Uterine curette for laparoscope

Abstract

The invention relates to the field of medical instruments, and particularly discloses a uterine curette for a laparoscope, comprising: a curette body comprising a connecting rod and a curette head fixedly arranged at the end of the connecting rod; the handle is arranged at the end, away from the curette head, of the connecting rod; the connecting piece is connected with the spoon body and the handle; the camera is arranged on the side wall, close to the spoon head, of the connecting rod; wherein the connecting rod is provided with a first communicating cavity, and a suction opening is formed in the joint of the connecting rod and the spoon head; the handle is provided with a second communicating cavity; the connecting piece is provided with a third communicating cavity for connecting the first communicating cavity and the second communicating cavity; a first injection port and a second injection port are formed in the inner wall of the second communicating cavity; the first injection port is connected with an external negative pressure machine, and the second injection port is connected with an external pump body so as to inject liquid into the second communicating cavity; the camera is electrically connected with an external display to display an internal image; the uterine curette for the laparoscope has the beneficial effect that the uterine curette for the laparoscope can suck and wash the inner wall of the uterus in an endoscopic operation.

Description

Technical Field

[0001] The present application relates to the field of medical devices, and in particular to a laparoscopic uterine curette. Background Art

[0002] Endometrial lesions in women are a common type of gynecological disease, involving functional uterine bleeding, endometrial polyps, endometrial cancer, etc. These diseases all require diagnostic curettage for diagnosis and treatment. The curettage currently used is a blind operation, and the operator judges the extent of the curettage by the feeling of the hand. The usual method is: when the curettage begins, the scraping of the uterine cavity feels smooth, and when the endometrium is about to be scraped clean, the scraping of the uterine cavity feels rough. Some doctors describe it as "the feeling of scraping bitter melon skin", which reminds the doctor that the operation should be over. Continuing to scrape can cause permanent damage to the basal layer of the endometrium. However, due to the different conditions of patients and individual differences, the experience and feelings of each doctor are also inconsistent, so the incidence of endometrial damage is a very high complication; In order to solve the above problems, a visual curettage spoon has appeared on the market, which can be understood as being able to transmit the image of the inside of the uterus to an external display during curettage. However, in the actual operation process, it was found that the doctor did not remove the internal residues during curettage, resulting in blurred vision and increasing the difficulty of the doctor's operation. Therefore, it is necessary to design a laparoscopic curettage spoon that can clean the uterus during the curettage process. Summary of the invention

[0003] In order to improve the problem of energy consumption, the present application provides a laparoscopic uterine curette.

[0004] The present application provides a laparoscopic uterine curette using the following technical solution: including: The key body comprises a connecting rod and a key head fixedly arranged at the end of the connecting rod; A handle, arranged at the end of the connecting rod away from the key head; A connecting piece, connecting the key body and the handle; A camera is arranged on a side wall of the connecting rod close to the key head; Among them, the connecting rod has a first connecting cavity, and a suction port is formed at the connection between the connecting rod and the key head; the handle has a second connecting cavity; the connecting piece has a third connecting cavity to connect the first connecting cavity and the second connecting cavity; the inner wall of the second connecting cavity is provided with a first injection port and a second injection port; the first injection port is connected to an external negative pressure machine, and the second injection port is connected to an external pump body to inject liquid into the second connecting cavity; the camera is electrically connected to an external display to display the internal image.

[0005] By adopting the above technical solution, when scraping the inner wall of the uterus, the negative pressure generated by the first injection port can absorb the scraped residues of the inner wall of the uterus; the inner wall of the uterus can be flushed through the second injection port; the flushing and suction are integrated in this way, which makes it easier for doctors to adapt to more different situations and improves the convenience during the operation.

[0006] Optionally, the first injection port and the second injection port are distributed up and down along the axial direction of the handle; A blocking ring is arranged on the inner wall of the second connecting cavity, and the surface of the blocking ring at least completely covers the first injection port / the second injection port; The blocking ring is slidably arranged along the axial direction of the handle to correspond alternately between the first injection port and the second injection port.

[0007] Optionally, two limiting rings are formed on the inner wall of the second communicating cavity and on the inner walls on both sides of the first injection port / the second injection port; The blocking ring slides between the two limit rings; An elastic member is arranged between the blocking ring and the limiting ring, and the elastic member always gives the blocking ring an elastic force corresponding to the second injection port.

[0008] Optionally, the connecting piece is in the form of a sphere and is rotatably disposed at the end of the handle.

[0009] Optionally, the handle is rotated to set a first rotating block, and the first rotating block contacts the surface of the connecting member to drive the connecting member to rotate along the circumferential direction of the handle; The handle is rotated to set a second rotating block, and the second rotating block contacts the surface of the connecting member to drive the connecting member to rotate along the axial direction of the handle; Wherein, an adjustment ring which contacts the first rotating block / the second rotating block is arranged on the surface of the handle; the adjustment ring moves along the axial direction of the handle and rotates along the circumferential direction of the handle.

[0010] Optionally, a first gear ring corresponding to the first rotating block is arranged on the surface of the connecting member along the warp direction; and a second gear ring corresponding to the second rotating block is arranged along the weft direction; Gears corresponding to the first gear ring / the second gear ring are formed on the surface of the first rotating block / the second rotating block.

[0011] Optionally, the inner wall of the adjustment ring forms a rack corresponding to the first rotating block and a gear ring corresponding to the second rotating block.

[0012] Optionally, a sliding groove is formed on the surface of the handle to guide the adjustment ring to slide along the axial direction of the handle; The sliding arrangement in the slide groove and connected with the adjusting ring is a slider; An annular groove connected with the sliding block is formed on the inner wall of the adjusting ring along the circumferential direction.

[0013] Optionally, a cone is formed at the end of the second connecting cavity close to the connecting piece.

[0014] Optionally, a deformable inner sleeve is fixedly arranged on the inner wall of the cone mouth, and a resistance rod which resists against the surface of the deformable inner sleeve is arranged on the side wall of the handle.

[0015] In summary, the present application includes at least one of the following beneficial technical effects: 1. Negative pressure can be generated by setting the first injection port, so residues can be cleaned in time when scraping the inner wall of the uterus; 2. Injecting physiological saline through the second injection port can be used for flushing during the operation, thereby improving cleaning; 3. The flushing function has the effect of clearing blockages; 4. The position of the key head can be conveniently adjusted by the setting of the connecting piece, which is convenient for the doctor to perform more detailed operations during the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application; Figure 2 is an exploded schematic diagram of the present application; Figure 3 It is a half-section structural diagram of the present application; Figure 4 is an installation structure diagram of the first rotating block of the present application; Figure 5 is a diagram of the installation structure of the second rotating block of the present application; Figure 6 It is a structural diagram of the spoon body of the present application; Figure 7 is a structural diagram of the second gear ring of the present application; Figure 8 is a structural diagram of the first gear ring of the present application; Fig. 9 It is a structural diagram of the adjustment ring of the present application.

[0017] Figure markings: 1-spoon body; 2-handle; 3-connecting piece; 5-connecting rod; 6-spoon head; 7-first connecting chamber; 8-suction port; 9-second connecting chamber; 10-first injection port; 11-second injection port; 12-blocking ring; 13-through hole; 14-limiting ring; 15-elastic piece; 16-guide groove; 17-sliding piece; 18-third connecting chamber; 19-conical mouth; 20-first rotating block; 21-second rotating block; 22-first gear ring; 23-second gear ring; 24-gear ring; 25-adjusting ring; 27-deformation inner sleeve; 28-resistance rod; 30-sliding groove; 31-sliding block; 32-ring groove. DETAILED DESCRIPTION

[0018] Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as being limited to the embodiments set forth herein. On the contrary, these embodiments are provided to provide a more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are only for exemplary purposes and are not intended to limit the scope of protection of the present disclosure.

[0019] It should also be noted that, for ease of description, only the parts related to the invention are shown in the drawings. In the absence of conflict, the embodiments and features in the embodiments of the present disclosure can be combined with each other.

[0020] It should be noted that the concepts such as "first" and "second" mentioned in the present disclosure are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0021] It should be noted that the modifications of "one" and "plurality" mentioned in the present disclosure are illustrative rather than restrictive, and those skilled in the art should understand that unless otherwise clearly indicated in the context, it should be understood as "one or more".

[0022] The present disclosure will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0023] refer to Figures 1 to 9 , the embodiment of the present application discloses a laparoscopic uterine curette, comprising: a spoon body 1, a handle 2, a connecting piece 3, and a camera; Specifically, the spoon body 1 includes a connecting rod 5 and a key head 6; wherein the key head 6 is fixedly arranged at the end of the connecting rod 5 extending into the interior of the uterus, and the fixing method may be welding, integral molding or threaded connection, etc.; the connecting rod 5 and the key head 6 are made of 304 stainless steel, which has high corrosion resistance and antibacterial ability; the key head 6 is constructed in a triangular shape to facilitate contact with the inner wall of the uterus to increase the scraping range; the end of the connecting rod 5 away from the key head 6 is connected to the handle 2 through a connector 3 to form a laparoscopic uterine scraper; a camera is arranged at a position of the connecting rod 5 near the key head 6, and a transmission channel for transmitting electrical signals of an image integration mechanism is arranged on the surface of the connecting rod 5, and the transmission channel is electrically connected to an external display to image the internal situation of the uterus; the arrangement of the above-mentioned scheme can make the surgical situation more intuitive during operation, and this technology is often used in laparoscopic surgery, which is an existing technology and improves the accuracy and stability of the surgery.

[0024] In a more specific embodiment, the connecting rod 5 has a first connecting cavity 7, and a suction port 8 is formed at the connection between the connecting rod 5 and the key head 6; the handle 2 has a second connecting cavity 9, and a first injection port 10 and a second injection port 11 are arranged in the second connecting cavity 9; wherein, the first injection port 10 is connected to an external negative pressure machine, and the first connecting cavity 7 is sucked under the action of the negative pressure machine, and when the inner wall of the uterus is scraped, the residue on the inner wall of the uterus is sucked into the first connecting cavity 7 from the suction port 8 under the action of the negative pressure; the second injection port 11 is connected to an external water pump, so that physiological saline is injected into the second connecting cavity 9 under the action of the water pump, so that when the uterus is scraped, if there is a need for cleaning, it can be flushed with physiological saline; if there is a blockage, it can also be cleared by flushing.

[0025] In a more specific embodiment, in the axial direction of the handle 2, the first injection port 10 and the second injection port 11 are distributed up and down; a blocking ring 12 is slidably provided on the inner wall of the second connecting cavity 9, and in the initial state, the blocking ring 12 can completely cover the first injection port 10 and the second injection port 11; wherein, a through hole 13 corresponding to the first injection port 10 / the second injection port 11 is formed through the surface of the blocking ring 12 radially; when the blocking ring 12 slides upward or downward, the through hole 13 can correspond to the first injection port 10 / the second injection port 11, thereby realizing suction or injection of physiological saline; more specifically, the inner wall of the second connecting cavity 9 and located on both sides of the first injection port 10 / the second injection port 11 along the axial direction of the handle 2 The walls are respectively formed with two limiting rings 14; the blocking ring 12 is located between the two limiting rings 14 and moves; wherein, an elastic member 15 is arranged between the blocking ring 12 and the limiting ring 14, and the elastic member 15 is a spring and always gives an elastic force to the blocking ring 12 so that the through hole 13 is always located between the first injection port 10 and the second injection port 11; more specifically, the surface of the handle 2 penetrates through the second connecting cavity 9 to form a guide groove 16 for guiding the axial movement of the blocking ring 12; a slide 17 is slidably arranged on the surface of the handle 2, and a part of the slide 17 penetrates through the guide groove 16 and is fixedly connected with the blocking ring 12; with such an arrangement, as long as the slide 17 is moved along the axial direction of the handle 2, the residues on the inner wall of the uterus can be sucked and cleaned, which is convenient for changing the operation mode.

[0026] In another more specific embodiment, the connecting member 3 is constructed in the form of a sphere and is rotatably arranged at the end of the handle 2; specifically, the end of the connecting rod 5 away from the spoon body 1 is fixedly connected to the connecting member 3; the connection method can be any connection method such as threaded connection or clamping that is convenient for disassembly and assembly of the connecting rod 5, so that it is convenient for disassembly and assembly, and convenient for later repair, disinfection and maintenance; wherein, the connecting member 3 has a third connecting cavity 18 to connect the first connecting cavity 7 and the second connecting cavity 9; a conical opening 19 is formed at the end of the second connecting cavity 9 close to the connecting member 3, and the diameter of the conical opening 19 close to the end of the third connecting cavity 18 is larger than the diameter of the second connecting cavity 9; in this way, when the connecting member 3 is rotated, the third connecting cavity 18 can always be connected with the conical opening 19, thereby improving the sealing performance; In another more specific embodiment, the handle 2 is rotatably provided with a first rotating block 20 and a second rotating block 21 which are in contact with the surface of the connecting member 3; wherein the first rotating block 20 is in contact with the surface of the connecting member 3; by rotating the first rotating block 20, the connecting member 3 can be rotated under the action of friction; the rotation direction of the first rotating block 20 is to rotate along the circumferential direction of the handle 2, thereby driving the connecting member 3 to rotate along the circumferential direction of the handle 2, and adjusting the rotation of the spoon body 1; the second rotating block 21 rotates along the axial direction of the handle 2, and rotating the second rotating block 21 can cause the connecting member 3 to rotate along the axial direction of the handle 2, thereby adjusting the position of the spoon body 1; through the design of the above scheme, the position of the spoon body 1 can be easily adjusted, thereby facilitating the doctor to make fine adjustments in the uterus.

[0027] In another more preferred embodiment, a first gear ring 22 is provided on the surface of the connecting member 3 along the meridian direction, and a second gear ring 23 is provided along the latitude direction; gear rings 24 are provided on both the first rotating block 20 and the second rotating block 21 to mesh with the first gear ring 22 and the second gear ring 23 respectively; wherein an adjustment ring 25 is slidably provided on the surface of the handle 2, and the inner wall of the adjustment ring 25 forms gear rings 24 corresponding to the two gears respectively; specifically, a slide groove 30 is formed on the surface of the handle 2 to guide the adjustment ring 25 to slide along the axial direction of the handle 2, a slider 31 connected to the adjustment ring 25 is slidably provided in the slide groove 30, and an annular groove 32 connected to the slider 31 is formed on the inner wall of the adjustment ring 25 along the circumferential direction; with such a configuration, sliding the adjustment ring 25 along the axial direction of the handle 2 can rotate the second rotating block 21; rotating the handle 2 along the circumferential direction can rotate the first rotating block 20; this is convenient for doctors to operate.

[0028] In another preferred embodiment, a deformable inner sleeve 27 is also fixedly provided on the inner wall of the cone mouth 19, and the deformable inner sleeve 27 is made of materials such as rubber and silicone that can be deformed under the action of external force and can basically recover to the pre-deformation state after the external force disappears; the fixing method can be, for example, gluing, clamping and locking through the handle 2 and a pressing piece with additional threads thereon; wherein, a resistance rod 28 is provided on the side wall of the handle 2, and the handle 2 is radially inserted into the second connecting cavity 9 to resist the surface of the deformable inner sleeve 27; a spring is provided between the resistance rod 28 and the handle 2, and the spring always keeps the resistance rod 28 away from the elastic force of the deformable inner sleeve 27; when in use, the resistance rod 28 can cause the deformable inner sleeve 27 to deform, thereby changing the inner diameter of the flow; in this way, the flow rate / flow rate of suction or flushing can be changed.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A laparoscopic uterine curette, characterized in that: include: The key body comprises a connecting rod and a key head fixedly arranged at the end of the connecting rod; A handle, arranged at the end of the connecting rod away from the key head; A connecting piece, connecting the spoon body and the handle; A camera is arranged on a side wall of the connecting rod close to the key head; The connecting rod has a first connecting cavity, and a suction port is formed at the connection between the connecting rod and the key head; the handle has a second connecting cavity; the connecting piece has a third connecting cavity to connect the first connecting cavity and the second connecting cavity; the inner wall of the second connecting cavity is provided with a first injection port and a second injection port; the first injection port is connected to an external negative pressure machine, and the second injection port is connected to an external pump body to inject liquid into the second connecting cavity; The camera is electrically connected to an external display to display internal images.

2. The laparoscopic curette according to claim 1, characterized in that: The first injection port and the second injection port are distributed up and down along the axial direction of the handle; A blocking ring is disposed on the inner wall of the second communicating cavity, and the surface of the blocking ring at least completely covers the first injection port / the second injection port; Wherein, the blocking ring is slidably arranged along the axial direction of the handle to correspond alternately between the first injection port and the second injection port.

3. The laparoscopic curette according to claim 2, characterized in that: Two limiting rings are formed on the inner wall of the second communicating cavity and on the inner walls on both sides of the first injection port / the second injection port; The blocking ring is located and slides between the two limiting rings; An elastic member is arranged between the blocking ring and the limiting ring, and the elastic member always gives the blocking ring an elastic force corresponding to the second injection port.

4. The laparoscopic curette according to claim 1, characterized in that: The connecting piece is in the form of a sphere and is rotatably arranged at the end of the handle.

5. The laparoscopic curette according to claim 4, characterized in that: The handle is rotatably provided with a first rotating block, the first rotating block contacts with the surface of the connecting member to drive the connecting member to rotate along the circumferential direction of the handle; The handle is rotatably provided with a second rotating block, and the second rotating block contacts the surface of the connecting member to drive the connecting member to rotate along the axial direction of the handle; Wherein, the handle surface is provided with an adjustment ring which contacts the first rotating block / the second rotating block; the adjustment ring moves along the axial direction of the handle and rotates along the circumferential direction of the handle.

6. The laparoscopic curette according to claim 5, characterized in that: A first gear ring corresponding to the first rotating block is arranged on the surface of the connecting member along the warp direction; and a second gear ring corresponding to the second rotating block is arranged along the weft direction; Gears corresponding to the first gear ring / the second gear ring are formed on surfaces of the first rotating block / the second rotating block.

7. The laparoscopic curette according to claim 6, characterized in that: A rack corresponding to the first rotating block and a gear ring corresponding to the second rotating block are formed on the inner wall of the adjusting ring.

8. The laparoscopic curette according to claim 6, characterized in that: The handle surface forms a slide groove for guiding the adjusting ring to slide along the axial direction of the handle; The sliding arrangement in the slide groove and connected to the adjusting ring is a slider; An annular groove connected to the sliding block is formed on the inner wall of the adjusting ring along the circumferential direction.

9. The laparoscopic curette according to claim 1, characterized in that: The second communicating cavity is formed with a tapered opening at an end portion close to the connecting piece.

10. The laparoscopic uterine curette according to claim 9, characterized in that: The inner wall of the cone mouth is fixedly provided with a deformable inner sleeve, and the side wall of the handle is provided with a resisting rod which resists against the surface of the deformable inner sleeve.

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