CN112704561A - Uterine cavity resectoscope - Google Patents
Uterine cavity resectoscope Download PDFInfo
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- CN112704561A CN112704561A CN202110323865.1A CN202110323865A CN112704561A CN 112704561 A CN112704561 A CN 112704561A CN 202110323865 A CN202110323865 A CN 202110323865A CN 112704561 A CN112704561 A CN 112704561A
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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
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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
- A61B2018/00315—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for treatment of particular body parts
- A61B2018/00559—Female reproductive organs
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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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Abstract
The invention discloses a uterine cavity resectoscope, which comprises a resectoscope body and a cutting blade, wherein the cutting blade is arranged on the uterine cavity resectoscope body; the endoscope body is provided with a working channel for being arranged on the electric cutter; the head end of the lens body is provided with a lens and an illumination piece, and the lens inclines towards the direction of the working channel by a preset angle; wherein, the electric knife includes: electrically cutting a ring; the electric cutting rod is connected with the electric cutting ring; a preset included angle is formed between the electric cutting ring and the electric cutting rod, and the range of the preset included angle is an acute angle; the electric cutting rod comprises a first extension rod, a second extension rod and a base rod, the first extension rod and the second extension rod are respectively connected to the base rod, two ends of the electric cutting ring are respectively installed at the end parts, far away from the base rod, of the first extension rod and the second extension rod, a first clamping groove is formed in the preset position of the tail end of the base rod, and a first locking piece is arranged in the preset position of the mirror body; in the operation process, the head end of the electric cutter can be positioned in the center of the visual field of the lens, so that the operation is convenient; the electric knife of the uterine cavity electric cutting mirror can rotate relative to the mirror body, and the operation is convenient.
Description
Technical Field
The invention relates to the field of uterine cavity resectoscope, and further relates to a uterine cavity resectoscope.
Background
The hysteroscope is a new, minimally invasive gynecological diagnosis and treatment technology, is a light source endoscope for intrauterine examination and treatment, can enter the uterine cavity by utilizing the front part of the endoscope body, has amplification effect on the observed part, and becomes a first-choice examination instrument for gynecological hemorrhagic diseases and intrauterine pathological changes by virtue of intuition and accuracy.
The electrode tip used by the traditional uterine cavity resectoscope comprises a ring electrode, a needle electrode, a roll electrode, a ball electrode and the like, the head end of the electrode is positioned in front of the lens, the electrode tip and the rod part are not coaxial, the electrode rod is fixed on the endoscope, and the electrode tip and the endoscope body are coaxial. Therefore, in the working state, the electrode structure of the whole endoscope and the endoscope have a definite locking relation, and the relative positions of the electrode head end and the resectoscope are fixed.
The traditional uterine cavity resectoscope has the following defects: firstly, the electrode tip and the resectoscope are relatively fixed, and if the position of the electrode tip needs to be adjusted in the operation process, the electrode tip and the resectoscope need to rotate together with the whole resectoscope and a connecting device (an illumination light guide beam and a camera) thereof, so that the interference on the direction sense of an operating doctor is easily caused, the operating doctor needs long adaptation time, and the resectoscope is very inconvenient; second, the position relatively fixed of electrode head end and resectoscope, consequently, observation angle is fixed, and the electrode rod can shelter from the operation field of vision, and the operator can't see the position of cutting clearly completely, has operation hidden danger and operation risk.
In view of the foregoing, there is a need for an improvement in existing hysteroscopy resectoscopes.
Disclosure of Invention
In view of the above technical problems, an object of the present invention is to provide a hysteroscope, wherein the lens of the hysteroscope faces the working channel of the scope body, and during the operation, the head end of the electric knife can be located at the center of the visual field of the lens, which is convenient for the operation; the electric knife of the uterine cavity electric cutting mirror can rotate relative to the mirror body, and the operation is convenient.
In order to achieve the above object, an object of the present invention is to provide a hysteroscope, comprising:
an electric knife;
the endoscope body is provided with a working channel for being arranged on the electric cutter; a lens and an illuminating piece are installed at the head end of the lens body, and the lens inclines towards the direction of the working channel by a preset angle;
wherein, the electric knife includes:
electrically cutting a ring;
the electric cutting ring is connected to the electric cutting rod; a preset included angle is formed between the electric cutting ring and the electric cutting rod, and the range of the preset included angle is an acute angle;
the electric cutting rod comprises a first extension rod, a second extension rod and a base rod, the first extension rod and the second extension rod are respectively connected to the base rod, two ends of the electric cutting ring are respectively installed at the end parts, far away from the base rod, of the first extension rod and the second extension rod, a first clamping groove is formed in a preset position of the tail end of the base rod, and a first locking piece is arranged in a preset position of the mirror body;
when the electric cutter is arranged in the working channel, the first clamping groove corresponds to the first locking piece, and the first locking piece can be matched with the electric cutting rod of the electric cutter to limit the electric cutting rod along the length extension direction of the electric cutting rod and allow the electric cutting rod to rotate relative to the mirror body.
Preferably, the base rod is further provided with a second clamping groove, and the second clamping groove is located at the bottom of the first clamping groove and is communicated with the first clamping groove;
the mirror body further comprises a second locking piece, wherein the first locking piece is provided with a sliding channel, and the second locking piece is slidably arranged on the sliding channel;
in a first state, the bottom end of the first locking piece enters the first clamping groove, so that the electric cutting rod can be axially limited and is allowed to rotate relative to the endoscope body;
in a second state, the bottom end of the first locking piece enters the first clamping groove, the bottom end of the second locking piece enters the second clamping groove, the first locking piece is used for axially limiting the electric cutting rod, and the second locking piece is used for radially limiting the electric cutting rod.
Preferably, the base rod is further provided with a third clamping groove, and the third clamping groove is located on the side wall of the first clamping groove and is communicated with the first clamping groove;
the endoscope body further comprises a second locking piece and a rotation limiting piece, the first locking piece is provided with a sliding channel, a locking channel and a rotation space, the rotation limiting piece is provided with a rotation part, a pushing part and a locking part, and the rotation part is rotatably arranged in the rotation space;
the first locking piece is pressed, so that the bottom end of the first locking piece enters the first clamping groove, the first locking piece can axially limit the electric cutting rod, and the electric cutting rod is allowed to rotate relative to the endoscope body;
and continuously pressing the second locking piece relative to the first locking piece, wherein in the process that the second locking piece descends in the sliding channel, the bottom end of the second locking piece pushes the pushing part of the rotation limiting piece, the rotating part of the rotation limiting piece rotates relative to the first locking piece, and the locking part of the rotation limiting piece penetrates out of the locking channel and enters the third clamping groove to radially limit the electric cutting rod.
Preferably, the base rod is further provided with a third clamping groove, and the third clamping groove is located on the side wall of the first clamping groove and is communicated with the first clamping groove;
the mirror body further comprises a rotation limiting part, the first locking part is further provided with a locking channel and a rotation space, the rotation limiting part is provided with a rotation part, a pushing part and a locking part, and the rotation part is rotatably arranged in the rotation space;
when the second locking piece slides in the sliding channel of the first locking piece and moves into the second clamping groove, the bottom end of the second locking piece is firstly contacted with the pushing part of the rotation limiting piece and pushes the pushing part of the rotation limiting piece, the rotating part of the rotation limiting piece rotates relative to the first locking piece, the locking part of the rotation limiting piece penetrates out of the locking channel and enters the third clamping groove, the second locking piece continues to move in the sliding channel, and the bottom end of the second locking piece moves into the second clamping groove.
Preferably, the electric knife further comprises a sleeve, the sleeve is sleeved on the electric cutting rod, and a preset distance is reserved between the head end of the sleeve and the electric cutting ring, so that the sleeve is prevented from shielding the view of the electric cutting ring.
Preferably, the sleeve comprises a first sleeve and a second sleeve, the first sleeve is close to the electric cutting ring, and the second sleeve is far away from the electric cutting ring; the joint of the first sleeve and the second sleeve is in transition through an arc-shaped structure.
Preferably, the first extension rod, the second extension rod and the junction of base rod has the kink, the kink with the electrotomy ring is located respectively first extension rod, the same one side of second extension rod, the center of electrotomy ring with the center coincidence of base rod.
Preferably, the first locking groove is a ring-shaped locking groove formed at a predetermined position of the electric cutting rod.
Preferably, the distance between the first extension rod and the second extension rod is smaller than the diameter of the resectioning ring, and the first extension rod and the second extension rod are respectively located above the center of the resectioning ring.
Preferably, the angle at which the lens is inclined towards the direction of the working channel is 15 ° to 30 °.
Compared with the prior art, the uterine cavity resectoscope provided by the invention has at least one of the following beneficial effects:
1. according to the uterine cavity resectoscope, the lens of the uterine cavity resectoscope faces to the working channel of the endoscope body, and the head end of the electric cutter can be positioned in the center of the visual field of the lens in the operation process, so that the operation is convenient;
2. according to the uterine cavity electric cutting mirror provided by the invention, in the using process, the electric cutter of the uterine cavity electric cutting mirror can rotate relative to the mirror body, the position and the angle of the head end of the electric cutter are changed according to the using requirement, and meanwhile, the position and the angle of the mirror body are kept unchanged, so that the operation of an operator is facilitated;
3. according to the uterine cavity electric cutting mirror provided by the invention, a preset angle is formed between the electric cutting ring and the electric cutting rod of the electric cutting knife, so that better cutting can be realized in the using process.
4. According to the uterine cavity resectoscope, the first locking piece and the second locking piece can be used for carrying out independent axial positioning or simultaneous axial positioning and radial positioning on the resectoscope, an operator can automatically switch two working modes according to needs, and various using requirements are met.
Drawings
The above features, technical features, advantages and modes of realisation of the present invention will be further described in the following detailed description of preferred embodiments thereof, which is to be read in connection with the accompanying drawings.
FIG. 1 is a perspective view of a hysteroscope resectoscope of a preferred embodiment of the present invention;
FIG. 2 is a cross-sectional view of a hysteroscope resectoscope of a preferred embodiment of the present invention;
FIG. 3 is an enlarged view at A in FIG. 2;
FIG. 4 is an enlarged view at B in FIG. 2;
FIG. 5 is a front view of a hysteroscope resectoscope of a preferred embodiment of the present invention;
FIG. 6 is a top view of the electric cutter head end of the preferred embodiment of the present invention;
FIG. 7 is a side view of the head end of an electric cutting knife in accordance with a preferred embodiment of the present invention;
FIG. 8 is a partial cross-sectional view of a hysteroscope resectoscope of a second preferred embodiment of the present invention;
FIG. 9 is a partial cross-sectional view of a first state of a hysteroscope resectoscope of a second preferred embodiment of the present invention;
FIG. 10 is a partial cross-sectional view of a second state of the hysteroscope resectoscope of the second preferred embodiment of the present invention;
fig. 11 is a partial sectional view of a hysteroscope resectoscope of a third preferred embodiment of the present invention.
The reference numbers illustrate:
the endoscope comprises an endoscope body 1, a working channel 10, a lens mounting position 11, an illumination mounting position 12, a lens 13, an illumination piece 14, an electrotome 2, an electrotome rod 21, a first clamping groove 210, a bending part 211, a first extension rod 212, a second extension rod 213, a base rod 214, an electrotome ring 22, a sleeve 23, a first sleeve 231, a second sleeve 232, a holding piece 24, a first locking piece 3 and a locking buckle 31; the locking device comprises a second locking member 4, a second locking groove 2140, a sliding channel 30, a rotation limiting member 5, a rotating part 51, a pushing part 52, a locking part 53, an elastic member 54, a third locking groove 2141, a locking channel 32 and a rotating space 33.
Detailed Description
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following description will be made with reference to the accompanying drawings. It is obvious that the drawings in the following description are only some examples of the invention, and that for a person skilled in the art, other drawings and embodiments can be derived from them without inventive effort.
For the sake of simplicity, only the parts relevant to the invention are schematically shown in the drawings, and they do not represent the actual structure as a product. In addition, in order to make the drawings concise and understandable, components having the same structure or function in some of the drawings are only schematically illustrated or only labeled. In this document, "one" means not only "only one" but also a case of "more than one".
It should be further understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.
In this context, it is to be understood that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, in the description of the present application, the terms "first", "second", and the like are used only for distinguishing the description, and are not intended to indicate or imply relative importance.
Example 1
Referring to the accompanying drawings 1 to 7 of the specification, the invention provides a hysteroscope, the lens of which is inclined towards the direction of a working channel on the scope body, during operation, the head end of an electric cutter can be positioned in the visual field of the lens, preferably in the center of the visual field of the lens, so that an operator can obtain a complete image of the scope body during operation, and the operation of the operator is convenient; in the operation process, the electric knife of the uterine cavity electric cutting mirror can rotate relative to the mirror body of the uterine cavity electric cutting mirror, so that the position of the mirror body can be kept unchanged in the operation process, the position of the electric knife can be changed according to operation needs, and the use effect is improved.
Referring to the attached drawings 1, 2 and 5 of the specification, in particular, the uterine cavity resectoscope comprises a scope body 1 and an electrotome 2. Wherein the endoscope body 1 is provided with a working channel 10 extending along the length direction of the endoscope body 1, and the electric cutting knife 2 is suitable for being arranged in the working channel 10 of the endoscope body 1. The head end of the mirror body 1 is provided with a lens mounting position 11 and an illumination mounting position 12. The mirror body 1 further has a lens 13 mounted on the lens mounting position 11 and an illuminating member 14 mounted on the illumination mounting position 12.
The lens 13 is inclined toward the direction of the working channel 10 by a predetermined angle. When the electric knife 2 is installed in the working channel 10, the lens 13 faces the head end of the electric knife 2, and the head end of the electric knife 2 is located in the visual field of the lens 13.
Preferably, the inclination angle of the lens 13 is 15 ° to 30 °. When the electric knife 2 is installed in the working channel 10, the head end of the electric knife 2 is located at the center of the visual field of the lens 13, and the image of the head end of the electric knife 2 can be better obtained through the lens 13, so that the operation experience of an operator is improved.
Referring to the specification, fig. 3, 4, 6 and 7, the electric knife 2 comprises an electric cutting rod 21, an electric cutting ring 22 and a sleeve 23, wherein the electric cutting ring 22 is connected to the electric cutting rod 21; the sleeve 23 is sleeved on the head end of the electric cutting rod 21, and a preset distance is provided between the head end of the sleeve 23 and the electric cutting ring 22, so as to avoid the sleeve 23 blocking the view of the electric cutting ring 22.
Referring to the description and the attached figure 4, the tail end of the mirror body 1 is provided with a first locking piece 3. When the electric cutting knife 2 is installed in the working channel 10 of the mirror body 1, the first locking piece 3 can cooperate with the electric cutting rod 21 of the electric cutting knife 2 to limit the electric cutting rod 21 along the length extension direction of the electric cutting rod 21 and allow the electric cutting rod 21 to rotate relative to the mirror body 1.
In the preferred embodiment, after the electric knife 2 is installed in the working channel 10 of the scope body 1, the first locking member 3 is operated to switch the first locking member 3 to a locking state, so as to lock the electric knife 2.
When the first locking piece 3 is in the locking state, the first locking piece 3 can limit the electric cutting rod 21 in the length extending direction of the electric cutting rod 21, and the electric cutting rod 21 is prevented from being pulled out or pushed in relative to the mirror body 1. When the first lock 3 is in the locked state, the operator of the electric cutting lever 21 can operate the electric cutting lever 21 to rotate relative to the scope 1, change the position of the electric cutting ring 22, and cut different parts as required.
Referring to fig. 4 in the specification, the first locking member 3 includes a locking buckle 31, and the locking buckle 31 is movably mounted on the mirror body 1 up and down. The tail end of the endoscope body 1 is provided with a mounting hole at a preset position, the locking buckle 31 is mounted in the mounting hole at the tail end of the endoscope body 1, and the locking buckle 31 can move up and down in the mounting hole to switch between a locking state and an unlocking state. Illustratively, when the latch 31 is pulled out upward, the latch 31 is in an unlocked state, and when the latch 31 is pressed downward to a lower position, the latch 31 is in a locked state.
The preset position of the tail end of the electric cutting rod 21 is provided with a first clamping groove 210 extending along the circumferential direction of the electric cutting rod 21. When the electric knife 2 is installed in the working channel 10 of the scope body 1, the position of the first clamping groove 210 of the electric cutting rod 21 corresponds to the position of the locking buckle 31 on the scope body 1. When the operator operates the first locking member 3 to switch to the locking state, the bottom end of the locking buckle 31 is clamped in the first clamping groove 210 of the electric cutting rod 21, so as to limit the electric cutting rod 21 in the length extending direction of the electric cutting rod 21; when the electric cutting rod 21 is rotated, the tail end of the locking buckle 31 can move in the first slot 210 along the length extension direction of the first slot 210.
Preferably, the first engaging groove 210 is an annular engaging groove surrounding a predetermined position of the electric cutting rod 21, and the electric cutting rod 21 can rotate within the working channel 10 of the scope body 1 for 360 ° without dead angle. Optionally, the angle of extension of the first slot 210 along the circumference of the electrical cutting rod 21 is less than 360 °, that is, the angle of rotation of the electrical cutting rod 21 in the working channel 10 is less than 360 °, and can only be rotated by a preset angle.
The uterine cavity resectoscope provided by the invention can realize 360-degree observation without dead angle, effectively avoids the shielding of the electrode rod 21 on the operation visual field, can realize that an operator can see the cut part clearly under the optimal visual angle, avoids the hidden operation danger and the operation risk caused by blind operation, and can reduce the learning curve for a beginner of an instrument.
Referring to the attached fig. 3 and fig. 7 of the specification, a preset included angle is formed between the electric cutting ring 22 of the electric cutting knife 2 and the electric cutting rod 21. Preferably, the preset included angle between the electric cutting ring 22 and the electric cutting bar 21 ranges from 0 to 90 °. In the preferred embodiment, the cross-sectional shape of the electric knife 2 is similar to the shape of a "hoe". During the use process, the inclined electric cutting ring 22 can better pull out the tissue to be cut, and the surgical cutting effect is improved.
Referring to the attached drawing 6 of the specification, the electric cutting rod 21 of the electric cutting knife 2 comprises a first extension rod 212, a second extension rod 213 and a base rod 214, the first extension rod 212 and the second extension rod 213 are respectively installed on the base rod 214, the first extension rod 212 and the second extension rod 213 are arranged at a preset distance from each other, and two ends of the electric cutting ring 22 are respectively installed on the first extension rod 212 and the second extension rod 213.
Furthermore, the joints of the first extension rod 212, the second extension rod 213 and the base rod 214 have a bending portion 211, and the bending portion 211 is disposed opposite to the resecting ring 22. The bending part 211 is bent upward, the cutting ring 22 extends downward, and the bending part 211 is opposite to the extension direction of the cutting ring 22, so that the center of the cutting ring 22 can be approximately coincident with the center of the cutting rod 21, thereby facilitating the operation of an operator.
Preferably, the first engaging groove 210 is formed at a predetermined position at the rear end of the base shaft 214.
Further, the distance between the first extension rod 212 and the second extension rod 213 is smaller than the diameter of the resectioning ring 22, and the first extension rod 212 and the second extension rod 213 are respectively located above the center of the resectioning ring 22.
Preferably, the cross-sectional shape of the electrical cutting ring 22 is similar to that of a 'pot' type, and the maximum diameter of the electrical cutting ring 22 is present at the midline position of the electrical cutting rod 21, so that the maximum cutting area can be realized, and the cutting efficiency can be improved.
Further, the sleeve 23 is respectively sleeved on the first extension rod 212 and the second extension rod 213. The sleeve 23 further comprises a first sleeve 231 and a second sleeve 232, the first sleeve 231 is close to the electrical cutting ring 22, and the second sleeve 232 is far from the electrical cutting ring 22; the junction of the first sleeve 231 and the second sleeve 232 transitions through an arc-shaped structure.
It can be understood that the resectoscope 22 and the lens 13 are respectively located at the upper and lower sides of the resectoscope 21, and the first extension rod 212 and the second extension rod 213 inevitably cause a shielding to the resectoscope 22 during the process of acquiring the image of the resectoscope 22 through the lens 13. In the preferred embodiment, the electric cutting knife 2 is designed in a three-stage manner, that is, a certain distance is preset between the first sleeve 231 and the electric cutting ring 22, and the first sleeve 231 and the second sleeve 232 are transited through an arc structure, so that the shielding of the electric cutting rod 21 on the electric cutting ring 22 can be reduced, and the observation effect of an operator is improved.
Preferably, the diameter of the first sleeve 231 is smaller than the diameter of the second sleeve 232. Optionally, the first sleeve 231 is tapered, and the diameter of the end near the electrical cutting ring 22 is smaller than the diameter of the end near the second sleeve 232, so as to reduce the obstruction of the electrical cutting ring 22 and improve the viewing range of the electrical cutting ring 22.
Referring to the attached fig. 1 and 2 of the specification, a holding member 24 is connected to the tail end of the electric cutting rod 21 of the electric cutting knife 2, and the holding member 24 can facilitate the operation of an operator.
Example 2
Referring to fig. 8 to 10 in the specification, a second preferred embodiment of the uterine cavity resectoscope provided by the present invention is explained, and the difference from the first preferred embodiment is that in the second preferred embodiment, the uterine cavity resectoscope further includes a second locking member 4, and the second locking member 4 can limit the radial direction of the resectoscope rod 21, so as to prevent the electric knife 2 from rotating in the working channel 10 relative to the scope body 1.
Specifically, the base shaft 214 further has a second engaging groove 2140, and the second engaging groove 2140 is located at the bottom of the first engaging groove 210 and is communicated with the first engaging groove 210.
The first lock member 3 has a slide channel 30, and the second lock member 4 is slidably mounted to the slide channel 30. The slide channel 30 penetrates the top and bottom of the first latch 3.
Referring to the description of the attached drawings 9, in the first state, the bottom end of the first locking member 3 enters the first slot 210, so that the electric cutting rod 21 can be axially limited and the electric cutting rod 21 is allowed to rotate relative to the endoscope body 1. In the first state, the electric cutting bar 21 can rotate in the working channel 10, but cannot be pulled back and forth within the working channel 10.
Referring to fig. 10 in the specification, in the second state, the bottom end of the first locking member 3 enters the first engaging groove 210, the bottom end of the second locking member 4 enters the second engaging groove 2140, the first locking member 3 axially limits the electric cutting rod 21, and the second locking member 4 radially limits the electric cutting rod 21. In the second state, the electric cutting bar 21 cannot be rotated in the working channel 10, nor can it be pulled back and forth in the working channel 10.
It should be noted that, in the uterine cavity resectoscope provided in the preferred embodiment, an operator can control the uterine cavity resectoscope to switch between the first state and the second state according to the use requirement, and perform axial limitation or both axial and radial limitation on the electrotome 2, so as to meet more use requirements.
Example 3
Referring to the accompanying fig. 11, a third preferred embodiment of the hysteroscope is illustrated, which is different from the first preferred embodiment in that the hysteroscope further includes a second locking member 4 and a rotation limiting member 5.
The base shaft 214 further has a third slot 2141, and the third slot 2141 is located on a side wall of the first slot 210 and is communicated with the first slot 210.
The first locking member 3 has a slide passage 30, a locking passage 32, and a rotation space 33, the rotation limiting member 5 has a rotating portion 51, a pushing portion 52, and a locking portion 53, and the rotating portion 51 is rotatably mounted in the rotation space 33.
The first locking piece 3 is pressed, so that the bottom end of the first locking piece 3 enters the first clamping groove 210, and the first locking piece 3 can axially limit the electric cutting rod 21 and allow the electric cutting rod 21 to rotate relative to the endoscope body 1.
The second locking member 4 is continuously pressed against the first locking member 3, in the process that the second locking member 4 descends in the sliding channel 30, the bottom end of the second locking member 4 pushes the pushing portion 52 of the rotation limiting member 5, the rotating portion 51 of the rotation limiting member 5 rotates relative to the first locking member 3, the locking portion 53 of the rotation limiting member 5 passes through the locking channel 32 and enters the third clamping groove 2141, and the electric cutting rod 21 can be radially limited.
Referring to fig. 11 of the specification, the hysteroscope resectoscope further includes an elastic member 54, the elastic member 54 is installed between the rotating portion 51 of the rotation-limiting member 5 and the inner wall of the rotating space 33, and when the second locking member 4 moves in the sliding channel 30 and pushes the locking portion 53 of the rotation-limiting member 5 out of the locking channel 32 and into the third groove 2141, the rotating portion 51 compresses the elastic member 54; when the second locking member 4 is raised in the sliding channel 30, the rotation portion 51 of the rotation limiting member 5 rotates relative to the first locking member 3 under the action of the elastic member 54, and the locking portion 53 is withdrawn from the third locking groove 2141.
Preferably, the elastic member 54 is a spring.
Example 4
In the fourth preferred embodiment of the present invention, the difference from the second preferred embodiment is that the base shaft 214 further has a third card slot 2141, and the third card slot 2141 is located on a side wall of the first card slot 210 and communicates with the first card slot 210.
The mirror body 1 further comprises a rotation limiting part 5, the first locking part 3 further comprises a locking channel 32 and a rotation space 33, the rotation limiting part 5 comprises a rotation part 51, a pushing part 52 and a locking part 53, and the rotation part 51 is rotatably installed in the rotation space 33.
In the process that the second locking member 4 slides in the sliding channel 30 of the first locking member 3, and the second locking member 4 moves into the second locking groove 2140, the bottom end of the second locking member 4 first contacts with the pushing portion 52 of the rotation limiting member 5 and pushes the pushing portion 52 of the rotation limiting member 5, the rotating portion 51 of the rotation limiting member 5 rotates relative to the first locking member 3, the locking portion 53 of the rotation limiting member 5 penetrates out of the locking channel and enters the third locking groove 2141, the second locking member 4 continues to move in the sliding channel 30, and the bottom end of the second locking member 4 moves into the second locking groove 2140.
In the fourth preferred embodiment, the second preferred embodiment and the third preferred embodiment are combined, so that the electric cutting knife 2 can be limited in the radial direction, and the stability of the electric cutting knife 2 is further improved.
It should be noted that the above embodiments can be freely combined as necessary. The foregoing is only a preferred embodiment of the present invention, and it should be noted that it is obvious to those skilled in the art that various modifications and improvements can be made without departing from the principle of the present invention, and these modifications and improvements should also be considered as the protection scope of the present invention.
Claims (10)
1. Palace chamber resectoscope, its characterized in that includes:
an electric knife;
the endoscope body is provided with a working channel for being arranged on the electric cutter; a lens and an illuminating piece are installed at the head end of the lens body, and the lens inclines towards the direction of the working channel by a preset angle;
wherein, the electric knife includes:
electrically cutting a ring;
the electric cutting ring is connected to the electric cutting rod; a preset included angle is formed between the electric cutting ring and the electric cutting rod, and the range of the preset included angle is an acute angle;
the electric cutting rod comprises a first extension rod, a second extension rod and a base rod, the first extension rod and the second extension rod are respectively connected to the base rod, two ends of the electric cutting ring are respectively installed at the end parts, far away from the base rod, of the first extension rod and the second extension rod, a first clamping groove is formed in a preset position of the tail end of the base rod, and a first locking piece is arranged in a preset position of the mirror body;
when the electric cutter is arranged in the working channel, the first clamping groove corresponds to the first locking piece, and the first locking piece can be matched with the electric cutting rod of the electric cutter to limit the electric cutting rod along the length extension direction of the electric cutting rod and allow the electric cutting rod to rotate relative to the mirror body.
2. The hysteroscope resectoscope according to claim 1, wherein the base rod further comprises a second slot, the second slot is located at the bottom of the first slot and is communicated with the first slot;
the mirror body further comprises a second locking piece, wherein the first locking piece is provided with a sliding channel, and the second locking piece is slidably arranged on the sliding channel;
in a first state, the bottom end of the first locking piece enters the first clamping groove, so that the electric cutting rod can be axially limited and is allowed to rotate relative to the endoscope body;
in a second state, the bottom end of the first locking piece enters the first clamping groove, the bottom end of the second locking piece enters the second clamping groove, the first locking piece is used for axially limiting the electric cutting rod, and the second locking piece is used for radially limiting the electric cutting rod.
3. The hysteroscope assembly of claim 1, wherein the base shaft further comprises a third slot, the third slot is located on the side wall of the first slot and is communicated with the first slot;
the endoscope body further comprises a second locking piece and a rotation limiting piece, the first locking piece is provided with a sliding channel, a locking channel and a rotation space, the rotation limiting piece is provided with a rotation part, a pushing part and a locking part, and the rotation part is rotatably arranged in the rotation space;
the first locking piece is pressed, so that the bottom end of the first locking piece enters the first clamping groove, the first locking piece can axially limit the electric cutting rod, and the electric cutting rod is allowed to rotate relative to the endoscope body;
and continuously pressing the second locking piece relative to the first locking piece, wherein in the process that the second locking piece descends in the sliding channel, the bottom end of the second locking piece pushes the pushing part of the rotation limiting piece, the rotating part of the rotation limiting piece rotates relative to the first locking piece, and the locking part of the rotation limiting piece penetrates out of the locking channel and enters the third clamping groove to radially limit the electric cutting rod.
4. The hysteroscope assembly of claim 2, wherein the base shaft further comprises a third slot, the third slot is located on the side wall of the first slot and is communicated with the first slot;
the mirror body further comprises a rotation limiting part, the first locking part is further provided with a locking channel and a rotation space, the rotation limiting part is provided with a rotation part, a pushing part and a locking part, and the rotation part is rotatably arranged in the rotation space;
when the second locking piece slides in the sliding channel of the first locking piece and moves into the second clamping groove, the bottom end of the second locking piece is firstly contacted with the pushing part of the rotation limiting piece and pushes the pushing part of the rotation limiting piece, the rotating part of the rotation limiting piece rotates relative to the first locking piece, the locking part of the rotation limiting piece penetrates out of the locking channel and enters the third clamping groove, the second locking piece continues to move in the sliding channel, and the bottom end of the second locking piece moves into the second clamping groove.
5. The uterine cavity resectoscope according to any one of claims 1-4, wherein the resectoscope further comprises a sleeve, the sleeve is sleeved on the resectoscope rod, and a preset distance is provided between the head end of the sleeve and the resectoscope ring, so as to avoid the sleeve from obstructing the view of the resectoscope ring.
6. The hysteroscopy scope of claim 5, wherein the sleeve comprises a first sleeve proximal to the resecting ring and a second sleeve distal to the resecting ring; the joint of the first sleeve and the second sleeve is in transition through an arc-shaped structure.
7. The hysteroscopy resectoscope according to claim 5, wherein the connection between the first extension rod, the second extension rod and the base rod has a bending part, the bending part and the resecting ring are respectively located on the same side of the first extension rod and the second extension rod, and the center of the resecting ring coincides with the center of the base rod.
8. The uterine cavity resectoscope according to claim 7, wherein the first clamping groove is a ring-shaped clamping groove formed at a predetermined position of the resectoscope rod.
9. The hysteroscopy scope of claim 5, wherein the distance between the first and second extension rods is less than the diameter of the resecting ring, and the first and second extension rods are each located above the center of the resecting ring.
10. The hysteroscopy of claim 5, wherein the angle of inclination of the lens toward the working channel is 15 ° to 30 °.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110323865.1A CN112704561B (en) | 2021-03-26 | 2021-03-26 | Uterine cavity resectoscope |
| PCT/CN2021/115858 WO2022198924A1 (en) | 2021-03-26 | 2021-09-01 | Hysteroscopic resectoscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110323865.1A CN112704561B (en) | 2021-03-26 | 2021-03-26 | Uterine cavity resectoscope |
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| Publication Number | Publication Date |
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| CN112704561A true CN112704561A (en) | 2021-04-27 |
| CN112704561B CN112704561B (en) | 2021-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110323865.1A Active CN112704561B (en) | 2021-03-26 | 2021-03-26 | Uterine cavity resectoscope |
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| Country | Link |
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| CN (1) | CN112704561B (en) |
| WO (1) | WO2022198924A1 (en) |
Cited By (3)
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| CN112971868A (en) * | 2021-05-10 | 2021-06-18 | 上海宇度医学科技股份有限公司 | Visual uterine curettage instrument and use method thereof |
| CN113243885A (en) * | 2021-06-16 | 2021-08-13 | 上海宇度医学科技股份有限公司 | Electronic hysteroscope with adjustable lens angle |
| WO2022198924A1 (en) * | 2021-03-26 | 2022-09-29 | 上海宇度医学科技股份有限公司 | Hysteroscopic resectoscope |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2022198924A1 (en) | 2022-09-29 |
| CN112704561B (en) | 2021-06-25 |
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