Rectal biopsy forceps for pediatric surgery

Abstract

This pediatric surgical rectal biopsy forceps provides precise cutting and collection of rectal biological samples by incorporating a cutting mechanism in cooperation with a negative pressure tube, ensuring the stability of the negative pressure environment through the design of a sealing plug and preventing sample leakage, allowing the movable tube to move along the extension tube, and enabling precise adjustment of the sample collection position and volume by aligning the deep scale with the sample collection volume scale to meet the requirements of various clinical situations, improving the accuracy and safety of sample collection by allowing real-time observation of the conditions around the sample collection hole on the monitoring device, and making operation convenient and easy for doctors and nurses to control by placing independent cutting buttons and negative pressure activation buttons on the handle. [Solution] A handle 5 is fixedly connected to the lower end of the forceps 1, an extension tube 2 is fixedly connected to the left end of the forceps, a movable cylinder 3 is provided at the left end of the extension tube, a cutting mechanism is provided inside the movable cylinder, a sample collection hole is provided on the side wall of the movable cylinder, and a negative pressure tube 4 is provided on the right side of the forceps.

Description

Technical Field

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[0001] The present invention relates to the technical field of biopsy forceps, and particularly to rectal biopsy forceps for pediatric surgery.

Background Art

[0002] In the clinical diagnosis and treatment of pediatric surgery, pathological analysis is usually performed through sampling of biological tissues for the diagnosis of rectal diseases. For children, due to the narrow rectal lumen and delicate mucosa, the requirements for accuracy, safety and convenience in sampling instruments are much higher than those for adults. In the sampling operation, it is necessary to strictly control the sampling site, sampling volume and operation strength, avoid secondary damage to the rectal mucosa, and ensure the safety of the sampling process and the integrity of the sample.

[0003] Existing rectal biopsy forceps for pediatric surgery have obvious defects. When sampling, the sampling volume is mainly adjusted by the magnitude of the pressure of the negative pressure device, and the sampling volume cannot be precisely controlled. Moreover, it is difficult to precisely adjust the sampling position with existing devices, and the depth and specific position of sampling cannot be flexibly adjusted according to the diagnostic requirements. Therefore, the flexibility of operation is poor, the difficulty of operation for doctors and nurses is increased, the accuracy and safety of sampling are also reduced, and it cannot fully meet the special needs of pediatric rectal diagnosis and treatment.

[0004] Therefore, the present invention proposes rectal biopsy forceps for pediatric surgery to solve the above problems.

Summary of the Invention

Problems to be Solved by the Invention

[0005] The purpose of the present invention is to provide rectal biopsy forceps for pediatric surgery to solve the problems raised in the above background art.

Means for Solving the Problems

[0007] Pediatric surgical rectal biopsy forceps are, The device has a forceps body, a handle fixedly connected to the lower end of the forceps body, an extension tube fixedly connected to the left end of the forceps body, a movable cylinder provided at the left end of the extension tube, a cutting mechanism provided inside the movable cylinder, one end of the extension tube detached from the forceps body passing through the right side wall of the movable cylinder and fixedly connected to a sealing plug, the outer wall of the sealing plug abutting against the inner wall of the movable cylinder and the outer end of the cutting mechanism, a sample collection hole provided on the side wall of the movable cylinder, a negative pressure tube provided to the right side of the forceps body, the left end of the negative pressure tube sequentially passing through the forceps body, the extension tube and the sealing plug and communicating with the position of the sample collection hole, a negative pressure device connected to the right end of the negative pressure tube, a cutting button and a negative pressure activation button provided on the handle, and the negative pressure activation button electrically connected to the negative pressure device.

[0008] Preferably, a deep scale is provided on the side wall of the movable cylinder, a pressure balancing hole is provided on the side wall of the movable cylinder, a lock bolt is provided on the outside of the movable cylinder, the lock bolt penetrates the side wall of the movable cylinder and contacts the outer wall of the extension pipe, and the lock bolt screws into the side wall of the movable cylinder.

[0009] Preferably, a sample volume scale is provided on the outer wall of the extension tube.

[0010] Preferably, a mounting groove is provided on the outer wall of the movable cylinder, and a monitoring device is installed in the mounting groove with the left inner wall positioned diagonally, and the monitoring end of the monitoring device faces the front side of the sample collection hole.

[0011] Preferably, the cutting mechanism has a position limiting frame fixed on the inner wall of the moving cylinder, a cutting blade slidably connected within the position limiting frame, a planar cutting blade provided at the left end of the cutting blade, a cutting actuation motor provided within the clamp, a cutting threaded tube fixedly connected to the output terminal of the cutting actuation motor, the left end of the cutting threaded tube extending through the clamp and the right wall of the moving cylinder to the space between the extension tube and the moving cylinder, a cutting threaded rod screwed into the cutting threaded tube, and the left end of the cutting threaded rod fixedly connected to the right end of the cutting blade. [Effects of the Invention]

[0012] The rectal biopsy forceps for pediatric surgery according to this invention have the following beneficial effects compared to the current technology.

[0013] 1. The rectal biopsy forceps for pediatric surgery according to this invention allows for precise cutting and collection of rectal biological samples by incorporating a cutting mechanism and cooperating it with a negative pressure tube. The design of the sealing plug ensures the stability of the negative pressure environment and prevents sample leakage. The movable tube is movable along the extension tube, and by aligning the deep scale with the sample collection volume scale, the sample collection position and sample collection volume can be precisely adjusted to meet the requirements of various clinical situations.

[0014] 2. The rectal biopsy forceps for pediatric surgery according to this invention improves the accuracy and safety of sample collection by allowing real-time observation of the conditions around the sample collection port on the monitoring device. Operation is made more convenient by placing an independent cutting button and a negative pressure activation button on the handle, facilitating control by physicians and nurses. Furthermore, the position of the moving cylinder can be fixed with a lock bolt, further improving operational stability. The forceps have a rational structural design, significantly improving safety, precision, and convenience, and are suitable for the medical needs of pediatric patients. [Brief explanation of the drawing]

[0015] [Figure 1] Figure 1 is a schematic diagram showing the three-dimensional structure of the present invention. [Figure 2] Figure 2 is a localized enlarged view of area A in Figure 1. [Figure 3] Figure 3 is a schematic diagram showing the three-dimensional structure of the present invention from a different viewpoint. [Figure 4] Figure 4 is a localized enlarged view of section B in Figure 3. [Figure 5] Figure 5 is a schematic diagram showing the three-dimensional cross-sectional structure of the movable cylinder of the present invention. [Figure 6] Figure 6 is a localized enlarged view of section C in Figure 5. [Figure 7]Figure 7 is a schematic diagram showing the three-dimensional structure of the cutting blade of the present invention. [Figure 8] Figure 8 is a schematic diagram showing the position of the cutting-acting electric motor inside the forceps of the present invention. [Modes for carrying out the invention]

[0016] We will now clearly and completely describe the technical means in the embodiments of the present invention with reference to the drawings of the embodiments of the present invention. Obviously, the embodiments described are only a part of the embodiments of the present invention, not all embodiments. All other embodiments that a person skilled in the art could obtain without expending creative labor based on the embodiments of the present invention are included within the scope of protection of the present invention.

[0017] Referring to Figure 1-8, the present invention provides one technical means. The pediatric surgical rectal biopsy forceps have a forceps body 1, a handle 5 fixedly connected to the lower end of the forceps body 1, an extension tube 2 fixedly connected to the left end of the forceps body 1, a movable tube 3 provided at the left end of the extension tube 2, a cutting mechanism provided inside the movable tube 3, one end of the extension tube 2 detaching from the forceps body 1 passing through the right side wall of the movable tube 3 and fixedly connected to a sealing plug 12, the outer wall of the sealing plug 12 abutting against the inner wall of the movable tube 3 and the outer end of the cutting mechanism, a sample collection hole 9 provided on the side wall of the movable tube 3, a negative pressure tube 4 provided on the right side of the forceps body 1, the left end of the negative pressure tube 4 passing sequentially through the forceps body 1, extension tube 2 and sealing plug 12 and communicating with the position of the sample collection hole 9, a negative pressure device connected to the right end of the negative pressure tube 4, a cutting button 6 and a negative pressure activation button 7 provided on the handle 5, the negative pressure activation button 7 being electrically connected to the negative pressure device. When collecting a sample, the negative pressure device is activated by pressing the negative pressure activation button 7. The negative pressure device applies negative pressure to the sample collection hole 9 through the negative pressure tube 4, and under negative pressure, it is possible to draw the mucous membrane to be collected from the rectum into the mobile cylinder 3 from the position of the sample collection hole 9.

[0018] A depth scale 19 is provided on the side wall of the moving cylinder 3, and the depth scale 19 is used to measure the depth of inserting the moving cylinder 3 into the rectum. A pressure balance hole 7 is provided on the side wall of the moving cylinder 3, and a locking bolt 18 is provided outside the moving cylinder 3. The locking bolt 18 penetrates the side wall of the moving cylinder 3 and contacts the outer side wall of the extension tube 2. The locking bolt 18 is screwed into the side wall of the moving cylinder 3.

[0019] A sample collection amount scale 20 is provided on the outer side wall of the extension tube 2. During use, the position of the moving cylinder 3 is adjusted according to the sample collection amount. When adjusting, loosen the locking bolt 18 and adjust the position of the moving cylinder 3 in the extension tube 2. The scale corresponding to the sample collection amount scale 20 on the right side wall of the moving cylinder 3 corresponds to the sample collection amount. After adjustment, just turn and tighten the locking bolt 18.

[0020] An attachment groove 10 is provided on the outer side wall of the moving cylinder 3. In the attachment groove 10, a monitoring device 11 is provided with its left inner wall arranged obliquely. The monitoring end of the monitoring device 11 faces the front side of the sample collection hole 9. The monitoring device 11 is equipped with a lighting device. During sample collection, by combining the monitoring device 11 with the lighting device, the situation inside the rectum is observed, thereby facilitating the identification of the sample collection position.

[0021] The cutting mechanism has a position limiting frame 13 fixed on the inner side wall of the moving cylinder 3. Inside the position limiting frame 13, a cutting blade 14 is slidably connected. A flat cutting blade is provided at the left end of the cutting blade 14. A cutting operating motor 8 is provided inside the pliers body 1. A cutting screw tube 16 is fixedly connected to the output end of the cutting operating motor 8. The left end of the cutting screw tube 16 penetrates the right side walls of the pliers body 1 and the moving cylinder 3 and extends to between the extension tube 2 and the moving cylinder 3. A cutting screw rod 15 is screwed into the cutting screw tube 16. The left end of the cutting screw rod 15 is fixedly connected to the right end of the cutting blade 14. After completing the sample collection operation using the negative pressure device and the sample collection hole 9, press the cutting button 6 to start the cutting operating motor 8. The cutting operating motor 8 rotates the cutting screw tube 16. The cutting screw rod 15 moves inside the cutting screw tube 16, and the cutting blade 14 performs a cutting operation at the position of the sample collection hole 9. The sample after sample collection remains inside the moving cylinder 3.

[0022] The operating principle of this invention is as follows:

[0023] When using the device, first move the position of the mobile cylinder 3 according to the amount of sample to be collected. When adjusting the position of the mobile cylinder 3, loosen the lock bolt 18 and adjust the position of the mobile cylinder 3. At this time, the sealing plug 12 moves inside the mobile cylinder 3, and the scale on the right side wall of the mobile cylinder 3 corresponding to the sample collection amount scale 20 corresponds to the sample collection amount. After adjusting the position of the mobile cylinder 3, turn the lock bolt 18 to tighten it. When performing the sample collection operation, apply lubricant to the outer wall of the mobile cylinder 3, insert the sample collection cylinder into the rectum through the patient's anus, and use the deep scale 19 to determine the depth to which the mobile cylinder 3 is inserted into the rectum. At the same time, turn the handle 5 to adjust the position of the sample collection hole 9, and simultaneously observe the sample collection position using the monitoring device 11. After determining the sample collection position, press the negative pressure activation button 7 to activate the negative pressure device. The negative pressure device applies negative pressure to the position of the sample collection hole 9 through the negative pressure tube 4, and under the negative pressure, the mucous membrane to be collected in the rectum is drawn into the mobile cylinder 3 from the position of the sample collection hole 9. After completing the sample collection operation, the cutting button 6 is pressed to activate the cutting motor 8, which rotates the cutting threaded tube 16. The cutting threaded rod 15 moves within the cutting threaded tube 16, and the cutting blade 14 performs a cutting operation at the position of the sample collection hole 9, and the sample after collection remains inside the moving cylinder 3.

[0024] Although embodiments of the present invention have already been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of protection of the present invention is defined by the claims and their equivalents. [Explanation of Symbols]

[0025] 1-Forceps; 2-Extension tube; 3-Transfer tube; 4-Vacuum tube; 5-Handle; 6-Cutting button; 7-Vacuum activation button; 8-Cutting actuation motor; 9-Sampling hole; 10-Mounting groove; 11-Monitoring device; 12-Sealing plug; 13-Position limiting frame; 14-Cutting blade; 15-Cutting threaded rod; 16-Cutting threaded tube; 17-Pressure balancing hole; 18-Lock bolt; 19-Depth scale; 20-Sampling volume scale.

Claims

1. A pediatric surgical rectal biopsy forceps having a forceps body (1), wherein a handle (5) is fixedly connected to the lower end of the forceps body (1), an extension tube (2) is fixedly connected to the left end of the forceps body (1), a sliding tube (3) is provided at the left end of the extension tube (2), a cutting mechanism is provided inside the sliding tube (3), one end of the extension tube (2) that is separated from the forceps body (1) penetrates the right side wall of the sliding tube (3) and is fixedly connected to a sealing plug (12), the outer wall of the sealing plug (12) is in contact with the inner wall of the sliding tube (3) and the cutting mechanism The outer end of the structure abuts against a sample collection hole (9) on the side wall of the movable cylinder (3), a negative pressure pipe (4) is provided on the right side of the forceps (1), the left end of the negative pressure pipe (4) sequentially passes through the forceps (1), the extension pipe (2), and the sealing plug (12) and communicates with the position of the sample collection hole (9), a negative pressure device is connected to the right end of the negative pressure pipe (4), a cutting button (6) and a negative pressure activation button (7) are provided on the handle (5), and the negative pressure activation button (7) is electrically connected to the negative pressure device. A pediatric surgical rectal biopsy forceps characterized by the following features.

2. A deep scale (19) is provided on the side wall of the movable cylinder (3), a pressure balancing hole (17) is provided on the side wall of the movable cylinder (3), a lock bolt (18) is provided on the outside of the movable cylinder (3), the lock bolt (18) penetrates the side wall of the movable cylinder (3) and contacts the outer wall of the extension pipe (2), and the lock bolt (18) screws into the side wall of the movable cylinder (3). The pediatric surgical rectal biopsy forceps according to feature 1.

3. The pediatric surgical rectal biopsy forceps according to claim 1, characterized in that a sample collection volume scale (20) is provided on the outer wall of the extension tube (2).

4. A mounting groove (10) is provided on the outer wall of the movable cylinder (3), and a monitoring device (11) is mounted in the mounting groove (10) with the left inner wall positioned diagonally, and the monitoring end of the monitoring device (11) faces the front side of the sample collection hole (9). The pediatric surgical rectal biopsy forceps according to feature 1.

5. The cutting mechanism has a position limiting frame (13) fixed on the inner wall of the movable cylinder (3), a cutting blade (14) is slidably connected within the position limiting frame (13), a planar cutting blade is provided at the left end of the cutting blade (14), a cutting actuation motor (8) is provided within the clamp (1), a cutting threaded tube (16) is fixedly connected to the output end of the cutting actuation motor (8), the left end of the cutting threaded tube (16) extends through the clamp (1) and the right side wall of the movable cylinder (3) to the space between the extension tube (2) and the movable cylinder (3), a cutting threaded rod (15) is screwed into the cutting threaded tube (16), and the left end of the cutting threaded rod (15) is fixedly connected to the right end of the cutting blade (14). The pediatric surgical rectal biopsy forceps according to feature 1.

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