Novel biopsy hemostatic forceps

Abstract

The pair of novel biopsy hemostatic forceps comprises a forceps head assembly, a rotating seat and a sliding ring assembly, the forceps head assembly comprises a first forceps head, a second forceps head and a forceps head frame, the first forceps head is hinged to the forceps head frame, the second forceps head is hinged to the first forceps head, the rotating seat comprises a fixed seat and a clamping ring, and the sliding ring assembly comprises a push-pull part and an electrode part. One end of the electrode is connected with an external power supply. The bipolar biopsy haemostatic forceps are formed through the first forceps head, the second forceps head and the slip ring assembly, a negative plate is prevented from being pasted on a patient during diagnosis and treatment, and compared with single-stage biopsy haemostatic forceps, the bipolar biopsy haemostatic forceps are safer, so that the surgical risk is reduced, and when the rotation angle of the forceps head assembly needs to be adjusted, the rotation angle of the forceps head assembly is adjusted by rotating the rotating seat; the rotating seat rotates to drive the forceps head assembly to rotate, so that the rotating angle and the opening and closing direction of the jaws of the first forceps head and the second forceps head are accurately controlled, the operation difficulty of a doctor is reduced, and the operation risk is further reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to a novel biopsy hemostatic forceps. Background Art

[0002] Endoscopic biopsy technology is a minimally invasive diagnosis and treatment technology completed through the endoscope working channel, which belongs to advanced endoscopic technology. The thermal biopsy hemostat in endoscopic biopsy technology needs to be connected to the electrode device so that the hemostat head is electrified to cut or coagulate cell tissues. It has the advantages of fast cutting process, less bleeding and fast coagulation.

[0003] The biopsy hemostatic forceps in the prior art have the following disadvantages:

[0004] 1. Most of the biopsy hemostatic forceps used in clinical practice are single-stage biopsy hemostatic forceps, which require patients to stick negative plates for surgery, increasing the risk of surgery;

[0005] 2. Doctors cannot accurately control the rotation angle of live hemostatic forceps when using them, which makes the operation difficult and risky.

[0006] In view of this, the present utility model is proposed. Utility Model Content

[0007] The utility model provides a novel biopsy hemostatic forceps.

[0008] This application provides the following technical solutions:

[0009] A novel biopsy hemostatic forceps comprises:

[0010] A clamp head assembly, the clamp head assembly comprises a first clamp head, a second clamp head and a clamp head frame, the first clamp head is hinged to the clamp head frame, and the second clamp head is hinged to the first clamp head;

[0011] The rotating seat comprises a fixed seat and a clamping ring, the fixed seat comprises a connecting portion and a clamping portion, and the clamping ring is fixedly arranged on the connecting portion;

[0012] The slip ring assembly comprises a push-pull part and an electrode part, wherein the electrode part is arranged inside the push-pull part, one end of the electrode part is connected to an external power supply, and the other end of the electrode part is connected to a first clamp head and a second clamp head so that the clamp head assembly is energized.

[0013] Optionally, it further comprises a handle, wherein the handle has an abutting portion and an extending portion;

[0014] The abutting portion is connected to the extending portion, and the push-pull portion can be slidably sleeved on the extending portion;

[0015] The fixing seat is rotatably arranged at one end of the extending portion away from the abutting portion through the clamping portion.

[0016] Optionally, one end of the second clamp head is connected to a push-pull wire;

[0017] A spring tube is sleeved on the push-pull steel wire;

[0018] The spring tube is arranged in the clamp ring, and the end of the push-pull wire away from the clamp head assembly at least partially penetrates the clamp ring.

[0019] Optionally, a PTFE tube is provided on the push-pull wire.

[0020] Optionally, the rotating seat further includes a plastic coating layer, which is arranged on the connecting portion and is sleeved on the spring tube.

[0021] Optionally, the electrode portion includes a plug, the plug extends into the extension portion, and the plug can slide synchronously with the push-pull portion;

[0022] The plug is provided with a large spring sheet, the large spring sheet is connected with a first wire, and the first wire is connected to an end of the spring tube away from the clamp head assembly;

[0023] The plug is connected with a second wire, and the second wire is connected with one end of the push-pull wire away from the clamp head assembly.

[0024] Optionally, a stainless steel tube is connected to one end of the plug close to the PTFE tube, and the stainless steel tube is sleeved on a portion of the PTFE tube.

[0025] Optionally, the jaw ends of the first clamp head and the second clamp head are both provided with an insulating coating.

[0026] Optionally, the spring tube is at least partially covered with a pipeline assembly, and one end of the pipeline assembly facing away from the clamp head assembly is fixedly connected to a fixing seat.

[0027] By adopting the above technical solution, the utility model has the following beneficial effects:

[0028] A bipolar biopsy hemostat is formed by setting the first clamp head, the second clamp head and the slip ring assembly, which avoids sticking negative plates on the patient during diagnosis and treatment. It is safer than a single-stage biopsy hemostat, thereby reducing surgical risks. When the rotation angle of the clamp head assembly needs to be adjusted, the rotating seat is rotated to drive the clamp head assembly to rotate, thereby accurately controlling the rotation angle and opening and closing direction of the jaws of the first clamp head and the second clamp head, reducing the doctor's operating difficulty and further reducing surgical risks.

[0029] The specific implementation modes of the present utility model are further described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The accompanying drawings are part of this application and are used to provide a further understanding of the utility model. The schematic embodiments of the utility model and their descriptions are used to explain the utility model, but do not constitute an improper limitation on the utility model. Obviously, the drawings described below are only some embodiments. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0031] Figure 1 This is a schematic diagram of the structure of a novel biopsy hemostatic forceps provided in this embodiment of the present application;

[0032] Figure 2 This is a schematic diagram of the structure of the novel biopsy hemostatic forceps provided in this embodiment of the present application without the pipeline assembly and the handle;

[0033] Figure 3 A schematic diagram of the morphological structure of a clamp head assembly of a novel biopsy hemostatic forceps provided in this embodiment of the present application;

[0034] Figure 4 A sectional view of a morphology of a clamp head assembly of a novel biopsy hemostatic forceps provided in this embodiment of the present application;

[0035] Figure 5 This is a schematic diagram of another structural form of the clamp head assembly of the novel biopsy hemostatic forceps provided in this embodiment of the present application;

[0036] Figure 6 Another cross-sectional view of the clamp head assembly of the novel biopsy hemostatic forceps provided in this embodiment of the present application;

[0037] Figure 7 This is a schematic structural diagram of the novel biopsy hemostatic forceps provided in this embodiment of the present application after the clamp head assembly and the pipeline assembly are removed;

[0038] Figure 8 This is a schematic structural diagram of the first clamp head of the novel biopsy hemostatic forceps provided in this embodiment of the present application.

[0039] Figure numerals: 1, clamp head assembly; 2, pipeline assembly; 3, fixed seat; 4, slip ring assembly; 5, handle; 31, plastic coating layer; 32, fixed seat; 33, clamp; 41, plug; 42, large spring; 43, stainless steel tube; 44, slip ring; 45, second wire; 46, first wire; 111, first clamp head; 112, second clamp head; 113, third wire; 114, clamp head frame; 115, spring tube; 116, push-pull wire; 117, PTFE tube.

[0040] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0041] See also Figures 1 to 8 As shown, the embodiment of the present application provides a novel biopsy hemostatic forceps, including: a forceps head assembly 1, a rotating seat 3 and a slip ring assembly 4, the forceps head assembly 1 includes a first forceps head 111, a second forceps head 112 and a forceps head frame 114, the forceps head frame 114 is made of ceramic or plastic material, and plays an insulating role between the two poles (between the first forceps head 111 and the second forceps head 112), the first forceps head 111 is hinged to the forceps head frame 114, the second forceps head 112 is hinged to the first forceps head 111, the first forceps head 111, the second forceps head 112 and the forceps head frame 114 are all hinged by a pin, and the pin is made of plastic or ceramic material, which plays an insulating role Insulation function, there is air insulation between the first clamp head 111 and the second clamp head 112, the rotating seat 3 includes a fixed seat 32 and a clamp ring 33, the fixed seat 32 has a connecting portion and a clamping portion, the clamp ring 33 is fixedly arranged at the connecting portion, the slip ring assembly 4 includes a push-pull portion and an electrode portion, the slip ring assembly 4 also includes a slip ring 44, the slip ring 44 is convenient for controlling the sliding of the push-pull portion, the electrode portion is arranged in the push-pull portion, one end of the electrode portion is connected to an external power supply, and the other end of the electrode portion is connected to the first clamp head 111 and the second clamp head 112, so that the clamp head assembly 1 is energized, and the body fluid on the tissue surface is used as an excitation medium to achieve the functions of cutting and coagulation.

[0042] It should be noted that the electrode part energizes the first clamp head 111 and the second clamp head 112 through an external power supply, and uses tissue fluid as a conductive and exciting medium to heat the first clamp head 111 and the second clamp head 112 to a certain temperature. When the heat energy acts on the tissue, it will cause the tissue cells to coagulate, carbonize and evaporate. The first clamp head 111 and the second clamp head 112 are then driven to open and close through the slip ring assembly 4, so that the damaged tissue can be removed. Sampling can also be performed for subsequent pathological examination, providing an important reference for diagnosis and treatment.

[0043] Compared with the existing single-stage biopsy hemostatic forceps, the bipolar biopsy hemostatic forceps provided in the present application are smaller in size and can be easily adapted to smaller endoscopes used in respiratory departments or other departments. They can be used not only for the diagnosis and treatment of the digestive tract or other large intestines, but also for the diagnosis and treatment of the respiratory tract, thus increasing the application scenarios of the biopsy hemostatic forceps.

[0044] In the above scheme, a bipolar biopsy hemostat is formed by setting the first clamp head 111, the second clamp head 112 and the slip ring assembly 4, so as to avoid sticking negative plates on the patient during diagnosis and treatment. It is safer than a single-stage biopsy hemostat, thereby reducing the risk of surgery. When the rotation angle of the clamp head assembly 1 needs to be adjusted, the rotating seat 3 is rotated to drive the clamp head assembly 1 to rotate, thereby accurately controlling the rotation angle and opening and closing direction of the jaws of the first clamp head 111 and the second clamp head 112, reducing the doctor's operating difficulty and further reducing the risk of surgery.

[0045] In some possible implementations, see Figure 1 and Figure 7 As shown, the new biopsy hemostatic forceps provided in the embodiment of the present application also includes a handle 5, which has an abutment portion and an extension portion, the abutment portion is connected to the extension portion, the push-pull portion can be slidably mounted on the extension portion, and the fixed seat 32 can be rotatably arranged at one end of the extension portion away from the abutment portion through a clamping portion, and the clamping portion can be a buckle.

[0046] In some possible implementations, see Figures 1 to 4 As shown, one end of the second clamp head 112 is connected to a push-pull wire 116, and a spring tube 115 is sleeved on the push-pull wire 116. The spring tube 115 includes an external plastic tube and a spring arranged in the external plastic tube. The spring tube 115 has the functions of conducting electricity and supporting and connecting the push-pull wire 116. When bending the endoscope, the spring tube 115 is less likely to break than a plastic tube and is smoother when bending. The surface of the push-pull wire 116 is coated with an insulating coating or a heat shrink tube to insulate it from the spring tube 115. The spring tube 115 is arranged in the retaining ring 33, and the end of the push-pull wire 116 away from the clamp head assembly 1 at least partially penetrates the retaining ring 33.

[0047] In the above scheme, when it is necessary to cut the tissue to make it fall off, the push-pull wire 116 is pulled, and the push-pull wire 116 drives the second clamp head 112 to rotate a certain angle around the hinge point. The rotation of the second clamp head 112 drives the first clamp head 111 to rotate synchronously, so that the open ends of the first clamp head 111 and the second clamp head 112 are close to each other and closed, thereby cutting the tissue.

[0048] In some possible implementations, see Figure 2 and Figure 7 As shown, a PTFE tube 117 is sleeved on the push-pull wire 116 .

[0049] In some possible implementations, see Figure 3 and Figure 7 As shown, the rotating seat 3 further includes a plastic coating layer 31 , which is disposed at the connecting portion and sleeved on the spring tube 115 , and the plastic coating layer 31 plays an insulating role.

[0050] In some possible implementations, see Figure 2 and Figure 7 As shown, the electrode part includes a plug 41, which extends into the extension part and can slide synchronously with the push-pull part. A large spring leaf 42 is provided on the plug 41, and a first wire 46 is connected to the large spring leaf 42. The first wire 46 is connected to the end of the spring tube 115 away from the clamp head assembly 1. A second wire 45 is connected to the plug 41, and the second wire 45 is connected to the end of the push-pull wire 116 away from the clamp head assembly 1.

[0051] In the above scheme, one end of the first wire 46 is connected to an electrode of the plug 41 through the large spring 42, and the other end is connected to the first clamp 111 through the spring tube 115 and the clamp head frame 114; one end of the second wire 45 is connected to the other electrode of the plug 41, and the other end is connected to the second clamp 112 through the push-pull wire 116, so that the first clamp 111 and the second clamp 112 are energized.

[0052] In some other possible embodiments, see Figure 5 and Figure 6 As shown, the first clamp head 111 and the second clamp head 112 are both hinged to the clamp head frame 114, and the first clamp head 111 and the second clamp head 112 are respectively connected to the push-pull wire 116 and the third wire 113 at one end close to the rotating seat 3, and a spring tube 115 is sleeved on the push-pull wire 116. The spring tube 115 includes an external plastic tube and a spring arranged in the external plastic tube. The spring tube 115 here supports and connects the push-pull wire 116. When bending the endoscope, the spring tube 115 is less likely to break than the plastic tube and is smoother when bending. The push-pull wire 116 and the third wire 113 are respectively connected to the first wire 46 and the second wire 45, so that the first clamp head 111 and the second clamp head 112 are energized.

[0053] In some possible implementations, see Figure 2 and Figure 7 As shown, a stainless steel tube 43 is connected to one end of the plug 41 close to the PTFE tube 117 , and the stainless steel tube 43 is sleeved on a portion of the PTFE tube 117 .

[0054] It should be noted that the PTFE tube 117 is used to place the first wire 46, the second wire 45 and the push-pull wire 116 in the same channel. When the stainless steel tube 43 is sleeved on part of the PTFE tube 117, the stainless steel tube 43 will compress the first wire 46 and the second wire 45. At this time, the PTFE tube 117 will play a certain buffering role to prevent the stainless steel tube 43 from crushing the first wire 46 and the second wire 45.

[0055] In some possible implementations, see Figure 8As shown, the jaw ends of the first clamp head 111 and the second clamp head 112 are both provided with an insulating coating.

[0056] In the above scheme, when taking a biopsy, the tissue can be easily removed through the jaws of the first forceps 111 and the second forceps 112 and the thermal effect of the high-frequency electricity. When used for coagulation, the jaws of the first forceps 111 and the second forceps 112 need to be closed. At this time, the insulating coating at the jaw ends of the first forceps 111 and the second forceps 112 can play a good insulating role. The jaws of the first forceps 111 and the second forceps 112 will not be short-circuited when closed, and the area outside the coating can play a coagulation role.

[0057] In some possible implementations, see Figure 1 and Figure 3 As shown, the spring tube 115 is at least partially covered with a pipeline assembly 2, and the end of the pipeline assembly 2 facing away from the clamp head assembly 1 is fixedly connected to the fixing seat 32. The pipeline assembly 2 plays a certain stabilizing role on the clamp head assembly 1 to prevent the clamp head assembly 1 from shaking during use.

[0058] By providing the first clamp head 111, the second clamp head 112 and the slip ring assembly 4, a bipolar biopsy hemostat is formed, which avoids sticking a negative electrode plate on the patient during diagnosis and treatment. Compared with a single-stage biopsy hemostat, it is safer, thereby reducing surgical risks. When the rotation angle of the clamp head assembly 1 needs to be adjusted, the rotating seat 3 is rotated to drive the clamp head assembly 1 to rotate, thereby accurately controlling the rotation angle and opening and closing direction of the jaws of the first clamp head 111 and the second clamp head 112, reducing the doctor's operating difficulty and further reducing surgical risks.

[0059] This specific embodiment is merely an explanation of the utility model, and it is not a limitation of the utility model. After reading this specification, those skilled in the art can make non-creative modifications to the embodiment as needed, but as long as it is within the protection scope of the utility model, it is protected by the patent law.

Claims

1. A novel biopsy hemostatic forceps, characterized in that: include: A pliers head assembly (1), the pliers head assembly (1) comprising a first pliers head (111), a second pliers head (112) and a pliers head frame (114), the first pliers head (111) being hinged to the pliers head frame (114), and the second pliers head (112) being hinged to the first pliers head (111); A rotating seat (3), the rotating seat (3) comprising a fixed seat (32) and a snap ring (33), the fixed seat (32) having a connecting portion and a snap-connecting portion, the snap ring (33) being fixedly arranged on the connecting portion; A slip ring assembly (4), the slip ring assembly (4) comprising a push-pull portion and an electrode portion, the electrode portion being arranged inside the push-pull portion, one end of the electrode portion being connected to an external power source, and the other end of the electrode portion being connected to the first clamp head (111) and the second clamp head (112), so that the clamp head assembly (1) is energized.

2. The novel biopsy hemostatic forceps according to claim 1 is characterized in that: Also included is a handle (5), wherein the handle (5) has an abutment portion and an extension portion; The abutting portion is connected to the extending portion, and the push-pull portion can be slidably sleeved on the extending portion; The fixing seat (32) is rotatably arranged at one end of the extending portion away from the abutting portion via a clamping portion.

3. The novel biopsy hemostatic forceps according to claim 2 is characterized in that: One end of the second clamp head (112) is connected to a push-pull steel wire (116); The push-pull steel wire (116) is sleeved with a spring tube (115); The spring tube (115) is disposed in the retaining ring (33), and the end of the push-pull steel wire (116) that faces away from the pliers head assembly (1) at least partially penetrates the retaining ring (33).

4. The novel biopsy hemostatic forceps according to claim 3 is characterized in that: The push-pull steel wire (116) is sleeved with a PTFE tube (117).

5. The novel biopsy hemostatic forceps according to claim 4 is characterized in that: The rotating seat (3) further comprises a plastic coating layer (31), wherein the plastic coating layer (31) is arranged on the connecting portion, and the plastic coating layer (31) is sleeved on the spring tube (115).

6. The novel biopsy hemostatic forceps according to claim 5, characterized in that: The electrode portion comprises a plug (41), the plug (41) extends into the extension portion, and the plug (41) can slide synchronously with the push-pull portion; The plug (41) is provided with a large spring sheet (42), the large spring sheet (42) is connected to a first wire (46), and the first wire (46) is connected to an end of the spring tube (115) away from the clamp head assembly (1); The plug (41) is connected to a second wire (45), and the second wire (45) is connected to an end of the push-pull wire (116) that faces away from the clamp head assembly (1).

7. The novel biopsy hemostatic forceps according to claim 6, characterized in that: One end of the plug (41) close to the PTFE tube (117) is connected to a stainless steel tube (43), and the stainless steel tube (43) is sleeved on a portion of the PTFE tube (117).

8. The novel biopsy hemostatic forceps according to claim 1, characterized in that: The jaw ends of the first clamp head (111) and the second clamp head (112) are both provided with an insulating coating.

9. The novel biopsy hemostatic forceps according to claim 6, characterized in that: The spring tube (115) is at least partially sleeved with a pipeline assembly (2), and one end of the pipeline assembly (2) facing away from the clamp head assembly (1) is fixedly connected to the fixing seat (32).

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