Foreign matter clamping device for digestive endoscopy
By designing a multi-clamp retraction section and a wiring channel for the digestive endoscope foreign body retrieval device, the problems of unstable foreign body retrieval and secondary damage have been solved, achieving stable foreign body retrieval and improved safety.
Patent Information
- Application Number
- CN202423016679.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-06
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2034-12-06
AI Technical Summary
Existing endoscopic foreign body retrieval devices are prone to dislodging foreign bodies during the retrieval process and may cause secondary damage to the digestive tract.
A foreign body retrieval device for digestive endoscopy is designed, which uses a winding section formed by multiple clamps. The winding section is driven inward by a traction line to wrap the foreign body, thereby increasing the contact area. The traction line is placed in the cable channel to avoid direct contact with the digestive tract.
It improves the stability and safety of foreign body retrieval, prevents foreign bodies from falling out during the retrieval process, and reduces secondary damage to the digestive tract.
Smart Images
Figure CN223944468U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to medical equipment technical field more specifically, relate to a digestive endoscope foreign body clamping device. BACKGROUND
[0002] In the treatment of digestive system diseases, foreign body intake is a common and urgent clinical situation. If the foreign body cannot be taken out in time, it may cause serious complications such as perforation and bleeding of the digestive tract, which seriously threatens the life safety of the patient. Therefore, the device is needed to take out the foreign body to prevent further harm to the patient.
[0003] The existing device is usually in the shape of forceps or net, which is used for clamping or taking out the foreign body. The device in the shape of forceps is more suitable for hard foreign bodies, but since it is usually point contact when clamping, the contact area with the foreign body is small, and the foreign body may fall off during the clamping process. Moreover, when clamping some large and sharp foreign bodies, the inner wall of the digestive tract may be scratched, causing secondary damage to the patient's digestive tract. SUMMARY
[0004] The utility model discloses to overcome the above-mentioned prior art foreign body clamping easy to fall off problem, provide a kind of digestive endoscope foreign body clamping device, to improve the stability and safety of clamping foreign body.
[0005] To solve the above technical problems, the utility model adopts the technical scheme: a kind of digestive endoscope foreign body clamping device, including catheter, forceps head and pull wire, the end of the catheter is fixedly connected with the forceps head, the forceps head includes a plurality of circumferentially arranged forceps petals, the accommodation space is formed between each forceps petal, the end of the forceps petal away from the catheter is winding part, one end of the pull wire extends from the catheter, the other end of the pull wire is connected with the winding part to drive the winding part to be wound towards the center direction of the accommodation space.
[0006] In the technical scheme of the utility model, by pulling the traction line passing through the catheter, the winding part can be driven to fold inward, so as to clamp the foreign body, which can effectively prevent the foreign body from falling off during clamping, improve the stability and safety during clamping. For some large foreign bodies, compared with the existing point contact clamping device, the contact area of the winding part with the foreign body is large, which can improve the stability of clamping.
[0007] Further, a wire channel is formed in the inner side of the forceps petal close to the center of the forceps head, one end of the wire channel close to the catheter is provided with a wire opening, the other end of the wire channel extends into the winding part, and the pull wire passes through the wire channel and is connected with the winding part.
[0008] In the scheme, the traction line is arranged in the wire channel, which can avoid direct contact between the traction line and the digestive tract of the patient, and avoid winding of the traction line to affect the curling of the winding part.
[0009] Further, the wire channel comprises a first channel, a second channel and a third channel, the wire opening is arranged at one end of the first channel close to the catheter, the second channel has two ends, and each end of the two second channels is respectively communicated with the other end of the first channel, the other ends of the two second channels are respectively communicated with the two ends of the third channel, the second channel and the third channel are arranged in the winding part, and the third channel extends along the circumference of the forceps head.
[0010] In the scheme, the first channel, the two second channels and the third channel are arranged, the traction line can pass through the catheter, pass through the first channel, the second channel and the third channel in sequence, and then return to the first channel from the other second channel and pass out of the catheter. The third channel extends along the circumference of the forceps head, which increases the contact length of the traction line with the winding part, so that the winding part is uniformly stressed in the winding direction.
[0011] Further, the two second channels are symmetrically arranged along the two sides of the first channel.
[0012] In the scheme, the second channels are symmetrically arranged to make the winding part be uniformly stressed when being curled.
[0013] Further, the two second channels are V-shapedly distributed along the two sides of the first channel.
[0014] In the scheme, the second channels are V-shapedly distributed, which can facilitate the traction line to pass into the wire channel.
[0015] Further, the forceps petals are provided with an embedded groove on the outer side away from the center of the forceps head, the embedded groove is communicated with the third channel, and the embedded groove is detachably connected with a blocking piece for closing the embedded groove.
[0016] In the scheme, when the traction line is passed in, the two ends of the traction line are respectively passed into the two ends of the third channel through the embedded groove, and then passed through the first channel after passing through the two second channels, and finally passed out of the catheter, and the middle part of the traction line is arranged in the third channel through the embedded groove. The embedded groove is arranged to facilitate the traction line to pass into the wire channel. The blocking piece prevents the traction line from separating from the embedded groove, and prevents the traction line from directly contacting the digestive tract.
[0017] Further, the adjacent sides of each forceps petal abut each other to form a circumferentially closed forceps head.
[0018] In the scheme, the pincers head is formed by abutting against each jaw flap, and when the pincers head is closed, small foreign matters can be completely wrapped in the pincers head, the safety and stability of foreign matter clamping are improved, the contact between the foreign matter and the digestive tract is avoided, and secondary injury is prevented.
[0019] Further, the jaw flap is close to the fixed part of the catheter, the fixed part is connected with the fixed ring close to the end of the catheter, and the fixed ring is sleeved on the end of the catheter.
[0020] In the scheme, the pincers head is connected with the catheter through the fixed ring.
[0021] Further, the inside of the pincers head is circumferentially distributed with a plurality of sawtooth parts, and each sawtooth part is fixedly connected to the inside of the fixed part.
[0022] In the scheme, the sawtooth part can assist in hooking the foreign matter, and the stability of foreign matter clamping is improved.
[0023] Further, the pincers head is a horn shape with an opening facing away from the end of the catheter.
[0024] In the scheme, by setting the horn-shaped opening pincers head, the opening area can be increased to grasp larger foreign matters.
[0025] Further, the winding part is made of silica gel material.
[0026] In the scheme, the winding part is made of silica gel material, which can be wound under the pulling of the pulling line, and the silica gel material will not affect the health of the patient.
[0027] Further, the fixed part is made of stainless steel material.
[0028] Compared with the prior art, the beneficial effects of the utility model are:
[0029] First, the digestive endoscope foreign matter clamping device can drive the winding part to close into the containing space by pulling the pulling line through the catheter, so as to clamp and wrap the foreign matter, effectively avoid the foreign matter from falling during clamping, and improve the stability and safety during foreign matter clamping. Compared with the existing point contact clamping device, the contact area between the winding part and the foreign matter is large, and the stability of clamping is improved.
[0030] Second, the digestive endoscope foreign matter clamping device sets the pulling line in the wire channel, which can avoid the direct contact between the pulling line and the digestive tract of the patient, and avoid the winding of the pulling line affecting the curling of the winding part. BRIEF DESCRIPTION OF DRAWINGS
[0031] Figure 1It is the overall structure schematic diagram of the digestive endoscope foreign body clamping device of the utility model;
[0032] Figure 2 It is Figure 1 The cross section along the first channel axis;
[0033] Figure 3 It is Figure 1 The cross section along the second channel axis;
[0034] Figure 4 It is Figure 2 The structure schematic diagram of the digestive endoscope foreign body clamping device after rolling of the utility model;
[0035] Figure 5 It is Figure 1 The explosion view of the utility model;
[0036] Figure 6 It is the cross section along the wire channel of the optional embodiment of the utility model;
[0037] Figure 7 It is the cross section along the wire channel of another embodiment of the utility model;
[0038] In the drawing: 1, catheter; 2, tongs head; 21, tongs petal; 211, rolling part; 212, fixed part; 213, fixed ring; 22, wire channel; 221, first channel; 222, second channel; 223, third channel; 23, wire opening; 24, embedded slot; 3, pull wire; 4, blocking piece; 5, sawtooth part; 6, containing space. DETAILED DESCRIPTION
[0039] The drawing is only for example description, and can not be understood as the limitation of the patent; in order to better illustrate the embodiment, some components of the drawing can be omitted, enlarged or reduced, and the size of the actual product is not represented; for the person skilled in the art, some well-known structures in the drawing and their description can be omitted, which can be understood. The positional relationship described in the drawing is only for example description, and can not be understood as the limitation of the patent.
[0040] The same or similar labels in the drawing of the utility model embodiment correspond to the same or similar components; in the description of the utility model, it is understood that if the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "long" and "short" is based on the orientation or positional relationship shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and not indicating or implying that the device or element must have a specific orientation, a specific orientation and operation, therefore the positional relationship described in the drawing is only for example description, and can not be understood as the limitation of the patent, for the person skilled in the art, the specific meaning of the above terms can be understood according to the specific situation.
[0041] The technical scheme of the utility model will be further specifically described below by means of specific embodiments and in conjunction with the drawings:
[0042] Embodiment 1
[0043] Reference Figures 1 to 6 The embodiment discloses a digestive endoscope foreign body clamping device which comprises a catheter 1, a forceps head 2 and a pull wire 3, the end of the catheter 1 is fixedly connected with the forceps head 2, the forceps head 2 comprises a plurality of forceps petals 21 arranged in a circumferential direction, a containing space 6 is formed between each forceps petal 21, one end of the forceps petal 21 away from the catheter 1 is a winding part 211, one end of the pull wire 3 extends from the catheter 1, and the other end of the pull wire 3 is connected with the winding part 211 so as to drive the winding part 211 to wind towards the center direction of the containing space 6.
[0044] A wire channel 22 is arranged in the inner side of the forceps petal 21 close to the center of the forceps head 2, one end of the wire channel 22 close to the catheter 1 is provided with a wire opening 23, and the other end of the wire channel 22 extends into the winding part 211, and the pull wire 3 is connected with the winding part 211 by penetrating through the wire channel 22.
[0045] The digestive endoscope foreign body clamping device of the embodiment can drive the winding part 211 to fold into the containing space 6 by pulling the pull wire penetrating through the catheter 1, so that the foreign body is wrapped and clamped, the foreign body can be effectively prevented from falling in the clamping process, and the stability and safety in the foreign body clamping process are improved. In actual use, the digestive endoscope can be inserted into the catheter 1 so as to observe the position of the foreign body and clamp the foreign body.
[0046] The existing foreign body clamping device is usually point contact or line contact, and the foreign body is clamped by two or more clamping jaws, and the contact area with the foreign body is small. The device of the embodiment is face contact with the foreign body through the winding part 211, and the stability of clamping can be improved for some foreign bodies with a larger volume. For foreign bodies with a smaller volume, the device of the embodiment can completely wrap the foreign body in the forceps head 2, so that the foreign body is prevented from falling or being secondarily damaged in the digestive tract. Meanwhile, the device of the embodiment arranges the pull wire in the wire channel 22, so that the pull wire is prevented from directly contacting the digestive tract of the patient and from being wound to affect the curling of the winding part 211.
[0047] Specifically, the forceps head 2 can be composed of three forceps petals 21, each forceps petal 21 occupies 120 degrees of a circumference and forms the forceps head 2, and one end of the forceps petal 21 away from the catheter 1 is the winding part 211, that is, one end of the forceps petal 21 away from the catheter 1 is the winding part 211. The winding part 211 is a flexible structure and can curl inward under the pulling of the pull wire, so as to grasp the foreign body.
[0048] In some other embodiments, the jaw head 2 can also be composed of other number of jaw petals 21, such as four, five, etc.
[0049] In the present embodiment, the wire channel 22 includes a first channel 221, two second channels 222 and a third channel 223. The wire opening 23 is arranged at one end of the first channel 221 close to the catheter 1. The two second channels 222 are arranged at two sides of the first channel 221 respectively. The two ends of the two second channels 222 are communicated with the other end of the first channel 221 respectively. The other ends of the two second channels 222 are communicated with the two ends of the third channel 223 respectively. The second channel 222 and the third channel 223 are arranged in the winding part 211. The third channel 223 extends along the circumferential direction of the jaw head 2.
[0050] Specifically, referring to Figure 1 and Figure 6 , the first channel 221 extends along the axial direction of the catheter 1. The first channel 221 does not extend completely parallel to the axial direction of the catheter 1, but has a tendency to extend in this direction. For example, in the present embodiment, the jaw head 2 is in a trumpet shape which opens outward generally. Therefore, the first channel 221 extends along the axial direction and extends outward along the trumpet-shaped opening.
[0051] The second channel 222 is arranged at two sides of the first channel 221. The second channel 222 extends towards the axial direction of the jaw head 2 and extends to both sides of the first channel 221, so that the second channel 222 can extend to both sides of the middle part of the winding part 211 to cover a larger range of the winding part 211. The third channel 223 is communicated with the two second channels 222, so that the traction line can pass through the first channel 221, the second channel 222 and the third channel 223 in sequence, and then pass out from the other side of the second channel 222 to the first channel 221.
[0052] Referring to Figure 6 , in the present embodiment, the second channel 222 can be in a substantially L shape, and the two ends of the L shape are connected with the first channel 221 and the third channel 223 respectively.
[0053] In the present embodiment, the second channel 222 and the third channel 223 extend along the circumferential direction of the jaw head 2, which increases the contact length of the traction line with the winding part 211 in the width direction, so that the winding part 211 is uniformly stressed in the winding direction.
[0054] Referring to Figure 7 , in some other embodiments, the second channel 222 can also be in an inclined straight line shape. The two second channels 222 are arranged symmetrically along the two sides of the first channel 221 in a V shape. By arranging the two second channels 222 in a V shape and symmetrically, the winding part 211 is uniformly stressed when it is curled, and the traction line is easily inserted into the wire channel 22.
[0055] Reference Figure 1 In the embodiment, the jaw head 2 is trumpet-shaped with an opening facing away from the catheter 1. By setting the trumpet-shaped opening of the jaw head 2, the opening area can be increased to grasp larger foreign bodies.
[0056] In the embodiment, the winding part 211 is made of silica gel material, which can be wound under the pulling of the pulling wire 3, and the silica gel material does not affect the health of the patient.
[0057] Reference Figure 1 In the embodiment, the adjacent sides of each jaw flap abut to form a circumferentially closed jaw head. By abutting each jaw flap to form a circumferentially closed jaw head, there is no gap between the adjacent jaw flaps, so the foreign body cannot be exposed between the jaw flaps. When the jaw head is closed, smaller foreign bodies can be completely wrapped in the jaw head, improving the safety and stability of foreign body clamping, avoiding contact with the digestive tract, and preventing secondary injury.
[0058] For some smaller foreign bodies, the device of the embodiment can completely wrap the foreign body in the closed jaw head. For some larger foreign bodies, the device of the embodiment can at least improve the wrapping of the foreign body in the circumferential direction, thereby improving the stability and safety of foreign body clamping.
[0059] Embodiment 2
[0060] Reference Figures 1 to 3 The embodiment is similar to embodiment 1, and discloses a digestive endoscope foreign body clamping device, which comprises a catheter 1, a jaw head 2, and a pulling wire 3. The end of the catheter 1 is fixedly connected with the jaw head 2. The jaw head 2 comprises a plurality of jaw flaps 21 arranged in a circumferential direction. The end of the jaw flap 21 away from the catheter 1 is a winding part 211. A wire channel 22 is formed in the inner side of the jaw flap 21 close to the center of the jaw head 2. A wire opening 23 is arranged at the end of the wire channel 22 close to the catheter 1. The other end of the wire channel 22 extends into the winding part 211. The pulling wire 3 passes through the catheter 1 and the wire channel 22.
[0061] Compared with embodiment 1, the difference lies in that in the embodiment, an embedding groove 24 is formed on the outer side of the jaw flap 21 away from the center of the jaw head 2, and the embedding groove 24 communicates with the third channel 223.
[0062] Specifically, the embedding groove 24 communicates with the entire length of the third channel 223, that is, the embedding groove 24 serves as an entrance for the third channel 223 to communicate with the outside. When the pulling wire is inserted, the two ends of the pulling wire are inserted into the two ends of the third channel 223 from the embedding groove 24, respectively, and then pass through the two second channels 222 and the first channel 221, and finally pass out of the catheter 1. The middle part of the pulling wire is placed in the third channel 223 through the embedding groove 24. The embedding groove 24 is arranged to facilitate the insertion of the pulling wire into the wire channel 22.
[0063] Reference Figure 1 and Figure 5 In this embodiment, the embedding groove 24 is detachably connected with a blocking piece 4 for closing the embedding groove 24. The blocking piece 4 prevents the traction line from being detached from the embedding groove 24, and also prevents the objects in the digestive tract of the patient from directly contacting the embedding groove 24, and prevents the digestive juice from entering the wire channel 22.
[0064] Reference Figures 1 to 5 In this embodiment, the fixed part 212 of the pincer flap 21 is close to one end of the catheter 1, the fixed part 212 is connected with a fixed ring 213 close to one end of the catheter 1, the fixed ring 213 is sleeved on one end of the catheter 1, and the pincer head 2 is connected with the catheter 1 through the fixed ring 213.
[0065] Specifically, the fixed part 212 and the fixed ring 213 can be made of stainless steel, and the fixed part 212 and the fixed ring 213 can be connected by thread connection or integrated. The fixed ring 213 and the catheter 1 can be connected by interference fit or thread connection.
[0066] Embodiment 3
[0067] Reference Figures 1 to 5 This embodiment is similar to embodiment 1, and discloses a digestive endoscope foreign body clamping device, which comprises a catheter 1, a pincer head 2 and a traction line 3. The end of the catheter 1 is fixedly connected with the pincer head 2. The pincer head 2 comprises a plurality of pincer flaps 21 arranged in a circumferential direction. The end of the pincer flap 21 away from the catheter 1 is a rolling part 211. A wire channel 22 is formed in the inner side of the pincer flap 21 close to the center of the pincer head 2. A wire opening 23 is arranged at one end of the wire channel 22 close to the catheter 1. The other end of the wire channel 22 extends into the rolling part 211. The traction line 3 passes through the catheter 1 and the wire channel 22.
[0068] The difference between this embodiment and embodiment 1 or embodiment 2 is that in this embodiment, a plurality of sawtooth pieces 5 are distributed in the circumferential direction inside the pincer head 2, and each sawtooth piece 5 is fixedly connected to the inner side of the fixed part 212. The sawtooth part can assist in hooking the foreign matter and improve the stability of foreign matter grabbing.
[0069] Specifically, a single sawtooth piece 5 is fixedly connected to the inner side of the fixed part 212 along the length direction of the catheter 1. In other embodiments, the sawtooth piece 5 can be integrated with the fixed part 212. A plurality of sawtooth pieces 5 are arranged in the circumferential direction of the pincer head 2, which can form a surrounding state to the foreign matter. When grabbing a large volume of foreign matter, the sawtooth piece 5 can hook the foreign matter, so that the grabbing is stable. The sawtooth direction of the sawtooth piece 5 can be towards the side of the catheter 1, so as not to block the foreign matter from entering the pincer head 2. If the foreign matter has a tendency to separate from the pincer head 2, the sawtooth piece 5 can hook the foreign matter to play a blocking role.
[0070] Obviously, the above embodiments of the present application are merely examples for clearly illustrating the present application, and are not intended to limit the embodiments of the present application. For those skilled in the art, on the basis of the above description, other different forms of changes or variations can also be made. Here, it is not necessary and impossible to exhaust all the embodiments. Any modification, equivalent replacement and improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.
Claims
1. A foreign body retrieval device for digestive endoscopy, characterized in that: The device includes a conduit (1), a clamp head (2), and a pull wire (3). The end of the conduit (1) is fixedly connected to the clamp head (2). The clamp head (2) includes a plurality of clamp flaps (21) arranged circumferentially, and a receiving space (6) is formed between each clamp flap (21). The end of the clamp flap (21) away from the conduit (1) is a winding part (211). One end of the pull wire (3) extends from the conduit (1), and the other end of the pull wire (3) is connected to the winding part (211) to drive the winding part (211) to wind towards the center of the receiving space (6).
2. The foreign body retrieval device for digestive endoscopy according to claim 1, characterized in that: The clamping jaw (21) has a cable routing channel (22) inside on the side near the center of the clamping head (2). The cable routing channel (22) has a cable routing opening (23) at one end near the guide tube (1). The other end of the cable routing channel (22) extends into the winding section (211). The pulling wire (3) passes through the cable routing channel (22) and connects to the winding section (211).
3. The foreign body retrieval device for digestive endoscopy according to claim 2, characterized in that: The cable routing channel (22) includes a first channel (221), a second channel (222), and a third channel (223). The cable routing opening (23) is located at one end of the first channel (221) near the guide tube (1). There are two second channels (222), and one end of each of the two second channels (222) is connected to the other end of the first channel (221). The other ends of the two second channels (222) are connected to both ends of the third channel (223). The second channel (222) and the third channel (223) are located in the winding section (211). The third channel (223) extends circumferentially along the pliers head (2).
4. The foreign body retrieval device for digestive endoscopy according to claim 3, characterized in that: The two second channels (222) are arranged symmetrically on both sides of the first channel (221).
5. The foreign body retrieval device for digestive endoscopy according to claim 4, characterized in that: The two second channels (222) are distributed in a V-shape along both sides of the first channel (221).
6. The foreign body retrieval device for digestive endoscopy according to claim 5, characterized in that: An embedding groove (24) is provided on the outer side of the clamping jaw (2) away from the center of the clamping head (2). The embedding groove (24) is connected to the third channel (223). A blocking piece (4) for closing the embedding groove (24) is detachably connected to the embedding groove (24).
7. The foreign body retrieval device for digestive endoscopy according to claim 1, characterized in that: The adjacent sides of each of the clamping lobes (21) abut against each other to form a circumferentially closed clamping head (2).
8. The foreign body retrieval device for digestive endoscopy according to claim 1, characterized in that: The clamp (21) has a fixing part (212) at one end near the conduit (1), and a fixing ring (213) is connected to the fixing part (212) at one end near the conduit (1). The fixing ring (213) is sleeved on one end of the conduit (1).
9. The foreign body retrieval device for digestive endoscopy according to claim 8, characterized in that: The inside of the pliers head (2) has a plurality of serrated parts (5) distributed along the circumference, and each of the serrated parts (5) is fixedly connected to the inside of the fixing part (212).
10. The foreign body retrieval device for digestive endoscopy according to claim 1, characterized in that: The clamp head (2) is trumpet-shaped with its opening facing away from the end of the catheter (1).