A lesion exposure device for minimally invasive treatment under a multipurpose digestive endoscope

Abstract

The utility model relates to medical instrument technical field, concretely is a multipurpose digestive endoscope under lesion exposure device for minimally invasive treatment, including core pole, the outer surface movable joint of core pole has the sliding ring, the left and right sides fixed connection of sliding ring have two groups of ring, the upper end movable joint of core pole has ring no.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically a multi-purpose lesion exposure device for minimally invasive treatment under digestive endoscopy. Background Technology

[0002] Currently, some polyps or superficial tumors in the digestive tract are often treated with endoscopic mucosal resection. The conventional resection instruments are electric snares or cold snares. Some early cancers, precancerous lesions and tumors in the mucosal layer or superficial submucosa of the digestive tract are often treated with endoscopic dissection.

[0003] A search revealed patent application number (201510919563.5), which discloses "a medical snare," comprising a snare, a pull cable, a sheath, a slip ring, an electrode, and a core rod. A sheath is fitted onto the connection between the pull cable and the snare. One end of the pull cable is fixedly connected to the tail end of the snare through the sheath, and the other end is fixedly connected to the head end of the sheath. The slip ring is fitted onto the core rod and can move axially relative to the core rod. The sheath is inserted into the core rod, and the tail end of the sheath is fixedly connected to the electrode on the core rod, and the tail end of the sheath is electrically connected to the electrode. The sheath is tightly locked onto the core rod by a rotating cap. The head end of the snare has a guide head, which is integrally formed with the snare. An anti-slip structure is provided on the outside of the snare, which is a spiral structure formed by tightly wound insulating wire around the snare.

[0004] However, the aforementioned device has the following problems: While this medical snare is convenient and safe to use, it prevents tissue slippage when encircling the lesion. The conventional method for this medical snare to enter the human digestive tract is to insert it through the biopsy channel of the endoscope, entering the digestive tract along with the endoscope through the patient's mouth or anus. However, within the limited operating space, this medical snare cannot quickly expose the lesion location, requiring multiple snare operations, resulting in prolonged operation time and affecting surgical outcomes. Therefore, we propose a multi-purpose lesion exposure device for minimally invasive endoscopic treatment of digestive tract diseases to solve these problems. Utility Model Content

[0005] The purpose of this invention is to provide a multi-purpose lesion exposure device for minimally invasive treatment under digestive endoscopy, in order to solve the problem mentioned in the background art that the lesion location cannot be quickly exposed in a limited operating space, requiring multiple looping operations, resulting in long operation time and affecting the surgical effect.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a multipurpose lesion exposure device for minimally invasive treatment under digestive endoscopy, comprising a core rod, a slip ring movably connected to the outer surface of the core rod, two sets of finger rings fixedly connected to the left and right sides of the slip ring, a second finger ring movably connected to the upper end of the core rod, a sheath connected to the lower end of the core rod, a collar provided inside the sheath, and a support component provided outside the collar;

[0007] The support assembly includes a conduit, a cable, fixing blocks, and spring clips. The conduit is disposed inside the sheath, and the cable is disposed inside the conduit. A collar is disposed at the lower end of the cable. Two sets of fixing blocks are disposed on the bottom inner wall of the conduit, and spring clips are disposed at the lower ends of the two sets of fixing blocks.

[0008] Preferably, the bottom of the tube sheath is provided with a pushing component, the pushing component includes a limiting block and a positioning guide wire, the limiting block is fixedly connected to the inner wall of the bottom of the tube sheath, the positioning guide wire is snapped into the inside of the limiting block, and the positioning guide wire is in contact with the inner wall of the tube sheath.

[0009] Preferably, the upper end of the conduit is connected to the slip ring, the upper end of the cable is inside the conduit, the other end of the cable is fixedly connected to the collar, the outer surface of the fixing block is fixedly connected to the inner wall of the conduit, and the upper ends of the two sets of spring pieces are respectively fixedly connected to the two sets of fixing blocks.

[0010] Preferably, a pressure spring is movably sleeved on the surface of the core rod, one end of the pressure spring is connected to the core rod, and the other end of the pressure spring is connected to the upper end of the slip ring.

[0011] Preferably, the spring sheet has a slot on the side facing the collar, and the slot is conical.

[0012] Preferably, the inner wall of the positioning guide wire is provided with a tapered groove, and the spring is tilted outward at a 45-degree angle.

[0013] Preferably, the fixing block and the spring are made of stainless steel.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This utility model, through the setting of the support component, releases the slip ring, allowing the spring to unfold outward. The end of the spring contacts the skin for support, thereby expanding the operable range and enabling more full exposure of the lesion, facilitating minimally invasive endoscopic treatment. Furthermore, the symmetrical distribution of two sets of springs avoids hindering the ring looping operation.

[0016] 2. By setting up the pushing component, this utility model utilizes the toughness and hardness of the positioning guidewire to effectively push lesions in the human digestive tract lumen, so that the device not only has the original function of pulling lesions, but also the function of pushing lesions. It can be used for minimally invasive endoscopic treatment of the entire digestive tract, including minimally invasive treatment under gastroscopy, colonoscopy and enteroscopy. Attached image description:

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a front view schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the present invention after shrinkage;

[0020] Figure 3 This is a structural schematic diagram of the support component of this utility model;

[0021] Figure 4 This utility model Figure 3 A magnified view of part A in the diagram.

[0022] In the diagram: 1. Core rod; 2. Slip ring; 3. Finger ring one; 4. Finger ring two; 5. Tube sheath; 6. Collar; 7. Support assembly; 71. Guide tube; 72. Cable; 73. Fixing block; 74. Spring piece; 75. Slot; 8. Pushing assembly; 81. Limiting block; 82. Positioning guide wire; 9. Pressure spring. Detailed implementation method:

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-4This utility model provides an embodiment of a multi-purpose lesion exposure device for minimally invasive treatment under digestive endoscopy, comprising a core rod 1, a slip ring 2 movably connected to the outer surface of the core rod 1, two sets of finger rings 3 fixedly connected to the left and right sides of the slip ring 2, a finger ring 4 movably connected to the upper end of the core rod 1, a sheath 5 connected to the lower end of the core rod 1, a collar 6 disposed inside the sheath 5, and a support assembly 7 disposed outside the collar 6; the support assembly 7 comprises a catheter 71, a cable 72, a fixing block 73, and a spring 74; the catheter 71 is disposed inside the sheath 5, the cable 72 is disposed inside the catheter 71, the collar 6 is disposed at the lower end of the cable 72, two sets of fixing blocks 73 are disposed on the bottom inner wall of the catheter 71, and spring 74 is disposed at the lower end of the two sets of fixing blocks 73;

[0025] This device, through the setting of support component 7, solves the problem that in a limited operating space, it is impossible to quickly expose the lesion location, requiring multiple looping operations, which leads to long operation time and affects the surgical outcome.

[0026] Furthermore, a pushing component 8 is provided at the bottom of the sheath 5. The pushing component 8 includes a limiting block 81 and a positioning guide wire 82. The limiting block 81 is fixedly connected to the inner wall of the bottom of the sheath 5, and the positioning guide wire 82 is engaged inside the limiting block 81, with the positioning guide wire 82 fitting against the inner wall of the sheath 5. Figure 4 As shown, this structure is used to lock the positioning guide wire 82 inside the limiting block 81. By cooperating with the sheath 5, the positioning guide wire 82 can push the lesion in the human digestive tract, so that the device not only has the original function of pulling the lesion, but also the function of pushing the lesion.

[0027] Furthermore, the upper end of the conduit 71 is connected to the slip ring 2, the upper end of the cable 72 is inside the conduit 71, the other end of the cable 72 is fixedly connected to the collar 6, the outer surface of the fixing block 73 is fixedly connected to the inner wall of the conduit 71, and the upper ends of the two sets of spring pieces 74 are respectively fixedly connected to the two sets of fixing blocks 73. Figure 3 As shown, this structure is used to move to the bottom via the slip ring 2. Under the elastic action of the spring 74, the spring 74 is kept in an inclined state, and the end of the spring 74 contacts the patient's skin, which expands the operable range and facilitates the looping operation of the ring 6.

[0028] Furthermore, a pressure spring 9 is movably sleeved on the surface of the core rod 1. One end of the pressure spring 9 is connected to the core rod 1, and the other end of the pressure spring 9 is connected to the upper end of the slip ring 2. Figure 2 As shown, this structure is used so that when the fingers are placed at the finger ring 3 and the finger ring 4 respectively, the finger ring 3 pulls the slip ring 2 to compress the pressure spring 9, causing the pressure spring 9 to deform, thereby pulling the guide tube 71 to move. When the finger ring 3 is released, the slip ring 2 is pushed back to its original position under the elastic action of the pressure spring 9.

[0029] Furthermore, the spring 74 has a conical groove 75 on the side facing the collar 6. Figure 3 As shown, this structure is used to facilitate the pulling of the guide tube 71 through the slot 75, thereby causing the cable 72 to retract the collar 6. At the same time, the spring piece 74 retracts inward, so that the collar 6 is locked in the slot 75, making reasonable use of space.

[0030] Furthermore, the inner wall of the positioning guide wire 82 is provided with a tapered groove, and the spring piece 74 is inclined outward at a 45-degree angle. For example... Figure 4 As shown, this structure is used to make the spring piece 74 fit against the inner wall of the limiting block 81 through the conical groove of the inner wall of the limiting block 81, thereby improving the stability of the device.

[0031] Furthermore, the fixing block 73 and the spring 74 are made of stainless steel. For example... Figure 3 As shown, this structure is designed to improve the corrosion resistance of the device by using stainless steel.

[0032] Working principle: When using, such as Figure 1 and Figure 2 As shown, medical staff place their fingers inside the corresponding rings 3 and 4, respectively, and then pull the sliding ring 2 through ring 3 to compress the pressure spring 9, causing the pressure spring 9 to deform. Figure 3 and Figure 4 As shown, this pulls the catheter 71 to move it. After pulling the catheter 71, the pull cable 72 retracts the collar 6, and at the same time, the spring 74 retracts inward, causing the collar 6 to be locked in the groove 75. Then, the sheath 5 is inserted into the human digestive tract cavity through the patient's nasal cavity or anus. It is locked in the limiting block 81 by the positioning guide wire 82. Using the cooperation of the positioning guide wire 82 and the sheath 5, the lesion in the human digestive tract cavity is pushed, so that the device not only has the original function of traction on the lesion, but also the function of pushing the lesion. After entering the human digestive tract cavity, as... Figure 2 and Figure 3 As shown, when the finger ring 3 is released, the elastic action of the pressure spring 9 pushes the slip ring 2 back to its original position. Under the elastic action of the spring 74, the spring 74 is kept in an inclined state, and the end of the spring 74 contacts the patient's skin, which expands the operable range and allows the lesions in the digestive tract lumen to be more fully exposed, thereby facilitating minimally invasive endoscopic treatment. It is also convenient to use the looping ring 6 to loop the lesion in the digestive tract lumen. Then, by operating the slip ring 2, the looping ring 6 is driven to pull the lesion. The above is the entire working principle of this utility model.

[0033] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A multipurpose lesion exposure device for minimally invasive treatment under digestive endoscopy, comprising a core rod (1), wherein a slip ring (2) is movably connected to the outer surface of the core rod (1), two sets of finger rings (3) are fixedly connected to the left and right sides of the slip ring (2), a second set of finger rings (4) is movably connected to the upper end of the core rod (1), and a sheath (5) is connected to the lower end of the core rod (1), characterized in that: The sheath (5) is provided with a collar (6) inside, and a support assembly (7) is provided on the outside of the collar (6); The support assembly (7) includes a conduit (71), a cable (72), a fixing block (73), and a spring piece (74). The conduit (71) is provided inside the sheath (5), and the cable (72) is provided inside the conduit (71). A collar (6) is provided at the lower end of the cable (72). Two sets of fixing blocks (73) are provided on the bottom inner wall of the conduit (71), and spring pieces (74) are provided at the lower ends of the two sets of fixing blocks (73).

2. The multipurpose lesion exposure device for minimally invasive treatment under digestive endoscopy according to claim 1, characterized in that: The bottom of the sheath (5) is provided with a pushing component (8), which includes a limiting block (81) and a positioning guide wire (82). The limiting block (81) is fixedly connected to the inner wall of the bottom of the sheath (5), and the positioning guide wire (82) is snapped into the inside of the limiting block (81). The positioning guide wire (82) is in contact with the inner wall of the sheath (5).

3. The multipurpose lesion exposure device for minimally invasive treatment under digestive endoscopy according to claim 1, characterized in that: The upper end of the conduit (71) is connected to the slip ring (2), the upper end of the cable (72) is inside the conduit (71), the other end of the cable (72) is fixedly connected to the collar (6), the outer surface of the fixing block (73) is fixedly connected to the inner wall of the conduit (71), and the upper ends of the two sets of spring pieces (74) are respectively fixedly connected to the two sets of fixing blocks (73).

4. The lesion exposure device for minimally invasive treatment under digestive endoscopy according to claim 1, characterized in that: A pressure spring (9) is movably sleeved on the surface of the core rod (1). One end of the pressure spring (9) is connected to the core rod (1), and the other end of the pressure spring (9) is connected to the upper end of the slip ring (2).

5. The multipurpose lesion exposure device for minimally invasive treatment under digestive endoscopy according to claim 1, characterized in that: The spring piece (74) has a slot (75) on the side facing the collar (6), and the slot (75) is conical.

6. The multipurpose lesion exposure device for minimally invasive treatment under digestive endoscopy according to claim 2, characterized in that: The inner wall of the positioning guide wire (82) is provided with a tapered groove, and the spring piece (74) is tilted outward at a 45-degree angle.

7. The multipurpose lesion exposure device for minimally invasive treatment under digestive endoscopy according to claim 1, characterized in that: The fixing block (73) and the spring (74) are made of stainless steel.

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