CN113349871B - Angle-adjustable clamp applying forceps with clamping head - Google Patents
Angle-adjustable clamp applying forceps with clamping head Download PDFInfo
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- CN113349871B CN113349871B CN202110624033.3A CN202110624033A CN113349871B CN 113349871 B CN113349871 B CN 113349871B CN 202110624033 A CN202110624033 A CN 202110624033A CN 113349871 B CN113349871 B CN 113349871B
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- 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
- A61B17/128—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 applying or removing clamps or clips
- A61B17/1285—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 applying or removing clamps or clips for minimally invasive surgery
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Abstract
The invention discloses a clamp applying forceps with an adjustable angle of a chuck, and aims to provide a clamp applying forceps with an adjustable angle of a chuck, which can adjust the angle of the chuck according to actual needs and can adjust the angle of the chuck according to the actual needs after the chuck extends into a human body in operation so as to adapt to clamping needs. The clamp comprises a clamp handle, a clamp head, an outer sleeve fixed on the clamp handle, a push rod arranged in the outer sleeve and an angle adjusting mechanism, wherein one end of the push rod is connected with the clamp handle, the other end of the push rod is connected with the clamp head, the clamp handle is used for driving the push rod to move along the outer sleeve so as to drive the clamp head to open and close, the outer sleeve comprises a main sleeve and an adjusting pipe, one end of the main sleeve is fixed on the clamp handle, the other end of the main sleeve is hinged to one end of the adjusting pipe through a first hinge shaft, the clamp head is arranged at the other end of the adjusting pipe, and the angle adjusting mechanism is used for driving the adjusting pipe to rotate around the first hinge shaft.
Description
Technical Field
The invention relates to a clamping forceps, in particular to a clamping forceps with an adjustable angle of a clamping head.
Background
Clip appliers are one type of medical devices that are commonly used today, and are commonly used in surgical procedures. The existing clip applier generally comprises a clip handle, a clamp head, an outer sleeve fixed on the clip handle and a push rod arranged in the outer sleeve, wherein one end of the push rod is connected with the clip handle, the other end of the push rod is connected with the clamp head, and the clip handle is used for driving the push rod to move along the outer sleeve so as to drive the clamp head to open and close. The outer sleeve of the clip applier generally comprises a sleeve, the chuck is mounted at one end of the outer sleeve, the chuck can be opened and closed to realize clamping and releasing functions, but the mounting angle of the chuck is fixed, and in the actual use process, such as an operation process, the angle of the chuck cannot be adjusted according to actual needs, so that the clip applier is not beneficial to actual use.
Disclosure of Invention
The invention aims to provide a forceps capable of adjusting the angle of a chuck according to actual needs, and adjusting the angle of the chuck according to actual needs after the chuck extends into a human body in an operation so as to adapt to the angle-adjustable forceps for clamping the chuck.
The technical scheme of the invention is as follows:
an angle-adjustable clip applier with a clip head, which comprises a clip handle, a clip head, an outer sleeve fixed on the clip handle, a push rod arranged in the outer sleeve and an angle adjusting mechanism, wherein one end of the push rod is connected with the clip handle, the other end of the push rod is connected with the clip head, the clip handle is used for driving the push rod to move along the outer sleeve so as to drive the clip head to open and close, the outer sleeve comprises a main sleeve and an adjusting pipe, one end of the main sleeve is fixed on the clip handle, the other end of the main sleeve is hinged with one end of the adjusting pipe through a first hinge shaft, the clip head is arranged at the other end of the adjusting pipe, the angle adjusting mechanism is used for driving the adjusting pipe to rotate around the first hinge shaft, the angle adjusting mechanism comprises a threaded hole arranged on the side wall of the main sleeve, a screw rod matched with the threaded hole, an eccentric wheel and a rocking handle arranged on the screw rod, a rotating shaft sleeve sleeved on the eccentric wheel and a connecting rod connecting the rotating shaft sleeve with one end of the adjusting pipe, the clamp comprises a clamp handle, a main sleeve fixed on the clamp handle, a rocking handle, a threaded hole, an eccentric wheel, a rotating shaft sleeve and a connecting rod, wherein the threaded hole is close to one end of the main sleeve fixed on the clamp handle, the eccentric wheel, the rotating shaft sleeve and the connecting rod are located in the main sleeve, the rocking handle is located outside the main sleeve and used for driving a screw to rotate, one end of the connecting rod is connected with the rotating shaft sleeve, and the other end of the connecting rod is hinged with one end of an adjusting pipe through a second hinge shaft.
The angle-adjustable clamp applying forceps with the chuck can adjust the angle of the chuck according to actual needs, specifically, the rocking handle drives the screw rod to drive the eccentric wheel to rotate, and then the connecting rod drives the adjusting pipe to rotate around the first hinge shaft so as to adjust the angle of the adjusting pipe, so that the angle of the chuck arranged on the adjusting pipe is adjusted; on the other hand, because the threaded hole is close to one end of the main sleeve fixed on the forceps handle, in the operation, after the chuck extends into the human body, the eccentric wheel can still be driven to rotate by the rocking handle driving screw rod, and then the adjusting pipe is driven to rotate around the first hinge shaft by the connecting rod to adjust the angle of the adjusting pipe, so that the angle of the chuck arranged on the adjusting pipe is adjusted to meet the clamping requirement.
Preferably, the push rod comprises a main push rod and an adjusting push rod which are hinged and connected through a third hinge shaft, the main push rod is located in the main sleeve, the adjusting push rod is located in the adjusting pipe, the third hinge shaft is located in the hinged and connected position of the main sleeve and the adjusting pipe, and the third hinge shaft is coaxial or parallel to the first hinge shaft. Therefore, the push rod can adapt to the rotation of the adjusting pipe, and the clamp handle can move along the outer sleeve pipe through the driving push rod to drive the clamp head to open and close.
Preferably, the side wall of the main sleeve close to the first hinged shaft is provided with a circular arc limiting hole extending around the circumferential direction of the first hinged shaft, the side wall of the adjusting pipe is provided with a limiting pin, and the limiting pin extends into the circular arc limiting hole and is used for limiting the rotating angle of the adjusting pipe around the first hinged shaft.
Preferably, the locking and anti-misoperation mechanism comprises a threaded rod matched with the threaded hole, an inner polished rod coaxially arranged at the inner end of the threaded rod and an outer polished rod coaxially arranged at the outer end of the threaded rod, the eccentric wheel is arranged on the inner polished rod, the locking and anti-misoperation mechanism comprises a locking nut matched with the threaded rod, an outer shaft sleeve sleeved on the outer polished rod and an end stop block arranged at the end part of the outer polished rod, the locking nut is positioned outside the main sleeve, the outer shaft sleeve is positioned between the locking nut and the end stop block, and one end of the crank is fixed on the outer shaft sleeve;
when the angle of the adjusting pipe is adjusted, the locking nut is screwed to move towards the end part stop block, the locking nut is separated from the outer wall of the main sleeve until the outer sleeve is locked and fixed on the end part stop block by the locking nut, at the moment, the rocking handle is rotated to drive the screw rod and the eccentric wheel to rotate, and then the adjusting pipe is driven to rotate around the first articulated shaft through the connecting rod to adjust the angle of the adjusting pipe; therefore, the rocking handle driving screw cannot be influenced to drive the eccentric wheel to rotate, and the adjusting pipe is driven to rotate around the first hinge shaft through the connecting rod so as to adjust the angle of the adjusting pipe;
after the angle of the adjusting pipe is adjusted to a set angle, the locking nut is screwed and rotated to move the locking nut towards the main sleeve, the locking nut is separated from the outer shaft sleeve until the locking nut is locked on the outer wall of the main sleeve, so that the screw rod and the eccentric wheel are locked and fixed on the main sleeve, and at the moment, the rocking handle cannot drive the screw rod to rotate.
Although the angle of the chuck can be adjusted according to the requirement, the requirement of actual clamping can be facilitated, and the adaptability is improved; but also brings the problems that in the operation process, the angle of the adjusting pipe and the chuck is changed due to the fact that an operator touches or collides the rocking handle carelessly and the driving screw rod rotates, so that the normal operation of the operation is influenced, and even the operation fails; in order to solve the problem, the scheme is provided with a locking and anti-misoperation rotating mechanism, and particularly, after the angle of the adjusting pipe is adjusted to a set angle, the adjusting pipe is locked on the outer wall of the main sleeve through a locking nut, so that the angle of the adjusting pipe is locked; more importantly, at this moment, lock nut and outer axle sleeve separation, outer axle sleeve can rotate for outer polished rod, the rocking handle can not drive screw rotate, so, even appear operating personnel touching or colliding the rocking handle carelessly in the operation process, can not drive screw rotate yet (although lock nut locks on the outer wall of main sleeve pipe, the nut can't be toward main sleeve pipe internal rotation, but still can be toward main sleeve pipe external rotation), thereby can avoid in the operation process, because of operating personnel touching or colliding the rocking handle carelessly, and drive screw rotates, make the angle of regulating tube and chuck change, and influence the operation and normally go on, lead to the problem of operation failure even.
Preferably, the anti-misoperation locking mechanism comprises a return spring, an annular limiting groove arranged on the push rod, a first guide hole and a second guide hole which are arranged on the side wall of the main sleeve, a sliding guide rod arranged in the first guide hole in a sliding manner, a sliding limiting rod arranged in the second guide hole in a sliding manner, and a connecting piece for connecting the sliding guide rod and the sliding limiting rod, wherein the axes of the screw rod, the sliding guide rod and the sliding limiting rod are parallel, the sliding guide rod and the sliding limiting rod are positioned on the same side of the locking nut, the first end of the sliding guide rod is abutted against the end surface of the locking nut under the action of the return spring, the second end of the sliding guide rod, the sliding limiting rod and the connecting piece are positioned on the same side of the push rod, and the sliding limiting rod and the locking nut are positioned on two sides of the push rod,
when the locking nut is locked on the outer wall of the main sleeve, the sliding limiting rod is positioned on the outer side of the annular limiting groove; when the outer shaft sleeve is locked and fixed on the end stop block by the locking nut, the sliding limiting rod is inserted into the annular limiting groove under the action of the reset spring.
In actual operation, irregular operation may exist, after the angle of the chuck is adjusted to a set angle, the operation forgets to lock the locking nut on the outer wall of the main sleeve (the locking nut keeps the outer sleeve locked and fixed on the end stop block), so that the angle of the chuck cannot be locked in the operation process, and the problem that the angle of the adjusting tube and the chuck is changed due to the fact that an operator touches or collides the rocking handle carelessly and the driving screw rotates in the operation process, so that the normal operation is influenced, and even the operation fails cannot be solved; to this end, the present solution provides a locking mechanism against incorrect operation, to solve this problem, in particular,
in actual operation, if the operation is carried out according to the specification, after the angle of the chuck is adjusted to a set angle, the locking nut is locked on the outer wall of the main sleeve, and at the moment, the sliding limiting rod is positioned on the outer side of the annular limiting groove, so that the angle of the adjusting pipe can be locked, and the situation that an operator touches or collides the rocking handle carelessly to drive the screw rod to rotate in the operation process can be avoided; the sliding limiting rod is positioned on the outer side of the annular limiting groove, so that the clamp handle cannot be influenced to drive the push rod to move along the outer sleeve to drive the chuck to open and close, and the clamping function of the chuck is realized;
if the operation is not standard, after the angle of the chuck is adjusted to a set angle, the operation forgets to lock the locking nut on the outer wall of the main sleeve, at the moment, the sliding limiting rod is inserted into the annular limiting groove under the action of the reset spring, so that the position of the push rod is locked by the sliding limiting rod, an operator cannot drive the push rod to move along the outer sleeve through the clamp handle, cannot drive the chuck to open and close, and cannot work the clamp applying tool; therefore, an operator is reminded that the operation is not standard and the locking nut is not locked on the outer wall of the main sleeve, so that the operator can lock the locking nut on the outer wall of the main sleeve according to the standard operation; thereby effectively solve probably to have the operation of irregularity in actual operation, after the chuck angle modulation to the set angle, the operation has forgotten the problem of locking lock nut on main sleeve's outer wall.
Preferably, the connection is located outside the main casing.
Preferably, the first end of the sliding guide rod is provided with a hemispherical protrusion, and the hemispherical protrusion abuts against the end face of the lock nut under the action of the return spring.
Preferably, the outer wall of the main sleeve where the threaded hole is located is provided with a boss, the end face of the boss is perpendicular to the axis of the screw, and the threaded hole penetrates through the boss.
Preferably, the rocking handles are distributed along the radial extension of the screw.
The invention has the beneficial effects that: not only can adjust the angle of chuck according to actual needs, in operation moreover, can stretch into human inside back at the chuck, can adjust the angle of chuck according to actual needs to adapt to the centre gripping needs.
Drawings
Figure 1 is a front view of the adjustable angle chuck clip applier of the present invention.
Figure 2 is a schematic diagram of one configuration of the adjustable angle chuck applier clamp of the present invention.
Fig. 3 is a partially enlarged view of a portion a in fig. 1.
Fig. 4 is a partially enlarged view at B in fig. 2.
Fig. 5 is a partially enlarged view at C in fig. 2.
Fig. 6 is a partial structural schematic diagram of the anti-misoperation locking mechanism and the locking and anti-collision rotating mechanism of the angle-adjustable clamp applying forceps of the invention.
In the figure:
a forceps handle 1, a fixed handle 1.1 and a rotating handle 1.2;
a chuck 2;
the device comprises an outer sleeve 3, a main sleeve 3.1, an adjusting pipe 3.2, a first articulated shaft 3.3, an arc limiting hole 3.4 and a limiting pin 3.5;
the angle adjusting mechanism 4, the screw rod 4.0, the threaded rod 4.01, the inner polished rod 4.02, the outer polished rod 4.03, the rocking handle 4.1, the connecting rod 4.2 surface, the second articulated shaft 4.3, the eccentric wheel 4.4 and the rotating shaft sleeve 4.5;
the push rod 5, the main push rod 5.1, the adjusting push rod 5.2 and the third hinge shaft 5.3;
the locking and anti-collision rotating mechanism 6, the locking nut 6.1, the outer shaft sleeve 6.2 and the end part stop dog 6.3 are arranged;
the anti-misoperation locking mechanism 7 comprises an annular limiting groove 7.1, a sliding guide rod 7.2, a return spring 7.3, a sliding limiting rod 7.4 and a connecting piece 7.5.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention are clearly explained and illustrated below with reference to the accompanying drawings, but the following embodiments are only preferred embodiments of the present invention, and not all embodiments. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative effort belong to the protection scope of the present invention.
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present scheme and are not construed as limiting the scheme of the present invention.
These and other aspects of embodiments of the invention will be apparent with reference to the following description and attached drawings. In the description and drawings, particular embodiments of the invention have been disclosed in detail as being indicative of some of the ways in which the principles of the embodiments of the invention may be practiced, but it is understood that the scope of the embodiments of the invention is not limited thereby. On the contrary, the embodiments of the invention include all changes, modifications and equivalents coming within the spirit and terms of the claims appended hereto.
In the description of the present invention, it is to be understood that the terms "thickness", "upper", "lower", "horizontal", "top", "bottom", "inner", "outer", "circumferential", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., and "several" means one or more unless specifically limited otherwise.
In the present invention, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being permanently connected, detachably connected, or integral; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The first embodiment is as follows: as shown in fig. 1, 2, 3, 4 and 5, an angle-adjustable clamp for a clamp head comprises a clamp handle 1, a clamp head 2, an outer sleeve 3 fixed on the clamp handle, a push rod 5 arranged in the outer sleeve and an angle adjusting mechanism 4. One end of the push rod is connected with the clamp handle, the other end of the push rod is connected with the clamp head, and the clamp handle is used for driving the push rod to move along the outer sleeve so as to drive the clamp head to open and close.
The outer sleeve 3 comprises a main sleeve 3.1 and an adjusting pipe 3.2, one end of the main sleeve is fixed on the forceps handle, and the other end of the main sleeve is hinged with one end of the adjusting pipe through a first hinge shaft 3.3. The chuck is arranged at the other end of the adjusting pipe.
The angle adjusting mechanism 4 is used for driving the adjusting pipe to rotate around the first articulated shaft and comprises a threaded hole formed in the side wall of the main sleeve, a screw rod 4.0 matched with the threaded hole, an eccentric wheel 4.4 and a rocking handle 4.1 which are arranged on the screw rod, a rotating shaft sleeve 4.5 sleeved on the eccentric wheel and a connecting rod 4.2 connecting the rotating shaft sleeve and one end of the adjusting pipe. The threaded hole is close to one end of a main sleeve fixed on the forceps handle. The eccentric wheel, the rotating shaft sleeve and the connecting rod are positioned in the main sleeve. The rocking handle is arranged outside the main sleeve and used for driving the screw rod to rotate. One end of the connecting rod is connected with the rotating shaft sleeve, and the other end of the connecting rod is hinged with one end of the adjusting pipe through a second hinge shaft 4.3. In this embodiment, the screw rod is parallel with the first hinge shaft, the screw rod extends along the radial direction of the main sleeve, and the rocking handle extends along the radial direction of the screw rod.
The angle-adjustable clamp applying forceps for the chuck can adjust the angle of the chuck according to actual needs, specifically, the rocking handle drives the screw rod to drive the eccentric wheel to rotate, and then the connecting rod drives the adjusting pipe to rotate around the first hinge shaft so as to adjust the angle of the adjusting pipe, so that the angle of the chuck arranged on the adjusting pipe is adjusted; on the other hand, because the threaded hole is close to one end of the main sleeve fixed on the forceps handle, in the operation, after the chuck extends into the human body, the eccentric wheel can still be driven to rotate by the rocking handle driving screw rod, and then the adjusting pipe is driven to rotate around the first articulated shaft by the connecting rod to adjust the angle of the adjusting pipe, so that the angle of the chuck arranged on the adjusting pipe is adjusted to meet the clamping requirement.
Specifically, the forceps handle includes fixed handle 1.1 and rotates handle 1.2 of setting on fixed handle through the axostylus axostyle rotation. One end of the main sleeve is fixed on a fixed handle of the forceps handle; one end of the push rod is connected with a rotating handle of the forceps handle, and the rotating handle of the forceps handle is used for driving the push rod to move along the outer sleeve so as to drive the chuck to open and close.
Further, as shown in fig. 2 and 4, the push rod 5 includes a main push rod 5.1 and an adjusting push rod 5.2 which are hinged and connected through a third hinge shaft 5.3, the main push rod is located in the main sleeve, the adjusting push rod is located in the adjusting pipe, the third hinge shaft is located in the hinged and connected portion of the main sleeve and the adjusting pipe, and the third hinge shaft is coaxial or parallel to the first hinge shaft. Therefore, the push rod can adapt to the rotation of the adjusting pipe, and the clamp handle can move along the outer sleeve pipe through the driving push rod to drive the clamp head to open and close.
Further, as shown in fig. 1 and 3, an arc limiting hole 3.4 extending around the circumferential direction of the first hinge shaft is formed in the side wall of the main sleeve close to the first hinge shaft, a limiting pin 3.5 is arranged on the side wall of the adjusting pipe, and the limiting pin extends into the arc limiting hole and is used for limiting the rotation angle of the adjusting pipe around the first hinge shaft. The spacing pin is parallel to the first hinge shaft. In this embodiment, the rotation angle of the adjusting pipe around the first hinge shaft is 0 to 30 degrees.
Further, as shown in fig. 1, 2 and 6, the angle-adjustable clip applier further comprises a locking and anti-collision rotating mechanism 6. The screw rod 4.0 comprises a threaded rod 4.01 matched with the threaded hole, an inner polished rod 4.02 coaxially arranged at the inner end of the threaded rod and an outer polished rod 4.03 coaxially arranged at the outer end of the threaded rod. The inner polish rod is positioned in the main sleeve, and the outer polish rod is positioned outside the main sleeve. The eccentric wheel is arranged on the inner polished rod. The outer diameter of the inner polished rod is smaller than the inner diameter of the threaded rod. The outer diameter of the outer polished rod is smaller than the inner diameter of the threaded rod. The locking and anti-misoperation rotating mechanism comprises a locking nut 6.1 matched with the threaded rod, an outer shaft sleeve 6.2 sleeved on the outer polished rod and an end stop 6.3 arranged at the end part of the outer polished rod. The locking nut is positioned outside the main sleeve, and the outer sleeve is positioned between the locking nut and the end part stop block. One end of the rocking handle is fixed on the outer shaft sleeve.
When the angle of the adjusting pipe is adjusted, the locking nut is screwed to move towards the end part stop block, the locking nut is separated from the outer wall of the main sleeve until the outer sleeve is locked and fixed on the end part stop block by the locking nut, at the moment, the rocking handle is rotated to drive the screw rod and the eccentric wheel to rotate, and then the adjusting pipe is driven to rotate around the first articulated shaft through the connecting rod to adjust the angle of the adjusting pipe; therefore, the rocking handle driving screw cannot be influenced to drive the eccentric wheel to rotate, and the adjusting pipe is driven to rotate around the first hinge shaft through the connecting rod so as to adjust the angle of the adjusting pipe.
As shown in fig. 6, after the angle of the adjusting tube is adjusted to a set angle, the locking nut is screwed to move toward the main sleeve, the locking nut is separated from the outer sleeve until the locking nut is locked on the outer wall of the main sleeve, so that the screw and the eccentric wheel are locked and fixed on the main sleeve, and at this time, the rocking handle cannot drive the screw to rotate. Although the angle of the chuck can be adjusted according to the requirement, the requirement of actual clamping can be facilitated, and the adaptability is improved; but also brings the problems that in the operation process, the angle of the adjusting pipe and the chuck is changed due to the fact that an operator touches or collides the rocking handle carelessly and the driving screw rod rotates, so that the normal operation of the operation is influenced, and even the operation fails; in order to solve the problem, the scheme is provided with a locking and anti-misoperation rotating mechanism, and particularly, after the angle of the adjusting pipe is adjusted to a set angle, the adjusting pipe is locked on the outer wall of the main sleeve through a locking nut, so that the angle of the adjusting pipe is locked; more importantly, at this moment, lock nut and outer axle sleeve separation, outer axle sleeve can rotate for outer polished rod, the rocking handle can not drive screw rotate, so, even appear operating personnel touching or colliding the rocking handle carelessly in the operation process, can not drive screw rotate yet (although lock nut locks on the outer wall of main sleeve pipe, the nut can't be toward main sleeve pipe internal rotation, but still can be toward main sleeve pipe external rotation), thereby can avoid in the operation process, because of operating personnel touching or colliding the rocking handle carelessly, and drive screw rotates, make the angle of regulating tube and chuck change, and influence the operation and normally go on, lead to the problem of operation failure even.
Furthermore, a boss is arranged on the outer wall of the main sleeve where the threaded hole is located, the end face of the boss is perpendicular to the axis of the screw rod, and the threaded hole penetrates through the boss. When the locking nut is locked on the outer wall of the main sleeve, the end face of the locking nut is tightly pressed on the end face of the boss, so that the locking nut is locked on the outer wall of the main sleeve.
Further, as shown in fig. 6, the adjustable angle clip applier can further include a locking mechanism 7 for preventing erroneous operation. The anti-misoperation locking mechanism comprises a return spring 7.3, an annular limiting groove 7.1 arranged on the push rod, a first guide hole and a second guide hole which are arranged on the side wall of the main sleeve, a sliding guide rod 7.2 arranged in the first guide hole in a sliding manner, a sliding limiting rod 7.4 arranged in the second guide hole in a sliding manner, and a connecting piece 7.5 for connecting the sliding guide rod and the sliding limiting rod. The axes of the screw rod, the sliding guide rod and the sliding limiting rod are parallel. The sliding guide rod and the sliding limiting rod are positioned on the same side of the locking nut. The first end of the sliding guide rod is abutted against the end face of the locking nut under the action of the return spring, and the second end of the sliding guide rod, the sliding limiting rod and the connecting piece are located on the same side of the push rod. The sliding limiting rod and the locking nut are positioned on two sides of the push rod. In this embodiment, the return spring is a tension spring, the tension spring and the connecting piece are located on the same side of the main sleeve, one end of the tension spring is connected with the connecting piece, and the other end of the tension spring is connected with the outer wall of the main sleeve.
As shown in fig. 6, when the lock nut is locked to the outer wall of the main sleeve, the slide restricting lever is located outside the annular restricting groove.
When the outer shaft sleeve is locked and fixed on the end stop block by the locking nut, the sliding limiting rod is inserted into the annular limiting groove under the action of the reset spring.
In actual operation, irregular operation may exist, after the angle of the chuck is adjusted to a set angle, the operation forgets to lock the locking nut on the outer wall of the main sleeve (the locking nut keeps the outer sleeve locked and fixed on the end stop block), so that the angle of the chuck cannot be locked in the operation process, and the problem that the angle of the adjusting tube and the chuck is changed due to the fact that an operator touches or collides the rocking handle carelessly and the driving screw rotates in the operation process, so that the normal operation is influenced, and even the operation fails cannot be solved; to this end, the present solution provides a locking mechanism against incorrect operation, to solve this problem, in particular,
in actual operation, if the operation is carried out according to the specification, after the angle of the chuck is adjusted to a set angle, the locking nut is locked on the outer wall of the main sleeve, and at the moment, the sliding limiting rod is positioned on the outer side of the annular limiting groove, so that the angle of the adjusting pipe can be locked, and the situation that an operator touches or collides the rocking handle carelessly to drive the screw rod to rotate in the operation process can be avoided; the sliding limiting rod is positioned on the outer side of the annular limiting groove, so that the clamp handle cannot be influenced to drive the push rod to move along the outer sleeve to drive the clamp head to open and close, and the clamping function of the clamp head is realized;
if the operation is not standard, after the angle of the chuck is adjusted to a set angle, the operation forgets to lock the locking nut on the outer wall of the main sleeve, at the moment, the sliding limiting rod is inserted into the annular limiting groove under the action of the reset spring, so that the position of the push rod is locked by the sliding limiting rod, an operator cannot drive the push rod to move along the outer sleeve through the clamp handle, cannot drive the chuck to open and close, and cannot work the clamp applying tool; therefore, an operator is reminded that the operation is not standard and the locking nut is not locked on the outer wall of the main sleeve, so that the operator can lock the locking nut on the outer wall of the main sleeve according to the standard operation; thereby effectively solve probably to have the operation of irregularity in actual operation, after the chuck angle modulation to the set angle, the operation has forgotten the problem of locking lock nut on main sleeve's outer wall.
In this embodiment, the connector is located outside the main casing. The first end of the sliding guide rod is provided with a hemispherical bulge, and the hemispherical bulge is propped against the end face of the locking nut under the action of the reset spring.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and all simple modifications, alterations and equivalents of the above embodiments according to the technical spirit of the present invention are still within the protection scope of the technical solution of the present invention.
Claims (8)
1. An angle-adjustable clip applier with a clip, which comprises a clip handle, a clip, an outer sleeve fixed on the clip handle, a push rod arranged in the outer sleeve, wherein one end of the push rod is connected with the clip handle, the other end of the push rod is connected with the clip, the clip handle is used for driving the push rod to move along the outer sleeve so as to drive the clip to open and close, the angle-adjustable clip applier is characterized by also comprising an angle adjusting mechanism and a locking and anti-false-touch rotating mechanism, the outer sleeve comprises a main sleeve and an adjusting pipe, one end of the main sleeve is fixed on the clip handle, the other end of the main sleeve is hinged with one end of the adjusting pipe through a first hinge shaft, the clip is arranged at the other end of the adjusting pipe,
the angle adjusting mechanism is used for driving the adjusting pipe to rotate around the first hinge shaft and comprises a threaded hole formed in the side wall of the main sleeve, a screw rod matched with the threaded hole, an eccentric wheel and a rocking handle which are arranged on the screw rod, a rotating shaft sleeve sleeved on the eccentric wheel and a connecting rod for connecting the rotating shaft sleeve and one end of the adjusting pipe, wherein the threaded hole is close to one end of the main sleeve fixed on the forceps handle;
the screw rod comprises a threaded rod matched with the threaded hole, an inner polished rod coaxially arranged at the inner end of the threaded rod and an outer polished rod coaxially arranged at the outer end of the threaded rod, the eccentric wheel is arranged on the inner polished rod,
the locking and anti-misoperation rotating mechanism comprises a locking nut matched with the threaded rod, an outer shaft sleeve sleeved on the outer polished rod and an end stop block arranged at the end part of the outer polished rod, wherein the locking nut is positioned outside the main sleeve, the outer shaft sleeve is positioned between the locking nut and the end stop block, and one end of the rocking handle is fixed on the outer shaft sleeve;
when the angle of the adjusting pipe is adjusted, the locking nut is screwed to move towards the end part stop block, the locking nut is separated from the outer wall of the main sleeve until the outer sleeve is locked and fixed on the end part stop block by the locking nut, at the moment, the rocking handle is rotated to drive the screw rod and the eccentric wheel to rotate, and then the adjusting pipe is driven to rotate around the first articulated shaft through the connecting rod to adjust the angle of the adjusting pipe;
after the angle of the adjusting pipe is adjusted to a set angle, the locking nut is screwed and rotated to move the locking nut towards the main sleeve, the locking nut is separated from the outer shaft sleeve until the locking nut is locked on the outer wall of the main sleeve, so that the screw rod and the eccentric wheel are locked and fixed on the main sleeve, and at the moment, the rocking handle cannot drive the screw rod to rotate.
2. The angle-adjustable chuck forceps according to claim 1, wherein the push rod includes a main push rod and an adjusting push rod which are hingedly connected by a third hinge shaft, the main push rod is located in the main sleeve, the adjusting push rod is located in the adjusting tube, the third hinge shaft is located in a portion where the main sleeve is hingedly connected to the adjusting tube, and the third hinge shaft is coaxial with or parallel to the first hinge shaft.
3. The angle-adjustable chuck applying forceps according to claim 1, wherein the side wall of the main sleeve adjacent to the first hinge shaft is provided with a circular-arc restricting hole extending around the circumference of the first hinge shaft, and the adjusting tube is provided with a restricting pin on the upper side wall thereof, the restricting pin extending into the circular-arc restricting hole for restricting the rotation angle of the adjusting tube around the first hinge shaft.
4. The angle-adjustable chuck forceps according to claim 1, further comprising an anti-misoperation locking mechanism, wherein the anti-misoperation locking mechanism comprises a return spring, an annular limiting groove disposed on the push rod, a first guide hole and a second guide hole disposed on the side wall of the main sleeve, a sliding guide rod slidably disposed in the first guide hole, a sliding limiting rod slidably disposed in the second guide hole, and a connecting member connecting the sliding guide rod and the sliding limiting rod, wherein the axes of the screw rod, the sliding guide rod, and the sliding limiting rod are parallel, the sliding guide rod and the sliding limiting rod are located on the same side of the lock nut, the first end of the sliding guide rod abuts against the end surface of the lock nut under the action of the return spring, the second end of the sliding guide rod, the sliding limiting rod, and the connecting member are located on the same side of the push rod, and the sliding limiting rod and the lock nut are located on both sides of the push rod,
when the locking nut is locked on the outer wall of the main sleeve, the sliding limiting rod is positioned on the outer side of the annular limiting groove; when the outer shaft sleeve is locked and fixed on the end stop block by the locking nut, the sliding limiting rod is inserted into the annular limiting groove under the action of the reset spring.
5. A chuck angle adjustable clip applier according to claim 4, wherein said connecting member is located on an exterior side of the main sleeve.
6. The adjustable chuck angle clip applier of claim 4, wherein said first end of said slide guide is provided with a hemispherical protrusion which abuts against an end surface of said lock nut under the action of said return spring.
7. The angle-adjustable chuck forceps as claimed in claim 4, wherein the outer wall of the main sleeve in which the threaded hole is located has a boss, the end face of the boss is perpendicular to the axis of the screw, and the threaded hole passes through the boss.
8. A chuck angle adjustable clip applier according to claim 1, 2 or 3, wherein said rocking handles are distributed along the radial extent of said threaded rod.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110624033.3A CN113349871B (en) | 2021-06-04 | 2021-06-04 | Angle-adjustable clamp applying forceps with clamping head |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110624033.3A CN113349871B (en) | 2021-06-04 | 2021-06-04 | Angle-adjustable clamp applying forceps with clamping head |
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| Publication Number | Publication Date |
|---|---|
| CN113349871A CN113349871A (en) | 2021-09-07 |
| CN113349871B true CN113349871B (en) | 2022-07-05 |
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| CN202110624033.3A Active CN113349871B (en) | 2021-06-04 | 2021-06-04 | Angle-adjustable clamp applying forceps with clamping head |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117338369B (en) * | 2023-11-23 | 2024-04-02 | 桐庐优视医疗器械有限公司 | Medical clip applier |
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| CN206342527U (en) * | 2016-08-28 | 2017-07-21 | 杭州桐庐医达器械设备有限公司 | A kind of turning titanium clamp pincers |
| CN209391992U (en) * | 2018-03-07 | 2019-09-17 | 江苏省肿瘤防治研究所（江苏省肿瘤医院） | Via intranasal application approach nasopharynx biopsy naso-pharyngeal biopsy forceps |
| CN111265269A (en) * | 2018-12-05 | 2020-06-12 | 苏州英途康医疗科技有限公司 | Medical instrument |
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2021
- 2021-06-04 CN CN202110624033.3A patent/CN113349871B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206342527U (en) * | 2016-08-28 | 2017-07-21 | 杭州桐庐医达器械设备有限公司 | A kind of turning titanium clamp pincers |
| CN209391992U (en) * | 2018-03-07 | 2019-09-17 | 江苏省肿瘤防治研究所（江苏省肿瘤医院） | Via intranasal application approach nasopharynx biopsy naso-pharyngeal biopsy forceps |
| CN111265269A (en) * | 2018-12-05 | 2020-06-12 | 苏州英途康医疗科技有限公司 | Medical instrument |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117338369B (en) * | 2023-11-23 | 2024-04-02 | 桐庐优视医疗器械有限公司 | Medical clip applier |
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| CN113349871A (en) | 2021-09-07 |
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