pipe positioned at the periphery of the transmission wire; the boosting pipe is connected with the inner pipe, and the riveting pipe is connected with the slip ring.
Further, one end of the tee joint, provided with the riveting pipe, is provided with a mounting port, the mounting port comprises a containing groove suitable for containing the silica gel plug and an internal thread suitable for being in threaded connection with a threaded sleeve, and the internal thread is located on the outer side of the axial direction of the containing groove.
Further, the front end of the spray tube has a chamfer inclined to the axial direction of the spray tube.
The beneficial effects of the invention are as follows:
(1) The rotatable thermal biopsy forceps with the water injection pipe control the rotation, closing and clamping actions of the forceps head structure by utilizing the core rod and the slip ring in the forceps head control structure, and the slip ring controls the movement of the forceps head structure by the spray pipe component, so that the synchronous movement of the spray port and the forceps head structure can be ensured, and the tissue can be clamped in time after hemostasis.
(2) According to the rotatable thermal biopsy forceps with the water injection pipe, the connecting structure in the forceps channel of the endoscope is in a fixed state, so that the connecting structure can be effectively prevented from wearing the forceps channel of the endoscope.
(3) The front end of the spray pipe is provided with the bevel surface which is inclined with the axial direction of the spray pipe, the spray pipe is needle-shaped, and after entering into a human body cavity, the spray pipe can be pricked into tissues through the bevel surface, so that the flowing and shaking of human tissues are avoided, and the water injection cleaning is inconvenient.
Drawings
The invention will be further described with reference to the drawings and examples.
FIG. 1 is a perspective view of an embodiment of a rotatable thermal biopsy forceps with a water injection tube in accordance with the present invention;
FIG. 2 is a side view of an embodiment of a rotatable thermal biopsy forceps with a water injection tube in accordance with the present invention;
FIG. 3 is a front view of an embodiment of a rotatable thermal biopsy forceps with a water injection tube in accordance with the present invention;
FIG. 4 is a cross-sectional view taken along A-A of FIG. 2;
FIG. 5 is a B-B cross-sectional view of FIG. 3;
FIG. 6 is an enlarged view of FIG. 1 at a;
FIG. 7 is an enlarged view of FIG. 4 at b;
FIG. 8 is an enlarged view of FIG. 4 at c;
FIG. 9 is an enlarged view of FIG. 5 at d;
FIG. 10 is an enlarged view of FIG. 5 at e;
FIG. 11 is an enlarged view at f of FIG. 5;
FIG. 12 is an enlarged view at h of FIG. 11;
FIG. 13 is an enlarged view at g in FIG. 5;
fig. 14 is a perspective view of the guide tube according to the present invention.
In the figure, 1, a clamp head structure, 101, a clamp jaw, 1011, a connecting rod, 1012, a clamping jaw, 102, a clamp head seat, 2, a connecting structure, 201, an outer tube, 202, a copper sleeve, 203, a rotary cap, 2031, an annular boss, 204, a fixed sleeve, 205, a protective sleeve, 3, a clamp head control structure, 301, a core rod, 3011, an annular groove, 3012, a lower sliding groove, 3013, an upper sliding groove, 302, a sliding ring, 3021, a clamping groove, 3022, an electrode interface, 3023, an electrode seat, 3031, a spraying tube, 30311, a water inlet, 30312, a chamfer, 3032, an inner tube, 3033, a water injection tube, 3034, a guide tube, 30341, a front connecting sleeve, 30342, a rear connecting sleeve, 30343, a shaft shoulder, 4, an electrode plug, 5, a driving wire, 6, a water injection port, 7, a spraying port, 8, a liquid channel, 9, a barb, 10, a first hinge shaft, 11, a second hinge shaft, 12, a rotating shaft, 13, a tee joint, 14, a mounting port, 15, a silica gel plug, 16, a connecting sleeve, 17, a push-in-pull buckle, 18, a rivet joint, and 20 are shown.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
The invention takes the direction of approaching focus tissue as front and the direction of separating focus tissue as back during operation.
A rotatable thermal biopsy forceps with a water injection pipe comprises a forceps head structure 1, a connecting structure 2, a forceps head control structure 3, an electrode plug 4 and a transmission wire 5 for connecting the electrode plug 4 with the forceps head structure 1; the clamp head control structure 3 comprises a core rod 301, a slip ring 302 which is connected with the outside of the core rod 301 in a sliding way, and a spray pipe assembly, wherein the spray pipe assembly is provided with a water filling port 6, a spray port 7 facing the direction of the clamp head structure 1 and a liquid channel 8 which is communicated with the water filling port 6 and the spray port 7; the two ends of the connecting structure 2 are respectively connected with the clamp head structure 1 and the core rod 301 in a rotating way, the clamp head structure 1 comprises a clamp holder 101 which is connected with one end of a spray pipe assembly and is driven to be clamped or closed by the spray pipe assembly, and the other end of the spray pipe assembly is fixedly connected with the sliding ring 302 so that the sliding ring 302 drives the spray pipe assembly to rotate or axially reciprocate.
The sliding ring 302 is in sliding connection with the core rod 301, the sliding ring 302 can axially reciprocate relative to the core rod 301, the forceps head control structure 3 is connected with the forceps head structure 1 through a spraying pipe assembly, the connecting structure 2 is positioned on the periphery of the spraying pipe assembly and used for fixing the axial positions of the forceps head structure 1 and the core rod 301, and meanwhile, the middle part (namely the connecting structure 2) of the thermal biopsy forceps is always fixed in the process of contacting with a forceps channel of an endoscope.
The spray tube assembly is used to introduce external water and irrigate tissue through the spray ports 7. The electrode plug 4 is connected with an electric cutting device, and the transmission wire 5 and the clamp head structure 1 are electrified through the switch control of the electric cutting device.
Working principle: firstly, the invention enters the human body through an endoscope forceps channel, one hand holds the connecting structure 2, the other hand rotates the core rod 301, and all parts in the forceps head control structure 3 rotate together with the core rod 301, so that the forceps head structure 1 is driven to rotate, and the forceps head structure 1 is positioned at a correct clamping position. Then, the slip ring 302 is pushed axially to open the jaws 101, the spray tube assembly starts to flush the position opposite to the jaws 101, and after flushing, the tissue structure can be clearly seen, at this time, the slip ring 302 is pushed reversely, the spray tube assembly moves reversely, and at the same time, the jaws 101 are closed and the tissue is clamped.
The electrode plug 4 can be arranged on the connecting structure 2 or the clamp head control structure 3, one end of the transmission wire 5 is connected with the clamp head structure 1, and the other end can be connected with the connecting structure 2 or the clamp head control structure 3. The fixed connection of the spray pipe assembly and the slip ring 302 means that the spray pipe assembly and the slip ring 302 synchronously move, and the spray pipe assembly and the slip ring 302 can be clamped or welded.
Example 1
As shown in fig. 1-13, a rotatable thermal biopsy forceps with a water injection pipe comprises a forceps head structure 1, a connecting structure 2, a forceps head control structure 3, an electrode plug 4 and a transmission wire 5 for connecting the electrode plug 4 with the forceps head structure 1; the clamp head control structure 3 comprises a core rod 301, a slip ring 302 which is connected with the outside of the core rod 301 in a sliding way, and a spray pipe assembly, wherein the spray pipe assembly is provided with a water filling port 6, a spray port 7 facing the direction of the clamp head structure 1 and a liquid channel 8 which is communicated with the water filling port 6 and the spray port 7; the two ends of the connecting structure 2 are respectively connected with the clamp head structure 1 and the core rod 301 in a rotating way, the clamp head structure 1 comprises a clamp holder 101 which is connected with one end of a spray pipe assembly and is driven to be clamped or closed by the spray pipe assembly, and the other end of the spray pipe assembly is fixedly connected with the sliding ring 302 so that the sliding ring 302 drives the spray pipe assembly to rotate or axially reciprocate.
Spray tube assembly:
as shown in fig. 8 to 12, the spray tube assembly includes a spray tube 3031 connected to the jaw 101, a water injection tube 3033 connected to the slip ring 302, and an inner tube 3032 simultaneously communicating with the spray tube 3031 and the water injection tube 3033, the inner tube 3032 and the spray tube 3031 being located inside the connection structure 2, the water injection tube 3033 extending radially beyond the outer surface of the slip ring 302 and being engaged with the slip ring 302. As shown in fig. 8, the front end of the inner tube 3032 is connected to the spray tube 3031 and is communicated with the spray tube 3031, the rear end of the inner tube 3032 is communicated with the water injection tube 3033, the slip ring 302 is sleeved on the outer periphery of the core rod 301, and the contact surface of the slip ring 302 and the core rod 301 is a non-circumferential surface, so that the slip ring 302 and the core rod 301 can synchronously rotate, and the front end of the slip ring 302 is provided with a clamping groove 3021 suitable for the water injection tube 3033 to pass through, so that the slip ring 302 drives the water injection tube 3033 to move.
The inner tube 3032 may be connected to the end face of the spray tube 3031 or may be connected as follows: as shown in fig. 10 and 14, a guide tube 3034 is further disposed between the inner tube 3032 and the spray tube 3031, the guide tube 3034 includes a front connecting sleeve 30341 sleeved on the outer periphery of the spray tube 3031, a rear connecting sleeve 30342 clamped on the inner periphery of the inner tube 3032, and a shaft shoulder 30343 connecting the front connecting sleeve 30341 and the rear connecting sleeve 30342, a water inlet hole 30311 is formed on the outer periphery of the spray tube 3031, the front connecting sleeve 30341 is clamped on the outer periphery of the spray tube 3031 and surrounds the water inlet hole 30311, the water inlet hole 30311 is communicated with the inner tube 3032, and barbs 9 suitable for being clamped on the inner periphery of the inner tube 3032 are arranged on the rear connecting sleeve 30342 and are used for being fixed with the inner tube 3032. The shoulder 30343 is used for abutting against the end of the inner tube 3032 and plays a role of axial limiting. The connection mode can enable the inner tube 3032 and the spray tube 3031 to be convenient to detach and replace, and can improve the tightness of the flow passage.
Binding clip structure 1:
the binding clip structure 1 further comprises a binding clip seat 102 rotatably connected with the connecting structure 2, and the jaw 101 comprises two sets of connecting rod assemblies, wherein each connecting rod assembly is formed by hinging two connecting rods 1011, one connecting rod 1011 is hinged with the spray tube assembly, and the other connecting rod 1011 is hinged with the binding clip seat 102 and extends outwards to form a clamping jaw 1012.
As shown in fig. 6 and 7, the middle parts of the two front connecting rods 1011 are hinged on the first hinge shaft 10 together with the clamp head base 102, the front ends of the two connecting rods 1011 form clamping jaws 1012, the two rear connecting rods 1011 are hinged on the second hinge shaft 11 together with the spray pipe 3031, the two connecting rods 1011 in the same group of connecting rod assemblies are hinged with each other, and when the slip ring 302 drives the spray pipe assembly to axially move, the hinged parts of the two rear connecting rods 1011 and the second hinge shaft 11 are close to or far from the first hinge shaft 10, so that the two clamping jaws 1012 are opened or closed.
Connection structure 2:
the connecting structure 2 comprises a rotary cap 203 with one end rotatably connected with a core rod 301, a copper sleeve 202 in threaded connection with the inner side of the other end of the rotary cap 203, a sheath tube 205 with one end fixed with the copper sleeve 202, and an outer tube 201 fixed with the inner side of the other end of the sheath tube 205, wherein the outer tube 201 is rotatably connected with the clamp head structure 1.
As shown in fig. 3 and 11, the outer tube 201, the copper sleeve 202 and the rotating cap 203 are sequentially arranged from front to back, the protective sleeve 205 is used for connecting the copper sleeve 202 and the rotating cap 203, the rotating cap 203 is in rotary connection with the annular groove 3011 on the core rod 301 through the cooperation of the annular boss 2031, and meanwhile, a step propped against the rear end of the rotating cap 203 is arranged on the core rod 301, so that the rotating cap 203 is prevented from axially moving. The outer tube 201 is fitted around the outer periphery of the inner tube 3032 and welded or adhesively secured to the inner wall of the copper sleeve 202. The copper sleeve 202 is provided with a plurality of groups of barbs 9 which are suitable for being inserted into the inner wall of the protective sleeve 205 at one end connected with the protective sleeve 205; one end of the sheath tube 205 is fitted around the outer periphery of the connection portion between the rotary cap 203 and the copper sleeve 202. The rotary cap 203 is fixed with the copper sleeve 202 through threads, the front end of the copper sleeve 202 is provided with the barb 9 to be inserted into the sheath tube 205, so that the copper sleeve 202 is fixed with the sheath tube 205, and meanwhile, the rear end of the sheath tube 205 plays a role in radial compression on the threaded connection part of the rotary cap 203 and the copper sleeve 202.
The outer tube 201 is rotatably connected with the clamp head seat 102: as shown in fig. 10, the front end of the outer tube 201 is fixed with a fixing sleeve 204, the fixing sleeve 204 and the clamp head seat 102 are simultaneously sleeved on the periphery of the rotating shaft 12, the clamp head seat 102 is welded or adhered and fixed with the rotating shaft 12, the fixing sleeve 204 is rotationally connected with the rotating shaft 12, and the shaft end is limited. The front end of jaw mount 102 has two arms extending forward with jaw 101 located therebetween.
Example two
In the first embodiment, the transmission wire 5 and the electrode port 3022 are not directly connected with the spray tube assembly, so that the transmission wire 5 and the electrode port 3022 need to be mounted at a position, which results in an excessively complex structure of the present invention and is prone to structural interference. The present embodiment is modified for this purpose as follows: one end of the transmission wire 5 is fixedly connected with the spray tube 3031, the other end of the transmission wire 5 is connected with the slip ring 302, an electrode interface 3022 is arranged on the slip ring 302, an electrode base 3023 is arranged in the electrode interface 3022, the transmission wire 5 penetrates through the electrode base 3023, and the electrode plug 4 is inserted into the electrode base 3023 to be abutted against the transmission wire 5 (as shown in fig. 8).
The electrode plug 4 is pressed on the driving wire 5, and when the slip ring 302 rotates or moves, the driving wire 5 can be driven to rotate or move together. In this embodiment, the transmission wire 5 can be placed inside the inner tube 3032, which saves space, and the transmission wire 5 and the electrode socket move synchronously with the clamp head control structure 3, so that structural interference can be avoided. Preferably, the electrode plug 4 is screwed to the electrode holder 3023.
Sliding connection of slip ring 302 with core rod 301: as shown in fig. 8, the stem 301 has a lower chute 3012 and an upper chute 3013 thereon adapted to reciprocate the water injection tube 3033 and the electrode plug 4 in the axial direction of the wire 5. As shown in fig. 8, the electrode port 3022 and the water injection tube 3033 are respectively disposed on the upper side and the lower side of the stem 301, the upper chute 3013 is disposed on the upper side of the stem 301, the electrode plug 4 is reciprocally moved, and the lower chute 3012 is disposed on the lower side of the stem 301, for reciprocal movement of the water injection tube 3033.
Example III
On the basis of the second embodiment, because the diameter of the transmission wire 5 is smaller and the strength is lower, a reinforcing structure needs to be additionally arranged outside the transmission wire 5 to be connected with a moving part, specifically, the water injection pipe 3033 is formed by a tee joint 13 sleeved on the periphery of the transmission wire 5, and one end, close to the inner pipe 3032, of the tee joint 13 along the axial direction of the transmission wire 5 is connected with a boosting pipe 17 positioned on the periphery of the transmission wire 5; one end of the tee 13, which is close to the slip ring 302 along the axial direction of the transmission wire 5, is connected with a riveting pipe 18 positioned at the periphery of the transmission wire 5; the booster tube 17 is connected to the inner tube 3032, and the rivet tube 18 is connected to the slip ring 302.
As shown in fig. 8 and 13, the tee 13 has outlets in three directions, namely front, rear and lower, the booster tube 17 is welded or adhered to the inner wall of the front port of the tee 13, the rivet tube 18 is fixed to the inner wall of the rear end of the tee 13, the lower port of the tee 13 is the water injection port 6, the water injection port 6 is communicated with the booster tube 17, the transmission wire 5 passes through the front and rear ports of the tee 13, the rivet tube 18 is positioned at the rear end of the transmission wire 5 and passes through the electrode holder 3023 together with the transmission wire 5, and the electrode plug 4 abuts against the rivet tube 18 when being inserted.
One end of the tee 13 provided with a rivet pipe is provided with a mounting opening 14, the mounting opening 14 comprises a containing groove suitable for containing a silica gel plug 15 and an internal thread suitable for being in threaded connection with a thread sleeve 16, and the internal thread is positioned on the outer side of the axial direction of the containing groove. The silica gel plug 15 is extruded between the radial clearance of the transmission wire 5 and the tee 13, so that liquid leakage caused by liquid flowing to the rear port of the tee 13 can be avoided, and the connecting thread sleeve 16 is fixed at the opening of the mounting port 14 and used for fixing the silica gel plug 15 inside the mounting port 14.
In the embodiment, the motion of the slip ring 302 is transmitted through the riveting pipe 18, the tee joint 13 and the boosting pipe 17 with higher strength, so that the direct stress of the transmission wire 5 is avoided, and the loss of the transmission wire 5 is reduced.
Example IV
Because of a certain movement or shaking of the internal tissues of the human body, when the bleeding part is sprayed by the spray tube 3031, the bleeding point may not be positioned in real time, and therefore, the present embodiment is improved as follows on the basis of the above embodiment: as shown in fig. 9, the front end of the spray pipe 3031 has a chamfer 30312 inclined to the axial direction of the spray pipe 3031. The chamfer 30312 makes the front end of the spray tube 3031 needle-shaped, and after entering the human body cavity, the chamfer 30312 can be pricked into the tissue to avoid the flowing and shaking of the human body tissue, which is inconvenient for water injection cleaning.
Preferably, the rear end of the stem 301 has a swivel button 19 for thumb to pass through and the rear end of the slip ring 302 has a pull button 20 for index and middle fingers to pass through.
In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "inner", "outer", "axial", "radial", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In this specification, a schematic representation of the terms does not necessarily refer to the same embodiment. Furthermore, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments.
With the above-described preferred embodiments according to the present invention as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present invention. The technical scope of the present invention is not limited to the description, but must be determined according to the scope of claims.
Claims (9)
1. A rotatable thermal biopsy forceps with a water injection tube, characterized in that: the clamp head comprises a clamp head structure (1), a connecting structure (2), a clamp head control structure (3), an electrode plug (4) and a transmission wire (5) for connecting the electrode plug (4) with the clamp head structure (1);
the clamp head control structure (3) comprises a core rod (301), a slip ring (302) which is connected to the outside of the core rod (301) in a sliding manner, and a spray pipe assembly, wherein the spray pipe assembly is provided with a water filling port (6), a spray port (7) which faces the clamp head structure (1) and a liquid channel (8) which is communicated with the water filling port (6) and the spray port (7);
the two ends of the connecting structure (2) are respectively and rotatably connected with the clamp head structure (1) and the core rod (301), the clamp head structure (1) comprises a clamp holder (101) which is connected with one end of the spray pipe assembly and is driven to be clamped or closed by the spray pipe assembly, and the other end of the spray pipe assembly is fixedly connected with the slip ring (302) so that the slip ring (302) drives the spray pipe assembly to rotate or axially reciprocate;
the spray pipe assembly comprises a spray pipe (3031) connected with the clamp (101), a water injection pipe (3033) connected with the slip ring (302) and an inner pipe (3032) communicated with the spray pipe (3031) and the water injection pipe (3033) at the same time, the inner pipe (3032) and the spray pipe (3031) are positioned in the connecting structure (2), and the water injection pipe (3033) radially extends out of the outer surface of the slip ring (302) and is clamped with the slip ring (302); one end of the transmission wire (5) is fixedly connected with the spray pipe (3031);
the novel spraying device is characterized in that a guide tube (3034) is arranged between the inner tube (3032) and the spraying tube (3031), the guide tube (3034) comprises a front connecting sleeve (30341) sleeved on the periphery of the spraying tube (3031), a rear connecting sleeve (30342) clamped on the inner periphery of the inner tube (3032), and a shaft shoulder (30343) connected with the front connecting sleeve (30341) and the rear connecting sleeve (30342), water inlet holes (30311) are formed in the periphery of the spraying tube (3031), the front connecting sleeve (30341) is clamped on the periphery of the spraying tube (3031) and surrounds the water inlet holes (30311), and barbs (9) suitable for being clamped on the inner periphery of the inner tube (3032) are arranged on the rear connecting sleeve (30342).
2. The rotatable, water injection tube-carrying thermal biopsy forceps of claim 1, wherein: the other end of the transmission wire (5) is connected with the slip ring (302), an electrode interface (3022) is arranged on the slip ring (302), an electrode seat (3023) is arranged in the electrode interface (3022), the transmission wire (5) penetrates through the electrode seat (3023), and an electrode plug (4) is inserted into the electrode seat (3023) to be abutted to the transmission wire (5).
3. The rotatable, water injection tube-carrying thermal biopsy forceps of claim 2, wherein: the core rod (301) is provided with a lower chute (3012) and an upper chute (3013) which are suitable for the water injection pipe (3033) and the electrode plug (4) to reciprocate along the axial direction of the transmission wire (5).
4. The rotatable, water injection tube-carrying thermal biopsy forceps of claim 1, wherein: the clamp head structure (1) further comprises a clamp head seat (102) rotatably connected with the connecting structure (2), the clamp head (101) comprises two groups of connecting rod assemblies, each connecting rod assembly is formed by hinging two connecting rods (1011), one connecting rod (1011) is hinged with the spraying pipe assembly, and the other connecting rod (1011) is hinged with the clamp head seat (102) and extends outwards to form a clamping jaw (1012).
5. The rotatable, water injection tube-carrying thermal biopsy forceps of claim 1, wherein: the connecting structure (2) comprises a rotary cap (203) with one end rotationally connected with the core rod (301), a copper sleeve (202) in threaded connection with the inner side of the other end of the rotary cap (203), a sheath tube (205) with one end fixed with the copper sleeve (202) and an outer tube (201) with the inner side of the other end of the sheath tube (205), wherein the outer tube (201) is rotationally connected with the clamp head structure (1).
6. The rotatable, water injection tube-carrying thermal biopsy forceps of claim 5, wherein: one end of the copper sleeve (202) connected with the sheath tube (205) is provided with a plurality of groups of barbs (9) which are suitable for being inserted into the inner wall of the sheath tube (205); one end of the sheath tube (205) is sleeved on the periphery of the connection part of the rotary cap (203) and the copper sleeve (202).
7. The rotatable, water injection tube-carrying thermal biopsy forceps of claim 1, wherein: the water injection pipe (3033) is formed by a tee joint (13) sleeved on the periphery of the transmission wire (5), and one end, close to the inner pipe (3032), of the tee joint (13) along the axial direction of the transmission wire (5) is connected with a boosting pipe (17) positioned on the periphery of the transmission wire (5); one end, close to the slip ring (302), of the tee joint (13) along the axial direction of the transmission wire (5) is connected with a riveting pipe (18) positioned at the periphery of the transmission wire (5); the boosting pipe (17) is connected with the inner pipe (3032), and the riveting pipe (18) is connected with the slip ring (302).
8. The rotatable, water injection tube-carrying thermal biopsy forceps of claim 7, wherein: one end of the three-way pipe (13) is provided with a mounting port (14), the mounting port (14) comprises a containing groove suitable for containing a silica gel plug (15) and an internal thread suitable for being in threaded connection with a thread sleeve (16), and the internal thread is positioned on the outer side of the axial direction of the containing groove.
9. The rotatable, water injection tube-carrying thermal biopsy forceps of claim 1, wherein: the front end of the spray pipe (3031) has a chamfer (30312) inclined to the axial direction of the spray pipe (3031).
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| CN202111005075.5A CN113679431B (en) | 2021-08-30 | 2021-08-30 | Rotatable thermal biopsy forceps with water injection pipe |
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| CN202111005075.5A CN113679431B (en) | 2021-08-30 | 2021-08-30 | Rotatable thermal biopsy forceps with water injection pipe |
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| CN113679431B true CN113679431B (en) | 2023-08-29 |
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| CN115517757B (en) * | 2022-11-28 | 2023-03-31 | 成都美创医疗科技股份有限公司 | Outer knife assembly and go out water hemostasis planer tool |
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