Intraoperative cleaning device for gun-like instruments

By combining the design of the drive motor and the elastic element, the brushing force control of the gun-shaped instrument cleaning device is realized, which solves the problem of wear and tear on instruments made of fragile materials in the existing technology and improves cleaning efficiency and practicality.

CN119608647BActive Publication Date: 2026-07-03CHINESE PEOPLES LIBERATION ARMY ARMY SPECIAL MEDICAL CENTER

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINESE PEOPLES LIBERATION ARMY ARMY SPECIAL MEDICAL CENTER
Filing Date
2024-11-25
Publication Date
2026-07-03

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Abstract

This invention provides a gun-shaped intraoperative instrument cleaning device, comprising a housing, a cover on the housing, a cleaning port on the cover, a drive motor fixedly mounted inside the housing, a mounting base mounted on the output shaft of the drive motor, a mounting plate slidably mounted on one end of the mounting base, an elastic element between the mounting base and the mounting plate, a cleaning cylinder rotatably mounted on the mounting plate, the cleaning cylinder being eccentrically arranged with the cleaning port, the middle section of the cleaning cylinder having an inverted conical surface, an annular brush disposed inside the cleaning cylinder, a spray gun facing the inverted conical surface mounted on the cover, and a drive mechanism connected to the cleaning cylinder disposed inside the housing. This device, under the action of the elastic element, allows the annular brush to exert different pressures on the instruments, thereby autonomously controlling the brushing force and effectively preventing damage to the ends of instruments made of fragile materials due to uncontrollable brushing force during cleaning, thus improving the practical value of the cleaning device.
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Description

Technical Field

[0001] This invention specifically relates to a gun-shaped instrument intraoperative cleaning device. Background Technology

[0002] Gun-shaped medical instruments are specially designed tools primarily for convenient hand-held operation by medical personnel, enabling efficient execution of specific medical procedures. These include gun-type continuous syringes, gun-shaped forceps, and microwave ablation needles. The design of gun-shaped medical instruments fully considers the practical needs of medical procedures, improving efficiency and accuracy. During surgery, some gun-shaped instruments require frequent cleaning of their operating ends to ensure the smooth progress of the procedure. Traditional methods mostly involve manual cleaning, which is time-consuming and cannot meet the time constraints of surgery. Therefore, specialized cleaning equipment is used to clean gun-shaped instruments.

[0003] For example, Chinese patent CN219895945U provides a neurosurgical gun-shaped instrument cleaning device. When in use, the device can use a clamping seat and a ferrule seat to fix the instrument, which can prevent the instrument from moving and affecting the cleaning of the surgical end. The upper and lower spray heads can thoroughly clean the surgical end of the instrument. The hot air blown from the hot air blown at an angle towards the surgical end of the gun-shaped instrument, so that the moisture on the surgical end can be completely dried and the surgical end can be kept dry.

[0004] However, existing gun-shaped instrument cleaning devices are not convenient for adjusting the scrubbing intensity according to different instrument materials, which leads to wear or damage to some vulnerable parts during the cleaning process, reducing the practical value of traditional cleaning devices. In view of this, a gun-shaped instrument intraoperative cleaning device is proposed to solve the above-mentioned technical problems. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention proposes an intraoperative cleaning device for gun-shaped instruments. This addresses the technical problem mentioned in the background section: existing gun-shaped instrument cleaning devices are inconvenient to adjust the brushing force according to different instrument materials, which leads to wear or damage to the ends of instruments made of fragile materials during the cleaning process, thus reducing the practical value of traditional cleaning devices.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a gun-shaped instrument intraoperative cleaning device, comprising:

[0007] A housing, wherein a cover is provided on the housing, and a cleaning port is provided on the cover;

[0008] A drive motor is fixedly installed inside the housing. A mounting base is provided on the output shaft of the drive motor. A mounting plate is slidably installed on one end of the mounting base. An elastic element is provided between the mounting base and the mounting plate.

[0009] A cleaning cylinder is rotatably mounted on the mounting plate and eccentrically arranged with respect to the cleaning port. The middle section of the cleaning cylinder has an inverted conical surface. An annular brush is installed inside the cleaning cylinder, and a spray gun facing the inverted conical surface is installed on the cover.

[0010] A drive mechanism, disposed within the housing and connected to the cleaning cylinder, converts the rotation of the drive motor output shaft into driving the cleaning cylinder to rotate when the mounting plate slides any distance.

[0011] Preferably, the bottom of the cover is provided with multiple sets of nozzles, the cover is provided with a water inlet, the water inlet is connected to the spray gun and the multiple sets of nozzles, and the water inlet is connected to an external water supply system.

[0012] Preferably, a control switch is provided on one side of the mounting plate, the control switch is electrically connected to the drive motor and the water supply system, and one end of the elastic member abuts against the control switch.

[0013] Preferably, a drain outlet is provided at the bottom of the housing, and a removable filter screen is provided at the bottom of the housing above the drain outlet.

[0014] Preferably, the drive mechanism includes:

[0015] A drive gear is located at the bottom of the cleaning cylinder;

[0016] A gear ring, movably slidable within the housing via a mounting assembly, wherein the drive gear meshes with the gear ring; and

[0017] A connecting component is disposed at the bottom of the mounting plate and connected to the toothed ring to drive the toothed ring to translate along with the mounting plate.

[0018] Preferably, the mounting components include:

[0019] Mounting posts, comprising at least two sets, with their axes perpendicular to each other, are arranged around the circumference of the toothed ring. Guide blocks are slidably mounted on each mounting post along its axis.

[0020] The slide rails are provided with the same number of sets as the guide blocks, and the extension directions of two adjacent sets of slide rails are perpendicular, and are fixedly installed in the housing. The multiple sets of guide blocks are slidably installed in the multiple sets of slide rails respectively.

[0021] Preferably, the connection component includes:

[0022] A connecting ring is disposed on the toothed ring and arranged concentrically thereto; and

[0023] An arc-shaped frame is located at the bottom of the mounting plate and is slidably engaged with the connecting ring.

[0024] Preferably, a brush column is also fixedly installed on the cleaning cylinder.

[0025] Preferably, a mounting bracket is hinged to the brush column, and a scraper is provided at the bottom of the mounting bracket. The scraper contacts the inner side of the annular brush, and scraping teeth are provided on the scraper. The scraper is connected to the mounting base through a limiting component, and the scraper is driven by the limiting component to always move on the side away from the cleaning port.

[0026] Preferably, the limiting component includes:

[0027] An extension rod is mounted on the mounting base, and a guide seat is provided on the mounting plate, the guide seat being slidably mounted on the extension rod;

[0028] A connecting frame, one end of which is fixedly connected to the extension rod, and the other end of which is provided with an arc-shaped slider; a ring track is provided at the bottom of the cover, and the arc-shaped slider is slidably engaged within the ring track; and

[0029] A limiting protrusion is provided on the mounting bracket and is slidably engaged at the bottom of the arc-shaped slider.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] This device can be used for temporary cleaning during surgery. In use, the end of the gun-shaped instrument to be cleaned is inserted into the cleaning port and contacts the annular brush on the inverted conical surface of the cleaning cylinder. Cleaning fluid is sprayed from the spray gun to clean the end of the gun-shaped instrument. The end of the gun-shaped instrument, in conjunction with the inverted conical surface of the cleaning cylinder, pushes the cleaning cylinder closer to the center of the cleaning port, causing the mounting plate to slide at one end of the mounting base to compress the elastic element. A drive motor rotates the mounting base, causing the cleaning cylinder to revolve within the housing along the output shaft of the drive motor. A drive mechanism converts the rotation of the drive motor's output shaft into a driving motion. The rotating cleaning cylinder causes the annular brush inside to move and sequentially contact each surface of the gun-shaped instrument for thorough cleaning. Even when the mounting plate slides, the cleaning cylinder continues to rotate. Users can push the inverted conical surface of the cleaning cylinder downwards to move it a different distance depending on the material of the instrument. The elastic element causes the annular brush to apply varying pressure to the instrument, allowing for independent control of the brushing force. This effectively prevents wear and damage to the ends of instruments made of fragile materials due to uncontrollable brushing force during cleaning, thus enhancing the practical value of the cleaning device. Attached Figure Description

[0032] To more clearly illustrate the specific embodiments of the present invention, the accompanying drawings used in the specific embodiments will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to scale.

[0033] Figure 1 A cross-sectional view of a gun-shaped instrument intraoperative cleaning device provided by the present invention;

[0034] Figure 2 This is a schematic diagram of the cleaning cylinder in an intraoperative cleaning device for a gun-shaped instrument according to the present invention;

[0035] Figure 3 This is a schematic diagram of the bottom structure of the cleaning cylinder in the intraoperative cleaning device for a gun-shaped instrument according to the present invention;

[0036] Figure 4 This is a schematic diagram of the cover of a gun-shaped instrument intraoperative cleaning device according to the present invention;

[0037] Figure 5 This is a schematic diagram of the drive ring in the intraoperative cleaning device for a gun-shaped instrument according to the present invention;

[0038] Figure 6 This is a schematic diagram of the connection structure between the drive motor and the mounting plate in a gun-shaped instrument intraoperative cleaning device of the present invention;

[0039] Figure 7 This is a schematic diagram of the scraper structure in the intraoperative cleaning device for a gun-shaped instrument according to the present invention.

[0040] Figure label:

[0041] 101. Housing; 102. Cover; 103. Cleaning port; 104. Water inlet; 105. Spray gun; 106. Nozzle; 107. Drain; 108. Filter screen; 109. Circular track;

[0042] 201. Slide rail; 202. Guide block; 203. Gear ring; 204. Connecting ring; 205. Mounting post;

[0043] 301. Drive motor; 302. Mounting base; 303. Extension rod; 304. Mounting plate; 305. Guide seat; 306. Control switch; 307. Elastic element; 308. Arc frame;

[0044] 401. Cleaning cylinder; 402. Circular brush; 403. Brush column; 404. Drive gear;

[0045] 501. Mounting bracket; 502. Limiting protrusion; 503. Arc-shaped slider; 504. Connecting bracket; 505. Scraper. Detailed Implementation

[0046] The present invention will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present invention and should not be construed as limiting the scope of protection of the present invention. Those skilled in the art can make some non-essential improvements and adjustments to the present invention based on the above application content.

[0047] Example:

[0048] like Figure 1 , 2 As shown in Figures 4 and 6, the present invention provides a gun-shaped instrument intraoperative cleaning device, including a housing 101, a cover 102 on the housing 101, a cleaning port 103 on the cover 102, a drain port 107 at the bottom of the housing 101, and a removable filter screen 108 above the drain port 107 at the bottom of the housing 101. A drive motor 301 is fixedly installed inside the housing 101. A mounting base 302 is installed on the output shaft of the drive motor 301. A mounting plate 304 is slidably installed at one end of the mounting base 302. An elastic element 307 is provided between the mounting base 302 and the mounting plate 304. A cleaning cylinder 401 is rotatably installed on the mounting plate 304. The cleaning cylinder 401 is eccentrically arranged with respect to the cleaning port 103. The middle section of the cleaning cylinder 401 has an inverted conical surface. An annular brush 402 is installed inside the cleaning cylinder 401. A spray gun 105 facing the inverted conical surface is installed on the cover 102. The bottom of the cover 102 is provided with multiple sets of nozzles 106, and the cover 102 is provided with a water inlet 104. The water inlet 104 is connected to the spray gun 105 and the multiple sets of nozzles 106, and the water inlet 104 is connected to an external water supply system.

[0049] When in use, the end of the gun-shaped instrument is inserted into the cleaning port 103 and comes into contact with the annular brush 402 inside the cleaning cylinder 401. The instrument is then pushed downwards, causing the cleaning cylinder 401 to move towards the center of the cleaning port 103 under the action of the inverted conical surface, thereby compressing the elastic element 307. The drive motor 301 drives the mounting base 302 to rotate. During the rotation, the mounting base 302 can drive the cleaning cylinder 401 to move circumferentially through the mounting plate 304, so that the end of the instrument can come into contact with the annular brush 402 for thorough cleaning. During the cleaning process, water is supplied to the spray gun 105 and the nozzle 106 through an external water supply system. The spray gun 105 sprays water onto the inverted conical surface of the cleaning cylinder 401 to rinse the instruments, and the nozzle 106 sprays water onto the inside of the cleaning cylinder 401 to clean the cleaning cylinder 401. During the cleaning process, wastewater can be discharged through the drain outlet 107. The filter screen 108 is used to collect impurities or medical parts to prevent impurities from clogging the drain outlet 107 and to prevent parts on the instruments from falling into the drain outlet 107.

[0050] like Figure 3 , 5As shown in Figure 6, in this embodiment, a drive mechanism connected to the cleaning cylinder 401 is provided inside the housing 101. The drive mechanism converts the rotation of the output shaft of the drive motor 301 into the rotation of the cleaning cylinder 401 when the mounting plate 304 slides any distance. The drive mechanism includes a drive gear 404 disposed at the bottom of the cleaning cylinder 401, and a gear ring 203 is disposed inside the housing 101 that can be translated in its plane through the mounting assembly. The drive gear 404 meshes with the gear ring 203.

[0051] As the drive motor 301 drives the mounting base 302 to rotate, the mounting base 302 drives the mounting plate 304 to swing in a circle, thereby causing the cleaning cylinder 401 to revolve within the housing 101. During this revolve, the cleaning cylinder 401 can rotate on its own axis through the meshing between the drive gear 404 and the gear ring 203, thereby enabling the moving annular brush 402 to thoroughly clean the end and periphery of the gun-shaped instrument, effectively reducing cleaning dead angles.

[0052] like Figure 1 , 5 As shown in Figure 6, in this embodiment, the mounting assembly includes at least two sets of mounting posts 205. The axes of the two sets of mounting posts 205 are perpendicular and arranged around the toothed ring 203. Guide blocks 202 are slidably disposed on the mounting posts 205 along their axes. The housing 101 is fixedly provided with the same number of slide rails 201 as the guide blocks 202. The extension directions of adjacent sets of slide rails 201 are perpendicular. Multiple sets of guide blocks 202 are slidably disposed within multiple sets of slide rails 201. The bottom of the mounting plate 304 is provided with a connecting assembly that connects to the toothed ring 203. The toothed ring 203 is driven to translate with the mounting plate 304 through the connecting assembly. The connecting assembly includes a connecting ring 204 disposed on the toothed ring 203 and arranged concentrically therewith. The bottom of the mounting plate 304 is provided with an arc-shaped frame 308, which is slidably engaged with the connecting ring 204.

[0053] As the cleaning cylinder 401 is pushed by the end of the instrument to move toward the center of the cleaning port 103, the mounting plate 304 slides at the end of the mounting base 302. During the sliding process, the mounting plate 304 drives the gear ring 203 to move in the same direction as the drive gear 404 via the arc frame 308. The guide block 202 is guided by the slide rail 201, and the mounting post 205 is guided by the guide block 202, so that the gear ring 203 can only move in its plane and cannot rotate. Thus, the relative movement between the drive gear 404 and the gear ring 203 causes the cleaning cylinder 401 to rotate during the revolution, so as to quickly brush the end of the instrument. During the brushing process, the movement of the mounting plate 304 compresses the elastic element 307, and the elastic element 307 applies elastic force to the cleaning cylinder 401. The brushing force can be adjusted by controlling the downward extension distance of the instrument.

[0054] like Figure 6 As shown, in this embodiment, a control switch 306 is provided on one side of the mounting plate 304. The control switch 306 is electrically connected to the drive motor 301 and the water supply system. One end of the elastic member 307 abuts against the control switch 306. During the downward insertion of the instrument to push the cleaning cylinder 401 to slide, the elastic member 307 triggers the control switch 306, thereby starting the drive motor 301 and the water supply system. This eliminates the need for manual control of the device's start and stop, further improving the convenience of using the device.

[0055] like Figure 1 , 2 As shown in Figure 7, in this embodiment, a brush column 403 is also fixedly installed on the cleaning cylinder 401. A mounting bracket 501 is hinged to the brush column 403. A scraper 505 is provided at the bottom of the mounting bracket 501. The scraper 505 contacts the inner side of the annular brush 402. The scraper 505 is provided with scraping teeth. The scraper 505 is connected to the mounting base 302 through a limiting component. The scraper 505 is driven by the limiting component to always move on the side away from the cleaning port 103. The limiting component includes an extension rod 303 mounted on the mounting base 302, a guide seat 305 mounted on the mounting plate 304, the guide seat 305 being slidably mounted on the extension rod 303, a connecting frame 504 being fixedly connected to one end of the extension rod 303, an arc-shaped slider 503 being mounted on one end of the connecting frame 504, an annular track 109 being mounted at the bottom of the cover 102, the arc-shaped slider 503 being slidably engaged in the annular track 109, and a limiting protrusion 502 being mounted on the mounting frame 501, the limiting protrusion 502 being slidably engaged in the bottom of the arc-shaped slider 503.

[0056] Tools such as gun-shaped tweezers, clamps, and pliers can be rubbed on the brush column 403 to clean its inner corners. During the cleaning process, the guide seat 305 and the extension rod 303 cooperate to position the sliding of the mounting plate 304, so that the mounting plate 304 can stably follow the rotation of the mounting base 302 and can compress the elastic element 307. During the rotation of the mounting base 302, the connecting frame 504 drives the arc-shaped slider 503 to slide in the annular track 109. Then, through the cooperation of the arc-shaped slider 503 and the limiting protrusion 502, the scraper 505 moves with the cleaning cylinder 401 in the housing 101. During the rotation of the cleaning cylinder 401, the contact with the scraper 505 removes the impurities attached to the annular brush 402, and the impurities are removed by the action of the nozzle 106, avoiding the long-term adhesion of impurities to the annular brush 402 and further improving the cleaning effect.

[0057] Specific usage and beneficial effects of the present invention:

[0058] This device can be used for temporary cleaning during surgery. In use, the end of the gun-shaped instrument to be cleaned is inserted into the cleaning port 103 and contacts the annular brush 402 on the inverted conical surface of the cleaning cylinder 401. Cleaning fluid is sprayed from the spray gun 105 to clean the end of the gun-shaped instrument. The end of the gun-shaped instrument, in conjunction with the inverted conical surface of the cleaning cylinder 401, pushes the cleaning cylinder 401 closer to the center of the cleaning port 103, causing the mounting plate 304 to slide at one end of the mounting base 302 to compress the elastic element 307. The drive motor 301 drives the mounting base 302 to rotate, causing the cleaning cylinder 401 to revolve within the housing 101 along the output shaft of the drive motor 301. The drive mechanism then... The rotation of the output shaft of motor 301 is converted into driving the cleaning cylinder 401 to rotate, so that the annular brush 402 inside the cleaning cylinder 401 moves and contacts each surface of the gun-shaped instrument in sequence to thoroughly clean the cleaning end of the gun-shaped instrument. At the same time, even if the mounting plate 304 slides, it can continue to drive the cleaning cylinder 401 to rotate. The user can push the inverted conical surface of the cleaning cylinder 401 downward to move it a different distance according to the different materials of the instrument. Under the action of elastic element 307, the annular brush generates different pressures on the instrument, thereby controlling the brushing force independently. This effectively avoids wear and damage to the end of the instrument made of fragile materials due to uncontrollable brushing force during the cleaning process, thus improving the practical value of the cleaning device.

[0059] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above. Modifications or improvements can be made to the present invention, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.

Claims

1. An in-situ cleaning device for a gun-like instrument, characterized in that, Including: The housing (101) is provided with a cover (102), and the cover (102) is provided with a cleaning port (103). A drive motor (301) is fixedly installed inside the housing (101). A mounting base (302) is provided on the output shaft of the drive motor (301). A mounting plate (304) is slidably provided on one end of the mounting base (302). An elastic element (307) is provided between the mounting base (302) and the mounting plate (304). A cleaning cylinder (401) is rotatably mounted on the mounting plate (304) and eccentrically arranged with respect to the cleaning port (103). The middle section of the cleaning cylinder (401) is an inverted conical surface. An annular brush (402) is provided inside the cleaning cylinder (401). A spray gun (105) facing the inverted conical surface is provided on the cover (102). A drive mechanism is disposed inside the housing (101) and connected to the cleaning cylinder (401) to convert the rotation of the output shaft of the drive motor (301) into driving the cleaning cylinder (401) to rotate when the mounting plate (304) slides any distance. The driving mechanism includes: A drive gear (404) is disposed at the bottom of the cleaning cylinder (401); A gear ring (203) is disposed within the housing (101) and can be translatably mounted in its plane via a mounting assembly; the drive gear (404) meshes with the gear ring (203). and A connecting component is disposed at the bottom of the mounting plate (304) and connected to the toothed ring (203) to drive the toothed ring (203) to translate along with the mounting plate (304); The installation components include: Mounting posts (205) are provided in at least two sets, with their axes perpendicular to each other, and are arranged around the toothed ring (203). Guide blocks (202) are slidably provided on the mounting posts (205) along their axes; and The slide rail (201) is provided with the same number of sets as the guide block (202), and the extension directions of two adjacent sets of slide rails (201) are perpendicular, and it is fixedly installed in the housing (101). The multiple sets of guide blocks (202) are respectively slidably installed in the multiple sets of slide rails (201). The connection component includes: A connecting ring (204) is disposed on the toothed ring (203) and arranged concentrically thereto; and An arc-shaped frame (308) is disposed at the bottom of the mounting plate (304) and is slidably engaged on the connecting ring (204).

2. The intraoperative cleaning device for a gun-shaped instrument according to claim 1, characterized in that: The bottom of the cover (102) is provided with multiple sets of nozzles (106), and the cover (102) is provided with a water inlet (104). The water inlet (104) is connected to the spray gun (105) and the multiple sets of nozzles (106), and the water inlet (104) is connected to an external water supply system.

3. The intraoperative cleaning device for a gun-shaped instrument according to claim 2, characterized in that: A control switch (306) is provided on one side of the mounting plate (304). The control switch (306) is electrically connected to the drive motor (301) and the water supply system. One end of the elastic member (307) abuts against the control switch (306).

4. The intraoperative cleaning device for a gun-shaped instrument according to claim 1, characterized in that: The bottom of the housing (101) is provided with a drain outlet (107), and a removable filter screen (108) is provided above the drain outlet (107) at the bottom of the housing (101).

5. The intraoperative cleaning device for a gun-shaped instrument according to claim 1, characterized in that: A brush column (403) is also fixedly installed on the cleaning cylinder (401).

6. The intraoperative cleaning device for a gun-shaped instrument according to claim 5, characterized in that: A mounting bracket (501) is hinged to the brush column (403). A scraper (505) is provided at the bottom of the mounting bracket (501). The scraper (505) contacts the inner side of the annular brush (402). The scraper (505) is provided with scraping teeth. The scraper (505) is connected to the mounting base (302) through a limiting component. The scraper (505) is driven by the limiting component to always move on the side away from the cleaning port (103).

7. The intraoperative cleaning device for a gun-shaped instrument according to claim 6, characterized in that, The limiting component includes: An extension rod (303) is provided on the mounting base (302), and a guide seat (305) is provided on the mounting plate (304). The guide seat (305) is slidably disposed on the extension rod (303). A connecting frame (504) is fixedly connected at one end to the extension rod (303), and an arc-shaped slider (503) is provided at the other end. A ring track (109) is provided at the bottom of the cover (102), and the arc-shaped slider (503) is slidably engaged within the ring track (109). A limiting protrusion (502) is provided on the mounting bracket (501) and is slidably engaged at the bottom of the arc-shaped slider (503).