Polyp forceps

Abstract

The utility model provides a pair of polyp forceps, which relates to the technical field of medical instruments and comprises a forceps moving head, a push rod, a forceps fixed head, a fixed rod, a moving handle, a fixed handle, a screw shaft and a limiting piece, the forceps moving head is mounted at the front end of the push rod, and the tail end of the push rod is connected with the moving rod; the fixed clamp head is clamped at the front end of the fixed rod, a positioning groove is formed in the top end of the fixed rod, the top end of the fixed rod is attached to the push rod, a fixed handle is connected to the tail end of the fixed rod through a bolt, a first fixing pin penetrates through the front face of the front end of the fixed handle, and object taking grooves are formed in the front end of the fixed clamp head and the front end of the movable clamp head and used for clamping cut tissue; the limiting groove in the rear end of the push rod is clamped with the limiting piece, so that the front-back moving distance of the push rod is limited, the phenomenon of over-clamping or over-opening of the tong head is prevented, the push rod in the structure is easy to detach, the push rod can be detached upwards by pushing away the limiting piece, and the interior of the push rod can be easily cleaned during cleaning.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a polyp forceps. Background Art

[0002] A vocal cord polyp forceps with Chinese patent number CN204121113U includes a fixed handle, a movable handle, a sleeve, a cable, a fixed forceps head and a movable forceps head. The movable handle is arranged on the fixed handle, the sleeve is arranged at the front end of the fixed handle, the cable is arranged in the sleeve, one end of the cable is connected with the movable handle, and the other end is provided with the movable forceps head. The fixed forceps head is connected with the sleeve. By the above method, the vocal cord polyp forceps of the utility model has the advantages of high reliability, accurate positioning, compact structure, convenient bending, good clamping effect, high resection accuracy, convenient use, etc., and has a broad market prospect in the medical device market.

[0003] Modern medicine generally refers to the neoplasms growing on the surface of human mucous membranes as polyps. Polyps are generally small, and usually a polyp forceps is used to clamp them out. There are problems with the existing polyp forceps on the market. One is the lack of precision. When facing small polyps, it is easy to clamp other tissues. The other is that it is troublesome to clean. It is not easy to disassemble before cleaning the polyps, and residues are likely to be generated in the internal space of the forceps tube. In addition, the forceps head of the polyp forceps is small, and problems such as over-clamping or over-opening of the forceps head are likely to occur. Therefore, a polyp forceps is needed to solve the above problems. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a polyp forceps to solve the problems of insufficient precision in the prior art, easy clamping of other tissues when facing small polyps, troublesome cleaning, not easy disassembly before cleaning the polyps, and easy generation of residues in the internal space of the forceps tube.

[0005] To achieve the above object, the present utility model adopts the following technical solutions: A polyp forceps, comprising a forceps moving head, a push rod, a forceps fixed head, a fixed rod, a moving handle, a fixed handle, a screw shaft and a limiting piece. The forceps moving head is installed at the front end of the push rod, and a moving rod is connected to the end of the push rod. The forceps fixed head is clamped at the front end of the fixed rod. A positioning groove is provided at the top of the fixed rod. The top of the fixed rod is attached to the push rod. The end of the fixed rod is bolted to the fixed handle. A first fixing pin penetrates through the front surface of the front end of the fixed handle. A second fixing pin penetrates through the front surface of the front end of the fixed handle near the first fixing pin. The front end of the push rod is hinged to the forceps moving head. A positioning block is provided at the bottom end of the middle part of the push rod. The positioning block is fitted with the positioning groove on the fixed rod. A pushing block is provided at the end of the push rod. The bottom end of the pushing block is inserted into a moving handle. The moving handle and the front end of the fixed handle are hinged by a screw shaft. A push rod groove is provided at the front end of the moving handle. The pushing block is inserted into the push rod groove. A limiting piece screw hole is provided in the middle of the fixed handle. The end of the limiting piece is aligned with the limiting piece screw hole, and a limiting nail is inserted into the middle of the limiting piece screw hole. The front end of the limiting piece is slidably connected to the end of the push rod.

[0006] Preferably, a tissue-taking groove is provided at the front end of the forceps moving head. The tissue-taking groove is a circular groove for clamping and removing excised tissues. A forceps moving hole is provided at the end of the forceps moving head. A forceps fixing hole is provided at the side of the end of the forceps moving head near the forceps moving hole. The forceps fixing hole matches the front end of the fixed rod to fix the position of the forceps moving head. The forceps moving hole is hinged to the front end of the push rod. The push rod pushes the forceps moving head to axially move around the forceps fixing hole.

[0007] Preferably, a forceps fixing head is provided at the front end of the fixed rod. A tissue-taking groove is provided at the front end of the forceps fixing head and is the same as the tissue-taking groove on the forceps moving head. The forceps fixing head has the functions of positioning and tissue-taking. A first fixing hole is provided at the top of the end of the fixed rod. A second fixing hole is provided at the bottom of the end of the fixed rod. Both the first fixing hole and the second fixing hole match the holes at the front end of the fixed handle.

[0008] Preferably, a limiting groove is provided at the top of the end of the moving handle for the limiting piece to be positioned. A pushing block is provided at the bottom of the limiting groove. The pushing block is circular. The pushing block is installed at the front end of the moving handle and a screw shaft hole is provided in the middle for connecting to the fixed handle.

[0009] Preferably, a push rod groove is provided at the front end of the moving handle. The push rod groove is a circular groove. The outer diameter of the push rod groove is the same as the outer diameter of the pushing block.

[0010] Preferably, two holes are provided at the front end of the fixed handle. The first fixing hole and the second fixing hole at the end of the fixed rod are aligned with the two holes at the front end of the fixed handle. After the first fixing hole is aligned with one of the front-end holes, a first fixing pin penetrates through the hole. After the second fixing hole is aligned with the hole on the other side of the front end, a second fixing pin penetrates through. A screw shaft hole is provided in the middle of the fixed handle for connecting with the moving handle, and a limiting piece screw hole is provided on the side of the screw shaft hole for screwing and connecting the limiting piece.

[0011] Preferably, the moving handle is a front handle, the fixed handle is a rear handle, the moving handle penetrates into the fixed handle from the bottom end, and a screw shaft penetrates through the screw shaft hole.

[0012] Beneficial effects

[0013] In the present utility model, the front ends of the clamping head and the moving clamping head are provided with a tissue-taking groove for clamping and taking out the excised tissue.

[0014] In the present utility model, the clamping head does not move, providing a positioning function for the moving clamping head and improving the precision of the operation.

[0015] In the present utility model, the limiting groove at the rear end of the push rod restricts the distance of the forward and backward movement of the push rod by engaging with the limiting piece, preventing the phenomenon of over-clamping or over-opening of the clamping head.

[0016] In the present utility model, the push rod is easily detachable. By pushing away the limiting piece, the push rod can be removed upward, and the inside of the push rod can be easily cleaned during cleaning. Description of the drawings

[0017] Figure 1 is a schematic diagram of the installation structure of the present utility model;

[0018] Figure 2 is the overall structure diagram of the present utility model;

[0019] Figure 3 is a schematic diagram of the push rod, fixed rod and moving handle of the present utility model;

[0020] Figure 4 is the disassembled structure diagram of the components of the present utility model;

[0021] Figure 5 is the part display diagram of the present utility model.

[0022] Legend description:

[0023] 1. Plier moving head; 101. Plier moving hole; 102. Plier fixing hole; 103. Object picking groove; 2. Push rod; 201. Pushing block; 202. Positioning block; 203. Limit groove; 3. Plier fixing head; 4. Fixed rod; 401. First fixing hole; 402. Second fixing hole; 403. Positioning groove; 5. Moving handle; 501. Push rod groove; 6. Fixed handle; 601. Limit piece screw hole; 7. Screw shaft; 8. Limit piece; 9. First fixing pin; 10. Second fixing pin; 11. Screw shaft hole; 12. Limit pin. Detailed implementation mode

[0024] In order to make the technical means, creative features, achieved purposes and effects realized by the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments and the drawings. However, the following embodiments are only the preferred embodiments of the present utility model and not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative labor all belong to the protection scope of the present utility model.

[0025] The specific embodiments of the present utility model will be described below in conjunction with the drawings. Specific Embodiment 1:

[0027] Refer to Figures 1-5 , a polyp forceps, comprising a plier moving head 1, a push rod 2, a plier fixing head 3, a fixed rod 4, a moving handle 5, a fixed handle 6, a screw shaft 7 and a limit piece 8. The plier moving head 1 is installed at the front end of the push rod 2, and a moving rod is connected to the end of the push rod 2; the plier fixing head 3 is clamped at the front end of the fixed rod 4. A positioning groove 403 is provided at the top of the fixed rod 4. The top of the fixed rod 4 is attached to the push rod 2. The end of the fixed rod 4 is bolted to the fixed handle 6. A first fixing pin 9 penetrates through the front surface of the front end of the fixed handle 6, and a second fixing pin 10 penetrates through one side of the front surface of the front end of the fixed handle 6 near the first fixing pin 9. The front end of the push rod 2 is hinged to the plier moving head 1. A positioning block 202 is provided at the bottom end of the middle part of the push rod 2. The positioning block 202 is fitted with the positioning groove 403 on the fixed rod 4. A pushing block 201 is provided at the end of the push rod 2. The bottom end of the pushing block 201 is inserted into the moving handle 5. The moving handle 5 and the front end of the fixed handle 6 are hinged by a screw shaft 7. A push rod groove 501 is provided at the front end of the moving handle 5. The pushing block 201 is inserted into the push rod groove 501. A limit piece screw hole 601 is provided in the middle of the fixed handle 6. The end of the limit piece 8 is aligned with the limit piece screw hole 601, and a limit pin 12 is inserted into the middle of the limit piece screw hole 601. The front end of the limit piece 8 is slidably connected to the end of the push rod 2.

[0028] The front end of the forceps moving head 1 is provided with an object-taking groove 103. The object-taking groove 103 is a circular groove for clamping the excised tissue. The end of the forceps moving head 1 is provided with a forceps moving hole 101. On one side of the end of the forceps moving head 1 close to the forceps moving hole 101, there is a forceps fixing hole 102. The forceps fixing hole 102 matches the front end of the fixed rod 4 to fix the position of the forceps moving head 1. The forceps moving hole 101 is hinged to the front end of the push rod 2, and the push rod 2 pushes the forceps moving head 1 to axially move around the forceps fixing hole 102.

[0029] The front end of the fixed rod 4 is provided with a forceps fixing head 3. The front end of the forceps fixing head 3 is provided with an object-taking groove 103, which is the same as the object-taking groove 103 on the forceps moving head 1. The forceps fixing head 3 has the functions of positioning and object-taking. At the top of the end of the fixed rod 4, there is a first fixing hole 401, and at the bottom of the end of the fixed rod 4, there is a second fixing hole 402. Both the first fixing hole 401 and the second fixing hole 402 match the holes at the front end of the fixed handle 6.

[0030] At the top of the end of the moving handle 5, there is a limiting groove 203 for the limiting piece 8 to be stuck. At the bottom of the limiting groove 203, there is a pushing block 201. The pushing block 201 is circular. The pushing block 201 is installed at the front end of the moving handle 5, and there is a screw shaft hole 11 in the middle for connecting with the fixed handle 6.

[0031] The front end of the moving handle 5 is provided with a push rod groove 501. The push rod groove 501 is a circular groove, and the outer diameter of the push rod groove 501 is the same as the outer diameter of the pushing block 201.

[0032] The front end of the fixed handle 6 is provided with two holes. The first fixing hole 401 and the second fixing hole 402 at the end of the fixed rod 4 are aligned with the two holes at the front end of the fixed handle 6. After the first fixing hole 401 is aligned with one of the front-end holes, a first fixing pin 9 penetrates through the hole. After the second fixing hole 401 is aligned with the hole on the other side of the front end, a second fixing pin 10 penetrates through. In the middle of the fixed handle 6, there is a screw shaft hole 11 for connecting with the moving handle 5. On the side of the screw shaft hole 11, there is a limiting piece screw hole 601 for connecting the limiting piece 8 with a screw.

[0033] The moving handle 5 is the front handle, and the fixed handle 6 is the rear handle. The moving handle 5 penetrates into the fixed handle 6 from the bottom end, and a screw shaft 7 penetrates through the screw shaft hole 11. Specific Embodiment 2:

[0035] Refer to Figures 1-5, the rotation of the moving handle 5 controls the linear forward and backward movement of the push rod 2. The front end of the push rod 2 is hinged to the movable jaw head 1. When the moving handle 5 rotates backward, it drives the push rod 2 to move forward, so that the movable jaw head 1 closes downward. On the contrary, when the moving handle 5 rotates forward, the push rod 2 moves backward, and the movable jaw head 1 unfolds upward. The front end of the moving handle 5 and the fixed handle 6 are hinged by a screw shaft 11. There is a push rod groove 501 at the front end of the moving handle 5, and the pushing block 201 is inserted into the push rod groove 501. There is a limit piece screw hole 601 in the middle of the fixed handle 6. The end of the limit piece 8 is aligned with the limit piece screw hole 601 and inserted with a limit pin 12 for hinging. The front end of the limit piece 8 slides into the end of the push rod 2. The front ends of the fixed jaw head 3 and the movable jaw head 1 are provided with a tissue extraction groove 103 for clamping the excised tissue. The fixed jaw head 3 does not move, providing a positioning function for the movable jaw head 1. The limit groove 203 at the rear end of the push rod 2 is engaged with the limit piece 8 to limit the forward and backward movement distance of the push rod 2, preventing the phenomenon of over-clamping or over-opening of the jaw head. In this structure, the push rod 2 is easy to disassemble. Push open the limit piece 8, and the push rod 2 can be removed upward. During cleaning, the inside of the push rod 2 can be easily cleaned.

[0036] In summary:

[0037] 1. There are two holes at the front end of the fixed handle 6 in this device. The first fixing hole 401 and the second fixing hole 402 at the end of the fixed rod 4 are aligned with the two holes at the front end of the fixed handle 6. After the first fixing hole 401 is aligned with one of the front-end holes, a first fixing pin 9 passes through the hole. After the second fixing hole 401 is aligned with the hole on the other side of the front end, a second fixing pin 10 passes through. There is a screw shaft hole 11 in the middle of the fixed handle 6 for connecting with the moving handle 5. There is a limit piece screw hole 601 on the side of the screw shaft hole 11 for screw-connecting the limit piece 8.

[0038] 2. The rotation of the moving handle 5 controls the linear forward and backward movement of the push rod 2. The front end of the push rod 2 is hinged to the movable jaw head 1. When the moving handle 5 rotates backward, it drives the push rod 2 to move forward, so that the movable jaw head 1 closes downward. On the contrary, when the moving handle 5 rotates forward, the push rod 2 moves backward, and the movable jaw head 1 unfolds upward. The front end of the moving handle 5 and the fixed handle 6 are hinged by a screw shaft 11. There is a push rod groove 501 at the front end of the moving handle 5, and the pushing block 201 is inserted into the push rod groove 501. There is a limit piece screw hole 601 in the middle of the fixed handle 6. The end of the limit piece 8 is aligned with the limit piece screw hole 601 and inserted with a limit pin 12 for hinging. The front end of the limit piece 8 slides into the end of the push rod 2. The front ends of the fixed jaw head 3 and the movable jaw head 1 are provided with a tissue extraction groove 103 for clamping the excised tissue. The fixed jaw head 3 does not move, providing a positioning function for the movable jaw head 1. The limit groove 203 at the rear end of the push rod 2 is engaged with the limit piece 8 to limit the forward and backward movement distance of the push rod 2, preventing the phenomenon of over-clamping or over-opening of the jaw head. In this structure, the push rod 2 is easy to disassemble. Push open the limit piece 8, and the push rod 2 can be removed upward. During cleaning, the inside of the push rod 2 can be easily cleaned.

[0039] In the present utility model, unless otherwise clearly stipulated and defined, the first feature being “above” or “below” the second feature may include direct contact between the first and second features, or may also include the situation where the first and second features are not in direct contact but are in contact through additional features therebetween. Moreover, the first feature being “above”, “over” and “on top of” the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being “under”, “beneath” and “underneath” the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the horizontal height of the first feature is less than that of the second feature.

[0040] The above has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present utility model and are not used to limit the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will also have various changes and improvements, and all these changes and improvements fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A polyp forceps, comprising a forceps moving head (1), a push rod (2), a forceps fixed head (3), a fixed rod (4), a moving handle (5), a fixed handle (6), a screw shaft (7) and a limiting piece (8), characterized in that: The clamping moving head (1) is installed at the front end of the push rod (2). The clamping fixed head (3) is clamped at the front end of the fixed rod (4). A positioning groove (403) is provided at the top end of the fixed rod (4). The top end of the fixed rod (4) is in contact with the push rod (2). The end of the fixed rod (4) is bolted with a fixed handle (6). A first fixing pin (9) penetrates through the front surface of the front end of the fixed handle (6). A second fixing pin (10) penetrates through one side of the front surface of the front end of the fixed handle (6) close to the first fixing pin (9). The front end of the push rod (2) is hinged to the clamping moving head (1). A positioning block (202) is provided at the bottom end of the middle part of the push rod (2). The positioning block (202) is fitted with the positioning groove (403) on the fixed rod (4). A pushing block (201) is provided at the end of the push rod (2). The bottom end of the pushing block (201) is inserted with a moving handle (5). The moving handle (5) and the front end of the fixed handle (6) are hinged by a screw shaft (7). A push rod groove (501) is provided at the front end of the moving handle (5). The pushing block (201) is inserted into the push rod groove (501). A limiting piece screw hole (601) is provided in the middle of the fixed handle (6). The end of the limiting piece (8) is aligned with the limiting piece screw hole (601), and a limiting nail (12) is inserted into the middle of the limiting piece screw hole (601). The front end of the limiting piece (8) is slidably connected to the end of the push rod (2).

2. The polyp forceps according to claim 1, characterized in that: A fetching groove (103) is provided at the front end of the clamping moving head (1). The fetching groove (103) is a circular groove. A clamping moving hole (101) is provided at the end of the clamping moving head (1). A clamping fixed hole (102) is provided at one side of the end of the clamping moving head (1) close to the clamping moving hole (101). The clamping fixed hole (102) matches the front end of the fixed rod (4). The clamping moving hole (101) is hinged to the front end of the push rod (2). The push rod (2) pushes the clamping moving head (1) to move axially around the clamping fixed hole (102).

3. The polyp forceps according to claim 2, characterized in that: A clamping fixed head (3) is provided at the front end of the fixed rod (4). A fetching groove (103) is provided at the front end of the clamping fixed head (3), which is the same as the fetching groove (103) on the clamping moving head (1). A first fixing hole (401) is provided at the top of the end of the fixed rod (4). A second fixing hole (402) is provided at the bottom of the end of the fixed rod (4). Both the first fixing hole (401) and the second fixing hole (402) match the holes at the front end of the fixed handle (6).

4. A polyp forceps according to claim 1, characterized in that: A limiting groove (203) is provided at the top of the end of the moving handle (5). The pushing block (201) is provided at the bottom of the limiting groove (203). The pushing block (201) is circular. The pushing block (201) is installed at the front end of the moving handle (5), and a screw shaft hole (11) is provided in the middle.

5. A polyp forceps according to claim 4, characterized in that: A push rod groove (501) is provided at the front end of the moving handle (5). The push rod groove (501) is a circular groove. The outer diameter of the push rod groove (501) is the same as the outer diameter of the pushing block (201).

6. The polyp forceps according to claim 3, characterized in that: The front end of the fixed handle (6) is provided with two holes. The first fixing hole (401) and the second fixing hole (402) at the end of the fixed rod (4) are aligned with the two holes at the front end of the fixed handle (6). After the first fixing hole (401) is aligned with one of the front-end holes, a first fixing pin (9) penetrates through the hole. After the second fixing hole (402) is aligned with the hole on the other side of the front end, a second fixing pin (10) penetrates through. A screw shaft hole (11) is provided in the middle of the fixed handle (6), and a limiting piece screw hole (601) is provided on the side of the screw shaft hole (11).

7. A polyp forceps according to claim 6, characterized in that: The moving handle (5) is the front handle, the fixed handle (6) is the rear handle, the moving handle (5) penetrates into the fixed handle (6) from the bottom end, and a screw shaft (7) penetrates through the screw shaft hole (11).

Images