A claw-shaped foreign body forceps

Abstract

The utility model discloses a claw shape foreign body forceps, wherein, including: the outer sheath is installed in the inside of the handle of forceps, the inside of outer sheath is equipped with two end communication sheath channel, the handle of forceps has an installation channel, the sheath channel is linked with the installation channel, the right end of circular inner core subassembly and the right end of hook shape inner core subassembly all install in the sheath channel, the left end of circular inner core subassembly and the left end of hook shape inner core subassembly all stretch out or retract the outer sheath, the forceps ring sliding cover is established in the outer wall of handle of forceps, the forceps ring is connected with hook shape inner core subassembly, and the forceps ring drives hook shape inner core subassembly moves. Through the application of the utility model, provide a claw shape foreign body forceps, realize the selective use of circular inner core main part and hook shape inner core main part two kinds of claw head through circular boost rod and forceps ring, improve the convenience of doctor's use, shorten the operation time, improve the patient clinical experience.

Description

Technical Field

[0001] This utility model relates to the technical field of medical devices and related fields, and in particular to a claw-shaped foreign body forceps. Background Technology

[0002] Claw forceps are used in minimally invasive endoscopic foreign body removal surgery. The foreign body is located in the body through an endoscope, grasped, and removed from the body for disposal or analysis before disposal. It has the advantages of small incision, few surgical complications, and minimal impact on the patient.

[0003] Currently, there are two types of claw-shaped foreign body forceps on the market: one with hook-shaped claw tips and the other with ring-shaped claw tips. Hook-shaped products are characterized by a firm grip that is not easy to slip out, and are mainly used for removing lumpy foreign bodies such as stones. Ring-shaped products are characterized by smooth, rounded claw tips that are not easy to damage the grasped object, and are mainly used for removing various polyps removed during endoscopic surgery, which can preserve the tissue structure for more accurate laboratory analysis.

[0004] During surgery, multiple foreign objects often need to be removed. In such cases, doctors need to change the foreign body forceps multiple times, which prolongs the operation time and causes more pain to the patient. Utility Model Content

[0005] In view of this, and to solve the above problems, the purpose of this utility model is to provide a claw-shaped foreign object clamp, comprising:

[0006] Outer sheath, circular inner core assembly, hook-shaped inner core assembly, clamp ring, clamp handle;

[0007] The outer sheath is installed inside the clamp handle, and the interior of the outer sheath has a sheath channel that connects both ends;

[0008] The clamp handle has an installation channel, and the sheath channel communicates with the installation channel;

[0009] The right end of the circular inner core assembly and the right end of the hook-shaped inner core assembly are both installed in the sheath tube channel. The left end of the circular inner core assembly and the left end of the hook-shaped inner core assembly both extend out of or retract into the outer sheath tube. The clamp ring is slidably sleeved on the outer wall of the clamp handle. The clamp ring is connected to the hook-shaped inner core assembly, and the clamp ring drives the hook-shaped inner core assembly to move.

[0010] The aforementioned claw-shaped foreign object clamp includes a circular inner core assembly comprising a circular inner core body and a circular push rod; the circular inner core body is installed within the sheath channel, the circular push rod is installed within the installation channel, the right end of the circular inner core body is connected to the circular push rod, and the circular push rod is capable of driving the circular inner core body to extend or retract from the outer sheath.

[0011] The aforementioned claw-shaped foreign object clamp includes a hook-shaped inner core assembly comprising a hook-shaped inner core body and a hook-shaped push rod. The hook-shaped inner core body is installed within the sheath channel, and the hook-shaped push rod is installed within the installation channel. The right end of the hook-shaped push rod is connected to the clamp ring, and the right end of the hook-shaped inner core body is connected to the left end of the hook-shaped push rod. The clamp ring can extend or retract the hook-shaped inner core body from the outer sheath via the hook-shaped push rod.

[0012] In the aforementioned claw-shaped foreign object clamp, the inner wall of the mounting channel extends radially inward to form an extension plate. The right end of the outer sheath is located on the left side of the extension plate. The extension plate has a first through hole and a second through hole. The left end of the circular push rod passes through the first through hole and is connected to the circular inner core body. The left end of the hook-shaped push rod passes through the second through hole and is connected to the hook-shaped inner core body.

[0013] In the aforementioned claw-shaped foreign object clamp, the right end of the circular push rod extends radially outward to form a limiting post, the outer diameter of which is larger than the inner diameter of the first through hole.

[0014] In the aforementioned claw-shaped foreign object clamp, an elongated hole is formed on the outer wall of the clamp handle, the length of the elongated hole extends along the length of the clamp handle, a connecting block is formed on the inner wall of the clamp ring, the connecting block passes through the elongated hole and extends into the mounting channel, and the right end of the hook-shaped push rod is mounted on the connecting block.

[0015] In the aforementioned claw-shaped foreign object clamp, the outer wall of the clamp ring contracts radially inward to form an annular groove.

[0016] In the aforementioned claw-shaped foreign object clamp, the included angle of the inner wall of the annular groove is rounded.

[0017] In the aforementioned claw-shaped foreign object clamp, the outer diameter of the clamp ring located on the right side of the annular groove is greater than the outer diameter of the clamp ring located on the left side of the annular groove.

[0018] The aforementioned claw-shaped foreign object clamp has a ring at the right end of the clamp handle.

[0019] The positive effects of the above technical solution compared with the existing technology are:

[0020] By applying this utility model, a claw-shaped foreign body forceps is provided. Through the circular push rod and the forceps ring, two types of claw heads, a circular inner core body and a hook-shaped inner core body, can be selectively used. The same product can have two uses without the need to change the foreign body forceps, which improves the convenience of doctors, shortens the operation time, and improves the clinical experience of patients. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of a claw-shaped foreign object clamp according to the present invention.

[0022] Figure 2 This is a schematic diagram of the first state of a claw-shaped foreign object clamp according to the present invention.

[0023] Figure 3 This is a schematic diagram of the second state of a claw-shaped foreign object clamp according to the present invention.

[0024] Figure 4 This is a schematic diagram of the third state of a claw-shaped foreign object clamp according to the present invention.

[0025] 1. Outer sheath; 2. Circular inner core assembly; 3. Hook-shaped inner core assembly; 4. Clamping ring; 5. Clamping handle; 6. Sheath channel; 7. Installation channel; 8. Circular inner core body; 9. Circular push rod; 10. Hook-shaped inner core body; 11. Hook-shaped push rod; 12. Extension plate; 13. Limiting post; 14. Connecting block; 15. Annular groove; 16. Ring body. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention.

[0027] The structures, proportions, and sizes illustrated in the accompanying drawings are merely for illustrative purposes and to aid those skilled in the art. They are not intended to limit the scope of this invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, provided they do not affect the effectiveness or purpose of this invention, should still fall within the scope of the technical content disclosed herein. Furthermore, the terms "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0028] like Figures 1 to 4 As shown, a preferred embodiment of the claw-shaped foreign body clamp includes: an outer sheath 1, a circular inner core assembly 2, a hook-shaped inner core assembly 3, a clamp ring 4, and a clamp handle 5.

[0029] The outer sheath tube 1 is installed on the clamp handle 5. The inner part of the outer sheath tube 1 is provided with a sheath tube channel 6 that is connected at both ends. The clamp handle 5 has an installation channel 7, and the sheath tube channel 6 is connected to the installation channel 7. The right end of the circular inner core component 2 and the right end of the hook-shaped inner core component 3 are both installed in the sheath tube channel 6. The left end of the circular inner core component 2 and the left end of the hook-shaped inner core component 3 extend out of or retract into the outer sheath tube 1. The clamp ring 4 is slidably sleeved on the outer wall of the clamp handle 5. The clamp ring 4 is connected to the hook-shaped inner core component 3, and the clamp ring 4 can drive the hook-shaped inner core component 3 to move.

[0030] In practical use, the user opens or closes the hook-shaped inner core assembly 3 using the handle 5 and the clamp ring 4. The user can also operate the circular inner core assembly 2 independently, allowing it to open or close, thus achieving two purposes with the same product. This improves the convenience for doctors, shortens surgical time, and enhances the patient's clinical experience.

[0031] Based on the above, this utility model also has the following embodiments:

[0032] Furthermore, a claw-shaped foreign object clamp, wherein the circular inner core assembly 2 includes: a circular inner core body 8 and a circular push rod 9; the circular inner core body 8 is installed in the sheath channel 6, the circular push rod 9 is installed in the installation channel 7, the right end of the circular inner core body 8 is connected to the circular push rod 9, and the circular push rod 9 can drive the circular inner core body 8 to extend or retract into the outer sheath 1.

[0033] Furthermore, a claw-shaped foreign object clamp, wherein the hook-shaped inner core assembly 3 includes: a hook-shaped inner core body 10 and a hook-shaped push rod 11; the hook-shaped inner core body 10 is installed in the sheath channel 6, the hook-shaped push rod 11 is installed in the installation channel 7, the right end of the hook-shaped push rod 11 is connected to the clamp ring 4, the right end of the hook-shaped inner core body 10 is connected to the left end of the hook-shaped push rod 11, and the clamp ring 4 can drive the hook-shaped inner core body 10 to extend or retract into the outer sheath 1 through the hook-shaped push rod 11.

[0034] Furthermore, in a claw-shaped foreign object clamp, an extension plate 12 is formed by the inner wall of the mounting channel 7 extending radially inward. The right end of the outer sheath tube 1 is located on the left side of the extension plate 12. The extension plate 12 has a first through hole and a second through hole. The left end of the circular push rod 9 passes through the first through hole and is connected to the circular inner core body 8. The left end of the hook-shaped push rod 11 passes through the second through hole and is connected to the hook-shaped inner core body 10.

[0035] Furthermore, in a claw-shaped foreign object clamp, the right end of the circular push rod 9 extends radially outward to form a limiting post 13, the outer diameter of which is larger than the inner diameter of the first through hole. Furthermore, the limiting post 13 prevents the circular push rod 9 from falling off.

[0036] In a preferred embodiment, the limiting post 13 of the circular push rod 9 can extend out of the clamp handle 5, and at this time the clamp handle 5 has a groove along its length direction, the limiting post 13 of the circular push rod 9 can slide in the groove, and the user can move the circular push rod 9 through the limiting post 13, thereby moving the circular inner core body 8.

[0037] Furthermore, in a claw-shaped foreign object clamp, the outer wall of the clamp handle 5 has an elongated hole extending along the length of the handle 5. The inner wall of the clamp ring 4 has a connecting block 14, which passes through the elongated hole and extends into the mounting channel 7. The right end of the hook-shaped push rod 11 is mounted on the connecting block 14. Furthermore, the hook-shaped push rod 11 is moved by the connecting block 14, thereby extending or retracting the hook-shaped inner core body 10.

[0038] Furthermore, in a claw-shaped foreign body forceps, the outer wall of the forceps ring 4 tapers radially inward to form an annular groove 15. Furthermore, the annular groove 15 facilitates the doctor's gripping of the forceps ring 4.

[0039] Furthermore, in a claw-shaped foreign body forceps, the included angle of the inner wall of the annular groove 15 is rounded. Further, the rounded angle of the inner wall of the annular groove 15 enhances the comfort of the doctor during use.

[0040] Furthermore, in a claw-shaped foreign body forceps, the outer diameter of the forceps ring 4 on the right side of the annular groove 15 is larger than the outer diameter of the forceps ring 4 on the left side of the annular groove 15. Furthermore, the outer diameter on the right side of the forceps ring 4 is larger than the outer diameter on the left side of the forceps ring 4, facilitating the application of force by the physician to the forceps ring 4.

[0041] Furthermore, a claw-shaped foreign body forceps is provided, wherein the right end of the forceps handle 5 has a ring 16. Furthermore, the ring 16 facilitates the doctor's control of the forceps handle 5, preventing the forceps handle 5 from shaking or moving.

[0042] In actual use, the doctor holds the outer sheath 1 of the device with one hand, and with the other hand, the thumb passes through the ring 16 of the handle 5, and the index and middle fingers clamp the clamp ring 4. Then, the doctor pulls the clamp ring 4 to the rear end, which can close the hook-shaped inner core body 10 and retract it into the outer sheath 1, thereby inserting it into the endoscope channel. By pushing the outer sheath 1 forward and observing with the help of the endoscope, the outer sheath 1 is inserted into the location of the foreign object to be removed. The doctor aligns the end of the outer sheath 1 with the foreign object, the doctor's thumb clamps the ring 16, the index and middle fingers clamp the clamp ring 4 and push the clamp ring 4 forward. The clamp ring 4 drives the hook-shaped push rod 11 to move forward, thereby pushing the hook-shaped inner core body 10 out of the outer sheath 1 to open and hook the foreign object. The doctor then keeps their thumb engaged in the ring 16, while their index and middle fingers grip the clamp ring 4 and push it backward. The clamp ring 4 causes the hook-shaped push rod 11 to move backward, thereby retracting the hook-shaped inner core body 10 into the outer sheath 1 and closing the hook-shaped inner core body 10 to grasp the foreign object. The doctor then uses one thumb to keep engaged in the ring 16 of the clamp handle 5, while their index and middle fingers grip the clamp ring 4 and apply backward force to prevent the foreign object from falling out. With their other hand, they grasp the outer sheath 1 and move it backward to withdraw the portion of the device inserted into the endoscope. When it is time to remove the polyp tissue for testing, the circular push rod 9 is pushed by the limiting post 13 to open the circular inner core body 8. After aligning with the polyp tissue, the doctor keeps the thumb in the ring 16 of the forceps handle 5, and uses the index and middle fingers to clamp the forceps ring 4 and pushes the forceps ring 4 backward. Then, through the contraction of the hook-shaped inner core body 10, the hook-shaped inner core body 10 cooperates with the circular inner core body 8 to contract and clamp the polyp tissue.

[0043] The above description is only a preferred embodiment of the present utility model and does not limit the implementation method and protection scope of the present utility model. Those skilled in the art should realize that all solutions obtained by equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A claw-shaped foreign object clamp, characterized in that, include: Outer sheath, circular inner core assembly, hook-shaped inner core assembly, clamp ring, clamp handle; The outer sheath is installed inside the clamp handle, and the interior of the outer sheath has a sheath channel that connects both ends; The clamp handle has an installation channel, and the sheath channel communicates with the installation channel; The right end of the circular inner core assembly and the right end of the hook-shaped inner core assembly are both installed in the sheath tube channel. The left end of the circular inner core assembly and the left end of the hook-shaped inner core assembly both extend out of or retract into the outer sheath tube. The clamp ring is slidably sleeved on the outer wall of the clamp handle. The clamp ring is connected to the hook-shaped inner core assembly, and the clamp ring drives the hook-shaped inner core assembly to move.

2. The claw-shaped foreign object clamp according to claim 1, characterized in that, The circular inner core assembly includes: a circular inner core body and a circular push rod; the circular inner core body is installed in the sheath channel, the circular push rod is installed in the installation channel, the right end of the circular inner core body is connected to the circular push rod, and the circular push rod can drive the circular inner core body to extend or retract from the outer sheath.

3. The claw-shaped foreign object clamp according to claim 2, characterized in that, The hook-shaped inner core assembly includes: a hook-shaped inner core body and a hook-shaped push rod; the hook-shaped inner core body is installed in the sheath channel, the hook-shaped push rod is installed in the installation channel, the right end of the hook-shaped push rod is connected to the clamping ring, the right end of the hook-shaped inner core body is connected to the left end of the hook-shaped push rod, and the clamping ring can drive the hook-shaped inner core body to extend or retract into the outer sheath through the hook-shaped push rod.

4. The claw-shaped foreign object clamp according to claim 3, characterized in that, The inner wall of the installation channel extends radially inward to form an extension plate. The right end of the outer sheath is located on the left side of the extension plate. The extension plate has a first through hole and a second through hole. The left end of the circular push rod passes through the first through hole and is connected to the circular inner core body. The left end of the hook-shaped push rod passes through the second through hole and is connected to the hook-shaped inner core body.

5. A claw-shaped foreign object clamp according to claim 4, characterized in that, The right end of the circular push rod extends radially outward to form a limiting post, the outer diameter of which is larger than the inner diameter of the first through hole.

6. A claw-shaped foreign object clamp according to claim 3, characterized in that, The outer wall of the pliers handle has an elongated hole that extends along the length of the pliers handle. The inner wall of the pliers ring has a connecting block that passes through the elongated hole and extends into the mounting channel. The right end of the hook-shaped push rod is mounted on the connecting block.

7. The claw-shaped foreign object clamp according to claim 1, characterized in that, The outer wall of the clamp ring contracts radially inward to form an annular groove.

8. A claw-shaped foreign object clamp according to claim 7, characterized in that, The included angle of the inner wall of the annular groove is rounded.

9. A claw-shaped foreign object clamp according to claim 7, characterized in that, The outer diameter of the clamping ring located on the right side of the annular groove is greater than the outer diameter of the clamping ring located on the left side of the annular groove.

10. A claw-shaped foreign object clamp according to claim 1, characterized in that, The right end of the clamp handle has a ring.

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