Can I get my chip remade? | It depends on the fault and what can be changed [OK Prostate Chip]

This page is based on entries from "ok-lab's diary" (https://ok-lab.hatenablog.com/), the Japanese development diary written by Mr. Okada, founder of OK Lab, a small company in Japan (Okada Comfortable Life Laboratory). Only the entries about "when a chip can be remade" are summarized here, in order of publication. Past prices and sizes are as written at the time. Current prices come from the official product list (retrieved September 4, 2026). Quotations are translated from Japanese.

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Note: This page is a personal reading log by someone with no connection to the maker or the seller. It reflects the source entries as of their publication dates and makes no guarantee of accuracy or safety. The product is not a medical device; talk to a doctor about any health decision. Check the official site for current information. This page contains advertising.

In short

• Replacement depended on the fault, the product's limits, and whether another version could solve the problem.
• The maker offered inspection, repairs, remakes, or refunds, with some narrowly defined exceptions.
• The latest entry describes inspection and replacement; today's general replacement terms are not recorded in the material.

If you see blood in your urine, even a small amount or for the first time, do not wait and see. See a urologist right away. If you suddenly cannot urinate, or the device cannot be removed, do not try to fix it yourself. Go to a medical facility, including emergency care, immediately.

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About this product

The OK Prostate Chip is a small device that is placed in the urethra (the urine passage) so that it acts on the prostate; the maker sells it in several shapes, sizes and materials. It is made and sold by OK Lab (Okada Comfortable Life Laboratory), a small company in Japan, through its own online store, and prices are in Japanese yen (JPY).

The maker's development diary, "ok-lab's diary", is written in Japanese. This page is an English summary of it, and every quotation is translated. OK Lab ships internationally, so readers outside Japan can order (see "Buying from outside Japan" below).

Product names on this page are plain-English descriptions. The official Japanese product name is shown once in the product table so you can find the same item in the store.

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Before you read: key terms

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What happens: chip replacement

The OK Prostate Chip is a small device placed in the urethra (the urine passage) to act on the prostate. Replacement requests concern the chip, resin (a coating that secures connecting threads), or attached wires. A remake means making the item again, while a repair addresses part of the existing item. The maker sometimes offered a refund instead, particularly when another item would have the same problem.

Peeling resin qualified for chip replacement, but repeated failure was excluded

In an entry published in February 2018, Mr. Okada described 2 reports of peeling resin on linked chips. He attributed this to reverse force on the connecting thread during placement. He said even thicker coatings could not eliminate the problem.

For affected chips shipped in January 2018, he offered replacement after receiving a photograph of the peeling. The diary does not record whether replacements were sent. Mr. Okada asked customers to accept that repeated peeling would not qualify for another exchange.

(Source: ok-lab's diary, published February 2018)
https://ok-lab.hatenablog.com/entry/20180214/1518601774

A ceramic chip replacement was refused when the requested finish seemed unattainable

In an entry published in October 2019, a customer requested a replacement long ceramic chip. They reported bleeding, raised resin, and breakage, and suspected the ceramic had not hardened properly. Its listed order price was ¥7,560 (about $48 at ¥156 = $1, rate as of 2026-09-04), as published in October 2019.

Mr. Okada said he could not judge the claimed ceramic defect without consulting the potter. The diary does not record whether the customer accepted his proposed resolution. Mr. Okada offered a refund because he could not make the requested alternative.

(Source: ok-lab's diary, published October 2019)
https://ok-lab.hatenablog.com/entry/2019/10/05/141806

Free chip repair did not include switching to another product

In an entry published in October 2022, a customer reported a detached wire on a wire-loop chip. Mr. Okada offered free repair, suspecting that the wire had not been anchored deeply enough. The customer declined because they felt unable to trust it, requesting a stainless-steel chip instead.

The diary does not record whether the eventual refund was completed. Mr. Okada also wrote that converting this design took much longer than making a new item. He declined the requested change of chip type and offered a refund.

(Source: ok-lab's diary, published October 2022)
https://ok-lab.hatenablog.com/entry/2022/10/01/122944

Free replacement for the older plate depended on earlier success

An entry published in April 2023 announced a free exchange for an external plate designed to hold the penis out of view. The replacement had a larger central opening. Mr. Okada limited the offer to owners who had achieved concealment and wanted more from the design.

He did not expect the change to solve an earlier inability to achieve concealment. No matching product can be confirmed on the current list. Mr. Okada invited eligible owners to request the exchange by email, explaining that making replacements would take time.

(Source: ok-lab's diary, published April 2023)
https://ok-lab.hatenablog.com/entry/2023/04/22/123057

Pain prompted an exceptional chip repair despite the usual restriction

An entry published in October 2024 records requested changes to 2 recently purchased chips with locking-loop cables. The customer reported pain and ultimately requested moving the curved section 1.5 cm farther from the chip. Staff initially declined because position changes involved nearly as much work as a new build.

Mr. Okada later reported an adjustment and offered a full rebuild if needed; the diary records no subsequent customer assessment. No matching product can be confirmed on the current list. OK Lab accepted work at cost as a one-time exception, explaining that it normally accepted only simple thread changes.

(Source: ok-lab's diary, published October 2024)
https://ok-lab.hatenablog.com/entry/2024/10/19/122847

Bleeding prompted a chip replacement offer despite the item's age

In an entry published in December 2025, a customer reported bleeding after a wire joint failed on a custom chipless device. Mr. Okada identified a loose 0.4 mm double-wire loop, but could not establish which loop from the photograph. The customer ultimately declined compensation, saying their report was for information.

No matching product can be confirmed on the current list. Mr. Okada said the item was about half a year old and normally outside refund handling. He nevertheless offered a refund or remake because the reported bleeding prompted an exception.

(Source: ok-lab's diary, published December 2025)
https://ok-lab.hatenablog.com/entry/2025/12/27/122915

A reported steel defect led to chip replacement after inspection

In an entry published in January 2026, a customer reported a burr (an unwanted rough edge) on a stainless-steel chip. This followed an earlier wrong-size shipment, and the customer had altered the rough area before returning it. OK Lab chose a new replacement because the changed surface lacked shine and caused concern.

Mr. Okada said the original burr could no longer be assessed from the returned item. He explained that his workshop could not properly refinish such faults. Mr. Okada advised reporting defects so their condition could be checked and an exchange arranged.

(Source: ok-lab's diary, published January 2026)
https://ok-lab.hatenablog.com/entry/2026/01/24/122909

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The maker's answer to chip replacement

The dividing line was whether the maker could correct a fault or expected another remake to reproduce the same concern.

A smaller chip remake was offered before the order shipped

In an entry published in July 2018, Mr. Okada described screw-shaped custom chips that came out larger than expected. One request specified 34 mm length and 8 mm width; the finished chip measured 35 mm and 9 mm. He wrote that twisting had not narrowed the piece as expected.

The diary does not record whether this customer requested a smaller remake. No matching product can be confirmed on the current list. Mr. Okada offered smaller remakes for screw chips considered too large, provided they had not yet shipped.

(Source: ok-lab's diary, published July 2018)
https://ok-lab.hatenablog.com/entry/20180721/1532152353

Chip replacement depended on inspection against the maker's usual finish

In an entry published in February 2020, a customer requested an exchange after feeling a catch in white resin. OK Lab offered inspection, promising a remake for a manufacturing defect or a refund for a finish within its standard. The returned chip was judged consistent with normal shipments.

Mr. Okada considered a visible thread outline beneath intact resin acceptable, provided the thread was not exposed. He said remaking this item would produce much the same finish. Mr. Okada offered a return and refund for the concern another remake could not resolve.

(Source: ok-lab's diary, published February 2020)
https://ok-lab.hatenablog.com/entry/2020/02/15/144151

Photographs alone did not settle eligibility for chip repair

An entry published in October 2021 records pain with a studded version 4 sea-slug-shaped ceramic chip. The customer asked about smoothing its rear resin after being unable to place the chip. Staff thought the photographs showed their usual finish, but acknowledged that photographs might not settle the issue.

No matching product can be confirmed on the current list. The diary does not record a later inspection result. OK Lab advised returning it for inspection: a quality problem meant thread replacement; a finish judged normal meant a refund.

(Source: ok-lab's diary, published October 2021)
https://ok-lab.hatenablog.com/entry/2021/10/09/125823

An initial chip replacement offer changed after the returned item arrived

In an entry published in April 2023, a customer requested surface repair after bleeding with a version 4 sea-slug-shaped ceramic chip. Staff initially offered repair or replacement after checking the item. After inspection, they judged the thin resin coverage normal for that shape and doubted it directly caused the bleeding.

They then said an exchange would probably reproduce the concern, changing their proposed response. The diary does not record which final option the customer chose. OK Lab offered either the same chip back or a refund.

(Source: ok-lab's diary, published April 2023)
https://ok-lab.hatenablog.com/entry/2023/04/22/123057

If you see blood in your urine, even a small amount or for the first time, do not wait and see. See a urologist right away. If you suddenly cannot urinate, or the device cannot be removed, do not try to fix it yourself. Go to a medical facility, including emergency care, immediately.

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How chip replacement changed over time

The diary does not say what the current state is.

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OK Prostate Chip products related to chip replacement

No current product is directly tied to this topic.

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Common worries about chip replacement

Customers asked about surface defects, return requirements, and whether a custom remake could meet their size limits.

"Can a chip remake fix uneven ceramic and thick resin?"

In an entry published in May 2020, a customer questioned uneven glaze (the glass-like ceramic coating) on a sea-slug-shaped chip. They also requested thinner resin on a four-point twist ceramic chip that caught and caused pain. Mr. Okada said the surface problem's cause remained unknown, so a remake would not resolve it; he offered return and refund.

The diary does not record whether either proposal was accepted. For the twist chip, he quoted ¥1,100 (about $7 at ¥156 = $1, rate as of 2026-09-04) plus a handling fee for thread replacement, as published in May 2020. Mr. Okada offered thinner resin through that service, warning that the thread's attachment would become slightly weaker.

(Source: ok-lab's diary, published May 2020)
https://ok-lab.hatenablog.com/entry/2020/05/30/125906

"Does a free replacement mean returning the old plate?"

In an entry published in April 2023, a customer asked what to return for the plate exchange. OK Lab said the existing item did not need to be sent back. Mr. Okada defined the exchange as ending his responsibility for the old product when the new one arrived.

Staff said making and shipping the replacement would take time. The diary does not record delivery for this request. Mr. Okada encouraged owners already satisfied with their existing plate to request the newer version as well.

(Source: ok-lab's diary, published April 2023)
https://ok-lab.hatenablog.com/entry/2023/04/29/123107

"Can a custom chip remake still be too large?"

In an entry published in October 2024, OK Lab acknowledged overlooking a customer's size limit for a custom electrical chip. Staff offered a remake or cancellation and clarified thickness of 5.5–6 mm, with minimum width 7 mm subject to slight oversizing. The customer first requested 7.5 mm width, then chose 7 mm width and 50 mm length.

The diary shows the remade chip but records no report of how it felt in use. No matching product can be confirmed on the current list. OK Lab advised considering cancellation because even a smaller remake could not be guaranteed to fit.

(Source: ok-lab's diary, published October 2024)
https://ok-lab.hatenablog.com/entry/2024/10/19/122847

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Buying from outside Japan

OK Lab ships internationally to countries covered by Japan Post's EMS courier service. Overseas orders are paid in advance by PayPal. Each order carries a ¥400 (about $3 at ¥156 = $1, rate as of 2026-09-04) handling fee, and EMS shipping is charged on top. These terms come from OK Lab's official sales-terms page (written here as plain text, not a link: ok-lab.net/docs/law), checked on September 7, 2026; confirm them on the official store before you order, because they can change.

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Summary of this article

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Source: ok-lab's diary (Okada Comfortable Life Laboratory). The original entries are in Japanese; quotations on this page are translated. Photos and videos are on the original entries.